30results about How to "Avoid erosion damage" patented technology

The invention discloses a weed removal and solenopsis invicta prevention and control integrated system for a photovoltaic power station, and relates to the technical field of photovoltaic power stations. A linear cutting device is mounted below a photovoltaic panel, so that automatic removal of weeds is realized, and the cost of manual weed removal is reduced; the collecting tank is arranged below the wire cutting device and connected with the conveying device, cut weeds are conveyed to the designated trapping unit, and organic combination and integration of the device are achieved. According to the method, the weeds obtained through wire cutting are used for controlling the solenopsis invicta, chemical additives are not used, the environmental benefits are improved, the concept of protecting the environment is practiced, the cut weeds are utilized again, the secondary cost for treating the weeds is reduced, and the economic benefits of a power station are improved.

The utility model relates to the technical field of wind driven generator wind wheels, in particular to a wind driven generator wind wheel installation structure which comprises a vertical rod, a wind driven generator body and a wind wheel body, the wind driven generator body is fixedly installed at the top end of the vertical rod, and a reinforcing butt joint structure is arranged on the outer side of the wind wheel body. The reinforcing butt joint structure comprises open grooves, butt joint blocks and reinforcing ribs, the multiple open grooves are fixedly formed in the outer wall of the wind wheel body, and the multiple reinforcing ribs are fixedly connected to the interiors of the multiple butt joint blocks. According to the wind wheel mounting structure of the wind driven generator, a plurality of reinforcing ribs are welded to the interior of the butt joint block, then the butt joint block and the open groove are fixed through manual welding, the penetrating rod transversely penetrates through the interior of the wind power blade, the force arm between the end of the wind power blade and the connector is reduced, and the problem that the wind power blade is too long and prone to bending is solved; through a more stable and firmer installation mode, the stability of the installation mode of the wind wheel installation structure of the wind driven generator is improved.

The present invention relates to the technical field of bladeless wind power generation, and in particular to a lightning protection device for bladeless wind power generation, comprising a base, a support assembly is installed on the upper end of the base, a swing arm mechanism is installed on the upper end of the base, a connecting tube is connected to the upper end of the swing arm mechanism, an energy capture assembly is installed on the outer side of the connecting tube, an electric energy assembly is installed between the energy capture assembly and the support assembly, a fixing mechanism is installed on the upper outer side of the support assembly, and a lightning protection mechanism is installed on the upper end of the fixing mechanism. Compared with the existing technology, the structural design of the present invention is reasonable and practical, and the lightning protection effect is effectively achieved through the vertically installed lightning protection mechanism, which effectively protects the bladeless wind power generation equipment from lightning strikes, and is convenient for effective clamping installation and stable support of the lightning protection mechanism, and is convenient for protection against impact, etc., which effectively improves the stable use effect of the lightning protection mechanism.

The utility model discloses an intelligent EPC flow control device which comprises an intelligent EPC flow control device body, a screen is arranged on the front face of the intelligent EPC flow control device body, the intelligent EPC flow control device body is provided with a protection mechanism used for shielding and protecting the screen, the protection mechanism comprises a protection cover and an observation plate, the protection cover is used for shielding and protecting the screen, and the observation plate is used for observing the screen. The device comprises a plurality of connecting plates, a plurality of sliding plates, a plurality of positioning columns and a plurality of positioning blocks, and the connecting plates are clamped with the positioning blocks through the sliding plates and the positioning columns. According to the intelligent EPC flow control device, the protective cover, the observation plate, the connecting plate, the connecting rod, the sliding plate, the positioning column and the positioning block are matched with one another, the protective cover is connected with the front face of the intelligent EPC flow control device body in a sleeved mode, the sliding plate drives the positioning column to be connected with the positioning block, and a screen is observed through the observation plate; the screen on the intelligent EPC flow control device body can be shielded and protected, and the screen can be prevented from being eroded and damaged.

