A dewatering element for dewatering a fibrous web has a wear body with a sliding surface. The wear body is formed as a ceramic-reinforced polymer substrate. The dewatering element can be advantageously manufactured and recycled.
The present technology relates to a method of treating a lignin residue. The method comprises the steps of pretreating a lignin residue whereby a lignin-rich liquid stream is provided, contacting the lignin-rich liquid stream with an oxidant in an oxidation step whereby at least one oxidation product is formed in a liquid comprising oxidation products, separating the at least one oxidation product from an oxidized stream, circulating the remaining stream comprising at least one non-recovered product to a digester, and digesting the non-recovered product to form biogas.
The invention relates to a rectifier arrangement for hydrogen electrolysis, comprising a transformer (1) with a primary winding (2) for connecting an input alternating voltage and a secondary winding (3) for providing an output alternating voltage, and comprising a rectifier (4) connected to the secondary winding (3) for generating an output direct current IDC and an output direct voltage UDC, wherein at the primary winding (2) of the transformer (1) a number N>1 of winding taps (5) are provided, and a load stage switch (6) connected to a controller (7) is provided which is designed for switching the winding taps (5) without interruption such that the transformation ratio of the transformer (1) can be switched via the controller (7) in N stages.
H02M 1/084 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters using a control circuit common to several phases of a multi-phase system
H02M 1/12 - Arrangements for reducing harmonics from AC input or output
H02M 1/14 - Arrangements for reducing ripples from DC input or output
4.
CONTROLLABLE RECTIFIER ARRANGEMENT FOR HYDROGEN ELECTROLYSIS
H02M 5/12 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using transformers for conversion of voltage or current amplitude only
H02M 7/06 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
5.
METHOD FOR TREATING PULP, A PULP COMPOSITION AND PRODUCTS THEREOF
According to an example aspect of the present invention, there is provided a method comprising treating a composition comprising paper-grade pulp with ozone to adjust intrinsic viscosity of the paper-grade pulp to below 550 ml/g The paper grade-pulp comprises at least 10 wt-% of hemicellulose of the dry weight of the paper-grade pulp, and the pH of the composition is at least 5.5 at the beginning of the treatment.
The invention relates to an electrolysis module (1) for alkaline hydrogen electrolysis, comprising an anode (2), a cathode (3) and a separating layer (4) which is arranged between the anode (2) and the cathode (3), two electrically insulating and substantially structurally identical support frames (10, 10') which are connected to one another at their edges, wherein the anode (2) is connected to the first support frame (10), and the cathode (3) is connected to the second support frame (10') so that an anode chamber (6) and a cathode chamber (7) are formed, wherein, in each of the anode-side support frame (10) and the cathode-side support frame (10'), two inflow manifolds (8, 8') for supplying electrolysis medium and two outflow manifolds (9, 9') for discharging electrolysis and product medium are provided, and wherein the support frames (10, 10') are arranged in such a way that the inflow manifolds (8, 8') and the outflow manifolds (9, 9') of adjacent support frames (10, 10') are arranged substantially congruently, wherein, in each of the support frames (10, 10'), one of the inflow manifolds (8, 8') has a first magnetic current sensor (12, 12') and one of the outflow manifolds (9, 9') has a second magnetic current sensor (13, 13').
C25B 1/04 - Hydrogen or oxygen by electrolysis of water
C25B 9/63 - Holders for electrodesPositioning of the electrodes
C25B 9/77 - Assemblies comprising two or more cells of the filter-press type having diaphragms
C25B 15/023 - Measuring, analysing or testing during electrolytic production
G01N 27/74 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables of fluids
According to an example aspect of the present invention, there is provided a system for an industrial process, comprising a combustion apparatus configured to burn a fuel to convert water into steam at a first pressure, a mechanical device and/or chemical process, driven by the steam at the first pressure, configured to exhaust steam at a second pressure, and a carbon capture arrangement, driven by a pressurized fluid obtained in the system, configured to extract carbon dioxide from exhaust produced by the industrial process.
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
F23J 15/04 - Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
F01K 13/00 - General layout or general methods of operation, of complete steam engine plants
F01K 17/00 - Use of steam or condensate extracted or exhausted from steam engine plant
8.
A METHOD AND AN APPARATUS FOR MANUFACTURING CELLULOSIC SLURRY FOR MAN-MADE CELLULOSIC FIBER PRODUCTION
The invention relates to a method for manufacturing cellulosic slurry for man-made cellulosic fiber production having a main process (100), the main process (100) comprising method steps of -providing pulp slurry (101), -dewatering (102) the pulp slurry at least partly to form pulp mass, -opening (108) the pulp mass for producing pulp with loosened cellulosic fibers, -drying (109) the pulp with loosened cellulosic fibers in a flash dryer (11-17) to form fluffy pulp, -mixing (107) the fluffy pulp in a mixer (18; 20) with a cellulose-swelling or dissolving medium to form cellulosic slurry for man-made cellulosic fiber production. The invention relates also to an apparatus (10) for manufacturing cellulosic slurry for man-made cellulosic fiber production.
The invention relates to a seal assembly (1) for a suction roll (6), comprising a holder (2), a seal (3), and an intermediate piece (4). The invention is characterised in that the seal (3) comprises a clamping body (5), the clamping body (5) and the intermediate piece (4) being designed to form a wedge connection. The invention enables the seal to be securely locked in position in the holder.
The invention relates to an electrolysis module (1) for alkaline hydrogen electrolysis, comprising an electrical anode (2), an electrical cathode (3) and a substantially ion-permeable and electrically insulating separating layer (4) which is arranged between the anode (2) and the cathode (3), two support frames (10, 10') which are connected to one another in an electrically insulating manner at their edges, wherein the anode (2) is connected to the first support frame (10) and the cathode (3) is connected to the second support frame (10'), and wherein the anode (2), the cathode (3) and the separating layer (4) are arranged between the two support frames (10, 10') such that an anode chamber (6) and a cathode chamber (7) are formed, and wherein a large-area, substantially planar, metallic bipolar plate (11) is arranged on at least one support frame (10, 10'), wherein in the anode chamber (6) and in the cathode chamber (7) there is provided in each case one carrier structure (12, 12') for mechanically stabilising the bipolar plate (11), wherein at least one of the carrier structures (12') is designed as a wire mesh, wherein the wire mesh comprises or consists of a metallic pseudoelastic shape memory alloy.
CYCLONE SEPARATOR FOR SEPARATING FIBER MATERIAL FROM A FIBER MATERIAL-STEAM MIXTURE, SYSTEM FOR PROCESSING FIBER MATERIAL, AND METHOD FOR OPERATING A CYCLONE SEPARATOR
The invention relates to a cyclone separator for separating fiber material from a fiber material-steam mixture, to a system for processing fiber material, and to a method for operating a cyclone separator, wherein the cyclone separator is designed such that a discharge of fiber material via a fiber material outlet and a co-discharge of steam via the fiber material outlet can be controlled in an improved manner. By means of a conical element which fits in the outlet space which correspondingly widens conically toward the fiber material outlet, the gap width of the annular gap between the conical element and the outlet space inner wall, which circumferentially delimits the outlet space, can be adjusted very simply via a relative movement between the conical element and the outlet end portion.
