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43results about How to "Give full play to the bonding effect" patented technology
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Laminate flooring manufacturing method
ActiveCN108099338AImprove surface roughnessOvercome severe deformationLamination ancillary operationsLayered product treatmentSurface roughnessPulp and paper industry
The invention discloses a laminate flooring manufacturing method and relates to the field of floors. The laminate flooring manufacturing method comprises the following steps of step A, performing impregnation treatment on abrasion resistant paper, decorative paper and equilibrium paper; step B, performing drying treatment on the abrasion resistant paper, the decorative paper and the equilibrium paper after impregnation; step C, treating the upper surface and the lower surface of a basic layer to improve the surface roughness of the upper surface and the lower surface of the basic layer; step D, coating the upper surface and the lower surface of the basic layer with glue; step E, putting the abrasion resistant paper, the decorative paper, the basic layer and the equilibrium paper in an overlapping manner from top to bottom; and step F, pressing the abrasion resistant paper, the decorative paper, the basic layer and the equilibrium paper by adopting a cold-in and cold-out hot pressing manner. The invention aims at solving the problems of deformation and infirmness in combination of the layers in the existing manufacturing process with adoption of a PVC stone sculpture floor or a WPCboard as a floor of the basic layer and provides the laminate flooring manufacturing method which overcomes the problems of deformation and infirmness in combination of the layers of a finished floorproduct.
Owner:ANHUI YINUO WOOD PLASTIC SHEET TECH CO LTD
Preparation technique of iron ore pellets
InactiveCN102936652AReduce dosageGive full play to the bonding effectCarboxymethyl celluloseSodium Bentonite
The invention discloses a preparation technique of iron ore pellets, which comprises the following steps: (1) adding 0.5-1% of bentonite to iron concentrate, evenly mixing to obtain a mixture of which the water content is 1-3% lower than the propery pelletizing water content, pelletizing with a disk pelletizer or drum pelletizer, and when seed pellets grow into pellets with the diameters of 8mm or so, spraying fiberized bentonite in the pellet growth region to continue pelletization until qualified green pellets with the diameters of 12-16mm are obtained; and (2) the fiberized bentonite is prepared by the following steps: bentonite and a CMC (carboxymethyl cellulose) solution are mixed, so that smectite molecules in the bentonite sufficiently absorb water and expand under the actions of water molecules and CMC molecules under the action of mechanical stirring force, and spread to be compounded with the CMC molecules, thereby preparing the fiberized bentonite. The fiberized bentonite is atomized and sprayed to the pellet growth region to efficiently act on the iron concentrate granule surface and fully display the binding action, thereby obviously enhancing the quality of the green pellets and the strength of the preheated pellets and roasted pellets.
Owner:CENT SOUTH UNIV
Water-based paint for lithium ion battery composite diaphragm, lithium ion battery composite diaphragm and lithium ion battery
InactiveCN112940650AImprove bonding effectGuaranteed bonding effectNon-macromolecular adhesive additivesNitrile polymer adhesivesLithium electrodeBonding strength
The invention relates to water-based paint for a lithium ion battery composite diaphragm, the lithium ion battery composite diaphragm and a lithium ion battery. The water-based paint comprises a binder and non-conductive inorganic particles, the binder comprises a granular polymer A and a granular polymer B, the glass transition temperature of the granular polymer A is lower than that of the granular polymer B, the granularity D50 of the granular polymer A is 0.05-1.0 [mu]m, and the granular polymer B has the granularity D10 of 1.0-5.0 [mu]m, the granularity D50 of 2.0-10 [mu]m, and the granularity D90 of 3.0-20 [mu]m. The particle size D50 of the non-conductive inorganic particles is smaller than the particle size D50 of the particulate polymer B. The water-based paint has the advantage of high bonding strength, the prepared composite diaphragm is good in air permeability, not prone to mutual bonding and easy to roll and store, and the lithium ion battery applying the composite diaphragm is excellent in comprehensive performance and long in cycle storage life.
