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699results about How to "Reduce production" patented technology

Environment-friendly degradable modified composite material, preparation method and application

InactiveCN119661999AGuaranteed degradabilitySafeguard the environmentPlasticulturePlasticizer
The invention belongs to the technical field of biodegradable materials, and particularly relates to an environment-friendly degradable modified composite material, a preparation method and application. The material comprises PBAT, PBS, PLA, an inorganic mineral filler, natural plant fibers, PBAT-PTMO, nano-silica, an auxiliary agent and a plasticizer. In the preparation process, PLA is prevented from being hydrolyzed in vacuum drying, calcium carbonate and nano silicon dioxide are preheated and activated, natural plant fibers are dispersed through steam explosion and ethanol treatment, and raw material pretreatment comprises high-speed mixing and agglomeration breaking and medium-speed secondary premixing so as to realize uniform distribution. The co-rotating twin-screw extruder accurately controls the temperature, the speed, the rotating speed and the length-diameter ratio, and ensures melting plasticizing, uniform mixing and stable extrusion molding. According to the invention, by adopting accurate proportioning of multiple raw materials and a modification treatment process, the properties of mechanics, degradation, processing and the like of the material are synergistically improved, and the material is widely applied to multiple fields such as packaging bags, disposable tableware and agricultural plastic mulching films.
Owner:SHANXI HUAYANG BIODEGRADABLE NEW MATERIALS CO LTD

Sulfur-manganese composite autotrophic denitrification filler as well as preparation method and application thereof

The invention discloses a sulfur-manganese composite autotrophic denitrification filler as well as a preparation method and application thereof, and belongs to the technical field of environmental functional materials and polluted water treatment. The sulfur-manganese composite autotrophic denitrification filler contains manganese salt, a sulfur-based component and a cement-based component, the manganese salt comprises one or more of manganese carbonate, calcium manganese ore and rhodochrosite; the sulfur-based component comprises sulfur and sulfur manganese ore; the cement-based component comprises cement, fly ash pottery sand, silica fume, blast furnace slag and metakaolin; the cement comprises one or more of Portland cement, iron aluminate cement and sulphoaluminate cement. The nitrogen removal efficiency of the sulfur-manganese composite autotrophic denitrification filler is superior to that of a sulfur autotrophic denitrification system, the sulfate concentration and nitrite nitrogen accumulation in effluent are remarkably reduced, the service life of the filler is prolonged, and the efficient utilization rate of the material is improved.
Owner:NANJING UNIV YANCHENG ENVIRONMENTAL PROTECTION TECH & ENG RES INST +1

False-inclined inlet upward layered filling mining method for in-vein accurate mining of gentle-inclined medium-thickness ore body

The invention relates to the technical field of underground mining of ore deposits, in particular to an upward layered filling mining method for a gently-inclined medium-thick ore body in-vein accurate mining pseudo-inclined approach. According to the method, the interior of a middle section is divided into panels in the pseudo-inclined direction of the ore body trend, and one panel is arranged between two in-vein accurate mining ramps; the in-vein accurate mining slope ramp is arranged on an ore body bottom plate and is arranged in a pseudo-inclined mode relative to the inclination angle direction of an ore body. And according to stoping conditions, false-inclined drifts with different gradients are arranged in the subsections to carry out layered mining from bottom to top. According to the method, pseudo-inclined drift mining is adopted, the number of stopes in the subsections is increased, and the mining-cutting ratio is reduced. The height of the drift of the pseudo-inclined chamber is lower than the height of the subsection roadway of the subsection or the level of the subsection roadway of the subsection, and the work amount of retaining wall manufacturing is reduced in the first and second layered stoping and filling processes. No connection way is arranged between the subsection roadway and the ore body, and pseudo-inclined drifts with different gradients are directly used for mining in subsections, so that the number of stopes is effectively increased, and the mining intensity is improved.
Owner:YUNNAN PHOSPHATE CHEM GROUP CORP

