73results about How to "No cost reduction" patented technology

The invention discloses a method for preparing iron-free aluminum sulfate and superfine active white carbon black with bauxite, crushing the bauxite and removing dissociative iron source by magnetic separation, and then reacting with vitriol; adding in dithiocarbamate with medium and high molecular weights and multiple functionalities to remove iron ions by solid phase reaction, and filtering, where the filtrate is iron-free aluminum sulfate; washing filter residue with alkaline water solution, surface active agent water solution, and tap water, respectively, to neutralize it, then after reacting with alkali, filtering, making filtrate, inorganic acid and active particles react mutually, filtering, water-washing, and drying to obtain the superfine active white carbon black. And the method has simple process, and low cost, applied to industrialized production, where the iron content of the prepared aluminum sulfate is less than 15 ppm, and the grain size, specific surface area, tensile strength, added value of the superfine white carbon black are 0.5-5 mum, greater than 200 m2 / g, higher than 17.0 MPa, and high, respectively.

The invention provides a method for preparing a paving asphalt concrete additive through direct liquefaction of residues with coal. The paving asphalt concrete additive is prepared through the following steps: adding an appropriate amount of plasticizing agent, coupling agent and rubber powder during direct liquefaction of the residues with the coal, high-temperature melting, mixing and the like. When being added, the additive can substitute 10-40 percent of total asphalt in the paving asphalt concrete without changing the proportion of the components of the paving asphalt concrete, and can not affect the use performance of the road adopting the paving asphalt concrete, but can improve part of the performances of the road. Moreover, the invention can reduce the cost of the paving asphalt concrete, and realize the purposes of transforming the residues into valuable resources, saving the energy and reducing the emission.

The invention discloses a duplex stainless steel with pitting corrosion resistance and favourable cold temperature flexibility and a manufacturing method thereof. The duplex stainless steel comprisesthe following components in mass percentage: 0.01-0.10% of C, 0.2-1.0% of Si, more than 0% and less than 1.5% of Mn, 20.0-22.0% of Cr, 1.8-4.0% of Ni, 0.08-0.2% of N, more than 0% and less than 0.5% of Mo, less than or equal to 1.0% of one or more than one of W and Cu and the balance Fe and inevitable impurities. The invention controls Mn content below 1.5% until zero and simultaneously adjusts the content of elements of N, Ni and the like to ensure that steel has high strength, favourable corrosion resistance and favourable impact toughness at room temperature and low temperature when steel contains no or small amount of noble element Mo; meanwhile, the duplex stainless steel has low cost and small hot working difficulty, can be largely applied in the fields of buildings along the coast,petrochemical industry and the like and can replace 304 austenitic stainless steel of which the nickel content is above 8% at room temperature and lower temperature.

The invention provides a method for preparing a paving asphalt concrete additive through direct liquefaction of residues with coal. The paving asphalt concrete additive is prepared through the following steps: adding an appropriate amount of plasticizing agent, coupling agent and rubber powder during direct liquefaction of the residues with the coal, high-temperature melting, mixing and the like.When being added, the additive can substitute 10-40 percent of total asphalt in the paving asphalt concrete without changing the proportion of the components of the paving asphalt concrete, and can not affect the use performance of the road adopting the paving asphalt concrete, but can improve part of the performances of the road. Moreover, the invention can reduce the cost of the paving asphalt concrete, and realize the purposes of transforming the residues into valuable resources, saving the energy and reducing the emission.

The invention discloses a high-fire-retardant polyvinyl chloride environmental-friendly plastic which comprises the following raw materials: polyvinyl chloride, a methyl methacrylate-butadiene-styrene copolymer, acrylonitrile-butadiene-styrene copolymer reclaimed materials, ethylene-propylene-diene monomer rubber, epoxy resin reclaimed materials, stearic acid, zinc stearate, calcium stearate, polyethylene reclaimed materials, phenolic resin reclaimed materials, a modified nanofiller, expanded graphite, ammonium polyphosphate, bentonite, a silane coupling agent, epoxidized soybean oil, dioctyl adipate, pentaerythritol, diphenyl isooctyl phosphate, 1,2-ethylenetetra(2-chloroethyl)diphosphate and tricresyl phosphate. The high-fire-retardant polyvinyl chloride environmental-friendly plastic provided by the invention is excellent in fire-retardant property and high in heat resistance, the added waste plastic reclaimed materials serve as raw materials, the cost is saved, and the environmental protection property is high.

