177results about How to "Avoid danger" patented technology

This invention discloses a capture device for unmanned underwater vehicles (UUVs), comprising a submersible fixed by a mounting frame. The mounting frame is symmetrically mounted with a grasping mechanism for capturing the UUV via a base. The grasping mechanism includes a drive arm driven by the base, with the other end of the drive arm rotatably connected to four corner support frames. The four corner support frames are driven by connecting arms to contact claws for gripping. A groove is provided on the side of the drive arm near the base, and a servo motor is mounted on the base. The servo motor is connected to a gear at one end of a limiting link, transmitting power through the other end of the limiting link to the groove on the drive arm to achieve the movement of the grasping mechanism. This invention also discloses a method for launching and recovering UUVs in conjunction with the above-mentioned launch and recovery device. This invention simplifies precise hook docking operations in high sea states, reduces the dependence of UUVs on computing power during launch and recovery, and improves the automation level of the launch and recovery process.

The utility model discloses a cyclone type chlorine dioxide generator, including generator body, the bottom of generator body is provided with raw material adding opening, and raw material adding opening out installs liquid inlet structure, the liquid inlet structure includes for inner tube and the outer tube of setting in the outer portion of inner tube, the upper end of inner tube is closed, and the lateral wall on inner tube is equipped with liquid inlet hole, and the lower end of inner tube is used for adding hydrochloric acid, the lower end of outer tube is closed, and the lateral wall on outer tube is vertically installed with liquid adding pipe, and liquid adding pipe is used for adding sodium chlorite, and the upper end of outer tube is linked with raw material adding opening. The utility model can make the reaction raw material in the joining place of reactor and the reaction zone subarea realize raw material's quick double full mixing, improve the reaction rate, make the reaction more fully, can provide sufficient diffusion space for the reaction liquid of heated expansion simultaneously, control the residence time of reaction liquid in generator, reduce the production of byproduct such as sodium chlorate, improve the conversion rate of sodium chlorite, guarantee the high yield of ClO2.

The application provides a guide and breathing system for a bronchofibroscope, which comprises a cover body used for covering a throat and forming a closed cover cavity communicating with a trachea in use, and a pipeline structure fixedly connected with the cover body and comprising an endoscope pipeline and a ventilation pipeline which are independent of each other and communicate with the cover cavity, and a drainage pipeline arranged to pass through the inside of the cover body but not communicate with the cover cavity, so as to communicate with an esophagus through a drainage outlet on the cover body in use. When the guide and breathing system is used, the reflux of secretions of a patient during an endoscope operation can be disposed through the independent drainage pipeline, and the bronchofibroscope only occupies part of the space in the laryngeal mask channel in the case of the endoscope operation, so that the patient can inhale sufficient oxygen, and the safety of the patient during the operation of the bronchofibroscope is ensured.

The invention discloses a parking lot ramp exit control method and system based on a limited transverse visible range, and the method comprises the steps: sensing the geometric features of a road in real time, dynamically recognizing whether a vehicle enters a ramp exit control region with the limited transverse visible range, determining the key distance of the vehicle in the transverse direction in real time if the vehicle enters the ramp exit control region, and carrying out the control of the ramp exit. The vehicle passing state is preset, the key distance is compared with the vehicle safety braking distance, the current vehicle passing state is obtained, and according to the current vehicle passing state, a hierarchical control strategy is carried out on vehicle driving behaviors. According to the method, a hierarchical control strategy is implemented on vehicle driving behaviors at a parking lot ramp exit with a limited transverse visible range, and the vehicle passing safety is still ensured under the condition of incomplete perception.

The utility model discloses an electrical arrangement structure, comprising a cabinet body, the top of the inner wall of the cabinet body is fixedly connected with a load isolation switch, the inner wall of the cabinet body is fixedly connected with a cross rod, the front end of the cross rod is fixedly connected with a plurality of Schneider circuit breakers, and the inner wall of the cabinet body is fixedly connected with a plurality of mounting seats. The two mounting bases on the upper side are jointly and fixedly connected with a plurality of Schneider contactors, the side wall of the cabinet body is fixedly connected with a flat-head fuse, and the two mounting bases in the middle are jointly provided with a current transformer. According to the utility model, through cooperation of the exhaust fan and the dustproof net, air flow can be accelerated, dust in the air can be filtered and intercepted, heat dissipation of electrical elements can be realized, through arrangement of a plurality of electrical elements, various parameters in a circuit can be monitored, and circuit protection can be carried out for abnormal conditions to avoid dangers.

