60results about How to "Generation of blocking" patented technology

The invention provides an EVA adhesive film without adding uvioresistant absorbent, which is prepared mainly by the raw materials according to the mass ratio as follows: ethylene-vinyl acetate copolymer, 100 parts; peroxide type crosslinking agent 0.1 to 10 parts, phenolic or phosphite type antioxidant 0.05 to 5 parts; and hindered amine light stabilizer, 0.01 to 5 parts. As the ultraviolet absorbent is not used, the EVA adhesive film obtained does not produce ultra-violet cut-off, leads the solar modules to receive UV district light energy, thereby having higher photoelectric conversion efficiency and excellent uvioresistant anti-aging property, and guaranteeing the service life of PV modules.

A cold plasma apparatus for treating seeds to improve the germination rate and quality of seeds has a cylindrical body with feeding inlet, discharging cutlet, cavuumizing port and air inlet, parallel upper and lower plate electrodes in said cylindrical body, a seed conveying belt driven by power unit to pass through the region between said upper and lower plate electrodes, a RF source connected electrically with said upper and lower plate electrodes, and metallic shielding cover for said plate electrodes.

The invention discloses a waste incineration method capable of inhibiting generation of dioxins and a system thereof. The system comprises a fluid bed incinerator and an exhaust heat boil, and also comprises a first separating unit, an external heat exchanger and a retardant adding device, wherein the fluid bed incinerator, the first separating unit and the exhaust heat boil are connected in sequence; the external heat exchanger is connected between the first separating unit and the fluid bed incinerator and used for the recycle combustion of returning charge ash which is separated and returned through a returning charge inclined pipe to the hearth of the fluid bed incinerator, at the same time the heat exchange uses the heat of the returning charge ash to heat steam; and the retardant adding device is used for adding retardant from all parts of the system according to different retardant and operation condition. Through the overall optimized design of the waste incineration system, the invention can basically inhibit the generation of dioxins, effectively controls the pollution of dioxins on environment, and also can effectively recycle the heat energy generated by waste incineration.

The invention provides a scrap brass smelting auxiliary and a preparation method thereof. The smelting auxiliary used in the smelting process of scrap brass comprises the following components in percentages by weight: 40-60% of calcium salt, 5-20% of sodium salt, 20-40% of quartz sand, and 5-20% of charcoal powder. The preparation method comprises the following steps of: respectively drying the calcium salt, the sodium salt and the quartz sand; carrying out ball-milling on the calcium salt and the sodium salt to be 100-mesh and sieving; carrying out ball-milling on the quartz sand to be 200-mesh and sieving; baking the charcoal in an oven for 1 to 2 hours at a temperature of 150-160 DEG C, and crushing the charcoal to be 20-mesh and sieving; and then weighing according to the composition and ratio; and mixing with a mixer, cooling and packaging. In the use process, the equipment is not corroded and the environment is not polluted. The smelting auxiliary can be used for effectively increasing the smelting speed of scrap brass and eliminating the slag after the scrap brass is smelted and is convenient for the slag-salvaging operation, and the content of copper particles in the salvaged slag is reduced by more than 30% year-on-year, therefore the metal loss caused by slag salvaging is effectively reduced.

The invention discloses cigarette tipping paper and a production process thereof. The tipping paper contains a fire retardant. The production process comprises the following steps: pulp beating, pulp mixing, sand removing, pulp flushing, pulp flowing, web forming, surface gluing, drying, press polishing, rolling, cutting, finishing, inspecting, finished product obtaining, finished product packaging and finished product storing, wherein in the pulp mixing process, an additive and a packing material are evenly mixed in a pulp mixing pool; and the packing material comprises calcium carbonate and the flame retardant. Therefore, the problem that when the finished cigarette produced from the common tipping paper material is burnt, after tobacco shreds are burnt completely, the tobacco shreds are continuously burnt to a filter tip to cause the burning of the filter tip so as to generate harmful gas harming the health of a human body is solved. In addition, the problem of a fire hazard caused by throwing cigarette butts arbitrarily and the like are also solved. After the tobacco shreds of the cigarette are brunt completely, the burnt tobacco shreds are extinguished naturally when coming into contact with the filter tip, so that the harmful gas generated by the burning of the filter tip is prevented, and the fire hazard caused by throwing the unextinguished cigarette butts arbitrarily is avoided.