Owner:深圳好电科技有限公司
Preparation method of EVA (ethylene-vinyl acetate) foaming shoe material containing softwood
The invention discloses a preparation method of an EVA (ethylene-vinyl acetate) foaming shoe material containing softwood. According to the method, the compatibility between the softwood and EVA can be improved, the finished product rate of the EVA foaming shoe material containing the softwood is increased, the method is suitable for large-scale production, and the prepared EVA foaming shoe material containing the softwood can have natural softwood appearance. According to the preparation method of the EVA foaming shoe material containing the softwood, natural softwood is firstly mixed with natural rubber and then mixed with EVA, so that the natural softwood can be firstly wrapped with a layer of cohesive natural rubber, the natural rubber and EVA have excellent crosslinking compatibility, natural rubber is used as an intermediate cohering medium, the compatibility between the natural softwood and the EVA is improved, and the stripping phenomenon between the natural softwood and EVA can be effectively prevented.
Owner:国发(福建)塑胶有限公司
Production technology of machine-made semi-coke barbecue charcoal with small particle size
The invention provides a production technology of machine-made semi-coke barbecue charcoal with a small particle size. The production technology of machine-made semi-coke barbecue charcoal with the small particle size comprises the following steps: S1, obtaining a raw material: adding coal into a vertical bipolar crusher, carrying out two-stage crushing by the vertical bipolar crusher, and screening the crushed raw material to obtain a raw material with required particle size composition; and S2, stirring: adding sodium humate the crushed and screened raw material obtained in step S1, and adding the obtained mixture into a stirrer. A combustion improver such as potassium permanganate is added after hot gelatinization to provide oxygen for carbon rods in the combustion process in order to make the carbon rods sufficiently combusted, and also can absorb sulfur oxides released during the combustion of the carbon rods in order to reduce the emission of the sulfur oxides, so the productiontechnology of machine-made semi-coke barbecue charcoal with the small particle size increases the viscosity and enhances the bonding ability, fully exert the bonding effect of an adhesive, enhances the strength of the barbecue charcoal and increases the product benefit.
Owner:内蒙古蓝色火宴科技环保股份公司
Method for preparing SiC whisker and C-AlPO4 powder synergistic modification mullite coating
The invention relates to a method for preparing a SiC whisker and C-AlPO4 powder synergistic modification mullite coating. A C / SiC composite material is selected as a matrix, a SiC inner coating is prepared by a chemical vapor deposition method, a SiC whisker and C-AlPO4 powder synergistic modification mullite coating precursor is prepared on a SiC inner coating-coated C / SiC composite material bya sol-gel process combined with air spray coating, and the SiC whisker and C-AlPO4 powder synergistic modification mullite coating precursor is sintered to finally obtain the SiC whisker and C-AlPO4 powder synergistic modification mullite coating. The method improves the defects of the coating prepared by a traditional sol-gel process, such as easy cracking, uneven distribution and low bonding strength, can meet the thickness control of a micron-scale coating, has simple preparation process, low preparation cost and high preparation efficiency, can meet many advantages such as large componentand heterogeneous component preparation, is convenient for large-scale industrial application, and has broad development prospects.
Owner:CENT SOUTH UNIV
Ultrahigh-water-resistance coating varnish for artificial stone water transfer printing, and preparation and application methods thereof
The invention relates to an ultrahigh-water-resistance coating varnish for artificial stone water transfer printing, and preparation and application methods thereof. The main paint comprises the following components in parts by weight: 50-60 parts of synthetic fatty acid modified alkyd resin, 20-25 parts of lauric acid modified alkyd resin, 5-8 parts of aldehyde ketone resin, 2-5 parts of nano vapor-phase silicon dioxide slurry, 4-8 parts of solvent, 0.3-0.5 part of defoaming agent, 0.05-0.3 part of drying agent, 0.2-0.5 part of leveling agent and 1-3 parts of adhesion promoter. The application method comprises the following steps: weighing the coating varnish, uniformly stirring the auxiliary paint, main paint, curing agent and diluter in a weight ratio of 1:(0.8-1.0):(0.8-10), spraying on a substrate, and naturally drying.