Quantum state preparation method, device, equipment and medium

The invention discloses a quantum state preparation method and device, equipment and a medium. The method comprises the following steps: setting a target quantum state to be prepared; setting a Hamiltonian, wherein the Hamiltonian is a negative value of an outer product of a left vector and a right vector of the target quantum state; constructing a variable component sub-line including training parameters according to the target quantum state; substituting a preset parameter value as a training parameter into the variable component sub-line so as to output a training quantum state evolved by the variable component sub-line; measuring an expected value of the training quantum state, which is evolved by the variable component sub-line, about the Hamiltonian; training a training parameter of the variable component sub-line through a classical optimizer until the training parameter or an expected value is converged to a set threshold value; comparing the training parameter or the expected value with a set threshold value; and outputting the training quantum state evolved by the variable component sub-line under the convergence condition as a to-be-prepared target quantum state. The preparation of any quantum state can be efficiently and accurately realized.
Owner:GUOKAIKE QUANTUM TECH (ANHUI) CO LTD +2

Preparation method and application of biological composite carbon source

The invention belongs to the field of sewage treatment, and particularly relates to a preparation method and application of a biological composite carbon source, and the preparation method comprises the following steps: mixing waste beer yeast liquid and biodiesel byproducts, adding an enzyme preparation, carrying out mixing reaction, and separating out supernatant to obtain the biological composite carbon source. The biological composite carbon source disclosed by the invention is low in production cost, rich in nutritional ingredients and high in adaptability, and has long-term effectiveness, high denitrification rate and denitrification effect.
Owner:SHANGHAI LIANLI ENVIRONMENT CO LTD

Sulfonator for preparing fatty alcohol polyoxyethylene ether sodium sulfate and production process thereof

The invention provides a sulfonator for preparing fatty alcohol polyoxyethylene ether sodium sulfate and a production process of the sulfonator, relates to a novel falling film sulfonator, and belongs to the technical field of manufacturing of reaction devices for producing anionic surfactants by sulfating gas SO3. The invention provides a novel falling film sulfonator capable of being used for producing fatty alcohol polyoxyethylene ether sodium sulfate with ultralow dioxane content, the sulfonator improves the structure of a reaction tube, and a separation layer is formed between SO3 diluted gas and an organic material liquid film by introducing a balance wind concept, so that the content of the dioxane in the organic material liquid film is reduced, and the content of the dioxane in the organic material liquid film is reduced. According to the falling-film sulfonation tube, the sharp temperature interval at the upper part of the falling-film reactor tends to be mild, and the sulfonation / sulfation reaction rate in the length of the whole falling-film sulfonation tube tends to be balanced, so that the output of dioxane is reduced, the product quality is improved, the subsequent post-treatment of AES products is avoided, and the production energy consumption is reduced; the device is easy to operate and has certain practicability.
Owner:ZANYU TECH GRP CO LTD +2

Niobium-tungsten alloy extrusion processing method and product

The invention provides an extrusion processing method of a niobium-tungsten alloy cast ingot and a niobium-tungsten alloy extrusion processing product, the extrusion processing method comprises the following steps: carrying out stepped heating on the niobium-tungsten alloy cast ingot with an anti-oxidation coating by using a medium-frequency induction furnace to obtain a blank to be extruded, the lowest holding temperature of the stepped heating is 800 DEG C + / -20 DEG C, the highest holding temperature is 1200 DEG C-1300 DEG C, and the total duration of the stepped heating is 30 min-45 min; and the blank to be extruded is subjected to non-sheath extrusion machining in the extrusion cylinder, and the niobium-tungsten alloy extrusion machining product is obtained. The non-sheath extrusion processing method provided by the invention has the advantages that the production period is shortened, the production loss is reduced, and the surface quality, the straightness and the processing plasticity of an extrusion processing product are improved.
Owner:NINGXIA ORIENT TANTALUM INDUSTRY CO LTD

Solar greenhouse system for solar long-term soil-hydrated salt heat storage and supply

