61 results about "Fire clay" patented technology

The invention relates to the technical field of molten salt chlorination furnaces, in particular to a furnace lining structure and method capable of achieving furnace temperature control and waste heat utilization of a molten salt chlorination furnace, and the furnace lining structure sequentially comprises a metal furnace shell, a heat insulation basalt plate layer, an anthracene oil graphite sealing layer, a first refractory clay brick layer, a phosphate pouring material layer and a second refractory clay brick layer from outside to inside. And a corrosion-resistant metal conduit is pre-buried in the phosphate castable layer. According to the furnace lining structure and method capable of achieving furnace temperature control and waste heat utilization of the fused salt chlorination furnace, the corrosion-resistant metal guide pipe is pre-buried in the phosphate pouring material layer, coarse TiCl4 clear liquid is utilized to circularly absorb heat in the guide pipe, and linkage control of the temperature sensor and the flow adjusting valve is combined, so that the temperature in the fused salt chlorination furnace can be accurately adjusted in real time. And compared with a traditional cooling mode of back spraying of high-solid-content materials, the problem that the gas amount in the furnace is suddenly increased due to spraying evaporation is solved, and the stability of the negative pressure in the furnace is effectively guaranteed.

The utility model relates to a steel ladle upper nozzle brick which comprises a nozzle brick upper section and a nozzle brick lower section, the lower end face of the nozzle brick upper section is connected with the upper end face of the nozzle brick lower section through a fire clay connecting layer, an upper cast hole channel is arranged in the nozzle brick upper section, a lower cast hole channel is arranged in the nozzle brick lower section, and the nozzle brick upper section is integrally sleeved in a seat brick. The upper portion of the nozzle brick lower section is sleeved with the seat brick, the lower portion of the nozzle brick lower section is sleeved with the mechanism base, a mounting plate is sleeved between the mechanism base and the seat brick, and joint filling fire clay layers are arranged between the outer side faces of the nozzle brick upper section and the nozzle brick lower section and the seat brick. The nozzle brick upper section and the nozzle brick lower section are combined and butted to form the nozzle brick single body, so that the volume and the dead weight of the upper nozzle brick single body are reduced, the manufacturing quality of the brick body and the transfer convenience after production and forming are improved, and the upper section or the lower section of the upper nozzle brick can be independently replaced according to the erosion condition after a certain furnace number is achieved. The utilization rate and the service life of the upper nozzle brick are improved, and the effects of reducing cost and improving efficiency are achieved.

This invention discloses a neutral refractory material for medium-frequency induction furnace linings. The raw materials include: 78-83 parts by weight of quartz sand, 5-7 parts by weight of fire clay, 5-7 parts by weight of fluorite, 0.8-1.2 parts by weight of alumina, 1.2-1.8 parts by weight of silicon carbide, and 0.3-0.7 parts by weight of calcium oxide. The preparation method is also disclosed. The method of this invention is simple, with the main components being quartz sand, fire clay, and fluorite, with quartz sand comprising the largest proportion. In addition, some additives such as alumina, silicon carbide, and calcium oxide are added to improve the refractory properties and chemical reactivity of the furnace charge. This results in a material with certain slag resistance and a good service life, exhibiting good overall performance and suitable for melting various metals. The furnace lining mixture is non-toxic, harmless, environmentally friendly, and pollution-free.

The application provides a new method for improving side combustion chamber horizontal row curve, relates to the technical field of coke oven thermal regulation, and is mainly applied to the current large coke oven. With the prolongation of service time, the existence of factors such as the absence of fire clay between the masonry structure of the coke oven, the damage of the masonry, acid and alkali corrosion and the like, the internal leakage phenomenon of the coke oven occurs. Through the optimization and improvement of the equipment, the vertical flue corresponding to the side waste gas on-off valve control of the side combustion chamber is heated by coke oven gas instead of blast furnace gas. The side combustion chamber horizontal row curve in actual operation can be optimized from the'steamed bun type' to the 'oblique line type', and the uniform and stable maturation of the coke in the horizontal direction is ensured.