The utility model relates to the technical field of vegetable washing, in particular to a bubble vegetable washing machine which comprises a vegetable washing machine body, the vegetable washing machine body comprises a machine box, a material groove is formed in the machine box, a conveying net belt is arranged in cooperation with the material groove, a first mounting frame is arranged at the top of the material groove, and a spraying pipe is arranged on the first mounting frame through a bearing; a supporting frame matched with the conveying mesh belt is arranged on the material tank, a second mounting frame is arranged on the supporting frame, a plurality of flushing pipes are arranged on the second mounting frame through bearings, flushing heads are arranged on the flushing pipes, one end of each of the spraying pipe and the flushing pipes is sealed, and the other end of each of the spraying pipe and the flushing pipes is provided with a water inlet pipe through a sealing bearing; a rotation adjusting structure is arranged between the spraying pipe and the washing pipe, a high-low frequency bubble generating structure matched with the material groove is arranged in the machine box, the washing angle of vegetables during washing can be flexibly adjusted, the washing sufficiency is improved, and the erosion effect on the vegetables in the washing process is reduced.

The utility model discloses a pH value regulator dissolving and preparing device with a protective structure, which comprises a base, the top end of one side of the base is fixedly connected with a device main body, the top end of the other side of the base is fixedly connected with two groups of connecting seats, and the top end of the device main body is provided with a sealing cover plate. The device body is sleeved with a protection assembly providing strong protection performance. According to the pH value regulator dissolving and preparing device with the protection structure, by arranging an outer sealing layer, a moisture-proof frame, a reinforcing inner plate, an inner connecting seat and a connecting plate, powerful moisture-proof protection is provided for the outer wall of the device main body, the outer wall is prevented from being eroded and damaged due to long-time contact with humid air, moisture is effectively isolated, and the service life of the device is prolonged. The problems that equipment does not provide all-around powerful protection measures, after the equipment is used for a long time, the outer wall of a container is prone to being damaged, follow-up use of the container is affected, the service life of the container is greatly shortened, and meanwhile the fixity of the container cannot be enhanced are solved.

The invention discloses a corrosion-resistant and weathering-resistant steel-seawater sea sand concrete column component and a construction method, and relates to the field of ocean engineering structures. According to the scheme, through multi-layer protection and modular design, corrosion resistance, erosion resistance and impact resistance are remarkably improved, and the construction period is shortened. The protection column component adopts the design of combining the prefabricated cement sleeve, the filler and the corrosion-resistant and weather-resistant steel supporting ribs, a multi-layer protection mechanism is formed under the long-term impact of sea waves, the supporting ribs and the filler can continuously provide protection after the local part of the base body is eroded and lost, long-term use is guaranteed through automatic filling of the filler, and the service life of the base body is prolonged. Impact force is consumed step by step through force unloading design of the base body and the filler, secondary supporting is achieved through deformation of the prefabricated cement sleeve and combination of the prefabricated cement sleeve and the core body, the impact resistance is improved, in addition, the protection column component forms a high-water-potential buffering area through the seawater flowing characteristic, erosion force is reduced, the safety of the core structure is protected, and the scheme is simple in structure, convenient to maintain and low in cost. The method is suitable for long-term marine environment application.

The pipeline burying supporting mechanism for engineering construction comprises a pipeline body and a supporting mechanism body, the pipeline body is located in the supporting mechanism body, the supporting mechanism body comprises two mounting plates, two fixing frames and an isolation cover, a bearing support is arranged on one side of the bottom of each mounting plate, and the bearing supports are connected with the pipeline body. A base plate is inserted between the two bearing supports, the fixing frame is located above the bearing supports, a plurality of pipe penetrating openings are formed in the side, close to the mounting plate, of the fixing frame, and a fastening plate is slidably connected to the side, away from the mounting plate, of the fixing frame through a limiting sliding groove; a plurality of springs are arranged on the portions, located in the limiting sliding grooves, of the fastening plates, the pipeline body is clamped and fixed through the fastening plates on the two sides, and the upper portions of the mounting plates on the two sides are connected with an isolation cover in a buckled mode.

The utility model discloses a solar street lamp with a lifting function, and particularly relates to the technical field of street lamps, the solar street lamp comprises a base, the upper end of the base is fixedly connected with a fixed seat, the inner wall of the fixed seat is movably connected with a first motor, and the output end of the first motor is in transmission connection with a rotary table; a sliding groove plate is fixedly connected to the upper end of the rotary table, a lifting device is movably connected to the left end of the sliding groove plate, a tooth groove plate is slidably connected to the inner wall of the sliding groove plate, a rotating device is fixedly connected to the upper end of the tooth groove plate, and a protection device is fixedly connected to the upper end of the rotating device. According to the solar street lamp with the lifting function, the solar street lamp can be lifted, so that maintenance personnel can conveniently overhaul the solar street lamp, the angle of the street lamp can be conveniently adjusted, the irradiation range of equipment is effectively enlarged, the solar street lamp is more flexible and convenient to use, the street lamp can be shielded, and a lamp body is prevented from being directly eroded and damaged by the sun and rain; and a certain protection effect is achieved.

