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53results about How to "Reduce supply" patented technology

Operation method and system for centralized treatment and quality improvement of distributed organic solid waste and application

The invention discloses an operation method and system for distributed organic solid waste centralized treatment and quality improvement and application, and relates to the field of chemical engineering, the operation method comprises the following steps: respectively carrying out pyrolysis treatment on organic solid waste distributed in different areas to obtain combustible gas and solid combustible materials and / or pyrolysis oil, using the combustible gas as fuel for pyrolysis treatment, and using the solid combustible materials and / or pyrolysis oil for pyrolysis treatment; the solid combustible comprises carbon powder and / or pyrolysis residues; concentrating and gasifying the solid combustibles and / or pyrolytic oil obtained in different areas to obtain mixed gas, dedusting the mixed gas, and converting the dedusted mixed gas by using water vapor to obtain a hydrogen crude product; purifying the hydrogen crude product to obtain a hydrogen product; packaging, storing or conveying the hydrogen product; the method solves the problem that large-scale industrial treatment and economic benefit improvement are difficult to realize due to the fact that the organic solid waste in a distributed area or a remote area has the characteristics of multiple types, small quantity, dispersive distribution, high transportation, recovery and treatment cost and the like.
Owner:SHANDONG NUOTAI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Road obstacle sweeping equipment

The road obstacle sweeping equipment comprises a vehicle body and a rolling brush, a suction fan used for sucking road obstacles is fixedly installed in the vehicle body, a suction pipe is fixedly installed at an air inlet of the suction fan, and a conveying pipe is fixedly installed at an air outlet of the suction fan; an air outlet pipe is fixedly installed at the top of the suction fan, the end, away from the suction fan, of a conveying pipe is fixedly connected to a sewage tank, a connecting valve pipe is fixedly installed on the right side of the inner wall of the sewage tank, and the end, away from the sewage tank, of the connecting valve pipe is fixedly connected to a clean water tank. According to the road obstacle sweeping equipment, ice and snow accumulated on the road surface are broken through the rolling brush, meanwhile, the snow melting assembly is attached to the residual ice surface on the ground, the ice surface is broken in a hot steam high-temperature melting mode, and then snow water obtained after snow melting and impurities are sucked into the sewage tank through the suction assembly to be stored; and meanwhile, a filtering piece is mounted on a baffle arranged in the sewage tank, so that passing snow water can be continuously softened.
Owner:SUIZHOU DONGZHENG SPECIAL AUTOMOBILE CO LTD

Chain plate type rapid drying kiln and using method thereof

The invention discloses a chain plate type rapid drying kiln and a using method thereof, and belongs to the field of drying kilns, the chain plate type rapid drying kiln comprises a moisture removal pipeline, a drying kiln, a first moisture removal fan, a robot, a chain plate conveying belt, a first heat supply fan, a heat supply pipeline and a humidifier, the drying kiln comprises a moisturizing dehydration section, a rapid dehydration section and an internal dehydration section, a kiln body is divided into three sections, each section is composed of a plurality of independent treatment sections, each treatment section is provided with an independent heat supply, humidity circulation and moisture removal structure, and different drying path designs of the three sections are matched, so that when the drying kiln is used, each section can be subjected to independent multivariable dehydration adjustment; the structure design of top heat supply, bottom circulation and moisture removal of the moisturizing dehydration section and the internal dehydration section and the structure design of bottom heat supply, top circulation and moisture removal of the rapid dehydration section are combined, better and more reasonable curve drying can be conveniently conducted on the green body, the drying efficiency is guaranteed, and meanwhile the situation that the green body is affected with damp and damaged for the second time can be reduced.
Owner:LONGYAN LONGTENG KILN EQUIP CO LTD

