42results about How to "Realize self-recycling" patented technology

The invention discloses a harmless integrated treatment method of oily sludge. The method comprises steps as follows: (1) primary dewatering; (2) biological leaching modification; (3) deep dewatering;(4) low-temperature drying; (5) low-temperature pyrolysis. After the oily sludge is treated at the process stages, separated water is totally recovered to a sewage treatment system for purification treatment; organic carbon formed by sludge is discharged and serves as a new material for secondary utilization or combustion treatment. Heat produced in the process is totally returned to the system for recycling, and reduction, stabilization, harmless treatment and recycling of the oily sludge are thoroughly realized.

The invention relates to a quick all-season refrigerant filling and recycling system for a compressor test system. The quick all-season refrigerant filling and recycling system comprises a compressing and condensing unit and a refrigerant storage tank. When refrigerant is filled, an inlet of the compressing and condensing unit communicates with a gas-phase refrigerant interface formed in the compressor test system, an outlet of the compressing and condensing unit communicates with the refrigerant storage tank, the refrigerant storage tank communicates with a liquid-phase refrigerant interface formed in the compressor test system, and a heating device which is used for heating and gasifying liquid-phase refrigerant is arranged in the refrigerant storage tank; when the refrigerant is recycled, the inlet of the compressing and condensing unit communicates with the refrigerant storage tank, the outlet of the compressing and condensing unit communicates with the gas-phase refrigerant interface, the liquid-phase refrigerant interface communicates with the refrigerant storage tank, and a cooling device which is used for cooling the liquid-phase refrigerant is arranged in the refrigerant storage tank. According to the quick all-season refrigerant filling and recycling system, the defect that the compressing and condensing unit cannot be started or the refrigerant is slowly recycled in extreme weather conditions is overcome, and the all-season refrigerant filling and recycling of the compressor test system can be quickly realized by virtue of the heating device or the cooling device.

The invention discloses an AUV capture guiding method based on acoustic and optical guiding. The method comprises the following steps that after a mother ship receives a to-be-recovered signal transmitted by an AUV, four underwater acoustic transducers are adopted to transmit an acoustic signal to the AUV; the AUV receives the acoustic signals and calculates the time difference of different signals arriving at the AUV, the relative position of the AUV and the mother ship is calculated according to the time difference, the AUV sends the position information and the acoustic guiding state of theAUV to the mother ship, and the mother ship sends the acoustic guiding state to an AUV recovery device ROV; the AUV detects a guiding lamp signal arranged on the AUV recovery device ROV; when the AUVrecovery device ROV rear wall guiding lamp signal is detected, the position of the AUV recovery device ROV is estimated by identifying the relative position of a guiding lamp on the rear wall in theAUV recovery device ROV relative to a coordinate system formed by guiding lamps on the front side of the AUV recovery device ROV.

The invention relates to an external wall suspension type automatic slurry throwing machine. The problems of low slurry throwing efficiency and large labor amount of an external wall are effectively solved. According to the technical scheme, the machine comprises a suspended box body, a partition plate is arranged in the middle of the box body, a material storage area is arranged above the partition plate, a plurality of through holes are formed in the partition plate, a baffle plate capable of rotating is arranged below the through holes, and the baffle plate rotates reciprocally to open or close the through holes; a bottom plate of the box body is provided with a vertical plate, the left side of the vertical plate is a material returning area, the right side of the vertical plate is a material throwing area, and the right side face of the material throwing area is provided with an opening; a vibration plate is hinged to the vertical plate, a disc is installed at the bottom of the boxbody, and after the disc rotates, the vibration plate can be extruded to vibrate through a convex block; a telescopic rod is fixed on the lower end face of the partition plate, an extrusion plate isinstalled at the lower end of the telescopic rod, a one-way liquid inlet valve and a one-way liquid outlet valve are installed at the bottom of the material returning area, a pipeline with the upper end arranged in the material storage area is connected to the liquid outlet valve, and materials in the material returning area can be extruded through reciprocating up-down movement of the extrusion plate so as to flow back.

