48results about How to "Reduce internal voids" patented technology

The invention provides a battery, a battery module, a battery pack and an electric vehicle. The battery comprises a metal casing body and a plurality of pole core groups which are successively arranged and packaged in the metal casing body. The pole core groups are connected in series with one another. Each pole core group comprises at least one pole core. Each pole core group is packaged in a packaging film. The air pressure between the metal casing body and packaging films is lower than the air pressure outside the metal casing body. The air pressure in the packaging films is lower than theair pressure between the metal casing body and the packaging films. According to the invention, the sealing effect and the strength of the battery are improved.

The invention relates to a method for utilizing industrial waste silica fume to prepare industrial silicon. The method includes the following steps that S1, encryption treatment is conducted on industrial waste silica fume, then the industrial waste silica fume is mixed, blended and stirred with a reducing agent to obtain a mixed material; S2, water is added to the mixed material, stirring is performed, pelletizing treatment is performed after stirring to obtain silica fume pellets; S3, the silica fume pellets are subjected to reduction smelting at the temperature of 1600-2000 DEG C for 19-21 minutes, and industrial silicon can be obtained. The invention further comprises a production system for utilizing waste silica fume to prepare industrial silicon. The system comprises a silica fume storage and encryption bin, a reducing agent storage bin, a double-auger stirring and mixing machine, an opposite-roller compression and pelletizing machine and a reducing smelting furnace. The reduced and smelt main raw materials can be wholly waste silica fume, the recovery rate of the silica fume is above 85%, the problems of low comprehensive utilization degree of silica fume and environmental pollution are solved, and higher-purity industrial silicon products are also produced.

A method for improving the performance of gypsum powder belongs to the field of gypsum powder application, and comprises the following steps: 1, selecting a coating agent capable of tightly combiningwith gypsum crystal; 2, adding a liquid coating agent to the gypsum powder; and 3, sending the gypsum powder into which the liquid coating agent is added to a coating device for coating. The method has the characteristics of greatly improving the strength, water resistance and the like of the gypsum powder.

The invention discloses a biomass briquette. The biomass briquette is prepared from the following raw materials by weight: 30 to 45 parts of straw, 25 to 35 parts of wood chips, 15 to 25 parts of rice husks, 10 to 15 parts of corncob, 5 to 10 parts of anthracite, 1 to 3 parts of quicklime and 6 to 9 parts of magnesium aluminum silicate hydrate. The invention also discloses a preparation method for the biomass briquette. According to the invention, the biomass briquette and the preparation method thereof can effectively utilize biomass raw materials and have the advantages of simple processing technology, low cost, small density, high calorific value, low ash content, full combustion, etc.

The invention discloses an assembled sandwich panel with metal surface heat insulation for construction and an installation method, which comprises a metal shell and a thermal insulation layer uniformly filled and bonded in the metal shell, and the upper and lower ends of the metal shell are provided with movable The ribs and grooves cooperate with each other, the ribs are provided with through holes along the width direction, the middle part of the splicing surface around the metal shell is provided with an opening extending along the length direction, and the inner side of the opening is provided with relatively independent left and right support frames. 1. The right support frame is supported between the thermal insulation layer and the metal shell, and is connected at the opening through a silicon rubber pad. The opening can effectively block the thermal bridges on the inner and outer end faces of the metal shell, improving the heat preservation and heat insulation effects, and the bolt connection improves the overall seismic performance of the assembly. It is suitable for packaging and decoration of building exterior walls under various environmental conditions.

The invention discloses a method for preparing biomass briquetting fuel from sisal hemp residues. Sisal hemp residue powder, magnesium oxide, manganese ore slag, starch, cerous sulfate, sodium carboxymethylcellulose mucilage and epoxy asphalt with the weight ratio of 100:(8-12):(5-10):(10-15):(2-4):(10-15):(5-8) are adopted as raw materials, and the biomass briquetting fuel is prepared through the procedures of smashing, forming, drying and the like. The method has the advantages that the preparation process is simple, energy consumption is low, production efficiency is high, the forming rate is high, and cost is low, the prepared biomass fuel is low in density, high in heat value, low in ash content, not prone to looseness, good in moisture resistance, capable of being saved for a long time and suitable for industrial production, and internal gaps of the product are small.

