The invention relates to a grinding roller (30) having: a roller main body (36), wherein the roller main body (36) has, in the region of the roller ends, a multiplicity of wear protection elements (32) which are arranged in a circumferential direction, wherein each of the wear protection elements is connected to the roller main body (36) by way of a connecting element (38), wherein the connecting element (38) is designed so as to connect the wear protection element cohesively to the roller
main body. The invention also relates to a method for processing a grinding roller, wherein the method comprises: providing at least one wear protection element (32); providing a connecting element (38) for the connection of the at least one wear protection element (32) to the roller main body (36), and heating the connecting element (38).
The present invention relates to a crusher having a crushing member which is driven in an operatively connected manner by way of an eccentric element, such that material for crushing that can be introduced into the crusher can be comminuted by way of a crushing movement that can be generated by way of the eccentric element. According to the invention, at least one eccentric bushing is provided which is connected by way of an active surface to the eccentric element by way of frictional engagement, and wherein the eccentric bushing has a pressure medium chamber which is formed into the eccentric bushing such that, when the pressure medium chamber is pressurized, the frictional engagement between the eccentric element and the eccentric bushing can be varied.
The present invention relates to a conveying system (1) for open-cast mining that is designed to be arranged above an inclined embankment (100) of an open-cast crater and by means of which raw materials can be conveyed from a lower height level (101) on a working floor of the open-cast mine to an upper height level (102) on the ground adjoining the open-cast pit, wherein at least one conveying vessel (10) is provided which can be loaded with raw materials at the lower height level (101) and from which the raw materials can be unloaded at the upper height level (102), and wherein at least one carrier cable (11) for load take-up and guidance and a pulling cable (12) for moving the conveying vessel (10) are provided, and wherein a supporting element (13) to which the carrier cable (11) is fastened and on which the pulling cable (12) is guided is set up at least at the upper height level (102). In order to obtain a simplified design of the conveying system, there is provision according to the invention that a truck-feeding station (14) onto which the conveying vessel (10) can be guided is set up at the lower height level (101), with the result that the raw materials can be filled from a truck (15), which can be moved onto the truck-feeding station (14), into the conveying vessel (10) by means of a pouring operation, and that a raw material-receiving station (16) above which the conveying vessel (10) can be guided is set up at the upper height level (102), with the result that the raw materials can be unloaded from the conveying vessel (10) into a raw material-receiving means (17), with the result that the conveying system (1) is designed to be incorporated in a truck transport operation for the raw materials.
B65G 65/02 - Loading or unloading machines comprising essentially a conveyor for moving the loads associated with a device for picking-up the loads
B66B 9/06 - Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces
B66C 21/00 - Cable cranes, i.e. comprising hoisting devices running on aerial cable-ways
E21F 13/04 - Transport specially adapted to underground conditions in gravity inclinesTransport specially adapted to underground conditions in staple or inclined shafts
E21F 13/06 - Transport specially adapted to underground conditions at or adjacent to the working face
The invention relates to a wear-resistant element (16c) for partial insertion into a recess on a surface of a wear area of a comminuting device, the wear-resistant element (16c) comprising a fastening section (24) which can be connected to the recess on the surface of the wear area and has a wear portion (22) that protrudes at least in part from the surface of the wear area. According to the invention, the fastening section (24) comprises a material that has a lower wear resistance than the material of the wear portion (22), the wear portion (22) extends beyond the fastening section (24) in the vertical direction of the wear-resistant element (16c), and the fastening section (24) is in the form of a sleeve.
The present invention relates to a crushing tool for attachment to a crusher roller of a roll crusher, cornprising a main body and at least one wear-protection element fastened to the main body, wherein the wear-protection element is formed from a hard metal, wherein the main body is formed from a metal matrix composite material which has a wear-protection insert of a hard metal. A method for producing a crushing tool for attachment to a crusher roller of a roll crusher comprising positioning a wear-protection insert of a hard metal in a casting mold for casting a main body of the crushing tool; casting the main body, so that the wear- protection insert is enclosed at least partially by the casting material of the main body and fitting a wear-protection element of a hard metal on the cast main body.
Disclosed is a screen segment of a screening device for separating or classifying applied material, especially mineral particulate materials such as oil sand, into at least two grain fractions, wherein the screen segment comprises a base plate essentially in the form of a screen and having a multitude of screen passages, wherein at least one antiwear unit has been mounted on the base plate, wherein the antiwear unit has been formed from a metal matrix composite material having an antiwear insert made of a cemented carbide and/or of ceramic. Also disclosed is a method of producing such a screen segment of a screening device for separating or classifying applied material.