The utility model relates to the technical field of automobile lamps, in particular to an irradiation-adjustable LED automobile lamp which comprises an automobile lamp shell, a lampshade body arranged on the automobile lamp shell, a mounting plate arranged in the automobile lamp shell and an LED lamp body, a bearing plate is arranged on the mounting plate, an arc-shaped groove is formed in the bearing plate, and the LED lamp body is arranged in the arc-shaped groove. A driving plate of an arc-shaped structure is slidably arranged in the arc-shaped groove, the LED lamp body is arranged on the upper surface of the driving plate, a rack and a driving assembly meshed with the rack are arranged on the rear end face of the driving plate, a guiding follow-up assembly is arranged on the front end face of the driving plate, and the driving assembly drives the driving plate to reciprocate along the arc-shaped groove. The irradiation area of the automobile lamp can be adjusted, the visual area of a driver is enlarged under some special road conditions, and danger is prevented.

The utility model relates to the technical field of hydrogen energy sources, in particular to a 70MPa hydrogen integrated two-stage pressure reduction control device which comprises a valve body, and a gas inlet channel, a high-pressure channel, a first-stage pressure reduction channel, a second-stage pressure reduction cavity and a gas outlet channel are formed in the valve body. The electromagnetic valve is arranged on the side of the valve body, an inlet of the electromagnetic valve communicates with the air inlet channel, and an outlet communicates with the high-pressure channel; the first-stage piston type pressure reducing mechanism is arranged on the valve body, an inlet of the first-stage piston type pressure reducing mechanism communicates with the high-pressure channel, and an outlet communicates with the first-stage pressure reducing channel; the second-stage diaphragm type pressure reducing mechanism is arranged at the top of the valve body, the outlet end of the second-stage diaphragm type pressure reducing mechanism is communicated with the second-stage pressure reducing cavity and can input pressure-reduced gas into the second-stage pressure reducing cavity, and the inlet end of the second-stage diaphragm type pressure reducing mechanism is communicated with the first-stage pressure reducing channel; and the second-stage pressure reducing cavity is connected with the air outlet channel. By means of the unique two-stage pressure reduction structural design, stable pressure reduction output of 70 Mpa hydrogen can be effectively achieved, and the structure is stable and compact.

The invention relates to the technical field of logistics package identification, in particular to an intelligent volume identification and early warning method for logistics packages. The method comprises the following steps: S1, parcel collection; s2, wrapping pretreatment; s3, parcel type judgment; and S4, fusing the volume and the weight. A point cloud model is generated in a non-contact 3D visual scanning mode, a rapid mode is directly entered for calculating the volume of a regular hard package, an accurate mode is entered for an irregular or flexible package, the real occupied volume of the package is obtained through a concave package voxelization algorithm, and the real occupied volume of the package is calculated by judging the density of the package. On one hand, false parcels and dangerous articles in the parcels can be effectively screened and early warned, dangerous transportation and transport capacity waste are avoided, on the other hand, the distribution condition of the parcels in the compartment is correspondingly adjusted through the density, and the maximum carrying vehicle volume and the load utilization rate are facilitated.

The invention discloses a flushing system anomaly detection method, device and system for medical equipment, and belongs to the technical field of medical equipment. The medical equipment is provided with a flushing channel, the method comprises the steps that first detection information and second detection information corresponding to the flushing channel are obtained, the first detection information represents the flushing pressure change condition of the flushing channel within the target duration, and the second detection information comprises at least one of the second detection information and fluid temperature information; the second detection information represents the bubble generation condition in the flushing channel, and the fluid temperature information represents the temperature change condition of fluid in the flushing channel; and according to the first detection information and the second detection information, abnormal alarm information corresponding to the flushing channel is output, and the abnormal alarm information indicates at least one of an abnormal position in the flushing channel and an abnormal state corresponding to the abnormal position. By means of the method, the abnormity in the flushing channel can be accurately detected.