Method, device and system for blocking air leakage channel in mine

The invention discloses a plugging method, device and system for an air leakage channel in a mine. The method comprises the following steps: acquiring a vertical section image of a rock stratum in a mine; based on the vertical profile images, height information of caving zones corresponding to the different types of rock stratums is determined; based on the height information and distance information between a working face of the mine and a roadway in the mine, angle information of a foam injection hole in the mine is determined, and the working face is an area where a mining operation task is being executed in the mine; a target air leakage area of the goaf in the mine is determined, and according to the angle information, the foam injection pipe extends into the target air leakage area through the foam injection hole so as to block an air leakage channel between the goaf and the external environment of the mine and an air leakage channel between the goaf and the working face, the goaf is an area where a mining operation task is executed in the mine. The technical problem that an air leakage channel in a mine cannot be effectively blocked is solved.
Owner:SHENHUA SHENDONG COAL GRP +1

Intelligent electric energy dispatching method and system

The invention relates to an intelligent electric energy scheduling method and system. The method comprises the following steps: obtaining a user side load demand and electricity price information of a current time period; preprocessing the load demand and the electricity price information, and predicting the load demand in a future time period through an LSTM network according to the load demand to obtain a predicted load demand; predicting future electricity price change through time sequence analysis according to the electricity price information to obtain a predicted electricity price; an optimization target is set, an energy distribution scheme is obtained through a particle swarm optimization algorithm according to the load demand of the user side and the electricity price information of the current time period, and a scheduling scheme is obtained through an MPC algorithm according to the predicted load demand and the predicted electricity price; the energy storage state of the user side is adjusted in real time according to the energy distribution scheme, power transmission of the user side is adjusted in real time according to the scheduling scheme, and electric energy scheduling is completed. Compared with the prior art, efficient electric energy management is realized, and the operation cost is reduced.
Owner:STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO

Advertising machine capable of achieving multi-face display

The advertising machine comprises a rotating base, a square installation box is fixedly connected to the surface of the top end of the rotating base, a display device is fixedly installed on the surface of the interior of the square installation box, a photovoltaic ceiling is fixedly installed on the surface of the top end of the square installation box, and a display screen is fixedly installed on the photovoltaic ceiling. According to the advertising machine capable of achieving multi-face display, the square installation box connected with the rotary base can rotate through the rotary base so that propaganda content can be watched by people standing at various angles, the display device is installed inside through the square installation box, and safety is improved; meanwhile, wind and rain can be resisted, the service life of an internal display device is prolonged, the number of display screens is increased by arranging the display device, the display screens in four directions can display a plurality of different advertisements at the same time, a rotary base is matched for rotation, the propaganda effect can be greatly improved, and power supply can be reduced by arranging a photovoltaic ceiling.
Owner:SHENZHEN KERCHUANG TECH CO LTD

A device for catalytic thermal cracking of residual oil and resource utilization of waste alkali liquid from coal to olefins

The invention discloses a waste alkali liquor resource utilization device for catalytic thermal cracking of residual oil and coal-to-olefins, comprising a waste alkali liquor deoiling section, an oxidation section, an organic matter removal section, a causticizing section, an evaporation and concentration section, a miscellaneous salt removal section, a sodium thiosulfate recovery section and a liquid caustic soda modulation recovery section, wherein the waste alkali liquor of a DCC device and an MTO device is subjected to oil-water separation in the waste alkali liquor deoiling section, the contained sodium sulfide is converted into sodium thiosulfate in the oxidation section, the organic matter is removed by adsorption of activated carbon in the organic matter removal section, the contained sodium carbonate is converted into calcium carbonate and sodium hydroxide by adding quicklime in the causticizing section, the water and residual sodium sulfide, sodium carbonate, sodium chloride and sodium sulfate are further removed in the evaporation and concentration section and the miscellaneous salt removal section, the sodium thiosulfate is separated in the sodium thiosulfate recovery section and the liquid caustic soda modulation recovery section, and the concentration of sodium hydroxide is adjusted. The invention realizes the efficient and low-cost resource utilization of mixed salts in the waste alkali liquor.
Owner:SHAANXI YANCHANG CHINACOAL YULIN ENERGY CHEM