The present invention relates to a screen segment (10) of a screening device for separating or classifying applied material, especially mineral particulate materials such as oil sand, into at least two grain fractions, where the screen segment (10) comprises a base plate (12) essentially in the form of a screen and a multitude of screen passages (14), wherein there is at least one antiwear element (16) disposed on the base plate (12), wherein the at least one antiwear element (16) at least partly adjoins the surface of the base plate (12) and forms the inner surface of a screen passage (14) and wherein the antiwear element (16) is formed from a cemented carbide having a cobalt content (Co) of 5-30%, preferably 10-20%, especially 15%.
Disclosed is a screening system for screening material to be screened, in particular for screening mineral rock, the system having a screen box, which comprises two outer side walls, wherein at least two vibration systems are arranged on each of the two side walls to excite vibration and wherein the two side walls each have at least two vibration nodes in accordance with a bending mode, at least two crossmembers, which connect the two side walls to one another, at least one screen deck, which is supported on the at least two crossmembers, wherein the two vibration systems on each of the side walls are arranged in such a way that each vibration system is arranged in the region of a vibration node of the respective side wall. The invention also relates to a method for screening material to be screened, in particular for screening mineral rock, by means of a screening system of the aforementioned type.
B06B 1/16 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
B07B 1/42 - Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
9.
METHOD AND DEVICE FOR CONTROLLING THE MOVEMENT OF A MOBILE CHASSIS ASSEMBLY, IN PARTICULAR OF A MOBILE CONVEYOR BRIDGE SYSTEM PROVIDED WITH CRAWLER CHASSIS, VIA MULTIPLE INDIVIDUALLY SPEED-CONTROLLABLE DRIVE UNITS
A method is provided for activating and controlling a plurality of chassis/movement systems of at least one mobile crawler system which are mechanically decoupled from one another and are respectively independently pivotable independently about a vertical axis and can be independently oriented and driven. Each chassis/movement system is individually controllable. The chassis/movement systems are controlled in dependence on one another in such a way that at least two of the following individual movement characteristics can be set for specifying the absolute movement of the entire mobile crawler system individually for each chassis/movement system: path of movement, momentary orientation, speed, at least the movement characteristic 'speed' being included. This makes it possible for even very large, bulky items of equipment to be displaced in a way that can be freely individualized. A corresponding crawler system and a control device and a computer program product are also disclosed.
B62D 7/15 - Steering linkageStub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering characterised by means varying the ratio between the steering angles of the steered wheels
B62D 11/20 - Endless-track steering having pivoted bogie carrying track
B65G 41/00 - Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames
B65G 65/28 - Piling or unpiling loose materials in bulk, e.g. coal, manure, timber, not otherwise provided for
B66C 23/36 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes specially adapted for use in particular locations or for particular purposes mounted on road or rail vehiclesManually-movable jib cranes for use in workshopsFloating cranes
10.
METHOD AND APPARATUS FOR THE AUTOMATABLE OPERATION OF A CONVEYOR BELT SYSTEM USED IN PARTICULAR IN SURFACE MINING
The present invention relates to a method and an apparatus for operating a conveyor system, having at least two excavation and/or conveyor devices, for the removal of loose material excavated at an excavation site, wherein transfer points for the transfer of conveyed material are respectively arranged between the at least two excavation and/or conveyor devices, wherein in particular provision is made for spatial positions and/or orientations of at least two excavation and/or conveyor devices involved at a respective transfer point to be determined by sensors, and for the at least two excavation and/or conveyor devices involved at the respective transfer point to be actuated on the basis of the spatial positions and/or orientations determined, in such a way that the positions and/or orientations of the at least two excavation and/or conveyor devices in the region of the respective transfer point are adjusted.
B65G 41/00 - Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames
B65G 43/00 - Control devices, e.g. for safety, warning or fault-correcting
B65G 65/28 - Piling or unpiling loose materials in bulk, e.g. coal, manure, timber, not otherwise provided for
E21C 47/04 - Conveyor bridges used in co-operation with the winning apparatus
G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using radio waves
11.