The invention discloses a self-recovery system for a cooling energy medium of a heating furnace. The system is mainly designed by aiming at the situation that the cooling energy medium is not fully utilized by an existing heating furnace cooling system. According to the self-recovery system for the cooling energy medium of the heating furnace, a first outlet distribution header is connected to an outlet of an in-furnace water beam and is connected with a second outlet distribution header through a pipeline group; a generator set is arranged on the pipeline group; a vapor water mixture in the first outlet distribution header is conveyed to the pipeline group; the vapor water mixture in the pipeline group supplies energy required by the operation of the generator set and is output to the second outlet distribution header through the generator set. According to the self-recovery system for the cooling energy medium of the heating furnace, the vapor water mixture formed by vaporizing saturated water through the in-furnace water beam is converted into the saturated water through the generator set, the saturated water is recycled, and electric energy generated by the generator set can be used for the self-operation of the system.

The invention relates to the technical field of ships, and provides a self-hidden bubble curtain protection system and an underwater vehicle. The self-hidden bubble curtain protection system comprises a steam supply device, a vacuumizing device and a plurality of nozzles, the steam supply device is connected with the multiple nozzles through steam paths, the multiple nozzles are used for being arranged on a protection body and spraying bubbles to the outside of the protection body, the vacuumizing device is used for being communicated with a water inlet in the protection body, and the multiple nozzles are arranged on the protection body. And therefore, negative pressure can be formed at the water inlet relative to the outside of the protection body. When the self-hidden bubble curtain protection system is applied to the underwater vehicle, the bubble curtain can be provided to absorb shock waves when the underwater vehicle is attacked by external weapons such as torpedoes; and the problems of secondary exposure and wake flow aggravation of the underwater vehicle body can be relieved, and the survivability of the underwater vehicle is improved.

The invention belongs to the technical field of autonomous recovery of unmanned boats, and specifically relates to an autonomous docking and recovery method of unmanned boats based on the Tiny-YOLOship target detection algorithm. The image of the unmanned boat is acquired through the bracket camera, and the unmanned boat camera acquires the image of the recovery bracket. , based on the Tiny‑YOLOship target detection algorithm, the position of the unmanned boat and recovery bracket in the image is detected in real time, and the precise position information of the unmanned boat and recovery bracket in the image is obtained. Combined with the internal parameters of the camera, the unmanned boat and recovery bracket are accurately obtained. The steering angle of the boat and the recovery bracket, using the steering angle as the control signal, effectively assists the unmanned boat and the recovery bracket to maintain alignment, and allows the unmanned boat to drive into the bracket, realizing the autonomous recovery of the unmanned boat, which is different from the traditional Compared with the autonomous docking and recovery method of the unmanned boat, the docking accuracy between the unmanned boat and the recovery bracket is significantly improved, and the accuracy of the autonomous docking and recovery of the unmanned boat is improved.

The invention discloses a method for combined processing of phosphogypsum and phosphate rock reverse flotation tailings. It first thermally decomposes the phosphate rock reverse flotation tailings to collect carbon dioxide in the gas phase, then hydrates the obtained powder, and then After hydration, the slurry is graded. The material with a large specific gravity is phosphorus mineral raw material, and the material with a small specific gravity is carbonized with carbon dioxide, then clarified and separated from solid and liquid. The solid material is calcium carbonate, and the liquid material is heavy magnesium water. After the gypsum is pretreated, it is added to the heavy magnesium water for double decomposition reaction, and the resulting carbon dioxide tower is returned to the carbonization tower, and the solid-liquid mixture is separated from the solid-liquid. The solid material is calcium carbonate, and the liquid material is magnesium sulfate solution. The resulting magnesium sulfate solution is recycled into the The carbonization tower is cyclically carbonized until the magnesium sulfate solution is saturated, and then crystallized to obtain magnesium sulfate heptahydrate crystals. The invention effectively connects the resources of two kinds of industrial wastes together, fully utilizes the high value-added elements in tailings and phosphogypsum, and realizes the autonomous recycling of resources.

The invention relates to an external wall suspension type automatic slurry throwing machine. The problems of low slurry throwing efficiency and large labor amount of an external wall are effectively solved. According to the technical scheme, the machine comprises a suspended box body, a partition plate is arranged in the middle of the box body, a material storage area is arranged above the partition plate, a plurality of through holes are formed in the partition plate, a baffle plate capable of rotating is arranged below the through holes, and the baffle plate rotates reciprocally to open or close the through holes; a bottom plate of the box body is provided with a vertical plate, the left side of the vertical plate is a material returning area, the right side of the vertical plate is a material throwing area, and the right side face of the material throwing area is provided with an opening; a vibration plate is hinged to the vertical plate, a disc is installed at the bottom of the boxbody, and after the disc rotates, the vibration plate can be extruded to vibrate through a convex block; a telescopic rod is fixed on the lower end face of the partition plate, an extrusion plate isinstalled at the lower end of the telescopic rod, a one-way liquid inlet valve and a one-way liquid outlet valve are installed at the bottom of the material returning area, a pipeline with the upper end arranged in the material storage area is connected to the liquid outlet valve, and materials in the material returning area can be extruded through reciprocating up-down movement of the extrusion plate so as to flow back.

