53results about How to "Stable recycling" patented technology

The invention discloses a full-automatic pipe coiling machine. The full-automatic pipe coiling machine comprises a frame, a coiling device, a pipe clamping device and a brake mechanism, the tops of the two sides of the frame are each provided with a support. The reel device comprises a winding drum and a supporting shaft, and a hose is wound on the winding drum; the winding drum is rotationally connected with the two supports through a supporting shaft, and a coil spring is further arranged between the winding drum and the supporting shaft. The pipe clamping device is located on one side of the winding drum and used for controlling the winding drum to rotate or be fixed. The brake mechanism is located on the other side of the winding drum and used for controlling the rotating speed of the winding drum. The device is simple in structure, convenient and rapid to operate, capable of achieving rapid inflation operation in a limited deck space, capable of automatically recycling the inflation hose after inflation operation is completed, small in size and small in occupied space, and interference of disordered decks on other operations is avoided.

The invention relates to a water surface and underwater equipment laying and recycling device suitable for complex sea conditions. The water surface and underwater equipment laying and recycling device comprises a frame A and a swing stopping mechanism. The oscillation stopping mechanism comprises an oscillation stopping device and an anti-collision net mechanism; the oscillation stopping device comprises a swinging connecting rod, an oscillation stopping oil cylinder and a connecting circular ring; the upper end of the swinging connecting rod is hinged to the A frame body; the upper end of the anti-swing oil cylinder is connected with the swing connecting rod and the lower end is connected with the connecting ring; a group of steel cable launchers are arranged around the connecting ring, the steel cable launchers can release the steel cable through ejection, and the steel cable can be continuously released or recycled through a steel cable winch in the steel cable launchers; the lower end of a steel cable in the steel cable emitter is connected with a steel cable clamp, and the steel cable clamp is provided with an opening and closing mechanism and can grab and release a lifting lug on target equipment; the anti-collision net mechanism comprises two sets of supporting arms and an anti-collision net clamped by the far ends of the two sets of supporting arms, and the near ends of the two sets of supporting arms are hinged and fixed to the A frame base. The precision and success rate of equipment recovery can be improved.

The present invention relates to the technical field of drone release and recovery, and in particular to an inverted harpoon-type mother-and-child drone aerial release and recovery device. It includes a drone mother machine, a child machine, a retracting and releasing system, a child machine identification and positioning mechanism, an execution system and a visual recognition system, wherein the retracting and releasing system is arranged on the drone mother machine for releasing or retracting the child machine; the child machine identification and positioning mechanism is connected to the retracting and releasing system for identifying and locating the child machine; the execution system is arranged on the child machine for docking with the child machine identification and positioning mechanism; the visual recognition system is used to identify and locate the drone mother machine. The present invention can realize the stable release and recovery of a small multi-rotor drone by an aerial single-rotor drone, with controllable distance, simple principle, and convenient improvement and maintenance.

The invention provides a kitchen garbage biomass energy resource cascade recovery system, which comprises a pretreatment unit, a biomass energy resource cascade recovery unit, a biomass energy resource cascade recovery unit and a biomass energy resource cascade recovery unit, and is characterized in that the pretreatment unit is used for pretreating kitchen garbage and straws to obtain slurry and solids; the solid phase treatment unit comprises a biological hydrolysis device, a biological fermentation device and a biological decomposition device which are connected in sequence; the biological hydrolysis device is connected with the pretreatment unit; the product utilization unit is connected with the biological decomposition device; the liquid phase treatment unit comprises a dark fermentation hydrogen production device, a microbial electrolysis cell hydrogen production device and an anaerobic digestion methane production device which are connected in sequence; the dark fermentation hydrogen production device is connected with the pretreatment unit; and the tail water utilization unit is connected with the anaerobic digestion methane production device. The gas, the liquid and the solid generated by the recovery system are subjected to effective energy recovery and maximum resource utilization, no three wastes are generated, and the recovery system can be widely applied to the fields of agriculture, environmental protection, energy and the like.

