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1010 results about "Fire brick" patented technology

A fire brick, firebrick, or refractory brick is a block of refractory ceramic material used in lining furnaces, kilns, fireboxes, and fireplaces. A refractory brick is built primarily to withstand high temperature, but will also usually have a low thermal conductivity for greater energy efficiency. Usually dense firebricks are used in applications with extreme mechanical, chemical, or thermal stresses, such as the inside of a wood-fired kiln or a furnace, which is subject to abrasion from wood, fluxing from ash or slag, and high temperatures. In other, less harsh situations, such as in an electric or natural gas fired kiln, more porous bricks, commonly known as "kiln bricks" are a better choice. They are weaker, but they are much lighter, easier to form, and insulate far better than dense bricks. In any case, firebricks should not spall, and their strength should hold up well during rapid temperature changes.

High-temperature-resistant magnesia-carbon composite refractory brick and preparation method thereof

The invention provides a high-temperature-resistant magnesia-carbon composite refractory brick and a preparation method thereof, and belongs to the technical field of magnesium oxide refractory wall bricks, the refractory brick comprises the following raw materials: double-layer modified magnesium oxide, modified crystalline flake graphite, zircon powder, modified liquid phenolic resin and a benzoxazine cross-linking agent; the double-layer modified magnesium oxide is obtained by firstly coating magnesium oxide with powder phenolic resin, aluminum oxide and zirconium oxide and then coating magnesium oxide with asphalt, micron magnesium oxide, zirconium oxide and calcium oxide; the modified crystalline flake graphite is obtained by coating crystalline flake graphite with strontium hydroxide, asphalt and boron carbide; the modified liquid phenolic resin is formed by mixing liquid phenolic resin with a silane coupling agent and a polyacrylate cross-linked polymer. Double-layer modified magnesium oxide, modified crystalline flake graphite and modified liquid phenolic resin are prepared by adopting special components and a method and are matched with zircon powder and a benzoxazine cross-linking agent for use, and a reasonable forming and sintering process is designed, so that the refractory brick has good high-temperature stability, oxidation resistance, thermal shock resistance and the like.
Owner:YINGKOU SHENGHUA ZHONGTIAN REFRACTORY CO LTD

Annular furnace heat-resistant supporting forged base plate and additive manufacturing process and fixing device of annular furnace heat-resistant supporting forged base plate

The invention discloses an annular furnace heat-resistant supporting forged chassis and an additive manufacturing process and a fixing device thereof, and belongs to the technical field of plating of metal materials, and the annular furnace heat-resistant supporting forged chassis comprises the steps that heat-resistant alloy steel base metal with specific components is prepared; carrying out laser texturing and nickel-based alloy bottom layer pretreatment on the surface of the steel plate; performing laser cladding on high-silicon high-temperature alloy powder containing niobium and rare earth elements to form a functional cladding layer, and performing gradient cladding on the edge of the atmosphere guide hole; and finally, carrying out heat treatment and assembling with a fan-shaped refractory brick fixing device. A composite oxide film and a multi-scale strengthening system are constructed, hydrogen resistance and brittleness resistance are effectively achieved, interface thermal stress is relieved, cracking and stripping of a cladding layer are avoided, a fixing device adapts to thermal expansion, the atmosphere is dredged, and the annealing uniformity of a steel coil is improved; the problems of creep deformation, hydrogen embrittlement, cladding layer stripping and thermal stress cracking of a traditional supporting component under the conditions of high temperature, heavy load and nitrogen and hydrogen atmosphere are solved.
Owner:BAOMEITE (SHANGHAI) INTELLIGENT ENG CO LTD