The utility model relates to the technical field of solar greenhouse energy conservation, in particular to a solar long-term soil-hydrated salt heat storage and supply solar greenhouse system which comprises a greenhouse, a solar heat collection circulating unit, a soil-hydrated salt heat storage and supply unit and an automatic control unit. According to the system, solar heat collection and soil-hydrated salt composite heat storage and supply technologies are innovatively combined, and seasonal effective storage and utilization of solar energy are achieved. In the non-heating season with rich solar energy, the system efficiently collects solar energy through the heat collector and converts the solar energy into heat energy, and then heat energy is stored through the soil-hydrated salt mixed material and the high heat storage performance and excellent heat stability of soil. In the heating season, the stored heat energy is released to the greenhouse, and a stable heat source is provided for crop growth. The system has the advantages of being high in energy efficiency, environmentally friendly, sustainable and the like, is suitable for sunlight greenhouses under various weather conditions, and has important significance in promoting green agriculture and renewable energy source application.
Owner:LANZHOU UNIVERSITY OF TECHNOLOGY

Purification method and preparation method of long-acting side chain

The invention relates to the technical field of medicine refining, in particular to a purification method and a preparation method of a long-acting side chain. According to the embodiment of the invention, the long-acting side chain is solidified and crystallized by controlling the pH value, extracting and salifying to obtain the crystal substance in a salt form with higher purity, and then the long-acting side chain in a free state is obtained after salt dissolving, extracting, washing and desalting, so that the long-acting side chain is higher in purity and low in impurity content. Meanwhile, by adopting the purification method provided by the embodiment of the invention, the output of three wastes such as waste organic solvents, wastewater and solid wastes can be reduced, and the production cost is saved.
Owner:SICHUAN PU KANG PHARM CO LTD

Sulfate-containing waste liquid treatment system and method for acrylonitrile and acrylonitrile combination device

The invention provides a sulfate-containing waste liquid treatment system and a sulfate-containing waste liquid treatment method for acrylonitrile and a combination device thereof, the system comprises at least two sets of waste liquid treatment units and a set of flue gas treatment unit, sulfate waste liquid is divided into two strands to enter the two sets of waste liquid treatment units for combustion, waste heat utilization and quenching purification, the discharged sulfur-containing flue gas is collected and enters a set of flue gas treatment unit, the sulfur-containing flue gas subjected to deep cooling, demisting and drying can be directly used for producing high-purity sulfuric acid, and a two-end and one-tail mode is adopted, so that the operation flexibility of the system is improved, and the treatment pressure is reduced. In the waste liquid treatment unit, a high-temperature reaction device adopts segmented air distribution, so that sufficient combustion of waste liquid is ensured, and SO2 loss is reduced; a special temperature field and structural design in the waste heat boiler can prevent the heat exchange device from scaling and blocking; a venturi scrubber is adopted in the quenching purification device to quench the flue gas, and a protective liquid film is formed on the contact interface of the high-temperature flue gas and a liquid phase, so that the temperature of equipment is effectively reduced, and corrosion of the high-temperature flue gas is prevented.
Owner:SHANGHAI SHENGLANHUI TECHNOLOGY CO LTD

Benzyl alcohol rectification method and device capable of reducing generation of high-boiling-point substances

The invention relates to the technical field of benzyl alcohol preparation, and provides a benzyl alcohol rectification method and device capable of reducing generation of high-boiling residues, the rectification method comprises the following steps: S1, benzyl chloride and an alkali solution are subjected to a hydrolysis reaction, and then reaction liquid is subjected to oil-water separation to obtain an oil-phase material and a water-phase material; s2, adding the oil-phase material obtained in the step S1 into a stirring kettle, adding recycled water generated after desalting the water-phase material, stirring, and adding alkali liquor into the stirring kettle at the same time; and S3, carrying out oil-water separation on the oil-water mixture in the step S2, and transferring an oil phase into a rectifying tower for rectification. After oil-water separation of the reaction liquid, stirring an oil phase with recycled water in a stirring kettle to elute brine water droplets entrained by the oil phase, and adding a trace amount of strong alkali into the stirring kettle at the same time, so that the rectified raw oil carries water and the trace amount of strong alkali to be alkaline; hCl generated by hydrolysis of benzyl chloride is prevented from forming an acidic environment in a gas phase and a liquid phase of the whole tower, so that benzaldehyde and benzyl alcohol are prevented from generating a condensation reaction under an acidic catalysis condition to generate a high-boiling residue.
Owner:QIANJIANG XINYIHONG ORGANIC CHEM

