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27results about How to "Zero pollution" patented technology

Connectable multi-channel air temperature adjusting device and application thereof

The invention belongs to the field of air temperature regulation, and particularly relates to a connectable multi-channel air temperature regulation device and application thereof.The connectable multi-channel air temperature regulation device comprises a channel main machine, the two ends of the channel main machine are in sealed communication with a first connecting piece and a second connecting piece through sealing rings, and the channel main machine comprises a main machine inner pipe and a main machine outer pipe; the main machine outer pipe is arranged on the outer side of the main machine inner pipe in a sleeving mode, the main machine outer pipe is of a hollow ring structure, and a plurality of temperature conduction supporting pieces are evenly distributed between the inner wall of an outer ring of the main machine outer pipe and the outer wall of an inner ring of the main machine outer pipe to form a plurality of temperature conduction channels I; a plurality of semiconductor plates are arranged on the outer side of the host inner tube, are spaced by thermal insulation strips, and are attached to the inner wall of the inner ring of the host outer tube; a plurality of temperature conducting spacers are evenly distributed on the inner wall of the main machine inner pipe, a plurality of temperature conducting channels II are formed among the temperature conducting spacers, and the device can achieve simultaneous refrigeration and heating based on the characteristic that one side of a semiconductor material is used for refrigeration and the other side of the semiconductor material is used for heating, so that the use requirements of air heating or cooling in different application scenes are met at the same time.
Owner:NORTHEASTERN UNIV CHINA

A catalyst carrier powder conveying apparatus

The utility model relates to powder conveying technical field especially is concerned on a kind of catalyst carrier powder conveying equipment;Including the hopper of cone angle ≥70 °, the roughness Ra of the inner wall surface of hopper ≤0.4 μm, pneumatic flow-aiding ring is set in the height ≤1 / 3 cone height of hopper lower part and the height from discharge port, and the annular air cavity of pneumatic flow-aiding ring is connected outside gas source;Pneumatic flow-aiding ring circumferentially distributes first nozzle group and second nozzle group, and the jet direction of first nozzle group is inclined upwards along hopper inner wall, for fluidizing powder layer in advance;The jet direction of second nozzle group is inclined downwards along hopper inner wall, for promoting powder slip.
Owner:RENQIU NORTH CHINA PETROLEUM CLEAN ENVIROMENTAL PROTECTION CO LTD

Forest fire extinguishing rocket projectile with racemization empennage

The invention relates to the technical field of fire fighting and extinguishing, in particular to a forest fire extinguishing rocket projectile with a racemization empennage, which comprises a projectile head, a projectile body, a solid rocket engine, the racemization empennage and a baffle ring, the bomb body is provided with a shell, a superfine dry powder extinguishing agent, a front sealing plate, a rear sealing plate and an initiating explosive column, the solid rocket engine provides power for flight, the rotation eliminating empennage can rotate around the axis of the bomb body to eliminate airflow interference, and the baffle ring axially limits the rotation eliminating empennage; according to the forest fire extinguishing rocket projectile with the racemization empennage, long-distance launching is achieved through the solid rocket engine, accurate spreading of the fire extinguishing agent is guaranteed through the infrared proximity fuze, the superfine dry powder fire extinguishing agent is environmentally friendly and efficient, the racemization empennage improves the drop point precision, the forest fire extinguishing rocket projectile is suitable for fire extinguishing of large-area fire sources such as forests and grasslands, the casualty risk is reduced, and the forest fire extinguishing rocket projectile is suitable for large-area fire extinguishing. And the fire extinguishing timeliness and effectiveness are effectively improved.
Owner:WUXI YUNJIAN SPACE TECHNOLOGY CO LTD

Manufacturing method of permanent magnet power generator of pure electric vehicle

The invention relates to a manufacturing method of a permanent magnet power generator of a pure electric vehicle, which creatively fills up the following functions: (1) a technology which is equivalent to a secondary commercial power 220V / 50Hz alternating current power supply energy-to-electricity technology; the function (2) is equivalent to a secondary energy structure electronic power technology power engine'electricity-to-energy and electricity-to-electricity 'technology; the function (3) is equivalent to an energy-to-energy technology of a permanent magnet power automobile generator in a secondary energy structure electronic power technology, a DC power supply conversion technology of a DC / DC converter in energy recovery of an energy storage system, an inversion IGBT power module conversion control technology of a DC / AC converter, an electronic rectification technology of a silicon controlled rectifier charger, a DC filtering technology and a switching power supply technology. The invention relates to a technology blank of'energy-to-electricity and electricity-to-energy 'technologies converted by a silicon controlled rectifier control technology and a silicon controlled rectifier capacitive reactance load technology, new energy, new structures, new ideas, new methods and new technologies.
Owner:张素琴