A raw material quantitative mixing device for refractory brick processing

The present invention relates to the technical field of refractory brick production, and in particular to a raw material quantitative mixing device for refractory brick processing, comprising a mixing tank and a mixing mechanism arranged in the mixing tank for stirring the refractory brick raw materials, a discharging frame is fixedly connected to the top of the mixing tank, a metering cylinder is fixedly connected to the top of the discharging frame, a discharging mechanism for quantitatively discharging the raw materials in the metering cylinder is arranged in the discharging frame, an upper cylinder is fixedly connected to the center position inside the metering cylinder, four partitions are fixedly connected equidistantly between the inner side of the metering cylinder and the upper cylinder, arc-shaped discharging ports are opened at the bottom end of the metering cylinder and between the four partitions, adjustment plates are arranged on the side walls of the four partitions, and four lower cylinders are rotatably connected to the inner side of the upper cylinder. Through the arrangement of the above-mentioned structure, the present invention can quickly and flexibly adjust the storage space of the metering cylinder on the mixing tank according to the demand for increasing the quantity of raw materials for refractory brick production, can meet the production needs of refractory bricks with different performances, and greatly improve the convenience performance of the device.
Owner:JIANGSU ZHONGLEI ENERGY SAVING TECH DEV CO LTD

Sampling device for refractory brick detection

The invention provides a sampling device for refractory brick detection, and relates to the technical field of material sampling, the sampling device comprises a device main body and a drill cylinder with a vertical axis, and water is supplied to the lower end of the drill cylinder and sampling teeth through a water supply hole for cooling and lubrication. After first sampling, continuous water supply may be accumulated in the sampling groove, during later sampling, the through hole closest to the lower end of the drilling barrel is in an open state firstly, the negative pressure cavity sucks water accumulated in the sampling groove through the through hole, meanwhile, the drilling barrel continues to drill into the refractory brick, and the movable part in the through hole closest to the lower end of the drilling barrel makes contact with a sample; the through hole is closed and loses a water suction function, and water accumulated in the sampling groove is ensured to be within a certain range, so that the lower end of the drill barrel and the sampling teeth can be cooled and lubricated, a sample taken out later can be prevented from being excessively soaked, the subsequent drying work is reduced, and the working efficiency is improved. And irreversible damages, such as strength reduction and structure looseness, to the sample are reduced.
Owner:LENGSHUIJIANG ZHONGFU NEW MATERIALS CO LTD

Molding equipment for refractory brick processing

According to the forming equipment for refractory brick machining, the forming equipment is applied to the technical field of refractory brick forming, the composite die composed of the upper die body, the lower die body and the side die body is arranged, the upper die body, the lower die body and the side die body can punch refractory bricks during forming, and therefore the refractory bricks can be punched and formed in all directions; refractory bricks can be formed more uniformly, the density gradient is reduced, then the cracking phenomenon is reduced, the forming quality of the refractory bricks is improved, downward stamping force of the upper die can be converted into stamping force of the side face and the bottom face through a reversing stamping part arranged in the side die and a lower stamping part arranged in the lower die, all-directional stamping forming is achieved, and the production efficiency is improved. The fixed separating pieces are arranged between the adjacent side dies, the situation that formed refractory bricks are adsorbed on the side dies and are difficult to take out is prevented through side die separation, discharging is more convenient and efficient, meanwhile, abrasion of the side dies and the refractory bricks caused by friction between the refractory bricks and the side dies during discharging can be avoided, the side dies are protected, and the forming quality of the refractory bricks is improved.
Owner:GUANGXI DONGYI NEW MATERIALS CO LTD

Blast furnace castable cooling wall

The utility model discloses a blast furnace castable cooling wall, which relates to the technical field of blast furnace body cooling equipment and comprises a cooling wall base body, a cooling water pipe is arranged inside one side of the cooling wall base body, and a protective sleeve is sleeved on the side surface of the cooling water pipe extending out of the cooling wall base body; dovetail-shaped grooves are vertically formed in the side face of the other side of the cooling wall base body at intervals, anchoring parts are transversely arranged in the dovetail-shaped grooves at intervals, the anchoring parts in every two adjacent dovetail-shaped grooves are vertically arranged in a staggered mode, and a pouring layer is poured on one side of the dovetail-shaped grooves of the cooling wall base body; the blast furnace cooling wall has the beneficial effects that the part of the cooling water pipe pre-embedded in the cooling wall base body is protected by the protective sleeve, the casting technology of the blast furnace cooling wall hot surface after casting molding can adopt on-site integral casting construction, and the casting material is integrally cast on the hot surface of the cooling wall, so that the problems of falling and damage of refractory bricks, complex construction process and low construction cost in the past can be avoided. And the slag adhering capacity is high, the overall performance is good, and the device can adapt to large blast furnace body cooling working conditions.
Owner:SHILIN LUOHE METALLURGY EQUIP

