207 results about "Lead plate" patented technology

The invention discloses multifunctional battery cell comprehensive detection and treatment integrated equipment, and aims to realize full-process automatic treatment of a battery cell from electrical performance test to internal defect detection. The equipment comprises a lead plate shell, a multifunctional battery cell detection module and a battery cell Xray detection and sorting module. The multifunctional module completes IV / OCV testing, tab shaping, cutting and size measurement in sequence through the first rotating disc mechanism, and it is ensured that the physical and electrical performance of a battery cell reaches the standard; and the Xray module carries the double Xray detection mechanisms through the second rotary table mechanism, penetrating imaging is conducted on key areas at the head and the tail of the battery cell, and high-speed sorting of good products and defective products is achieved in combination with the double-head rotary discharging mechanical arm and the NG sorting four-axis mechanical arm. The multi-shielding design of the lead plate shell and the NG sorting frame ensures radiation safety, and the modular structure supports compatibility of multi-specification battery cells. Through cooperative control of the turntable, the robot and the sensor, the detection efficiency and precision are remarkably improved.

The invention provides an automatic positioning and shearing control system and method for lead plate machining, and relates to the technical field of lead plate shearing, and the system comprises a feeding module, a flattening module, a sensor module, an image recognition module, a control module, a cutting module and a discharging module. All links are precisely coordinated and linked through an intelligent control module, the production efficiency and the machining precision are greatly improved, manual intervention and personal errors are reduced, meanwhile, the labor intensity and the safety risk are reduced, and through real-time monitoring and feedback control of various sensors and combination of the advanced image recognition technology, the production efficiency is improved. Parameters such as the flattening gap, the pressure, the heating temperature, the cutting path and the cutting speed of the lead plate can be accurately adjusted and controlled, it is ensured that each lead plate can achieve the ideal flattening effect and the ideal cutting precision, and the high-quality production requirement is met.

The invention relates to the technical field of radiation protection equipment, and provides a multi-scale self-adaptive fixing system for a lead plate, in the aspect of lead plate fixing, through a three-degree-of-freedom structure and a precise force control system of a shape memory alloy driving clamp, the clamping angle and force can be adjusted in a self-adaptive manner, the plastic deformation of the lead plate is effectively avoided, and the service life of the lead plate is prolonged. The problem that a traditional clamp is poor in fixing precision is solved. And due to the innovative structure of the modular quick connection assembly, the assembly and the disassembly are convenient, the seam leakage rate is greatly reduced, and the radiation protection performance is improved. In terms of environmental adaptation, the temperature and humidity cooperative control system can accurately adjust the temperature of the lead plate, and the self-repairing nano ceramic anti-corrosion coating can effectively isolate corrosion ions and automatically repair the coating. The intelligent monitoring and early warning system utilizes a multi-dimensional sensor, edge calculation and digital twinning technology to monitor the state of equipment in real time, quickly diagnose faults and perform graded early warning, so that the safe and stable operation of the system is guaranteed, and the reliability and the intelligent level of the equipment are greatly improved.

The invention provides an anode coating electrolyte and application thereof in an aluminum alloy metallographic test method. The anode coating electrolyte comprises hydrofluoric acid, hydrochloric acid, nitric acid, fluoboric acid and distilled water; wherein the volume ratio of distilled water to hydrofluoric acid to hydrochloric acid to nitric acid to fluoboric acid is 200: (1-3): (2-5): (4-6): (8-12); the aluminum alloy metallographic testing method comprises the following steps: (1) carrying out coarse grinding, polishing and fine grinding on an aluminum alloy sample to obtain a pretreated aluminum alloy sample; (2) a lead plate serves as a cathode, the pretreated aluminum alloy sample is immersed in the anode film coating electrolyte and connected with an anode of a direct-current anode film coating machine, and film coating is completed under the constant film coating current; and (3) carrying out metallographic testing on the coated aluminum alloy sample by using a metallographic microscope. According to the method, the combination of the acidic corrosive liquid conforming to grain observation and the fluoboric acid is selected, so that the time consumption and the treatment voltage for treating the sample are reduced, and the aluminum alloy sample subjected to anode film coating is clear and complete in grain boundary, high in repeatability and obvious in contrast.