The utility model discloses an environment-friendly gas ring main box with a pressure relief protection function, which comprises an equipment main body, two groups of sealing protection doors are movably connected to the front end of the equipment main body, a mounting frame is arranged at the top end of the outside of the equipment main body, and a circle of outer shell is fixedly connected to the outside of the equipment main body. The top end of the exterior of the outer shell is fixedly connected with two sets of fixing frames. According to the environment-friendly gas ring main unit with the pressure relief protection function, through the arrangement of the mounting frame, the fixing frame, the linkage shaft, the rotating rod, the ventilation groove and the driving motor, high-pressure gas is rapidly discharged outwards, the safety of the equipment body is improved, extrusion damage to the inner wall is reduced, manual operation is not needed, and the working efficiency is improved. The problems that when the internal pressure of an environment-friendly gas ring main unit is too large, pressure cannot be quickly relieved to ensure balance of internal and external pressures of equipment, the inner wall of the equipment is squeezed to a certain degree, and the inner wall deforms to affect subsequent use are solved.

The utility model provides an outdoor rainproof air compressor box body, and belongs to the technical field of box bodies. The rain-proof structure solves the problems that an existing rain-proof structure of the air compressor box body is complex, and production cost is high. The outdoor rainproof air compressor box comprises a box top cover, a box body and box bottom feet. The box body top cover and the box body are integrally designed, the interior of the box body top cover is of a communicated cavity structure, the box body top cover is of a pinnacle slope structure, the bottom face of the box body top cover extends out of the outer side of the box body to form a top cover eave, and a plurality of exhaust holes are formed in the top cover eave at equal intervals. An air inlet and outlet assembly is installed on the upper portion of the front side of the box body, heat dissipation holes are formed in the lower portions of the two sides of the box body, inclined baffles are arranged at the positions, located in the box body, of the heat dissipation holes, and the inclined baffles gradually incline towards the inner side wall of the box body from top to bottom till the bottoms of the heat dissipation holes are connected with the inner side wall of the box body. The utility model has the advantages of water and rain proofing, simple structure and low production cost, and is not easy to damage.

The utility model discloses a bathroom wooden door pocket moisture-proof device which comprises a door pocket body, a shell is fixedly installed at the bottom of the surface of the door pocket body, a nut is fixedly connected to the top of an inner cavity of the shell, an inner cavity of the nut is in threaded connection with an adjusting bolt, and the bottom of the adjusting bolt is movably connected with a bearing. The bottom of the bearing is fixedly connected with a sliding plate, and one side of the bottom of the sliding plate is fixedly connected with a mounting plate. According to the anti-overflow door pocket, accumulated water flow can be effectively blocked through the protection inclined plate, the situation that the door pocket body is eroded and damaged due to water flow overflow is avoided, meanwhile, the water flow generated through impact is backflushed through the inclined face on the surface, the door pocket body and the bottom of a door are effectively protected, and the service life of the door pocket is prolonged. And meanwhile, the water flow is prevented from overflowing and falling to the ground outside the toilet to bring troubles to residents, so that the use efficiency of the door pocket body is improved, and meanwhile, the troubles of the residents are also solved.

This invention provides a vacuum oil filtration device. The vacuum pump and vacuum pipeline create a vacuum in the oil storage chamber, achieving a negative pressure state. Since the pressure above the filter screen is atmospheric, higher than the pressure inside the oil storage chamber, the oil on the filter screen is forced through the atmospheric pressure, thus improving filtration efficiency. An oil return tank is located on the main section of the vacuum pipeline, allowing oil to fall into it as it flows along the vacuum pipeline. This prevents oil from continuing to move along the pipeline into the vacuum pump, thus preventing damage to the vacuum pump from oil corrosion during the evacuation process in the oil storage chamber, extending the pump's lifespan and reducing maintenance costs.