The high-performance double-layer material energy-saving sliding plate brick comprises a working material layer, a non-working material layer, an iron shell, a fire clay layer, a casting hole and a coating layer, the working material layer and the non-working material layer are compounded to form a sliding plate brick body, the iron shell is fixedly connected with the body through the fire clay layer, the casting hole penetrates through the body and the iron shell, and the coating layer is arranged on the surface of the body. The side, away from the iron shell, of the cast hole and the body is a working material layer, the non-working material layer is tightly attached to the iron shell, and the coating layer is arranged on the surface of the working material layer. The invention aims to provide the high-performance double-layer material energy-saving sliding plate brick which is long in service life, can utilize the waste corundum recycled material, saves resources, reduces the cost and does not affect the overall performance, and the preparation method thereof.

The invention discloses a fireproof door, and belongs to the technical field of fireproof doors. The fireproof door comprises a door leaf and a door frame, wherein the door leaf is hinged to the door frame; the door leaf comprises a first door leaf panel, a second door leaf panel and a door core, and the door core is located between the first door leaf panel and the second door leaf panel. The door core is filled with a powder material, and the powder material comprises the following components in percentage by mass: 85%-92% of fly ash, 4%-15% of refractory soil, 1%-4% of water glass and 3%-15% of water. Wherein the fly ash and the refractory clay both have good fire resistance and heat insulation performance, the water glass is mainly used for bonding the fly ash and the refractory clay, the door leaf filled with the powder material can form a barrier to prevent fire spreading, and the door leaf has good fire resistance and heat insulation performance, so that the door leaf has good fire resistance and heat insulation performance. The fireproof door corresponding to the door leaf also has good fire resistance and heat insulation performance.

The application relates to the technical field of refractory materials, and discloses a kind of micro-expansion high-strength wear-resistant zircon inlaying fire clay and a preparation method thereof.The fire clay is prepared from slide plate brick regenerated material, fused white corundum, alumina powder, calcium aluminate cement, micro-silica powder, special additives and dihydrogen aluminum phosphate binder as raw materials through physical blending.The zircon inlaying fire clay has good cohesiveness in cold state, high resistance to molten steel penetration in high-temperature use, low linear change rate after burning, effectively reduces the shrinkage rate of the fire clay in high-temperature use, and the gap between the used zircon ring and the mother brick at the brick joint is not appeared after using the zircon ring and the mother brick for more than 20 furnaces, which is beneficial to improve the resistance of the zircon inlaying fire clay to molten steel and molten slag erosion, corrosion and penetration.

The utility model relates to the technical field of molten steel storage and transportation equipment, in particular to a masonry structure of a steel ladle heat insulation material. The structure comprises a refractory material lining body located in a steel shell, the refractory material lining body comprises a heat insulation lining, a permanent lining and a working lining, the heat insulation lining is a high-strength heat insulation plate, and the permanent lining is a high-strength heat insulation brick; the high-strength heat insulation plate is built on the inner wall of the steel shell through bonding fire clay; the high-strength heat-insulating bricks are built on one side of the hot surface of the high-strength heat-insulating plate through bonding fire clay; and the working lining is built on one side of the hot surface of the high-strength heat-insulating brick. While heat loss of molten steel is effectively isolated and the temperature of the steel ladle shell is reduced, the overall stability of the steel ladle lining can be ensured, and the technical problems that the steel ladle working lining falls off, production is influenced, and the service life of the steel ladle is short are solved.

The invention provides a treatment method of industrial solid wastes, which relates to the technical field of resources and environments and comprises the following steps: stirring and mixing desulfurized fly ash generated by dry desulfurization of coke oven flue gas and water in proportion to form a sealing material; after the coal charging operation of the coke oven is finished, pouring the prepared sealing material into a gap between a large coal charging cover at the top of the oven and an oven body; in the coking process, the sealing material is dehydrated and cured at the temperature of 80-200 DEG C to form a sealing layer for sealing smoke dust; and after the coke is mature, the cured sealing layer enters a coke oven for combustion treatment along with coal charging operation. According to the invention, the solid waste is utilized and disposed, the desulfurized fly ash solid waste replaces the traditional fire clay, the production cost of coking enterprises is reduced, and the good dehydration curing property of the desulfurized fly ash is utilized to prevent smoke overflow of the coke oven large cover in the coking process.