Durable refractory brick forming device

The utility model discloses a durable refractory brick forming device which comprises a box body, a forming mechanism is installed at the bottom of the inner side of the box body, the forming mechanism comprises a reinforcing frame, a mold frame is installed on the inner side of the reinforcing frame, and the mold frame can be inserted into the inner side of the reinforcing frame in a sliding mode and can be fixed through bolts. The die frame is installed on the inner side of the reinforcing frame, certain protection and reinforcing effects can be achieved in the extrusion forming process of refractory bricks, the durability of the die frame is improved, meanwhile, due to the fact that the die frame can be detached from the reinforcing frame, the die frame can be conveniently and regularly cleaned and maintained, and the service life of the die frame is prolonged. And the mold frame is kept in a good use state, is not easy to damage and is more durable, so that the durability of the refractory brick forming equipment is improved.
Owner:SHANGHAI LIER REFRACTORY MATERIAL +1

Pressing equipment for refractory brick production

The invention relates to the technical field of refractory bricks, and discloses a pressing device for refractory brick production, the pressing device comprises a rack, a mold assembly is mounted on the rack, the mold assembly comprises a mold body, the mold body is provided with a vertically through cavity, a cover mold is arranged in the cavity, and a top plate is arranged in the cover mold; the die assembly further comprises a power part which is used for driving the cover die and the top plate to vertically move. A feeding assembly is installed above the mold assembly. The cover die is arranged in the cavity, and the cover die is upwards inserted into the hopper to take materials, so that during insertion, the raw materials can directly and vertically enter the cover die, even if a fillet in a small area protrudes, the raw materials can be normally filled, and the problem of insufficient blanking in the area is avoided; and the compactness after pressing and the quality of the fired refractory brick are ensured.
Owner:SHANDONG WANQIAO GROUP

High-strength refractory brick for garbage incinerator and preparation method of high-strength refractory brick

The invention relates to the technical field of refractory brick production, and discloses a high-strength refractory brick for a garbage incinerator and a preparation method thereof.The high-strength refractory brick is prepared from, by mass, 32-45 parts of fly ash, 18-30 parts of kieselguhr, 6-10 parts of modified aluminum silicate fibers, 20-30 parts of nano zirconium silicate loaded crystalline flake graphite powder, 7-10 parts of metal oxide and 1-3 parts of auxiliary materials. Fly ash and diatomite are used as raw materials, modified aluminum silicate fiber, nano zirconium silicate loaded crystalline flake graphite powder, metal oxide and auxiliary materials are compounded, the prepared refractory brick has high mechanical strength, fire resistance and oxidation resistance, the product quality of the refractory brick is improved, the refractory brick is prevented from cracking in the waste incineration process, and the service life of the refractory brick is prolonged.
Owner:WUXI YUANNENG REFRACTORIES CO LTD

Method and device for measuring torsion resistance of refractory brick based on three-dimensional point cloud

The invention discloses a method for measuring the torsion resistance of a refractory brick based on a three-dimensional point cloud, and belongs to the technical field of machine vision. The method comprises the following steps: collecting a three-dimensional point cloud of a to-be-detected surface of a refractory brick, and preprocessing the three-dimensional point cloud to obtain a planar point cloud; establishing an object coordinate system based on a principal component analysis method; obtaining a target depth image and an index map based on the plane point cloud; performing X-shaped sampling on the target depth image in the to-be-detected area, and obtaining a sampling point cloud in combination with the index map; and based on the sampling point cloud, obtaining the torsion degree of the refractory brick through a torsion degree evaluation method. The method improves the efficiency and accuracy of measuring the torsion resistance of the refractory brick.
Owner:WUHAN UNIV OF SCI & TECH

Turnover conveying equipment for safety protection in refractory material production