A method for thermal activation of coal gangue

ActiveCN116947352Belicit activityHigh activation rate
This invention discloses a method for thermal activation of coal gangue. Using coal gangue and an activating admixture as raw materials, the method involves sequential crushing, mixing and mechanical activation, homogenization, molding, drying, calcination and thermal activation, cooling, and grinding to prepare active powder. This invention uses coal gangue as the main raw material. By adding an activating admixture, the thermal activation temperature of the coal gangue is reduced to below 1000℃, significantly stimulating its activity. Simultaneously, combined with mechanical activation, unsaturated residual bonds are formed in the quartz minerals within the coal gangue, producing active silica, further stimulating the activity of the coal gangue and increasing its activation rate. The prepared active powder exhibits a pozzolanic activity of over 75%, achieving the goal of "waste treatment" and reducing costs. This active powder can be directly added as a mineral admixture during concrete preparation, showing promising application prospects.
Owner:XIAN KAISHENG BUILDING MATERIALS ENG CO LTD

A storage device for carbon capture using seawater

PendingCN122251993AReduce transportation energy consumptionRealize self-superchargingDispersed particle filtrationPtru catalystHydrology
The present application relates to carbon capture and storage technology field, specifically to a kind of seawater type carbon capture and storage equipment, the output end of lifting mechanism is connected with the top of reaction bin;Reaction bin includes the upper tank body and lower tank body that can generate relative sliding, the top of upper tank body is connected with industrial exhaust pipe;The side wall of the top opening of upper tank body is fixedly connected with limiting ring, sealing mechanism is installed at the top opening of upper tank body, the output end of sealing mechanism is connected with sealing block, and the opening and closing state between sealing block and limiting ring is adjusted;The other end of sealing mechanism is located on the inner wall of upper tank body and is in contact with the top of lower tank body;Upper tank body top surface is equipped with spray head, and the liquid inlet end of spray head is communicated with the outside of upper tank body;Drain pipe is installed at the bottom of lower tank body;Catalyst for promoting carbon capture efficiency is sprayed on the inside wall of reaction bin.The equipment not only uses the pressure of seawater to keep the sealing of reaction bin, but also uses seawater pressure to pressurize reaction bin, so as to improve the reaction efficiency of carbon capture.
Owner:GUANGDONG OCEAN UNIVERSITY

Skid-mounted high-temperature plasma hazardous solid waste treatment device and treatment method

The invention discloses a skid-mounted high-temperature plasma dangerous solid waste treatment device and method, and the treatment system comprises a feeding module which is used for feeding dangerous solid waste into a high-temperature plasma working module; the high-temperature plasma working module is used for carrying out thermal cracking on the dangerous solid waste through high-temperature plasma to generate combustible synthesis gas and slag; the synthesis gas treatment module is used for cooling and dedusting combustible synthesis gas generated by the high-temperature plasma working module; and the glass body processing module is used for cooling the slag discharged by the high-temperature plasma working module into a glass body. The method comprises the following treatment steps: conveying the dangerous solid waste into a high-temperature plasma melting furnace, continuously heating the dangerous solid waste in a crucible by a plasma torch to melt the dangerous solid waste, and generating combustible synthesis gas; cooling the melt into a glass body; and the combustible synthesis gas is recovered after cooling and dedusting. The device can convert dangerous solid waste into inert glass and combustible synthesis gas, and is safe and reliable.
Owner:SINOPEC OILFIELD SERVICE CORPORATION +1

A steel lining installation machine for repairing the top and side structures of subway tunnels

