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41results about How to "Secondary pollution meets" patented technology
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Device and method applicable to anaerobic treatment of solid and liquid mixed sewage of breeding field
InactiveCN101643273AImprove passabilityReduce churnWater treatment parameter controlGas production bioreactorsSlagMethanation
The invention relates to a device and a method applicable to anaerobic treatment of solid and liquid mixed sewage of a breeding field, the treatment device comprises a main body of a reactor, a three-phase separator, a water distributor and a liquid level control system, wherein, the main body of the reactor is cylindrical; the structural setting of the water distributor can adapt to fecal residues and sewage containing higher suspended solids; the three-phase separator adopts the design of a dual-layer structure and is not provided with a biological filter part for improving the passing capacity of sewage and dirt and avoiding blockage phenomenon; the liquid level control system regulates a sludge interface by controlling pressure of a gas chamber, water inlet and slag discharge; the mainbody of the reactor is provided with an acidified sludge layer, a methanation sludge layer and a floating sludge layer from the bottom and is equipped with sludge internal circulation, thereby reducing sludge loss amount and greatly improving treatment capacity; and the treatment device can operate stably under high loads of 15-22kgCOD / m<3>.d at normal temperature. The device is the novel devicewhich is applicable to intensive resource utilization of the fecal residues and the sewage of the breeding field and characterized by low investment, stable operation, simple operation, low treatmentcost and the like.
Owner:TIANJIN INST OF AGRI RESOURCES & ENVIRONMENTAL
High-melt-strength anti-impact polypropylene foamed board and preparation and application thereof
The invention relates to a high-melt-strength anti-impact polypropylene foamed board. The foamed board is prepared through foaming with high-melt-strength anti-impact polypropylene as matrix resin. The high-melt-strength anti-impact polypropylene comprises a random copolymerization polypropylene continuous phase and a rubber dispersed phase of propylene-ethylene copolymer, wherein the content of room temperature dimethylbenzene soluble substances of the high-melt-strength anti-impact polypropylene is larger than 10 wt% and smaller than 35 wt%, and the ratio of Mw of room temperature trichlorobenzene soluble components to Mw of room temperature trichlorobenzene insoluble components is larger than 0.4 and smaller than 1. The invention further relates to a preparation method of the foamed material. The foamed material has higher melt strength, so foamed products with higher foaming ratio and better surface smoothness can be obtained, and the foamed material also has the characteristics of being high in rigidity, high in toughness and the like. Meanwhile, the foamed board has the advantages of being good in high-and-low-temperature anti-impact performance, high in physical heat resistance, high in percentage of close area, good in heat insulation and sound isolation performance, controllable in foaming ratio and foam pore structure and the like.
Owner:CHINA PETROLEUM & CHEM CORP +1
Preparation method of polypropylene foamed beads
ActiveCN104974369AImprove performanceMeet the requirements of weight reduction and light weightPolymer scienceElectron donor
The invention provides a preparation method of polypropylene foamed beads. The preparation method comprises the steps of preparing polypropylene according to a following method, adding organic peroxides into obtained polypropylene serving as matrix resin, and foaming by virtue of a physical foaming agent, so as to obtain the polypropylene foamed beads, wherein the method of polypropylene comprises the step of carrying out propylene polymerization reaction including two or more stages in two or more reactors which are connected in series for operation, wherein external electron donors used in the two stages are respectively alkane compounds and diether compounds. According to the preparation method, high-melt-strength polypropylene with wide molecular weight distribution is taken as a raw material, the organic peroxides are taken as a surface modifier of EPP beads, and the closed-hole-structured polypropylene foamed beads having the advantages that the diameters of foamed holes are uniform, the foamed holes are compact and the hole distribution is uniform can be prepared; the polypropylene foamed beads can be applied to the fields such as automobile manufacturing, packaging, building insulation, sport equipment, living goods, aerospace and the like.
