451 results about "Fire brick" patented technology

The invention discloses a mounting method of an engineering blackbody element in an industrial heating furnace, which comprises the following steps: three positioning holes are symmetrically formed in an element mounting surface in a triangular shape, a semicircular diversion trench is formed between every two adjacent positioning holes, and the mounting surface is subjected to sand blasting treatment; manufacturing a positioning gasket according to the curvature of the inner wall of the hearth, wherein the positioning gasket is arranged between the element mounting surface and the inner wall of the hearth; coating or spraying a high-temperature-resistant permeation type adhesive on the element mounting surface and the inner wall of the hearth, adhering the element to the inner wall of the hearth, and screwing the element on the inner wall of the hearth by adopting a screw through a positioning hole and a positioning gasket; high-temperature-resistant fastening screws are evenly distributed on the periphery of the element and vertically screwed into refractory bricks or concrete base materials on the inner wall of a hearth to lock the position of the element. According to the method, the defects of traditional engineering black body element installation are overcome, high-strength, long-acting and stable connection between the engineering black body element and the inner wall of the hearth is achieved, the problem that the element is prone to displacement and falling off under the high-temperature working condition is effectively solved, and the continuous effectiveness of kiln energy-saving transformation is guaranteed.

The utility model discloses a raw material crushing device for refractory brick production. The raw material crushing device comprises a rack, moving wheels, a crushing box body, a first crushing roller, a second crushing roller, a driving assembly and a screening mechanism, according to the raw material crushing device for refractory brick production, the driving assembly drives the first crushing roller and the second crushing roller to crush raw materials, the crushed materials are rapidly screened through the screening mechanism, and the situation that the yield of finished bricks is increased due to the fact that the particle sizes of the materials are different is avoided.

The invention discloses a magnesia-carbon-based refractory brick and a preparation method thereof, relates to the technical field of display optical films, and belongs to the technical field of surface modification of refractory materials. A sacrificial reaction layer and a transition bonding layer are prepared on the surface of the magnesia carbon brick through pretreatment of a base brick, preparation of coating slurry, gradient coating, curing and heat treatment; wherein the sacrificial reaction layer can realize high-temperature instant cooling through a controllable endothermic reaction, and meanwhile, a reaction product forms a compact protective layer to block slag permeation; the preparation process is simple and controllable, the prepared coating is firmly combined with the magnesia carbon brick body, the high-temperature oxidation resistance and the slag penetration resistance of the magnesia carbon brick can be remarkably improved, the service life of the magnesia carbon brick can be remarkably prolonged, and the magnesia carbon brick has the advantages of low cost and high practicability. The method is suitable for magnesia carbon brick protection under severe working conditions of high-temperature metallurgical furnaces and kilns and the like.

The invention belongs to the technical field of electric smelting refractory brick manufacturing, and discloses an electric smelting refractory brick annealing waste heat recycling system which comprises a heat absorption pipe of an annealing furnace, a heat dissipation coil pipe, a storage cabinet, an oil pump and a heat absorption pipe which are sequentially connected through a pipeline and used for forming a circulating oil way. The heat dissipation coil pipe is arranged in a heat storage oil tank filled with heat conduction oil, and an oil inlet connector and an oil outlet connector of the heat dissipation coil pipe respectively extend out of the heat storage oil tank; a first control valve is arranged on a pipeline between the outlet end of the heat absorption pipe and the oil inlet connector. According to the invention, heat slowly released during annealing of the electrically-fused refractory bricks is utilized to heat the sand molds stored in a centralized manner through the high-temperature heat-conducting oil pipeline, so that the heat energy waste is reduced, and the cost is reduced; and through the heat storage oil tank, the heat buffering effect is achieved, the stability of heat energy exchange of the system is guaranteed, and waste heat recycling in the whole annealing period is achieved.

The utility model discloses a refractory brick turnover device which comprises a bottom plate and a face plate, a clamping assembly is arranged above the face plate, the clamping assembly comprises a clamping plate, the inner wall of the clamping plate is connected with a friction pad through a bolt, one end of the clamping plate is connected with a rotating disc through a bolt, a first hole groove is formed in the circumferential outer wall of the clamping plate, and a second hole groove is formed in the circumferential outer wall of the clamping plate. A first hole groove is formed in the bottom plate, a first fixed rod is arranged on the inner wall of the first hole groove, a first movable rod is arranged in the first fixed rod, a first spring is arranged on the circumferential outer wall of the first movable rod, an observation assembly is arranged above the bottom plate and comprises an observation instrument, and a moving block is connected to the bottom of the observation instrument through a bolt. According to the refractory brick turnover device, through the clamping assembly, adjustment of the clamping distance of refractory bricks can be well achieved, and then through the observation assembly, a worker can conveniently observe the state of a brick body through an observation instrument.