The auxiliary material metering and feeding device comprises a bottom plate, two supporting legs are symmetrically assembled at the lower end of the bottom plate, a dumping structure is fixedly connected with the bottom end of the side wall of a feeding barrel, a feeding groove is fixedly assembled at the upper end of the side wall of the feeding barrel, and when feeding measurement needs to be conducted, a lifting structure does not work, and the lifting structure does not work; when metering is completed and feeding is needed, the lifting structure clamps and lifts the straight shaft at the side end of the feeding barrel, the straight shaft drives the feeding barrel to be lifted at the moment, meanwhile, the pouring structure is matched, the lower end of one side of the feeding barrel is lifted and poured, and the straight shaft rotates on the inner wall of the lifting structure. The auxiliary materials are accurately added into the reaction kettle through the feeding groove, time and labor are saved, operation is easy and convenient, meanwhile, feeding bucket displacement and dumping adjustment are conducted in a small range, the use safety of equipment can be effectively guaranteed, the situation that the bucket body is too high and falls off to cause danger is avoided, use is convenient, and practicability is high.

This utility model relates to the field of valve technology, and in particular to a two-way valve and an explosion-proof valve. The two-way valve provided by this utility model includes a housing and a fixed base forming an air exchange channel, and a first movable member and a second movable member. At least a portion of the first movable member passes through the second movable member and extends into the fixed base. The first movable member is axially movable relative to the second movable member and the fixed base. When the first movable member moves in a first direction, the air outlet channel communicates with a first gap. When the first movable member pushes the second movable member to move in a second direction, the air inlet channel communicates with the first gap. The movement of the first movable member within the air exchange channel forms separate air outlet and air inlet channels, precisely controlling the airflow direction, avoiding turbulence and backflow, improving exhaust efficiency, and adapting to airflow pressure requirements in different directions.

The utility model discloses an electric control wiring harness with cable excess slot, including bottom disc and wiring harness body, wiring harness body fixed mounting is in the bottom disc, and the both sides of wiring harness body are provided with the fixed frame, is provided with a plurality of wiring slots on the fixed frame, still is provided with the fixed plate on the wiring harness body, and the both sides of fixed plate are installed with the rotating shaft, and the dustproof sealing cover for matching sealed wiring slot is rotatably connected to the rotating shaft, is provided with transparent observation window on the dustproof sealing cover, and is provided with cable excess slot on the bottom disc. The application is convenient to store the excess cable, winds the cable into the cable excess slot, makes the wiring more neat, the space utilization more reasonable, avoids the disorderly accumulation of cable, prevents the danger of cable suspension suspension, reduces the insulation layer breakage or the wire loosening condition of cable to appear because of bending, extrusion, promotes the reliability and safety of the wire connection. Can effectively prevent dust and moisture from entering, keep the wiring point dry and clean, prolong the service life.

The utility model discloses a kind of piece type wind power tower cylinder overhauling device, belong to wind power technology field, including support platform, support platform two sides are provided with several support rotating components, several support rotating components are loaded with wind power tower cylinder, support platform two sides are provided with limit component, support platform is provided with moving platform, and overhauling component is slidably connected on moving platform, personnel is convenient to enter and carries out overhauling operation to wind power tower cylinder inner wall, carries out overhauling operation to internal connecting place, it is easy to operate, and wind power tower cylinder is effectively limited when personnel overhauls inner wall, avoid its deflection, guarantee the security of overhauling.

The application discloses a kind of high-temperature combustion atmosphere under packed bed structure multivariate detection system and method, gas supply system, porous medium combustion unit, real-time monitoring system sequentially connect, the top of porous medium combustion unit is provided with high-temperature flue gas collection pipe, high-temperature flue gas collection pipe is connected product recovery chamber, product analyzer in turn;Real-time detection system includes temperature monitoring system and shape filler topography monitoring system;Detection rod is used to detect temperature abnormal area and the temperature and topography condition of different height cross section in combustion unit interior.This application uses thermocouple and high-speed camera to monitor temperature and outer filler crushing and discoloration condition in real time, detects the local temperature and topography state of inner filler that cannot be directly observed by detection rod, records overall damage and discoloration degree, quantitatively judges whether damage affects combustion.The health status of detection packed bed is helpful to the efficient use of low calorific value fuel, reduces pollutant emission, avoids resource waste.

The utility model discloses a transformer hoisting device mainly relates to the power station equipment installation technical field. Including the beam, the both ends of beam top side are equipped with the upper lifting hole respectively, the upper lifting hole is hung with the lifting cable, the both ends of beam bottom side are equipped with the lower lifting hole respectively, the lower lifting hole is hung with the lifting belt or the lifting cable, the both ends of beam are equipped with the length direction same direction extension's rebates respectively, the rebates are hinged with the swing arm, the inner end of swing arm is located in the rebates and the outer end of swing arm exceeds the both ends of beam, the outer end rotatable mounting of swing arm has the vertical guide pulley of axial, be equipped with the elastic element between swing arm and rebates, the elastic element makes swing arm keep with beam and keep static same direction, and when swing arm swings, the elastic element has the elastic force of making swing arm reset for with beam same direction. The utility model has the beneficial effect at in narrow space to the hoisting path can be in the middle direction, prevents and twists and turns and hangs the partiality.