The invention relates to a valve (1) for a refiner or a system for steam pressure digestion, having an inlet (2) oriented along an inlet direction (4) and an outlet (3) oriented along an outlet direction (5), wherein the outlet direction (5) is at an angle (α) of less than 180 degrees to the inlet direction (4), and a piston (6) which can be moved along the inlet direction (4), wherein, as a result of a movement of the piston (6) along the inlet direction (4), a flow cross-section along a flow path between the inlet (2) and the outlet (3) can be changed, wherein the piston (6) can be moved, counter to the inlet direction (4), from a first position in which the valve (1) is open, into a second position in which the valve (1) is closed, wherein the piston (6) has an end face (7) at which a normal vector (8) is at a normal angle (β) to the inlet direction (4). In order to achieve high efficiency during operation and a particularly long service life, the invention proposes that the piston (6) can be moved counter to the inlet direction (4) beyond the second position, in order in particular to be able to compensate for possible wear on the end face (7).
F16K 3/24 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
F16K 27/04 - Construction of housingsUse of materials therefor of sliding valves
14.
SYSTEM AND METHOD FOR CONTROLLING THE SCREEN TENSION OF A DRYING GROUP
The invention relates to a drying group and to a method for controlling the screen tension of a drying group, wherein, in a first operation, a screen tensioning device applies a first screen tension to the screen. The invention is characterised in that after the operation has been interrupted, the drying group is operated in a second operation, wherein the screen tensioning device applies a second, greater screen tension to the screen. The invention permits a reliable re-feeding of the fibrous web, in particular after operation has been interrupted.
The present technology relates to a method of treating crude methanol comprising the steps in temporal order of distilling the crude methanol to remove at least a portion of one or more sulphurous compounds from the crude methanol and provide a methanol-rich stream, contacting the methanol-rich stream with an oxidant, whereby at least a part of the sulphur compounds in the stream is oxidized, and contacting the methanol-rich stream with an acidifying agent, whereby ammonia present in the stream reacts to form ammonium sulphate in a methanol- rich stream, essentially free of polymerised terpenes.
The present invention relates to a method of removing sulphur from crude methanol the method comprising the steps in temporal order of: distilling the crude methanol to remove at least a portion of one or more sulphurous compounds from the crude methanol and provide a methanol-rich stream, extracting at least a further portion of one or more sulphurous compounds from the methanol-rich stream thereby providing a second methanol-rich stream, contacting the second methanol-rich stream with an oxidant, whereby at least a part of the sulphur compounds in the stream is oxidized, and contacting the second methanol-rich stream with an acidifying agent, whereby ammonia present in the stream reacts to form ammonium sulphate in an acidified second methanol-rich stream.
The invention relates to a process for preparing man-made cellulosic staple fibres (4) for yarn spinning, the process comprising manufacturing man-made cellulosic staple fibres (4) from cellulosic raw material (2) in a manufacturing step (10, 100) providing a mass (6) of wet man-made cellulosic staple fibres (4) as a manufacturing output. The process comprises flash-drying the wet man-made cellulosic staple fibres (4) with heated drying gas flow into dry man-made cellulosic staple fibres (4) in a drying step (150).
F26B 17/10 - Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle
C08L 1/00 - Compositions of cellulose, modified cellulose, or cellulose derivatives
Dispersers and disperser plate segments configured to be mounted in dispersers, wherein the disperser plate segments comprise rows of teeth and wherein bridges span gaps between adjacent teeth in at least one of the rows of teeth, wherein the bridges are separated from a substrate of the front face by an open space in the gap. In other exemplary embodiments, a buttress extends from at least one face of the tooth to support the tooth.
A method for controlling a sealing arrangement for a shaft including: setting a first pressure inside a first annular hollow core of a first annular seal element arranged around the shaft, wherein the first seal element includes a first annular elastic casing surrounding the first annular hollow core and the first annular elastic casing; setting a second pressure inside a second annular hollow core of a second seal element arranged around the shaft, wherein the second seal element includes a second annular elastic casing surrounding the second annular hollow core; monitoring the first pressure inside the first annular hollow core and/or the second annular hollow core; and adjusting the first pressure inside the first annular hollow core and/or the second annular hollow core to adjust sealing of the shaft by the first annular seal element and/or the second annular seal element.
F16J 15/3284 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structureSelection of materials
F16J 15/3296 - Arrangements for monitoring the condition or operation of elastic sealingsArrangements for control of elastic sealings, e.g. of their geometry or stiffness
G01M 3/28 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables, or tubesInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipe joints or sealsInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for valves
21.
SYSTEM FOR PRODUCING A WIDTH-CONTROLLED, WET-LAID FIBROUS WEB, METHOD FOR PRODUCING A WIDTH-CONTROLLED, WET-LAID FIBROUS WEB
The invention relates to a system (100) for producing a fibrous web (1), comprising a distributor (2) and a head box (3) for wet-laying fibres to form the fibrous web (1), wherein a tube bundle (4) for introducing a fibrous material suspension from the distributor (2) into the head box (3) is provided between the distributor (2) and the head box (3), wherein a valve (5) is arranged on each of a plurality of tubes (41) at the lateral edges of the tube bundle (4) for selectively conveying the fibrous material suspension from the distributor (2) into the head box (3) or conveying a replacement liquid from a liquid feed (6) into the head box (3). The invention further relates to a method for producing a fibrous web (1).
The invention relates to an arrangement (1) for delaminating a fibrous material, the arrangement comprising a screw (2) and a spool (3). The invention is characterised in that the regions of greatest curvature (11) of the spool contour are arranged at or closer to an outer envelope (9) of the spool than to an inner envelope (10) of the spool, and the regions of greatest curvature (12) of the screw contour are arranged at or closer to an outer envelope (7) of the screw than to an inner envelope (8) of the screw. The invention enables advantageous delamination of the fibrous material, in particular avoiding delamination by cutting.
B30B 9/12 - Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
A filtration grid for a cell vessel includes: a plurality of supports disposed in a parallel configuration from a first end wall to a second end wall of the cell vessel, each support of the plurality of supports extending from a first sidewall to a second sidewall of the cell vessel. The supports are configured to provide a first specified amount of filtration grid area as open area and a second specified amount of the filtration grid area as support area for a filter element of the cell vessel.
B01D 33/23 - Construction of discs or component sectors thereof
B01D 33/19 - Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with rotary filtering tables the table surface being divided in successively tilted sectors or cells, e.g. for discharging the filter cake
The invention relates to a device for treating a fibrous material, comprising a housing (1), a screw (2), and a bearing (3), wherein the screw (2) is mounted in the bearing (3) so as to be displaceable on one side and in the direction of the axis of rotation (4). The invention is characterized in that the bearing (3) is designed as a plain bearing (7) with a bearing bush (8) or as a hydrostatic radial bearing. The invention allows the absorption of high axial and radial forces with a compact design at the same time.
The invention relates to a machine for producing a fibrous web (1) comprising a Yankee cylinder (2) and a clothing run (4) with a press roll (5), a positioning means (6) and inner guiding means (7) and is characterised in that at least one inner cantilever beam (8) is arranged within the clothing run (4), the press roll (5) and all inner guiding means (7) are connected to the inner cantilever beam (8), the positioning means (6) being connected to the inner cantilever beam (8) and to the press roll (5). The invention further relates to a method and allows efficient changing of the covering (3).
