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Computer-aided geologic investigation system based on portable machine
InactiveCN1477567AAuxiliaryGo digitalSpecial data processing applicationsGeological measurementsData warehouseData acquisition
The present invention relates to a computer-aided geological survey system based on portable machine. It adopts the multiple S integration technique including GIS, GPS, DBS, RS, CADS, ES and ANNS systems and method oriented towards object to make design and development. The data collected by said system are fed into unified space data base and attribute data base, and the data base technique can be used to make effective connection and information extraction. The system includes front-stage material collecting and reduction, wild data acquisition and indoor data comprehensive reduction three subsystem platforms.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
High-starch-content waterproof totally-decomposed composite material and preparation method thereof
InactiveCN103304851AGood component compatibilityImprove mechanical propertiesAdditive ingredientPlasticizer
The invention relates to a high-starch-content waterproof totally-decomposed composite material and a preparation method thereof. The method comprises the steps of: firstly dispersing nanosilicon dioxide particles in a plasticizer in advance to obtain nano sol; secondly, evenly blending the sol and starch in a high-speed mixer, and then kneading the mixture together with polyvinyl alcohol in a kneading machine to obtain starch-based master batch; and finally carrying out melt blending on the starch-based master batch and polylactic acid through one of or a combination of more of an open mill, an internal mixer and an extruder to obtain the high-starch-content waterproof totally-decomposed composite material. Compared with the ordinary biology-based composite material, the high-starch-content waterproof totally-decomposed composite material is high in starch content, low in cost, and good in ingredient compatibility, the mechanical property and waterproof property of the material can be both obviously improved, and all ingredients can be totally decomposed, so that the excellent sustainable development characteristic can be achieved; and meanwhile, the high-starch-content waterproof totally-decomposed composite material can be machined by adopting die pressing, extrusion, injection molding and other technologies on general plastic machining equipment.
Owner:EAST CHINA UNIV OF SCI & TECH
Porous thermal conductive asphalt concrete pavement heat exchange system and use thereof
ActiveCN101387097APrevent snow from freezingPrevent freezingIn situ pavingsHeat storage plantsPlate heat exchangerHeat conducting
The invention provides a porous heat-conducting asphalt concrete pavement heat exchange system, which comprises an asphalt concrete pavement heat exchange device (1) laid on a roadbed, wherein the device consists of a first close-graded asphalt concrete surface course (9), a porous heat-conducting asphalt concrete surface course (10) segmented by prefabricated dense partition boards (13), an emulsified asphalt concrete seal layer (14) and a second close-graded asphalt concrete surface course (11); the system is provided with silicone rubber water penetration preventing layers (12) which are distributed on the surfaces of the two close-graded asphalt concrete surface courses and penetrate the inside of the surface courses; and the asphalt concrete pavement heat exchange device (1), a heat reservoir (2), an auxiliary heat source (3) and a user heat exchanger (4) are connected through pipelines and a fan (6), so as to form a thermal circulation closed loop of the system. The system has the advantages of energy conservation, emission reduction, low operation and maintenance cost and the like, and can be used for collecting solar energy, maintaining pavement and heating / cooling buildings.
Owner:武汉理工大产业集团有限公司
Preparation method of novel polyether-synthesis slow-release-type polycarboxylic acid water reducer
The invention discloses a preparation method of a novel polyether-synthesis slow-release-type polycarboxylic acid water reducer. The method comprises the following steps that S1, a polyether macromonomer and deionized water are added into a reaction kettle, stirred at the normal temperature and dissolved, and a small unsaturated acid or anhydride monomer and a small unsaturation esters monomer aremixed in water to obtain an A solution; a reduction agent, a chain transfer agent and water are sufficiently mixed to obtain a B solution for use; S2, a certain amount of A solution is added to a macromonomer aqueous solution obtained in the step S1, and even stirring is conducted; S3, an oxidizing agent is added to the mixture obtained in the step S2 in advance, then the B solution is dropwise added, the A solution is dropwise added after the B solution is dropwise added for 2-10 min, and after drip addition is completed, heat preservation is conducted for 0.5 h; S4, after a reaction is completed, an alkaline solution is added for neutralization, the product is poured out, and the slow-release-type polycarboxylic acid water reducer is obtained. The obtained slow-release-type polycarboxylic acid water reducer has the advantages that the slow release time is long, the slump degree can be maintained for a long time, and the slump result is excellent.