Owner:CHINA PETROLEUM & CHEM CORP +1
Device for removing heavy metals and polycyclic aromatic hydrocarbons in bottom sediment of river channels and method thereof
ActiveCN104876409AGood controlAchieve reuseWater contaminantsBiological sludge treatmentHeavy metalsPollution
The invention relates to a device for removing heavy metals and polycyclic aromatic hydrocarbons in bottom sediment of river channels and a method thereof and belongs to the field of river-channel pollution treatment in environmental protection. The device comprises an electrolysis device, a biological fuel cell and a galvanometer, wherein the electrolysis device comprises a cathode area, a bottom-sediment area and an anode area; the negative electrode of the biological fuel cell is arranged at the outer side of a round drum, the positive electrode of the biological fuel cell is arranged at the inner side of the round drum, and a compost layer is arranged between the negative electrode and the positive electrode; a cathode rod is arranged in the cathode area, the top part of the cathode rod is electrically connected with the positive electrode, the negative electrode is connected with one end of the galvanometer, and the other end of the galvanometer is electrically connected with a positive rod; a substance exchange film is arranged between the anode area and the bottom-sediment area, a substance exchange film is also arranged between the bottom-sediment area and the cathode area, the top part of a cathode sampling area is provided with a cathode sampling port, the top part of a middle sampling area is provided with a middle sampling port, and the top part of an anode sampling area is provided with an anode sampling port. The device and the method have the advantages that the energy is saved and simultaneously the purpose of using wastes to treat wastes is achieved.
Owner:NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
Defoaming method adopting porous ceramics
InactiveCN101791494AWill not cause secondary pollutionDoes not create environmental requirementsFoam dispersion/preventionArchitectural engineeringMechanical engineering
The invention belongs to the technical fields of chemical engineering production, civil production and living, and relates to a defoaming method adopting porous ceramics. The method is characterized in that: the porous ceramics which are subjected to hydrophobic treatment and have an aperture smaller than the diameter of foams are adopted; the placement mode is selected according to the orientation for generating the foams and the flowing direction of fluid, so that the foams are torn and broken in the process of flowing and running through the porous ceramics; and finally the defoaming is realized. The method adopts the defoaming mode, can fully realize that the foams are torn and broken in the process of running through the porous ceramics, and finally realizes defoaming. The technologyhas universal applicability in the fields with defoaming requirement in production and living, is safe and environment-friendly, and has low cost and convenient and simple operation.
Owner:DALIAN UNIV OF TECH +1
Preparation method of phosphorus-free reverse osmosis scale inhibitor
InactiveCN112239276APrevent scalingAvoid foulingScale removal and water softeningEthanesulfonic acidImide
The invention discloses a preparation method of a phosphorus-free reverse osmosis scale inhibitor. The preparation method comprises the following steps: weighing a certain amount of maleic anhydride and putting maleic anhydride into a four-neck flask; adding a certain amount of ammonia water in proportion, starting a stirrer, and heating to evaporate water molecules and redundant ammonia molecules; raising the temperature to 120 DEG C, enabling the reaction solution to become turbid, adding a catalyst until the solution becomes light red and then becomes orange, and increasing the viscosity; heating to 150 DEG C, keeping the temperature for a period of time, and cooling to room temperature to obtain a brittle orange solid, namely polysuccinimide; suspending polysuccinimide in water, adding2-aminoethanesulfonic acid and sodium hydroxide, and stirring in an ice bath to obtain a sulfonic acid group-containing polyaspartic acid grafted copolymer; forming the reverse osmosis scale inhibitor by compounding a sulfonic acid group-containing polyaspartic acid graft copolymer, a scale inhibitor and a dispersing agent according to a certain ratio. The invention has the advantages that the membrane surface is prevented from scaling, the reverse osmosis membrane is prevented from being polluted and blocked, the components do not contain phosphorus, and the environment is not polluted.