The invention relates to the technical field of mahjong machines, in particular to a remote mahjong machine and a multi-user mahjong remote control system.The remote mahjong machine comprises a software part and a hardware part, and the hardware part comprises a plurality of mahjong devices arranged in various places and is in signal connection through a signal connection module in a controller; the mahjong equipment comprises a base and an upper end shell arranged at the upper end of the base, a rectangular barrier plate used for placing mahjong tiles is arranged in the base and fixedly connected to the base, and a tile picking structure is arranged on one side of the rectangular barrier plate and comprises a rotating motor fixedly arranged on the base; the output end of the rotating motor faces upwards and is fixedly provided with a first air cylinder, the output end of the first air cylinder is horizontally arranged and fixedly connected with a second air cylinder, the output end of the second air cylinder is fixedly connected with a third air cylinder, and the output end of the third air cylinder faces the interior of the rectangular baffle and is fixedly provided with a clamp. The clamp is fixedly provided with an identification camera, and one side of the rectangular barrier plate is provided with a transportation structure.

The invention relates to the field of chromium-containing waste liquid recovery, in particular to a method and system for recovering chromium in leaching waste liquid, and the method comprises the following steps: S1, adding alkali into the chromium-containing leaching waste liquid to adjust the pH value to 8 or above, and then adding ozone for oxidation to oxidize trivalent chromium into hexavalent chromium to obtain alkali-adjusted oxidized waste liquid; s2, adding a flocculation precipitator into the alkali-adjusting oxidation waste liquid, and removing impurities in a precipitation form to obtain a flocculation precipitation waste liquid; s3, acid is added into the flocculent precipitation waste liquid to adjust the pH value to 6.5 or below, then a reducing agent is added, hexavalent chromium is reduced into trivalent chromium, and acid-adjusted reduction waste liquid is obtained; s4, alkali is added into the acid-adjusted reduction waste liquid, the pH is adjusted to 8.5-9.5, trivalent chromium is precipitated in the form of chromic hydroxide, and chromic hydroxide precipitate and supernate are obtained. The method can enrich and recover the chromium element in the leaching waste liquid, has a high recovery rate, and has the advantages of high treatment efficiency, strong treatment capability, simple operation, stable recovery and the like.

The invention discloses an intelligent detection device capable of automatically and repeatedly measuring the sediment thickness of an engineering pile, and the device comprises a smearing assembly, the smearing assembly comprises a mounting plate, the two ends of the lower side of the mounting plate are rotatably connected with first connecting rods, each first connecting rod is rotatably connected with one end of a cross rod of a swing supporting rod, and the swing supporting rod is in an L shape; a vertical rod of the swinging supporting rod is connected with a smearing shaft; the invention relates to the technical field of sediment thickness detection, in particular to an intelligent detection device capable of automatically measuring the sediment thickness of an engineering pile for multiple times, winding and unwinding control of a test rope is achieved through a reel and a locking assembly, slow unwinding of the test rope is controlled through a limiting wheel and a motor, and measurement stability is guaranteed. The releasing length of the test rope is measured and calculated through the encoder, the sediment thickness is calculated, sediment data are imported into a management system in real time through the controller, and engineering pile data archiving is achieved.

The invention discloses a fuel cell hydrogen subsystem control method, equipment and a medium, belongs to the technical field of fuel cells, and is used for solving the problems of complex pipeline, large temperature difference between air and hydrogen, high internal friction, high cost and the like of an existing thermal management system and the technical problem of low operation efficiency caused by no high-precision regulation based on environmental change. The method comprises the following steps: performing intercooler-based flow direction control on cooling liquid in a gas-water separator and stack cooling liquid through a self-adaptive fuzzy PID (Proportion Integration Differentiation) controller to obtain a first cooling liquid flow direction control strategy; performing flow direction control on the cooling liquid in the gas-water separator and the stack cooling liquid based on the thermal management system to obtain a second cooling liquid flow direction control strategy; and according to a temperature feedback regulation control algorithm and based on a three-way valve, valve opening shunting control of the cooling liquid is carried out between the cooling liquid in the gas-water separator and the stack cooling liquid, and a third cooling liquid flow direction control strategy is obtained.