Owner:SHANXI SUNWAY INTION TRADE CO LTD
Novel lepidolite floating selecting method, collecting agent and application thereof
ActiveCN104741245AReduce consumptionImprove use valueFlotationWet separationAlcoholProcess engineering
The invention discloses a novel lepidolite floating selecting method, a collecting agent and application of the collecting agent. The novel lepidolite floating selecting method comprises the steps of removing sludge at three times; roughly selecting once; fine selecting twice; scavenging once; before floating selecting, hydrochloric acid is added to regulate the pH of ore pulp to be 2 to 3; the collecting agent is adopted during rough selecting and scavenging; the total quantity of used lauryl amine or coconut amine; the collecting agent is prepared from the following components in percentage by mass: 1% of lauryl amine or coconut amine, 1 to 5% of ethyl alcohol, 1 to 2% of hydrochloric acid, and 92 to 97% of water. The method has the characteristics of being simple in process, small in agent consumption, small in floating selecting time, and small in production cost; the recovery rate of lepidolite concentrate is more than 90%; the Li2O content in lepidolite concentrate product is more than 5.6%; therefore, the comprehensive utilization value of a lepidolite resource can be obviously increased; in addition ,the method is environmentally friendly, and is of significance on long-term sustainable development and practical significance.
Owner:JIANGXI XULI MINING IND CO LTD
Method for silt soil with ectopic activated magnesium oxide carbonization and solidification
ActiveCN108086297AAdjust dosage in real timeFlexible ratioSludge treatment by de-watering/drying/thickeningSoil preservationSoil propertiesPrill
The invention discloses a method for silt soil with ectopic activated magnesium oxide carbonization and solidification, and belongs to the field of hydraulic and civil engineering. The method includesthe steps of a sludge pretreatment, a uniform mixing of a curing agent, a silt granulation, a carbon dioxide carbonization, a waste gas / waste liquid collection, and a resource utilization. The supplyof the curing agent is regulated by actual measure a water content rate, and a diameter of a grain and a carbon dioxide pressure are regulated according to a soil property, so that a full mixing of the silt and the curing agent and the rapid carbonization of magnesium oxide solidified the sludge grains are realized. Dust and carbon dioxide are absorbed during the operation process to avoid secondary pollution. The method is safe, simple, low in carbon, environmental, and high in continuous operation rate, and the problem of sludge treatment and engineering application is solved. The silt carbonized grains have the advantages of low moisture content, high hardness, high shear strength, large friction coefficient and the like. The silt carbonized grains can be used as a filler such as a roadbed, an airport runway and an engineering backfill, and the reclamation of the slit / sludge and the carbon dioxide is realized. The method for the silt soil with the ectopic activated magnesium oxidecarbonization and solidification has great significance of the engineering construction.
Owner:SOUTHEAST UNIV
Assembled-type aluminum alloy bridge deck slab-steel girder combined structure
InactiveCN102877411AReduce weightHigh specific strengthBridge structural detailsBridge materialsScrew jointParent material
The invention relates to a steel-aluminum alloy combined structure, and in particular discloses an assembled-type aluminum alloy bridge deck slab-steel girder combined structure and connecting mode. The combined structure comprises an assembled-type aluminum alloy bridge deck slab and a steel girder; the connecting mode comprises an aluminum alloy bridge deck slab-steel girder connecting structure (high-strength bolt connection) and aluminum alloy bridge deck slab connecting construction (a stainless steel screw joint), and the assembled-type connection prevents the reduction of the intensity of an aluminum alloy parent material due to welding. The aluminum alloy bridge deck slab-steel girder combined structure provided by the invention has the advantages that the structure is light in weight, durable, easy to machine, high in toughness, rapid to construct, free from maintenance and the like, can be widely applied to damaged bridge deck modification, bridge building, dangerous bridge modification, pedestrian bridge and emergency engineering, and generates favorable social and economic benefits.
Owner:HUNAN UNIV
Triple utilization device and method for exhaust steam waste heat produced during superheat steam drying of sludge
ActiveCN105254147AHigh heat and mass transfer coefficientLarge specific heat capacitySludge treatment by de-watering/drying/thickeningSludgeCyclonic separation
Owner:NANCHANG HANGKONG UNIVERSITY
Fabricated concrete composite wallboard structure
InactiveCN105569260AImprove lateral force resistanceIncrease overturning forceBuilding componentsLine tubingWhole body
The invention provides a fabricated concrete composite wallboard structure. The fabricated concrete composite wallboard structure comprises an outer wallboard arranged towards the outside of a building, an inner wallboard arranged towards the inside of the building, and a reinforcing rib located between the outer wallboard and the inner wallboard, wherein the outer wallboard, the reinforcing rib and the inner wallboard are tied to form a whole body via a net rack; a functional compound layer is adhered to the outer surface of the outer wallboard; a part extending out of the outer wallboard, the reinforcing rib and the inner wallboard of the net rack is combined with cast-in-place concrete to form a hidden beam; a core hole used for reducing self weight of the structure is formed in the reinforcing rib along a vertical direction; a pipeline channel arranged along an axial direction of the core hole and used for laying pipelines is arranged in the core hole; and / or the core hole is also filled with core hole filling materials used for preserving heat and insulating heat; a pipeline box corresponding to the pipeline channel is pre-buried in the inner wallboard. Through type and quantity of the core hole filling materials, different heat preservation requirements in southern and northern regions are met; type and thickness of sound absorbing layers can be adjusted to meet the sound insulation requirement of the building, so that the application range of the multifunctional fabricated concrete composite wallboard is extended.