Owner:肇庆千江高新材料科技股份公司
Pelletizing binder with desulfuration function and preparation method and application of pelletizing binder
ActiveCN109371234AWith desulfurization functionDesulfurization achievedSodium BentoniteMaterials science
The invention discloses a pelletizing binder with a desulfuration function and a preparation method and application of the pelletizing binder and belongs to the field of preparation of ferrous metallurgy blast furnace materials. The pelletizing binder with the desulfuration function contains the following components including, by weight, 2.5-10 wt.% of urea, 2.5-10 wt.% of Ca(OH)2 and 80-95 wt.% of bentonite. The pelletizing binder is powder which contains at least 95 wt.% of particles smaller than 0.074 mm in particle size. The defect of high cost of iron ore pellet production and desulfuration in the prior art is overcome. The pelletizing binder has the desulfuration function, can be applied to desulfuration in a pellet production process, can effectively reduce the content of SO2 in pellet smoke, relieves burden of a desulfuration system and does not affect normal pellet production. The preparation method has the advantages of being low in preparation cost and high in efficiency and is suitable for being applied and popularized.
Owner:句容康泰膨润土有限公司
Water-based binder for lithium ion battery diaphragm
InactiveCN112920747ASmall particle sizeLarge particle sizeNitrile polymer adhesivesSecondary cellsPhysical chemistryLithium-ion battery
The invention relates to the field of lithium ion battery diaphragm materials, in particular to a water-based binder for a lithium ion battery diaphragm. The binder comprises a granular polymer A and a granular polymer B; the glass transition temperature of the granular polymer A is lower than that of the granular polymer B, the granularity D50 of the granular polymer A is 0.05-1.0 [mu]m, and the granularity D10 of the granular polymer B is 1.0-5.0 [mu]m, the granularity D50 is 2.0-10 [mu]m, and the granularity D90 is 3.0-20 [mu]m. The water-based binder has the advantage of high bonding strength, and the composite diaphragm prepared from the water-based binder is good in air permeability and easy to roll and store.
Owner:深圳好电科技有限公司
Chain grate-kiln pelletizing process pre-desulfurization and pre-denitrification method
ActiveCN109371231AStrong thermal stabilitySlow down NH3 releaseRotary drum furnacesEngineeringFlue-gas desulfurization
The invention discloses a chain grate-kiln pelletizing process pre-desulfurization and pre-denitrification method and belongs to the field of steel and iron metallurgy. According to the method, a drying section I of a chain grate machine conducts drying through air extraction, an air mixture of a preheating section I and a cooling section III of a ring cooler serves as a hot air source, and an airdraft drying section II conducts drying still through air extraction; Ca<2+> chelation urea intercalated bentonite is added in the fresh pellet preparation process, a urea spraying device is arrangedon a preheating section II of the chain grate machine, and urea powder is sprayed so as to obviously reduce the NOx content and the Sox content. The method is provided for solving the conditions thata chain grate-kiln pelletizing flue gas desulfurization system under the new environmental protection standards are generally sufficient in capacity and does not conduct flue gas desulfurization yet.The Ca<2+> chelation urea intercalated bentonite is added in the fresh pellet preparation process. The urea powder is cooperatively sprayed at the preheating section II of the chain grate machine. Bycontrolling the additive amount of the Ca<2+> chelation urea intercalated bentonite and the spray amount of the urea powder, the desulfurization and denitrification effects can be controlled flexibly.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Grafting copolymer type adhesive, preparation method and application thereof as well as manufacturing method for artificial board
ActiveCN108314982AHigh strengthImprove liquidityNon-macromolecular adhesive additivesWood veneer joiningCross-linkPolyvinyl alcohol
The invention provides a preparation method for a grafting copolymer type adhesive, and the preparation method comprises the following steps: providing a dialdehyde starch solution and a polyvinyl alcohol mixed solution; mixing the polyvinyl alcohol mixed solution, the dialdehyde starch solution and vinyl acetate, and performing cross-linking reaction to obtain precursor solution; mixing the precursor solution with an initiator and N-hydroxymethyl acrylamide, and performing cross-linking reaction to obtain a mixed solution; mixing the mixed solution with urea and borax, and performing neutralizing reaction to obtain the grafting copolymer type adhesive. The grafting copolymer type adhesive prepared by the method is free of formaldehyde release and is relatively high in viscosity. The invention further provides the grafting copolymer type adhesive prepared by the preparation method and application of the adhesive in an artificial board manufacturing process. Besides, the invention further provides a manufacturing method for an artificial board, and the artificial board has the characteristics of being light and high in strength.