The invention relates to an arrangement (10) for heating pulp with steam wherein the arrangement (10) comprises. -a tube-like body (11), -an inlet (12) having a first connecting means (21) for 5 connecting the tube-like body (11) to an upstream pulp transfer line for receiving the pulp to be heated to the arrangement (10) from the previous process phase, -an outlet (13) having a second connecting means (22) for connecting the tube-like body (11) to a downstream pulp 10 transfer line to feed the pulp heated by the arrangement (10) to a subsequent processing phase, -a steam channel (14) connected to the tube-like body (11) to feed steam from a steam source into the tube-like body (11), 15 and wherein -the steam channel (14) comprises a spring-loaded steam nozzle (40) arranged to control the amount of steam being fed into the pulp flowing in the tube-like body (11). The invention relates also to a method for heating pulp with 20 steam.
D21C 1/02 - Pretreatment of the finely-divided materials before digesting with water or steam
D21B 1/12 - Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods by the use of steam
The invention relates to a protective element (1) for arrangement on the outer circumference of a screw thread (2) of a screw (3), in particular a conveying screw or a compression screw, comprising a wear element (5) that is abraded during operation of the screw (3), wherein the protective element (1) comprises at least one magnetic element (6), in particular a permanent magnet, wherein the magnetic element (6) is arranged in such a way that it is abraded during operation of the screw (3), and is preferably abraded only when a part of the wear element (5) has already been abraded.
B04B 1/20 - Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
The invention relates to an arrangement (10) for connecting a spraying nozzle (11) to a liquor gun of a recovery boiler. The arrangement (10) comprises a support frame (13) that holds a black liquor feeding duct (12) at the liquor gun such that the spraying nozzle (11) can be connected to the outlet end (12a) of the black liquor feeding duct (12) by squeezing a first end (11a) of the spraying nozzle (11) against the outlet end (12a) of the black liquor feeding duct (12) and thereby 10 allowing black liquor to flow from the black liquor feeding duct (12) into the spraying nozzle (11). In the arrangement according to the invention squeezer (16) is an actuator operated squeezer being arranged to squeeze the first end (11a) of the spraying nozzle (11) against the outlet end (12a) of the black liquor feeding duct (12) through a first connecting element (14) at the outer end (12a) of the black liquor feeding duct (12) and a second connecting element (15) at the first end of the spraying nozzle (11). The invention relates also to a liquor gun and a method for connecting a spraying nozzle (11) to a liquor gun.
The invention relates to a method for operating a belt (2) in a machine for producing a fibrous web (3), wherein a fibrous web (3) is transferred to the belt (2) in a first region (6) and is removed from the belt (2) in a transfer region (8). The invention is characterized in that, during operation, a grinding device (9) for setting a desired surface roughness of the belt (2) is guided against the belt (2) between the transfer region (8) and the first region (6). The invention also relates to an arrangement for carrying out the method and allows advantageous and effective operation of the belt (2).
The invention relates to a filter press comprising filter plates (1), wherein filter chambers (3) are formed between adjacent filter plates (1) and a filtrate can be fed from the respective filter chamber (3), in which filter means can be arranged, to a discharge line (5). The invention also relates to a method for monitoring the filter press. The invention is characterised in that at least one turbidity detection module (7) for detecting the turbidity of the filtrate is arranged in the discharge line (5) between feed-in points (6). The invention permits robust and reliable detection of the turbidity of the filtrate or of the condition of the filter means.
Method and apparatus for applying a treatment substance to a running paper or board web comprising an applicator with at least one free-jet nozzle having an outlet gap for applying the treatment substance, being a machine-width, film-like jet, to a moving substrate, in particular at least one applicator roll which transfers the treatment substance to the paper or board web in a treatment nip defined by the at least one applicator roll with a counter element, wherein the free-jet nozzle is positioned at an angle to the moving substrate in such a way that an angle φ to the perpendicular of an impingement line of the coating on the moving substrate is between 5° and 85°, and the intensity of the jet impulse at the impingement line is increased by a gravitational acceleration of the jet caused by an adjustable effective height H from the outlet gap of the free-jet nozzle, and a jet curvature along a path length is modulated via the angle φ.
B05C 1/08 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller
33.
DEVICE FOR FORMING BY CARDING ONE OR MORE FLEECES OF FIBRES, IN PARTICULAR NON-WOVEN
Devices and methods for forming by carding one or more fleece(s) of fibres including a main carding drum supplied with raw fibres, one or more doffer cylinder(s) capable of removing the fibres worked on the carding drum and an associated stripper roller to strip the fleece(s) of fibres formed on the or each doffer and deposit them on one or more output belts. The device and methods also include at least one comb-cleaner flywheel capable of interacting with at least one doffer cylinder to remove dust and impurities therefrom, characterised in that it/they is/are fitted with prevention means which are configured so as to prevent the dust and impurities removed from the comb by the cleaner flywheel from escaping in the direction of the associated stripper roller.
The present invention relates to a method for the production of fossil-free coke from lignin comprising the steps of providing lignin, subjecting the lignin to increased pressure, subjecting the lignin to increased temperature, whereby a combination of increased pressure and temperature releases volatile organic compounds (VOCs), and recovering coke. The present invention relates also to an apparatus (1000) for the production of fossil-free coke from lignin, a use of the apparatus (1000), and the coke obtainable by the method.
C10B 53/02 - Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
C10L 9/08 - Treating solid fuels to improve their combustion by heat treatment, e.g. calcining
B30B 3/00 - Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
B30B 3/02 - Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs co-operating with a fixed member
The invention relates to a method and an arrangement for stabilising a web (1) guided on a covering (9), comprising a web stabiliser (5), which has a first seal (7) and a second seal (8), wherein a removal zone (12), which can be subjected to suction via the web stabiliser (5), is formed between the first seal (7), which is formed against a first drying cylinder (2), and the second seal (8). The invention is characterised in that the second seal (8) is formed against the covering (9) in a first running distance (10) and the first running distance (10) has a length of less than 700 mm. The invention is distinguished by a reduced energy requirement and improved running properties.
A cylinder for drying a fibrous web has a cylinder shell, wherein an electric heating device for heating the cylinder is arranged inside the cylinder. The electric heating device is arranged on the inside of the cylinder shell, forming a conductive thermal connection, wherein the electric heating device comprises at least one electric heating element with carbon nanotubes. This provides a cylinder with a heating device with improved efficiency.
A system for decolorization of material comprising cellulose including: a purification stage for removing non-cellulosic components from cellulose in alkaline process conditions; a first decolorization stage for decolorizing the material comprising cellulose in alkaline process conditions; and a second decolorization stage for decolorizing the cellulose in alkaline process conditions; wherein the first and second decolorization stages use ozone and hydrogen peroxide; wherein the purification stage and the second decolorization stage include washing the cellulose, wherein the purification stage, the first decolorization stage and the second decolorization stage are connected to the subsequent stage by a process line for feeding the cellulose; and wherein each washing arrangement is connected to the washing arrangement of a preceding stage by a filtrate line for feeding wash filtrate of the washer of a preceding stage.
A method for controlling nitrogen flows in a pulp mill which comprises a recovery boiler, a lime kiln, a power boiler and a concentrated non-condensable gases (CNCG) incinerator and/or a wet gas sulfuric acid (WSA) plant is disclosed. Further is disclosed a system for controlling nitrogen flows in a pulp mill.