Owner:CENT SOUTH UNIV +1
Nano-virus isolation spraying agent for mask
The invention relates to the field of health and medical treatment, in particular to a nano-virus isolation spraying agent for a mask. The nano-virus isolation spraying agent is a new material for spraying on the surface of a common mask to be converted into a medical protective mask and is a spraying product and technology for transforming the surface of the common mask into a medical bacterial isolation mask after spraying and is an upgraded product of the medical protective mask. The nano-virus isolation spraying agent is prepared from the following raw materials in percentage by weight: electrostatic nano-fiber particles, tourmaline, an adhesive and the balance of water or alcohol. The nano-virus isolation spraying agent can be used for conventional common masks made of different materials, the application range is wide, the common masks have the virus protection function and the PM2.5 blocking capacity, haze gas is effectively prevented from invading, and repeated use of the masksis not affected.
Owner:通化名成电瓷电器有限公司
Graphene grafted nitrogen, phosphorus and silicon synergistic halogen-free flame retardant and preparation method thereof
ActiveCN109180952AAchieve halogen-free synthesisGive full play to the multiple synergistic flame retardant effectIn situ polymerizationNitrogen
The invention belongs to the technical field of fire retardants and mainly relates to a graphene grafted nitrogen, phosphorus and silicon synergistic halogen-free flame retardant and a preparation method thereof. The preparation method comprises the following steps: compounding 3-aminopropyl-triethoxysilane into octa-aminopropyl caged silsesquioxane through a hydrolytic condensation polymerizationprocess; preparing graphene oxide after chemically oxidizing and peeling graphene through an improved hummers process; compounding 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and graphene oxide into a grafted product 1 with an reactivity functional group through an in situ polymerization process; grafting the octa-aminopropyl caged silsesquioxane and the grafted product 1 into the graphenegrafted nitrogen, phosphorus and silicon synergistic halogen-free flame retardant through the in situ polymerization process. The preparation method for the graphene grafted nitrogen, phosphorus andsilicon synergistic halogen-free flame retardant provided by the invention has the advantages of simple preparation process, safety, environmental friendliness, and the like; the graphene grafted nitrogen, phosphorus and silicon synergistic halogen-free flame retardant can be widely used for inflaming retarding in the fields of electronics, automobiles, cables, packaging, aviation, and the like; the graphene grafted nitrogen, phosphorus and silicon synergistic halogen-free flame retardant has a bright application prospect.
Owner:SICHUAN UNIV
Photocatalyst with function of catalytically oxidizing alcohol to form aldehyde in high-selectivity manner, and preparation and application of photocatalyst
ActiveCN107790159AImprove photocatalytic activityRealize full-band absorptionCatalyst activation/preparationCarbonyl compound preparation by oxidationAlcoholBismuth oxychloride
The invention relates to the technical field of nanometer photocatalysts, in particular to a photocatalyst with a function of catalytically oxidizing alcohol to form aldehyde in a high-selectivity manner, and preparation and application of the photocatalyst. Palladium nanometer particles are uniformly loaded on the surfaces of bismuth oxychloride (BiOCl) ultrathin nanometer sheets to form the photocatalyst. The thicknesses of the BiOCl ultrathin nanometer sheets are 3-10 nm, the diameters of the BiOCl ultrathin nanometer sheets are 50-100 nm, the particle sizes of the palladium nanometer particles are 2-10 nm, and the mass fraction of the palladium nanometer particles in the photocatalyst is 1-3 wt%. The photocatalyst, the preparation and the application have the advantages that sunlight in full wave bands can be absorbed by the photocatalyst, separation of photo-induced carriers can be improved, the surface catalytic activity can be greatly improved, and the photocatalytic efficiencycan be comprehensively improved; the photocatalyst with the function of photocatalytically selectively oxidizing the alcohol to form the aldehyde is high in catalytic efficiency and product selectivity as compared with other types of photocatalysts.