The application discloses a raw material batching device for high-strength light-weight firebrick production and a preparation method thereof, relates to the field of firebrick production, and comprises a water platform surface, an inclined platform surface and a ring-shaped frame. The inclined platform surface is connected to the side of the water platform surface, the high point of the inclined platform surface is flush with the water platform surface, two driving shafts are rotatably connected to the water platform surface, and driving columns are fixedly connected to the two ends of the driving shafts. The ring-shaped frame comprises two equal-diameter rings, the two rings are placed on the two driving columns, a power assembly for driving at least one driving shaft to rotate is arranged on the top of the water platform surface, and a batching box is fixedly connected between the two ring-shaped frames. The rotation of the ring-shaped frame can be realized through the driving of the motor, the whole batching box is driven to rotate, and meanwhile, the mixing performance of the raw materials in the movement process is further improved through the arrangement of the stirring blades and the elastic diaphragm, so that the produced firebricks are uniform in texture and low in defective product rate.

The invention discloses a copper smelting anode furnace burner block and a manufacturing method thereof, and belongs to the technical field of metallurgical kiln refractory materials. The copper smelting anode furnace burner block is prepared from the following raw materials in percentage by mass: 85 to 89 percent of Al2O3, 6 to 10 percent of ZrO2, 4 to 5 percent of Cr2O3 and 0.5 to 1 percent of SiO2. Compared with a common shaped refractory brick serving as the anode furnace burner brick, the novel castable is adopted for pouring the burner brick, integral forming is achieved, the burner brick has high physical and chemical properties and high compression resistance and shock resistance, corrosion resistance and erosion resistance are achieved, the service life is greatly prolonged, the repairing frequency of the burner brick is reduced, and the service life of the anode furnace is prolonged. And the use cost is reduced by more than 50%.

The method comprises the following steps that S1, dry materials and a binding agent are provided, and the dry materials comprise 19 wt%-24 wt% of intaglio corundum with the particle size being 3-5 mm, 22 wt%-35 wt% of intaglio corundum with the particle size being 1-3 mm, 12 wt%-19 wt% of white corundum with the particle size being 0-1 mm, 18 wt%-24 wt% of white corundum fine powder with the particle size being smaller than 200 meshes and 2 wt%-4 wt% of composite metal powder; s2, the dry material and a binding agent are mixed and ground, and a mixed and ground material is obtained; and S3, molding and drying the mixed and ground material to obtain the fire-resistant heat-insulating brick. The refractory brick produced by adopting the inked corundum and the white corundum as main raw materials, adding the composite metal powder and adding the additional binding agent has the advantages of high strength, good thermal shock resistance, good permeability resistance, good erosion resistance and long service life, and can be widely applied to rotary kilns, cement kilns and other parts.

The utility model relates to the technical field of refractory bricks, in particular to an efficient refractory brick pressing and forming device which comprises a shell, a forming mechanism is arranged in the shell, a feeding mechanism is installed on one side of the shell, round holes are formed in the surface of the shell, and a material conveying mechanism is arranged on the surface of the feeding mechanism. According to the efficient compression molding device for the refractory bricks, by arranging the material conveying mechanism, a feeding hopper, a material conveying barrel, a second motor, a second rotating shaft, a spiral blade and a material conveying pipe, raw materials can be conveniently added into the material storage box, and by arranging the feeding mechanism, a first motor, a first rotating shaft and a stirring paddle, the raw materials can be conveniently fed into the material storage box; the raw materials in the material storage box can be stirred, so that the raw materials are uniformly mixed, a third air cylinder, a hose and a round hole are arranged, the raw materials are conveniently added into the forming groove, manual adding is not needed, the working efficiency of the device is improved, and the safety of the device is improved.