The invention discloses refractory material production safety protection turnover conveying equipment which comprises a conveying table and a conveying belt, the conveying belt is rotationally embedded in the conveying table, the arrangement assembly is arranged on the outer wall of the conveying table, and the arrangement assembly comprises an auxiliary frame, an adjusting frame, a mounting table, a lifting air cylinder, a lifting plate, a resistance reduction wheel, a rubber pad, a blocking wheel and a guide rail. The arrangement assembly drives a lifting plate and a rubber pad through a lifting air cylinder, the vertical position and the horizontal posture of the refractory bricks can be dynamically adjusted in combination with sliding of a resistance reduction wheel on a guide rail, the overturning assembly drives a driving frame to move along a sliding rail through a clamping air cylinder, and brick bodies are grabbed without damage in combination with negative pressure adsorption of a suction cup and flexible limiting of a mounting ring. A buffer spring and a limiting frame form an elastic clamping system, the thickness error of the brick body is dynamically compensated, overpressure damage is avoided, the whole process is automatically connected, the tidying assembly straightens the position of the brick body in advance, and a safety protection accurate clamping reference is provided for the overturning assembly.
Owner:LINYI LIFA REFRACTORIES CO LTD

Method for predicting thickness of refractory brick based on converter wall temperature

The invention relates to the technical field of converter safety monitoring, in particular to a method for predicting the thickness of refractory bricks based on converter wall temperature. The temperature distribution and the residual thickness of the refractory bricks are estimated according to the external furnace body temperature and the melt smelting temperature, and then the overhaul of the converter is judged according to the temperature distribution and the residual thickness of the refractory bricks, so that the real-time safety monitoring in the operation process of the converter is realized. The problem of how to monitor the operation risk of the converter is solved.
Owner:CHUXIONG DIANZHONG NON FERROUS METALS LLC

Lining structure of lime kiln

The lime kiln lining structure comprises a kiln top lining and a kiln body lining, and the kiln body lining comprises a first refractory brick layer, a second refractory brick layer, a first heat insulation layer, a second heat insulation layer and a third heat insulation layer which are sequentially arranged from inside to outside. Contact surfaces between two adjacent bricks in the first refractory brick layer are in concave-convex fit and are in sealed connection; the strength of the kiln top lining is higher than that of the first refractory brick layer, the second refractory brick layer, the first heat insulation layer, the second heat insulation layer and the third heat insulation layer, and the kiln top lining extends downwards to form a reinforcing part; kiln protecting plates are arranged on the inner side face of the kiln top lining and the upper side surface of the side, away from the second refractory brick layer, of the first refractory brick layer. The stability of the lime kiln lining can be enhanced, and the service life of the lime kiln can be prolonged; meanwhile, the heat preservation performance of the lime kiln can be enhanced, and heat loss is reduced.
Owner:GUANGDONG NANFANG SODA ASH IND

Raw gas conveying pipeline

The utility model relates to a raw gas conveying pipeline which comprises a pipeline body and a composite sealing heat insulation lining arranged in the pipeline body. The pipeline body is made of carbon steel, and the composite sealing heat insulation lining is composed of a refractory brick supporting layer, a sealing layer and a heat insulation layer which are sequentially arranged from inside to outside. According to the utility model, while the pipeline investment is reduced and the service life of the pipeline lining is greatly prolonged, the problem that the heat insulation effect of the pipeline is invalid due to the fact that tar and other substances in the high-temperature raw gas permeate into the heat insulation layer is avoided, and long-distance stable conveying of the high-temperature raw gas in the direct reforming process is realized.
Owner:ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC

A non-burned refractory brick and a preparation method thereof

The application relates to the field of fireproof bricks, and discloses a baking-free fireproof brick and a preparation method thereof. The baking-free fireproof brick comprises iron tailings, cement, fly ash, a functional additive, fine aggregate, quartz sand, a chromium aluminum phosphate binder, a water reducing agent and water. The functional additive is prepared by using aluminum chloride hexahydrate and alkaline silica sol as raw materials, ammonium molybdate tetrahydrate as a catalyst, growing mullite whiskers on the surface of silicon carbide fibers through vacuum impregnation and heat treatment, modifying the prepared composite silicon carbide fibers through 3-(methacryloxy) propyl trimethoxysilane, and then copolymerizing the modified composite silicon carbide fibers with acrylic acid and 4-hydroxybutyl vinyl ether. The chromium aluminum phosphate binder is prepared by using aluminum hydroxide, phosphoric acid and chromium trioxide as raw materials and calcium hydroxide as a curing agent. The baking-free fireproof brick prepared through the synergistic effect of the components has high compressive strength and bending strength, small water absorption and good baking-free fireproof and heat insulation performance.
Owner:YINGKOU GUANGYANG REFRACTORY MATERIAL CO LTD