The invention belongs to the field of antioxygen, in particular to an emulsion antioxygen and a preparation method thereof. The emulsion antioxygen is emulsified and compounded by the following raw material reagents at the proportion: main antioxygen, auxiliary antioxygen, emulsifying agent, dispersing agent and defoaming agent. The emulsion antioxygen has better oxidation resistance than other similar antioxygens and can achieve the optimal oxidation resistance effect, and the total solid content of the emulsion antioxygen is more than 52%. The emulsion antioxygen has the advantages of good oxidation resistance effect, big activity, low volatility, high durability, no pollution and the like and is especially suitable for protecting tint and pollution-free color polymer thereof. The emulsion antioxygen can be favorably dispersed in ABS (Acrylonitrile Butadiene StyreneAcrylonitrile Butadiene Styre) rubber latex, is ideal antioxygen used preparing ABS by emulsion polymerization and has excellent dispersibility. According to the emulsion antioxygen, the heating oxygen aging time of the ABS resin can be prolonged in the ABS production, the oxidation inducing temperature of the ABS resin is improved, the phenomenon that the ABS resin becomes yellows in the production and processing process thereof can be prevented, the strength of a product can be improved, and the oxidation resistance problem for preparing ABS by emulsion polymerization can be solved.

The invention discloses a high-temperature-resistant and fire-resistant exterior wall panel, which comprises a base layer, a fire-resistant insulation layer, a plastering mortar layer, a waterproof layer, a decorative coating and a wear-resistant layer arranged sequentially from the inside to the outside; Parts include: 27-30 parts of hydroquinone, 11-14 parts of hexachlorocyclotriphosphazene, 18-22 parts of polyoxypropylene glycol, 65-70 parts of isophorone diisocyanate, trimethylpentanediol 50-60 parts, 3-4 parts of glucose, 0.3-0.6 parts of organic bismuth catalyst DY-20, 25-35 parts of foaming agent, 9-12 parts of foaming aid, 19-22 parts of palygorskite, 13 parts of dolomite ~16 parts, diatomite 6-9 parts, glass fiber 5-8 parts, straw silk 12-15 parts, magnesium hydroxide 16-19 parts, anti-aging agent 2-3 parts. The high-temperature-resistant fire-proof exterior wall panel proposed by the invention has excellent high-temperature resistance and fire-proof performance, excellent water resistance, high hardness and good compression resistance.

The invention relates to a residue conveying device for a building construction project. The residue conveying device comprises a bottom plate, wherein a collecting box is arranged on the bottom plate; a feeding port is formed in the collecting box; a material guiding box is arranged above the feeding port; supporting rods are arranged on the two sides of the collecting box; a rotating shaft whichpenetrates through and is rotationally connected to the supporting rods on the two sides is fixedly arranged on the material guiding box; a dustproof part is arranged between the position, close to the bottom plate, of the material guiding box and the bottom plate; a buffer part used for buffering construction waste entering the material guiding box is arranged in the material guiding box; and amaterial conveying pipe is arranged on the side wall of the material guiding box and located at the position far away from the bottom plate, the material conveying pipe communicates with the materialguiding box, a feeding hopper is arranged at the end part, far away from the material guiding box, of the material conveying pipe, and a dust falling mechanism is arranged on the feeding hopper. The residue conveying device has the advantage that the damage to the body of a constructor due to the fact that the constructor inhales dust is prevented.

An additive for reducing greenhouse gas emissions of livestock manure compost and application thereof are disclosed. The additive is a mixture composed of zeolite, ferrous sulfate, Bacillus subtilis WJC11 and Bacillus cereus WJC2 in a mass ratio of 50:30:1:1. The additive is used under the conventional operation process of compost. Compost production can be ensured while compost quality is improved, and emission of greenhouse gas in the composting process is preferentially reduced. Thereby, the environmental pollution caused by the gas release during the composting process is effectively controlled.