The present invention provides a special powder material for polyvinyl chloride drainage pipe and is made of polyvinyl chloride, stabilizer, processing modifier, plasticizer, stearic acid, paraffin wax, pigment and powder of 6000-order inorganic material and so on. The raw materials after being weighed are mixed well by a high mixing machine to prepare special powder material for polyvinyl chloride drainage pipe; or the special powder material for polyvinyl chloride drainage pipe is extruded by an extruder for granulation to prepare the special particle material for polyvinyl chloride drainage pipe. The special material for polyvinyl chloride drainage pipe is then molded by a plastic injection molding machine to prepare drainage pipes of various specifications.

The invention relates to a composite calcium carbonate modified PVC (polyvinyl chloride) rolling film and a preparation method thereof. The preparation method comprises the preparation of composite calcium carbonate and the preparation of the composite calcium carbonate modified PVC rolling film. According to the composite calcium carbonate modified PVC (polyvinyl chloride) rolling film and the preparation method thereof, the composite calcium carbonate is formed by mixing active water-ground calcium carbonate and active nano-calcium carbonate, the production process is simple, the preparing costs are low, the prepared composite calcium carbonate is high in activating rate, and the needed coupling agents are small, can coat the surface thin layers of particles evenly and stably and well control the particle size of the processed particles. When the composite calcium carbonate which is prepared by mixing the active water-ground calcium carbonate and the active nano-calcium carbonate is used for preparing the PVC rolling film, the agglomeration of calcium carbonate particles is avoided, and the prepared rolling film has good mechanical properties.

The invention discloses a culture compost for growing pleurotus eryngii by polygonum cuspidatum residues and a preparation method thereof. The culture compost is applicable for growing pleurotus eryngii in a liquid strain, and is prepared from polygonum cuspidatum residues, corncob, sawdust, bran, corn flour, bean pulp, lime and gypsum according to a ratio. The preparation method comprises the following steps: A, pre-treatment of a substrate, piling and fermenting polygonum cuspidatum residues and sawdust respectively for a week in advance, pre-wetting corncob by water, standing in air for later use, the corn flour, the bran and the bean pulp are all dry products, and packaging for later use; and B, weighing polygonum cuspidatum residues, sawdust, corncob, corn flour, bean pulp, lime and gypsum according to the ratio, mixing uniformly with water, stirring mechanically for 1h, adjusting the water content to 60-65%, wherein the pH (potential of hydrogen) is 6.5-6.8. By the factorization of the pleurotus eryngii, the production period is shortened greatly, and the cost is reduced; and the polygonum cuspidatum residues are the wastes of polygonum cuspidatum production, the resource is rich, the particle size is medium, the water retention property is high, through using the polygonum cuspidatum residues to grow pleurotus eryngii, the waste is turned into wealth, the waste of resource is reduced, and the economic benefit is improved.

The present invention relates to a permanent magnet machine comprising a stator (301) and a rotor (305), the rotor (305) being adapted to rotate relative to the stator (301), the rotor (305) comprising a plurality of permanent magnets (307) separated in the circumferential direction from each other by axial Iy extending rotor pole pieces (309) for concentrating the magnetic flux from said permanent magnets (307), the stator (301) having a structure that defines axial limits of an air gap between the stator (301) and the rotor (305) for communicating magnetic flux between the stator (301) and the rotor (305), characterized in that at least some of the permanent magnets (307) extend axially outside the axial limits of the air gap as defined by the stator structure.

The invention relates to a high-torque-density asymmetrical rotor structure. The rotor structure comprises a one-way displacement asymmetrical rotor structure and a two-way displacement asymmetrical rotor structure. Ferrite permanent magnets and neodymium-iron-boron permanent magnets are distributed on a rotor, the ferrite permanent magnets are distributed in a spoke shape, and the neodymium-iron-boron permanent magnets are distributed in a linear shape and arranged on the outer circle of the rotor. The axis of each neodymium-iron-boron permanent magnet of the one-way displacement structure anticlockwise deflects by an angle alpha from the central line of the ferrite permanent magnet adjacent to the neodymium-iron-boron permanent magnet of the one-way displacement structure; the neodymium-iron-boron permanent magnets of the two-way displacement structures clockwise and anticlockwise rotate by an angle beta and an angle gamma respectively. By means of the hybrid permanent magnet structure, the peak hybrid permanent-magnet torque and the peak reluctance torque reach the maximum at the same time at a same current angle, and the permanent-magnet utilization rate and the output torque of a motor are improved; the air-gap flux density waveform is effectively improved, the cogging torque and the torque pulsation are reduced, and the core loss and the eddy-current loss are reduced.

