A purifying device for removing impurities from liquid metal present in a vessel includes a baffle including a first surface and a second surface disposed opposite the first surface. A vent channel is formed between the first surface and the second surface, the vent channel having a proximal end and a distal end opposite the proximal end, the vent channel configured to receive a stream of gas at the proximal end and vent at least some of the stream of gas at the distal end. At least one first vent hole is arranged on the first surface and extending into the vent channel, and at least one second vent hole arranged on the second surface and extending into the vent channel. A passage for liquid metal flow is disposed within the baffle, the passage having a proximal surface and a distal surface, where the distal surface is disposed adjacent to the proximal end of the vent channel.
A purifying device for removing impurities from liquid metal present in a vessel includes a baffle including a first surface and a second surface disposed opposite the first surface. A vent channel is formed between the first surface and the second surface, the vent channel having a proximal end and a distal end opposite the proximal end, the vent channel configured to receive a stream of gas at the proximal end and vent at least some of the stream of gas at the distal end. At least one first vent hole is arranged on the first surface and extending into the vent channel, and at least one second vent hole arranged on the second surface and extending into the vent channel. A passage for liquid metal flow is disposed within the baffle, the passage having a proximal surface and a distal surface, where the distal surface is disposed adjacent to the proximal end of the vent channel.
A device and method of reclaiming refractory material from a lining of a refractory includes assembling a first refractory component of the lining with a first refractory product, and assembling a second refractory component of the working lining with a second refractory product different from the first refractory product, the second refractory product including magnetic material dispersed therein. Upon the lining reaching a service life, the lining is demolished to produce a mixture of the first refractory component pieces and the second refractory component pieces. Magnetic separation is performed on the mixture to separate the second refractory component pieces from the first refractory component pieces.
B03C 1/023 - Separation using Lorentz force, i.e. deflection of electrically charged particles in a magnetic field
B03C 1/18 - Magnetic separation acting directly on the substance being separated with material carriers in the form of belts with magnets moving during operation
A refractory material for forming a refractory product includes a refractory component and a taggant having an amorphous or a crystalline solid dispersed within the refractory material. The taggant is configured to be distinguishable from the refractory component after heating of the refractory product between 300 degrees F. and 3500 degrees F. A method of reclaiming refractory material of a refractory lining constructed from different types of refractory products, the refractory lining having been subjected to temperatures in excess of 300 degrees F., includes demolishing the refractory lining to produce a mixture of refractory pieces of different types of refractory products. The mixture of refractory pieces is analyzed to detect the presence of one or more taggants, and the refractory pieces are sorted into groups based on the detected one or more taggants.
C03C 14/00 - Glass compositions containing a non-glass component, e.g. compositions containing fibres, filaments, whiskers, platelets, or the like, dispersed in a glass matrix
A refractory unit for lining a high temperature vessel includes a refractory body formed from a refractory material. The refractory body has an upper main surface, a lower main surface, an inner surface configurable to face a high temperature chamber, an outer surface configurable to face away from the high temperature chamber, a first side surface and a second side surface. An elastic member is attached to the outer surface.
A refractory unit for lining a high temperature vessel includes a refractory body formed from a refractory material. The refractory body has an upper main surface, a lower main surface, an inner surface configurable to face a high temperature chamber, an outer surface configurable to face away from the high temperature chamber, a first side surface and a second side surface. An elastic member is attached to the outer surface.
C04B 35/01 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides
C04B 35/66 - Monolithic refractories or refractory mortars, including those whether or not containing clay
A liquid phenolic resin composition for use as a binder for a refractory article, the phenolic resin composition comprising a phenol formaldehyde resin, wherein the phenolic resin composition has a reduced vaporization percentage of phenolic compounds. The phenolic resin composition is used in refractory compositions comprising at least 50 wt.% of one or more refractory aggregate(s), based on a total weight of the refractory composition. There is also disclosed a refractory article, such as a brick, formed into a shape comprising said refractory composition and heating until the phenolic resin composition is at least 20% cured and having a green strength after curing at 170 °C for 5 hours sufficient for handling the solid without falling apart. The bricks can be used to make inner liners of ladles which can transport and pour molten metals.
A metallurgical vessel structure and method is provided for producing low-impurity Magnesia-Carbon reclaimed aggregate suitable for reuse in the production of high purity Magnesia-Carbon refractory. A metallurgical vessel is assembled with a non-reactive or chemically similar backup lining. The entire height of the working lining wall is Magnesia- Carbon brick suitable for reuse. The working lining is exposed to a metal making high temperature process, and the working lining is sequentially demolished. Due to the assembly of vessel, metallurgical practice, and ease of demolishing the vessel, there is little to no need for sorting, such that the used Magnesia-Carbon brick are easily converted into low impurity Magnesia-Carbon reclaimed aggregate. A refractory composed of low-impurity Magnesia aggregate reclaimed from the method is also contemplated.