The invention relates to the technical field of copper-molybdenum separation inhibitors, and discloses a preparation method of a polythiocarboxylic acid amine copper-molybdenum separation inhibitor, which comprises the following steps of: separating and purifying tail liquid generated by preparing thionocarbamate to obtain sodium thioglycolate, and reacting with carbon disulfide by taking potassium hydroxide as a catalyst to obtain the polythiocarboxylic acid amine copper-molybdenum separation inhibitor. The novel polythiocarboxylic acid amine copper-molybdenum separation inhibitor is obtained. The resource utilization of the thionocarbamate tail liquid is realized, the raw materials are cheap and easy to obtain, and the process is green and environment-friendly. The polythiocarboxylic acid amine copper-molybdenum separation inhibitor has the advantages of being good in adaptability, safe, environmentally friendly, good in inhibition effect, simple in process, wide in production raw material source and the like.

This invention relates to the field of wastewater treatment technology, specifically to a metal-doped bismuth ferrite-based perovskite composite material, its preparation method, and its applications. The molecular formula of the metal-doped bismuth ferrite-based perovskite composite material is Bi. 1‑x A x Fe 1‑y B y O3; 0 ≤ x < 1, 0

A heat pump system for a vehicle includes: an air conditioning unit including a compressor, a second heat exchanger, a third heat exchanger, and a fourth heat exchanger connected by a refrigerant line to circulate refrigerant through the refrigerant line; and a cooler connected to the refrigerant line through a second connection line and configured to perform heat exchange between the refrigerant supplied from the air conditioning unit and the coolant to adjust a temperature of the coolant, in which the air conditioning unit further includes: a first control device provided in the refrigerant line downstream of the compressor; the first heat exchanger is connected to the first control device through a first connecting pipeline; a second control device provided upstream of the cooler and the fourth heat exchanger at a position where the refrigerant line is connected to the second connection line; a third control device provided in the refrigerant line between the fourth heat exchanger and the compressor; the third connecting pipeline comprises a first end and a second end; and a fourth control device.

The present application relates to copper nickel ore sorting technical field, specifically for low grade copper nickel ore combined sorting device and process, including heavy plate feeder, the output end of heavy plate feeder is connected with short distance closed belt conveyor, the present application can separate 87.7% of invalid gangue components in advance after the whole set of combined sorting process is put into operation, reduce the material volume of flotation section from the source, the reagent dosage and water and electricity energy consumption are reduced synchronously, effectively reduce the processing cost of low grade copper nickel ore, significantly improve the production profit level of the project, the waste rock produced by sorting is used as underground filling aggregate after fine crushing, which replaces the purchased gobi sandstone raw material, achieves closed loop utilization of solid waste resources, and meets the green mine development and construction guidelines.

A manufacturing apparatus (1A) includes a first gas introduction portion (20) provided on one end portion (10a) side of a calcination furnace (10) to introduce a gas into the calcination furnace (10), a gas discharge portion (30) provided on the other end portion (10b) side of the calcination furnace (10) to discharge the gas in the calcination furnace (10) to the outside, and a conveying apparatus (40) to convey a metal compound and a flux from the gas discharge portion (30) side to the first gas introduction portion (20) side. The calcination furnace (10) has a temperature increasing region (12A), a cooling region (14A), and a reaction region (13A) provided between the temperature increasing region (12A) and the cooling region (14A) and causing the metal compound and the flux to react. In the manufacturing apparatus (1A), a gas flow (AF1) generated by the gas introduced from the first gas introduction portion (20) causes the flux gasified in the reaction region (13A) to be powdered in the cooling region (14A), and the gas containing the powdered flux is sent to the gas discharge portion (30).