The invention relates to a device (1) for conditioning a fluid, the device comprising a housing (2) and a first element (4), the fluid being able to be conducted through a first region (15) in order to separate heavy matter from the fluid, and an outlet opening (11) of the first element (4) being separably connected to a housing outlet (6) in order to separate the heavy matter from the first region (15). The invention further relates to a measuring device (20) for detecting a property of the fluid, to a method for conditioning the fluid, and to a method for detecting the property of the fluid. The invention permits the reproducible detection of the property of the fluid, irrespective of heavy matter carried along with the fluid.
The present technology relates to a method of treating an alkaline liquor comprising methanol and one or more components selected from the group consisting of sulphurous organic compounds, hydrogen sulphide (H 2 S), ammonia, acetone, alcohols such as ethanol, extractives such as turpentine, and mixtures thereof. The method comprises the steps in temporal order of contacting the liquor with an oxidant, whereby at least a part of the sulphur compounds in the liquor are oxidized to their oxidized forms providing an oxidised liquor, and contacting the oxidised liquor with an acidifying agent, whereby ammonia present in the oxidised liquor reacts to form ammonium sulphate and provide an acidified liquor, essentially free of polymerised terpenes.
22S), ammonia, acetone, alcohols such as ethanol, extractives such as turpentine, and mixtures thereof. The method comprises the steps in temporal order of contacting the liquor with an oxidant, whereby at least a part of the sulphur compounds in the liquor are oxidized to their oxidized forms providing an oxidised liquor, and contacting the oxidised liquor with an acidifying agent, whereby ammonia present in the oxidised liquor reacts to form ammonium sulphate and provide an acidified liquor, essentially free of polymerised terpenes.
The invention relates to a refrigerator recycling system (1) and to a method (S300) for recycling refrigerators (22), wherein the refrigerator recycling system (1) comprises: a refrigerator comminuting device (10), an inert gas source (30), a dehumidifying cooling device (40), a process gas line (50), a compressor (60), a cooling device (70), a gas-liquid separating device (80), a process gas return line (100), a membrane device (90) and a pressure swing adsorption device (200). The membrane device (90) is designed in such a way that a hydrocarbon-enriched return process gas is obtained from the remaining process gas on the permeate side (92) of the membrane device (90), and a hydrocarbon-depleted transfer process gas is obtained on the retentate side (94) of the membrane device (90), the permeate side (92) of which is connected to the process gas line (50) via an HC-enriched gas return line (110) at a return point (112) upstream of the compressor (60), optionally between the dehumidifying cooling device (40) and the compressor (60), in order to return the hydrocarbon-enriched return process gas to the process gas at said return point (112) and the retentate side (94) of which is connected to an HC-depleted gas transfer line (120) in order to transfer the hydrocarbon-depleted transfer process gas.
B01D 53/00 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
The invention relates to a method for degassing fiber suspension containing gas with a medium consistency pump (11), wherein the medium consistency pump (11) is a centrifugal pump driven by an electric motor (12) and having an impeller rotating in a pump housing (13), an inlet (14) connectable to a fibrous suspension supply line, an outlet (15) connectable to a fibrous suspension discharge line, and at least one degassing channel (16) for discharging gas from the medium consistency pump (11). In the method according to the invention the medium consistency pump (11) is controlled by a controller (17) controlling the degassing differential pressure level based on the operation point of the medium consistency pump's (11) theoretical position on its pump curve. The invention relates also to an apparatus (10) for degassing fiber suspension containing gas.
F04D 7/04 - Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogeneous
The invention relates to an electrolyser for alkaline hydrogen electrolysis, comprising: a direct voltage source, in particular a rectifier (1) having an electrical positive pole (2) and an electrical negative pole (3); media inlet lines (4) for an electrolysis medium; and media outlet lines (5) for product media; wherein a plurality of electrolysis blocks (6) which are connected in series via electrical connecting lines (9) are connected between the positive pole (2) and the negative pole (3), wherein the electrolysis blocks (6) each have a number of electrolysis cells (7) which are electrically connected in series and are mechanically clamped so that they are flush with one another, wherein the media inlet lines (4) and the media outlet lines (5) each extend serially through the electrolysis blocks (6) and are distributed within each individual electrolysis block (6) to individual cell inlet lines (4', 4") and individual cell outlet lines (5', 5") of the electrolysis cells (7).
(1) Equipment for the pulp and papermaking industry, namely, pulp processing machines, papermaking machines, low pressure and high pressure feeder machines, and robotic feeder machines with artificial intelligence for measuring, analyzing, monitoring conditions, and controlling flow in pulp and papermaking processes, and structural parts for the foregoing goods
A method for clearing accumulated material deposits inside a furnace includes initiating a preprogrammed sequence to: position a robot to access an opening in a wall of the furnace; position an end effector of the robot at a specified angle for accessing the opening; operate the robot to cause the end effector to penetrate the accumulated material deposits; and retract the end effector.
The invention relates to a method for preparing batteries (100) to be recycled, having at least the following steps: - comminuting a provided battery (100) to be recycled in order to obtain comminuted material (101), the provided battery (100) to be recycled and/or the comminuted material (101) obtained therefrom being thermally pre-treated in a comminuting chamber (3a) by being heated up to a comminuting temperature (TZ) which is lower than 100 °C; - transferring the comminuted material (101) into a drying container (4a) and thermally treating the comminuted material (101) by raising the actual ambient temperature (TActual) and lowering the actual ambient pressure (pActual) in the drying container (4a) in order to heat the comminuted material (101) in the drying container (4a), wherein the actual ambient temperature (TActual) in the drying container (4a) is set such that the comminuted material (101) is heated to no higher than 200 °C, the actual ambient pressure (pActual) in the drying container (4a) is set such that both the low-boiling solvent (LL) as well as the high-boiling solvent (LH) are separated by being evaporated out of the comminuted material (101) at the set actual ambient temperature (TActual), and the low-boiling solvent (LL) and the high-boiling solvent (LH) are discharged out of the same drying container (4a) during the thermal treatment of the comminuted material (101); and - mechanically preparing the thermally treated comminuted material (101).
A self-balancing mechanism for a centrifuge for the papermaking industry includes: a flange; a torus coupled to the flange; and a set of free bodies disposed within the torus. In response to a slurry being introduced into a perforated cylinder of a rotor of the centrifuge, each free body of the set of free bodies is configured to move within the torus in response to a rotational unbalance of the rotor to which the self-balancing mechanism is coupled caused by introducing the slurry.
B04B 3/00 - Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneously sifting or filtering
D21F 1/74 - Pulp catching, de-watering, or recoveringRe-use of pulp-water using cylinders
50.
COOLING SYSTEM FOR AN ELECTROLYSIS DEVICE FOR PRODUCING HYDROGEN
The invention relates to a cooling system for an electrolysis device for producing hydrogen, wherein the electrolysis device has at least one electrolysis stack (1) and at least one installation component, wherein the cooling system has at least two coolant circuits (2, 2') which are separate from one another, wherein a first coolant circuit (2) is designed only for cooling the electrolysis stack (1) of the electrolysis device, and a second coolant circuit (2') is provided only for cooling the installation component of the electrolysis device, and wherein the temperature of the coolant in the first coolant circuit (2) differs from the temperature of the coolant in the second coolant circuit (2').
