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66results about How to "Clean production environment" patented technology

Ageing-resistant heat-insulation tarpaulin and production method thereof

The invention discloses an ageing-resistant heat-insulation tarpaulin. The tarpaulin is composed of a polymer cloth base and an ageing-resistant heat-insulation coating which is coated on the polymer cloth base in a casting mode. After aging is quickened for 236 hours by simulating natural manual work, the tensile strength of the tarpaulin is improved by at least 10%, the elongation at break thereof is improved by at least 5% than the elongation at break before aging, the ultraviolet reflectivity thereof is more than or equal to 80%, and the infrared obstruction rate thereof is more than or equal to 85%. The invention also discloses a preparation method thereof, comprising the following step: pretreating a heat-insulation material by utilizing a surface treating agent; and premixing the heat-insulation material with accessory ingredients such as vinyl type polymer, antioxidant and the like, then putting the heat-insulation material and the accessory ingredients into a double-screw extrusion casting coating machine to be fused, plasticized and extruded out to be casted and coated on the polymer fiber cloth base, and carrying out cooling shaping and reeling by utilizing a cooling roll to obtain the ageing-resistant heat-insulation tarpaulin. The tarpaulin product obtained by the invention has favourable water proofness, heat-insulating property and ageing-resistant property, wide application range, no pollution in the production process, small energy consumption, low cost and easy popularization and application.
Owner:SICHUAN UNIV

Fully mechanized mining face gettering-induction convection type dust control and removal wind fog screen device and method

The invention discloses a fully mechanized mining face gettering-induction convection type dust control and removal wind fog screen device and method, and belongs to the technical field of coal mine dust removal. The fully mechanized mining face gettering-induction convection type dust control and removal wind fog screen device comprises draw-out dust clearing fans, fan-shaped flow guide hoods, coal cutter exterior spraying devices and spraying devices between hydraulic supports; the coal cutter exterior spraying devices and the spraying devices between the hydraulic supports are mounted on the two sides, close to rocker arms of a coal cutter, of a cutter body, the two hydraulic supports in front of a moving frame, and the two hydraulic supports on the downwind side of a front roller of the coal cutter correspondingly, and conduct spraying at a certain angle to form corresponding fog screens; a large amount of dust generated by the moving frame and coal cutting is subjected to atomization dust removal; and meanwhile, the two draw-out dust clearing fans which are symmetrically mounted on the positions, close to the cutter body of the coal cutter, of the rocker arms are started, exhaust inlets of the two draw-out dust clearing fans directly face the front roller and a rear roller of the coal cutter correspondingly, and wind outlets are connected with the fan-shaped flow guide hoods. The fully mechanized mining face gettering-induction convection type dust control and removal wind fog screen device and method have important practical significance for improving the operating environment of fully mechanized mining face workers and guaranteeing safety production of coal mines.
Owner:SHANDONG UNIV OF SCI & TECH

Step-by-step separation system and method for extracting salts from coking HPF desulfurizing solution by aqueous phase method

InactiveCN103818883AA decrease in the concentration of secondary saltsReduce secondary salt contentThiosulfates/dithionites/polythionitesThiocyanic acidSeparation technologyPhase method
The invention relates to a step-by-step separation system and method for extracting salts from coking HPF desulfurizing solution by an aqueous phase method. The step-by-step separation system comprises a primary filtering and decolorizing system, a first-level evaporating concentrating and crystallizing system, a second-level concentrating and crystallizing system, a repulping concentrating and crystallizing system, and a vacuum heating and condensing system, wherein the primary filtering and decolorizing system is communicated with the first-level evaporating concentrating and crystallizing system through a mother liquor tank, and is also communicated with the vacuum heating and condensing system; the first-level evaporating concentrating and crystallizing system is communicated with the second-level concentrating and crystallizing system, and is also communicated with the repulping concentrating and crystallizing system and the vacuum heating and condensing system. The step-by-step separation system adopts a step-by-step concentrating and separating technology of the aqueous phase method to separate and extract thiocyanate and thiosulfate from the desulfurizing solution through high separation and cold crystallization; meanwhile, separated secondary salt is recycled, so that the content of the secondary salt in the desulfurizing solution is decreased, the coking desulfurization is carried on in the positive direction, and the desulfurizing efficiency is improved; in addition, the recycled secondary salt has a high economic value, and the pollution problem due to the coking desulfurizing solution is solved.
Owner:光阳工程技术有限公司

Improved method for treatment technology for secondary cobalt-nickel leaching residues