Owner:山东普尼奥水处理有限公司
Ecological and environment-friendly toilet treating device
PendingCN106927636AImprove processing qualityPlay the role of temporary bufferTreatment with anaerobic digestion processesMultistage water/sewage treatmentTreated waterBioreactor
The invention discloses an ecological and environment-friendly toilet treating device. The ecological and environment-friendly toilet treating device comprises a wastewater tank, an adjusting water tank, an anaerobic fluidized bed, an internal-circulating aerobiotic bioreactor, an ozone tower, an activated carbon adsorption tower, a lower clear-water tank and an upper clear-water tank. The wastewater treatment technologies such as the anaerobic fluidized bed treatment technology, the internal-circulating aerobiotic bioreactor treatment technology, the ozone treatment technology and the activated carbon purification treatment technology are integrated in the mode that the wastewater tank, the adjusting water tank, the anaerobic fluidized bed, the internal-circulating aerobiotic bioreactor, the ozone tower, the activated carbon adsorption tower, the lower clear-water tank and the upper clear-water tank are sequentially connected up and down, high-concentration wastewater is collected, a water body is subjected to anaerobic treatment, aerobiotic treatment, disinfected, sterilized and filtered, and colorless, tasteless and standard reclaimed water is formed and then returns for flushing a toilet; in the running process, water is saved, externally-discharged wastewater and externally-discharged sludge are avoided, a medicament does not need to be added, and secondary pollution is avoided; treated water is filtered and disinfected, the reusing requirements are met, the occupied area is small, and the integration level of the device is high.
Owner:昆明重工佳盛慧洁特种设备制造有限公司
Comb honey box with honeycomb box body
A comb honey box with a honeycomb box body, which is used for producing, storing and selling natural and original ecological comb honey, is made of stainless steel plates and is characterized in that the honeycomb box body is hexagonal, no irregularly-shaped cell is arranged at the periphery of the box body; two honeycomb box covers have hexagonal frames and respectively cover the upper and the lower part of the honeycomb box body, so as to realize that a high-temperature sterilizing box body can be used and high-temperature wax sticking in the box body can be performed; when the comb honey box is in use, a plurality of comb honey boxes are combined together on the same bee movable frame so as to form an intact bee cell, and the thickness of the combining parts between box bodies is only 0.4-2 millimetres, which can be easily accepted by the bees; unsealed cells can not be left at the internal periphery of the box body, so as to avoid the problems that a honey-extractor is required to extract the honey, and secondary pollution is caused.
Owner:CHEGNGDU CHENG KE TROTHER APICULTURE COMPANY
Catalyst with sulfur resistance and function of catalyzing oxidation of NO and preparing method and application of catalyst
ActiveCN110404525AImprove sulfur resistanceSimple processGas treatmentDispersed particle separationHazardous substanceEvaporation
The invention relates to a catalyst with sulfur resistance and the function of catalyzing oxidation of NO and a preparing method and application of the catalyst. The catalyst with sulfur resistance and the function of catalyzing oxidation of NO is activated carbon modified by boric acid, wherein the mass content of boron is 0.01-2%. The catalyst is obtained by mixing an aqueous solution of the boric acid with activated carbon powder, conducting rotary evaporation, conducting calcining under a nitrogen atmosphere, and then conducting cooling. The preparing method is simple in technological process, easy to operate and low in cost, and mass production is facilitated; required raw materials are clean, environmentally friendly, and free of hazardous substances, do not cause secondary pollutionand conform to the idea of green chemistry; the prepared modified activated carbon has good sulfur resistance when used for NOCO, and the activity time is prolonged by 25-300% compared with that before modification.