The utility model relates to the technical field of ring-type roasting furnaces, and discloses a ring-type roasting furnace for producing high-aluminum insulating refractory bricks, which comprises a ring-type roasting furnace, a feeding channel is fixedly mounted on the upper surface of the ring-type roasting furnace, an arc-shaped mounting groove and a fixing component are arranged on the upper surface of the feeding channel, and the fixing component is arranged on the ring-type roasting furnace. The fixing assembly comprises two fixing plates, the two fixing plates are fixedly connected to the front surface and the rear surface of the feeding channel correspondingly, multi-section air cylinders are fixedly mounted on the upper surfaces of the two fixing plates correspondingly, the telescopic ends of the two multi-section air cylinders are fixedly connected with a lifting plate, and two mounting plates are fixedly connected to the lower surface of the lifting plate. A circular plate is fixedly connected to the lower surfaces of the two mounting plates, a worker can conveniently and rapidly open the circular cover by arranging the fixing assembly, then the convenience of opening the circular cover is improved, and the practicability of the ring type roasting furnace for high-aluminum heat-insulating refractory brick production is improved.

The utility model discloses an isostatic pressing press for refractory brick production, which comprises a supporting table, a brick die is arranged on the upper surface of the supporting table, a supporting mechanism is arranged in the supporting table and is positioned in the brick die, a plurality of supporting columns are fixedly connected to the upper surface of the supporting table, and the supporting columns are fixedly connected to the lower surface of the supporting table. The supporting column is sleeved with a lifting plate, and the lower surface of the lifting plate is fixedly connected with an insertion rod. According to the brick mold storage device, the brick mold can be unlocked to be supported when no raw materials are contained in the mold, so that the brick mold can move downwards along with starting of a static press to be stored, abrasion of the brick mold is avoided, and the effect of prolonging the service life is achieved. When materials are placed in the mold, the materials press the bearing plate downwards, so that the two contact blocks below the bearing plate move outwards under the action of the first inclined plane and the second inclined plane to be in contact with the brick mold.

The invention relates to the technical field of glass hot working equipment, in particular to a matrix type temperature control furnace for parallel heating and wire drawing of glass bars, which comprises a core heating temperature equalizing module, a three-dimensional staggered heating assembly, an end face protection enhancing module, a closed-loop temperature control system and a furnace body fixing and supporting module. The core heating temperature-equalizing module is an aluminum oxide or silicon carbide integrally-formed high-temperature refractory brick, a temperature-equalizing cavity and a bar channel are arranged in the core heating temperature-equalizing module, and the wall of the cavity is coated with a zirconium oxide coating. The three-dimensional staggered heating assembly comprises silicon carbide rods which are embedded through staggered mounting holes in four sides and are connected in parallel; the end face protection reinforcing module is a double-layer stainless steel plate, and a ceramic fiber heat insulation pad is clamped. The closed-loop temperature control system comprises a K-type thermocouple, a temperature itinerant detector and a temperature controller and is in linkage with a silicon controlled rectifier power adjusting power source, and the furnace body fixing and supporting module comprises a side wall protection plate and threaded lifting supporting legs. According to the technical scheme, the thermal field is uniform, temperature control is accurate, the structure is stable, multi-rod parallel wire drawing is adapted, and the production efficiency and the product uniformity are improved.

The utility model relates to the technical field of thermal insulation materials, in particular to an erosion-resistant corundum refractory brick which comprises a brick body, an inserting groove is formed in the inner side of the brick body, a filling brick is inserted in the inserting groove, a positioning screw is fixedly installed in the inserting groove, an inserting hole is formed in the middle of the filling brick, and the inserting hole is communicated with the inserting groove. And the positioning screw rod is inserted into the insertion hole, and the outer surface of the positioning screw rod is in threaded connection with a positioning cap. The utility model has the advantages that in the long-time use process, the structure which is firstly eroded or damaged by collision is the filling brick, so that when a certain filling brick is seriously eroded or seriously damaged, the positioning cap can be taken down through rotation, and then the filling brick is disassembled and replaced, thereby facilitating the maintenance of the lining in the later period, and improving the service life of the lining. The positioning screw rod is in threaded connection with the interior of the brick body, so that the positioning screw rod is detachable, and the positioning screw rod can be detached and replaced if the positioning screw rod is damaged in the long-time use process.