The invention discloses an improved method for a treatment technology for secondary cobalt-nickel leaching residues. The method comprises the following steps of (1) carrying out filter pressing, specifically, pumping the secondary cobalt-nickel leaching residues into a filter press to be subjected to filter pressing, and taking the filter residues for later use; (2) carrying out slurrying; (3) carrying out leaching, specifically, pumping slurry to zinc oxide high-acid leaching tanks, adding 10m3 of the slurry into each tank, then adding spent zinc electrolytes and sulfuric acid, carrying out leaching for 6-8 hours under the conditions that the liquid-solid ratio is 5-6:1 and the temperature is 80-90 DEG C, controlling the initial acid concentration in the leaching process to be 150-180g / Land the final acid concentration to be 80g / L, and finally, carrying out filtration treatment on all materials so as to obtain leaching liquor and leaching residues; and (4) carrying out recycling, specifically, returning the leaching liquor to a zinc system to recycle zinc and cadmium and returning the leaching residues to a lead system to recycle lead and silver. The method has the advantages that the leaching rate of the zinc and the cadmium can be increased, the recovery rate of the zinc and the cadmium can be increased, the production cost can be lowered, and the labor intensity can be reduced.
Owner:南丹县南方有色金属有限责任公司

Garden waste lignin component fermentative degradation method

The invention discloses a garden waste lignin component fermentative degradation method. The method includes the steps of: (1) crushing materials into materials with a particle size of 0.4-0.7cm; (2) placing the crushed materials into a first-stage fermentation area, adding a mushroom residue fermentation broth into the materials to keep the water content of the materials at 55%-65%, and conducting primary fermentation; (3) adding the mushroom residue fermentation broth into the materials subjected to primary fermentation, keeping the water content of the materials at 45%-55%, and then placing the materials in a second-stage fermentation area for secondary fermentation; and (4) putting the fermented materials subjected to secondary fermentation into a third-stage fermentation area for fermentation, thus finishing the whole fermentative degradation process. Directed at the characteristics of lignin in the materials, the method provided by the invention adopts physicochemical treatment method and biochemical treatment method for material pretreatment and material conditioning, and directed at the activity characteristics of bacteria, fungi, actinomycetes and other different dominant degrading floras at different temperature stages in the fermentative degradation process, realizes accurate condition control and efficient degradation of lignin.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI

Non-detaching cleaning device for enclosed cover of rotary drum drier

The invention discloses a non-detaching cleaning device for an enclosed cover of a rotary drum drier. The non-detaching cleaning device consists of a motor gearing down device, bearing bases, a tubular shaft and a rotary joint, wherein two or more sets of motor gearing down devices, bearing bases, tubular shafts and rotary joints can be arranged in the enclosed cover of the rotary drum drier for using; the tubular shaft is horizontally arranged on the inner upper part of the enclosed cover, and is supported by the bearing bases at the two ends; one end of the tubular shaft is connected with and driven by the motor gearing down device; the other end of the tubular shaft is connected with the rotary joint; and n pair of straight liquid spray pipes and two pairs of bent liquid spray pipes are fixedly arranged on the outer circle of the tubular shaft. Due to the adoption of the non-detaching cleaning device, scale deposits which tend to corrode easily and are accumulated on the inner wall of a wall plate of the enclosed cover, components of a feeding device and the outer walls of pipe fittings can be removed completely in time, and a long-time stable and clean production environment is provided for the production of high-quality foods or food raw materials.
Owner:东台市食品机械厂有限公司

Ageing-resistant heat-insulation tarpaulin and production method thereof

The invention discloses an ageing-resistant heat-insulation tarpaulin. The tarpaulin is composed of a polymer cloth base and an ageing-resistant heat-insulation coating which is coated on the polymer cloth base in a casting mode. After aging is quickened for 236 hours by simulating natural manual work, the tensile strength of the tarpaulin is improved by at least 10%, the elongation at break thereof is improved by at least 5% than the elongation at break before aging, the ultraviolet reflectivity thereof is more than or equal to 80%, and the infrared obstruction rate thereof is more than or equal to 85%. The invention also discloses a preparation method thereof, comprising the following step: pretreating a heat-insulation material by utilizing a surface treating agent; and premixing the heat-insulation material with accessory ingredients such as vinyl type polymer, antioxidant and the like, then putting the heat-insulation material and the accessory ingredients into a double-screw extrusion casting coating machine to be fused, plasticized and extruded out to be casted and coated on the polymer fiber cloth base, and carrying out cooling shaping and reeling by utilizing a cooling roll to obtain the ageing-resistant heat-insulation tarpaulin. The tarpaulin product obtained by the invention has favourable water proofness, heat-insulating property and ageing-resistant property, wide application range, no pollution in the production process, small energy consumption, low cost and easy popularization and application.
Owner:SICHUAN UNIV

Production method of seaweed liquid fertilizer special for pseudostellaria heterophylla