A traditional Chinese medicinal preparation for treating malignant tumors is prepared by using 10-20g of Radix Astragali, 5-15 parts of ginseng, 10-25g of Spica Prunellae, 2-5g of licorice root, 20-25g of Rhizoma Curcumae, 25-30g of Barbed Skullcap Herb, 5-10g of dried toad, 15-20g of Radix Ranunculi Ternati, 20-25g of Polyporus Umbellatus, 20-25g of Cornu Bubali and 25-30g of Agrimonia eupatoria. The traditional Chinese medicinal preparation for treating malignant tumors has the advantages of low cost and good curative effect.

The invention discloses a noise-reducing and fireproof external wall panel. The external wall panel comprises a base layer, a noise-reducing and fireproof layer, a flow guide plate layer, an abrasion-resistant layer and a decoration coating which are arranged sequentially from inside to outside; a preparation method of the noise-reducing and fireproof layer comprises steps as follows: a phosphonitrilic chloride trimer is heated, kept at the temperature, cooled to the room temperature and washed, and polydichlorophosphazene is obtained; polydichlorophosphazene is added to tetrahydrofuran, hydroquinone is dropwise added, then reflux heating, distillation, washing and vacuum drying are performed, and a material a is obtained; after the material a and poly-1,4-butylene adipate glycol are evenly mixed, 1,6-hexamethylene diisocyanate is added, dry nitrogen is introduced for protection, and a material b is obtained through heating, temperature keeping and cooling; diethylene glycol, pentaerythritol, bismuth laurate, a foaming agent, a blowing promoter, bentonite, palygorskite, expanded perlite, glass fibers, jute fibers, magnesium hydroxide, an anti-aging agent and acetone are evenly mixed, the surface of the base layer is coated with the mixture, and then the noise-reducing and fireproof layer is obtained through heating and temperature keeping.

The invention discloses an external wall panel with excellent fireproof performance. The external wall panel comprises a base layer, a heat-insulation fireproof layer, a finishing mortar layer, a waterproof layer, a decorative coating and a wear-resistant layer which are arranged sequentially from inside to outside, wherein the heat-insulation fireproof layer is prepared from the raw materials in parts by weight: 27-30 parts of hydroquinone, 11-14 parts of hexachlorocyclotriphosphazene, 18-22 parts of poly (1,6-hexamethylene adipate) diol, 65-70 parts of diphenylmethane diisocyanate, 50-60 parts of ethylene glycol, 0.8-1.2 parts of pentaerythritol, 0.3-0.6 part of dibutyl tin dilaurate, 25-35 parts of foaming agent, 9-12 parts of foaming auxiliaries, 19-22 parts of expanded perlite, 13-16 parts of bentonite, 6-9 parts of diatomite, 5-8 parts of glass fibers, 12-15 parts of cotton fibers, 16-19 parts of magnesium hydroxide and 2-3 parts of anti-aging agent. According to the external wall panel, the high-temperature resistance and fireproof performance are excellent, the water resistance is excellent, the hardness is high, and the compression resistance is good.

The invention discloses a livestock and poultry manure composting additive and an application thereof. The livestock and poultry manure composting additive is a mixture formed by a mixture A formed byferrous sulfate and zeolite, calcium superphosphate, bacillus subtilis WJC11 and bacillus cereus WJC2 according to a mass ratio of (1-50):(30-50):1:1. The livestock and poultry manure composting additive is used under a conventional operation technology of composting, a composting yield can be guaranteed and composting quality is improved, and a greenhouse gas released in a composting process ispreferentially reduced, thereby pollution to the environment caused by gas release in the composting process is effectively controlled.