The invention belongs to the field of powder material premixing, and particularly discloses a fire clay and refractory premixed powder preparation stirring device which comprises a rack, a feeding mechanism and a stirring machine. The rack comprises a plurality of supporting rods which are annularly arranged, a platform is arranged among the supporting rods, and a plurality of stations are arranged between the supporting rods and the platform; the feeding mechanism comprises a storage hopper arranged on the station, a weighing hopper is arranged on the station at the bottom of the storage hopper, and a first discharging opening is formed in the bottom of the storage hopper; according to the invention, the storage hoppers in the plurality of stations annularly surround the platform and uniformly distribute materials, and the planetary dead-corner-free stirrer and the closed high-speed stirring are arranged below the storage hoppers, so that powder materials can be mixed more uniformly, the product performance is more stable, and meanwhile, a worker on the platform can switch the stations only by slightly turning around, so that the working efficiency is improved. The invalid movement space of operators is reduced to the maximum extent, the physical output of workers is reduced, and the production efficiency is improved.

The utility model relates to a lower sliding plate brick and lower nozzle brick matching mechanism for a steel seepage prevention steel ladle, which is characterized in that a sliding plate cavity and a nozzle sleeve which are communicated with each other are arranged in a lower die frame, the lower sliding plate brick is sleeved in the sliding plate cavity in a matched manner, the lower nozzle brick is fixedly sleeved in the lower nozzle sleeve, and the lower nozzle brick and the lower sliding plate brick are butted with each other; an annular positioning table coaxially corresponding to a steel flowing hole is arranged on the surface of the lower nozzle brick, an annular auxiliary groove is formed in the outer side of the annular positioning table, a plurality of steps are arranged at an upper end opening of the lower nozzle brick and matched with the annular positioning table in size, and fire clay is arranged between the plurality of steps and the annular positioning table and in the annular auxiliary groove. According to the utility model, the bonding area of fire clay is extended, and the fire clay can be embedded into the bodies of the lower nozzle brick and the lower sliding plate brick through the mutually corresponding annular partition grooves, so that the contact area and the bonding strength of the fire clay between the lower nozzle brick and the lower sliding plate brick are improved, the effect of resisting shear stress is better, the steel seepage prevention effect is effectively improved, and the maintenance frequency is reduced.

The utility model discloses a stirring device for fire clay production, including bottom plate, still include: the cover, box, handle, discharge hopper, moving wheel, support frame, overturning subassembly, stirring subassembly, the upside fixed connection of bottom plate support frame, the stirring subassembly of mixing of stirring of fire clay raw material is connected to the box, the utility model discloses open the cover, pour the fire clay raw material and additive of proper amount needing stirring into the box, and close the cover, through stirring subassembly, make the material in the spiral blade axle to the box and mix and stir, make the additive evenly dispersed in the fire clay raw material, to ensure that its performance fully plays, make each component in the fire clay raw material can better combine, when the fire clay is stirred evenly, open the cover, through overturning subassembly, make the box dump, make the fire clay in the box and discharge through the discharge hopper, and the spiral blade axle can also assist the discharge, make the fire clay in the box and discharge smoothly.

The utility model discloses a special tool for kneading and pressing arch bricks during masonry. The special tool comprises a working plate and a bottom plate which are horizontally arranged, the upper portion of the plate face of the bottom plate is rotationally connected with a rotating rod through two nuts, a pressing rod is arranged on a rod body of the rotating rod, and one end of the pressing rod is connected with the working plate. A connecting plate is further arranged on the upper portion of the plate face of the bottom plate, and the connecting plate is connected with a positioning plate used for enabling the to-be-built arch bricks to be flush with the adjacent arch bricks. The device is simple in structure and convenient to use, fire clay between bricks can be easily and uniformly kneaded and pressed, the masonry quality is ensured, meanwhile, the masonry personnel are prevented from being too tired, and the construction efficiency is improved.

This invention provides a method for stabilizing beryllium in lepidolite leaching residue, belonging to the field of lepidolite residue treatment technology. The method comprises the following steps: mixing lepidolite leaching residue with clay powder in a specific ratio, adding water, and pressing the mixture into bricks; firing the bricks in a muffle furnace; and then crushing, grinding, and testing the leaching toxicity of the fired clay bricks. This invention directly uses lepidolite leaching residue as raw material to prepare waste residue that can be safely discharged. It has low production costs, not only achieving resource recycling but also effectively stabilizing the excessive beryllium leaching toxicity in the residue. Furthermore, the resulting clay bricks can possess other excellent properties, meeting industry standards for waste residue discharge.