Owner:INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
Polypropylene composition, polypropylene resin granules, polypropylene foamed beads, preparation method thereof and polypropylene foamed bead forming body
The invention relates to the technical field of high polymer materials, in particular to a polypropylene composition, polypropylene resin granules, polypropylene foamed beads, a preparation method thereof and a polypropylene foamed bead forming body. According to the polypropylene composition, the composition is prepared from 100 parts of polypropylene, 0.1 to 0.3 part of antioxidant and 0.25 to 10 parts of mixed olefin-maleic anhydride copolymer microspheres, wherein the particle size of the mixed olefin-maleic anhydride copolymer microspheres is 0.4-3.9 [mu] m. The polypropylene foamed beadsprepared from the composition containing the mixed olefin-maleic anhydride copolymer microspheres have a more compact and uniform cell structure, uniform pore size, complete morphology, no rupture, relatively low density, relatively high compression strength and relatively good thermo-oxidative aging resistance. Besides, the foamed beads are of a non-crosslinked structure so that the foamed beadscan be recycled, secondary pollution is avoided, and the requirement of circular economy is met.
Owner:CHINA PETROLEUM & CHEM CORP +1
Impact-resistant polypropylene foaming material with high-melt strength and preparation method thereof
The invention discloses an impact-resistant polypropylene foaming material with high-melt strength. According to the invention, impact-resistant polypropylene with high-melt strength taken as matrix resin is obtained by foaming, The impact-resistant polypropylene with high-melt strength comprises a propylene homopolymer component and an ethylene / 1-butylene copolymer component; wherein the propylene homopolymer component comprises at least a first propylene homopolymer and a second propylene homopolymer; the ethylene content in the ethylene / 1-butylene copolymer is 20-45 wt%; the weight ratio of the ethylene / 1-butylene copolymer component to the propylene homopolymer component is 11-80: 100; and the ratio of room-temperature trichlorobenzene soluble Mw of the material to room-temperature trichlorobenzene insoluble Mw of the material is greater than 0.5 and is smaller than or equal to 1. The invention also relates to a preparation method of the foaming material. The foaming material has the characteristics of good shock resistance at high and low temperature, high physical heat resistance, high closed porosity, good insulation and sound insulation performances, controllable foaming multiplying power and foam structure, and easy recovery and utilization.
Owner:CHINA PETROLEUM & CHEM CORP +1
Preparation method and application of corn stalk core regenerated cellulose immobilized nano-CuS/TiO2 composite aerogel
InactiveCN111215143AReduce recombination rateHigh catalytic efficiencyWater/sewage treatment by irradiationWater treatment compoundsRegenerated celluloseMalonic acid
The invention discloses a preparation method of corn stalk core regenerated cellulose immobilized nano-CuS / TiO2 composite aerogel. The preparation method comprises the following steps: shearing air-dried corn stalks for later use, carrying out cellulose extraction on a medullary core by using a malonic acid / hydrogen peroxide method, and dissolving the freeze-dried cellulose in a DMAc / LiCl system;dropwise adding an aqueous CuCl2 and Na2S solution into a TiO2 suspension, reacting, centrifuging, cleaning and drying to obtain CuS / TiO2 particle powder; and dispersing the CuS / TiO2 particle powder into DMAc, then adding the obtained dispersion into a glycerin-containing cellulose dissolved solution, uniformly mixing, dropwise adding blended cellulose into a template, regenerating in water, washing and freeze-drying to obtain the CuS / TiO2 loaded regenerated cellulose composite aerogel. The composite aerogel prepared by the method has the advantages of light weight, rich pore channels, reproducibility, wide photocatalytic response interval, high efficiency of catalytically degrading dye organic matters and the like, and has a good application prospect in the aspect of industrial dye wastewater degradation.