Owner:永州盛业有机科技有限公司
Method for synthetizing 3,5-dichloroaniline
InactiveCN103508901AReduce pollutionWith sustainable developmentOrganic compound preparationAmino compound preparationO-nitrochlorobenzeneChlorobenzene
The invention discloses a method for synthetizing 3,5-dichloroaniline by using industrial production residues, namely meta-position oil, of p-nitrchlorobenzene and ortho-nitrochlorobenzene by two steps of chlorination and reductive dechlorination. The method adopts the following technical scheme: adding an organic solvent to nitrochlorobenzene meta-position oil as a raw material, directly producing a quintozene mixture by one-step chlorination under the effect of a catalyst, reacting for 0.5-10 hours under the condition of 10-180 DEG C, and then cooling to 30 DEG C; filtering out quintozene, and putting into an autoclave after washing into a neutral state by hot water; carrying out dechlorination reduction reaction under the effects of an organic solvent and the catalyst, wherein the reaction temperature is 60-200 DEG C, the reaction pressure is 1-20 MPa, and the reaction time is 1-20 hours; cooling to room temperature after the reaction is ended; leading in oxygen or air to stir after blowing off; filtering and distilling under reduced pressure to remove the solvent, so as to obtain the product 3,5-dichloroaniline, wherein the yield is 80-90%. Waste materials are changed into precious materials by a synthetic route adopted by the technology disclosed by the invention; the target of zero emission is achieved; the method has the advantages of sustainable development, energy conservation and consumption reduction, and small environmental pollution.
Owner:CHINA PETROLEUM & CHEM CORP +1
Process for separating and utilizing mixing components of o-, m-, and p-nitrochlorobenzene
InactiveCN101289396AEasy to separate and purifyImprove use valueOrganic chemistryOrganic compound preparationChemistryZero emission
The invention discloses a separation and utilization method for mixed component of O-Nitrochlorobenzene, meta-nitrochlorobenzene, paranitrochlorobenzene. The separation and utilization method takes the industrial production residues of the paranitrochlorobenzene, O-Nitrochlorobenzene as starting material, and the starting material is chloridized to obtain 2, 3-dichloronitrobenzene products and the mixture of 2, 4-dichloronitrobenzene, 2, 5-dichloronitrobenzene and 3, 4-dichloronitrobenzene with catalytic function of metal halides; wherein, the mixture of dichloronitrobenzene is carried out fluoro-reaction. with anhydrous potassium fluoride in DMF with the existence of phase-transfer catalyst, 2, 4-difluoronitrobenzene product and the mixture of 2-fluorine-5-chlorine nitrobenzene and 3- fluorine -4-fluoride nitrobenzene are obtained; wherein, the obtained mixture acted by the catalytic agent carries out chlorination reaction to replace nitro group; 2,4-dichlorofluorobenzene is obtained by distillation to the generated product. The technique of the invention adopts the synthetic routes which change waste into valuables, the goal of zero emission is achieved, and the method has the advantages of sustainable development, saving energy, lowering consumption and small environmental pollution.
Owner:浙江省常山长盛化工有限公司
High-temperature insecticidal weeding ploughing machine
The invention discloses a high-temperature insecticidal weeding ploughing machine, which comprises a driving head (2), a crawler wheel (19), a crawler (27), a driving wheel (16) and a carriage (3). The high-temperature insecticidal weeding ploughing machine is characterized in that a grass crushing structure (1) is arranged in front of the head; the head is connected with the carriage through a towing frame (10); the carriage is divided into a transmission area, a soil rotating area (3-3) and a stir-frying area (3-7) by a division board (3-4), an upper heat insulation board and a lower heat insulation board; a soil inlet and a soil outlet are arranged at the bottom of the carriage; a generator (25) is fixed in the soil rotating area; a soil turning device (4) is arranged in the soil rotating area through a soil turning chute (8); the soil turning device is connected with a conveyor (5) through a pull rod; an extruding and bundling mechanism (6) is arranged behind the top of the conveyor; a plurality of stir-frying soil layers which are arranged up and down are arranged below the extruding and bundling mechanism; the temperature pressure meters, a water tap, a fire nozzle and a camera are arranged above the inner wall of the carriage; the carriage is also provided with a water storage tank (9), an air storage tank (15) and an oil tank (17); a switch of the carriage is connectedwith a main control platform in the head through a lead.