The light-weight aluminum alloy profile machining cooling device comprises a water storage base, a cooling chamber is fixedly installed on one side of the top of the water storage base, an inlet and outlet is formed in one side of the cooling chamber, a material containing box is arranged on one side of the cooling chamber, and a baffle is fixedly connected to one side of the material containing box; a water outlet groove is formed in the bottom of the material containing box. According to the light-weight aluminum alloy profile machining cooling device, through the design of the cooling chamber, the storage box, the baffle, the motor, the screw, the nut plate, the driving wheel, the driven wheel and the belt, the motor drives the driving wheel to rotate, and the belt drives the driven wheel and the screw to rotate synchronously; the nut plate, the baffle connected with the nut plate and the material containing box are pushed to stably enter and exit from the cooling chamber according to the threaded connection principle, manual carrying is not needed, manpower is saved, operation convenience is guaranteed, the stability and safety of sectional materials in the cooling process are guaranteed, and sectional material damage or safety accidents caused by misoperation or equipment failures are avoided.

The utility model discloses and provides an engineering surveying and mapping distance measuring scale, which comprises a shell, a measuring scale is wound on the inner wall of the shell, two groups of grooves are formed in the outer surface of one side of the shell, a plurality of groups of first circular plates are fixedly arranged in the two groups of grooves, one sides of the plurality of groups of first circular plates are connected with dampers, and the dampers are connected with the first circular plates. The first circular plate is connected with a damper, one end of the damper is connected with a second circular plate, one end of the second circular plate is connected with a buffer block, a spring is connected between the second circular plate and the first circular plate, the outer end of the buffer block is in an arc shape, and the outer surface of the buffer block is wrapped with rubber. When the measuring scale is recycled and is in contact with the buffer block, the damper can slow down the movement speed of the measuring scale, and meanwhile, the spring can absorb energy generated by collision, so that the collision force between the measuring scale and the shell is effectively reduced, and the risk that the measuring scale is damaged due to collision is remarkably reduced.

The invention discloses a pickled pepper preparation method, and belongs to the technical field of food processing.The method comprises the steps that fresh peppers are prepared; saline water recovery and classification: the recovered saline water is divided into strain source saline water and to-be-regenerated saline water according to flavor evaluation; solid microbial inoculum preparation: freeze drying and encapsulation embedding are performed on the strain source saline water, and a solid encapsulated microbial inoculum is prepared; regenerating the saline water, namely carrying out rough filtration and fine filtration on the saline water to be regenerated so as to remove substances of which the molecular weight is greater than 80 and less than 2000 Daltons; and preparing a fermentation starting liquid and fermenting. Through fine grading of saline water and functional preparation of the microbial inoculum, standardization and flavor stability of pickled pepper production are realized, and the problems of flavor degradation and batch instability caused by saline water circulation in a traditional process are fundamentally solved.

The invention relates to the technical field of unmanned aerial vehicles, in particular to unmanned aerial vehicle equipment for collaborative inspection, which comprises a mounting case, a recycling bin is fixedly connected to the center of the interior of the mounting case through bolts, an unmanned aerial vehicle is arranged at the upper end of the mounting case, and a clamping base is fixedly connected to the bottom of the unmanned aerial vehicle and abuts against the upper end of the mounting case. The bottom of the unmanned aerial vehicle is fixedly connected with a connecting box, the connecting box is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a first recycling wheel, a first connecting rope is wound around the outer wall of the first recycling wheel, and the side free end of the first connecting rope is fixedly connected with a clamping ball; and a plurality of fixing mechanisms capable of fixing and limiting the clamping balls are fixedly mounted in the recycling barrel, a pulling mechanism capable of pulling the fixing mechanisms is further fixedly mounted at the bottom end of the inner wall of the mounting case, manual auxiliary recycling is not needed, and simplicity and convenience are achieved.

The invention relates to a lithium battery positive electrode slurry AT9 shunting recovery method, which comprises an operation platform and side plates arranged on two sides of the operation platform, a bottom plate is slidably arranged on the side plates, an upper die head and a lower die head are arranged on the bottom plate, a lip is formed between the upper die head and the lower die head, an air suction port is arranged below the lip, and an adjusting plate is slidably arranged in the air suction port. An adjusting knob for driving the adjusting plate to move is arranged in the lower die head, a plurality of material pushing plates are slidably arranged on the surface of the lower die head, the surfaces of the material pushing plates are inclined planes, and rotating cylinders for driving the material pushing plates to move up and down are rotatably arranged below the material pushing plates; an adjusting knob drives an adjusting plate to move and drives a rotating cylinder to move up and down so as to change the lifting height of a material pushing plate, and the problems that a recycling structure is lacked, recycling cannot be distinguished when double-material gluing is adopted, waste materials are too much, slurry is located between liquid and solid and has adhesion, and the production efficiency is high are solved. The flowing speed of the sizing agent in the gasket is low, so that the sizing agent is not flat easily, and adhesive layers at coated positions are not uniform in height.