The invention belongs to the technical field of refractory materials, and particularly relates to an environment-friendly high-temperature-resistant refractory brick and a preparation method thereof. The environment-friendly high-temperature-resistant refractory brick is prepared from the following raw materials in percentage by weight: 12 to 15 weight percent of crystalline flake graphite, 8 to 12 weight percent of modified fly ash, 1 to 3 weight percent of zirconium oxide, 5 to 8 weight percent of composite binder and the balance of magnesium oxide, the modified fly ash is prepared by the following preparation processes: adding fly ash into a nitric acid solution, stirring, filtering, washing and drying to obtain active fly ash; adding the active fly ash, a surfactant and scandium chloride into water, adjusting the pH value at 50-60 DEG C, standing, filtering, washing and drying to obtain scandium modified fly ash; ball-milling and mixing the scandium modified fly ash, lime slag and triethanolamine, and calcining to obtain the modified fly ash. The refractory brick disclosed by the invention has excellent compression strength, high-temperature fracture resistance and excellent oxidation resistance.

The invention belongs to the field of refractory materials, and provides a light heat-insulating refractory brick and a preparation method thereof. The light heat-insulating refractory brick comprises particles, mixed powder and an additional binding agent, the particles comprise, by weight, 10-15 parts of expanded vermiculite and 30-45 parts of closed cell perlite, and the mixed powder comprises, by weight, 15-25 parts of spherical quartz powder and 5-15 parts of perlite dust collecting powder. The raw materials comprise, by weight, 5-10 parts of waste silica brick powder, 5-10 parts of siliceous pyrophyllite powder, 10-15 parts of Jiaozhou white clay, 5-15 parts of sodium montmorillonite powder and 5-15 parts of limonite powder; the additional binding agent comprises the following raw materials in parts by weight: 3-5 parts of binding slurry and 3-5 parts of pre-gelatinized starch. The refractory brick disclosed by the invention is a light heat-insulating refractory brick which is small in volume density, small in heat conductivity coefficient and capable of meeting the requirement of heat insulation in a high-temperature kiln at 900-1000 DEG C in normal-temperature compressive strength.

The utility model discloses a device for conveniently taking out a large brick, which belongs to the technical field of refractory brick forming and particularly comprises a mold frame and a forming mold, the forming mold is fixedly connected inside the mold frame, a taking-out mechanism is arranged on the mold frame and comprises a guide rail, a moving seat and a placing seat, the guide rail is fixedly connected onto the mold frame, and the moving seat is fixedly connected onto the placing seat. The moving seat is connected to the guide rail in a sliding manner, and the placing seat is rotationally connected to the moving seat; by means of the guide rail, the moving seat and the placing seat, after green bricks are placed on the placing seat, the problem of center-of-gravity shift in the prior art is solved, rotation is more flexible and convenient, use by workers is facilitated, and practicability of the device is improved.

The application relates to the field of refractory materials, in particular to a surface treatment process for the bottom of an aluminum electrolysis cell, which solves the problem that composite metal objects are difficult to form a dense structure with non-metallic inorganic matters such as Si3N4 and SiC, and that more micropore gaps lead to the penetration of aluminum liquid and electrolyte into the refractory material and the damage of the refractory material, and the surface treatment process comprises the following steps: preparing a boric acid refractory brick, roughening the surface of a refractory bearing material, coating a permeable material on the outside of the refractory bearing material, the thickness of the permeable material being 1-10 mm, heat treatment at 1300-1420 DEG C for 5-12 h, removal of the excess permeable material to obtain a refractory material precursor, placing a barrier material on the surface of the refractory material precursor, forming a barrier layer through cold isostatic pressing, heat treatment, formation of a high-density impedance layer on the surface of the refractory material precursor, and completion of the surface treatment. The application can realize the combination of dense inorganic non-metal and metal, and improve the corrosion resistance of the refractory material.

The utility model relates to firebrick preparation technical field, concretely to a kind of high-strength light firebrick preparation device, including driver, the inside installation of driver is mould, the drive end of driver is installed with extruder, the upper surface of mould is provided with feeding device, feeding device includes guide tube, guide tube is placed on the upper surface of mould, guide tube is internally provided with guide slot, the lower surface of guide tube is provided with discharge port, discharge port is aligned with the opening of mould upper surface, the other end of guide tube is fixedly connected with cylinder, the drive end of cylinder is fixedly connected with push plate, push plate is slidably connected with the inner wall of guide tube, the side of push plate is fixedly connected with closure plate, closure plate is slidably connected with the inner wall of guide tube.The utility model, by setting feeding device, can effectively facilitate worker to feed raw material, avoid the situation that worker appears material spillage when feeding, thereby reduce the waste rate of firebrick raw material.