A hydrogen production system with air cooling and waste heat recovery system

The utility model discloses a same side heat exchange hydrogen production system with air cooling and waste heat recovery system belongs to hydrogen production system technical field, including high pressure steam pipeline, high pressure steam pipeline one end is connected outside steam source, and the other end is connected gas mixer, anode entrance connects air heater, and air heater connects anode heat exchanger, and the first medium side one end of anode heat exchanger is connected air heater, and the other end is connected cathode cooler. Through the external supply water vapor, need not set up steam generator in the system, through the cathode tail gas, anode tail gas carries out two step preheating to air, reduces the load of air heater, and the heat of cathode tail gas reduces also can reduce the load of condenser after cathode tail gas passes two step heat exchange, part cathode tail gas is introduced into hydrogen production system again, can guarantee having hydrogen in mixed gas again, can introduce part water vapor, reduces the supply amount of external water vapor, has reduced energy loss as far as possible.
Owner:山东国创燃料电池技术创新中心有限公司

Oilless vacuum pump shutdown protection system

The oil-free vacuum pump shutdown protection system comprises a control unit, a main machine (1) and a driving unit (2), the main machine (1) comprises an air inlet (3) and an air outlet (4), the control unit is electrically connected with the driving unit (2), the control unit is used for controlling the driving unit (2) to work, the driving unit (2) is used for driving the main machine (1) to work, and a water vapor detection unit (5) is arranged at the air outlet (4). The water vapor detection unit (5) is electrically connected with the control unit, the water vapor detection unit (5) is used for providing a water vapor detection signal for the control unit, and the water vapor detection signal is used for the control unit to judge whether the driving unit (2) is shut down or not when a shutdown program is started; the water vapor in the working cavity of the host can be timely discharged during shutdown, so that the use durability and stability of the host can be greatly improved.
Owner:NINGBO BAOSI ENERGY EQUIP

A rapid cooling device applied to a graphitization furnace

ActiveCN224744055Ureduce supply
The application relates to the technical field of graphitization furnaces, and discloses a rapid cooling device applied to a graphitization furnace. By arranging a spraying ring and a spraying head, external cooling water can be introduced into a heat exchange cavity and sprayed to the outer periphery of the graphitization furnace to form a water curtain, and the multiple components can cooperate to rapidly reduce the temperature of the graphitization furnace. In the application, independent water supply is realized through a cold water tank and a water storage pool, the temperature of the water in the cold water tank is lower than that of the water in the water storage pool, multiple spraying rings independently supply water, and the proportion of the water in the cold water tank and the water in the water storage pool entering the corresponding spraying rings can be controlled through adjustment of first and second flow valves, so that the temperature of the water finally discharged by the spraying rings is controlled, and more further, the cooling rate of the outer wall of the graphitization furnace can be controlled in a targeted manner, for example, the amount of cold water supplied to the furnace wall near the core of the graphitization furnace can be increased, and the amount of normal-temperature water supplied can be reduced.
Owner:NINGXIA ZHONGTAI NEW ENERGY TECH CO LTD

Device for storing and conveying containers intermediately in at least one conveying direction

The present invention relates to an apparatus (1, 21, 26, 31) for intermediately storing and conveying containers (11) in at least one conveying direction, comprising: a multi-row intermediate storage unit (3); a plurality of container outlet channels (4, 10) disposed downstream of the multi-row intermediate storage unit in the conveying direction; and at least one movable container outlet connector (17, 18, 22, 23, 27, 28, 32, 33), each designed to connect to at least one row (131-133) of the multi-row intermediate storage unit. 20 ) Receive containers to discharge and distribute them to the plurality of container outlet channels.
Owner:KRONES AG

Source-grid-load-storage collaborative interaction and marginal cost optimization system and method for negative electricity price scene