Owner:FUJIAN HEQIZU FORESTRY SCI & TECH CO LTD
Multilayer composite pellet for inhibiting SO2 and NOx in sintering process
PendingCN112430730AReduce decompositionGuarantee normal productionDispersed particle separationAir quality improvementPhysical chemistryPollutant emissions
The invention discloses a multilayer composite pellet for inhibiting SO2 and NOx in a sintering process, and belongs to the technical field of pollutant emission reduction in the sintering process. The pellet comprises an inner-layer pellet and an outer-layer pellet arranged outside the inner-layer pellet. The inner-layer pellet comprises an ammonia inhibitor and an inner-layer pelletizing material, and the ammonia inhibitor can release ammonia gases after being heated and decomposed. The outer-layer pellet comprises a pore-forming agent and an outer-layer pelletizing material, and the pore-forming agent enables pores to be formed in the outer-layer pellet in the sintering process. The pore-forming agent such as ammonium bicarbonate in the multi-layer composite pellet is heated and decomposed to generate pores, a porous structure effectively delays the decomposition of the ammonia inhibitor such as urea and the release of NH3, so that the ammonia inhibitor is consistent with the NOX emission window period, the NOX emission is reduced, and the cooperative emission reduction of SO2, NOX and dioxin is achieved in a breakthrough manner.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Preparation method of pellets containing SCR waste catalysts
The invention discloses a preparation method of pellets containing SCR waste catalysts, and belongs to the technical field of pollutant emission reduction in the sintering process. The preparation method comprises the following steps that firstly, inner-layer pellets are prepared, then continuous pelletizing is performed outside the inner-layer pellets to grow the pellets to obtain outer-layer pellets, catalyst layers are prepared outside the outer-layer pellets, and multi-layer pellets are finally prepared; ammonia inhibitors and inner-layer pelletizing materials are added into the inner-layer pellets, and the ammonia inhibitors can release ammonia gas after being heated and decomposed; pore-forming agents and outer-layer pelletizing materials are added into the outer-layer pellets or part of the outer-layer pellets, and pores are formed in the outer-layer pellets in the sintering process through the pore-forming agents. The pore-forming agents such as ammonium bicarbonate in the multi-layer pellets are heated and decomposed to generate the pores, so that decomposition of the ammonia inhibitors such as urea and release of NH3 are delayed, the emission window period of the ammonia inhibitors and the emission window period of NOX are consistent, NOX emission is reduced, and synergistic emission reduction of SO2, NOX and dioxin is achieved in a breakthrough mode under the action of the catalysts.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Preparation method of pellets for reducing emission of SO2 and NOx in sintering process
PendingCN112609072AReduced release rateImprove emission reduction efficiencyFlue gasPhysical chemistry
The invention discloses a preparation method of pellets for reducing emission of SO2 and NOx in a sintering process, and belongs to the technical field of pollutant emission reduction in the sintering process. The preparation method comprises the following steps that firstly, inner-layer pellets are prepared from an inner-layer pelletizing material, an ammonia inhibitor is added in the preparation process of the inner-layer pellets, the ammonia inhibitor is decomposed by heating to release ammonia gas, the content of N element in the ammonia inhibitor is enabled to account for 0.02%-0.15% of the mass of the inner-layer pellets, and then the outer parts of the inner-layer pellets are coated with coating layers by means of an outer-layer pelletizing material; the wrapping layer outside the pellets can play a role in delaying the release rate of NH3, so that the NH3 is released stably in a centralized manner at the temperature of 600-800 DEG C, and NOx is discharged at the temperature of 650 DEG C and is consistent with the release temperature interval of the NH3, so that the NOx reacts with the NH3; and meanwhile, generation of dioxin can be inhibited in the cooling process until the temperature of the sintering flue gas is reduced to be lower than the dioxin synthesis temperature, and the emission reduction efficiency of SO2 and dioxin is improved.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY +1