Systems and method of reducing corrosion within a glass manufacturing apparatus are provided herein. The glass manufacturing apparatus comprises a melting vessel having a flow block assembly which provides a conduit between an inside volume and downstream process. The flow block assembly comprises at least one refractory brick defining an exterior side for facing away from an inside volume of the refractory and an interior side for facing toward the inside volume of the refractory. At least a portion of the interior side comprises a cladding formed from a corrosion resistant cladding material. The flow block assembly further comprises a tube defining an interior end and an opposite exterior end disposed through the at least one refractory brick such that the interior end extends beyond the interior side of the at least one refractory brick, and the exterior end extends beyond the exterior side.

This invention relates to the field of refractory brick manufacturing technology, solving the problem of poor coordination between various process equipment units in refractory brick production lines. Specifically, it discloses an automated production line and process for refractory brick production, including a crushing unit, a feeding unit, a weighing unit, a mixing unit, a spreading unit, a pressing unit, a detection unit, a stacking unit, and a firing unit connected by control system signals. The discharge end of the crushing unit is connected to the feed end of the feeding unit; the discharge end of the feeding unit is connected to the feed end of the weighing unit; the discharge end of the weighing unit is connected to the feed end of the mixing unit; the discharge end of the mixing unit is connected to the feed end of the spreading unit; the discharge end of the spreading unit is correspondingly arranged with the feed end of the pressing unit; the discharge end of the pressing unit is connected to the feed end of the detection unit; and the discharge end of the detection unit is connected to the feed end of the stacking unit. This invention is used for refractory brick production and features a high degree of automation and strong equipment coordination.

This invention belongs to the field of refractory brick production technology, specifically a method for preparing electrofused magnesia-chrome bricks. Addressing the problems of high sintering temperatures leading to brick cracking and high energy consumption in existing technologies, the following solution is proposed, including the following steps: High-purity magnesia, electrofused magnesia with a large crystalline structure, electrofused magnesia-chrome sand, ultrafine powder, and rare earth sintering agent are added to a mixing mill for mixing; molding is then performed by feeding the mixed raw materials into a friction brick machine for molding; the molded brick blanks are then dried at a temperature set between 110-200℃ for 48 hours. This invention lowers the firing temperature of magnesia-chrome bricks by adding rare earth sintering agent and using ultrafine powder, achieving better firing results at a lower firing temperature and reducing energy consumption; by adding a certain amount of rare earth sintering agent, a certain amount of uniform micropores are generated during firing, improving the thermal shock resistance of the magnesia-chrome bricks.

The utility model discloses a loading and transporting device for a cathode material graphitization crucible. The loading and transporting device comprises a bottom support unit and a heat insulation unit, the bottom supporting unit comprises a bottom flat plate, a plurality of cavities are formed in the upper end of the bottom flat plate, and a top supporting plate is arranged at the upper end of the channel steel plate. The heat insulation unit is arranged at the upper end of the bottom supporting unit and comprises four side baffles arranged on the side portions of the periphery of the upper end of the top supporting plate, a plurality of layers of refractory bricks are arranged in a rectangular area defined by the inner side faces of the side baffles, and each layer comprises a plurality of refractory bricks laid in a staggered mode. The device can be effectively prevented from being damaged by the high-temperature cathode material graphitization crucible, and the safety and the stability in the loading and transporting process are improved.

A refractory layer structure includes a plurality of refractory layers stacked on each other. Each of the refractory layers includes refractory bricks. Each of the refractory bricks is formed as a cuboid having a pair of oppositely positioned first diverging sides and a pair of oppositely positioned second diverging sides. The first diverging sides diverge away from each other from a top to a bottom of the refractory bricks. The second diverging sides diverge away from each other from the bottom to the top of the refractory bricks. The first diverging sides and the second diverging sides are connected to each other. Each of the first diverging sides have a first diverging side protrusion projecting from a top surface thereof. Each of the second diverging sides have a second diverging side protrusion projecting from a top surface thereof.