Owner:四川省南充市登科农业机械科技有限公司
Nitrogen-phosphorus-silicon modified graphene halogen-free flame retardant polymer composite material and preparation method thereof
The invention belongs to the technical field of macromolecular materials, and relates to a nitrogen-phosphorus-silicon modified graphene halogen-free flame retardant polymer composite material and a preparation method thereof, wherein the composite material is prepared from the following substances in parts by weight: 60-90 parts of a polymer, and 10-40 parts of a nitrogen-phosphorus-silicon modified graphene flame retardant. All the components are weighed according to the weight percentage and are mixed uniformly, and then the mixture is added into a twin-screw extruder, melted and mixed andthen subjected to injection molding into corresponding sample strips by an injection moulding machine, or the mixture is melted and blended by an internal mixer and is subjected to compression moulding forming by a mould with a certain size on a plate vulcanizing machine, or a method of solidifying moulding by a curing agent is adopted. The nitrogen-phosphorus-silicon modified graphene halogen-free flame retardant polymer composite material provided by the invention has the advantages of high charring property, and excellent flame retardancy and thermal stability, and can be applied to flame retardancy of materials such as electric cables, automobiles and packages.
Owner:SICHUAN UNIV
High-starch-content film blowing composite material and preparation method thereof
PendingCN110655686AGood component compatibilityImprove mechanical propertiesLow-density polyethyleneVegetable oil
The invention relates to the technical field of biodegradable composite materials, and in particular relates to a high-starch-content film blowing composite material and a preparation method thereof.The high-starch-content film blowing composite material comprises the following raw materials in parts by weight: 35-50 parts of starch, 20-40 parts of low-density polyethylene, 10-20 parts of an epoxy vegetable oil plasticizer, 0.5-2 parts of an internal lubricant, 0.1-1 part of an external lubricant, 0.5-1 part of a coupling agent, 3-10 parts of a compatilizer and 0.2-0.5 part of an antioxidant.The high-starch composite material disclosed by the invention is high in starch content, low in cost and good in component compatibility, the mechanical property and the biodegradability of the material are remarkably improved, and the high-starch composite material has excellent characteristics of sustainable development and can be processed into a product by adopting processes such as mould pressing, extrusion and injection molding on universal plastic processing equipment.
Owner:浙江华发生态科技有限公司
Method for preparing biomass fuel oil molecules from biomass platform compound through hydrogenation
ActiveCN110117266AHelps ease harsh conditionsExtend your lifeOrganic chemistryMolecular sieve catalystsVernolic acidPropanoic acid
The invention provides a method for preparing gamma-valerolactone, valeric acid and valerate from biomass platform molecules. According to the method, the gamma-valerolactone is prepared with levulinate as the reaction raw material, the valeric acid and valerate are prepared with the gamma-valerolactone or levulinate as the raw material, and the process of preparing the gamma-valerolactone from the levulinate, preparing the valeric acid and valerate from the gamma-valerolactone through hydrogenation or efficiently preparing the valeric acid and valerate from the levulinate at high selectivityand high yield through one step is realized. Valerate compounds can serve as biological fuel oil and have high compatibility with an existing fuel oil system; the valeric acid and valerate are prepared through the reaction, and the method has the remarkable advantages that the raw materials serve as the biomass resources and the atom economy is good. Meanwhile, compared with other technologies ofpreparing the valeric acid and valerate with levulinic acid as the raw material, the method has the advantages that the method is simple in reaction process, high in target product yield and mild in reaction condition and medium, and a catalyst is simple in preparing process and stable.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Method for ensuring high sulfur yield and uniform distribution of sulfur content during electroslag remelting process of sulfur-bearing steel
The invention provides a method for ensuring high sulfur yield and uniform distribution of the sulfur content during the electroslag remelting process of sulfur-bearing steel. The method comprises the following steps: an electroslag remelting process is adopted, the sulfur-bearing steel is used as a consumable electrode, returned slag and new remelted slag are used as electro slag, the moving of sulfur in the sulfur-bearing steel to the electro slag can be inhibited during the remelting process, and the loss of sulfur during the electroslag remelting process of the sulfur-bearing steel is reduced, so that the sulfur retaining purpose is achieved, wherein the returned slag is electro slag recovered after the electroslag remelting process of the sulfur-bearing steel. When the electro slag of the sulfur-bearing steel is remelted by the method, the fluctuation range of the sulfur content in an obtained steel ingot is controlled to be seven per mille, the sulfur retaining rate is controlled to be more than 84%, the sulfur retaining effect is good, the sulfur content in the steel ingot is uniformly distributed, the favorable and reliable performance of the sulfur-bearing steel is ensured, and the yield of the sulfur-bearing steel is improved.