An electronic device for monitoring a suction roller includes a bearing module configured to monitor a bearing of the suction roller. The bearing module includes an accelerometer and a temperature circuit that are configured to monitor positioning and temperature, respectively, of the bearing of the suction roller. The bearing module includes an enclosure that has both the accelerometer and the temperature circuit therein. Related methods and systems are also described.
The invention relates to a web stabiliser (1) for a machine for producing a fibre material web and is characterised in that end-face sealing against a covering (3) is provided either by a sealing element (6) or by a further sealing element (8) which can be moved against the covering (3). The invention permits an advantageous and in particular energy-efficient forming of a negative pressure in the application region of the web stabiliser (1).
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for determining and applying a distribution of oxidizing agents in delignification of a pulp bleaching cycle. The method obtains an incoming kappa value of an unbleached pulp slurry and a target kappa value expected for a bleached pulp slurry. A model generates a sequence kappa factor based on these values, and a total equivalent chlorine (TEC) factor from the sequence kappa factor and the incoming kappa value. Scenarios are simulated using the TEC factor, each scenario specifying a unique distribution of dosage targets for oxidizing agents and having a total consumption score for the oxidizing agents that is determined based on the dosage targets for the oxidizing agents. A scenario with the lowest total consumption score is selected, and the model applies the dosage targets of oxidizing agents for the selected scenario during the pulp bleaching cycle.
The invention relates to a calender (100) for calendering flat structures (10), preferably in order to produce electrodes, having a first roller (1) and a second roller (2). The rollers (1, 2) can be moved relative to each other along a first axial direction (A1) of the first roller (1) and/or a second axial direction (A2) of the second roller (2). The first roller (1) has a first profile (P1), and the second roller (2) has a second profile (P2). The calender (100) has a tilting means (7) for tilting the first roller (1) and the second roller (2) about a tilt axis (V), said tilt axis (V) being perpendicular to the first axial direction (A1) and the second axial direction (A2). The invention additionally relates to a method for operating a calender (100).
B30B 3/00 - Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
B30B 3/04 - Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs co-operating with one another, e.g. with co-operating cones
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for determining and applying a distribution of oxidizing agents in delignification of a pulp bleaching cycle. The method obtains an incoming kappa value of an unbleached pulp slurry and a target kappa value expected for a bleached pulp slurry. A model generates a sequence kappa factor based on these values, and a total equivalent chlorine (TEC) factor from the sequence kappa factor and the incoming kappa value. Scenarios are simulated using the TEC factor, each scenario specifying a unique distribution of dosage targets for oxidizing agents and having a total consumption score for the oxidizing agents that is determined based on the dosage targets for the oxidizing agents. A scenario with the lowest total consumption score is selected, and the model applies the dosage targets of oxidizing agents for the selected scenario during the pulp bleaching cycle.
The invention relates to a calender (100) for calendering sheet materials (10), preferably in order to produce electrodes, having a first roller (1) and a second roller (2). The rollers (1, 2) can be moved relative to each other in an axial direction (A), and the calender (100) has first actuation means (7) for bending the first roller (1) by the introduction of torque in a radial direction (R). The invention additionally relates to a method for operating a calender (100).
B21B 37/42 - Control of flatness or profile during rolling of strip, sheets or plates using a combination of roll bending and axial shifting of the rolls
The invention relates to a device (10) for providing air into a combustion furnace (18) which device (10) comprises a casing (11) encapsulating a distributing chamber (20) and a feeding duct (21) extending outwards from the distributing chamber (20); an inlet (12) for receiving air into the distributing chamber (20) from an air source; an outlet (13) at the end of the feeding duct (21) for exiting air out from inside the casing (11); an inlet valve (19) arranged at the inlet (12) and being adjustable to control air entering through the inlet (12) into the distributing chamber (20); a damper (14) being arranged inside the feeding duct (21) and being movable from a restricted position to an open position or therebetween to adjust the flow of air exiting through the outlet (13). In the device (10) according to the invention the damper (14) comprises a first restricting element (15a) and a second restricting element (15b) arranged one on the other at a distance from each other inside the feeding duct (21) such that at least portion of the air coming from the distribution chamber (20) to the feeding duct (21) can flow to the outlet (13) through a gap (GP) between the first restricting element (15a) and the second restricting element (15b). The invention relates also to a combustion furnace (18) and a method for providing air into a combustion furnace (18).
The invention relates to a method for preparing batteries (100) to be recycled, having at least the following steps:
comminuting a provided battery (100) to be recycled in order to obtain comminuted material (101), the provided battery (100) to be recycled and/or the comminuted material (101) obtained therefrom being thermally pre-treated in a comminuting chamber (3a) by being heated up to a comminuting temperature (TZ), which is lower than 100° C.;
transferring the comminuted material (101) into a drying container (4a) and thermally treating the comminuted material (101) by raising an actual ambient temperature (Tlst) and lowering an actual ambient pressure (plst) in the drying container (4a), in order to heat the comminuted material (101) in the drying container (4a), wherein the actual ambient temperature (Tlst) in the drying container (4a) is set such that the comminuted material (101) is heated to no higher than 200° C., and the actual ambient pressure (plst) in the drying container (4a) is set such that both the low-boiling solvent (LL) as well as the high-boiling solvent (LH) are separated by being evaporated out of the comminuted material (101) at the set actual ambient temperature (Tlst), where the low-boiling solvents (LL) and the high-boiling solvents (LH) are discharged out of the same drying container (4a) during the thermal treatment of the comminuted material (101); and
mechanically processing the des thermally treated comminuted material (101).
A method for controlling a gas flow separated from a suspension of medium consistency pulp. The pulp is treated in a pulp treatment apparatus including a first pump and a second pump, wherein the second pump is a degassing centrifugal pump provided with a degassing system which includes a degassing conduit in which a degassing valve is arranged for regulating a pressure difference between an inlet of the second pump and the degassing conduit. The degassing system also includes a pressurized degassing vessel working under overpressure and having an inlet and an outlet, wherein the outlet of the vessel is connected to a pressure control valve for maintaining a desired overpressure in the vessel.
F04D 7/04 - Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogeneous
The invention relates to a cylinder (1) for drying a fibrous web, comprising a cylinder shell (2), wherein an electric heating device (3) for heating the cylinder (1) is arranged inside the cylinder (1). It is characterised in that the electric heating device (3) is arranged on the inside of the cylinder shell (2), forming a conductive thermal connection, wherein the electric heating device (3) comprises at least one electric heating element (4) with carbon nanotubes. This provides a cylinder with a heating device with improved efficiency.
A process, and a system configured to perform the process, is provided wherein lignin is oxidized into methanol by feeding into a black liquor containing feedstock an oxidative agent in a reactor. The process includes: providing a feedstock comprising black liquor; preconditioning the feedstock in a preconditioning reactor; transferring the feedstock or the preconditioned feedstock to a second reactor; and feeding into the second reactor a first oxidative agent to produce a reaction mixture to oxidize methoxyl groups of lignin present in the black liquor into methanol.