The invention discloses a method for determining rhenium in a smelted waste acid by employing complexing separation of tartaric acid hydrogen peroxide, which aims at solving the problem that rhenium in the smelted waste acid is difficult to accurately determine due to the matrix effect of the smelted waste acid and the interference of coexisting ions in determination of low-content rhenium in the smelted waste acid. Tartaric acid is adopted as a compelxing agent to complex impurity ions in the smelted waste acid; a smelted waste acid solution is adjusted to be in alkalescence; rhenium in the smelted waste acid is oxidized to be in the highest valance state (only rhenium with the highest valence state can be extracted by acetone under the listed conditions) by hydrogen peroxide as an oxidant; and rhenium is separated from the impurity ions and a sulfuric acid matrix in the smelted waste acid by employing acetone extraction under the condition of a strong base, so that the extraction rate of rhenium is improved; the influences on determination caused by impurity element ions and the sulfuric acid matrix in the determination process are removed; and the accuracy and the reliability of the analysis result are improved.

The invention discloses an electric heating hot-setting roller, wherein, an outer sleeve of the roller is sleeved outside an inner sleeve; the central section of a front plate is provided with a positioning surface; front ends and rear ends of the outer sleeve and the inner sleeve are fixedly connected with the front plate and a rear plate to form a main cavity; electric heaters are arranged inside the main cavity along the circumferential direction; a hot resistance is arranged on the rear plate; and heat-conducting media are filled in the main cavity. The electric heating hot-setting roller also comprises a jacket, an inner rib plate, drop plugs, a protecting cap and a soaking plate, wherein, the jacket is arranged inside the inner sleeve and welded with the surface of the inner sleeve through the inner rib plate to form an auxiliary cavity; a plurality of auxiliary cavities are uniformly arranged on the surface of the inside of the inner sleeve along the circumferential direction; the auxiliary cavities are connected with the main cavity via through holes; the drop plugs are arranged inside the through holes; the soaking plate is fixedly connected with the surface of the inner sleeve and arranged inside the main cavity; the protecting cap is a circular plate and is fixedly connected with the rear plate; an expander is arranged on the surface of the inner sleeve and takes the shape of a hollow cylinder; and a sylphon is arranged inside the cylinder. The electric heating hot-setting roller adopts the electric heating and heating medium heat-conducting technology, is uniform in heat transmission and is safe and reliable, and can freely set the heating temperature.

The invention discloses a green disinfectant capable of disinfecting the body, and relates to the technical field of disinfectants. The green disinfectant capable of disinfecting the body is prepared from the following raw materials in percentage by mass: 48-56% of potassium hydrogen persulfate, 4.5-5.6% of anhydrous citric acid, 4.3-5.2% of sulfamic acid, 13.5-16.1% of sodium alkyl benzene sulfonate with the mass fraction of 95%, 1.3-1.8% of table salt, 15.4-18.7% of sodium hexametaphosphate, 0-7.2% of a stable complexing agent, 1-2.5% of an anti-caking agent and 0.3-0.8% of lemon flavor, and is prepared by uniformly mixing the raw materials. The green disinfectant capable of disinfecting the body is good in disinfection effect, not easy to cake, capable of being stably stored for a long time, good in water solubility, green and environment-friendly, does not cause corrosion to the environment, has an efficient killing effect on pathogenic microorganisms such as bacteria, viruses, fungi, mycoplasma and the like, and is an environment-friendly disinfectant which is broad in spectrum, efficient, reliable, lasting, safe and environment-friendly.

The invention discloses a catalyst for preparing CO and H2 through direct cracking of methanol, and a preparation method and application of the catalyst. The invention aims to overcome the defect thata catalyst for preparing CO and H2 through direct cracking of methanol is poor in stability, prone to deactivation after sintering and short in service life. The catalyst comprises the following components in parts by weight: 55 parts of CuO, 22 parts of ZnO, 4 parts of La2O3, 4 parts of MgO, 7 parts of Al2O3, 6 parts of ZrO2, 1.5 parts of K2O, 2 parts of SiO2 and 0.5 part of CaO, wherein the ZrO2, the MgO and the Al2O3 form a ZrO2-MgAl2O4 spinel carrier, and the K2O, the SiO2, CaO and Al2O3 form kaliophilite. According to the invention, the catalyst has characteristics of high strength, goodthermal stability and low catalyst strength loss after reduction; the catalyst is not easily pulverized during the use process and can substantially reduce side reactions; and the service life of thecatalyst can be effectively prolonged.