Cleaning agent recycling system

The invention discloses a cleaning agent recycling system, and relates to the technical field of detergent recovery, the cleaning agent recycling system is characterized in that the inner side wall of a filtering tank body is fixedly connected with a ceramic filtering plate, the high-performance ceramic filtering plate is uniformly provided with ultra-micropores, the aperture of the ultra-micropores is less than or equal to 1nm, the top of the ceramic filtering plate is provided with a slope, and the top of the slope is provided with a water inlet. The outer side wall of the filtering tank body is fixedly communicated with a feeding pipe, the feeding pipe is positioned above the ceramic filtering plate, and the bottom of the filtering tank body is fixedly communicated with a return pipe; through cooperative use of the filtering tank body, the ceramic filtering plate, the slope and the feeding pipe, cleaning agent molecules can be accurately screened out conveniently according to the characteristics that the diameter of the cleaning agent molecules is smaller than 1 nm, and the diameter of oil dirt impurities, bacteria and the like cleaned by a cutter is larger than 1 nm, and meanwhile the oil dirt impurities, bacteria and the like are effectively blocked. Therefore, the cleaning agent and the oil dirt impurities can be fully separated, the filtering effect is improved, and the recycling rate of the cleaning agent is increased.
Owner:TECHMART (CHANGZHOU) LTD

Rapid self-cleaning fish barrel culture pond

The invention discloses a quick self-cleaning fish bucket culture pond which comprises a fish bucket pond, the fish bucket pond comprises a cylindrical bucket body and an inverted-cone-shaped bucket bottom, a sewage discharge pipe is arranged at the bottom of the inverted-cone-shaped bucket bottom, a water discharge pipe is arranged on the lower portion of the cylindrical bucket body, and a plurality of water pushing pipes are arranged on the outer side of the fish bucket pond. The bottom of the water pushing pipe is connected with an external water inlet pipe, a sewage draining siphon device is arranged in the middle of the fish barrel pool, and an opening is formed in the center of the bottom of the inverted-cone-shaped barrel bottom. Through the design of the cylindrical-conical combined working area of the fish bucket culture pond, the water pushing pipe and the pollution discharge siphon device of the fish bucket pond, fish excrement and residual feed can be quickly sucked, discharged and separated from culture water, and conversion of solid organic pollutants into water-soluble pollutants in the water is greatly reduced; meanwhile, a culture area and a pollutant precipitation and solid-liquid separation area generated in culture are combined into a whole, so that the construction space and the construction cost are greatly saved.
Owner:YUHUANG ECOLOGICAL TECHNOLOGY CO LTD

Method for extracting active ingredients of microbial fermentation plants for resisting wrinkles

The invention relates to the technical field of extraction of active ingredients of fermented plants, in particular to an extraction method of active ingredients of microbial fermented plants for resisting wrinkles, which comprises the following steps: step S1, preparing materials; step S2, primary fermentation extraction; step S4, secondary fermentation extraction; step S4, cell lysis; and step S5, filtering. According to the method, a mixed fermentation mode of lactobacillus plantarum and saccharomyces cerevisiae is used for plants to be extracted, in the fermentation process, foam and bubbles generated by fermentation are monitored and analyzed in combination with an image recognition technology to represent the fermentation process and the fermentation rate, the stirring rotating speed is adaptively adjusted according to the foam output, or the foam is discharged in time, so that the extraction efficiency is improved. The needed fermentation extraction effect and the minimum foam output are achieved, whether the fermentation extraction process tends to be stable or not is represented through the bubble generation frequency, fermentation extraction nodes are automatically and accurately determined, the stability of target active ingredients is guaranteed, the extraction rate is increased, and the active ingredients of fermented and extracted plants are prevented from being damaged.
Owner:SINO AMERICAN BIOTECH INC

A method for preparing low-temperature flue gas denitration catalyst using electrolytic manganese anode mud