The invention relates to a refractory clay front apron sink with integrated ledge and self-edging features, in particular to a lower mount front apron sink, comprising: a sink having a first side wall, a second side wall, a front wall, and a rear wall; a rim disposed at a top portion of the pool and extending outwardly in a substantially horizontal orientation to form a continuous flat surface for mounting against an underside of the horizontal table top; an apron coupled to the pool, comprising: a right end portion extending on the right side of the rim and a left end portion extending on the left side of the rim such that the apron is wider than the pool; a front face extending vertically below the rim; and a rear face opposite thereto, the rear face configured to engage a vertical surface of the cupboard when the rim is mounted to abut the horizontal worktop, the apron board being hollow and defining an apron board cavity located between the front face and the rear face of the apron board.

To provide a three-dimensional printing forming mortar that has properties suitable for printing and a viscosity that ensures good stability of the mortar extruded from a print head, that has sufficient compressive strength, that has low shrinkage, that has high expansibility, that has low CO2 emission, and that uses a fired clay as a main component.SOLUTION: A three-dimensional printing forming mortar composition according to the present invention comprises: a cement; 10% to 50% of fired clay with respect to the dry weight of a binder; 2% to 5% of an expanding agent containing calcium oxide and calcium sulfate with respect to the dry weight of the mortar; and an additive or a mixture.SELECTED DRAWING: Figure 1

The present invention relates to the technical field of refractory materials, and provides a tundish thermal insulation refractory material, which comprises the following raw materials by weight: 5-40 parts of alumina hollow spheres, 5-40 parts of hollow ceramsite, 5-30 parts of waste clay bricks, 10-20 parts of flint clay powder, 1-5 parts of refractory clay, 5-20 parts of andalusite powder, 5-20 parts of refractory cement, 0.1-0.5 part of a water reducing agent, 0.1-0.5 part of melamine, 0.5-1 part of alum, and 0.2-0.3 part of benzamidoxime. Through the technical scheme, the problem of insufficient strength of the refractory material for heat preservation of the tundish in related technologies is solved.

The application discloses a kind of detection devices for the internal humidity of fire clay, including support, multiple humidity detection sensors and control end, the support is T-shaped structure, wherein the horizontal bar of support upper end is cylindrical structure, inside hollow structure, the longitudinal rod of support is also hollow structure, both inside communicate, multiple humidity detection sensors are installed on the horizontal bar and longitudinal rod of support, humidity detection sensor is installed the support is fixed in fire clay, the control end is fixed box structure, controller and power supply are arranged in this fixed box, fixture is arranged on the side surface of fixed box, it is fixed on longitudinal adjusting rod by fixture, the controller is connected with multiple detection sensors by connecting line, so that the controller can receive the humidity value in multiple humidity detection sensors, so that worker accurately knows the drying condition inside fire clay, can remind worker to replace fire clay in time.

The invention discloses a preparation process of fire clay for magnesia carbon brick masonry, and relates to the field of refractory materials. The fire clay for masonry of the magnesia carbon bricks comprises the following raw materials in parts by weight: 35-45 parts of magnesia particles, 10-20 parts of magnesia fine powder, 5-10 parts of light calcined magnesia, 10-12 parts of modified graphite, 7-9 parts of modified furan resin, 1-1.5 parts of silicon powder, 2-3 parts of aluminum powder, 0.5-0.7 part of carbon fibers, 1.4-1.8 parts of a curing agent and 5-7 parts of a diluent. The synthesized modified graphite is a grafted compound of nano titanium dioxide containing ether bonds and furan rings and zirconium carbide coated crystalline flake graphite; the synthesized modified furan resin is obtained by carrying out dehydration reaction on an alcoholic hydroxyl product containing fluorenone, thioether and naphthylaniline and furan resin. The fire clay disclosed by the invention has excellent normal-temperature / high-temperature fracture-resistant bonding strength and thermal shock resistance and long service life.

1. The name of the design product: packaging box (fire clay moxa moxibustion paste). 2. The use of the design product: for product packaging box. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: front view.