ROLLER MILL HAVING RIM ELEMENTS AND METHOD FOR SETTING AN END-FACE GAP OF THE ROLLER MILL
The present invention relates to a milling roll of a roll mill having a roll main body and an edge element which is attached to an end region of a roll end of the milling roll and extends in the radial direction beyond the surface of the roll main body, the edge element comprising a base flange and a spacer element which is attached thereto, a plurality of wear protection elements being attached to the spacer element. The invention also relates to a roll mill having a first milling roll and a second milling roll which are arranged opposite one another and can be driven in opposite directions, at least one milling roll being configured, a milling gap being configured between the milling rolls, and the edge element being configured in such a way that it extends over the milling gap and covers the opposite milling roll on the end side at least partially.
The present invention relates to a roller mill for comminuting granular material, comprising a first grinding roller and a second grinding roller which are disposed so as to be opposite and drivable in a counter-rotating manner, wherein a milling gap is configured between the grinding rollers and wherein at least one of the grinding rollers on an end region of the grinding roller (comprises a peripheral element which is configured in such a manner that said peripheral element extends across the milling gap and at least partially covers the opposite grinding roller on the end side, wherein a scraping element for at least partially removing material is disposed on the end region of the grinding roller that is provided with a peripheral element, wherein the roller mill has a measuring device for determining the layer thickness of ground material on at least one of the grinding rollers and/or for determining the stress of the peripheral element; and a control device which is connected to the measuring device and, as a function of the determined layer thickness and/or stress, is configured for decreasing or increasing the spacing of the scraping element from the grinding roller.
The present invention relates to a roller mill for the comminution of bulk material, having a first grinding roller and a second grinding roller, which are arranged opposite one another and can be driven in opposite directions, wherein a grinding gap is formed between the grinding rollers, and a fixed bearing unit for holding the second grinding roller and a floating bearing unit for holding the first grinding roller, wherein there is attached to the floating bearing unit a plurality of hydraulic actuators for applying a force to the floating bearing unit, and wherein the hydraulic actuators are hydraulically connected to a synchronization device, wherein the synchronization device has a plurality of hydraulic cylinders each
having a piston, and wherein the pistons are connected to one another via a mechanical coupling so that the movements of the pistons are coupled.
The present invention relates to an apparatus for thermal treatment of mineral raw materials, in particular lithium ores, wherein the apparatus comprises a comminution apparatus, a pelletization apparatus and a thermal treatment apparatus, characterized in that the pelletization apparatus is a mechanical fluidized bed reactor.
The invention relates to a grinding roll with a basic roll body as well as a plurality of wear protection elements made from hard metal which form at least a part of the roll surface. The basic roll body has recesses extending in the circumferential direction, a plurality of wear protection elements being disposed one behind the other in the circumferential direction in each recess.
A drive device for a screening body of a screening machine, in particular for mineral materials for crushing, such as oil sand, with a drive motor, a synchronous transmission gear which is operatively connected thereto and has at least two output shafts which rotate in pairs in antiphase at the same rotation speed with respect to one another, wherein the drive motor and the synchronous transmission gear are mounted in a stationary manner, separately from the screening body, at the side alongside the screening body, and do not oscillate therewith, and wherein each output shaft has a single associated horizontal shaft which has unbalance elements, and which is connected to the output shaft by means of a rotationally rigid universally jointed shaft and is arranged with its axis parallel to the adjacent shaft and transversely with respect to the feed direction of the screening body, and wherein the unbalance elements are arranged in the horizontal direction between the side walls of the screening body, the shaft is supported by means of bearing elements on a cross member which is connected to the side walls, the unbalance elements are arranged exclusively directly on the shafts, bearing elements are arranged exclusively on the shafts in the axial direction of the shafts between the unbalance elements, and the bearing elements are supported on a cross member which is connected to the side walls.
B06B 1/16 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
B07B 1/42 - Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
17.
ROLLER PRESS WITH RETRACTABLE GRINDING MATERIAL GUIDE PLATE
The invention relates to a bed roller mill with two rollers (1, 2) rotatably mounted in a machine frame (3) and driven in opposite directions, of which the gap between the rollers, which is covered with the grinding material to be crushed, is delimited from above by a grinding material guide metal sheet on the front sides of said gap during operation of the roller mill. Said metal sheet can be removed from the operating position thereof, wherein a) the grinding material guide metal sheet (5) can be moved upward and away from the front side of the roller gap relative to the operating position thereof such that the rollers (1, 2) can be removed from the machine frame (3) in the horizontal direction; b) during said movement the grinding material guide metal sheet (5) is guided by guide bodies along an arc-shaped guiding device; and c) in the operating position the grinding material guide metal sheet (5) is supported on the outside against the forces exerted by the grinding material by support elements which are rotatably connected to the grinding material guide metal sheet.