The invention discloses a method for preparing a low-temperature flue gas denitration catalyst by utilizing electrolytic manganese anode mud, comprising the following steps: step one, material selection; step two, drying and grinding; step three, leaching; step four, solid-liquid separation; step five, multiple washing and filtering; wherein in the above step one, firstly, electrolytic manganese anode mud is selected as the raw material for preparing the low-temperature flue gas denitration catalyst; wherein in the above step two, the electrolytic manganese anode mud selected in step one is placed in a drying box for drying treatment. The invention has a simple synthesis method, and the raw materials used are from industrial waste residues, thereby reducing the impact on the environment. At the same time, the synthesized catalyst is conducive to efficient operation at ultra-low temperature, expanding the application scenarios of the catalyst, and at the same time, the electrolytic manganese anode mud is modified by soluble chloride salt, and the modification treatment of the electrolytic manganese anode mud is utilized, thereby greatly reducing the complexity of the subsequent process for preparing the catalyst.
Owner:THE UNIV OF NOTTINGHAM NINGBO CHINA

Locking and riveting equipment for fusible core

The invention relates to locking and point riveting equipment for a fusible core, which comprises a rack, a feeding assembly, two locking assemblies, two point riveting assemblies, an overturning assembly, a discharging assembly and an operating assembly for clamping the fusible core, the operation assembly clamps the discharged fusible core to operate in the sequence of the opening locking assembly, the riveting point assembly, the overturning assembly, the opening locking assembly and the riveting point assembly. The riveting point assembly comprises a four-claw air cylinder and four rivets, the four-claw air cylinder is arranged on the rack, the four rivets are arranged on four clamping claws of the four-claw air cylinder respectively, and the rivets are used for abutting against the side wall of the end cap and are ejected into the fusion tube. The fusible core has the effect of improving the connection strength of the fusion tube and the end cap in the fusible core.
Owner:MERSEN ELECTRICAL SYST (ZHEJIANG) CO LTD

Electro-absorption modulated laser chip and manufacturing method thereof

The invention discloses an electro-absorption modulated laser chip and a manufacturing method thereof, and relates to the technical field of semiconductor devices.The chip comprises a substrate, a modulator layer, a passive waveguide layer, a laser layer, an amplifier layer, a wrapping layer and a contact layer, the passive waveguide layer is arranged in a spacer region between the laser layer and the modulator layer in a butt-joint growth mode, the amplifier region is arranged on the other side of the modulator layer, the laser layer is arranged in the laser region on one side of the passive waveguide layer in the spacer region in a butt-joint growth mode, and the amplifier layer is arranged above the passive waveguide layer in the amplifier region. The cladding layer and the contact layer are sequentially arranged above the functional layer, a mask is used for covering a specific area in the butt-joint growth process, and the mask is removed after growth; according to the technical scheme, the active gain material of the amplifier region can be manufactured on the passive waveguide material while the manufacturing steps are simplified, the optical signal loss is reduced, and the chip saturated light output power is improved.
Owner:WUHAN GUOKE OPTICAL SEMICON TECH CO LTD

Method for recovering nitric acid from nitrated yellow water

The invention belongs to the technical field of waste recycling, and particularly relates to a method for recycling nitric acid in acid yellow water based on nitration. The method for recovering nitric acid based on nitration acid yellow water comprises the following steps: stirring nitration acid yellow water and toluene or nitrotoluene and other organic extraction agents in a mixer, adding a certain amount of sulfamic acid, fully extracting, standing for layering, and removing the organic extraction agents through a stripping tower to obtain the nitric acid. The acid yellow water after extraction-steam stripping is sent to a nitric acid absorption-concentration tower to obtain concentrated nitric acid, and the concentrated nitric acid is recycled to a nitration reaction unit as a raw material.
Owner:WANHUA CHEMICAL(FUJIAN) ISOCYANATE CO LTD

Electric anastomat with manual reset structure

The utility model provides an electric anastomat with a manual reset structure, which relates to the technical field of surgical medical instruments and comprises a shell, a nail box component, a transmission component and a reset driving part. The nail box assembly is arranged in the shell; the transmission assembly is arranged on the support and comprises a first transmission part and a second transmission part, the second transmission part is connected with the nail box assembly, and the first transmission part drives the nail box assembly through the second transmission part; the reset driving part is movably arranged on the support, the reset driving part is provided with a working position, and when the reset driving part moves to the working position, the reset driving part is in transmission connection with the second transmission part and pushes the first transmission part to be separated from the second transmission part. According to the anastomat, the manual reset structure is simplified, the manufacturing and production assembly cost of the manual reset structure is reduced, and the anastomat has good industrial value and economic benefits.
Owner:MICONVEY TECH CO LTD