The invention belongs to the technical field of power dispatching and operation, and particularly provides a negative electricity price scene-oriented source-grid-load-storage collaborative interaction and marginal cost optimization system and method, and the method comprises the steps: monitoring the state of a power market through a data collection module, predicting the supply and demand conditions of the system, and judging that there is a negative electricity price risk; calculating real-time marginal cost of the schedulable resources, wherein the real-time marginal cost comprises power generation resource marginal cost, energy storage resource marginal cost and load regulation marginal cost; establishing an optimization model by taking the minimization of the total marginal cost of the system as a target, and solving to obtain an optimal scheduling scheme of each resource; converting the optimal scheduling scheme into a specific control instruction, issuing the specific control instruction to each resource main body of a source, a network, a load and a storage, and executing power generation adjustment, charging and discharging or load interruption operation; and monitoring the execution effect of each resource instruction and the actual clearing electricity price of the market in real time, calculating the execution deviation, and carrying out rolling correction in the next optimization period. According to the invention, early warning of the negative electricity price risk can be realized, and global optimization scheduling is carried out on the source network load storage resources.
Owner:SHANGHAI INVESTIGATION DESIGN & RES INST CO LTD

Carbon dioxide hunting system and method

The present application relates to a kind of carbon dioxide hunting system and method, comprising: reactor, with flue gas input end, gaseous material output end, return material ash input end, calcium-based absorbent input end, heat input end and thermometer installation end;Flue gas input part;Gas recovery part, including dust collector and gas recovery processing component;The gas output end of the dust collector is connected with the gas recovery processing component, the gas input end of the dust collector is connected with the gaseous material output end by gas output pipeline component, the return material ash output end of the dust collector is connected with the return material ash input end by return material ash pipeline component;Ejector has output end, first input end and second input end;The first input end is used to be connected with the supply equipment of calcium-based absorbent, the second input end is connected with the gas output pipeline component by shunt pipeline component, simultaneously have the advantages of obtaining high concentration carbon dioxide, reducing system construction time fund investment, reducing the cost of transformation.
Owner:HUADIAN ELECTRIC POWER SCI INST CO LTD

An energy-saving system for oxygen-enriched incineration of municipal solid waste in high-altitude areas

This invention relates to the field of waste incineration system technology, specifically to an energy-saving oxygen-enriched incineration system for municipal solid waste in high-altitude areas. The system includes an incinerator, a secondary combustion section, and an exhaust pipe connected in sequence. The incinerator contains a primary combustion chamber with a first combustion grate. An air supply section is located on the side of the incinerator, containing a mixing chamber. The air supply section is equipped with oxygen supply equipment and a blower connected to the mixing chamber. A horizontal air pipe connected to the mixing chamber is horizontally arranged within the primary combustion chamber. Several vertical air pipes are vertically arranged above the horizontal air pipes, with their upper ends positioned above the first combustion grate. Several short exhaust pipes are arranged on the outer wall of the vertical air pipes, with the exhaust pipes angled downwards from one end connected to the vertical air pipe to the other. This invention addresses the problem in existing technologies where increased energy consumption during the incineration of municipal solid waste in high-altitude areas is easily caused by factors such as oxygen content and temperature.
Owner:SICHUAN ENJIRUI ENERGY DEVELOPMENT CO LTD

Cooling control device for electric vehicle

The present invention relates to a cooling control device for an electric vehicle, which prevents or suppresses air suction during rapid acceleration and deceleration of an oil pump for cooling a motor for driving. The first oil pump supplies oil to the first motor for the front wheel. A second oil pump for supplying oil to the second motor for the rear wheel; and a controller (31) that controls the first oil pump and the second oil pump, the controller (31) being provided with: a detection unit (31a) that detects at least one of acceleration and deceleration when traveling by operating the first motor and the second motor; a sudden acceleration / deceleration determination unit (31b) that determines that either the acceleration or deceleration detected by the detection unit (31a) exceeds a predetermined threshold value; and a reduction control unit (31c) that, when it is determined that either the acceleration or the deceleration exceeds a predetermined threshold value, performs control so as to reduce the amount of oil supplied by an oil pump that supplies oil to one of the first motor and the second motor having a smaller load.
Owner:TOYOTA JIDOSHA KK