The utility model provides a portable special device for processing a lead plate. According to the device, a lead plate to be machined is clamped and fixed through the fixing mechanism, the X-axis motor and the Y-axis motor drive the X-axis lead screw or the Y-axis lead screw to be matched with the lead screw motor sliding table module to drive the cutting mechanism to move to conduct field cutting machining on the lead plate to be machined, and the technical problem of field machining and finishing of the lead plate is solved. The whole device is light and convenient to move, the laser pen is used for assisting scribing and positioning measurement, the cutting mechanism is driven to move accurately in the X-axis direction, the Y-axis direction and the Z-axis direction in cooperation with the X-axis advancing mechanism, the Y-axis advancing mechanism and the Z-axis advancing mechanism, and machining precision is guaranteed; and a collecting mechanism is further arranged, so that the cleanliness and safety of the working environment can be guaranteed. The lead plate machining device is used for machining the lead plate on the operation site, construction difficulty can be reduced, construction efficiency can be improved, construction environment pollution can be reduced, small-amount finish machining of the lead plate on the construction operation site is achieved, and the lead plate machining device is suitable for being used as a portable lead plate machining special device.

The utility model provides an aluminum sheet surface phosphoric acid anodizing treatment device for a single-lap tensile shear test of an adhesive film, which comprises a reaction tank filled with phosphoric acid electrolyte; the aluminum sheet is arranged at one end in the reaction tank in a hanging manner and is connected with the positive electrode of the power supply; the lead plate is arranged at the other end in the reaction tank in a hanging manner and is connected with the negative electrode of the power supply; the heater is arranged in the reaction tank and is used for heating the phosphoric acid electrolyte; the areas of the lead plate and the aluminum sheet immersed in the phosphoric acid electrolyte are set as S1 and S2 respectively; the range of S1 to S2 is 1: 1-1: 10. By designing the special aluminum sheet surface phosphoric acid anodizing treatment device, instant and small-batch phosphoric acid anodizing treatment on aluminum sheets in a laboratory environment is realized, and the problem that the existing industrial batch production mode is difficult to meet small-scale and high-frequency flexible requirements is solved; and the rapid verification requirement on a small amount and multiple batches of samples in the adhesive film research and development stage is met.

The invention discloses an irradiation-resistant displacement sensor, and belongs to the technical field of sensor measurement. The radiation-resistant displacement sensor comprises a front-end device, an electric connector, a sensor probe, a signal processing module, a shell, a capsule corrugated pipe, a detection plate and a radiation-proof assembly, the radiation-proof assembly comprises a lead sealing shell, a lead cover plate, a lead protection layer and a lead plate, and the lead sealing shell and the lead cover plate are installed on the inner side of the shell to surround the front-end device. A lead protection layer is arranged around the outer side of the capsule corrugated pipe, and a lead plate is arranged on the side, away from the sensor probe, of the detection plate so as to protect the periphery and the bottom of the sensor probe from being irradiated. According to the radiation-resistant displacement sensor, interference of external radiation to signals and damage to electronic components in the front-end device are effectively prevented, the radiation-resistant displacement sensor can work in a radiation environment, meanwhile, the radiation-resistant displacement sensor has the functions of water resistance, oil resistance and the like, and the service life of the sensor is prolonged.

A battery pack includes a left holder. The left holder includes a resin portion molded from resin and a plurality of lead plates held by the resin portion. The plurality of lead plates includes a first lead plate connected to a terminal of a first battery cell and a second lead plate connected to a terminal of another battery cell. In the resin portion, a through hole penetrating the resin portion in a left-right direction is formed. The through hole is located between outer edges of the two lead plates.