Pellet binder with desulfurization function, preparation method and application thereof
ActiveCN109371234BWith desulfurization functionDesulfurization achievedFerrous metallurgyBlast furnace
The invention discloses a pelletizing binder with a desulfuration function and a preparation method and application of the pelletizing binder and belongs to the field of preparation of ferrous metallurgy blast furnace materials. The pelletizing binder with the desulfuration function contains the following components including, by weight, 2.5-10 wt.% of urea, 2.5-10 wt.% of Ca(OH)2 and 80-95 wt.% of bentonite. The pelletizing binder is powder which contains at least 95 wt.% of particles smaller than 0.074 mm in particle size. The defect of high cost of iron ore pellet production and desulfuration in the prior art is overcome. The pelletizing binder has the desulfuration function, can be applied to desulfuration in a pellet production process, can effectively reduce the content of SO2 in pellet smoke, relieves burden of a desulfuration system and does not affect normal pellet production. The preparation method has the advantages of being low in preparation cost and high in efficiency and is suitable for being applied and popularized.
Owner:句容康泰膨润土有限公司
Reinforcing steel bar sleeve glue pouring connection structure and construction method
InactiveCN112814283AIncrease bite forceGive full play to the bonding effectBuilding reinforcementsMaterial removalConstruction engineering
The invention discloses a reinforcing steel bar sleeve glue pouring connection structure. The connection structure comprises a sleeve and a binder used for connecting reinforcing steel bars, the two ends of the sleeve are each provided with a connector facilitating insertion of the reinforcing steel bars, the middle of the sleeve is further provided with a pouring hole used for pouring the binder, and a screw thread used for increasing the bite force of the binder is further arranged in the sleeve. During use, through the steps of sleeve installation, binder inspection, binder pouring, maintenance, fixing material removal, quality inspection and the like, the steel bars are connected, the bonding effect of the binder is fully played, the defects of steel bar welding and mechanical connection are overcome, the construction is feasible, the quality is ensured to be reliable, and the economical efficiency is high.
Owner:CCCC THIRD HARBOR ENG +1
Production technology for necking textile
ActiveCN110435287AThree-dimensionalIncrease fashion trendsLamination ancillary operationsFibre treatmentWork in processHeat setting
The invention discloses a production technology for necking a textile, and relates to the field of production technologies of elastic textiles. According to the technical scheme, the production technology for necking the textile is characterized in that production is conducted according to the following technology steps of (1) preparing a base cloth, a braid and a hot melt adhesive film; (2) conducting carving treatment on the hot melt adhesive film; (3) laminating the braid and the hot melt adhesive film; (4) splicing the braid and the base cloth; (5) placing a cut-part, which is formed by splicing the base cloth and the braid, on an initial mould; (6) conducting a pre-setting working procedure, wherein a prepared semi-finished product is subjected to pre-heat setting by adopting an electric heating mould, and conducting hot-pressing through the electric heating mould; (7) conducting a steam setting working procedure, wherein setting is conducted on a semi-finished product, which is subjected to pre-setting, by adopting a steam mould; and (8) conducting cooling, wherein through a ventilation cooling system on steam, a product, which is subjected to steam setting, is cooled. The production technology for necking the textile has the advantages that by punching and carving the hot melt adhesive film and embodying the punched and carved hot melt adhesive film on an elastic portion, a fashion trend is added, and the braid is completely fused into the base cloth, so that the elastic portion of a piece of cloth, which is obtained after the base cloth is set, is stereoscopic.