The roller mill according to the invention for crushing brittle material for grinding of different grain sizes has two grinding rollers which form between them a grinding gap, and provides a delivery chute for feeding the material for grinding to the grinding gap, wherein there is provided in the delivery chute at least one distributor device which is arranged above a middle region of the grinding gap and extends above the grinding gap transversely to the longitudinal extent of the grinding gap and covers from 5 to 70% of the cross-section of the delivery chute. In the crushing of the brittle material for grinding, the material for grinding is delivered to the delivery chute and is crushed in the grinding gap, wherein the material for grinding is introduced into the delivery chute or is deflected in the delivery chute in such a manner that, based on the longitudinal extent of the grinding gap, coarser material for grinding accumulates in a middle region of the grinding gap than in the edge regions.
The instant invention relates to a steep conveying installation (1) for arranging on a slope (10) of an open-cast mining glory hole, by means of which raw materials (11) can be transported from a lower height level (12), in particular from a mining floor (12) of the open-cast mine, to an upper height level (13), in particular formed by a soil (13), encompassing a line (14) arranged on the slope (10). According to the invention, provision is made for a first conveying basket (15) and for a second conveying basket (16), which conveying baskets (15, 16) can be displaced on the line (14) between the lower height level (12) and the upper height level (13) and are embodied to receive the raw materials (11), wherein the conveying baskets (15, 16) are in contact with one another via at least one common traction means (17).
The present disclosure relates to a drive unit for a crusher for crushing bulk material, having at least one drive motor for driving at least one crusher roller in rotation, furthermore comprising a gearbox with an input shaft for the connection of the drive motor and with an output shaft to which the crusher roller is operatively connected. It is provided according to the invention that the operative connection between the output shaft of the gearbox and the crusher roller has at least one elastic coupling member by means of which torsional shocks between the unit composed of drive motor and the gearbox, as a first rotary inertia unit, and the crusher roller, as a second rotary inertia unit, can be elastically absorbed.
The present invention relates to a steep-angle conveying installation (1) for arrangement on a slope (10) of an open-cast mining pit, by means of which steep-angle conveying installation raw materials (11) can be transported from a low-level loading station (12), in particular from the working level of the open-cast mine, to a high-level unloading station (13), in particular at ground level, having a track (14) which is arranged on the slope (10) and on which a first conveying cage (15) and a second conveying cage (16) are movable between the low-level loading station (12) and the high-level unloading station (13), said conveying cages being designed to receive the raw materials (11), wherein the conveying cages (15, 16) have an emptying flap (17) for the emptying of the raw materials (11) out of the conveying cages (15, 16), for which purpose the emptying flap (17) is arranged on the conveying cages (15, 16) so as to be movable between a closed position and an open position. According to the invention, a thrust carriage (18) is provided which can be moved against the emptying flap (17) from an outer side and by means of which the emptying flap (17) can be moved between the closed position and the open position in a controlled manner.
The invention relates to a roller mill having two roller units which are disposed in a machine frame and which have in each case one grinding roller which is rotatably mounted in two bearing jewels, wherein - the two grinding rollers are disposed so as to be mutually opposite and for mutually counter-rotating driving of the grinding rollers are in each case linked to a drive, - a force-application system for generating a grinding force is provided between the machine frame and at least one roller unit wherein the grinding force is transmitted via the machine frame and the bearing jewels to the grinding rollers, and - the machine frame is composed of a plurality of frame parts, wherein for transmitting the grinding force a releasable and positive locking connection to two mutually compressed connection faces is provided between at least two interconnected frame parts, and/or between at least one frame part and one of the bearing jewels, wherein at least one of the two mutually compressed connection
faces has a coating which generates a micro positive lock.
B02C 4/02 - Crushing or disintegrating by roller mills with two or more rollers
B02C 4/28 - Crushing or disintegrating by roller mills Details
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
A screen segment of a screen device for separating or sorting feedstock, in particular mineral material to be crushed such as tar sand, into at least two grain size fractions, comprises, according to a first aspect, a substantially screen- shaped base plate on which at least one plate-shaped wear-resistant element is arranged.