The invention discloses an AUV capture and guidance method based on acoustic and optical guidance, including: when the mother ship receives the signal to be recovered transmitted by the AUV, four underwater acoustic transducers are used to send the acoustic signal to the AUV; the AUV receives the acoustic signal and calculates The time difference between different signals arriving at the AUV, and the relative position between the AUV and the mother ship are calculated according to the time difference. The AUV sends its position information and acoustic guidance status to the mother ship, and the mother ship sends the acoustic guidance status to the AUV recovery device ROV; the AUV detects the settings on the AUV recovery device ROV. When the guide light signal of the ROV rear wall of the AUV recovery device is detected, the relative position of the guide light on the rear wall of the AUV recovery device ROV relative to the coordinate system formed by the front side guide light is used to estimate the AUV recovery The location of the device ROV.

The invention discloses a self-recovery system for a cooling energy medium of a heating furnace. The system is mainly designed by aiming at the situation that the cooling energy medium is not fully utilized by an existing heating furnace cooling system. According to the self-recovery system for the cooling energy medium of the heating furnace, a first outlet distribution header is connected to an outlet of an in-furnace water beam and is connected with a second outlet distribution header through a pipeline group; a generator set is arranged on the pipeline group; a vapor water mixture in the first outlet distribution header is conveyed to the pipeline group; the vapor water mixture in the pipeline group supplies energy required by the operation of the generator set and is output to the second outlet distribution header through the generator set. According to the self-recovery system for the cooling energy medium of the heating furnace, the vapor water mixture formed by vaporizing saturated water through the in-furnace water beam is converted into the saturated water through the generator set, the saturated water is recycled, and electric energy generated by the generator set can be used for the self-operation of the system.

The invention discloses a harmless integrated treatment method of oily sludge. The method comprises steps as follows: (1) primary dewatering; (2) biological leaching modification; (3) deep dewatering;(4) low-temperature drying; (5) low-temperature pyrolysis. After the oily sludge is treated at the process stages, separated water is totally recovered to a sewage treatment system for purification treatment; organic carbon formed by sludge is discharged and serves as a new material for secondary utilization or combustion treatment. Heat produced in the process is totally returned to the system for recycling, and reduction, stabilization, harmless treatment and recycling of the oily sludge are thoroughly realized.

The invention discloses a preparation method of o-hydroxybenzonitrile. The preparation method comprises the following step: taking o-hydroxybenzoyl amide as a raw material, an amino acidic compound as a catalyst and dichloroethane as a solvent, and dehydrating to prepare o-hydroxybenzonitrile under the action of phosgene. According to the preparation method, the amino acidic compound is used as the catalyst, the catalytic activity is high, the product yield reaches 98%, and the atom economy is high; at the reaction temperature of 75-80 DEG C, a reaction system is in a micro reflowing state and sufficient reaction of the phosgene can be ensured, so that use of a high-boiling point solvent and loss of the phosgene in reflowing reaction are avoided and the energy consumption and the cost are reduced.

The invention discloses a method and a device for preparing chromite sodium in one step by using chromite as a raw material, specifically comprising the following steps: mixing chromite, soda ash, sodium hydroxide, and water according to the mass ratio of 1:1~1.1:0.4~0.5:5 Mix and stir the ratio and heat to 100°C to obtain the mixed liquid material; react the mixed liquid material for 2~3h at an oxygen pressure of 3~3.5Mpa and a temperature of 200~230°C; after the reaction, replace the oxygen with carbon dioxide gas, The temperature is 1.2~1.3Mpa, the temperature is 60~70°C, the reaction is 2~3h, and the mixed product is obtained; the mixed product is separated from the supernatant, and the supernatant is obtained at a temperature of 10~15°C, and white sodium bicarbonate crystals are obtained. After the separation of sodium bicarbonate, the solution is concentrated and then cooled to obtain the sodium bicarbonate product; in the present invention, the CO obtained by decomposing sodium bicarbonate 2 and sodium carbonate reuse, to achieve CO 2 , soda ash, heat energy efficient self-recycling, reducing energy waste.