Clean production process of sulfur black dye

The invention discloses a clean production process of a sulfur black dye, which comprises the following steps: S1, uniformly mixing dinitrochlorobenzene and a sodium hydroxide aqueous solution, and carrying out hydrolysis reaction to obtain a sodium dinitrophenolate solution; s2, uniformly mixing part of the sodium dinitrophenolate solution with a catalyst and a solvent, and carrying out hydrogenation reaction by using hydrogen to obtain a sodium diaminophenol solution; and S3, taking the sodium diaminophenol solution, the residual sodium dinitrophenol solution and the sodium polysulfide solution, and carrying out condensation reaction to obtain the sulfur black dye. According to the production process, hydrogenation reduction clean production is adopted, the generation amount of three wastes can be greatly reduced, especially the amount of salt-containing wastewater can be reduced by 20-90%, the content of pollutants in residual liquid is low, treatment is easy, environmental pollution is reduced, the production period is short, the efficiency is high, the product quality is stable, the process control is simple and convenient, and the color fastness of the obtained sulfur black dye is higher.
Owner:ANHUI BAYI CHEM IND

Single battery and high-capacity battery

The invention discloses a single battery and a high-capacity battery. The single battery comprises a shell, an electrode assembly and a sealing unpacking piece, a one-way breathable film is arranged on the shell; the electrode assembly is positioned in the shell and is connected with a polar terminal at the top of the shell; a mounting part for mounting a heat exchange tube is arranged on the polar terminal; a sealed unpacking piece is arranged on the shell, and the sealed unpacking piece comprises an electrolyte additive which can be dissolved in the electrolyte and is made into a dissolving structure. The single battery provided by the invention is provided with the one-way gas-permeable membrane and the electrolyte additive to prepare a dissolving structure, so that secondary opening of the single battery during assembly of a high-capacity battery is avoided, and the assembly efficiency of the high-capacity battery is improved.
Owner:D AUS ENERGY STORAGE TECH (XIAN) CO LTD

Synthesis method of 2-chloro-4-nitro-6-bromo-aniline

The invention discloses a synthesis method of 2-chloro-4-nitro-6-bromo-aniline, and relates to the technical field of chemical industry of disperse dye intermediates. When 2-chloro-4-nitro-6-bromo-aniline is synthesized, silicon dioxide coated magnetic nanoparticles are firstly prepared, then doped heteropoly acid is prepared, and further modification is performed to prepare modified heteropoly acid; loading the modified heteropolyacid on the silicon dioxide coated magnetic nanoparticles to prepare a magnetic loaded heteropolyacid catalyst; according to the method, 2-chloroaniline is used as a raw material and is firstly nitrified and then brominated under the catalytic action of a magnetic supported heteropolyacid catalyst to obtain the product 2-chloro-4-nitro-6-bromo-aniline. The method for synthesizing the 2-chloro-4-nitro-6-bromo-aniline has the advantages of high raw material conversion rate, good selectivity, high product purity and small wastewater amount.
Owner:ZHEJIANG BOAO NEW MATERIALS CO LTD

Visual identification detection system based on rice seedlings

The invention discloses a visual identification detection system based on rice seedlings, relates to the field of visual identification detection of rice seedlings, and aims to overcome the defects of a rice transplanter operation detection method, assist a driver in mastering rice seedling leakage information, reduce manual monitoring on a rice transplanter and the like by a rice seedling transplanting and seedling leakage detection product. An MCU control board is arranged on the surface of the computing mainboard, a power switch and a function switch are embedded into the left end of the computing mainboard, the MCU control board is connected with an RDK X3 through a UART asynchronous transceiving transmitter, the MCU control board is connected with a GPIO small lamp board, an RTK board is arranged on the surface of the computing mainboard, and the RDK X3 is connected with a 4G module through a USB. The seedling leakage monitoring system of the rice transplanter can improve the agricultural production efficiency, reduce the agricultural production cost, improve the agricultural product quality and promote the agricultural intelligent development, and is of great significance to agricultural modernization.
Owner:HEILONGJIANG BAYI AGRICULTURAL UNIVERSITY