The invention relates to the technical field of lime production, in particular to a double-hearth shaft kiln material level automatic adjusting system and method based on image processing, and the system comprises a high-temperature industrial endoscope, a lens alignment refractory brick, a PLC control system, a differential supporting plate discharging device and a hydraulic system; the lens alignment refractory brick is arranged on the side wall of the top of the kiln chamber and coincides with the horizontal center line of the kiln chamber. The high-temperature industrial endoscope is arranged on the opposite side of the lens alignment refractory brick to ensure that a complete limestone charge level can be contained in the visual field of the lens, and the lens alignment refractory brick is located at the vertical position in the visual field of the lens, so that the axis of the lens coincides with the horizontal center line of the kiln chamber; the differential supporting plate discharging device is located under a discharging port of the shaft kiln, 6-8 supporting plates are evenly arranged in the circumferential direction, and each supporting plate can independently conduct vibration discharging. According to the method, the height of each area of the material surface is calculated and adjusted in real time, so that the limestone material surface is smoother, the calcination time of each part of the limestone material is more uniform, and the underfiring rate and the overfiring rate are reduced.

The application belongs to the technical field of intelligent construction and digital operation and maintenance, and particularly discloses a coke oven refractory brick full life cycle tracing management method and system based on an Internet of Things. The method takes a coke oven masonry BIM pre-layout model as a data basis and a space calibration basis, integrates the refractory bricks with clear construction sequence dependency into standardized masonry sequence brick board units, and arranges Internet of Things identification tags. By constructing a standardized association account of the brick board unit-space position-masonry sequence, the state evolution of the refractory bricks from the board distribution, the transfer, the on-site positioning, the partial use to the masonry completion is monitored in real time. Taking the unit ID or the section code as an index, a full life cycle structured history database is constructed, and relying on the database, an intelligent analysis model is trained to realize the refractory brick loss rule analysis, the implicit damage site prediction and the replacement material demand calculation. The application realizes the predictive maintenance of the coke oven refractory bricks and has wide engineering application value.

An evanescent mode casting smelting sand-washing-prevention pouring basin belongs to the technical field of casting and comprises a basin wall 10 and a basin bottom 20 which form a molten iron containing space, the basin bottom 20 is provided with a plurality of runners 21 capable of enabling molten iron to flow out, a refractory brick set is embedded in the basin bottom 20, the upper surface of the basin bottom 20 comprises a resin sand layer, and the refractory brick set is not lower than the resin sand layer. The inner surface of the basin wall 10 and / or the surface of the refractory brick set are / is coated with fireproof paint, the refractory brick set is located at the molten iron scouring position, and molten iron buffered by the refractory brick set flows to the runner 21 through the resin sand layer. Through double protection measures of brushing the alcohol-based coating on the inner side wall of the pouring basin and arranging the refractory bricks at the inner bottom of the pouring basin, the anti-scouring capability of the area is obviously enhanced, sand impurities are prevented from flowing into a cavity, the sand hole defect of a casting is reduced, and the finished product quality of the casting is obviously improved.

The utility model relates to a refractory brick with a regular hexagon structure, which structurally comprises a base 101 and a protruding part 102, the base 101 and the protruding part 102 are both of a hexagon structure, the hexagon side lengths of the base 101 and the protruding part 102 are equal, the protruding part 102 is positioned at the upper part of the base 101, the first protruding side 1022 of the protruding part 102 is parallel to the first base side 1011 of the base 101, and the second protruding side 1022 of the protruding part 102 is parallel to the first base side 1011 of the base 101. The first protruding edge 1022 coincides with the center line of the base 101, and the thickness of the base 101 is the same as that of the protruding part 102. The refractory brick provided by the utility model is suitable for bricklaying of kilns, and is also suitable for spliced brickwork of civil buildings and the like.

The invention discloses a preparation process of an unfired building block containing stone powder, and belongs to the field of building solid waste recycling. The process comprises the following steps: performing graded crushing to obtain four-stage construction waste aggregate, modifying the four-stage construction waste aggregate with a silane coupling agent-cement composite coating agent, mixing the modified four-stage construction waste aggregate with superfine stone powder according to gradient grading, and performing layered vibration pressure forming and baking-free curing to obtain the building block. According to the invention, three-stage process synergy is adopted: graded crushing is adopted to optimize particle size distribution, surface coating is adopted to enhance interface bonding, gradient grading is adopted to improve structural compactness, 28d compressive strength of the obtained building block is greater than or equal to 15MPa, solid waste mixing amount is greater than or equal to 90%, energy consumption is reduced by 80% compared with that of a traditional process, and carbon emission is reduced by more than 60%. The process is suitable for large-scale production of high-performance unfired wall materials, and has remarkable environmental protection and economic benefits.

1. Name of the designed product: refractory brick. 2. Use of the designed product: refractory brick for kiln. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.