Refractory brick firing waste gas discharging device

A refractory brick firing waste gas discharging device comprises a ventilation box body, a rotating support, a filter screen, a sealing plate, a driving motor, a gas inlet pipe, a gas discharging pipe and a gas flow impact pipe. Waste gas and smoke are sucked through the gas inlet pipe, enter the filter cavity, are filtered through the filter screen and then are discharged, the filter screen in the filter cavity can be blocked after operation for a period of time, the central batten is driven by the driving motor to rotate, and the first arc-shaped plate and the second arc-shaped plate are driven to rotate; in this way, the filter screen originally located in the filter cavity enters the residue discharging cavity, the filter screen originally located in the residue discharging cavity enters the filter cavity, then airflow is input through the airflow impact pipe, filter residues blocked on the filter screen in the residue discharging cavity are impacted and discharged through impact of the airflow, the filter residues enter the residue collecting cavity to be accumulated and then discharged, and the operation is repeated. Manual replacement is not needed, automatic replacement filtering and filter screen cleaning can be achieved, and the structural design is ingenious.
Owner:DONGTAI GANGTAI REFRACTORY MATERIALS CO LTD

Fabricated fused salt storage tank foundation and construction method thereof

The invention relates to an assembly type fused salt storage tank foundation and a construction method thereof. The foundation comprises a gravel layer, a ceramsite soil filling layer, a composite heat preservation layer, a leakproof steel plate assembly, a quartz sand cushion layer and a heat-resistant concrete ring wall surrounding the gravel layer, the ceramsite soil filling layer, the composite heat preservation layer, the leakproof steel plate assembly and the quartz sand cushion layer from bottom to top in sequence. Wherein the heat-resistant concrete ring wall is formed by splicing a plurality of prefabricated modules and is arranged on the gravel layer; a temperature measuring thermocouple assembly is further arranged in the leakage-proof steel plate assembly and used for detecting temperature changes. A steel fiber concrete layer and a refractory brick layer are sequentially arranged above the anti-leakage steel plate assembly and correspond to the lower portion of the molten salt storage tank wall plate. According to the heat-resistant concrete ring wall, the adopted prefabricated modules are rapid in installation and short in maintenance period, so that the construction period is short, the construction efficiency is greatly improved, the leakage detection system is arranged, leakage can be found in time, the accident treatment cost is effectively reduced, and the annual maintenance cost is reduced by 20-30%; therefore, the installation cost and the maintenance cost are greatly reduced.
Owner:BLUESTAR BEIJING CHEM MACHINERY

Cooling maintenance device for preparing refractory bricks

The utility model belongs to the technical field of refractory brick processing, and particularly relates to a cooling maintenance device for refractory brick preparation, which comprises a fixing frame, a conveying motor fixedly mounted on one side of the fixing frame, a transmission shaft arranged at one end of the conveying motor, a transmission belt arranged on the transmission shaft, a conveying roller fixedly connected to one end of the transmission shaft, and a collecting box arranged on one side of the fixing frame. A first spraying mechanism is arranged on the fixing frame, a driving mechanism is arranged in the fixing frame, a sliding groove is formed in the inner wall of the fixing frame, and a sliding block is arranged in the sliding groove. According to the refractory brick cooling device, the water tank, the water pump, the water guide pipe, the splitter plate and the spray head are arranged to be used in cooperation, water in the water tank can be sprayed out of the spray head through the water guide pipe and the splitter plate by driving the water pump to work, and refractory bricks on the conveying rollers can be cooled conveniently; and the top and the bottom of the refractory brick can be sprayed and cooled at the same time, and the cooling effect of the refractory brick is improved conveniently.
Owner:SHANDONG XINRUIXIANG NEW MATERIAL CO LTD