The present invention provides a gas phase determination method of dithiocyanomethane in aquatic products, and relates to the field of pesticide residue detection. The present invention aims to provide a gas chromatography (GC-PFPD) method for determining dithiocyanomethane in aquatic products, and to provide a simple, rapid and practical detection technology for monitoring dithiocyanomethane drug residues in aquatic products. The pretreatment method established in the present application is simple and easy to operate, and can enable stable and efficient recovery of MBT; the chromatographic conditions used in the present experiment make the peak shape of MBT sharp and symmetrical, without interference from impurity peaks. The method has high sensitivity, good repeatability and accuracy, and is suitable for residual analysis of dithiocyanomethane substances in aquatic products.

The application discloses a method for stably recovering carbon dioxide in a double-hearth kiln, and comprises the following steps: using a double-hearth kiln carbon dioxide stable recovery device to control the stable recovery of carbon dioxide in the double-hearth kiln; the control step comprises the following steps: when No. 1 kiln or No. 2 kiln is in a production stop state, electric valve 1 and electric valve 2 on the flue gas outlet pipeline of No. 1 kiln or No. 2 kiln are closed; when No. 1 kiln and No. 2 kiln are both in production, the combustion time and the reversing time of the kiln are set to be the same, and the reversing of the two kilns is ensured to be different; before the reversing period, the cooling air electric valve on the cold air pipeline of No. 1 kiln and No. 2 kiln is closed, and the opening degree of electric valve 1 is set to be 60%; during the production of No. 1 kiln and No. 2 kiln, the detection data of the pressure gauge is greater than 0 kpa, and electric valve 2 is opened; otherwise, electric valve 2 is closed, and the carbon dioxide recovery fan is reduced in rotation speed, etc. The application can solve the problem that the carbon dioxide concentration is reduced and the stable recovery cannot be realized during the reversing period of the existing double-hearth kiln.

The utility model relates to the field of bridge design, and discloses a bridge floor drainage and energy storage system which comprises a bridge, a drainage pipeline and a recovery module. The bridge comprises a bridge body and bridge piers, the bridge body is provided with a rainwater channel, and the rainwater channel communicates with the drainage pipeline; a limiting groove is formed in the side face of the pier and used for limiting the drainage pipeline. The drainage pipeline comprises a first pipeline and a second pipeline which are communicated in sequence, the first pipeline is communicated with the rainwater channel, and the second pipeline is arranged in the limiting groove; the bottom end of the second pipeline communicates with an energy dissipation pool hidden underground. The recovery module comprises a plurality of power generation modules detachably connected with the second pipeline and a power storage module arranged in the energy dissipation pool; rainwater on the bridge floor can enter the drainage pipeline along the rainwater channel and downwards impact the power generation modules, the power generation modules convert potential energy of the rainwater into electric energy and store the electric energy, the multiple power generation modules can more fully recover the potential energy of bridge drainage, and the recovery efficiency is higher.

The invention provides a microcirculation ecological planting system and planting method.The microcirculation ecological planting system comprises a base, a water conveying pipeline, a mounting unit and a planting pot; by arranging the water conveying pipeline communicated with the water storage tank in the base and arranging the flow guide part at the water permeable structure, at least one liquid flow guide path is formed between the adjacent planting pots with the height difference in the mounting unit through the flow guide part, and liquid in the planting pots can flow out through the water permeable structure and then flows out. Microcirculation of water resources is formed between the planting pot and the water storage tank along the liquid flow guide path. In the planting method, by adjusting the positions of the planting pots, the mounting positions of the planting pots can be further scientifically set and arranged, the planting pots can be flexibly arranged in the mounting units, and meanwhile it is guaranteed that the planting pots can obtain water delivery; therefore, stable cyclic utilization of water resources between the planting pots and the water storage tank can be achieved, and meanwhile the labor management cost is greatly reduced.

