1768results about How to "Improve production environment" patented technology

The invention discloses a dry sand maker which comprises a hollow crushing cavity (2). A hollow dust removal cavity (5) is arranged under the hollow crushing cavity (2); the upper end of a feeding channel (6) is hermetically connected with a feeding mouth (22) and the lower end (61) thereof is positioned in the dust removal cavity (5) on which an air vent (7) is also arranged; an air duct (8) is arranged in the dust removal cavity (5); the lower end (61) of the feeding channel (6) is staggered with the upper end (81) of the air duct (8) in the horizontal direction; the bottom surface of the dust removal cavity (5) is provided with an outlet (51); a dust absorption component is hermetically connected with the lower end (82) of the air duct (8) or the air vent (7) after passing through the outlet (51). The invention also provides a method for drying sand making simultaneously. By adopting the dry sand maker, the drying sand making can have the advantages of high production efficiency and low environmental pollution.

The invention discloses a processing method for comprehensively recovering high manganese asbolite, belonging to the field of hydrometallurgy. In the processing method, the high manganese asbolite is processed through four processing steps comprising (1) reduction leaching, (2) primary cleaning, (3) manganese and cobalt separation and (4) extraction separation to obtain a product manganese carbonate, copper sulfate, nickel carbonate or cobaltous sulfate. The processing method has the advantages that the source of raw materials is wide, the process and equipment are simple, the operation is stable, the energy consumption is low, the production cost is low, the practicability is wide, and the economic effect and the society effect are obvious.

The invention discloses a method and a device for forming a high-performance composite material structural member through a microwave-pressure tank. The device mainly comprises a cooling system (2), a gas storage tank (6), microwave transmission lines (9), microwave radiation antennas (10), a pressure safety valve (11), a polygonal multi-mode resonant cavity (14), a microwave generation and measurement module (17), a temperature measurement and control module (18), a vacuumizing and control module (19), a pressure measurement and control module (20), a power supply module (21), a material platform (23), a forming mold (24), a temperature sensor (26) and a tank body (28). The equipment is microwave forming equipment for the high-performance composite material structural member; a non-solidified composite material structural member is put into the equipment, and the high-performance composite material structural member can be quickly formed by technologies of vacuum bag vacuumizing, gas pressurization and microwave heating; the quality and the performance of the composite material structural member can be improved.

The invention relates to an ultraviolet curing anti-drag paint in steel pipes. Epoxy acrylate and polyester acrylate are combinedly used as prepolymers, and phosphate-modified acrylate resin is used as an adhesion promotor, thereby greatly increasing the adhesion; a mixture of two or three of tripropylene glycol diacrylate, isobornyl acrylate and ethoxylated trimethylolpropane triacrylate is selected as an active monomer, and multiple functional group monomers are selectively added for compounding, thereby simultaneously satisfying curing speed, hardness, adhesion, flexibility and other requirements; multiple initiator compounding systems are adopted so as to simultaneously implement curing on the surface layer and deep layer; the paint provided by the invention has favorable mechanical properties and chemical resistance on a steel substrate; after coating, the surface is very smooth, has favorable anti-drag effect, can effectively enhance the salt fog resistance and corrosion resistance of the coating and the transmission efficiency of the pipeline, and can be widely used in anti-drag corrosion prevention in transmission pipelines in the fields of oil transmission, gas transmission, water supply and drainage, and the like.

The invention belongs to complex material shaping technics and the moulds. The technics includes that inject the resin through the injecting system into the soft mould to expand, close the injecting port after the determined resin is all injected and evacuate the mould cavity to let the resin fills the unfilled sections at the edge so to fill the whole cavity with resin. The mould includes upper mould which is ferroglass soft mould, lower mould which is ferroglass hard mould. Injecting and shaping evacuating ports are on the upper mould while equal flow canals and shaping vacuum circuit and fixing vacuum circuit are on the lower mould. Its advantages are that it is environmental, of low cost, and is able to shaping with products of large area and thin walls.

The invention discloses an L-shaped full-closed environment-friendly hot galvanizing production method. The method is characterized in that: acid washing step-by-step automatic operation is implemented by adopting a mechanical hydraulic transmission manner, namely an acid washing workpiece automatic conveying system horizontally or vertically lifts to automatically convey workpieces to be galvanized to specified anti-collision acid washing tanks for acid washing and dust removing treatment step by step according to the multi-tank acid washing technological requirements, and the whole acid washing process is sequentially, progressively and automatically finished according to the technological requirements. The L-shaped full-closed environment-friendly hot galvanizing production method is pollution-free, environment-friendly, low in energy consumption, mechanical and automatic, and has the characteristics of full closure and integration of reclamation and treatment; and by the method, acid washing automation is realized, the labor intensity is furthest lightened, the production efficiency is improved, and the problem of pollution is solved.