This invention belongs to the field of organic synthesis technology, specifically relating to a method for preparing 3-hydroxy-2-methylbenzoic acid. The method comprises the following steps: mixing 3-amino-2-methylbenzoic acid, an inorganic acid, a catalyst, and water for hydrolysis to obtain crude 3-hydroxy-2-methylbenzoic acid; extracting the crude 3-hydroxy-2-methylbenzoic acid to obtain an extract phase and a raffinate phase; and sequentially washing and concentrating the extract phase to obtain the 3-hydroxy-2-methylbenzoic acid. The method provided by this invention is simple, generates no waste, and has a relatively simple ammonium salt recovery process, making it a green and environmentally friendly synthesis process. As shown in the example data, the yield of 3-hydroxy-2-methylbenzoic acid synthesized by this invention can reach over 94%, and the purity can reach up to 98%, demonstrating good industrial value.

The invention discloses a momentum wheel mounting structure optimization and verification method suitable for in-orbit vibration source frequency avoidance, and the method comprises the steps: determining whether the momentum wheel generates resonance at a normal working rotating speed or not through the response measurement of the speed increasing process of the momentum wheel under the condition of a free boundary of a whole satellite, and further generating disturbance vibration to other sensors; establishing a system-level whole satellite model containing an assembly or a local simulation model capable of reflecting installation local rigidity, and carrying out modal analysis; the method comprises the following steps: under limited space constraints, carrying out operation efficacy and reinforcement state simulation iteration without disassembling a product, determining a reinforcement mode direction according to a formation, determining specific parameters according to frequency, and carrying out convergence to obtain a lightest, most efficient and operable integrated lightweight reinforcement structure under different momentum wheel mounting positions; and performing reinforcement design to the whole satellite, performing momentum wheel acceleration process response measurement under the condition of the free boundary of the whole satellite, determining the local structure frequency of the reinforced momentum wheel according to the formant occurrence frequency, and determining whether the in-orbit frequency avoidance reinforcement design meets the requirement or not.

The utility model belongs to gear box maintenance technical field especially relates to a hoist device for gear box maintenance, including stand and the ground bolt connected in stand bottom, the top of stand is connected with truss, the side of truss is connected with connecting frame, and the bottom of connecting frame is provided with maintenance box, and the inside of maintenance box is provided with adjusting mechanism, and the side of maintenance box is connected with positioning mechanism, and adjusting mechanism includes slide rail, sliding block, limit block, bearing plate, carousel, positioning hole, connecting rod and positioning column. The hoist device for gear box maintenance, through control switch control self -locking hook elevatrix, adjust to appropriate height, pull the connecting column to the both sides and drive telescopic link to elongate, then pull the magnetic lifting plate to the both sides, make the magnetic lifting plate enter the inside of the sliding slot, make the magnetic lifting plate adsorb in the inner wall of the sliding slot, thereby fix the maintenance box, prevent the maintenance box from happening to shake and rotate in the maintenance process, cause the danger to the staff around.

The utility model discloses a novel old age health care nursing supplementary walking aid device relates to supplementary walking aid technical field, including installation frame, still including support frame, set up on installation frame with fixed connection with installation frame, diversion board, set up on support frame with fixed connection with support frame, first wheel have two, and two first wheel set up on installation frame with rotation connection with installation frame, second wheel have two, and two second wheel set up on installation frame, control switch, set up on support frame, lifting mechanism, set up on support frame, fixed mechanism, set up on support frame and installation frame. The device can adjust the handrail height of the device through the setting lifting mechanism, make the device can be suitable for more users, and the handrail adjusted according to the height of self is also more comfortable in use.