The present invention relates to the technical field of IGBT module testing, and discloses a device for testing IGBT modules, including a workbench, the bottom of the workbench has a support frame for supporting the workbench, the inner side of the workbench has a detection head, the outer side of the detection head has a control unit, the control unit is used to control the position of the detection head, the outer side of the workbench has a clamping part, the bottom of the clamping part is connected to the recovery part; the clamping part includes: a clamping plate fixed to the outer surface of the workbench, the inner side of the clamping plate has a positioning piece; a connecting rod, movably arranged inside the clamping plate, and the outer side of the connecting rod has a clamping block. The device for testing IGBT modules provided by the present invention can be used to test IGBT modules, and compared with ordinary testing devices, the testing device provided by the present invention has the advantages of being able to easily fix and clamp the module and to detect unqualified products.

The utility model belongs to the technical field of condensate conveying and heat exchange, and particularly relates to a condensate conveying and heat exchange system of a double-air-source floating ball power pump. The condensate conveying heat exchange system of the double-gas-source floating ball power pump comprises a tower bottom reboiler, the tower bottom reboiler is connected with a heating steam pipeline, and a pipeline connected with a collecting pipe is arranged at the bottom of the tower bottom reboiler; the collecting pipe is connected with the power pump set, and the power pump set is connected with the hot water heater through a top steam exhaust pipeline; a condensate outlet at the bottom of the hot water heater is provided with a pipeline flowing back to the collecting pipe, and the pipeline is provided with a thermometer. According to the condensate conveying and heat exchange system with the double-air-source floating ball power pumps, the design that the three floating ball power pumps are connected in parallel with the double air sources is adopted, and the Y-shaped filter and the double check valves are arranged, so that the operation stability of the system is guaranteed; meanwhile, the hot water heater is arranged, the utilization rate of steam waste heat is increased, the bypass is arranged at the hot water heater, loop control over the temperature control valve and the thermometer is achieved, and stable backflow of condensate is guaranteed.

The invention discloses an underground pitching excitation reaming tool which comprises a reamer short section and a ball containing short section connected to the upper portion of the reamer short section. The ball containing short section comprises a shell, a limiting barrel, a ball claw, an excitation ball, a spring seat and a first elastic piece. The spring seat is positioned below the ball claw, and the bottom of the ball claw is sectioned; the limiting cylinder comprises a small-diameter part and a large-diameter part which are distributed up and down, and a plurality of overflowing grooves for communicating the interiors of the small-diameter part and the large-diameter part; the inner diameter of the small-diameter part is smaller than the outer diameter of the ball claw in the natural state, and the inner diameter of the large-diameter part is larger than or equal to the outer diameter of the ball claw in the natural state. The reaming tool is used for solving the problem that in the prior art, due to the influence of an existing channel in a drill column, a reaming tool excited by pitching cannot be installed close to a drill bit, and the purposes that the reaming tool excited by pitching can also be installed close to the drill bit, the length of the section, where reaming cannot be conducted, of the well bottom is reduced, and the tripping frequency is reduced are achieved.

The disclosed venting liquefied natural gas recovery system and recovery method, comprising a condensation recovery heat exchanger, a feed inlet of the condensation recovery heat exchanger being communicated with a venting pipeline, and a pretreatment assembly for filtering the natural gas to be recovered being further arranged between the venting pipeline and the condensation recovery heat exchanger; the condensation recovery heat exchanger being communicated with a liquid nitrogen storage device through a liquid nitrogen feed pipe, and the condensation recovery heat exchanger being provided with a heat exchange coil and a nitrogen gas discharge pipe, two ends of the heat exchange coil being respectively extended to outside of the condensation recovery heat exchanger and communicated with the pretreatment assembly and a gas-liquid separation device, and the gas-liquid separation device being communicated with a natural gas storage device through a pipeline at a liquid outlet. The present application solves the problem of resource waste caused by direct combustion and discharge of the natural gas remaining in the process section in the prior art.