Owner:厦门鸿绮实业有限公司
Iron ore shaft furnace pelletizing process desulfurization method based on NH3 slow release binder
The invention discloses an iron ore shaft furnace pelletizing process desulfurization method based on a NH3 slow release binder and belongs to the field of steel and iron metallurgy. According to themethod, the NH3 slow release binder is added to an iron ore shaft furnace in the fresh pellet preparation process, fresh pellets are fed into an upper drying section of the upper portion of the shaftfurnace, the NH3 slow release binder is heated to release NH3 and water vapor, the NH3 and the water vapor are mixed with waste gas containing SO2 generated at a lower preheating roasting section of the lower portion of the shaft furnace to have a reaction and get into dust in the follow-up dust removal process, and the SO2 content of the waste gas is reduced. The iron ore shaft furnace pelletizing process desulfurization method based on the NH3 slow release binder is provided for solving the problems that an iron ore pellet material is degraded, the concentration of flue gas SO2 is increaseddue to increasing of the sulfur content, and a desulfurization system is large in load and high in operation cost in the prior art, part of SO2 is removed in the pellet production process, the SO2 content in the waste gas can be reduced during pellet production of the shaft furnace, the desulfurization load of the waste gas can be reduced, the pellet material source can be broadened, and the desulfurization cost of flue gas can be remarkably reduced.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Chain grate machine-rotary kiln pellet process pre-desulfurization and denitrification method
ActiveCN109371231BNo escape problemReduce contentRotary drum furnacesPhysical chemistryProcess engineering
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
A production process that effectively improves the pass rate of cemented carbide round knife blanks
ActiveCN109604607BGuaranteed moldingGuaranteed compactnessTurbinesOther manufacturing equipments/toolsProcess engineeringMixed materials
Owner:技锋精密刀具(马鞍山)有限公司
Method for preparing solid briquette fuel from biomass liquefaction residue
ActiveCN104593116BHigh densityHigh strengthSolid fuelsWaste based fuelHigh densityAbsorption capacity
The invention discloses a method for preparing a solid molded fuel from biomass liquefaction residues. The method comprises the following steps of mixing the biomass liquefaction residues, a binder and an auxiliary fuel to obtain a mixed raw material, adjusting the moisture content of the mixed raw material to 10%-20% and then carrying out extrusion molding to obtain the solid molded fuel. By the method, the resourceful utilization of the liquefaction residues can be achieved, the obtained solid molded fuel has the advantages of high density, high strength, high heat value, strong anti-absorption capacity, low cost, energy conservation and environmental friendliness, the resourceful utilization of solid wastes and biomass is achieved and the problem of the treatment and disposal of the solid wastes and biomass can be effectively solved.
Owner:HUNAN UNIV
Seamless sculpture elastic band production device
ActiveCN110420811AImprove production efficiencyEnsure stickinessPretreated surfacesCoatingsReciprocating motionMoisture absorption
The invention discloses a seamless sculpture elastic band production device, and relates to the field of elasticized fabric production equipment. According to the technical scheme, the device comprises a rotation type rotating disc, a driving device, a mounting support and ventilation moisture absorption devices. A preparing area, a pre-shaping area and a shaping area are sequentially arranged onthe circumference of the rotation type rotating disc, and a lower mold is arranged in each area. The driving device provides rotating power of the rotation type rotating disc, and the mounting supportis provided with an electric heating die and a steam die which are located on areas of the pre-shaping area and the shaping area and a lifting device for driving the electric heating die and the steam die to do reciprocating motion towards dies in the corresponding areas. The lower dies of the preparing area, the pre-shaping area and the shaping area on the rotation type rotating disc are each provided with one ventilation moisture absorption device. The device has the advantages that automation equipment adopts the rotation disc rotation type structure, time and labor are saved, automatic circular work is achieved, production benefits are greatly improved, steam heating is adopted, braid is completely dissolved into cloth in a garment, and the elastic part of the garment has more third dimension.