Masonry structure of high-temperature kiln

The utility model provides a high-temperature kiln masonry structure, and belongs to the technical field of kiln masonry. Comprising refractory bricks, heat preservation bricks, connecting bricks and connecting heat preservation bricks, the refractory bricks are built to form kiln walls, the connecting bricks are arranged between the two sets of kiln walls, the heat preservation bricks are built on the outer sides of the refractory bricks, and the connecting heat preservation bricks are built on the outer sides of the connecting bricks; one side of each refractory brick is provided with a mounting groove, the mounting grooves of every two adjacent refractory bricks are combined to form an assembling groove, one side of each insulating brick is fixedly connected with a protruding block, the protruding blocks are mounted in the mounting grooves, and the width of the protruding blocks is larger than the depth of the mounting grooves. The insulating brick has the advantages that the approximately closed cavity is formed between the insulating brick and the refractory brick, the insulating brick does not make large-area contact with the refractory brick through the arrangement of the protruding block, heat enters the cavity through the refractory brick, the solid contact area is reduced, conduction heat is reduced, and the insulating effect is improved.
Owner:ZHENGZHOU HRD NEW MATERIAL CO LTD

Refractory brick with assembly structure

The utility model relates to the technical field of refractory bricks, in particular to a refractory brick with a splicing structure, which comprises a refractory brick main body, an upper splicing piece is integrally arranged above the refractory brick main body, a lower splicing piece is integrally arranged below the refractory brick main body, and the upper splicing piece and the lower splicing piece are arranged in a staggered manner. The upper splicing pieces and the lower splicing pieces are of an engaged matching structure, clamping grooves are formed between the upper splicing pieces and the lower splicing pieces correspondingly, clamping pieces are clamped between the clamping grooves in the same layer, and heat dissipation grooves are formed in the front face and the rear face of the refractory brick body correspondingly. According to the refractory brick with the splicing structure, the splicing pieces clamped with each other are arranged above and below the refractory brick, meanwhile, the refractory brick is spliced in a staggered mode, integrity is higher, the splicing pieces are stable in structure and not prone to damage, and splicing stability is ensured. According to the refractory brick with the splicing structure, the penetrating clamping pieces are arranged between the splicing pieces, the clamping pieces are of a steel bar structure, and the structural strength of refractory brick splicing can be enhanced.
Owner:ZIBO BADOU FIREPROOFING MATERIALS CO LTD

Installation method of engineering black body element in industrial heating furnace

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.
Owner:SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE

Raw material crushing device for refractory brick production

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.
Owner:YIXING HENGXIANG REFRACTORY CO LTD

Raw material dust-free mixing device and process for processing refractory bricks at tapping hole of converter

The invention relates to the technical field of refractory brick processing, and discloses a dust-free raw material mixing device and process for converter tapping hole refractory brick processing, the dust-free raw material mixing device for converter tapping hole refractory brick processing comprises a material mixing cylinder, a stirring mechanism is arranged in the material mixing cylinder, and the stirring mechanism comprises an inner rotating cylinder, an outer rotating cylinder and a mounting ring; a driving mechanism is arranged at the top of the mixing barrel and comprises a driving motor, a pressure sensor, a driving gear, a rotating disc and a connecting ring, and a rotating column is fixedly mounted on an output shaft of the driving motor. The device is reasonable in design, the stirring resistance is monitored in real time through the pressure sensor, mechanical impact force is effectively converted and instantaneous overload is avoided by combining a pre-pressing buffer structure for connecting the spring and the damper, the motor is protected against damage through the design, the rotating speed in the mixing barrel can be kept stable, and the service life of the mixing barrel is prolonged. The continuous and uniform mixing of the high-alumina bauxite and the corundum powder under the variable-load working condition is ensured, and the durability of equipment and the production continuity are remarkably improved.
Owner:YINGKOU GUANGYANG REFRACTORY MATERIAL CO LTD

Refractory brick inclined hole drilling device

The utility model provides a refractory brick inclined hole drilling device which comprises a base, a supporting plate is arranged on the base in a rotating fit mode, a connecting rod is arranged between the supporting plate and the base, the two ends of the connecting rod are connected with the supporting plate and the base in a sliding mode respectively, positioning structures are arranged at the two ends of the connecting rod, and a sliding frame is arranged on the supporting plate in a sliding fit mode. Two clamping plates are arranged in the sliding frame in a sliding fit mode, baffles are fixed to the ends of the clamping plates and correspond to the sliding frame, and a drilling structure is arranged on the base. According to the inclined hole drilling device, the supporting plate is rotationally installed on the base, refractory bricks can be driven to incline through the supporting plate, and therefore inclined hole drilling is convenient, the connecting rod is installed between the supporting plate and the base, a good supporting effect can be achieved through the connecting rod, the clamping plate is installed in the sliding frame, and the baffle is installed at the end of the clamping plate. And refractory bricks can be clamped and fixed, and the refractory bricks are prevented from shaking in the drilling process.
Owner:HUBEI YEJING NEW MATERIAL CO LTD