A method for manufacturing a high-loft profiled hollow fiber

The application belongs to the technical field of modified functional fibers, and particularly relates to a manufacturing method of high-bulkiness special-shaped hollow fibers. The low-crystalline polyester chip is obtained by modifying the polyester, and the functional components such as graphite and tourmaline are introduced, and the high-bulkiness special-shaped hollow fibers are prepared by using a special-shaped spinneret to melt and spin, so that the hollow degree and bulkiness of the fibers are effectively improved, good breaking strength is obtained, and the oxygen index is effectively increased.
Owner:BIEM L FDLKK GARMENT CO LTD

A magnetic separation recovery device for lithium batteries

This utility model discloses a magnetic separation recycling device for lithium batteries, including a base plate with a collection box fixedly installed on the top of the base plate; a base with its bottom fixedly connected to the top of the base plate, and a motor fixedly connected to the top of the base; and a first bevel gear, one side of which is fixedly connected to the drive shaft of the motor. In this design, the motor drives the first bevel gear, which in turn drives a second bevel gear, which is fixedly connected to a rotating disk. The rotating disk is driven by a fixed column, and the rotation of the disk causes a spur gear to rotate, which in turn drives a gear ring. Electromagnetic adsorption plates on the gear ring are then driven, and a scraper at the bottom of the fixed plate scrapes off the adsorbed metal. The cleaned metal enters the collection box through the gaps between the electromagnetic adsorption plates and is collected. The device can recycle metal from waste materials without stopping the magnetic separation process, enabling continuous processing and improving the recycling efficiency of the lithium battery magnetic separation recycling device.
Owner:BAO LIXIN (INNER MONGOLIA) BATTERY CO LTD

Temperature control adjusting system and energy-saving water boiler comprising same

The invention relates to the technical field of temperature control and regulation, and provides a temperature control and regulation system and an energy-saving water boiler comprising the temperature control and regulation system, the temperature control and regulation system comprises a heating module, a high-temperature module, a medium-temperature module, a water injection module and an intelligent control system; the water injection module is used for injecting water into the heating module; the heating module is used for heating injected water; the water heated by the heating module can flow to the high-temperature module and the medium-temperature module; steam generated by heating of the heating module and the high-temperature module can be transmitted to the medium-temperature module and used for maintaining the water storage temperature of the medium-temperature module. Water injected into the heating module by the water injection module is cold water directly communicated with the outside or water preheated by the medium-temperature module; the high-temperature module is used for providing hot water. The medium-temperature module is used for providing warm water. The intelligent control system is used for controlling the heating module, the high-temperature module, the medium-temperature module and the water injection module. According to the invention, the operation energy consumption of the main heating link is reduced, the energy consumption is effectively reduced, and the energy conversion efficiency is obviously improved.
Owner:CHINA CONSTR FOURTH ENG DIV INSTALLATION ENG +1

Fluid control device, fluid pressure supply device, and fluid control method

A fluid control device (10) is provided with: a pressure adjustment valve control unit (76) that controls a pressure adjustment valve when it is determined that the flow rate (F) of a fluid continues to be equal to or less than a threshold (FT) for a first predetermined time (TM1) or more and a standby mode is permitted from an operator, and that the flow rate (F) of the fluid continues to be equal to or less than a threshold (FT) for a second predetermined time (TM1); the fluid is output from the pressure adjusting valve (50) at a second pressure (P2) lower than the first pressure (P1); and a shut-off valve control unit (80) that, when a second predetermined time (TM2) has elapsed in the standby mode, controls the shut-off valve (54) such that the supply of the fluid to the external device (42) is shut off.
Owner:SMC CORP

Purified water dispenser

The utility model discloses a purified water dispenser which comprises a water softening system, a water purifying system and a mineral water pipeline, and the water softening system is communicated with a raw water inlet; the water purification system comprises a front filter element and a reverse osmosis filter element which are sequentially arranged in the water path direction, and the front filter element is communicated with a first soft water outlet channel of the water softening system or the raw water inlet; the mineral water pipeline is communicated with the water outlet end of the front filter element and the water outlet end of the reverse osmosis filter element and used for mixing water filtered by the front filter element and pure water filtered by the reverse osmosis filter element into mineral water, and the mineral water with the stable TDS value can be output.
Owner:FOSHAN SHUNDE MIDEA WATER DISPENSER MFG +1