Single battery and high-capacity battery

The utility model discloses a single battery and a high-capacity battery. The single battery comprises a shell, an electrode assembly and a sealing unpacking piece, a one-way breathable film is arranged on the shell; the electrode assembly is positioned in the shell and is connected with a polar terminal at the top of the shell; a mounting part for mounting a heat exchange tube is arranged on the polar terminal; a sealed unpacking piece is arranged on the shell, and the sealed unpacking piece comprises an electrolyte additive which can be dissolved in the electrolyte and is made into a dissolving structure. The one-way breathable film and the electrolyte additive are arranged on the single battery to form a dissolving structure, so that secondary opening of the single battery during assembly of the high-capacity battery is avoided, and the assembly efficiency of the high-capacity battery is improved.
Owner:D AUS ENERGY STORAGE TECH (XIAN) CO LTD

Preparation method of cefazolin acid three-position intermediate TDA

The invention relates to preparation of a cefazolin compound, in particular to a preparation method of a cefazolin acid three-position intermediate TDA. The preparation method comprises the following steps: carrying out condensation reaction on 7-ACA and MMTD serving as raw materials, dimethyl carbonate serving as a solvent and a boron trifluoride dimethyl carbonate complex and glacial acetic acid serving as catalysts to obtain condensation reaction liquid; adding EDTA (Ethylene Diamine Tetraacetic Acid) and sodium pyrosulfite into water, carrying out stirring reaction, transferring the condensation reaction liquid into water, and continuously carrying out heat-preservation stirring, so as to obtain a hydrolysis reaction liquid; and adding a sodium carbonate solution into the hydrolysis reaction solution while stirring, adjusting the pH value, growing crystals, and then performing suction filtration, washing and drying to obtain a finished product. A boron trifluoride dimethyl carbonate complex-glacial acetic acid catalysis method is adopted, the product quality and yield are guaranteed in industrial production, meanwhile, the reagent usage amount and the waste liquid generation amount are reduced, the production cost and the environment pressure are reduced, normal reaction is maintained at normal pressure, and the reaction is prevented from being too severe.
Owner:YIYUAN XINQUAN CHEM

Finished woolen sweater fulling milling machine

The invention relates to the technical field of garment processing, and particularly discloses a woolen sweater finished product fulling milling machine which comprises a bottom box and an outer barrel, an inner barrel is concentrically arranged in the outer barrel, a plurality of rotating rods are uniformly arranged in the inner barrel in the circumferential direction, and extrusion cam columns spaced from the inner wall of the inner barrel are arranged on the rotating rods; the rear end, extending out of the inner cylinder, of the rotating rod is connected with a pinion, a large gear meshed with the pinion is fixedly arranged in the outer cylinder, a hollow rotating shaft penetrating through the large gear is arranged at the rear end of the inner cylinder, and multiple groups of rows of water permeable holes are evenly formed in the circumferential face of the inner cylinder. A water scraping plate is arranged on the outer circular surface of the inner cylinder between two adjacent groups of water permeable holes; according to the finished woolen sweater fulling machine disclosed by the invention, the fulling treatment speed and dehydration speed of the woolen sweater can be increased, the whole fulling treatment time of the woolen sweater is shortened, the working efficiency is improved, the woolen sweater can be in full contact with fulling liquid, and the fulling treatment uniformity and effect of the woolen sweater are ensured.
Owner:ANHUI HUACHAO CLOTHING CO LTD

Whitening and moisturizing essence as well as preparation process and application thereof