The invention provides a method for continuous acid pickling purification of quartz sand. The method comprises the steps of heating, material loading, acid pickling, deacidifying, water washing, acid recovering and tail gas treatment. The invention also provides a device for implementing the method to perform continuous acid pickling purification on quartz sand; the device comprises a heating unit, a storage unit, a drum mixer, a water washing unit, an acid recovery unit and a water-jet vacuum unit; spiral line plates are arranged on the inner wall of a drum of the drum mixer, 20-60 lifting plates are mounted between two adjacent spiral line plates, two adjacent lifting plates and the spiral line plates on the two sides thereof are combined to form a lifting bucket, a driven gear is arranged on the outer wall of the drum of the drum mixer in a sleeved manner, a charging opening and a discharging opening are formed in the two ends of the drum, and spiral line plates are mounted on the inner walls of both of the charging opening and the discharging opening. The method and the device are capable of realizing sufficient acid pickling purification of the quartz sand by virtue of continuous automatic feeding, turning over and discharging of the quartz sand and acid liquor; as a result, the production efficiency and the quality of product are improved, and the acid is recycled and absorbed by use of alkaline so that the production cost is reduced, and meanwhile, the environmental pollution is reduced.

A spheroidizing treater for producing spheroidal graphite cast iron is carried out by adjusting bearing rod head and dam seam and controlling iron-water and nodulizer contact. It adopts waste-heat one-step method and controls spheroidizing reactive time and strength; the spheroidizing agent consists of Mg<=20%, RE<=3% and Si<=65%. It's simple, cheap and can be used for large-scale continuous production.

The invention relates to a processing method of an annular gear of a thin-wall member, comprising the following steps of: selecting a seamless steel tube as a raw material, blanking, sawing the seamless steel tube into a blank, carrying out thermal treatment, normalization process and isothermal annealing process, finely turning the blank, turning the thermal-treatment blank into the exterior geometric size of a product by using a lathe, processing internal teeth, and finally carrying out thermal treatment. The invention has the advantages of simple process, steel and electric energy saving, reduction of steel consumption and no forging, improves production environment, shortens manufacturing procedures, reduces manufacturing cost and improves the utilization rate of the materials.

Production of quick-dissolving powdered water gas slurry is carried out by mixing various additive solutions with raw material coal proportionally, delivering mixed materials into ball mill, and dry grinding to obtain the final product. It has better stability, shorter working time, less producer and consumption and higher efficiency.

The invention discloses a clutch facing piece for an automobile and a production method thereof. The production method comprises the following steps: stirring 10-20% of water soluble phenolic resin, 0.5-1.5% of alumina, 4-8% of crystalline flake graphite, 0.6-1.2% of antimony trisulfide, 6-10% of ground calcium carbonate, 8-12% of chalcopyrite powder, 6-10% of magnetite powder, 3-8% of vermiculitepowder, 12-18% of barium sulfate, 6-15% of powder nitrile-butadiene rubber and water according to parts by weight of each component, preparing suspension, then dipping 15-25% of basalt fibre and obtaining a product by drying, winding, pressing, heat treatment and mechanical processing. By using the invention, the temperature resistance and the wear resistance of the clutch facing piece for the automobile are enhanced, a phenomenon of dust raising in the production and use process is reduced, and the product is more affinitive to the environment.

The invention provides a wear resistant cast iron roll collar used for aligning a steel rail and a preparation method, which belong to the technical field of steel rail processing. The prior wear resistant cast iron roll collar used for aligning the steel rail has the defects of easy occurrence of cracks, complicated manufacture process and the like in quenching process. The method is to compound a wear resistant outer layer with a magnesium iron inner layer into an integral roll collar by centrifuge casting, wherein the wear resistant outer layer comprises the following ingredients in weight percentage: 3.0 to 3.4 percent of C, 1.5 to 2.0 percent of Si, 1.2 to 1.6 percent of Mn, 0.2 to 0.4 percent of Nb, 0.03 to 0.06 percent of RE, 0.03 to 0.06 percent of Mg, 2.5 to 3.0 percent of Ni, 0.4 to 0.6 percent of Mo, 0.8 to 1.2 percent of Cu, 1.5 to 1.8 percent of Cr, 1.0 to 1.4 percent of V, 0.03 to 0.08 percent of B, 0.002 to 0.005 percent of Te, 0.01 to 0.03 percent of Ba, less than or equal to 0.06 percent of P, less than 0.03 percent of S, and the balancing being Fe. The invention has the advantages of high hardness of the roll collar, good wear resistance, simple production process and low production cost.

The invention relates to a fresh bone processing method with high-pressure extraction combined with biological enzymolysis, which effectively solves the problems of high energy consumption, easy pollution and low resource utilization during the fresh bone processing so as to meet the demand on fresh bone products by people. The invention has the technical proposal for solution that the heating, extraction and enzymolysis are combined to process the fresh bones which are classified into different grades for fine grinding and treated with enzymolysis, heat reaction, emulsification, enzyme deactivation and sterilization to obtain fresh bone extracts. The processing method of the invention is simple without crushing the fresh bones and can ensure a bone resource utilization rate of 100 percent and optimize the production environment; in addition, the produced products have high concentration, obvious flavor property, mellow taste and natural nutrition, so the fresh bone processing method is a great creation in the fresh bone processing and has great economic and social benefits.