The present invention discloses a steel lining installation machine for repairing the top and side structures of subway tunnels, and belongs to the technical field of repairing the top and side structures of tunnels in shield-bored subway construction. The technical solution of the present invention mainly includes a base system, a lifting system, a hydraulic system, an electrical system, a steel lining assembly and a steel lining installation system. The present invention is a vehicle-mounted mobile device, which is driven by a traction locomotive, and the working device adopts a flatbed truck with a hydraulic system, which does not need to be configured with a power unit and a hydraulic pump station, saving production costs; mechanized operation is adopted, the labor intensity of workers is low, and the construction efficiency is high; an integrated control console is adopted, which is simple and convenient to operate, safe and reliable, and has high construction efficiency; a hydraulic drive method is adopted, and the installation and positioning are accurate and reliable, the construction quality is high, and the construction environment is zero-pollution.
Owner:CHINA RAILWAY TUNNEL STOCK CO LTD

Automatic cutting and packing machine for tofu in water

This invention discloses an automatic tofu cutting and packaging machine in water, comprising: a water tank assembly, which includes a cutting area, a pushing area, and a packaging area connected in sequence; the pushing area is equipped with a pushing mechanism; the packaging area is equipped with a cutting frame; one side of the cutting frame is equipped with a horizontal cutting component; the other side of the cutting frame is equipped with a pressing and balancing component and multiple vertically arranged vertical cutting blades; the pressing and balancing component and the multiple vertical cutting blades are connected to the cutting frame through a rotating pressing and cutting mechanism; the packaging area is also equipped with a box-dropping fixing frame fixedly connected to the water tank assembly; a box-dropping mechanism is provided above the box-dropping fixing frame; a box-receiving component corresponding to a fork component is provided below the box-dropping mechanism; a conveyor is provided on the water tank assembly outside the packaging area; the conveyor is equipped with a box-scraping mechanism; the above design solves the problem that the existing packaging structure is complex and cannot achieve integrated packaging and cutting.
Owner:ROCK MASCH (TIANJIN) CO LTD

A biodegradable and environmentally friendly fiber tabletop and its preparation method

This invention relates to the field of biodegradable tabletop manufacturing technology, specifically to a biodegradable and environmentally friendly fiber tabletop and its manufacturing method, comprising: a substrate layer, wherein the substrate layer is provided with a moisture-proof sealing layer, a load-bearing reinforcement layer, a core layer, and an outer reinforcement layer from bottom to top; a functional coating, wherein the functional coating is applied to the top of the substrate layer, wherein the functional coating is provided with a substrate surface treatment layer, an antistatic layer, and a surface sealing coating from bottom to top; and a coating layer, wherein the coating layer is bonded to the top of the functional coating, wherein the coating layer is provided with a functional coating and a peelable protective film from bottom to top. This invention uses biodegradable natural fibers and bio-based resin to construct the substrate layer, the moisture-proof sealing layer to block moisture erosion, the ionic liquid antistatic layer to achieve stable static dissipation without electromagnetic interference, and the biodegradable conductive layer on the surface coating to ensure high X-ray transmittance. The entire material system is completely biodegradable after disposal, making it widely applicable in electronic laboratories and medical environments.
Owner:HAOGUAN FURNITURE (ZHEJIANG) CO LTD

Unmanned ship-based variable buoyancy anchoring type optical halite layer thickness static sounding measurement system and method

PendingCN122280138Aaccurate captureSolve miniaturizationSalt lakeClassical mechanics
This invention provides a static cone penetration test (CPPT) system and method for measuring the thickness of carnallite ore layers based on an unmanned surface vessel (USV) with variable buoyancy anchoring. The system includes an USV body, a penetration unit, a main control unit, a data acquisition unit, a multi-parameter formation identification unit, and a fluid counterweight anchoring unit. When the USV body is not performing detection operations, the fluid counterweight anchoring unit increases the weight of the hull. As the static cone penetration probe penetrates the formation, it collects the end resistance at the probe tip and the frictional force on the probe sidewall sleeve, transmitting these data to the multi-parameter formation identification unit. The identification unit identifies the upper and lower interfaces of the carnallite ore layer. The control unit calculates the carnallite ore thickness based on the depth difference between the static cone penetration probes at the upper and lower interfaces of the carnallite ore layer. This invention improves measurement accuracy, resolves the contradiction between miniaturization and large reaction forces, does not damage the original crystallization environment of the salt lake, and enhances the safety of unmanned operations.
Owner:WUHAN SURVEYING GEOTECHN RES INST OF MCC

Green recycling and repairing method of lithium battery negative electrode graphite material