The invention discloses rubber / polyvinyl butyral mixed glue, and belongs to the technical field of rubber products. The mixed glue is prepared according to the following method: equally dividing 95 to 50 parts of rubber accounted in weight parts into two parts, and mixing the two parts of rubber at the temperature of 60 to 160 DEG C; after mixing, adding 5 to 50 parts of wasted polyvinyl butyral membranes and 0 to 20 parts of bulking agent into one part of rubber to continue mixing; and finally, adding the other part of rubber into the mixed rubber for alloying after mixing to obtain the rubber / polyvinyl butyral mixed glue. According to the invention, the mixed glue has a simple manufacturing process, and compared with the corresponding rubber products obtained through vulcanizing pure rubber, the vulcanized glue products obtained through vulcanizing the mixed glue are not lowered in comprehensive property, and in addition, the hardness and tearing strength of the rubber / polyvinyl butyral mixed glue products are improved remarkably. The mixed glue provided by the invention can effectively reduce the cost of rubber products, broaden the application scope of the wasted polyvinyl butyral membranes, and turn waste into wealth.

The invention discloses a steel for a sucker rod, and a making method of the sucker rod, and belongs to the field of petroleum exploitation apparatuses. The steel for the sucker rod comprises carbon, silicon, manganese, chromium, molybdenum, aluminum, copper, phosphorus, sulfur, nickel and iron. The making method comprises the following steps: machine-shaping the steel for the sucker rod, forging the steel, quenching and tempering the forged steel, carrying out heat straightening to obtain a sucker rod blank, carrying out shot blasting treatment on the surface of the sucker rod, and processing a screw thread on the surface of the sucker rod blank to make the sucker rod. Proper amounts of elements are added to iron in the steel for the sucker rod, so the corrosion resistance and the strength of the sucker rod are improved, especially the corrosion resistance to hydrogen sulfide and chloride ions is improved, thereby the life of the sucker rod is prolonged, and the petroleum exploitation cost is reduced. The making method adopts an aqueous solution of sodium chloride as a medium to cool, so the sucker rod made in the invention is uniformly quenched, and the quenching cracks of the sucker rod are reduced.

The invention belongs to the field of microbial technology application, and particularly relates to a method for improving the hydrogen yield of hydrogenogens. The hydrogenogens strains are inoculatedinto a culture medium containing 2.5 to 20 mmol / L ferriferous oxides; through dark fermentation culture, the great-quantity hydrogen generation of the hydrogenogens strains can be realized. Through the addition of ferrihydrite and magnetite, the growth of hydrogen production clostridium C.pasteurianum is promoted; the C.pasteurianum substrate conversion efficiency is accelerated; the yield of metabolite products of hydrogen gas, acetic acid and butyric acid is improved. The method provided by the invention has the advantages that the hydrogen yield of the hydrogen production clostridium is greatly improved; the theoretical support is provided for the large-scale production of microbial dark fermentation hydrogen production.

The invention provides a moving cable device of a floor-height adjustment type double deck elevator, capable of implementing steady movement of cables by simple structure, comprising a cable (7, 11) which performs an electric power supply as well as signal reception and transmission between a control unit and basket rooms (2, 3), characterized in that a cable guide mechanism (12) which is composed of a carrier frame side support plate (121a(121b)) and a carrier side support plate (122a(122b)) and arranged between upper parts of a transversal frame (la(lb)) which introduces the cable (7, 11) into a carrier frame and a carrier chamber (2(3)); the carrier frame side support plate is fixed on the transversal frame (la(lb)) and extends downwards; the carrier side support plate, extending upwards, is fixed at upper part of the carrier chamber (2(3)) and arranged to be separated from the carrier frame side support plate (121a(121b)) with specific gap so that opposite is possible; moreover, the cable (7, 11) is laid along each relative surfaces of the two support plates (121a, 122a(121b, 122b)).