B09B 3/40 - Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
C04B 35/01 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides
C04B 35/043 - Refractories from grain sized mixtures
C04B 35/622 - Forming processesProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products
C04B 35/80 - Fibres, filaments, whiskers, platelets, or the like
A metallurgical vessel structure and method is provided for producing low-impurity Magnesia-Carbon reclaimed aggregate suitable for reuse in the production of high purity Magnesia-Carbon refractory. A metallurgical vessel is assembled with a non-reactive or chemically similar backup lining. The entire height of the working lining wall is Magnesia-Carbon brick suitable for reuse. The working lining is exposed to a metal making high temperature process, and the working lining is sequentially demolished. Due to the assembly of vessel, metallurgical practice, and ease of demolishing the vessel, there is little to no need for sorting, such that the used Magnesia-Carbon brick are easily converted into low impurity Magnesia-Carbon reclaimed aggregate. A refractory composed of low-impurity Magnesia aggregate reclaimed from the method is also contemplated.
C04B 35/04 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
C04B 35/622 - Forming processesProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products
An ingot mold for curing fused and melted material is provided. The ingot mold includes a steel box, a foamed carbon layer, and a graphite block layer. The foamed carbon layer is formed inside the steel box. The graphite block layer is formed inside the steel box.
A multi-module system for applying a refractory monolithic onto an object includes a power module and a placement module, separated and distinct from the power module. The power module includes a hydraulic pump and a prime mover drivably coupled to the hydraulic pump. The placement module includes a mixer for receiving a dry refractory material and a liquid, the mixer operative to mix the dry refractory material and liquid to produce a wet monolithic, and a pump coupled to the mixer and configured to move the wet monolithic out of the mixer. A hydraulic conduit is couplable between the hydraulic pump and at least one of the mixer or the pump, whereby the at least one of the mixer or the pump is driven by hydraulic power produced by the hydraulic pump.
An ingot mold for curing fused and melted material is provided. The ingot mold includes a steel box, a foamed carbon layer, and a graphite block layer. The foamed carbon layer is formed inside the steel box. The graphite block layer is formed inside the steel box.
B22C 1/00 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds
B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
HarbisonWalker International Holdings, Inc. (Panama)
Inventor
Duhe, Kim M.
Abstract
A method of densification of refractory material in a gap between a tap hole sleeve of a furnace and a surround block of the furnace, the surround block surrounding the tap hole sleeve, the method comprising, includes positioning a tool in the gap, the tool including a support having opposing surfaces and a sidewall connecting the opposing surfaces, the opposing surfaces having an arcuate shape, a plurality of elongated members extending from one of the opposing surfaces, and a connector arranged on the other of the opposing surfaces. The gap is filled with dry material, and vibration is applied to the tool to densify the dry material.
A method of densification of refractory material in a gap between a tap hole sleeve of a furnace and a surround block of the furnace, the surround block surrounding the tap hole sleeve, the method comprising, includes positioning a tool in the gap, the tool including a support having opposing surfaces and a sidewall connecting the opposing surfaces, the opposing surfaces having an arcuate shape, a plurality of elongated members extending from one of the opposing surfaces, and a connector arranged on the other of the opposing surfaces. The gap is filled with dry material, and vibration is applied to the tool to densify the dry material.
B01J 19/10 - Processes employing the direct application of electric or wave energy, or particle radiationApparatus therefor employing sonic or ultrasonic vibrations
B28B 1/093 - Producing shaped articles from the material by vibrating or jolting by means directly acting on the material, e.g. by cores wholly or partly immersed in the material
C04B 35/66 - Monolithic refractories or refractory mortars, including those whether or not containing clay
C21B 13/12 - Making spongy iron or liquid steel, by direct processes in electric furnaces
C21C 5/52 - Manufacture of steel in electric furnaces
A refractory impact pad includes a bottom wall, a side wall, and a top wall. The bottom wall has a basal surface. The side wall extends from a periphery of the bottom wall. The side wall has an inner surface that at least partially encircles the basal surface of the bottom wall. The inner surface of the side wall has inner surface teeth distributed thereon and protruding inwardly from the inner surface of the side wall. The top wall is joined to the side wall and separated from the bottom wall by the side wall. The top wall extends over the inner surface of the side wall and the inner surface teeth of the side wall. The top wall has a bottom surface facing the bottom wall. The bottom surface of the top wall has bottom surface teeth distributed thereon and protruding toward the bottom wall.
A refractory impact pad includes a bottom wall, a side wall, and a top wall. The bottom wall has a basal surface. The side wall extends from a periphery of the bottom wall. The side wall has an inner surface that at least partially encircles the basal surface of the bottom wall. The inner surface of the side wall has inner surface teeth distributed thereon and protruding inwardly from the inner surface of the side wall. The top wall is joined to the side wall and separated from the bottom wall by the side wall. The top wall extends over the inner surface of the side wall and the inner surface teeth of the side wall. The top wall has a bottom surface facing the bottom wall. The bottom surface of the top wall has bottom surface teeth distributed thereon and protruding toward the bottom wall.