The present invention relates to a tool for processing abrasive materials, in particular rocks, sand or ores, comprising a main tool body and at least one hard metal plate arranged on the main tool body, wherein a build-up weld is applied to the surface of the hard metal plate and to the main tool body, by which weld the hard metal plate is bonded to the main tool body. The invention also relates to a method for producing or treating a tool for processing abrasive materials, in particular rocks, sand or ores, wherein the tool comprises a main tool body, wherein the method comprises the steps of: arranging at least one hard metal plate on the main tool body, applying a build-up weld to the hard metal plate and the main tool body, such that the at least one hard metal plate is attached to the main tool body.
The present invention relates to a wear-resistant element 16a-m for partial insertion into a recess 32 on the surface of a wear area 12, 14 of a comminuting device 10, wherein the wear-resistant element 16 comprises particles 20 made of a highly wear- resistant material which are embedded in a matrix material 18.
The present invention relates to a crushing tool (10) of a crushing roller (12) of a roller crusher having a main body (14) and a fastening segment (16), which is attached to the front edge of the main body (14), and a wear protection segment (18) attached to the fastening segment (16), wherein the fastening segment (16) is detachably connected to the main body (14).
Disclosed is a crushing roll of a roll crusher having a plurality of crushing plates which form the lateral surface of the crushing roll and a plurality of crushing tools attached to a crushing plate in each case, wherein at least one crushing plate is formed from a metal matrix composite material which has an anti-wear insert made of a hard metal and/or made of ceramic. Also disclosed is a method for producing a crushing roll of a roll crusher, wherein the crushing roll has a plurality of crushing plates which form the lateral surface of the crushing roll and the method comprises the steps: - positioning an anti-wear insert made of a hard metal and/or ceramic in a casting mold for casting a crushing plate of the crushing roll and - casting the crushing plate from a metal matrix material, so that the anti- wear insert is at least partially enclosed by the metal matrix material.
The present invention relates to a method for producing a traveling movement of a mobile rig for open-pit mining having a first crawler chassis unit and having at least a second crawler chassis unit, the crawler chassis units each having a substructure on which two crawlers arranged spaced apart from each other are received, the substructures of the crawler chassis units being arranged rotatably beneath a superstructure. According to the invention, in order to control the mobile rig at least one control unit is provided, with which each crawler of the crawler chassis units is controlled to perform a traveling movement, or to stop, using a separate signal. The invention further relates to a mobile rig for open-pit mining having at least one control unit for implementing the method.
B62D 11/00 - Steering non-deflectable wheelsSteering endless tracks or the like
B62D 11/02 - Steering non-deflectable wheelsSteering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
B62D 11/04 - Steering non-deflectable wheelsSteering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of separate power sources
B62D 11/20 - Endless-track steering having pivoted bogie carrying track
B62D 55/065 - Multi-track vehicles, i.e. more than two tracks
Disclosed is a system for continuously loading utility vehicles with material, having: - at least one multiple chute which can be switched into different switch states in order to load different utility vehicles successively with material, - at least three utility vehicles arranged in at least two rows with at least two utility vehicles in a front row, wherein at least one utility vehicle in the front row is followed, counter to its direction of travel, by the at least one utility vehicle unfilled in the at least one subsequent row, - a drive-through control system, - a presence sensor system, - a material filling level-sensing system and - a computer system for controlling the switch status of the multiple chute on the basis of the data from the presence sensor system and of the material filling level-sensing system. in addition, disclosed is a method for loading the utility vehicles of the system.
The invention relates to a method and apparatus for grinding iron ore or iron ore concentrate, the material being ground in circulation in a material bed roll mill, one fraction of the iron ore or iron ore concentrate ground in the material bed roll mill being recirculated to the material bed roll mill and the other fraction of the iron ore or iron ore concentrate being classified into oversize material and fines, the oversize material being returned to the material bed roll mill.
B02C 4/02 - Crushing or disintegrating by roller mills with two or more rollers
B02C 4/28 - Crushing or disintegrating by roller mills Details
B02C 23/12 - Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
C22B 1/00 - Preliminary treatment of ores or scrap
31.
TRAVEL SUPPORT MECHANISM FOR MOVABLE CONVEYOR BRIDGE
A travel support device for a conveyor bridge 4 having a swivel joint 12, a two-axis tilting joint 10 and a roller table 8. A portion of the tilting joint 10 is mounted to the swivel joint 12 and another portion of the tilting joint 10 is mounted to the roller table 8 such that the tilting joint 10 rotates about a defined longitudinal axis 30 and an axis 32 transverse of the longitudinal axis 30.