The invention provides whitening and moisturizing essence as well as a preparation process and application thereof, and belongs to the technical field of cosmetics. The essence is prepared from tranexamic acid, nicotinamide, macromolecular hyaluronic acid, micromolecular hyaluronic acid, hexapeptide-2, an althaea rosea flower extract, a rhodiola sachalinensis extract, a glycyrrhiza glabra extract, a coast pine needle extract, a polyhydric alcohol humectant, vegetable fat and the like. Wherein the hollyhock flower extract, the rhodiola sachalinensis extract, the glycyrrhiza glabra extract and the coast pine needle extract are respectively obtained by adopting a special enzymolysis method. The tranexamic acid and the nicotinamide are used for synergistically whitening, the hyaluronic acid, the polyhydric alcohols and the vegetable fat are used for jointly moisturizing, the plant extract is used for enhancing oxidation resistance, whitening and safety, the components are ensured to be uniform and stable through a reasonable preparation process, and the effect of the essence is favorably improved.
Owner:GUANGZHOU ZHUANGZE BIO TECH CO LTD

High-yield pump

An efficient pump, a motor set, a suction and discharge set, an output set and a smashing cutter are assembled in a pipe, the specification of the suction and discharge set adapts to scenes required by life and production, fluid enters the pipe from a lower inlet, a gas-liquid-electric motor is installed in the pipe, the smashing cutter is installed on a motor shaft, the smashing cutter is installed on the motor shaft, and the pipe is provided with a gas-liquid-electric motor connector in a matched mode. A middle hole of a fluid connector is communicated with a variable-diameter small flow channel, a feeding cylinder is provided with a hole, the wheel shaft is provided with the wheel blades, fluid enters from a lower inlet and flows upwards to an upper outlet to flow out of the variable-diameter small flow channel, and a gas-liquid electric motor is a pneumatic motor, a hydraulic motor and an electric motor for short. The specifications of the parts are set according to actual needs. The output of the sucked, discharged and conveyed fluid is extremely high, the size is from small to large, manufacturing and application can be set, durability, high yield and environmental protection are achieved, cost is reduced, benefit is increased, and innovative and good life, production and ecology are benefited.
Owner:叶欣

Test piece batching tool for proportioning test of construction waste roadbed filling soil

The utility model relates to the technical field of building material test piece manufacturing equipment, in particular to a test piece batching tool for a proportioning test of construction waste roadbed filling soil, which comprises a frame body, a front cover, a partition plate, an unloading drawing plate, a drawing plate film and a film roller, wherein the front cover is mounted at one end of the frame body, the unloading drawing plate is mounted at the lower part of the frame body, the frame body, the front cover and the unloading drawing plate form a batching box with an upper opening, and the partition plate is mounted in the frame body and used for partitioning the space in the batching box; the material supply proportion is controlled through the partition plate, weighing operation is converted into measurement operation, the operation process is simplified, meanwhile, the installation angle and position of the partition plate are changed, continuous change of the proportion of a single test piece can be achieved, the function of testing indexes of test pieces with different proportions at different positions of the same test piece is achieved, the manufacturing amount of the test pieces is reduced, and the cost is reduced. And the efficiency of related work is improved.
Owner:NINGXIA HUASHENG ENERGY SAVING & ENVIRONMENTAL PROTECTION TECH CO LTD

Method for synthesizing 3-(2-hydroperoxy-2-propyl) phenol

The invention discloses a method for synthesizing 3-(2-hydroperoxy-2-propyl) phenol and a preparation method of the 3-(2-hydroperoxy-2-propyl) phenol. The method comprises the following steps: in the presence of a solvent, 1, 3-bis (2-hydroperoxy-2-propyl) benzene is in contact with a potassium hydrogen sulfate catalyst for an acidolysis reaction, 3-(2-hydroperoxy-2-propyl) phenol is obtained, and the weight ratio of the 1, 3-bis (2-hydroperoxy-2-propyl) benzene to the catalyst is (15-48): 1. According to the method provided by the invention, 1, 3-bis (2-hydroperoxy-2-propyl) benzene (m-DHP) is used as a raw material, and a selective acidolysis reaction is carried out in the presence of a solid potassium hydrogen sulfate catalyst to obtain 3-(2-hydroperoxy-2-propyl) phenol m-HPP. The method has the characteristics of high yield, cleanness, environment friendliness, mild reaction conditions and easiness in industrialization.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1