The utility model discloses a thick ingot spray cooling device for ferro-molybdenum production, which comprises a spray room and a steel rail arranged on a roadbed at the bottom of the spray room, a flat transport vehicle is arranged on the steel rail, and a first traction mechanism and a second traction mechanism are respectively arranged on two sides of the spray room. A U-shaped spraying component is arranged in the spraying room, and one end of the U-shaped spraying component is communicated with a cooling water supply mechanism. The utility model relates to the technical field of ferro-molybdenum alloy smelting, an existing ferro-molybdenum ingot spraying cooling system is improved, the semi-surrounding type U-shaped spraying component is additionally arranged in the spraying room, and the U-shaped spraying component is arranged in the spraying room. Therefore, the contact area between the spraying cooling water and the ferromolybdenum ingot is greatly increased, and the cooling efficiency is effectively improved; water flowing out of the steel tray is guided through the flow guide grooves, so that erosion damage of cooling water to a flat transport vehicle, a steel rail track and a steel rail roadbed is effectively prevented, the operation reliability of the device is improved, and the maintenance cost is reduced.

The invention relates to the technical field of hot air backflow prevention for condensers, and discloses a hot air backflow prevention device for an evaporative condenser and a method for using the device, including a backflow prevention component, wherein the backflow prevention component includes a fixed bracket. The invention utilizes the hot air discharged from the air outlet, specifically when the hot air discharged from the air outlet touches an isolation plate with a lower temperature, a large number of water droplets will be generated on the surface of the isolation plate, and at the same time, the hot air or natural wind blown out from the air outlet will blow the windward plate, and due to the inclined design of the windward plate, the windward plate will drive a scraper rod to slide toward the back, and the scraper rod will scrape off the condensed water droplets on the isolation plate while sliding, and as the scraper rod moves, the slide plate will be squeezed by the extension frame and then slide toward the front, and the slide plate will drive the rack to move in the process of moving toward the front, and the rack will drive the rotating rod to rotate through the gear, and the rotating rod will drive the windward plate to rotate through the support block and the rotating block, so that the windward plate changes direction, and at this time, the hot air blowing the windward plate will drive the scraper rod to move toward the front.

The present invention relates to the field of oil and gas drilling technology, and in particular to a downhole electronic component cabin cooling system, which aims to solve the problem that downhole instruments are greatly reduced in stability, work efficiency and service life due to high temperature. The present invention includes an instrument body and a semiconductor refrigeration component; the instrument body includes a cylinder and a cover plate, a storage bin is provided on the cylinder, the semiconductor refrigeration surface of the semiconductor refrigeration component and the storage bin form an electronic component cabin to accommodate electronic components, and the cover plate is in contact with the semiconductor heat dissipation surface of the semiconductor refrigeration component; a heat dissipation channel is provided on the instrument body to allow drilling fluid to pass through and cool the cover plate. The present invention uses Peltier active cooling technology to cool the downhole electronic component cabin through semiconductor refrigeration components to ensure the normal operation and service life of electronic components. At the same time, a heat dissipation channel is provided to use drilling fluid to take away the heat transferred to the cover plate by the semiconductor refrigeration component, assist the semiconductor refrigeration component in heat dissipation, and avoid untimely heat dissipation.

The utility model relates to the technical field of motors, and discloses a motor cover plate assembly with a damping effect, which comprises a cover plate main body, the front end of the bottom of the cover plate main body is fixedly connected with a connecting seat, and the top of the cover plate main body is provided with a safety assembly for providing damping support. The safety assembly comprises an auxiliary ferrule, a buffering supporting column, a guiding round rod, a base and a limiting base. According to the motor cover plate assembly with the damping effect, through the arrangement of the auxiliary ferrule, the buffer supporting columns, the guide round rods, the base and the limiting base, powerful supporting force and stability are provided for the inner walls of the cover plate body and the auxiliary ferrule, the cover plate body is prevented from vibrating along with a motor, meanwhile, the auxiliary ferrule and the inner wall of the cover plate body are prevented from collapsing, and the service life of the motor is prolonged. The problems that a cover plate adopts a thin plate body, but the stability of the plate body is weak, a certain vibration sense can be generated during the operation period of a motor, huge destructive power is caused to the cover plate, and the service life of the cover plate is shortened are solved.