Owner:宝武特冶航研科技有限公司
Novel absorption material and preparation method and use thereof
InactiveCN101422721AActivated adsorption activitySmall particle sizeOther chemical processesPyrophylliteStrong acids
The invention discloses a novel absorbing material and a preparation method thereof. The preparation method comprises the steps: pyrophyllite mineral powder is steeped in a strong acid solution with the concentration of 0.01 to 7 mol per liter until the color of the strong acid solution is darkened, the solution is water rinsed repeatedly until the rinsing solution reaches the pH value of 7, the solution is filtered, and filter mass is parched at the temperature of 60 to 100 DEG C, thus obtaining the novel absorbing material. The natural mineral absorbing material of the invention that is prepared by the main raw material of pyrophyllite can realize synthesized utilization of mineral resources, has simple preparation method and remarkable effect, can be used for absorbing environmental water body pollutants that contain methylene blue (MB), Cr<6+> or Pb<2+> in water processing and achieve remarkable effect, and has low wastewater purifying cost and high efficiency.
Owner:ZHEJIANG UNIV OF TECH
Dual utilization device and method for exhaust steam waste heat produced during superheat steam drying of sludge
ActiveCN105254148AHigh heat and mass transfer coefficientLarge specific heat capacitySludge treatment by de-watering/drying/thickeningCycloneSludge
The invention relates to a dual utilization device and method for exhaust steam waste heat produced during superheat steam drying of sludge The device comprises a shaftless screw feeder, air valves, a heater, a double-shaft stirring dryer, a sludge particle forming machine, a net belt dryer, a tail gas washing tower, cyclone separators (A and B), fans (A and B) and a heat exchanger, wherein the shaftless screw feeder, the double-shaft stirring dryer, the sludge particle forming machine and the net belt dryer are sequentially connected, and a material channel is formed; the heater, the double-shaft stirring dryer, the cycle separator A, the fan A and the air valve B are sequentially connected to form an internal circulation air channel; the shaftless screw feeder, the cyclone separator B, the heat exchanger and the tail gas washing tower are sequentially connected to form an external air channel; the heat exchanger, the fans and the net belt dryer are combined for drying. The device and the method have the advantages that dual utilization of exhaust steam waste heat is realized, the device and the method are efficient and energy-saving, and condensation can be effectively prevented; zero-pollution discharge of waste water and waste gas is realized; formed sludge can be used for preparing fertilizers, and reutilization of the sludge is realized.
Owner:NANCHANG HANGKONG UNIVERSITY
Garbage incineration fly ash hazard-free treatment and heavy metal recycling method
ActiveCN107716519AHarmlessReduce heavy metal contentSolid waste disposalTransportation and packagingPersulfateSulfide
The invention belongs to the technical field of environment engineering and particularly relates to a method for separating and recycling heavy metal from garbage incineration fly ash and conducting hazard-free treatment on the fly ash. The method comprises the steps that after the household garbage incineration fly ash is diluted through an acidic sulphur oxidation bacteria culture medium solution, sulphur balls are added, so that acidic leach liquor containing the heavy metal is obtained; after a proper amount of alkali is added for pH adjustment, hydrogen sulfide gas is introduced into theacidic leach liquor; the hydrogen sulfide gas reacts with the heavy metal, so that sulfide precipitation is formed; and after solid-liquid separation is completed, recycling is conducted in the form of the sulfide precipitation, so that the pure heavy metal is obtained. The treatment process is implemented at the normal temperature and normal pressure; energy consumption is low; the process is simple; the large-scale engineering potential is achieved; a biological leaching energy source substance, namely sulphur, is recycled to be reused, so that the post-acidification problem of the treated fly ash is solved; the heavy metal entering the leach liquor is subjected to reduction and precipitation conducted through sulfate, so that the heavy metal is separated or recycled or removed effectively; and the sulfate and pH problems are solved at the same time.