The invention provides a production method of a seaweed liquid fertilizer special for pseudostellaria heterophylla. According to the method, the seaweed liquid fertilizer is prepared by uniformly mixing 100 to 150 parts of seaweed extracting liquid, 0.1 to 0.5 part of microelements, 1 to 10 parts of botanical pesticide extracting liquid, 1 to 5 parts of natural active organic matters, 1 to 2 parts of natural surfactants and 1 to 2 parts of soil improvement agents, wherein a preparation method of the seaweed extracting liquid comprises the steps that 100 to 150 parts of natural seaweed powder, 100 to 200 parts of rice washing water, 0.1 to 2.0 parts of EM (effective microorganism) flora fermentation liquid and 0.1 to 2.0 parts of sugar are uniformly stirred and are then subjected to composting fermentation at room temperature to obtain a fermented seaweed material; a sodium carbonate water solution is used for stirring and extraction; filtering is performed; the obtained filter liquor is evaporated and concentrated to reach the density being 1.2 to 1.3; the seaweed extracting liquid is obtained. The use effect is good; the seaweed liquid fertilizer belongs to an efficient and environment-friendly seaweed liquid fertilizer.
Owner:GUIZHOU UNIV

Anhydrous dyeing process and production line of high-end environment-friendly PU leather base cloth

The invention provides an anhydrous dyeing process and production line of high-end environment-friendly PU leather base cloth. The process includes the following step that greige cloth is sequentiallyand continuously subjected to cloth feeding, desizing, water washing, drying, rolling at room temperature, drying, color development and cropping. The process improves many problems caused by batch production of traditional leather base cloth with a dyeing cylinder. The anhydrous dyeing process and production line of high-end environment-friendly PU leather base cloth are ideal in design, each link is operated separately and independently, a production mode of an assembly line is formed, the production efficiency is greatly improved, and 50% labor can be saved. The water consumption is small,operation is performed just at room temperature, energy conservation and environment protection are achieved, energy consumption of dyeing is basically equal to zero, the dyeing rate is high, the prepared PU leather base cloth is high in strength, has no color difference, and the product quality is excellent. Meanwhile, the labor intensity of workers is reduced, operation is more convenient, flying nap, a dirty floor and dirty water can be effectively controlled, and the production environment in a workshop can be cleaner.
Owner:福建格利尔印染有限公司

Brewing method for high-salt liquid-state fermentation soy sauce

The invention discloses a brewing method for a high-salt liquid-state fermentation soy sauce. The brewing method comprises the following steps of: preparing materials, stewing the materials, producing a starter, fermenting and spraying oil, wherein the steps of fermenting and spraying oil are carried out in a glass steel can. The fermenting specifically comprises the following processes of: adding the materials which are treated by the steps of preparing materials, stewing the materials and producing the starter to a saline solution, weight of which is 2-3 times that of the materials; adding the mixture to the glass steel can which is paved with a false substrate at the bottom, controlling the thickness of the fermentation layer to 1.5m-3.8m, and spraying and fermenting for 4-8 months. The spraying and fermenting specifically comprises the following processes of: spraying every day at the initial 30 days of the fermenting; spraying every two days from the 31st day to the 90th day; spraying every 3-7 days after the 90th day, wherein each spraying time is 3 minutes to 10 minutes, and the flow rate is 20kg / min to 40kg / min. According to the brewing method disclosed by the invention, the environment is sealed in the fermentation process, and is sanitary and safe. The process for fermenting and spraying oil in a same fermentation tank are simpler, efficient and low in production cost; and the production environment is clean and sanitary for being beneficial to saving energy and reducing emission. Besides, the produced soy sauce is good in flavor and bright in color.
Owner:四川清香园调味品股份有限公司

Sheet-shaped sheet metal part laser cutting auxiliary device

The invention discloses a sheet-shaped sheet metal part laser cutting auxiliary device. The sheet-shaped sheet metal part laser cutting auxiliary device comprises a positioning assembly, a jacking assembly, a guide cleaning assembly, a material pushing assembly and a support assembly, wherein the positioning assembly is used for providing a positioning platform to position a workpiece; the jacking assembly is used for jacking the positioning assembly upwards to guide and position the workpiece; the guide cleaning assembly is used for providing a material feeding channel and cleaning waste materials in the cutting process; the material pushing assembly is arranged on one side of the guide cleaning assembly to be used for providing a waste material separation effect; and the positioning assembly and the jacking assembly are installed in the support assembly, furthermore, the positioning assembly is installed on the jacking assembly, and the guide cleaning assembly is installed at the upper end of the support assembly. According to the sheet-shaped sheet metal part laser cutting auxiliary device, a multifunctional structure integrating the functions of material feeding and discharging, positioning, cutting, cleaning, material stirring and separating and the like of laser cutting is integrated, the production efficiency is effectively improved, furthermore, positioning is more convenient, and the applicability is wide.
Owner:铭镭激光智能装备(河源)有限公司
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