The invention relates to the technical field of gold bonding wire machining, and discloses a gold bonding wire cleaning device and a technology thereof.The gold bonding wire cleaning device comprises a shell and a gold bonding wire, and the shell is provided with a conveying mechanism used for conveying the gold bonding wire; a testing mechanism is arranged on the shell and used for carrying out smooth testing on the surface of the gold bonding wire, the testing mechanism comprises a first mounting seat arranged on the shell, a plurality of rotating plates are rotationally arranged in the first mounting seat in the circumferential direction, and a complete circular ring matched with the surface of the gold bonding wire is formed through the rotating plates; two liquid conveying mechanisms are sequentially arranged on the shell in the conveying direction of the gold bonding wire and used for conducting acid pickling and water washing on the gold bonding wire correspondingly. According to the gold bonding wire cleaning device and the technology thereof, a smooth test is carried out in the gold bonding wire conveying process, the acid pickling, water washing and polishing processes are triggered only when it is measured that protrusions are uneven at a certain position of the surface, and therefore precise cleaning is achieved.

An underground non-negative pressure water supply device comprises a pressurized water supply unit which is covered with an isolation hood. The lower end face of the isolation cover is provided with a dismounting port communicated with the internal space of the isolation cover. The lower end face of the isolation cover is provided with a seat plate attached to the isolation cover, and the seat plate shields and seals the disassembly and assembly opening. The pressurized water supply unit is arranged on the upper surface of the seat plate; the seat plate and the lower end of the isolation cover are fixed through a fixing structure; the outer wall of the isolation cover is provided with a plurality of pipe guiding holes communicated with the inner space of the isolation cover. A sealing ring matched with the guide pipe hole is arranged in the guide pipe hole; and an inner sealing part attached to the inner wall of the isolation cover is arranged on the outer peripheral surface of the inner end of the sealing ring. The buried non-negative pressure water supply equipment not only can effectively prevent indoor space from being occupied, but also can guarantee that electrical elements are not damaged, and therefore the service life is effectively guaranteed.

The utility model discloses a reinforced lining of a PC anchoring part, which comprises an outer decorative plate, a lining wall plate and anchoring mechanisms, the outer decorative plate and the lining wall plate are connected through a plurality of anchoring mechanisms, each anchoring mechanism comprises an anchoring pipe I and an anchoring pipe II, the anchoring pipe I and the anchoring pipe II are detachably connected, and the anchoring pipe I and the anchoring pipe II are detachably connected. One end of the first anchoring pipe is arranged in the outer decorating plate, the other end of the first anchoring pipe is flush with the plate face of the outer decorating plate or protrudes outwards, and one end of the first anchoring pipe, the second anchoring pipe and the lining wall plate are integrally constructed and formed. The outer decorative plate and the lining wallboard are stably and firmly connected through the anchoring mechanism, the anchoring connection strength is high, the arranged first anchoring pipe does not stretch out of the exposed face of the outer decorative plate, the decorative effect of the exposed face of the outer decorative plate can be ensured, the anchoring mechanism can be prevented from being eroded and damaged, the service life of the anchoring mechanism is prolonged, and the service life of the outer decorative plate is prolonged. And therefore, the anchoring and mounting effects of the outer decorative plate and the lining wall plate can be improved.

The utility model relates to the technical field of sewage treatment, in particular to a basement sewage lifting integrated complete device. The basement sewage lifting integrated complete device comprises a water storage tank and a water inlet pipe embedded in the top end of the water storage tank, the bottom end of the water storage tank communicates with a drainage pipe, a mounting plate is fixedly mounted on the side, located on the drainage pipe, of the water storage tank, and a booster pump is mounted on the mounting plate; the lead pipe is mounted at the top end of the water storage tank; the cutting and filtering mechanism used for sewage filtering, switching and flow guiding is installed in the guide connection pipe, the cutting and filtering mechanism comprises a tangential rod and a flow guiding cover, the tangential rod is rotationally installed at one end of the guide connection pipe, and a first semi-cylindrical block for alternately sealing the water inlet pipe and the bypass pipe is installed on the side wall, stretching into the guide connection pipe, of the tangential rod; a lengthening rod is installed at the front end of the tangential rod, and the flow guide cover is installed at the other end of the lead pipe. The basement sewage lifting integrated complete device provided by the utility model has the advantages of convenience in maintenance, filtration and backwashing.