Oxygen isotope concentration method and oxygen isotope concentration apparatus

PendingEP4389262A4reduce supplysafely and stably supplySolidificationLiquefactionPhysical chemistryOxygen
An object of the present invention is to provide an oxygen isotope concentration method and an oxygen isotope concentration apparatus that can safely and stably supply ozone without increasing the size of the device. The present invention provides an oxygen concentration method including: a photoreaction step of irradiating a first mixed fluid (F 1) in which oxygen and a diluent substance (DS) are mixed with a laser, selectively decomposing ozone containing an oxygen isotope, and generating oxygen containing an oxygen isotope, and obtaining a second mixed fluid (F2) in which the oxygen, the ozone, and the diluent substance (DS) are mixed; a liquid storage section introduction step of introducing the second mixed fluid (F2) into a liquid storage section (10) and liquefying it; and a separation step of introducing the second mixed fluid (F2) with hydraulic head obtained by liquefying the second mixed fluid (F2) and storing it in the liquid storage section (10), into a separation column (21), distilling the second mixed fluid (F2) which has liquefied, and separating into a third mixed fluid (F3) in which ozone and the diluent substance (DS) are mixed, and product oxygen (PO) in which oxygen isotope heavy components are concentrated; wherein the liquid storage section (10) can store the liquefied second mixed fluid (F2) without being affected by heat input.
Owner:NIPPON SANSO CORP

A method and system for recovering waste heat from an organic liquid hydrogen storage process

ActiveCN119222492Blower phase transition temperatureBreak the phase transition temperature misalignment matching situationContainer filling methodsFluid handled
The present application provides a method and system for recovering waste heat from an organic liquid hydrogen storage process, the method comprising: subjecting the high-temperature gaseous hydrogenation product output from the reaction device to heat exchange with a liquid hydrogen storage carrier having a pressure lower than that required for the hydrogenation reaction, so that the liquid hydrogen storage carrier is heated and vaporized to obtain a gaseous hydrogen storage carrier, pressurizing the gaseous hydrogen storage carrier to make the gaseous hydrogen storage carrier reach the pressure of the hydrogenation reaction, and obtaining a gaseous hydrogen storage carrier that meets the temperature and pressure requirements of the hydrogenation reaction; and inputting the gaseous hydrogen storage carrier and hydrogen that meet the temperature and pressure requirements of the hydrogenation reaction into the reaction device for hydrogenation reaction to obtain a high-temperature gaseous hydrogenation product. The above method can be used to efficiently recover and utilize the waste heat generated during the hydrogen storage process through the designed new system, further enhancing the energy-saving effect of the organic liquid hydrogen storage process.
Owner:SHAANXI HYDROGEN ENERGY TECH CO LTD +1

Steam-water circulation system for steam generator

The utility model discloses a steam-water circulation system for a steam generator, which belongs to the technical field of nuclear power operation and comprises the steam generator, a steam turbine, a condenser, a starting water supply tank, a deaerator, a sixth valve group, a first valve group, a second valve group, a third valve group, a fourth valve group, a fifth valve group and a sixth valve group. According to the system, thermal load impact on the condenser at the initial stage of starting of the unit can be avoided, meanwhile, water consumption and heat consumption in the starting process are low, and safe operation of the unit can be guaranteed when feed water transmission fluctuates.
Owner:XIAN THERMAL POWER RES INST CO LTD +1