The invention relates to a mortar spraying device for a building wall surface. The problems that the workload of mortar spraying onto an outer wall is heavy, and mortar spraying is inconvenient are effectively solved. According to the technical scheme, the mortar spraying device for the building wall surface comprises a suspended box body, a partition plate is arranged in the middle of the box body, a rotatable material distributing disc is mounted on the partition plate, a vertical plate is mounted on a bottom plate of the box body, a material returning area is arranged on the left side of the vertical plate, a material spraying area is arranged on the right side of the vertical plate, and an opening is formed in the right side face of the material spraying area. A vibrating plate is hinged to the vertical plate, a front disc and a rear disc which are arranged below the material distributing disc are mounted at the bottom of the box body, and the discs can rotate to extrude the vibrating plate to vibrate. A telescopic rod is fixed to the lower end face of the partition plate, an extruding plate is arranged at the lower end of the telescopic rod, and the extruding plate moves up and down in a reciprocating mode to extrude materials in the material returning area to enable the materials to flow back. According to the mortar spraying device for the building wall surface, large-area construction can be achieved, frame erecting is not needed, mortar brushing does not need to be conducted through layer-by-layer construction frames manually, mortar spraying is uniform, the speedis high, materials are saved, and self-recycling of redundant materials is achieved through vibration and extrusion.

The invention relates to the technical field of power electronics, in particular to the field of transformers. A cooling water unpowered self-circulation new energy transformer cooling system comprises a water flow channel arranged inside a transformer main body. The water flow channel is provided with a water inlet and a water outlet, and the water outlet is arranged above the transformer main body. The cooling water unpowered self-circulation new energy transformer cooling system further comprises a fluid radiator helping fluid to circulate to radiate heat. The fluid radiator is arranged on top of the transformer main body, the water outlet is connected with an inlet of the fluid radiator, and an outlet of the fluid radiator is connected with the water inlet of the water flow channel. The cooling water unpowered self-circulation new energy transformer cooling system is simple and reasonable in structure and achieves self-circulation and utilization of cooling water of the transformer main body by arranging the fluid radiator on the top of the transformer main body.

The invention discloses a distributed natural gas hydrogen production reactor which comprises an annular gas inlet passage and an annular gas discharge passage which are refluent in two directions and formed by a gas inlet passage outer wall sheet and a gas inlet passage inner wall sheet as well as a gas discharge passage outer wall sheet and a gas discharge passage inner wall sheet. The distributed natural gas hydrogen production reactor is characterized in that an annular-stripe shaped gas inlet passage separation sheet is inserted in the gas inlet passage to divide the gas inlet passage into a first gas inlet passage and a second gas inlet passage. By the invention, fuel gas and oxidizing gas which are used in reaction can enter the center of the reactor in a non-premixed state, thereby avoiding flame drafting caused by premixing before the fuel gas and the oxidizing gas enter a porous medium and preventing the explosion hazard because of premixing. The distributed natural gas hydrogen production reactor can be widely applied to combustion reaction devices of low-concentration flammable gases, including oil layer gases in production of coal mine ventilation gas, natural gas, methane and petroleum, or flammable waste gas discharged in chemical production.

The invention relates to a quick all-season refrigerant filling and recycling system for a compressor test system. The quick all-season refrigerant filling and recycling system comprises a compressing and condensing unit and a refrigerant storage tank. When refrigerant is filled, an inlet of the compressing and condensing unit communicates with a gas-phase refrigerant interface formed in the compressor test system, an outlet of the compressing and condensing unit communicates with the refrigerant storage tank, the refrigerant storage tank communicates with a liquid-phase refrigerant interface formed in the compressor test system, and a heating device which is used for heating and gasifying liquid-phase refrigerant is arranged in the refrigerant storage tank; when the refrigerant is recycled, the inlet of the compressing and condensing unit communicates with the refrigerant storage tank, the outlet of the compressing and condensing unit communicates with the gas-phase refrigerant interface, the liquid-phase refrigerant interface communicates with the refrigerant storage tank, and a cooling device which is used for cooling the liquid-phase refrigerant is arranged in the refrigerant storage tank. According to the quick all-season refrigerant filling and recycling system, the defect that the compressing and condensing unit cannot be started or the refrigerant is slowly recycled in extreme weather conditions is overcome, and the all-season refrigerant filling and recycling of the compressor test system can be quickly realized by virtue of the heating device or the cooling device.