The invention discloses a preparation method of biomass solid fuel. The method includes the steps of adding cassava lees into a smashing machine to be smashed to be 40-60 mesh to obtain cassava lee powder, adding the cassava lee powder, magnesium oxide, acetylene sludge, attapulgite and pucherite into a stirring device, adding a proper amount of water to be stirred into paste, putting the paste into a muffle furnace to be sintered for 3-5 h at a temperature of 500-600 DEG C to obtain carbide, evenly mixing the carbide with polyurethane rubber and polyurethane asphalt, conveying the obtained mixed materials to a forming machine to be press-formed at a temperature of 120-140 DEG C and pressure of 60-80 MPa to obtain formed fuel, drying the formed fuel, cooling the fuel to the room temperature, and packaging the fuel to obtain the biomass solid fuel. The method has the advantages of being simple in preparation process, low in energy consumption, high in production efficiency, high in forming rate, low in cost and the like; the prepared biomass solid fuel is low in density, high in heat value, small in ash content, small in production internal gap, free of loosening, good in humidity resistance, capable of being stored for a long time and suitable for industrial production.

The invention discloses a low-energy consumption and high-calorific value formed fuel processing device and a method thereof. The device comprises a first-stage straw storage bin, a second-stage strawstorage bin, a coffee ground storage bin, a first fuel heating furnace, a second fuel heating furnace and a pregelatinized starch tank, wherein the first-stage straw storage bin is connected with a biomass gasifying furnace, and an outlet of the biomass gasifying furnace is connected with the first fuel heating furnace and the second fuel heating furnace, respectively; the second-stage straw storage bin is connected with the first fuel heating furnace through a first chain grate stoker; the coffee ground storage bin is connected with the second fuel heating furnace through a second chain grate stoker; and the fuel heating furnace, the second fuel heating furnace and the pregelatinized starch tank are connected with an extrusion forming machine through the same mixing stirrer, and an outlet of the extrusion forming machine is connected with a formed fuel storage bin. According to the device, a low-energy consumption and high-calorific value solid formed fuel can be obtained, so that the utilization cost of a biomass energy source is lowered, and the development and the application of a biomass utilization technique are promoted.

The invention discloses a pouring device applied to a lining trolley. The lining trolley comprises an arc template. A pouring window is formed in the arc template. The pouring device comprises a fixing base matched with the pouring window, a pouring pipe arranged on the fixing base, a spiral sheet arranged on the periphery of the pouring pipe and a drive assembly driving the spiral sheet to rotate. The pouring device solves the problem about empty disengaging during existing vault part concrete pouring.

The invention discloses a high-efficiency biomass solid pellet fuel. The high-efficiency biomass solid pellet fuel is prepared from corncobs, magnesium oxide, calcium carbide slag, starch, lanthanum oxide, petroleum resin and polyurethane asphalt according to a weight ratio of 100:5-10:5-8:6-10:3-5:5-8:4-6 through crushing, molding and drying processes. The calorific value of the prepared biomass solid pellet fuel product is 24-28MJ/kg, the ash content of the product is 2.5-4.0%, the water absorption rate of the product is 8-10%, and all performances of the product are better than those of current commercial products. A preparation method of the biomass solid pellet fuel has the advantages of simple process, low energy consumption, low production efficiency, high molding rate and low cost.

The invention discloses a method for preparing efficient biomass briquettes. The method comprises the steps of adding peanut shells into a pulverizer to obtain 40-60-mesh peanut shell powder through pulverizing; adding the peanut shell powder, magnesium oxide, red mud and cobalt carbonate into a stirrer, then adding a proper amount of water, and conducting stirring to obtain paste; placing the paste in a muffle furnace for roasting lasting 3-4 h at 600-800 DEG C, so that a carbide is obtained; evenly mixing the carbide with sodium carboxymethylcellulose mucilage and epoxy asphalt to obtain a mixture, and conveying the mixture to a forming machine for extrusion forming at 110-130 DEG C under the pressure of 60-80 Mpa, so that briquette fuel is obtained; drying the briquette fuel, reducing temperature to room temperature, and conducting packaging to obtain the biomass briquettes. The biomass briquettes have a calorific value of 25-30 MJ/kg, ash content of 2.5-4.0% and water absorption of 8-10%, and various performances are all higher than those of products currently available in the market.