The invention discloses a green recycling and repairing method of a lithium battery negative electrode graphite material, which comprises the following steps: cutting a battery cell of a lithium battery without liquid injection into sheets, winnowing, and separating out a diaphragm and positive and negative electrode sheets; performing color sorting on the positive and negative pole pieces to separate the positive pole piece and the negative pole piece; carrying out ultrasonic water phase stripping on the negative plate, and separating out a copper foil and a graphite suspension; and carrying out ultrasonic water washing on the graphite suspension, and then carrying out three-stage countercurrent pure water washing to obtain the regenerated negative electrode graphite material. The negative electrode graphite material in the non-liquid-injection battery cell is physically recycled and repaired through cutting, winnowing, color sorting and washing, the problems of high pollution, high energy consumption, complex process, insufficient performance recovery and the like in the prior art are solved, the method is environmentally friendly, high temperature and chemical reagents are not needed, the process is simple and efficient, and the method is suitable for industrial production. The purposes of low cost, harmlessness and high-valued recovery of the negative electrode graphite material are achieved, and the performance of the regenerated graphite material can be recovered to 95% or above of that of the raw material.
Owner:HEFEI GUOXUAN CIRCULATION TECH CO LTD

A composite bimetallic drill pipe and a method of making the same

ActiveCN117001270BWear resistantAchieving wear resistanceDrilling rodsRigid pipesFriction weldingStructural engineering
This invention provides a composite bimetallic drill pipe and its preparation method. A first aspect of this invention provides a method for preparing a composite bimetallic drill pipe, the method comprising the following steps: preparing a bimetallic drill pipe joint; preparing a bimetallic drill pipe body; friction welding the end of a first region of the drill pipe joint to the end of a second region of the drill pipe body; after welding, applying a third corrosion-resistant alloy layer to the inner wall of the weld area between the drill pipe joint and the drill pipe body, and fusing the third corrosion-resistant alloy layer with the first and second corrosion-resistant alloy layers. According to the preparation method provided by this invention, a complete corrosion-resistant alloy layer is formed on the entire inner wall of the drill pipe, effectively ensuring the corrosion resistance of the inside of the pipe body and improving the overall performance and service life of the drill pipe.
Owner:CHINA NAT PETROLEUM CORP +2

A comprehensive waste tire treatment system based on ultra-high pressure water jet technology

The present invention relates to the field of mechanical equipment, and in particular to a waste tire comprehensive treatment system based on ultra-high pressure water jet technology, comprising: a water tower mechanism, a water jet mechanism connected to the water tower mechanism, a treatment workstation connected to the water jet mechanism, a water recovery mechanism connecting the treatment workstation and the water tower mechanism, a rubber powder wet screen mechanism connected to the treatment workstation, a drying mechanism connected to the rubber powder wet screen mechanism, and a rubber powder storage tower mechanism connected to the drying mechanism. The present invention has a reasonable layout, saves plant space, improves production efficiency, and has the characteristics of high wastewater utilization rate and zero pollution.
Owner:DONGGUAN BINGNENG RUBBER CO LTD +1

Oil and gas filtering device with external flange

An oil and gas filter device with an external flange, which relates to the field of power transmission technology. The present invention is to solve the problem that the existing ventilation hood will discharge a small amount of oil mist in the gear box mixed with the air while venting the air and relieving the pressure, which brings the risk of environmental pollution. The present invention includes an outer cover shell, a bushing, an upper cover, a first filter screen and a second filter screen. The air inlet end of the outer cover shell is connected to the air outlet end of the box body, the air outlet end of the outer cover shell is fixedly connected to the bushing, the air inlet end of the bushing is fixedly connected to the first filter screen, the outer end of the bushing is fixedly connected to the upper cover, the air inlet end of the upper cover is fixedly connected to the second filter screen, and the air outlet end of the upper cover is provided with a flange. The present invention is used for oil and gas filtration in gear boxes.
Owner:CHINA SHIPBUILDING IND CORP NO 703 INST