This utility model belongs to the field of bridge construction, specifically an automatic traveling basket for bridge construction, including a bridge base, on which the basket body is mounted; multiple fixing blocks are fixedly connected to the surface of the bridge base; the fixing blocks are located on both sides of the basket body; a motor is fixedly connected to the side wall of the fixing block; a threaded rod is fixedly connected to the output end of the motor; the threaded rod is rotatably connected to the fixing block; a first wind deflector is threadedly connected to the threaded rod; a pair of square holes are opened on the surface of the first wind deflector; louvered guide fans are fixedly connected in the square holes; multiple louvered guide fans are arranged; the louvered guide fans are inclined; thus, the first wind deflector blocks the airflow, preventing the airflow from blowing towards the sliding point between the basket body and the guide rail, thereby avoiding the danger caused by the swaying of the basket body due to the influence of airflow, and the movable nature of the first wind deflector ensures protection when the basket body moves.

The utility model discloses a kind of electric hoist online change-out devices for loop track, it includes: connecting fixed beam, front stopper, angle steel guide rail, upper fixer, guide rail support beam, V-shaped roller, rail car frame, front rail, rotating shaft, cylinder, cylinder tailstock, rear rail, rear stopper and conveying guide rail;The both ends of the connecting fixed beam are respectively welded in the both ends of guide rail support beam.The utility model increases rail changing mechanism on the original loop track basis, and damaged electric hoist can be changed out while producing, to avoid downtime, ensure production output.It is simple and detailed in structure, can be reformed to completed rail changing equipment, greatly reduce the cost of reformation, at the same time, avoid the inaccuracy of guide rail alignment caused by reformation or manufacturing, and cause hoist to be not smooth, device is set in loop track electric hoist empty load section to avoid unstable structure due to load, at the same time, electric hoist is no load in empty load section, avoid danger when maintaining.

The application discloses an electrostatic chuck system and a semiconductor processing device. The electrostatic chuck system comprises: an electrostatic chuck capable of moving up and down relative to the bottom wall of a reaction chamber, and a radio frequency power source and a direct current power source connected with the electrostatic chuck respectively, and the electrostatic chuck and the radio frequency power source and the direct current power source form a radio frequency channel and a direct current channel respectively; a first radio frequency blocking part and a second radio frequency blocking part connected with each other; the first radio frequency blocking part is located on the direct current channel and is arranged on the electrostatic chuck and moves up and down with the electrostatic chuck relative to the bottom wall of the reaction chamber, and the first radio frequency blocking part is used for limiting the radio frequency current in the radio frequency channel from being coupled to the direct current channel; the second radio frequency blocking part is arranged at an opening on the bottom wall of the reaction chamber, and the opening is used for connecting the direct current channel with the direct current power source; and the second radio frequency blocking part is used for preventing the radio frequency current from leaking to the outside of the reaction chamber through the opening.

This invention relates to the field of building canopy technology. To address the lack of interception capabilities for falling objects from heights in existing building canopies, this invention discloses a building buffer canopy designed to prevent such incidents. The canopy includes a roof panel, with a mounting housing at one end. An inclined buffer plate is movably mounted on the side of the mounting housing near the roof panel. In use, when a falling object lands on the buffer plate, the buffer airbag is compressed and deformed. Air from the buffer airbag is then transported via a connecting pipe to a blocking airbag. The inflated blocking airbag extends from the mounting housing and blocks the side of the buffer plate, preventing the falling object from sliding off and causing danger. Simultaneously, an alarm sounds, alerting people to stay away from the area around the roof panel and prompting staff to promptly check and remove any falling objects intercepted by the blocking airbag on top of the buffer plate, thus enhancing safety.

This application discloses a safety platform for a friction press, comprising: a press body, which includes a base, a flywheel, and a friction disc. The flywheel is rotatably mounted on the top of the base, and the friction discs are rotatably mounted on both sides of the flywheel. The friction discs are connected to the flywheel and are connected to the pulley of a motor via a belt; a support platform, which is located around the base and below the flywheel, and is fixed to the ground by columns; a fence, which surrounds the support platform; and a protective frame, which is mounted on the support platform and is used to cover the belt and motor. The friction press safety platform described in this application not only reduces the risk of falls from heights and avoids dangers caused by falling screws, nuts, washers, etc., but also effectively prevents the high-speed rotating pulley from falling in the event of a broken motor shaft, thus improving safety and reliability.

The utility model provides a high-temperature-resistant wide-mouth bottle, which relates to the technical field of wide-mouth bottles, and comprises a bottle body and a reinforcing assembly arranged on the inner side of the bottle body, the reinforcing assembly comprises a pressure-resistant assembly arranged on the peripheral side of the bottle body and a pressure relief assembly arranged on the outer side of the end part of the bottle body, the pressure-resistant assembly is used for improving the high-temperature resistance of the bottle body, corrosion of high-temperature objects or liquid to the device can be effectively resisted through the first composite layer, the second composite layer and the third composite layer, the service life of the device is prolonged, compared with a container made of a traditional material, the applicability in the high-temperature and strong-corrosion environment is greatly improved, and the use is convenient. The heat insulation design of the second composite layer remarkably reduces heat loss, keeps the high-temperature environment in the bottle stable, and reduces energy consumption.