The present invention provides a heat pump system for a vehicle, which performs cooling or heating of a vehicle interior using a natural refrigerant, and effectively adjusts a temperature of a battery module using a single cooler that exchanges heat between the refrigerant and a coolant. A heat pump system for a vehicle includes: an air conditioning device including a compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger, and a fourth heat exchanger connected by a refrigerant line to circulate refrigerant through the refrigerant line; and a cooler configured to perform heat exchange between the refrigerant supplied from the air conditioning device and the coolant to adjust a temperature of the coolant. The air conditioning device further comprises a first control device, a second control device, a first connecting pipeline, a second connecting pipeline, a third control device and a third connecting pipeline.

The application discloses a kind of cooperation expired medicine, bauxite iron recovery method of pharmaceutical wastewater, comprising the following steps: S1, bauxite is crushed, grinds, and then mixed with hydrogen peroxide solution, and bauxite slurry is prepared;S2, the expired medicine, pharmaceutical wastewater after crushing is added in bauxite slurry, and is prepared as reaction raw material;S3, after stirring, reaction raw material is added in high temperature and high pressure reaction kettle, and after reaching supercritical state, electric heating is closed, and reaction is carried out by relying on oxidation self-heating until end;S4, after cooling, gas-liquid separation is carried out, and liquid-solid mixture is carried out magnetic separation, and Fe3O4 is recovered.The application realizes the dealkalization treatment of bauxite, and the iron in bauxite is stably recovered, and the remaining solid components can be better utilized, and due to the supercritical water oxidation on organic matter super strong oxidizability, the expired medicine in system is completed harmless degradation, and the heat generated by organic matter oxidation is relied on to reduce energy consumption cost.

This invention discloses a device and method for recovering organic matter and phosphorus from wastewater, belonging to the field of wastewater treatment technology. The method includes the following steps: (1) pumping the wastewater to be treated into a carbon and phosphorus capture tank and inoculating it with sludge to achieve preliminary enrichment of organic matter and phosphorus; (2) pumping the enriched sludge into a pre-oxidation tank and adding ferrate for stirring; (3) pumping the effluent into an anaerobic fermentation tank and adding ethanol to the system for anaerobic fermentation to convert the generated short-chain fatty acids into medium-chain fatty acids; (4) pumping the mixed liquid after anaerobic fermentation into a separation and recovery tank for stirring reaction, settling, and recovering phosphorus in the form of lapis lazuli; (5) returning the sludge settled in the anaerobic fermentation tank to the carbon and phosphorus capture tank through a sludge return system, and the system operates continuously and stably for ≥5 cycles. This invention uses the different valence state transformations of iron and their corresponding compounds as driving factors, and adopts a combination of carbon and phosphorus capture tanks, pre-oxidation tanks, anaerobic fermentation tanks, separation and recovery tanks and sludge return systems. Through biochemical and physicochemical means, microorganisms are regulated to efficiently capture organic matter, and iron compounds synergistically adsorb organic matter and phosphorus, ultimately realizing the recovery of organic matter and phosphorus from wastewater in the form of high-value-added medium-chain fatty acids and lapis lazuli.

A heat pump system for a vehicle includes: an air conditioning unit including a compressor, a first heat exchanger, a second heat exchanger, a first expansion valve, and a third heat exchanger connected through a refrigerant line to circulate refrigerant through the refrigerant line; and a cooler connected to the refrigerant line through a first connection line and adjusting a temperature of the coolant by heat exchanging the refrigerant supplied from the air conditioning unit with the coolant, in which the air conditioning unit further includes: a first valve provided in the refrigerant line between the first heat exchanger and the second heat exchanger; a second valve provided in the refrigerant line between the third heat exchanger and the compressor; a second expansion valve provided in the first connection line; the first end of the second connecting pipeline is connected to the refrigerant pipeline between the first heat exchanger and the second heat exchanger, and the second end of the second connecting pipeline is connected to the refrigerant pipeline between the second heat exchanger and the third heat exchanger; and a third expansion valve.