Owner:HENAN UNIV OF SCI & TECH
Carbonization repair method of volatile organic compound-heavy metal compound polluted soil
InactiveCN108672489AHigh evaporative extraction rateImprove extraction efficiencyContaminated soil reclamationResource utilizationCarbonization
The invention discloses a carbonization repair method of volatile organic compound-heavy metal compound polluted soil, and belongs to the field of polluted soil repair. The method comprises the stepsof compound polluted soil pretreatment, organic pollutant separation and extraction, curing agent mixing, granulation of polluted soil uniform mixtures, carbonization of polluted soil uniform mixed granules, storage and maintenance of carbonized polluted soil particles, waste liquid / waste gas collection, waste heat utilization and resource utilization. The heating time, the curing agent mixing quantity and the carbonization time are adjusted by actually measuring the organic matter components and concentrations of the compound polluted soil, heavy metal components and contents, temperature andthe water content, and therefore the optimal work efficiency is achieved. In the working process, volatile organic pollutants are extracted, and dust, waste gas and carbonized heavy metal are absorbed. The method is safe, rapid, low-carbon, environment-friendly and high in continuous working rate, produced carbonized polluted soil particles are high in hardness and strength and low in leaching efficiency and can be used as roadbeds, airfield runways, engineering backfill and the like, and great engineering construction significance is achieved.
Owner:NANJING FORESTRY UNIV
Method for preparing porous nano-silicon carbide by using silicate glass as raw material
ActiveCN107416837ALow costExcellent heat responseMaterial nanotechnologyCarbon compoundsSolubilityReaction temperature
The invention discloses a method for preparing nano-silicon carbide by using silicate-based glass as a raw material. The method comprises the following steps: carrying out mechanical ball milling on glass; carrying out uniform ball milling and mixing on the ball-milled powdery glass, magnesium powder, coal tar and molten salt according to a certain proportion, and placing into a container for reaction under inert gas; then pickling the reaction product to obtain nano-silicon carbide. The method disclosed by the invention has the advantages that steps are simple and easy and the source of raw materials is wide; further, the Mg-containing molten salt is added as a heat absorbent to control the reaction temperature and increase the solubility and wettability of magnesium so as to enable the reaction to be more sufficient and the reactants not to agglomerate easily. The three-dimensional porous silicon carbide prepared by the method has the advantages of relatively high purity, uniform particle, high specific surface area (180-260m<2> / g), rich mesoporous structure and the like, and has wide application prospects in the aspects of radiation resistance, radiation resistance and wave absorption.
Owner:WUHAN UNIV OF SCI & TECH
Assembly type reinforced concrete wall structure based on thermal bridge partition technology
ActiveCN105735517AEnvironmentally friendlyHigh degree of mechanizationWallsHeat proofingSocial benefitsReinforced concrete
The invention provides an assembly type reinforced concrete wall structure based on the thermal bridge partition technology. The assembly type reinforced concrete wall structure comprises an exterior wall panel, a wall panel intermediate layer, an interior wall panel and trusses. A wall is of a sandwich structure formed by the exterior wall panel, the wall panel intermediate layer and the interior wall panel from outside to inside. Chord members of the trusses are embedded in the exterior wall panel and the interior wall panel correspondingly. Web members of the trusses penetrate through the wall panel intermediate layer, and the two ends of the web members are connected with chord members of the exterior wall panel and chord members of the interior wall panel correspondingly. The web member of each truss is provided with a web member connecting part used for cutting off a thermal bridge between the exterior wall panel and the interior wall panel. The assembly type reinforced concrete wall structure based on the thermal bridge partition technology has the advantages of being capable of cutting off the thermal bridge, integral in structure and function, good in integrity and the like, overcomes the defects of an existing assembly type concrete wall panel system and has good economic and social benefits.
Owner:CENT SOUTH UNIV +1
Whole growth period full nutritional compound fertilizer dedicated for tomatoes
InactiveCN106588476AMeet the fertilizer requirements for good growthAddressing nutrient supply imbalancesSuperphosphatesMagnesium fertilisersAgricultural scienceEcological environment
A whole growth period full nutritional compound fertilizer dedicated for tomatoes comprises a seedling stage compound fertilizer, a florescence compound fertilizer and a fruit-bearing stage compound fertilizer, is made according to fertilizer requirement laws of tomatoes at different growth periods, completely meets fertilizer requirements for good growth of tomatoes at each growth period, can fundamentally solve the problem that the nutrient supply is unbalanced, the quality is poor and the yield is low in the tomato production process at present, can remarkably increase the yield and quality of tomatoes, replaces an original organic fertilizer to be used as a base fertilizer, reduces the fertilizer usage amount, effectively improves the soil environment, increases the fertilizer absorptivity of tomatoes, reduces pesticide residue, and preserves the ecological environment. A simple and easy fertilizing method can increase the use ratio of water resources and decrease the incidence, also can be easily mastered by most of agriculture operating personnel to reduce the work intensity, and has the advantages of sustainable development, safety and high efficiency; at the same time, the whole growth period full nutritional compound fertilizer dedicated for tomatoes can make up defects of existing products in the market for the full nutritional compound fertilizer dedicated for tomatoes in the whole growth period.