Wide-area supersonic electrochemical auxiliary combined power cycle system

PendingCN121973938Azero pollutionStable and efficient compressionPower plant exhaust arrangementsJet type power plantsAviationFuel cells
The invention provides a wide-area supersonic electrochemical auxiliary combined power cycle system, and belongs to the technical field of aviation propulsion. The problems that an existing supersonic engine cannot stably and efficiently compress air when flying across the speed domain, and stable and clean air with appropriate humidity is provided for a fuel cell are solved. The system comprises a propulsion system, a fuel cell system and a lubricating and cooling system, the propelling system sequentially comprises an air inlet channel, a screw type air compressor I, a motor I, a screw type air compressor II, a motor II and an ejection exhaust nozzle from front to back, and motor shafts of the motor I and the motor II are connected with screw shafts of the screw type air compressor I and the screw type air compressor II respectively. The fuel cell is used as power, and the engine is efficient and free of pollution; a two-stage screw compressor is adopted, is high in pressurization, stable in work and insensitive to inlet air pressure and flow fluctuation, can stably and efficiently compress air during cross-speed-domain flight, and meanwhile, provides stable and clean air with proper humidity for a fuel cell.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

A light-driven antibacterial and dehumidification synergistic system for agricultural greenhouses and its operation method

This invention discloses a light-driven antibacterial-dehumidification synergistic system for agricultural greenhouses, comprising an agricultural greenhouse, a light source module, and an antibacterial-dehumidification module. The light source module includes a condenser lens, a first beam splitter, a second beam splitter, and a reflector, capable of generating visible light, ultraviolet light, and infrared light; it also includes visible light emitting elements, ultraviolet light emitting elements, and infrared light emitting elements. The antibacterial-dehumidification module includes a connected processing air channel and a regeneration air channel, which intersect to form a dehumidification zone containing a solid dehumidifier. The processing air channel has a sterilization zone, and both ends of the dehumidification zone are equipped with three-way reversing valves. By adopting the above configuration, sunlight can be concentrated and split, and matched with the emitting elements to provide visible light, ultraviolet light, and infrared light around the clock, promoting crop photosynthesis, air sterilization, and dehumidifier photothermal regeneration. This constructs a new, efficient, safe, and multi-purpose synergistic approach to solar energy development and utilization, providing a green and efficient antibacterial-dehumidification technology solution for agricultural greenhouses.
Owner:GUANGZHOU INST OF ENERGY CONVERSION CHINESE ACAD OF SCI

A room temperature self-sustained vacuum zero-point energy array generator

PendingCN122268114Aachieve net outputno fuelDynamo-electric machinesThermodynamicsPower grid
This invention discloses a room-temperature self-sustaining vacuum zero-point energy array power generation device, belonging to the fields of quantum clean energy and micro-nano power generation technology. This invention solves the technical problems of traditional vacuum energy power generation, such as low efficiency, the need for vacuum pumps, the requirement for low-temperature superconductivity, energy recirculation, and the inability to output net power. The device consists of a permanently sealed vacuum Casimir trapping array, an asymmetric piezoelectric resonant amplification layer, a unilateral directional magnetic shielding energy-locking layer, and a room-temperature quantum rectification output layer. It utilizes silicon-glass anode bonding to achieve a 30-year long-term high vacuum. Through nano-spacing plates, room-temperature rectification, and a unidirectional energy-locking structure, it stably extracts vacuum zero-point energy and outputs net electrical energy under pump-free, cooling-free, and superconducting conditions. This invention can be mass-produced at the wafer level and can be stacked for expansion. A 1-square-meter module can output 280W to 650W net power. It has advantages such as zero fuel, zero emissions, long lifespan, self-sustainability, and applicability to all scenarios. It can be widely used in household power supply, industrial power, aerospace energy, and distributed power grids, and is a sustainable clean energy system that can be engineered and implemented.
Owner:褚果正

Continuous recycling system for fiber reinforced composite materials

The present application provides a continuous recycling system for fiber reinforced composite materials, comprising: a conveyor belt pyrolysis furnace, wherein the conveyor belt of the conveyor belt pyrolysis furnace is connected to a feeding device, and an air curtain device is provided at the inlet and outlet of the conveyor belt, wherein the air curtain device is used to release superheated steam to generate an air curtain and heat the fiber reinforced composite material; a superheated steam generator, connected to the air curtain device of the conveyor belt pyrolysis furnace; a heat conversion combustion furnace, connected to the cracking gas outlet of the conveyor belt pyrolysis furnace, and used to ignite the cracking gas from the conveyor belt pyrolysis furnace; the heat conversion combustion furnace is also connected to the superheated steam generator; a conveyor belt decarbonization furnace, connected to the conveyor belt pyrolysis furnace. The continuous recycling system for fiber reinforced composite materials provided in the present application saves the cost of fiber recycling, realizes non-damage recycling of fibers, and the recycling process has the characteristics of zero tail gas emission and zero pollution.
Owner:SHANGHAI ZHISHI ALLOY TECH CO LTD