The invention discloses a fireproof and explosion-proof power cable and a preparation method thereof, and relates to the technical field of power cables. The fireproof and explosion-proof power cable comprises a cable core, an outer insulating layer wrapping the cable core, an inner sheath longitudinally wrapping the outer insulating layer, a high-temperature belting layer wrapping the inner sheath, and an outer sheath extruding the high-temperature belting layer, wherein the cable core comprises a plurality of conductors and an inner insulating layer wrapping the conductors; each conductor is formed by twisting and pressing a plurality of copper wires; the inner insulating layer is formed by wrapping and drying an inorganic fire-resistant synthetic mica tape; and a gap in the cable core is filled with an inorganic fireproof filling material. The product provided by the invention has the advantages of fire prevention, bulletproof, static explosion resistance, high-strength impact resistance, cutting resistance, corrosion resistance, radiation protection and the like, and the potential safety hazard of the cable in various military and major civil engineering is greatly reduced.

The invention discloses a method for improving interface connection of aluminum-magnesium dissimilar materials, and belongs to the technical field of metal structure material connection. The method comprises the following steps: firstly, polishing a lap joint area of an aluminum and magnesium material sample, then carrying out coating treatment on the lap joint area of the aluminum and magnesium material sample by adopting a high-speed particle flow of a powder feeding device, and cooling in an inert gas atmosphere or air after a coating is prepared; and finally, the aluminum and magnesium lap joint sample is subjected to backfill type friction stir spot welding. The zinc coating prepared by the invention can prevent mutual diffusion between aluminum and magnesium, reduce the generation of brittle phase (IMC) and improve the tensile shear load of the aluminum-magnesium lap joint. In the figure 5 of the specification, the mechanical properties of the joint without the coating and the joint after the zinc coating is prepared by using the method are compared, and the result shows that the performance of the joint is greatly improved indeed after the zinc coating is added by using the method.

The invention relates to cement mortar with high crack resistance and used for plastering and a preparation method of the cement mortar and in particular relates to the field of building mortar. The mortar is prepared by mixing the following components in weight ratio: 20-30 of ordinary Portland cement, 55-65 of heavy aggregates, 8-12 of fine aggregates and 1.2 of compound additive; the compound additive is prepared by mixing the following components in parts by weight: 0.5 part of redispersible latex powder, 0.25 part of cellulose ether, 0.2 part of calcium formate, 0.15 part of wood fibers and 0.1 part of crack-resistant polypropylene fibers; and a finished product can be packaged by separately adding the ordinary Portland cement, the fine aggregates, the compound additive and the heavyaggregates into a stirrer in sequence and carrying out uniform stirring. The cement mortar does not contain any volatile solvents and harmful heavy metals, is environment-friendly inorganic mortar andis simple and practical in production process, good in crack resistance and high in shock resistance.

The invention relates to a preparation method of an ultra-fine grain binding-phase-free hard alloy. The preparation method comprises the following steps of weighing raw material powder according to the components of the ultra-fine grain binding-phase-free hard alloy, adding carbon powder into the raw material powder to form a mixture, and grinding and mixing the mixture in an inert atmosphere to obtain mixed powder, wherein the addition amount of the carbon powder is C<total>; carrying out molding treatment on the mixed powder to obtain a green body; performing degreasing treatment and homogenizing heat treatment on the green body; carrying out oxidation treatment on the green body subjected to the homogenizing heat treatment; and sintering the green body obtained after oxidation treatment to obtain the compact ultra-fine grain binding-phase-free hard alloy free of the graphite phase and the decarburization phase. The hard alloy is fine in grain and has good strength, hardness and polishing smoothness.