The utility model belongs to the technical field of removal of refractory mortar on the surfaces of waste aluminum silicon carbide bricks, and discloses a device for removing refractory mortar on the surfaces of waste aluminum silicon carbide bricks, which is characterized in that a linear module is horizontally and fixedly arranged on the upper part of a fixed connecting plate close to the rear side; the right end of the fixing plate is fixedly connected with the left side face of the upper portion of the linear module. The left end of the fixing plate is fixedly connected with the lower portion of the right side of the removing device. The clearing device is correspondingly arranged at the rear position of the upper portion of the chain conveyor. The waste aluminum silicon carbide brick surface fire clay polishing and cleaning device has the advantages that through automatic matched control over the chain conveyor, the linear module, the cleaning device and the polishing disc, automatic polishing and cleaning of waste aluminum silicon carbide brick surface fire clay are achieved, labor cost input is reduced, and the polishing and cleaning efficiency of the waste aluminum silicon carbide brick surface fire clay is improved.

The utility model belongs to the technical field of continuous casting of ferrous metallurgy, and discloses a nozzle for continuous casting. The nozzle for continuous casting comprises a steel shell, an outer-layer fire-resistant body, inner-layer fire clay and an inner-layer fire-resistant body which are sequentially arranged from outside to inside, the outer-layer fire-resistant body is fixedly connected to the inner side of the steel shell, the outer-layer fire-resistant body and the inner-layer fire-resistant body are bonded and fixed through the inner-layer fire clay, and a steel pouring channel is formed in the inner-layer fire-resistant body. According to the nozzle for continuous casting, when the inner-layer refractory body cracks and loses efficacy, the inner-layer refractory body can be replaced, so that the service life of the nozzle for continuous casting is prolonged, consumption of refractory materials can be reduced by only replacing the inner-layer refractory body, emission of solid waste is reduced, and the requirement for a high-cost steel shell is lowered; and the product cost is greatly reduced.

The application relates to the technical field of refractory materials, and discloses a kind of intermediate ladle heat preservation refractory materials, including the following weight parts component raw materials: alumina hollow ball 5~40 parts, hollow ceramic 5~40 parts, waste clay brick 5~30 parts, coke spar powder 10~20 parts, refractory clay 1~5 parts, andalusite powder 5~20 parts, refractory cement 5~20 parts, water reducing agent 0.1~0.5 parts, melamine 0.1~0.5 parts, alum 0.5~1 part, benzamide oxime 0.2~0.3 parts.Through the above technical scheme, the problem of insufficient strength of the intermediate ladle heat preservation refractory material in the related art is solved.

The utility model discloses a casing sliding plate brick with a positioning device on the back surface, which comprises a sliding plate brick body and a steel shell, the sliding plate brick body is mounted in the steel shell, fire clay is filled in a gap between the sliding plate brick body and the steel shell, a positioning bulge is convexly arranged on a fire clay combined plate surface, adjacent to the steel shell, of the sliding plate brick body, and the positioning device is arranged on the positioning bulge. The positioning protrusions are located between the sliding plate brick body and the fireclay combination inner surface of the steel shell, and the free ends, away from the sliding plate brick body, of the positioning protrusions make contact with the fireclay combination inner surface. According to the sliding plate brick, the bonding strength of the sliding plate brick and fireclay is increased through the positioning protrusions arranged on the back face of the sliding plate brick, meanwhile, the positioning protrusions play a role in positioning and supporting in the shell loading operation, the thickness of the fireclay is convenient to control, and the labor efficiency and the production stability of the shell loading operation are improved.

The utility model discloses a kind of ground wire through floor waterproof metal protection pipe, it is related to building electromechanical lightning protection and grounding technical field, including bottom plate, fixed hole, fixed iron nail, ground wire through square hole, metal protection pipe, waterproof ring wing, bolt hole, bolt, jumper yellow-green bicolour line and ground wire;Fixed hole is set in bottom plate edge;Ground wire through square hole is set on bottom plate, and penetrates bottom plate;Metal protection pipe is welded on bottom plate, and welded waterproof ring wing, bolt hole and bolt are equipped on metal protection pipe upper portion;Ground wire passes through metal protection pipe by ground wire through square hole, and inlay fills fire clay, bolt hole and bolt are equipped on ground wire;Jumper yellow-green bicolour line is effectively fixed on metal protection pipe and ground wire by bolt hole and bolt, forms through guide.The utility model can effectively solve that ground wire is easily damaged or dropped by accidental impact, and the periphery of protection pipe is easily leaked, fireproof plugging is not strict, and the problems such as pre-buried positioning are not accurate.