The utility model relates to the technical field of medical auxiliary equipment, in particular to a test tube rack, which comprises a test tube rack body, a plurality of guide rails and a plurality of test tubes, the multiple groups of self-tightening clamping assemblies are arranged in the multiple cavities in a one-to-one correspondence mode, each group of self-tightening clamping assembly comprises a base, the base is movably installed in the cavity and can move in the extending direction of the cavity, a groove is formed in the base, and the base is connected with the test tube rack body through a first elastic piece; the first plate body is movably installed on the guide rail, the first plate body can move in the direction of the guide rail, and the first plate body is connected with the cavity through a second elastic piece; the two ends of the first rod body are hinged to the first plate body and the base respectively; and the second plate body is movably installed on the guide rail, the second plate body can move in the direction of the guide rail, and the second guide rail is connected with the cavity through a third elastic piece.

A steel strip traction mechanism relates to the technical field of steel strip production equipment. It includes a steel strip discharge conveying platform, with track platforms on both sides. Longitudinal tracks are fixedly mounted on the track platforms, and a gantry frame is positioned between the longitudinal tracks. A moving beam is mounted on the front of the gantry frame, and a lifting drive mechanism is installed on the gantry frame to drive the moving beam up and down. A transverse slide rail is mounted on the moving beam, and a sliding plate is slidably mounted on the transverse slide rail. A transverse displacement drive mechanism is also mounted on the moving beam to drive the sliding plate to move left and right along the slide rail. A steel strip active clamping roller and a steel strip driven clamping roller are rotatably mounted on the sliding plate. The steel strip traction mechanism also includes a cooling system. This invention, through its traction mechanism, can replace manual labor in guiding the end of the steel strip to the output roller, effectively improving work efficiency and overcoming the dangers associated with manually guiding the end of the steel strip to the output roller using clamps in existing technologies.

The application discloses a movable safety cover plate for aluminum alloy supporting formwork for hoisting laminated slab, which comprises a cover plate outer frame arranged on the side of the top laminated slab of the supporting formwork, a moving assembly arranged at the bottom of the cover plate outer frame and used for moving the cover plate outer frame on the supporting formwork, an energy supply assembly arranged at the top of the cover plate outer frame and used for supplying energy to the moving assembly, and a fixing assembly arranged on the cover plate outer frame and used for fixing the cover plate outer frame on the supporting formwork. The cover plate is moved on the supporting formwork through the rotation of the plurality of rollers, so that when the plurality of laminated slabs are arranged at different positions of the supporting formwork, the cover plate can be moved to a suitable position along with the laminated slabs, the hollow part of the supporting formwork without the laminated slabs is blocked, the danger of the construction personnel in the hoisting and positioning process of the laminated slabs is prevented, and the safety hidden danger is reduced. The rotation of the rollers is powered by the solar cell panel, and the setting of the tempered glass can prevent the solar cell panel from being damaged due to the treading of the construction personnel.

The utility model discloses a cleaning device for a sulfuric acid storage tank, which belongs to the technical field of cleaning of the sulfuric acid storage tank and comprises a foundation plate, the sulfuric acid storage tank is fixedly connected onto the foundation plate, one side of the sulfuric acid storage tank is respectively provided with a first circulating pipe orifice and a second circulating pipe orifice, and a mixing, stirring and impurity removing mechanism is arranged in the sulfuric acid storage tank. According to the utility model, the planetary gear set is arranged, through the matching of the main gear and the auxiliary gear, the stirring blades can be driven to ensure that the neutralization reaction is sufficient, and the arc-shaped scraping plate and the matched scraping plate can be driven, so that the side wall and the inner bottom of the sulfuric acid storage tank can be cleaned; the concentration of the alkali washing liquid in the alkali washing tank can be determined by detecting the reaction temperature in the sulfuric acid storage tank, and when the concentration of the alkali washing liquid is too high and the temperature in the sulfuric acid storage tank is too high, the electromagnetic valve can be opened, so that water is added into the alkali washing tank for dilution, the reaction rate is reduced, and dangers are avoided.