The butterfly valve with the good protection performance comprises a butterfly valve body, connecting pipes are arranged on the two sides of the butterfly valve body correspondingly, the connecting pipes on the two sides are fixedly connected with the butterfly valve body through bolts, a fixing rod is fixedly installed on the upper surface of the butterfly valve body, and an electric actuator is fixedly installed at the upper end of the fixing rod; a protection mechanism is arranged outside the butterfly valve body, and a manual driving mechanism is arranged on the upper side of the butterfly valve body. Through use of the protection mechanism, the butterfly valve can be protected through the first fixing shell and the second fixing shell, a sealing strip is connected with a sealing groove in a clamped mode, when the first fixing shell and the second fixing shell are clamped, a sealing gasket in the sealing groove can be extruded, and the first fixing shell and the second fixing shell are sealed; the butterfly valve is prevented from being eroded and damaged by rainwater or some corrosive liquid, and the practicability is improved.

The utility model discloses a chemical additive processing reaction kettle which comprises a reaction kettle body, the bottom end of a chain is fixedly connected with a joining cover, the bottom of the joining cover is in threaded connection with a threaded ring, and the bottom of the threaded ring is fixedly connected with a joining box. According to the reaction kettle disclosed by the utility model, through matched use of the connecting cover and the connecting box, when the reaction kettle body and the stirring blades are cleaned, a cleaning agent can be put into the connecting box, and the connecting ring is hung on the fixing ring, so that the connecting box can be swung through rotation of the stirring blades; the inner wall of the reaction kettle body can be cleaned by spraying a cleaning agent in the reaction kettle body to the inner wall of the reaction kettle body through holes of a connecting cover, then water is injected from a feeding port and is matched with stirring blades to clean the inner wall, and the device can uniformly mix the agent with clean water, so that the device can perform auxiliary cleaning on the reaction kettle, the cleaning effect on the inner wall of the reaction kettle body is improved, and the service life of the reaction kettle body is prolonged. The reaction kettle has the effect of conveniently cleaning the reaction kettle, and prevents the reaction kettle from being eroded and damaged due to long-time sticking of medicine residues on the inner wall.

The hydraulic assembly of the offshore oil platform comprises a hydraulic cylinder body, the outer side of the hydraulic cylinder body is fixedly connected with an injection pipe, the upper end of the interior of the hydraulic cylinder body is fixedly connected with a sealing top plate, the interior of the sealing top plate is connected with a telescopic column in a sliding mode, and a hand screwing piece arranged in a first sealing mechanism is rotated; a two-way screw rod rotates under the meshing rotation of a driven gear and a driving gear, so that sealing cover plates arranged at the upper end and the lower end move relatively under the rotation of the two-way screw rod, and an external oil conveying pipe and an injection pipe are clamped and sealed by the sealing cover plates; second rubber rings arranged on the inner sides of the sealing cover plates can improve the sealing performance of the two sealing cover plates in the clamping process, so that the possibility that seawater permeates into the hydraulic cylinder body is avoided, and meanwhile the situation that due to the fact that an external oil conveying pipe and an injection pipe are not tightly connected, seawater enters the hydraulic cylinder body, and corrosion damage is caused can be avoided.

The present invention discloses a method for mining a broken ore body with downward access filling under the condition of water conduction in the lower plate, which divides the ore body into upper plate ore body and lower plate ore body with reference to the water conduction belt, so as to separate the ore body in the water conduction area from the ore body in the non-water conduction area. Among them, for the ore body in the non-water conduction area, the mining field access of the upper plate ore body is arranged perpendicular to the direction of the ore body to recover the upper plate ore body mining field, so as to achieve stable recovery of the upper plate ore body; for the ore body in the water conduction area, the mining field access of the lower plate ore body is arranged along the direction of the ore body to recover the lower plate ore body mining field, and a drainage project is arranged in the mining field access of the lower plate ore body, so that the direction of the lower plate ore body access is consistent with the extension direction of the water conduction belt, and the arrangement of the ore body drainage project is achieved with the shortest path; the present invention not only greatly improves the mining environment of the ore body, realizes the optimization and improvement of the mining conditions of the ore body, but also controls the recovery cost, and does not require the coordinated management and support of a professional waterproofing technical team.