The invention relates to a method for reconditioning a used grinding roll of a high-pressure bed grinding mill. In said method, the surface of the rolling body is turned by a certain degree after removing the worn profiled members, whereupon the existing bores can be deepened to a depth that is sufficient for receiving new profiled members or new bores can be created according to a new bore pattern. New profiled members are then inserted into the bores. The inventive method allows a used grinding roll to be reconditioned in a particularly time-saving manner while economizing material.
The invention relates to a milling roller of a high-pressure material bed roller mill, having profile-members which are embedded with a portion of the length thereof in holes of the roller body and, with the remainder of the length thereof, protrude above the surface of the roller body, with, when the milling roller is new, the holes having different depths and the profile-members having different lengths in differently loaded part-regions of the width of the roller body. Such a construction brings about a long service-life for the roller and cost-effective reconditioning after operational wear with a production operation which reduces costs.
The invention relates to a method for reconditioning a used grinding roller of a bed grinding mill having profiled members which are mounted in bores of the roller element by a part of their length, the other part of their length projecting beyond the surface of the roller element. For the reconditioning, the worn surface of the roller element is turned following removal of the worn profiled members and a material layer is applied in a welding process. The material layer is then provided with bores for receiving new profiled members. Such a method enables a particularly cost-effective reconditioning.
The invention relates to a mobile crushing system, comprising a lower unit (3) having at least one moving mechanism (2), and comprising an upper unit (1) including at least a receiving hopper (4), a crusher (5), and a transport device. According to the invention, the upper unit (3) comprises rigid supports (10a, 10b), wherein a hoisting system (11) for raising and lowering the upper unit (3) relative to the lower unit (1) is provided between the upper unit (3) and the lower unit (1). In a travelling mode, the upper unit (3) is supported on the lower unit (1) by means of the hoisting system (11) and is raised relative to a terrain (U). In a crushing mode, the upper unit (3) can be lowered by means of the hoisting system (11) and placed on the supports (10a, 10b) such that said supports absorb, at least in part, both the weight of the upper unit (3) and the dynamic and static forces acting on the upper unit (3).
A belt-conveying installation has at least one carrying structure, a conveying belt and at least one drive apparatus for driving the conveying belt. The drive apparatus includes at least one drive shaft, at least one drive-shaft-bearing arrangement, at least one drive roller and at least one separately-excited drive motor in the form of a frequency-converter-fed alternating-current synchronous motor with a stator and a rotor. The drive shaft and the at least one drive motor are connected to one another without any gearing, and the rotor and drive shaft are arranged coaxially, each drive shaft being guided through at least one rotor. The belt-conveying installation can be operated and used for heavy industry, in particular for the extractive or mining industry.
In the method according to the invention for increasing the calorific value of a material flow containing carbon, preferably a material flow of renewable raw materials, the material flow is brought in direct contact with at least one low-oxygen, inert hot gas flow in a reactor, wherein the hot gas flow is formed at least 50%, preferably at least 80%, by exhaust gas of a process for thermally processing cement raw meal and/or lime and/or an ore, wherein at least part of a preheater exhaust gas for preheating the cement raw meal and/or lime and/or ore is used as the hot gas flow.
The method according to the invention for grinding fragmentary starting material, in particular ores, with a dry grinding system is characterized by the following method steps: - Determining the moisture of starting material for a certain period of time, - Preparing at least one screening stage, the cut point of which is selected depending on the determined moisture in such a manner that the moisture of a screen oversize does not exceed a predetermined moisture limit value when starting material having the determined moisture is fed to the screening stage, - Feeding starting material to the screening stage, - Transferring a screen oversize arising in the screening stage to the dry grinding system, and - Grinding the screen oversize in the dry grinding system.
Disclosed is a crushing tool for mounting on a crushing roll of a roll crusher, having a securing segment connectable to the crushing roll and a wear segment connected to the securing segment, wherein the wear segment has been formed from a chromium steel.
The invention relates to a method for operating an installation comprising at least one assembly with a rotating surface, said surface being subject to an increasing degree of wear during operation of the installation and the wear condition of the rotating surface being determined and evaluated. Depending on the wear condition of the rotating surface, instructions are issued for a modified continued operating mode of the installation, said mode being adapted to the determined wear condition of the surface.
patents