Novel ball throwing valve

ActiveCN119426302Azero emissionzero pollutionHollow article cleaningPigs/molesVALVE PORTPhysics
The invention discloses a novel ball injection valve, which belongs to the technical field of valves and comprises a valve body assembly, a valve core assembly and a moving mechanism. Through the valve body assembly and the valve element assembly assembled in the valve body assembly, ball throwing operation is completed based on rotation of a ball part in the valve element assembly and cooperative operation of a moving mechanism, in the rotation process of the ball throwing valve, crude oil cannot be brought into a ball storage barrel, and the ball throwing valve has the advantages of being simple in structure, stable in work and not prone to damage. Crude oil can be effectively prevented from being taken out of an oil conveying pipeline, zero contact between the ball storage barrel body and the conveying pipeline is achieved, and zero emission and zero pollution of the crude oil in the ball throwing process are achieved.
Owner:CHANGQING ENGINEERING DESIGN CO LTD +1

A dual-function system for circulating cooling and waste heat conversion in a cast pipe annealing furnace

ActiveCN224280372UMeet the process requirements of rapid coolingeasy to use
This utility model relates to the technical field of pipe casting production equipment, and provides a dual-function system for circulating cooling and waste heat conversion in a pipe casting annealing furnace, comprising: a cooling air inlet circulation system, a hot flue gas exhaust system, a heat exchange system, and a steam conversion system. This utility model meets the process requirements for rapid cooling in the quenching and slow cooling sections of the annealing furnace, and simultaneously converts excess hot flue gas from both sections into hot air and steam for use in other equipment requiring hot air and steam. While meeting process requirements, it significantly saves costs, conserves energy, and reduces consumption, achieving green production.
Owner:DALIAN WANTONG ENERGY EQUIP CO LTD

Production method of fermentation bed for cattle breeding

PendingCN119655178AImprove growth performanceImprove reproductive performanceAnimal housingBiotechnologyReproductive capacity
The invention discloses a method for manufacturing a fermentation bed for cattle breeding, which comprises the following steps: S1, activating a strain, namely mixing and activating the strain and a mixture; s2, laying is conducted, specifically, padding and activated strains are evenly mixed, and laying is conducted according to the preset thickness; s3, raising a bed, placing the raising bed after laying the fermentation bed, slowly heating the fermentation bed, and then putting cattle into the fermentation bed; and S4, later-stage maintenance: in the process of finishing the breeding bed and feeding the cattle into the fermentation bed for breeding, maintaining at set intervals. According to the fermentation bed manufactured through the fermentation bed manufacturing method, ecological cattle raising can be achieved, if the fermentation bed is properly maintained, the growth performance of fattening beef cattle can be remarkably improved, the stress death and culling rate of calves can be reduced, the meat quality can be improved, and the good market price can be obtained. In the south, the reproductive capacity of the reproductive cows can also be remarkably improved.
Owner:HUANGPING YEDONGHE YUANSHI ECOLOGICAL CIRCULATIONBREEDING

A bio-based plasticizer and its preparation method and application

InactiveCN118667134Bzero pollutionreduce pollution
The invention discloses a bio-based plasticizer and a preparation method and application thereof, and relates to the technical field of plasticizers. A bio-based plasticizer, in terms of mass percentage, comprises the following components: 35-65 parts of a bio-based dibasic acid, 30-60 parts of a bio-based diol, 5-7 parts of a terminator, 0.3-0.9 parts of an antioxidant, 0.004-0.006 parts of a catalyst, and 0.04-0.08 parts of an auxiliary agent; the bio-based dibasic acid is prepared by the following method: vegetable oleic acid, anhydride and a catalyst are added to a reactor, wherein the molar ratio of the vegetable oleic acid to the anhydride is 1:(2-4), the amount of the catalyst added is 0.6-0.9 parts of the total mass of the vegetable oleic acid and the anhydride, the temperature is controlled at 120-140°C, the reaction is completed when the acid value no longer decreases, and the reaction is cooled to room temperature to obtain the bio-based dibasic acid. The present invention uses dibasic acids, diols and bio-based long-chain acids extracted from oil plants to generate products, replacing products produced from petroleum-based basic materials, achieving environmental protection, zero pollution and reduced carbon pollution.
Owner:GUANGDONG HUABORUN MATERIAL TECH CO LTD