Oxygen concentration device, control method, and control program

Provided are: an oxygen concentrator capable of preventing a drop in pilot pressure in the supply flow path open / closed section or the exhaust gas flow path open / closed section, wherein at least one of the supply flow path open / closed section or the exhaust gas flow path open / closed section is a pilot-operated solenoid valve; a control method; and a control procedure. An oxygen concentrator is provided configured such that pressure is applied to an adsorption cylinder whose pressure has already decreased before a pressure equalization step, and thus pressure drop in both adsorption cylinders can be prevented during the pressure equalization step, thereby preventing a drop in pilot pressure in the supply flow path open / closed section or the exhaust gas flow path open / closed section, wherein at least one of the supply flow path open / closed section or the exhaust gas flow path open / closed section is a pilot-operated solenoid valve.
Owner:TEIJIN PHARMA CO LTD

Recombinant microorganism for producing 3-aminopropanol by fermentation and construction method and application thereof

The present application relates to the recombinant microorganism for producing 3-amino propanol by fermentation method and its construction method and application. Specifically, the present application provides a construction method of the recombinant microorganism for producing 3-amino propanol, which is introducing the coding gene of omega-transaminase into the microorganism producing 3-hydroxy propionaldehyde, wherein the omega-transaminase can catalyze the conversion of 3-hydroxy propionaldehyde into 3-amino propanol in the presence of amino donor. The present application introduces the omega-transaminase capable of catalyzing the synthesis of 3-amino propanol with 3-hydroxy propionaldehyde as the substrate into the microorganism producing 3-hydroxy propionaldehyde based on gene editing, molecular cloning and other technologies, which first creates a brand new full-path biosynthesis process route of 3-amino propanol.
Owner:ANHUI HUAHENG BIOTECH CO LTD +1

Double-heat-source hot water sterilization system

The utility model relates to the technical field of hot water system sterilization, and provides a double-heat-source hot water sterilization system which comprises heat sources, a water storage tank, a water supply pipeline and a water return pipeline. The heat source comprises an air energy heat pump and a water heater system which are arranged in parallel; the water supply pipeline is used for supplying hot water to the domestic water tail end, the water supply pipeline comprises a first water supply pipeline section and a second water supply pipeline section, and water heated by the heat source flows into the water storage tank through the first water supply pipeline section and is supplied to the domestic water tail end by the water storage tank through the second water supply pipeline section; the water return pipeline is used for enabling a part of water in the water storage tank and the water supply pipeline to flow back to the air energy heat pump to be heated and sterilized, and enabling the other part of water in the water storage tank and the water supply pipeline to flow back to the water heater system to be heated and sterilized. According to the embodiment of the invention, the heating sterilization efficiency of the hot water system can be improved.
Owner:A O SMITH (CHINA) WATER HEATER CO LTD

Method for grinding tooth flank of gear workpiece, and gear grinding machine

A gear grinding machine uses a grindstone tool (21), having an outer circumference that includes a thread (24), to grind a tooth surface (27) of a gear workpiece (23). In this case, coolant (100) is supplied toward the tooth surface (27) from a trailing side in a rotation direction of the gear workpiece (23) through a space (101) between the grindstone tool (21) and the gear workpiece (23). The coolant (100) is drawn into the meshing portion between the grindstone tool (21) and the gear workpiece (23) by the rotation of the gear workpiece (23) and the movement of the thread (24) of the grinding tool (21).
Owner:NAGASE INTEGREX CO LTD

A modified fly ash and its preparation method and application

The invention discloses a modified fly ash and a preparation method and application thereof, belonging to the technical field of fly ash resource development, first, the preparation method of modified fly ash comprises the following steps: fly ash is ground to obtain fly ash fine powder, and then silane coupling agent KH-550 is used to process fly ash fine powder to obtain amination fly ash, and then ammonia-alkali white mud is stirred and added to amination fly ash, and then after drying, modified fly ash is obtained. The present invention makes full use of the solid waste resources generated in the industrial production process, and then integrates and utilizes to obtain a modified fly ash, and then, based on the above research and discovery, the present invention applies the prepared modified fly ash to the development of a fireproof board, which can be applied to boilers and building outer wall fireproofing and thermal insulation, and the present invention improves the flame retardant properties of the fireproof board finally prepared by improving the modification process of fly ash.
Owner:SHAANXI KEYSTONE NEW MATERIALS TECHNOLOGY CO LTD