The invention discloses a self-bearing fire-resistant flame-retardant coaxial high-voltage cable and a manufacturing method thereof. A central assembly is arranged in a coaxial cable base body; the outer side of an inner wire is uniformly wrapped with insulating strips; the outer side of an inner heat-sealing film is provided with a middle-layer assembly; the outer side of an insulating rubber padis sleeved with a metal braided layer; iron powder is uniformly distributed between adjacent blocking rings; an outer layer assembly is arranged on the outer side of an outer heat-sealing film; heatconduction grooves are evenly formed in the outer side of an aluminum alloy ring; and rubber rings are bonded to the two sides of the aluminum alloy ring. According to the invention, the central assembly is used as an inner core of the cable; the cooperation between the insulating strips and flame-retardant wires improves flame-retardant effect, and the flexibility of the plurality of hinged insulating strips is better; iron powder of a middle-layer assembly absorbs oxygen and water vapor in a gap to prevent the metal braided layer from being oxidized and corroded; the aluminum alloy ring andheat conducting wires of the outer layer assembly dissipate heat; and a blocking ring and the aluminum alloy ring serve as a supporting framework and are matched with the central assembly to improve the overall strength of the cable, so the cable is more convenient to use.

The invention is applicable to the technical field of concrete, and provides feldspar waste concrete and a preparation method thereof. The feldspar waste concrete is prepared from, by weight, 80-100 parts of feldspar waste, 40-60 parts of cement, 20-40 parts of nanometer aluminum oxide powder, 10-30 parts of coal ash, 40-60 parts of coarse aggregate, 20-40 parts of medium sand, 10-30 parts of argil, 10-12 parts of modifier and 8-10 parts of water, wherein the modifier is prepared from triethoxyvinylsilane and a beta naphthalene sulfonic acid sodium formaldehyde condensate. According to the concrete disclosed by the invention, internal gaps of the concrete can be reduced to a certain extent by adding the nano aluminum oxide powder and the fly ash, and meanwhile, the impact toughness of theconcrete is improved; by adding the modifier, internal gaps of the concrete can be effectively reduced, so the concrete disclosed by the invention has good later strength.

The invention relates to a moon-based landing platform and a construction method thereof, in particular to a platform used when a spacecraft lands on the moon and a construction method of the platform, and belongs to the technical field of deep space exploration of the moon. According to the invention, the microwave sintering molding of the multi-component simulated lunar soil material with small particles, light weight and large specific surface area in the aerospace field is realized, the molding precision and density requirements of a spacecraft landing platform are met, a technical basis is provided for subsequent lunar base construction and lasting operation, and good economic benefits and social benefits are achieved.

The invention discloses an anti-radiation hematite brick, anti-radiation hematite mortar and a method for constructing a shielding wall by using the anti-radiation hematite brick and the anti-radiation hematite mortar. The anti-radiation shielding wall breaks through the mode of pouring the shielding wall by using concrete for a long time; the hematite brick is prepared by stirring raw materials to required slump in a fixed place according to a specific mixing ratio of the raw materials, injecting the mixture into a mold, performing vibrating, compacting and hardening and removing the mold; the hematite mortar is prepared by mixing and stirring the raw materials according to a specific mixing ratio; and the shielding wall is manufactured by lofting, watering, wire suspension and laying the hematite bricks. The bricklaying method comprises the following steps of: implanting reinforcing steel bars for fixing at proper positions between newly-built hematite brick wall bricks and an old wall ; and during construction, filling the hematite mortar between the hematite bricks and the bricks. A proper amount of fly ash is added into the hematite bricks and the hematite mortar, so that the workability is better, and the construction is more convenient; the hematite bricks are detachable and reusable, construction is simplified, production cost is reduced, and the wall is high in density, high in anti-radiation shielding capacity and particularly suitable for being used in narrow space parts.

The invention discloses a light durable wood-plastic composite material for trays. The wood-plastic composite material is prepared by mixing a component A, a component B and a component C. The component A comprises a wood fiber material, thermoplastic plastic and a lubricant; the component B comprises a flame retardant, an antistatic agent, a filler and an ACR modified toughening agent; and the component C comprises an expanding agent and a pigment. According to the light durable wood-plastic composite material for the trays and the preparation method of the light durable wood-plastic composite material, a preparation process is simple, raw material cost is low, environmental protection is achieved, the flame retardance and the antistatic property of the material are good, potential safetyhazards of fire disasters are reduced, potential safety hazards caused by static electricity to human bodies and other aspects are reduced, and high safety is realized; the ACR modified toughening agent is added for modification and toughening, so the toughness and wear resistance of the material are improved, the wear resistance is optimized, the service life is prolonged; and by using the expanding agent, the defects of internal gaps, cavities and surfaces are reduced, internal pressure is maintained, the material is expanded while the performance of the material is ensured, and the weightof the material is reduced.