Owner:厦门鸿绮实业有限公司
Wear-resistant composite spraying micropowder and wear-resistant composite coating and preparation method thereof
ActiveCN106591760BImprove wear resistanceGive full play to the bonding effectMolten spray coatingWear resistantTitanium
Owner:FUNIK ULTRAHARD MATERIAL
A kind of polymer composite material mixed with kudzu root fiber powder and preparation method thereof
The invention discloses a polymer composite material mixed with radix puerariae fiber powder. The polymer composite material is prepared from the following components in parts by weight: 6 to 12 parts of modified phenolic resin, 5 to 10 parts of nitrile rubber powder, 15 to 21 parts of radix puerariae fiber powder, 10 to 20 parts of graphite, 1 to 3 parts of antimony sulfide, 1 to 3 parts of zinc oxide, 5 to 15 parts of coke, 10 to 20 parts of calcium carbonate, 5 to 15 parts of mullite powder, 5 to 15 parts of clay, 4 to 6 parts of chromite and 1 to 3 parts of alumina. According to the polymer composite material, the radix puerariae fiber powder and the mullite powder with high specific heat are combined to enhance the polymer composite material, so that the mechanical strength of a product is increased, the heat resistance and friction and wear properties of the product can be obviously improved, and the high-performance requirement of the composite material is satisfied; additionally, an extraction process of the radix puerariae fiber powder is simple, sources are wide, the environmental requirement is satisfied, and the polymer composite material prepared from the radix puerariae fiber powder has the advantage of low cost and is suitable for industrialized mass production and use.
Owner:江苏省盐城市射阳县射阳港对虾养殖二公司
Multilayer pellet for reducing emission of sintering smoke pollutants
PendingCN112410549AImprove emission reduction efficiencyWide variety of sourcesPollutant emissionsEnvironmental engineering
The invention discloses a multilayer pellet for reducing emission of sintering smoke pollutants, and belongs to the technical field of pollutant emission reduction in the sintering process. The multilayer pellet comprises an inner pellet and a wrapping layer, wherein the inner pellet comprises an inner pelletizing material and an ammonia type inhibitor, the ammonia type inhibitor can release ammonia gas after being heated and decomposed, and the content of the N element in the ammonia type inhibitor accounts for 0.02-0.15% of the mass of the inner pellet. The wrapping layer wraps the outer side of the inner pellet and comprises an outer pelletizing material. The wrapping layer outside the pellet can play a role in preventing NH3 from being released, so that the NH3 can be stably released in a centralized manner at the temperature of 600-800 DEG C, NOX can be discharged at the temperature of 650 DEG C, the discharge temperature of the NOX is consistent with the release temperature interval of NH3, and therefore, the NH3 and the NOX react with each other; and meanwhile, generation of dioxin can be inhibited in the cooling process, the cooling process is conducted until the temperature of the sintering smoke is lowered to be lower than the dioxin synthesis temperature, and the emission reduction efficiency of SO2 and dioxin is improved.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY +1
A kind of production technology of textile necking
ActiveCN110435287BThree-dimensionalIncrease fashion trendsLamination ancillary operationsFibre treatmentProcess engineeringHot melt
The invention discloses a textile necking production process, which relates to the production process field of elastic fabrics. The key points of the technical scheme are that the production is carried out according to the following process steps: S1, preparing base cloth, webbing and hot-melt adhesive film; S2, applying Hot melt adhesive film is engraved; S3, lamination of webbing and hot melt adhesive film; S4, splicing of webbing and base fabric; S5, spliced pieces of base fabric and webbing are placed on the material preparation area; S6, pre-setting Process: preheat and shape the prepared semi-finished product with an electric heating mold, and heat press through the electric heating mold; S7, steam setting process: use a steam mold to shape the pre-shaped semi-finished product; S8, cooling: pass The exhaust cooling system on the steam mold cools the products after steam setting. The technical effects are as follows: 1. By punching and engraving the hot-melt adhesive film, it is reflected in the elastic part to increase the fashion trend, and the ribbon is completely dissolved in the base cloth, so that the elastic part of the formed clothing has a three-dimensional effect.