Owner:KUNMING UNIV OF SCI & TECH
Nano-cus/tio immobilized on corn stover and regenerated cellulose 2 Preparation method and application of composite aerogel
InactiveCN111215143BHigh porosityImprove toughnessWater/sewage treatment by irradiationWater treatment compoundsMalonic acidDyeing wastewater
The invention discloses a kind of corn straw regenerated cellulose solid-supported nano-CuS / TiO 2 The preparation method of the composite aerogel is to cut and prepare air-dried corn straw, use the malonic acid / hydrogen peroxide method to extract cellulose from the pith core, and dissolve the freeze-dried cellulose in the DMAc / LiCl system; To TiO 2 Add CuCl dropwise into the suspension 2 and Na 2 S aqueous solution, centrifuge, wash and dry after reaction to obtain CuS / TiO 2 Granular powder; disperse it in DMAc, then add it to the cellulose solution containing glycerol, mix evenly, drop the blended cellulose into the template, regenerate in water, wash and freeze-dry to obtain CuS / TiO 2 Regenerated cellulose composite aerogel; the composite aerogel prepared by the method of the present invention has the advantages of light weight, rich pores, renewable, wide photocatalytic response range, high catalytic degradation efficiency of dye organic matter, and has good performance in the degradation of industrial dye wastewater. application prospects.
Owner:KUNMING UNIV OF SCI & TECH
Medical water supplier
InactiveCN105540956AImprove cooling effectImprove water qualityWater treatment parameter controlWater/sewage treatment by electrochemical methodsWater qualityRefrigeration
The invention relates to medical water treatment equipment, in particular to an energy-saving and sanitary medical water supplier with a rapid refrigeration function. The medical water supplier comprises a water inlet, a pure water outlet, a filtering device, an electronic refrigeration device and a booster bump, and further comprises a water draining control device, wherein the filtering device, the electronic refrigeration device and the booster bump are arranged between the water inlet and the pure water outlet; the electronic refrigeration device is arranged between the pure water outlet and a water tank, and comprises two sets of refrigeration equipment, namely an electronic refrigeration circuit and a circulating water cooling mechanism; the circulating water cooling mechanism is connected in series onto a water channel between post-treatment devices and the water inlet; the electronic refrigeration device has an open-type ice container; the ice container is vertically arranged under the water tank, thereby being convenient to disassemble and clean; the water draining control device comprises an electromagnetic valve I arranged between the electronic refrigeration device and the pure water outlet as well as an electromagnetic valve II arranged between the water tank and the pure water outlet. The medical water supplier provided by the invention has an electronic refrigeration function; and by adoption of the medical water supplier, water is protected from secondary pollution due to the ice container.
Owner:朱湘陵
Preparation method of spherical filtering material for eliminating sulfur dioxide and mouth and nose mask using filtering material
InactiveCN107803183AReduce energy consumptionLow costGas treatmentOther chemical processesNoseFilter material
The invention discloses a spherical filtering material for eliminating sulfur dioxide and also relates to a mouth and nose mask formed by using the filtering material. A preparation method comprises the following steps of (a) uniformly mixing kaolin, active coke, 5A zeolite and modified fly ash according to a weight ratio of (75 to 200):(90 to 180):(135 to 360):(60 to 170) to obtain a mixture; (b)rolling the mixed raw materials obtained in the step (a) into balls under the water adding wetting conditions; performing drying firing solidification to become spherical filtering materials with certain intensity and adsorption performance. Under the cooperated effects of the raw materials, a specific pelletizing process is matched, so that the adsorption area and shaping intensity of the spherical filtering materials reach the optimum; the prepared spherical filtering material has a high removal rate on sulfur dioxide in air; the filtering material is used in the mouth and nose mask, and achieves strong adsorption performance and good ventilation performance.
Owner:广州尊卓环保科技有限公司
A device and method for removing heavy metals and polycyclic aromatic hydrocarbons in river sediment
ActiveCN104876409BAchieve reuseAchieve the effect of treating waste with wasteWater contaminantsBiological sludge treatmentElectrolysisCompost
Owner:NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
Stepping type automatic cleaning device of plastic bowls
ActiveCN103587756BCoherent movementHigh degree of automationPackaging protectionStructural engineeringManufacturing engineering
The invention discloses a step-by-step automatic cleaning device for plastic bowls, which is characterized in that it includes a plastic bowl conveyor belt (1), an automatic bowl-dividing mold setting mechanism (2), a limit baffle (3), and a cleaning water spray mechanism ( 4), drying mechanism (5), bowl pressing and fixing mechanism (6), bowl turning mechanism (7) and plastic bowl automatic filling and sealing machine stepping conveyor belt (8); each power mechanism is connected with the numerical control mechanism. The step-by-step automatic cleaning device for plastic bowls of the present invention has a reasonable structure, not only solves the problem of preventing secondary pollution, but also greatly improves production efficiency, and can meet the needs of automatic filling production.