The utility model relates to the technical field of radiation shielding, and particularly relates to a shielding slide rail structure of a transverse moving type radiation protection door and window, which comprises a bottom rail, a door body, and a plurality of rollers fixed to the two sides of the bottom surface of the door body. The bottom rail comprises a rail body and lead plates fixed to the two sides of the rail body, and the rail body has an upwardly protruding fitting strip. The two side walls of the fitting strip and the lead plates form a wheel groove. The lower edge of the door body has a recessed fitting groove in the middle part. The fitting strip partially extends into the fitting groove. The rollers extend into the wheel groove and enable the door body to slide along the length direction of the bottom rail. The utility model forms a multi-stage sealing characteristic of mutual alignment and cooperation between the door body and the bottom rail through the cooperation of the lead plates, the wheel groove, the fitting strip and the fitting groove. The radiation leakage prevention capability of the door gap edge is greatly improved, and the radiation leakage is effectively prevented. The utility model provides more reliable radiation protection for the use place.

The utility model belongs to the technical field of electronic component welding, particularly relates to a welding device for electronic component production, and aims to solve the problems that the quality is influenced by floating residues on the surface of welding flux and a circuit board is thermally deformed in the prior art. A preheating frame is welded to the outer wall of one side of the lead-tin solder pool, and heating rods distributed at equal intervals are installed on the inner wall of the preheating frame. According to the utility model, the preheating frame is arranged on one side of the lead-tin solder pool, after the template is placed on the positioning block, the heating rod in the preheating frame can heat the circuit board, and before dip soldering, pre-soldering preheating can be carried out firstly, so that bridge area deformation of the circuit board caused by heating can be avoided, and the problem of circuit board deformation can be solved; the automatic tin removing structure is arranged on the lead-tin solder pool, the lead scraping plate can be controlled to move by driving the connecting rod to move through the electric guide rail, dross on the surface of solder can be scraped, cleaning is convenient, and the quality of solder joints can be improved.

The present disclosure relates to bitter plate-based magnet devices and a reactor apparatus using same. The reactor apparatus may comprise the magnet devices. The magnet device may comprise: an upper lead plate; a plurality of conductor plates; a plurality of insulator plates; and a lower lead plate. The magnet device can be formed to have a central hole. The conductor plates and the insulator plates can be stacked such that each insulator plate is disposed between two conductor plates. Each conductor plate can be formed to have a radial slot, and each insulator plate can be formed to have a radial slot that is wider in width in the circumferential direction than the radial slot of the conductor plate. According to the present disclosure, a bitter plate-based reactor apparatus is implemented such that high current density can be achieved and a miniaturized reactor can be fabricated.

The utility model discloses an anti-radiation fireproof door, and particularly relates to the technical field of fireproof doors, the anti-radiation fireproof door comprises a door frame, the inner wall of the door frame is rotatably connected with a door frame, the front side of the door frame is fixedly connected with a handle, a dismounting assembly is arranged in the door frame, an anti-collision assembly is arranged in the door frame, and the dismounting assembly comprises two worms; the two worms are arranged up and down with the center of the door frame as the symmetry point, and the outer surfaces of the left sides and the right sides of the worms are rotationally connected with the inner wall of the door frame. According to the anti-radiation fireproof door, by arranging the dismounting assembly, specifically, the mounting plate is taken down firstly, two rotating blocks are rotated anticlockwise to drive two worms to rotate in the inner wall of the door frame, when the worms rotate anticlockwise, a limiting plate can be driven to move, and when limitation on a lead plate can be relieved, the lead plate can be directly taken down to be replaced; the whole door body does not need to be replaced, the maintenance cost of the device is reduced, and waste of steel, flame-retardant materials and other resources cannot be caused due to the fact that the lead plate can be detached independently.

The utility model discloses an adjustable lead assembly capable of fast connection and an electronic element thereof, the adjustable lead assembly comprises a lead plate, one end of the lead plate is connected to the electronic element, a pin is in contact connection with the other end of the lead plate, a locking clamping assembly is arranged at the outer side of the contact connection part of the lead plate and the pin, and the locking clamping assembly is arranged at the outer side of the contact connection part of the lead plate and the pin. The electronic component lead assembly is provided with the lead plate, the pins and the locking and clamping assembly, the length of the electronic component lead assembly is convenient to adjust, and the lead plate and the pins are locked and fixed through the locking and clamping assembly, so that the connection stability and reliability of the lead plate and the pins are improved.