The hot-blast stove cyclic heating device comprises an acidification roasting kiln and a hot-blast stove used in cooperation with the acidification roasting kiln, a hot air outlet of the hot-blast stove is communicated with a heat exchange inlet of the acidification roasting kiln through a pipeline, and one end of a combustion nozzle of the hot-blast stove is communicated with a natural gas inlet pipe; and a hot air inlet of the hot air furnace communicates with an air outlet of the air-air heat exchange assembly through a pipeline. According to the hot-blast stove cyclic heating device and the using method thereof, the medium-temperature flue gas subjected to heat exchange with the acidification roasting kiln is circularly conveyed into the hot-blast stove to be mixed with air, so that cyclic utilization of medium-temperature gas is achieved, and part of the medium-temperature gas is used for heat exchange of air conveyed into the hot-blast stove through the air-air heat exchange assembly; while the temperature of the discharged flue gas is reduced, reliable guarantee is provided for rapid and uniform temperature rise of the acidification roasting kiln, and efficient utilization of the temperature of the discharged flue gas is realized.

The utility model discloses a multi-angle adjustable LED screen body ground support base in the technical field of LED screen body ground support bases, which comprises a base, an adjusting mechanism and a drainage mechanism are arranged on the base, the adjusting mechanism comprises an LED display screen, the LED display screen is arranged above the base, the upper end of the base is assembled and connected with a support seat, and the support seat is connected with the drainage mechanism. A support is fixedly connected to the side wall of the supporting seat, a rotating column is rotatably connected to the interior of the support, an electric push rod is fixedly connected to the front end of the rotating column, a connecting column is fixedly connected to the output end of the electric push rod, a connecting seat is fixedly connected to the upper end of the connecting column, and an adjusting seat is rotatably connected to the interior of the connecting seat through a rotating shaft. The end, away from the connecting base, of the adjusting base is fixedly connected to the surface of the connecting plate. According to the LED screen body ground supporting base, the LED display screen can be adjusted at any angle.

The utility model discloses a stainless steel composite wire, which relates to the technical field of stainless steel composite wires, and comprises a stainless steel inner core and first memory protection layers, the first memory protection layers are annularly arrayed on the outer surface of the stainless steel inner core, and the first memory protection layers are coated with compression-resistant protection layers. A second memory protection layer is arranged outside the pressure-resistant protection layer in an annular array mode, and an outer protection layer is arranged outside the second memory protection layer. According to the stainless steel composite wire rod, by arranging the first memory protection layer and the second memory protection layer, structural damage caused by external acting force can be reduced to a certain extent, and by using the compression-resistant protection layer and the outer protection layer, it can be guaranteed that the whole wire rod structure has enough supporting performance; the polytetrafluoroethylene protective layer is sprayed on the surface of the stainless steel inner core, so that the stainless steel inner core can be effectively guaranteed to still have enough anti-rust protection under the condition that each external structure is damaged.

The utility model discloses an intelligent measurement circuit breaker null line connection structure, which comprises a circuit breaker shell, a null line combination hub, a female header connector and a null line pin header, and is characterized in that the null line combination hub is arranged in a mounting hole at the top of a circuit breaker and is provided with at least one plug-in port; a control panel is arranged in the circuit breaker shell, the female header connector is arranged on the control panel and arranged opposite to the null line combination hub up and down, and the null line pin header is connected between the null line combination hub and the female header connector in a pluggable mode. The structural design is simple and stable, reliable connection can be kept in different environments, meanwhile, maintenance and replacement are convenient, a traditional flexible connection mode is avoided, perpendicularity of the pin header is high, the pin header has good electrical performance and mechanical performance, the installation structure is simplified, zero line connection is convenient, installation efficiency is improved, and cost is reduced. The setting cost is reduced.

The utility model discloses a textile coating scraper placing rack which comprises a placing rack body, a moisture removing structure and a scraper, and the moisture removing structure is arranged in the placing rack body. The placing rack comprises an outer frame and a cutter clamping mesh; the dehumidification structure comprises a storage bin formed in the bottom of the interior of the outer frame, the storage bin is filled with heat conduction liquid, heating rods are fixedly connected to the two sides of the inner wall of the storage bin, and a plurality of heat exchange holes which are evenly distributed and communicate with the storage bin are formed in the bottom of the inner wall of the outer frame. And a semiconductor chilling plate is fixedly connected to the interior of the heat exchange hole. Air in the outer frame is dried through hot air, erosion damage of moisture to scrapers can be avoided, safety of the scrapers is guaranteed, and compared with an existing textile coating scraper containing frame without the moisture removing function, the textile coating scraper containing frame has the advantages of moisture removing and convenient to use by people.