An industrial furnace for melting materials is provided. The industrial furnace includes metal components, a refractory shell, and a fill. The refractory shell is positioned to cover an inner surface of the metal components such that one or more pockets are defined between the metal components and the refractory shell. The refractory shell has an inner surface that substantially defines a melting bath in which the materials are deposited for melting. The fill is disposed in each of the pockets. 90% to 99.5% of the fill is composed of one or more magnesia materials selected from the group consisting of dead-burned magnesia and fused magnesia.
goods for use as refractory materials, namely, tundish impact pads for modifying and controlling the turbulence and velocity of molten steel and tundish flow modifiers for redirecting and optimizing the flow of molten steel in a tundish
01 - Chemical and biological materials for industrial, scientific and agricultural use
17 - Rubber and plastic; packing and insulating materials
19 - Non-metallic building materials
37 - Construction and mining; installation and repair services
Goods & Services
ceramic powders used in manufacturing; aluminum oxides; magnesium oxides; silicon carbide; carbides ceramic fiber in bulk form, namely, ceramic enamel fiber insulation for industrial molten metal furnaces; ceramic fiber blankets, shapes, and modules, namely, material for thermal insulation and fire protection, namely, fire-resistant panels made of ceramic fibers; ceramic fiber in bulk form for use as refractory insulation in furnaces, namely, ceramic fibers manufactured from different compositions of silica, lime, magnesia, alumina, and zirconia material for use as a refractory lining in furnaces refractory products and materials of all kinds, in the nature of fired refractory material, not of metal for refractory applications, namely, refractory brick, not of metal, refractory mortar, not of metal, refractory castable mixes, not of metal, alumina refractory, namely, refractory castable mixes, not of metal, containing alumina particles and powders for refractory applications, zirconia refractory, namely, refractory castable mixes, not of metal, containing zirconia particles and powders for refractory applications, silicon carbide refractory, namely, refractory castable mixes, not of metal, containing silicon carbide particles and powders for refractory applications, magnesia refractory, namely, refractory castable mixes, not of metal, containing magnesia particles and powders for refractory applications, refractory, namely, refractory blocks, not of metal, and refractory concrete, refractory cement, refractory tile, namely, refractory blocks, not of metal, refractory gunning mix, not of metal, namely, refractory castables, not of metal, suitable for spraying, refractory construction materials, not of metal, and ceramic refractory material, not of metal, in preformed shapes and assemblies, namely, ceramic shapes for use in refractory furnaces building construction; repair, namely, repair of industrial furnaces, and related equipment and apparatus for use in the processing of molten metal, molten glass and for use in other high heat processing of materials, including, namely, refractory materials within these furnaces and equipment; installation services, namely, installation of refractory materials in the nature of insulating refractory materials, refractory bricks, refractory blocks, refractory castable mixes, refractory cement, refractory mortars, refractory shapes, refractory furnace linings and refractory shapes within industrial furnace equipment and related apparatus used in the handling of molten metal, molten glass, and for other thermal processes; installation and repair of industrial furnaces; installation and repair of industrial heating equipment
37 - Construction and mining; installation and repair services
Goods & Services
refractory products and materials of all kinds, in the nature of fired refractory material, not of metal for refractory applications, namely, refractory brick, not of metal, refractory mortar, not of metal, refractory castable mixes, not of metal, alumina refractory, namely, refractory castable mixes, not of metal, containing alumina particles and powders for refractory applications, zirconia refractory, namely, refractory castable mixes, not of metal, containing zirconia particles and powders for refractory applications, silicon carbide refractory, namely, refractory castable mixes, not of metal, containing silicon carbide particles and powders for refractory applications, magnesia refractory, namely, refractory castable mixes, not of metal, containing magnesia particles and powders for refractory applications, refractory, namely, refractory blocks, not of metal, and refractory concrete, refractory cement, refractory tile, namely, refractory blocks, not of metal, refractory gunning mix, not of metal, namely, refractory castables, not of metal, suitable for spraying, refractory construction materials, not of metal, and ceramic refractory material, not of metal, in preformed shapes and assemblies, namely, ceramic shapes for use in refractory furnaces building construction; repair, namely, repair of industrial furnaces, and related equipment and apparatus for use in the processing of molten metal, molten glass and for use in other high heat processing of materials, including, namely, refractory materials within these furnaces and equipment; installation services, namely, installation of refractory materials in the nature of insulating refractory materials, refractory bricks, refractory blocks, refractory castable mixes, refractory cement, refractory mortars, refractory shapes, refractory furnace linings and refractory shapes within industrial furnace equipment and related apparatus used in the handling of molten metal, molten glass, and for other thermal processes; installation and repair of industrial furnaces; installation and repair of industrial heating equipment
30.
AP Green -NARCO- Harbison- Walker ANH Refractories
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Technical consultation services in the field of refractory materials and refractory products.
(2) Engineering services in the field of refractory materials and refractory products.