The invention discloses a high-elasticity external wall coating with enhanced anti-corrosive performance of composite epoxy resin emulsion. The high-elasticity external wall coating is prepared from, by weight, 20-22 parts of methyl methacrylate, 29-31 parts of butyl acrylate, 8.5-9.5 parts of hexafluorobutyl acrylate, 4-5 parts of vinyl triethoxy silane, 0.1-0.12 part of ammonium persulfate, 2-3 parts of OP-1, proper amount of deionized water, proper amount of amino water, 1.5-2 parts of n-dodecanol ester, 8-10 parts of superfine kaoline, 3-4 parts of polyether polyol, 2-3 parts of epoxy resin, 7-8 parts of epoxy resin emulsion, and 1-2 parts of boron trifluoride diethyl etherate. The high-elasticity coating has water-based formula and is free from toxic and pollution, high in ductility, excellent in weather fastness, convenient to construct; the coating is especially suitable for the waterproof use of the external wall of the building engineering; the coating film is smooth and beautiful.

The invention discloses steel for a shield machine cutting tool. The steel for the shield machine cutting tool comprises the components of, by mass, 0.70-0.75% of C, 0.15-0.25% of Si, 0.45-0.55% of Mn, 5.00-5.20% of Cr, 2.30-2.40% of Mo, 0.50-0.60% of V, less than 0.020% of P, less than 0.005% of S, and the balance Fe and inevitable impurities. The steel for the shield machine cutting tool is manufactured by melting of an induction furnace, remelting of an electroslag furnace, three-dimensional refinement uniforming, FM forging and post-forging heat treatment. The steel has high abrasion performance, high hardness and good tenacity. Large sized carbides in a steel ingot are thoroughly fragmented by the FM forging, and existence of tensile stress in a forge piece is avoided.

The invention relates to a method for manufacturing a mounting box of a line control panel. The method includes steps of providing a galvanized plate; manufacturing the galvanized plate into a plurality of regular rectangular blocks by a plate shearing machine according to preset rules; curling edges of a first rectangular block and punching the first rectangular block to form an upper cover comprising a cover top and a cover edge integrally formed with the cover top; stretching a second rectangular block of the multiple rectangular blocks to form a bottom plate; bending a third rectangular block so that one end of the third rectangular block is connected with the other end of the third rectangular block and is snapped with the other end of the third rectangular block in a bent and hooked manner to form a hollow rectangular box body; and stamping and stretching a fourth rectangular block to form a support. The cover edge is fastened on the box body in a tightly combined mode, the edge of the box body is overlapped with the edge of the bottom plate and is fixedly curled from the outer portion of the box body to the inner portion of the box body, and the box body and the bottom plate form an accommodating cavity for accommodating the line control panel. One end of the support extends along the box body to reach the bottom plate and is fixed onto the bottom plate, and the other end of the support outwardly extends in the direction perpendicular to the box body.

The invention provides oil shale powder slag cold-pressing balls which are prepared from oil shale raw ore and adhesive, wherein, the adhesive accounts for 2-5% of the total weight and is selected from cement or self-made adhesive; the self-made adhesive is prepared from the following components in percentage by mass: 20-40% of bentonite, 20-30% of viscose glue and water; and the diameter of the cold-pressing balls is 30-60 mm, and the strength is 50-200 kg / cm2. The oil shale powder slag cold-pressing balls have the advantages that oil shale powder slags which can not enter a furnace is successfully made into oil shale powder slag cold-pressing balls and sent into the furnace for dry distillation and petroleum extraction; and the oil shale powder slag cold-pressing balls have high strength, thus greatly reducing the mining cost, saving resources and reducing pollution on the premise that the oil yield is not reduced.

The invention belongs to the field of stainless steel metal materials, and particularly relates to microalloy element Nb reinforced double-phase stainless steel and a preparation method thereof. The double-phase stainless steel is prepared from components in percent by mass including smaller than or equal to 0.03% of C, smaller than or equal to 1.0% of Si, smaller than or equal to 2.0% of Mn, smaller than or equal to 0.02% of S, smaller than or equal to 0.03% of P, 21%-23% of Cr, 4.5%-6.5% of Ni, 2.5%-3.5% of Mo, 0.03%-0.05% of Nb, 0.08%-0.20% of N and the balance Fe and inevitable impurities.According to the double-phase stainless steel, a trace of Nb element is added into 2205 double-phase stainless steel, the 2205 stainless steel has more excellent mechanical performance, meanwhile, the corrosion resistance of the 2205 double-phase stainless steel is not reduced, the cost of the double-phase stainless steel can be effectively reduced, the application range of the double-phase stainless steel is widened, the preparation method is simple, and important engineering application value and remarkable economic benefits are achieved.