C07C 29/50 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by oxidation reactions with formation of hydroxy groups with molecular oxygen only
The invention relates to a machine and a method for producing a fibrous web, wherein the fibrous web (1) is guided between a transfer area (3) and a drying area (6) over a dewatering roll (5). The invention is characterized in that a press nip (10) is formed in a wrap-around area (7) of the dewatering roll (5), and the press nip (10) is located in a discharge area of a suction zone (11) of the dewatering roll (5) or downstream of the suction zone (11), wherein, upstream of the press nip (10), a drying medium is suctioned through the fibrous web (1) and into the suction zone (11). The invention allows for an energy-efficient production of a high-quality fibrous web (1).
The invention relates to a method for treating lime mud in a lime kiln (2) wherein the lime kiln (2) comprises a rotary kiln shell (10) having an interior space (8) between a first end wall (6) and a second end wall (11), and wherein the first 5 end wall (6) of the lime kiln (2) comprises a moving wall-part (6a) that rotates with the rotary kiln cell (10) and a stationary wall-part (6b), and wherein the method comprises method steps of: -feeding lime mud into the interior space (8) of the rotary 10 kiln shell (10) or in close proximity to the rotary kiln shell (10) by a feeding device (1) at the first end wall (7), -entraining the lime mud in flue gas flowing out from the interior space (8) of the rotary kiln shell (10) to a separating device (4) through a flue gas riser duct (3), 15 -pretreating the lime mud while the lime mud is entrained with the flue gas stream, -separating the pretreated lime mud from the flue gas stream by the separating device (4), -returning the separated lime mud back to the feeding 20 device (1) and to the lime kiln (2), and -calcining the separated lime mud in the lime kiln (2). In the method according to the invention the lime mud particles being sticked and/or deposited on the inner surfaces of the lime kiln (2) are detached at least partly 25 from inner surfaces of at least the stationary wall-part (6b) of the first end wall (6) by a cleaning device (13) provided at the lime kiln feed end (20). The invention relates also to a lime kiln feed head (20) and a lime kiln (2).
The invention relates to a method for removing lime mud depositions (30) from internal surfaces (10a) of a rotary lime kiln (10), wherein the lime mud is lime mud formed in pulp production and in which rotary lime kiln (10) the lime mud is heated in the interior space of the rotary lime kiln (10) with an internal heater to calcinate the lime mud, and wherein the method comprises method steps of -providing an external temperature control arrangement (20) being capable to change the internal surface temperature of the rotary lime kiln (10) at least in one location from outside the interior space (12) of the rotary lime kiln (10), -changing the internal surface temperature of the rotary lime kiln (10) at least in one location by the external temperature control arrangement (20) to remove lime mud depositions (30) from the internal surface (10a) at the at least one location, -increasing the temperature at the internal surface at least to 800°C, preferably at least to 900 °C. The invention relates also to an apparatus for removing lime mud depositions (30) from internal surfaces (10a) of a rotary lime kiln (10).
A sealing arrangement of a protruding bar (1) arranged to enter into a combustion chamber (3) of the boiler through an opening (5) of a wall (4) of the combustion chamber (3). The protruding bar (1) is attached to a handling device (10). The sealing arrangement has a gasket (2) for sealing the opening (5). The gasket (2) is slidably arranged around the protruding bar (1) for sealing a gap between the protruding bar (1) and the wall (4) of the combustion chamber so that sealing arrangement is configured to keep the gasket (2) attached to the wall (4) of the combustion chamber (3) while the protruding bar (1) is fully inserted into the combustion chamber (3) and at least a part of time when the protruding bar (1) enters into the combustion chamber (3) and at least a part of time when the protruding bar (1) retracts from the combustion chamber (3).
A process, and a system configured to perform the process, is provided which oxidizes lignin present in filtrates into methanol by feeding into a lignin-containing feedstock an oxidative agent in a reactor. The process includes: providing, in a reactor, a feedstock comprising lignin in an aqueous medium; feeding into the feedstock at least one oxidative agent to produce a reaction mixture in which methoxyl groups of the lignin are oxidized into methanol; adjusting the pH of the reaction mixture to a value in a range of 5 to 14; and operating the reactor at a temperature in a range of 50° C. to 100° C.
C07C 29/50 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by oxidation reactions with formation of hydroxy groups with molecular oxygen only
A method for fabricating a shearing tool for shearing high strength steel, the method includes: forming the shearing tool including a knife edge having a first surface, a second surface, and a cutting surface disposed between the first surface and the second surface; finishing the first surface and the second surface to have an isotropic surface finish substantially devoid of surface finish marks; cold forming a specified radius on the cutting surface; and deep rolling a portion of the first surface adjacent to the cutting surface and a portion of the second surface adjacent to the cutting surface to create a specified compressive stress in a volume of the knife edge corresponding to the portion of the first surface and the portion of the second surface to a specified depth within the knife edge.
B23P 15/40 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools shearing tools
B24B 3/36 - Sharpening cutting edges, e.g. of toolsAccessories therefor, e.g. for holding the tools of cutting blades
C21D 7/08 - Modifying the physical properties of iron or steel by deformation by cold working of the surface by burnishing or the like
72.
ARRANGEMENT FOR INSTALLATION OF MONITORING SENSORS OF A TREATMENT VESSEL FOR LIGNOCELLULOSIC MATERIAL
An arrangement for installations of monitoring sensors of a vessel for treatment of lignocellulosic material, which vessel (1) has a central pipe (2) including at least one concentric pipe (3), mounted coaxially within the vessel (1). At least one sensor channel (4) is arranged along the outermost wall of the concentric pipe (3) of the central pipe (2) and that the at least one sensor channel (4) is connected to a cable conduit (5), which cable conduit (5) connects the exterior of the vessel (1) to the at least one sensor channel (4)) and the sensor channel (4) is several meters long and has plurality of holders (13) for sensors (11) and/or is configured to contain plurality of thermal sensors (11) with their cables (8).
A soap separation monitoring arrangement, comprising imaging means configured to image an area of interest of a surface of a liquor storage tank; illuminating means configured to illuminate the area of interest; at least one support means supporting at an end thereof an instrumentation case and configured to be releasably installed at an installation duct in a cover of a manhole on top of the liquor storage tank so that the end supporting the instrumentation case is inside the tank, wherein the imaging means and the illuminating means are positioned inside the instrumentation case of the at least one support means; wherein the instrumentation case comprises an optics element configured to provide the imaging means and illuminating means with a field of view to the area of interest; the vertical position and angle with respect to the support means of the instrumentation case is adjustable for adjusting the field of view of the imaging means; and wherein the imaging means are configured to image at least two image frames of the area of interest, wherein the area of interest comprises at least a part of the liquor storage tank and at least a part of a soap overflow channel. Also a method and a control system.
A process wherein lignin is oxidized into methanol in an air stripping column. The process includes: feeding a feedstock into the air stripping column, wherein the feedstock includes lignin such as a filtrate from a pulp mill; and feeding air into the air stripping column to oxidize methoxyl groups of the lignin into methanol.
C07C 29/48 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by oxidation reactions with formation of hydroxy groups
C07C 29/78 - SeparationPurificationStabilisationUse of additives by physical treatment by condensation or crystallisation
A startup burner assembly for a recovery boiler, the startup burner assembly includes a housing having a burner end and a second end distal to the burner end; a main fuel conduit disposed within the housing; and at least one high-pressure air conduit disposed within the burner end of the housing. The high-pressure air conduit includes at least one angled air injection nozzle configured to direct high-pressure air exiting the burner end of the startup burner assembly in a rotational direction.