Owner:GUANGXI WUZHOU DOUBLE COIN IND CO LTD
Self-circulation type novel sludge degradation bioreactor and operation method thereof
PendingCN109665686AAvoid sludge depositsReduce energy consumptionWater treatment parameter controlSpecific water treatment objectivesStatorSludge
The invention discloses a self-circulation type novel sludge degradation bioreactor and an operation method thereof. The bioreactor comprises a base seat, a crushing mechanism, a circulation mechanism, a reaction container and an aeration mechanism, wherein the crushing mechanism comprises a motor, a rotor, a stator and a fixing shaft sleeve; the motor is fixedly mounted on the base seat, and an output shaft of the motor is connected with the rotor through a coupling; the stator is adjustably mounted in the fixing shaft sleeve, and the rotor is rotatably mounted in the stator; a feeding port,a circulating liquid inlet and a liquid outlet are formed in the reaction container, and the liquid outlet of the reaction container is communicated with the liquid inlet of the fixing shaft sleeve; acirculation pipe of the circulation mechanism communicates the circulation liquid outlet of the fixing shaft sleeve with the circulation liquid inlet of the reaction container; the aeration mechanismcomprises an air source and an aeration pipe; and an air outlet of the air source is communicated with an air inlet of the aeration pipe, and the air outlet of the aeration pipe is led into the reaction container. The device can improve the degradation efficiency.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
Organic sulfur conversion catalyst for liquefied gas
ActiveCN104549297AHigh non-hydroconversion activitySimple production technologyDispersed particle separationGaseous mixture working upThiolCarbonyl sulfide
The invention relates to an organic sulfur conversion catalyst for liquefied gas and belongs to the technical field of liquefied gas refining. The organic sulfur conversion catalyst for liquefied gas disclosed by the invention comprises the following components in percentage by weight: 10-20 percent of Ni, 5-10 percent of Na2O and the balance of a carrier, wherein the carrier refers to gamma-Al2O3. According to the catalyst disclosed by the invention, the organic sulfur conversion rate in the liquefied gas is high, namely the thiol conversion rate is more than or equal to 95 percent, the carbonyl sulfide conversion rate is more than or equal to 98 percent, and the carbon disulfide conversion rate is more than or equal to 90 percent.
Owner:CHONGQING DIZHIJING TECH
A quick-drying sports towel
ActiveCN112568767BImprove the shortcomings of poor waterproof effectImprove washing resistanceRadio/micro wave fibre treatmentSynthetic resin layered productsPolymer scienceNatural fiber
The invention discloses a quick-drying sports towel. The quick-drying sports towel is composed of an antibacterial and quick-drying layer and a moisture-absorbing and perspiration-wicking layer that are laminated in sequence; the antibacterial and quick-drying layer is a mixture of modified antibacterial natural fibers and hydrophobic bamboo fibers. The moisture-absorbing and sweat-wicking layer is prepared by the following preparation method: S1. Weigh the following raw materials in parts by weight: 45-62 parts of Coolmax fiber, 32-59 parts of chitin fiber, and 2-5 parts of spandex; S2, the Coolmax fiber, chitin fiber and spandex weighed in the step S1 are weaved to obtain a fabric layer; S3, the fabric layer obtained in the step S2 is put into a hydrophilic finishing solution for dipping for 20 to 30min, and microwaved for 4 minutes after dehydration. ~6min, drying, and then the moisture-absorbing and perspiration-wicking layer is obtained. The invention has excellent moisture absorption and perspiration wicking effect, antibacterial property and quick-drying property, keeps the towel cool all the time, greatly improves the comfort of the fabric, feels soft, is green and environmentally friendly, has biodegradability, and is durable.