The invention discloses a high-temperature-resistant oil shale powder slag cold-pressing ball. The oil shale powder slag cold-pressing ball is characterized by being prepared from 2 to 5 weight percent of adhesive, 5 to 10 weight percent of coal slurry and the balance of oil shale raw ores, and has the diameter of between 30 and 60mm and the intensity of between 50 and 200kg / cm<2>, wherein the adhesive is cement or a self-made adhesive and is prepared from 20 to 40 mass percent of bentonite, 20 to 30 mass percent of viscose and the balance of water. Waste oil shale powder slag is successfully prepared into the oil shale powder slag cold-pressing ball which is subjected to dry distillation in a furnace and is used for extracting petroleum; and the oil shale powder slag cold-pressing ball has high intensity, greatly reduces mining cost without the reduction in oil yield, saves resources, reduces pollution, has high temperature resistance, effectively prolongs the furnace cleaning period of an oil smelter and improves working efficiency.

The invention discloses an external wall elastic waterproof coating with a modified soybean protein isolate capable of enhancing adhesion force. The external wall elastic waterproof coating with the modified soybean protein isolate capable of enhancing the adhesion force is prepared from the following raw materials in parts by weight: 20 to 22 parts of methyl methacrylate, 29 to 31 parts of butyl acrylate, 8.5 to 9.5 parts of hexafluorobutyl acrylate, 4 to 5 parts of vinyltriethoxysilane, 0.1 to 0.12 part of ammonium persulphate, 2 to 3 parts of OP-10, a suitable amount of deionized water, a suitable amount of ammonia water, 1.5 to 2 parts of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, 9 to 10 parts of rutile titanium dioxide, 0.8 to 1 part of dimethyl silicone oil, 7 to 8 parts of soybean protein isolate powder, 1 to 1.2 parts of sodium hydroxide, a suitable amount of 0.1 mol / L hydrochloric acid solution, and 1 to 1.2 parts of ammonium polyacrylate. The prepared coating is used for protection of an external wall of a building, and is water-proof, stain-resistant and high in adhesion force; the adhesion force of the coating on the external wall is good, the coating does not fall off and crack easily, and is attractive and elegant, environmentally friendly, non-toxic and long in service life.

The invention discloses a preparation method of a palladium-based polyaniline coated carbon nanotube nano catalyst, wherein the preparation method mainly includes the following steps: purification ofa carbon nanotube (CNT); preparation of a polyaniline (PANI) coated carbon nanotube (PANI@CNT); and preparation of the Pd / PANI@CNT catalyst. The polyaniline coated carbon nanotube is used, and Pd nanoparticles are loaded on the surface of the PANI@CNT; the formed nano catalyst Pd / PANI@CNT has a quite good reuse performance in a Heck reaction; after reaction is carried out for 10 times, the activity is not reduced. In the prepared Pd / PANI@CNT, a large number of nitrogen-containing functional groups form coordination bonds with Pd, the bonds are quite stable and effectively inhibit the loss andagglomeration of Pd nanoparticles, and thus the cost of the catalyst is effectively reduced. In addition, the catalyst can be effectively recovered and separated, and the contamination and repurification process of the product is prevented.

A dispersing tablet of clindamycin hydrochloride palmitate and its preparing process are disclosed.

The invention discloses a modified lanthanum hexaboride heat-insulating property enhanced exterior wall acrylic high-elasticity waterproof coating. The exterior wall acrylic high-elasticity waterproof coating is prepared from the following raw materials in parts by weight: 20 to 22 parts of methyl methacrylate butyl acrylate, 29 to 31 parts of butyl acrylate, 8.5 to 9.5 parts of hexafluorobutyl acrylate, 4 to 5 parts of vinyltriethoxysilane, 0.1 to 0.12 part of ammonium persulfate, 2 to 3 parts of OP-10, an appropriate amount of deionized water and an appropriate amount of ammonia water, 1.5 to 2 parts of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, 12 to 13 parts of lanthanum hexaboride powder, 1.2 to 1.3 parts of polyvinylpyrrolidone, 0.8 to 1 part of sodium dodecyl benzene sulfonate, an appropriate amount of anhydrous ethanol, 7 to 8 parts of rutile type titanium dioxide, and 1 to 1.5 parts of sodium carboxymethylcellulose. The coating prepared by the invention has good heat insulation properties, can prevent infrared rays from entering, and further prevents heat from radiating outdoors, and has good water resistance and weather resistance after applied onto outdoor wall bodies; in addition, a prepared coating film is not easy to crack, thereby well protecting the wall bodies and prolonging the service life of the wall bodies.