D21C 11/10 - Concentrating spent liquor by evaporation
F23D 14/24 - Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion
76.
AN APPARATUS FOR OPERATING A LIQUOR GUN OF A RECOVERY BOILER, A RECOVERY BOILER AND A METHOD OF OPERATING THE APPARATUS
F23C 5/06 - Provision for adjustment of burner position during operation
F23D 11/02 - Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the combustion space being a chamber substantially at atmospheric pressure
F23G 7/04 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of specific waste or low grade fuels, e.g. chemicals of waste liquors, e.g. sulfite liquors
77.
METHOD AND SYSTEM FOR PRODUCING SPINNABLE BAST FIBRES OR A BAST THREAD
The invention relates to a method for producing spinnable bast fibres and a method for producing a bast thread (10), wherein, in a first step, bast fibres (1) are provided as bast fibre bundles (2), and, in a second step, the bast fibre bundles (2) are processed in a batch washer system (4). The invention also relates to a system.
The invention relates to an apparatus for operating a liquor gun (20) of a recovery boiler (100), wherein the apparatus comprises liquor burner rack (10) comprising -a base (11) -a frame (12) attached movably on a base (11 ) being provided outside a recovery boiler (100) such that the frame (12) is movable back and forth along the base (11) in a direction towards a liquor gun opening (101) at a wall (102) of the recovery boiler (100), -a holder (13) for holding a liquor gun (20) within the frame (12), and attached upwards and downwards movable at the frame (12) and rotatable in respect of a tilting axis (TX) being perpendicular to the directions of the back-and-forth movements of the frame (12) and the holder (13), -an entering element (14) being arranged to move the frame (12) back and forth along the base (11) such that at least part of the liquor gun (20) hold by the holder (13) is movable into and out from the recovery boiler (100) through the liquor gun opening (101), -a lifting element (15) arranged to lift and lower the holder (13) in respect of the frame (12), and -a tilting element (16) arranged to tilt the holder (13) in respect of the tilting axis (TX), and wherein the apparatus further comprises a hatch (103) arranged at the recovery boiler (100) liquor gun opening (101) and arranged to be closed and opened by a hatch actuator (104). In the apparatus according to the invention the hatch actuator (104) is arranged to open and close the hatch (103) automatically according to movements of the frame (12) of the liquor gun rack (10) such that when the frame (12) is moved towards the liquor gun opening (101) the hatch (102) is opened and when the frame (12) is moved away from the liquor gun opening (101 ) the hatch (103) is closed. The invention relates also to a recovery boiler (100) and a method of operating the apparatus.
F23C 5/06 - Provision for adjustment of burner position during operation
F23D 11/02 - Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the combustion space being a chamber substantially at atmospheric pressure
F23G 7/04 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of specific waste or low grade fuels, e.g. chemicals of waste liquors, e.g. sulfite liquors
79.
INSTALLATION AND METHOD FOR PRODUCING A FIBERBOARD
The invention relates to a method for producing a fiberboard, in which method fibers and vapor form a first mixture which is supplied to a dryer (4) via a blow line (3). The invention is characterized in that, downstream of a refiner (2) and upstream of the entry into the dryer (4), further fibers are fed (5) into the blow line (3) according to a jet-pump principle. The invention also relates to an installation for producing a fiberboard and allows for an advantageous thorough mixing of the fibers and the further fibers.
The invention relates to a method for controlling the addition of a flocculant to a sludge, wherein the sludge is dewatered and images are made of the dewatered sludge and/or the dewatered liquid with a camera system. It is characterised in that the images are evaluated with a computer-implemented computational model that has previously been trained with a training data set, whereby the computational model divides the images into sub-images, classifies them and thus assesses the dewatering of the sludge. Optimal dewatering is achieved with improved ecological and economic efficiency.
G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
81.
ELECTROLYSIS CELL, ELECTROLYSIS BLOCK COMPRISING A PLURALITY OF CORRESPONDING ELECTROLYSIS CELLS, AND ELECTROLYSIS DEVICE COMPRISING A PLURALITY OF ELECTROLYSIS CELLS
The invention relates to an electrolysis cell (1) for alkaline hydrogen electrolysis, comprising an electric anode (2), an electric cathode (3), a separation layer (4) which is substantially permeable to ions, is electrically insulating, is preferably in the form of a membrane or a diaphragm and is placed between the anode (2) and the cathode (3), and two electrically conductive half-shells (5, 5') which are electrically insulatingly connected to one another at their edges, wherein: the anode (2) is electrically conductingly connected to the first half-shell (5), and the cathode (3) is electrically conductingly connected to the second half-shell (5'); the anode (2), the cathode (3) and the separation layer (4) are placed between the two half-shells (5, 5') such that an anode chamber (6) and a cathode chamber (7) are formed; each of the half-shells comprises at least one inflow pipe (8, 8') and at least one outflow pipe (9, 9') for a medium; and each of the half-shells (5, 5') comprises a metal support frame (10, 10') for absorbing compressive forces, and a substantially flat outer skin (11, 11'), the support frame (10, 10') and outer skin (11, 11') being integrally bonded together, preferably welded together.
The invention relates to a machine for producing a fibrous web (1), comprising a Yankee cylinder (2) and a clothing run (4) with a press roll (5), a piecing means (6) and internal guide means (7), and is characterised in that at least one internal cantilever (8) is arranged within the clothing run (4), and the press roll (5) and all the internal guide means (7) are connected to the internal cantilever (8), wherein the piecing means (6) is connected to the internal cantilever (8) and to the press roll (5). The invention also relates to a method and allows efficient changing of the clothing (3).
The invention relates to a method of controlling a maintenance operation apparatus (10) of a recovery boiler (11) to carry out maintenance operation for an at least one maintenance object (S1-S14) at a recovery boiler (11) wherein the maintenance operation apparatus (10) comprises a maintenance tool (13) and a tool moving device (R1-R5) for moving the maintenance tool (13) to accomplish the maintenance operation, and wherein the method comprises method steps of a) defining a position of a fixed world coordinate system (20) at the recovery boiler (11), b) defining a position of an initial base coordinate system (21) of the at least one maintenance object (12) that is at a chosen point of the at least one maintenance object (S1-S14) determined in the fixed world coordinate system (20) in an initial temperature of the recovery boiler (11), c) defining a position of a corrected base coordinate system (22) of the at least one maintenance object (S1-S14) in the fixed world coordinate system (20) that is at the position of the chosen point in the fixed world coordinate system (20) in a transited temperature of the recovery boiler, (11), d) controlling the tool moving device (R1-R5) to carry out the maintenance operation of the at least one maintenance object (S1-S14) in the corrected base coordinate system (22). The invention relates also to a maintenance operation apparatus (10).
F16J 15/3284 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structureSelection of materials
F16J 15/3296 - Arrangements for monitoring the condition or operation of elastic sealingsArrangements for control of elastic sealings, e.g. of their geometry or stiffness
G01M 3/28 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables, or tubesInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipe joints or sealsInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for valves
A method for additive machining of a refiner plate segment having a feature pattern includes: fabricating the refiner plate segment with a partial feature pattern from a first material: performing optical scanning of the refiner plate segment to identify positions of features in the partial feature pattern: automatically generating first code for performing three-dimensional (3D) printing of a second material at first specified locations in the partial feature pattern from data obtained from the optical scanning; and performing 3D printing of the second material at the specified locations.