Owner:苏州市蔚然纺织品有限公司
Propylene butene high melt strength polypropylene foam board or sheet and preparation method thereof
The invention provides a polypropylene foamed board or sheet. The foamed board or sheet is prepared by foaming a base resin high-melt-strength polypropylene with a foaming agent, wherein the high-melt-strength polypropylene has the following characteristics: the melt index MFR is 0.2-10 g / 10 minutes, the molecular weight distribution Mw / Mn is 6-20, the content of substances with the molecular weight of greater than 5 million is greater than or equal to 0.8 wt%, the M[z+1] / Mn is greater than or equal to 70, and the butylene content is 0.1-15 wt%. The high-melt-strength polypropylene with wide molecular weight distribution is utilized as the raw material to implement stabilization of the polypropylene raw material, so that the foaming window is effectively enlarged, and the technique is easy to adjust; the method can be used for preparing the polypropylene foamed board or sheet with the density of 0.2-0.9 g / cm<3> and the thickness of 0.1-400mm, which has the advantages of smooth surface crust, uniform pore diameter and close-pore hard structure; and the polypropylene foamed board or sheet can be widely used in the fields of thermal insulation tableware, automobile interior ornaments, architectural moldboards, camping supplies, decorating material interlayers, product damping packages and the like.
Owner:CHINA PETROLEUM & CHEM CORP +1
Preparation method of composite nano carbon material and composite nano material
PendingCN114195126AHigh yieldHigh purityMaterial nanotechnologyMulti-walled nanotubesPtru catalystCarbon nanotube
Owner:INNOV-CARBON TECH LTD
A high-melt strength impact-resistant polypropylene foam material and its preparation method
Owner:CHINA PETROLEUM & CHEM CORP +1
Splicing type clothes cleaning and drying machine
PendingCN114808344ASolve secondary pollution and cross contaminationClean clothesOther washing machinesWashing machine with receptaclesHot blastPublic place
The invention relates to a splicing type clothes cleaning and drying machine which comprises a control host and a plurality of cleaning and drying machine bodies, and the cleaning and drying machine bodies are detachably spliced and fixed. Each cleaning and drying machine body comprises a machine body, a washing water system, a hot air system and a control auxiliary machine; the washing water system comprises a water inlet pump, a first heating device and a washing water nozzle; the hot air system comprises an air supply fan, an exhaust fan and a second heating device; the control host is electrically connected with the control auxiliary machine of each cleaning and drying machine body; the control auxiliary machine is electrically connected with the water inlet pump, the first heating device, the air supply fan, the exhaust fan and the second heating device and controls the water inlet pump, the first heating device, the air supply fan, the exhaust fan and the second heating device to be turned on or turned off. Clothes to be washed are hung in the inner container, high-temperature and high-pressure water flow generated by the washing water spray head is used for washing the clothes, the purpose of cleaning the clothes is achieved, the clothes are prevented from making contact with structural parts of the equipment, secondary pollution can be effectively avoided, and the use requirement of the equipment in public places is met.
Owner:GUANGZHOU SHIYUAN ELECTRONICS CO LTD +1
Filtering material used for water-treatment made from waste mud and its prodn. method
Owner:HARBIN INST OF TECH
Polyethylene resin composition, polyethylene resin pellets, polyethylene foam beads, preparation method and molded body thereof
The invention relates to the field of expanded polyethylene, in particular to a polyethylene resin composition, a method for preparing polyethylene resin pellets, polyethylene expanded beads and a molded body thereof. The composition contains 100 parts by weight of polyethylene base resin, 0.1-0.3 parts by weight of antioxidant, 0.25-10 parts by weight of mixed olefin-maleic anhydride copolymerized microspheres, wherein the particle diameter of mixed olefin-maleic anhydride copolymerized microspheres 0.05-2μm. The foamed beads prepared from the composition of the present invention through the method of the present invention have a denser and more uniform cell structure, uniform pore size, complete appearance without rupture, and lower density. In addition, the foamed beads have a non-crosslinked structure, so they can be recycled without causing secondary pollution, and meet the requirements of circular economy. Formings made from the expanded beads of the present invention have higher compressive strength and better resistance to thermal and oxidative aging.