The invention discloses an environment-friendly interior wall coating and a preparation method thereof. The environment-friendly interior wall coating comprises the components of 6-11 parts of modified silica sol, 30-47 parts of modified acrylate emulsion, 2-3 parts of talcum powder, 3-5 parts of anatase titanium dioxide, 3-5 parts of wollastonite powder, 1.8-2.5 parts of white carbon black, 4.8-7.2 parts of bamboo fiber powder, 5-8 parts of shell powder, 0.05-0.06 part of a wetting agent, 0.08-0.13 part of a film-forming agent, 0.1-0.15 part of a dispersing agent, 0.02-0.1 part of a defoamingagent, 0.1-0.5 part of a thickening agent and 7-12 parts of water in parts by weight. The environment-friendly interior wall coating disclosed by the invention has the advantages that the formula issimple; a natural and environmentally friendly function, a radiation resistant function, a mildew proofing and bacteriostatic function, a breathable and moisture-absorbent function and a stain-resistant function are realized; the adhesion force of a dried coating film is good, and the dried coating film can eliminate odor and regulate air humidity; in the preparation method, the production condition is simple, and the raw material loss is less; and hydroxyethyl cellulose is not needed in the preparation process.

The invention relates to an aquatic feed and in particular relates to an improved litopenaeus vannamei feed. The litopenaeus vannamei feed is prepared from the following ingredients in percentage by weight: 18-23 percent of flour, 18-24 percent of imported fish meal, 3-7 percent of shrimp head meal, 3-7 percent of beer yeast, 10-20 percent of soybean meal, 8-13 percent of fermented soybean meal, 10-15 percent of peanut bran, 1-5 percent of soybean soil, 2-6 percent of phospholipid, 1-2 percent of monocalcium phosphate, 2 percent of a prawn compound premix, 0.1-0.3 percent of Lys hydrochloride (78%) 0.05-0.15 percent of L-methionine and 0.3-0.5 percent of choline chloride (50%). The litopenaeus vannamei feed has the characteristics that the contents of protein, fat, calcium, phosphorus, Lys and Met in the feed basically remain unchanged compared with the current feed, and the cost is greatly reduced.

A method of using state unit to structure software system of TV set includes setting up state required by software of TV set; setting up state supervisor to manage said state and structuring software system of TV set.

The invention discloses light guide plate cooling equipment provided with a storing device. The light guide plate cooling equipment comprises a conveying device, upper wind drums, lower wind drums, light guide plate cooling jigs and the cooling jig storing device. The light guide plate cooling jigs carry light guide plates and run on the conveying device; the cooling jig storing device is located at the output end of the conveying device and comprises a storing box, lifting mechanisms and lifting assemblies; the storing device is used for storing the cooling jigs from the conveying device, the lifting mechanisms and the lifting assemblies are matched to gradually lift the storing box, and the cooling jigs are stored on laminated plates of the storing box. Accordingly, workers can take away the cooling jigs in the storing box at a time, so that production efficiency is improved.

The invention relates to a method and device for secondarily distributing steam-pressing bricks. Secondary distribution is realized by adopting a base material hopper and a plus material hopper, wherein the base material hopper can be made of brick making material with low cost; the plus material hopper can be made of pressed material which is attractive in appearance, so that the steam-pressing bricks with attractiveness in appearance and high added value can be pressed and the cost is effectively controlled; meanwhile, the invention also provides a wider application range and provides technical guarantee for replacing clay bricks by the steam-pressing bricks in a wider range. Base powder within the height of plug material attached to the inner wall of a die cavity is removed by using a roll bushing device, thus the thickness of the plug material is uniform and the fabric cannot be mixed with the base material. The base material in the die cavity is smoother; a transitional between the pressed fabric and the base material is remarkably thinned; the consumption of the plug material can be reduced; and on the premise without reducing the added value, the cost is further reduced.