The invention discloses a high-performance aluminum oxide ceramic substrate and a preparation method thereof, and the high-performance aluminum oxide ceramic substrate comprises the following components in parts by weight: 80-90 parts of ceramic balls, 8-15 parts of aluminum oxide, 0.1-05 parts of calcined talc, 0.1-0.3 part of white fire clay, 0.1-0.3 part of lanthanum oxide, 0.1-0.2 part of strontium carbonate and 7-8 parts of water. By optimizing the proportion of components such as the ceramic balls and aluminum oxide and the sintering process, the sintering temperature is lower than that of a traditional sintering mode, energy is saved, the product performance index is good, and the stability is high.

The invention relates to the field of explosion-proof switch shells and manufacturing processes, in particular to a coal mine underground ceramic lining explosion-proof switch shell and a manufacturing process, the coal mine underground ceramic lining explosion-proof switch shell comprises an outer layer and a lining, the lining comprises the following materials: clay, feldspar, quartz, calcium oxide powder and fiber; the raw materials are prepared according to the following parts by weight. The ceramic tile is prepared from, by weight, 30-50 parts of clay, 20-30 parts of feldspar, 20-30 parts of quartz, 5-8 parts of calcium oxide powder and 5-8 parts of fibers. The shell is of a double-layer structure, the insulating ceramic lining and the steel shell are combined to form a good power supply switch explosion-proof shell, the lining is formed by firing clay, feldspar, quartz, calcium oxide powder and fibers, and the fibers are composed of 95% of alumina refractory fibers and 5% of polycrystalline fibers, so that the manufactured ceramic lining is high in fire-resistant temperature and good in heat insulation performance. The explosion-proof insulating ceramic overcomes the defect of high brittleness of ceramic, has excellent explosion-proof performance and insulating performance, and has extremely high stability when being used in flammable and explosive coal mines.

The invention provides a split type partially reusable ladle collector nozzle and a preparation method, the split type partially reusable ladle collector nozzle comprises a cover plate, an inner core, an outer sleeve and a steel shell, the steel shell is fixedly sleeved outside the outer sleeve, the inner core is fixed inside the outer sleeve through fire clay bonding, and the cover plate is fixed at the upper end of the outer sleeve through fire clay bonding and is flush with the upper end face of an inner cylinder. Compared with the prior art, the split type partially-recycled steel ladle collector nozzle and the preparation method have the beneficial effects that the remaining part of the used steel ladle collector nozzle can be recycled on the premise that the service life is not affected. According to the split type steel ladle collector nozzle, the cost can be reduced by more than 50%.

The present invention discloses a fixed base for a modular building wall panel, which comprises a base. The front surface of the base is fixedly connected with an exterior wall panel, and the rear surface of the base is fixedly connected with a precast interior wall panel. A rabbet groove is integrally formed on the front surface of the base, and a rabbet is integrally formed on the rear surface of the exterior wall panel. A fixed sleeve is integrally formed in the middle of the front surface of the base; through modular assembly, on the premise of reserving cement irrigation and sealing, the exterior wall panel, the connecting device and the precast interior wall panel are firmly connected by using a structure of three groups of flanges and concave grooves, saving the time of positioning and leveling and making the positioning more accurate; by using the structure of a spring and a clamping block in cooperation with the second connecting shell, the overall mechanism has the ability of anti-stroke self-locking during the installation process, increasing the safety connection degree of the equipment; through the cooperation of the fire clay block and the fangs, the exterior wall panel, the connecting device and the precast interior wall panel have the fixing ability after the installation is completed.

The utility model relates to a mud blocking structure for a blast furnace long-time damping-down tuyere, and belongs to the technical field of blast furnace ironmaking production in the metallurgical industry. According to the technical scheme, the device comprises a blast furnace air supply blowing pipe (1), a blast furnace tuyere large sleeve (2), a blast furnace tuyere medium sleeve (3) and a blast furnace tuyere small sleeve (4), the blast furnace tuyere large sleeve (2), the blast furnace tuyere medium sleeve (3) and the blast furnace tuyere small sleeve (4) are matched with the blast furnace air supply blowing pipe (1), and porcelain front end fire clay (7), porcelain (6) and porcelain rear end fire clay (5) are sequentially pressed into the blast furnace tuyere small sleeve (4). And the boundary dimension is matched with the size of an inner hole of the blast-furnace tuyere small sleeve (4). The device has the beneficial effects that the blocked tuyere can be poked at one time after the blast furnace supplies air, the success rate is 100%, time and labor are saved, and the labor intensity of workers when poking the tuyere is greatly reduced.