Owner:CHINA PETROLEUM & CHEM CORP +1
Polypropylene composition, polypropylene resin pellets, polypropylene foamed beads, preparation method thereof, and polypropylene foamed beads molded body
The invention relates to the technical field of polymer materials, in particular to a polypropylene composition, a polypropylene resin pellet, a polypropylene foamed bead, a preparation method thereof and a molded body of the polypropylene foamed bead. A polypropylene composition, said composition contains 100 parts of polypropylene, 0.1-0.3 part of antioxidant, 0.25-10 parts of mixed olefin-maleic anhydride copolymerized microspheres; wherein, mixed olefin-maleic anhydride copolymerized microspheres The particle size is 0.4‑3.9μm. The polypropylene foamed beads prepared from the composition comprising mixed olefin-maleic anhydride copolymerized microspheres of the present invention have a denser and more uniform cell structure, a uniform pore size, a complete shape without rupture, and a lower density , Higher compressive strength and better thermal oxygen aging resistance. In addition, the foamed beads have a non-crosslinked structure, so they can be recycled without causing secondary pollution, and meet the requirements of circular economy.
Owner:CHINA PETROLEUM & CHEM CORP +1
Liquefied gas organic sulfur conversion catalyst
ActiveCN104549297BSimple production technologyEasy access to production technologyDispersed particle separationGaseous mixture working upThiolCarbonyl sulfide
Owner:CHONGQING DIZHIJING TECH
Novel electromagnetic sterilizing device for building air sterilization
PendingCN111536615AAddress workplace safety issuesSimple preparation processMechanical apparatusLighting and heating apparatusAir decontaminationConstruction engineering
The invention discloses a novel electromagnetic sterilizing device for building air sterilization. The novel electromagnetic sterilizing device for building air sterilization comprises a fan module arranged in a building ventilation system, and an air purification module arranged in the building ventilation system, correspondingly arranged with the fan module and used for sterilizing the gas in the building ventilation system. The device has no consumable or secondary pollution, can meet the requirement of air disinfection and purification in facilities such as isolation wards, shelter hospitals and the like, can also meet the urgent requirement of safe reworking and reproduction in the later period of the epidemic situation, and has the advantages of simple matched part manufacturing process, low mass production cost and high capacity amplification, so that the safety problem of a building working environment after reworking can be solved, and cross infection of air in hospital buildings can be avoided.
Owner:TSINGHUA UNIV
Defoaming method adopting porous ceramics
InactiveCN101791494BWill not cause secondary pollutionDoes not create environmental requirementsFoam dispersion/preventionArchitectural engineeringMechanical engineering
The invention belongs to the technical fields of chemical engineering production, civil production and living, and relates to a defoaming method adopting porous ceramics. The method is characterized in that: the porous ceramics which are subjected to hydrophobic treatment and have an aperture smaller than the diameter of foams are adopted; the placement mode is selected according to the orientation for generating the foams and the flowing direction of fluid, so that the foams are torn and broken in the process of flowing and running through the porous ceramics; and finally the defoaming is realized. The method adopts the defoaming mode, can fully realize that the foams are torn and broken in the process of running through the porous ceramics, and finally realizes defoaming. The technologyhas universal applicability in the fields with defoaming requirement in production and living, is safe and environment-friendly, and has low cost and convenient and simple operation.
Owner:DALIAN UNIV OF TECH +1
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