Owner:宁夏回族自治区农垦事业管理局农林牧技术推广服务中心
Treatment system for carbonizing and curing silt soil by heterotopic active magnesium oxide
ActiveCN108128991AAdjust dosage in real timeGuaranteed work efficiencyFixation/solidifcation sludge treatmentProcess orientedSludge
The invention discloses a treatment system for carbonizing and curing silt soil by heterotopic active magnesium oxide. The system comprises a pretreatment device, a curing agent supply device, a uniform mixing device, a granulation device, a carbonization device and a collection device. Through the sequential working of the devices, the sufficient blending of silt and a curing and the quick carbonization of a magnesium oxide cured silt granule are completed; thus, the problems of the difficult carbonization and curing of high-water-content and low-permeability silt / sludge soil are solved; multiple sensors particularly arranged in the system are cooperatively used; the supply quantity of the curing agent can be regulated through actually measuring a water content; the particle size of the granule and the pressure of carbon dioxide are regulated according to the property of the soil; the work efficiency is greatly improved; all the devices are more systematized and process-oriented; milldust and the carbon dioxide can be absorbed in the use process of the devices; the secondary pollution is avoided; the carbonized granule of the silt, generated after the devices finish working, is high in hardness and high in shear strength, and can be used as a filling material for a roadbed, an airport runway, engineering backfilling and the like, and the treatment system has great engineeringconstruction significance for the reutilization of silt / sludge in engineering.
Owner:SOUTHEAST UNIV
Carbon dioxide automatic control recycling device for fermentation tank
InactiveCN107653130AReduce distractionsSmooth drainageBy-product recoveryAutomatic controlCo2 storage
The invention relates to a carbon dioxide automatic control recycling device for a fermentation tank. The carbon dioxide automatic control recycling device is characterized by comprising a recycling device and an automatic control device; the recycling device comprises a bubble trap, a sealing tank, a washing tower, a first steam-water separator, a CO2 compressor, a cooler, a second steam-water separator, a filter, a condenser and a CO2 storage tank, the automatic control device comprises a control system, a liquid level meter, a compressor pressure sensor, a CO2 concentration detector, a CO2storage tank stored pressure sensor and an alarm apparatus. The carbon dioxide automatic control recycling device for the fermentation tank carries out full-automatic control and monitoring, can givean alarm to remind staff to carry out processing operation, recycle CO2, lower the CO2 exhaust amount and have a social significance in promoting sustainable development, improving the environment, increasing economic benefit and the like.
Owner:张晶
Transportation device and system used for consolidated goods
The invention discloses a transportation device and system for consolidated goods. The device comprises a first box body and at least one blocking assembly mounted in the first box body, wherein the first box body is provided with a first accommodating space; the first box body comprises a first side surface and a second side surface opposite to the first side surface; the blocking assembly comprises a connector, a blocking part and at least one fixed part, wherein the connector is mounted in the first box body, and can move along a preset track between the first side surface and the second side surface; the blocking part is wound or partially wound on the connector, and comprises a free end and a fixed end opposite to the free end, and the fixed end is fixedly connected to the connector;and the fixed part is fixedly connected to the free end. While the connector moves to any position in the preset track, the blocking part can be pulled out, so that the free end is fixedly connected to the inner bottom end of the first box body through the fixed part.
Owner:SHANGHAI MARITIME UNIVERSITY
High-specific-capacity metal organic negative electrode material of secondary ion battery and preparation method thereof
ActiveCN106129414AHigh specific capacityEffective combinationCell electrodesSecondary cellsAlcoholElectrical battery
The invention provides a high-specific-capacity metal organic negative electrode material of a secondary ion battery. A preparation method of the metal organic negative electrode material comprises the following steps: (1) mixing carboxylic acid containing a benzene ring, LiOH.H2O and metal salt according to the mol ratio of (0.8-1.2) to (0.5-1) to (0.25-1); then dissolving the mixture into absolute ethyl alcohol and ultrasonically stirring for 1h to 1.5h; (2) sealing a reaction solution obtained by the step (1) at 110 DEG C to 120 DEG C and reacting for 12h to 14h; and (3) washing a reactant obtained by the step (2) with de-ionized water and the absolute ethyl alcohol for 3-4 times respectively, centrifuging, drying an obtained solid at 70 DEG C to 80 DEG C for 6h to 8h and milling to obtain the product. By adopting organic salt formed by synthesizing metal salt and organic matters, organic energy storage and inorganic energy storage can be combined together, so that the prepared negative electrode material has a high specific capacity, high coulomb efficiency and excellent electrochemical circulating performance.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
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