The utility model discloses a closed-loop heating device of an atmosphere furnace, which belongs to the technical field of atmosphere furnace heating and is characterized by comprising a base flange, a base shielding layer assembly, a ceramic base plate, a lower base plate electrode assembly, an upper base plate electrode assembly and a molybdenum heating plate, after electrification, current is transmitted to the electrode bar through the electrode lead-out plate, conducted to the copper connecting plate through the electrode bar, then transmitted to the heating belt connecting block through the connecting plate bottom flange and further transmitted to the molybdenum heating disc to achieve heating, the lower base plate electrode assemblies and the upper base plate electrode assemblies are arranged on the two sides, and closed-loop heating is achieved. By the adoption of the technical scheme, the needed high-temperature heating effect can be achieved, and disassembly, assembly, operation and use are convenient.

The utility model discloses an anti-radiation pressure relief gas fire extinguishing door structure which comprises a door frame and a door body, the door body comprises a main frame, an anti-radiation lead plate is arranged on one side of the main frame and on the outer side of the door frame, and an outer protection steel plate covers the outer surface of the anti-radiation lead plate. An inner protection steel plate is arranged on the other side of the main frame and on the inner side of the door frame; a pressure relief frame is arranged at the lower end of the interior of the door body, a limiting frame is arranged on the inner side of the pressure relief frame, a movable pressure relief plate is arranged between the pressure relief frame and the limiting frame, a reset spring is arranged between the movable pressure relief plate and the pressure relief frame, a movable pressure relief groove is vertically formed in the movable pressure relief plate, and the movable pressure relief groove and the limiting frame are arranged in the movable pressure relief groove. Fixed pressure relief grooves are formed in the positions, corresponding to the movable pressure relief grooves, of the interior of the limiting frame, the pressure relief plates can be rapidly opened after being pressed, the pressure relief efficiency is guaranteed under the emergency situation, the fire fighting pressure relief requirement is met, the pressure relief plates are designed in a modularized mode and can be independently replaced, and the operation and maintenance cost is reduced.

This invention relates to a metal plate clamping and rotating device, belonging to the technical field of lifting, assembly, and transfer facilities. The device includes a crossbeam supporting a bidirectional threaded screw and a splined shaft, and a temporary storage platform located below the crossbeam. At least four threaded blocks, each forming a helical pair, are spaced apart on the screw. These threaded blocks and the crossbeam form a horizontal moving pair and support a drive wheel. The central hole of the drive wheel passes through the splined shaft and surrounds a lifting strap that engages with it. Hooks are installed at both ends of the lifting strap to hook onto the upper lifting rings of the lifting lugs. The middle of the lifting lugs is hinged to the end of the lifting beam, and a hook at the lower part of the lifting lugs hooks onto one end of a clamping plate. Elastic limiting posts extending downwards are distributed at intervals along the length of the lifting beam. This invention achieves reliable overall clamping of large-sized lead plates, significantly reducing defects such as lead plate deformation, scratches, and dents. It is adaptable to lead plates of different lengths, has a wide range of applications, and can meet the needs of different lead plate assembly angles, providing convenience and speed.

1. Name of the product in this design: Electric door (lead plate). 2. Application of this design: This design is used for electric doors. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention discloses an installation process of an air pipe penetrating through a protection area. The installation process comprises the following steps that a hole reserving tool is manufactured; main body construction is conducted, specifically, the manufactured hole reserving tool is built at the installation position of the air pipe; and air pipe installation, wherein the air pipe penetrates through the hole reserving tool, and the junction of the air pipe and the hole reserving tool is blocked through a lead sheath. Compared with the prior art, the method has the beneficial effects that the hole reserving tools are manufactured in advance, the hole reserving tools are synchronously installed during main body construction, it is avoided that holes are formed in the wall in the later period, the workload is reduced, the reserved holes are regular, and the appearance quality is good. Lead plate protection is carried out in the hole reserving tool, the construction efficiency is remarkably improved during later air pipe installation, and the protection effect is greatly improved. The hole reserving tool is simple in structure, easy to manufacture and low in cost.