Magnesia-carbon-based refractory brick and preparation method thereof

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.
Owner:HAIWEI ZHONGXING HIGH-GRADE MAGNESIA BRICK CO LTD

Refractory refractory brick annealing waste heat recycling system

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.
Owner:LUOYANG DAYANG HIGH PERFORMANCE MATERIAL

A raw material storage device for refractory brick production

The present application relates to a kind of raw material storage device for refractory brick production, including storage bucket, the inside of the storage bucket is provided with barrel cavity, the bottom front end of the storage bucket is equipped with outlet, the top end wall of the storage bucket is provided with opening, the inner side of the opening is equipped with tight plug cover, the middle end wall of the storage bucket is provided with gap, the end side of the gap is equipped with rotating disc, the front end wall of the rotating disc is provided with screw.The beneficial effects of the present application are: the raw material storage device for refractory brick production is movable through slide rail, sliding groove and slide, used for sliding displacement slide rail, changes the position of recessed plate, recessed plate side shift, will drive the storage vessel placed on the top of recessed plate to displace, so that it is more flexible and convenient to use, the sleeve is made of rubber material, used for sleeving on the outside of sub-tank, since sub-tank can rotate and displace, the sleeve is used to protect sub-tank during rotation and displacement, to prevent sub-tank from being damaged by knocking.
Owner:JIANGSU SUJIA GROUP NEW MATERIALS CO LTD

Refractory brick turnover device

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.
Owner:JIANGSU GREATWALL KILN & FURNACECT CO LTD

Anode roasting furnace cross wall building method

The invention relates to the technical field of carbon anode roasting furnaces, and provides an anode roasting furnace cross wall building method which comprises the steps that a cross wall deformation area is measured, and a cross wall is judged to be a deformed cross wall according to a comparison result between measured data and a preset deformation threshold value; the damage degree of the flame path wall in the adjacent direction of the deformed cross wall and the cross walls on the two sides is checked, and the deformed cross wall is dismantled layer by layer under the condition that preset requirements are met; the method comprises the following steps: cleaning broken bricks and aluminum silicate fiber scraps at the bottom of a furnace, inlaying and repairing a damaged base surface of the bottom of the furnace, smearing high-temperature cement gum with the thickness of 2mm-4mm on the base surface, laying refractory bricks with preset specifications on the base surface, laying aluminum silicate fiber blankets with the thickness of 20mm on two sides of each layer of refractory bricks, and detecting the perpendicularity of a newly-built cross wall when the building height reaches 1m; continuously constructing until a constructed target transverse wall is formed; and the wall surface flatness of the target cross wall is detected, and ultrasonic flaw detection is conducted on the target cross wall. According to the method, the transverse wall repairing quality and the furnace body stability are improved.
Owner:YUNNAN YUANXIN CARBON CO LTD

Segmented energy-saving structure of large trolley type annealing furnace

The utility model provides a segmented energy-saving structure of a large trolley type annealing furnace, which comprises a heat preservation baffle plate, a heat preservation baffle plate and a heat preservation baffle plate, the fireproof cotton is arranged between the heat preservation baffle and the fireproof bricks, and a steel frame is installed on the back face of the heat preservation baffle. According to the segmented energy-saving structure of the large trolley-type annealing furnace, the fireproof bricks and the fireproof cotton are arranged on the surfaces of the heat preservation baffles, so that when small-size plates are machined in the trolley-type annealing furnace or in the state that the charging amount is small, the plates are stacked to the designated position in the annealing furnace, and then the plates are stored in the annealing furnace; the tail end of the plate can be close to each other, and the space used by the plate can be sealed, so that the waste in the space of the trolley type annealing furnace can be reduced.
Owner:BAOJI TITANIUM ZIRCONIUM METAL TECH CO LTD