Injection well containment fishing wellhead device

ActiveCN116291285Bpromote environmental protectionImprove the success rate of salvageMarine engineeringBlowout preventer
The present application relates to the well logging fishing is used closed fishing device, especially relates to a kind of injection well closed fishing wellhead device.The device includes wellhead sealing locking gate, variable-diameter positioning fishing short circuit and hydraulic sealing short circuit;Wellhead sealing locking gate includes main body, sealing clamping elastic gate, gate hand wheel;The upper end of main body is connected to blowout preventer, and its lower end is connected to hydraulic sealing short circuit;Variable-diameter positioning fishing short circuit includes heavy rod connector, variable-diameter positioning short circuit, fishing head;Heavy rod connector connects variable-diameter positioning short circuit;Variable-diameter positioning short circuit can be detachably connected to fishing head;Hydraulic sealing short circuit includes: steel sleeve, rubber tube, pressurizing connector, first piston, second piston and spring;Injection well closed fishing wellhead device provided by the present application maximizes the success rate of fishing, meets the requirements of safety and environmental protection standards, realizes the goal of zero overflow and zero pollution on site.
Owner:DAQING OILFIELD CO LTD +1

Treatment device system and method for recycling grinding wastewater

According to the treatment device system and method for recycling the grinding wastewater, the first separation device, the second separation device, the precipitation device, the solar distillation device and the sterilization device are combined and matched for use, and a multi-stage physical treatment means is used for removing a grinding agent and copper cuttings in the grinding wastewater; all indexes of the treated water quality meet the grinding water requirement, the water resource utilization rate is increased, chemicals such as a coagulant do not need to be added in the filtering process, the water quality effect after filtering is prevented from being affected by the coagulation agent, and the water resource consumption and the operation cost are reduced.
Owner:NINGBO S J ELECTRONICS CO LTD

A method for preparing quantum dot-based microcrystalline glass

This invention provides a method for preparing quantum dot-based microcrystalline glass, wherein the glass comprises microcrystalline glass powder and quantum dots in a mass ratio of 2.5:1, and the microcrystalline glass powder comprises the following components by mass percentage: SiO₂ 2 : 40-60%; H 3 BO 3 : 25-45%; La 2 O 3 :1-3%; ZnO: 5-12%; Na 2 CO 3 The UV and infrared blocking rates of the glass described in this invention reach approximately 90% before color change, and the visible light transmittance reaches over 80.0%; after color change, the UV blocking rate reaches over 99.0%, the infrared blocking rate is higher than 97%, and the visible light transmittance reaches over 30%.
Owner:TIANJIN BAOGANG RES INST OF RARE EARTHS CO LTD +1

Mine annual heat supply load composite heat source heating system and working method thereof

The invention discloses a mine annual heat supply load composite heat source heating system and a working method thereof. The system comprises a heating water tank, a photovoltaic direct current electromagnetic heating subsystem, an air compressor waste heat recovery heating subsystem, a bathing waste water waste heat recovery heating subsystem, a reheating circulation subsystem, a control subsystem and a water supply subsystem. The photovoltaic direct-current electromagnetic heating subsystem, the air compressor waste heat recovery heating subsystem, the bathing waste water waste heat recovery heating subsystem, the reheating circulation subsystem and the water supply subsystem are all connected with the heating water tank and the control module. Light heat storage is fused in a bath waste water waste heat recovery system and an air compressor waste heat recovery system to form an integrated heating and heat supply system, the defects that a hot water solar heat collector is multiple in pipeline, difficult to lay, prone to pipe explosion in winter, frequent in maintenance and the like are overcome, scattered and small amount of waste heat is efficiently utilized, and zero emission and zero pollution are achieved.
Owner:INNER MONGOLIA PINGZHUANG COAL IND GRP CO LTD +2