Owner:厦门鸿绮实业有限公司
based on nh 3 Desulfurization method of iron ore shaft furnace pelletizing process with slow-release binder
The invention discloses based on NH 3 The invention discloses an iron ore shaft furnace pelletizing process desulfurization method with a slow-release binder, belonging to the field of iron and steel metallurgy. The present invention adds NH in the process of preparing green pellets in an iron ore shaft furnace 3 Slow release binder, green pellets enter the upper drying section in the upper part of the shaft furnace, NH 3 Slow release binder releases NH when heated 3 and water vapor, and the SO-containing 2 The exhaust gas mixes and reacts, and enters the dust in the subsequent dedusting process, and the SO in the exhaust gas 2 content decreased. The present invention aims at the SO in the flue gas caused by the deterioration of iron ore pellet raw materials and the increase of sulfur content in the prior art. 2 Concentration increase, heavy desulfurization system load, high operating cost, part of SO removal during pellet production 2 , which can reduce the SO in the exhaust gas of shaft furnace pellet production 2 content, reduce the exhaust gas desulfurization load, broaden the sources of pellet raw materials and significantly reduce the cost of flue gas desulfurization.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
A sic whisker with c-alpo 4 Preparation method of powder synergistically modified mullite coating
Owner:CENT SOUTH UNIV
Method for reducing emission of sintering flue gas pollutants by utilizing SCR-containing waste catalyst pellets
The invention discloses a method for reducing emission of sintering flue gas pollutants by utilizing SCR-containing waste catalyst pellets, and belongs to the technical field of pollutant emission reduction in the sintering process. In the preparation process of a sintering raw material, a sintering pellet is added, and the sintering pellet is sequentially provided with an inner-layer pellet, an outer-layer pellet and a catalyst layer from inside to outside. An ammonia inhibitor is included in the inner-layer pellet, and the ammonia inhibitor can release ammonia gas after being heated and decomposed. A pore-forming agent is included in the outer-layer pellet, and the pore-forming agent enables pores to be formed in the outer-layer pellet in the sintering process. The catalyst layer comprises an SCR catalyst and vanadium-titanium blast furnace slag. The pore-forming agent in the sintering pellet is heated and decomposed to generate pores, and therefore decomposition of the ammonia inhibitor such as urea and release of NH3 are delayed, the ammonia inhibitor is consistent with the NOX emission window period, NOX emission is reduced, and cooperative emission reduction of SO2, NOX and dioxin is realized in a breakthrough manner under the action of the catalyst.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Waterproof material for semi-rigid base surface and preparation method thereof
The invention discloses a waterproof material for a semi-rigid base layer surface and a preparing method of the waterproof material. The waterproof material for the semi-rigid base layer surface is prepared from, by mass, 10-15% of glass flakes, 32-40% of kieselguhr, 9-12% of sodium silicate, 8-10% of slag powder, 6-8% of graphene oxide, 4-6% of coconut oil acid diethanolamide, 2-3% of a polysiloxane defoaming agent and the balance water. The waterproof material for the semi-rigid base layer surface can permeate into a semi-rigid base layer, the compactness of the internal structure of the semi-rigid base layer can be improved, and the microstructure can be improved; besides, a smooth hardened layer is formed on the semi-rigid base layer surface, and the anti-permeability, the anti-scouring performance and the water stability of the semi-rigid base layer surface can be effectively improved so that the durability of the semi-rigid base layer can be improved, and the service life of a pavement can be greatly prolonged.
Owner:CHANGAN UNIV
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