The invention relates to a method for producing a fibrous web (3), wherein a first fibre layer (1) of long fibres is provided, wherein a second fibre layer (2) of short fibres is provided, wherein the first fibre layer (1) and the second fibre layer (2) are connected to one another, wherein after connection of the first and the second fibre layer (1, 2), exclusion regions (5) are cut away from the first and the second fibre layer (1, 2), wherein the long fibres of the cut-away exclusion layer (5) are first shortened dry, and therefore they correspond approximately to the length distribution of the short fibres, wherein the dry-comminuted exclusion regions are then dispersed in a pulper (7) and the fibres of the exclusion regions (5) are separated here, wherein the comminuted and dispersed exclusion regions (5) are used as recycling material to produce the fibrous web (3) or a further fibrous web (4) by wet-laying the fibres of the comminuted and dispersed exclusion regions (5). The invention also relates to a device for carrying out the method.
D21B 1/08 - Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods the raw material being waste paperFibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods the raw material being rags
D21B 1/32 - Defibrating by other means of waste paper
D21F 11/04 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines of the Fourdrinier type paper or board consisting of two or more layers
A separator (1) of a boiler drum for separating steam and water, which separator (1) has a separating chamber (5) having a fluid inlet (2) at the bottom of the separating chamber (5) and a steam outlet (3) at the top of the separating chamber (5) and spiral vanes (9) are attached to the wall (6) of the separating chamber (5) between the fluid inlet (2) and the steam outlet (3) for accomplishing circular motion of the incoming fluids and wherein a circular water outlet (4) surrounds the steam outlet (3). Top end (8) of the wall (6) of the separating chamber (5) within the water outlet (4) has a rounded top contour for ensuring smooth flow and keeping a water trap (13) filled up at the top art of the water outlet (4) and is inclined inwards. The inclination at the top end (8) of the wall (6) is concave.
A refiner plate includes at least one refining zone including a first plurality of refining bars and a plurality of grooves. At least one groove of the plurality of grooves has a first width between adjacent refining bars of the first plurality of refining bars at an inlet of the at least one refining zone narrower than a second width along a remaining portion of the at least one groove. At least one of the adjacent refining bars of the first plurality of refining bars has a widened portion in a circumferential direction of the refiner plate at an inlet portion of the at least one refining zone.
A refiner plate includes at least one refining zone including a first plurality of refining bars and a plurality of grooves. At least one groove of the plurality of grooves has a first width between adjacent refining bars of the first plurality of refining bars at an inlet of the at least one refining zone narrower than a second width along a remaining portion of the at least one groove. At least one of the adjacent refining bars of the first plurality of refining bars has a widened portion in a circumferential direction of the refiner plate at an inlet portion of the at least one refining zone.
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for optimizing material processing. In one aspect, a method includes collecting, from a set of sensors, a set of current manufacturing conditions. Based on the set of current manufacturing conditions collected from the sensors, a set of current qualities of a material currently being processed by manufacturing equipment is determined. A baseline production measure for processing the material according to the set of current qualities is obtained. A candidate set of manufacturing conditions that provide an improved production measure relative to the baseline production measure is determined. A set of candidate qualities for the material produced under the candidate set of manufacturing conditions is determined. A visualization that presents both of the set of candidate qualities of the material and the set of current qualities of the material currently being processed is generated.
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
94.
HYBRID GAS/ELECTRIC AIR HEATING SYSTEM FOR MATERIAL DRYING SYSTEMS
An air heating system includes a common air supply header, a common air return header, and a hybrid air heating system. The hybrid air heating system includes a first air heating system or a first set air heating components that operates using a first type of fuel and a second air heating system or a second set of air heating components that operates using a second type of fuel. The first type of fuel may be electricity and the second type of fuel may be a gas. The system may operate using only the first air heating system or components, only the second air heating system or components, or both the first and second air heating systems or components. Alternatively, a hybrid air heating system may be connected directly to an end of a dryer without the use of common headers.
The invention relates to a dewatering element (1) for dewatering a fibrous web and comprises a wear body (3) having a sliding surface (4) and is characterized in that the wear body (3) is in the form of a ceramically reinforced polymer substrate. The dewatering element can be advantageously produced and recycled.
A seal strip and wear monitoring system includes: a seal strip having an upper surface; and a wear monitoring system. The wear monitoring system includes: a sensing portion comprising a plurality of electrical traces, each of the electrical traces including an uppermost portion that is generally parallel with and is positioned at a depth from the upper surface of the seal strip, wherein the depth of each trace uppermost portion differs from the depth of the other electrical traces; and a signal processing portion electrically connected with the electrical traces, the signal processing portion including circuitry configured to detect electrical signals from the traces and to determine when the uppermost portion of a trace has been damaged.
A bearing for guiding reciprocating vertical movement of a pressure diffuser screen assembly may include: a bearing cylinder; a screen extension having an upper portion configured to couple to a lower portion of the pressure diffuser screen assembly, the screen extension having a screen extension outer diameter less than a pressure diffuser screen assembly outer diameter and less than an inner diameter of the bearing cylinder; and a bearing assembly configured to couple to the screen extension at a lower portion of the screen extension, the bearing assembly having a bearing assembly inner diameter corresponding to the screen extension outer diameter and a bearing assembly outer diameter corresponding to the inner diameter of the bearing cylinder. An inner diameter of the bearing cylinder may provide a bearing surface for the bearing assembly.
The invention relates to a screw press for separating filtrate from a feed material. It is characterised in that a sensor arrangement comprising a sensor for measuring the filtrate content is arranged in the discharge area, the feed material flowing towards and/or around the sensor. This allows simple, prompt, and accurate measurement of the filtrate content.
B30B 9/16 - Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing operating with two or more screws or worms
B30B 9/12 - Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
An accept tank arrangement for mixing of pulped fiber suspension including sidewalls (3,4) including opposite arched ends (2) and an elongated section (1) between the arched ends (2). The accept tank has mixers (10) each located within one of the arched ends (2). The mixers (10) have axles (11) on which are mounted propellers (12). The mixers (10) are aligned horizontally and each axle points to a respective point on the elongated section (1) of the sidewall (3) which away from an end of the elongate section by at least 25% of the length of the elongated section (1). The propellers (12) are symmetrically positioned with respect to a center-point of the accept tank. Within the center of the elongated section is an elongated centerpiece (6) having rounded ends. The accept tank has a substantially flat bottom at least at the elongated section (1) of the accept tank.
B01F 27/71 - Mixers with rotary stirring devices in fixed receptaclesKneaders with stirrers rotating about a horizontal or inclined axis with propellers
The invention relates to a method for obtaining or recovering acid from metal-containing solutions (13) of the acid through treatment by pyrohydrolysis of the solution and subsequent absorption and/or condensation of the gaseous acid formed in the process. The metal-containing solution (13) is fed to a heated reactor chamber (1) in which the metal-containing solution (13) is evaporated and in which the solution is split by pyrolysis into acids and metal oxides (12). According to the invention, for heating, a heat transfer medium (11), which partially or completely consists of water vapour, is fed to the reactor chamber (1), by means of which the metal-containing solution (13) is heated to the temperature required for pyrohydrolysis.