The utility model provides a battery module. In the battery module provided with a light sensor, the detection precision of light generated when a battery fails is improved. A battery module (1) is provided with a lead plate (20) and an optical sensor (40) that are electrically connected to a plurality of batteries (10). The lead plate (20) is provided with: a plate-shaped main body part (21) in which a plurality of through holes (21a) that overlap the terminals (11) of the battery (10) in a planar view are disposed; and a plurality of tab parts (22). The tab section (22) is provided with: a plate-shaped first tab section (23) which is positioned further inward than the peripheral edge of the through-hole (21a) when the main body section (21) is viewed in a planar view, and which is electrically connected to the terminal (11); and a second tab section (24) that electrically connects the first tab section (23) and the main body section (21). The second tab section (24) has a shape protruding from the main body section (21) toward the opposite side from the battery (10) side. The light sensor (40) is located on the opposite side of the main body (21) from the battery (10).

The invention discloses a closed protection type anti-radiation electric sliding door which comprises a power beam fixedly installed on a wall body, a door body hung on the power beam and a closed protection device, and the closed protection device comprises a lifting threshold assembled at the bottom of the door body, an auxiliary rail fixedly arranged on the wall body and a suspension assembly. Lead plates are arranged in the door body and the lifting threshold, an overlapped protection area is formed, the auxiliary rail is provided with a sedimentation groove matched with the closed station, and the suspension assembly and a traction rope form a mechanical linkage mechanism through a lifting hanger, a nylon roller and a traction rope. When the door body is closed, the nylon roller slides into the settlement groove along the auxiliary rail to drive the lifting hanger to sink, and the lifting doorsill is pulled by the traction rope to move downwards relative to the door body to shield the bottom gap; when the door body is opened, the nylon roller is separated from the settlement groove to reset the lifting hanger, and the lifting doorsill is pulled to move upwards to avoid friction interference. The radiation barrier effect is remarkably improved, the operation stability is optimized, and the multi-scene high-grade protection requirements of the medical radiology department, the nuclear industry laboratory and the like are met.

The utility model relates to the technical field of ray detection, and discloses a ray transillumination tool for precision casting parts, which comprises a box seat, a lead screw module is arranged in the box seat, the input end of the lead screw module extends out of the box seat and is fixedly provided with a hand wheel, and the top of the box seat is provided with a rectangular groove. A sliding table of the lead screw module penetrates through the rectangular groove and is fixedly provided with a bottom plate, the upper side of the bottom plate is rotationally provided with a right-angle storage plate through a first rotating base, a calibration mechanism used for adjusting the translation position of the right-angle storage plate is arranged between the box base and the bottom plate, and protractors are fixedly installed at the two ends of the upper side of the bottom plate correspondingly; a positioning mechanism used for adjusting the swing angle of the right-angle storage plate is arranged between the protractor and the right-angle storage plate, and a pair of lead plates is fixedly installed on the upper side of the right-angle storage plate. The device is flexible and adjustable in structure and simple and convenient to operate, effectively solves the problems of complicated operation, low efficiency and poor consistency in the traditional method, and meets the high-standard requirement of radiographic inspection of precision casting parts.

The utility model relates to a bus duct, in particular to a corner-variable elbow bus duct, which comprises a first wire duct and a second wire duct. A first turntable is mounted at one end of the first wire slot; a second turntable rotationally connected with the first turntable is mounted at one end of the second wire slot; a fixing rod rotationally connected with the second rotating disc is mounted on the first rotating disc; the first wire groove and the second wire groove are both provided with wire guide plates. The two groups of lead plates abut against each other; the wire guide plate on the second wire slot is rotationally connected with the fixed rod; a locking structure is arranged between the first wire duct and the second wire duct and can limit rotation of the first wire duct and the second wire duct. An unlocking structure is arranged on the second wire slot, and the unlocking structure can relieve the limiting state of the locking structure and the abutting state between the wire guide plates, so that the second wire slot and the first wire slot can rotate relative to each other; and no friction loss exists between the wire plates in the rotating process, so that the conductive stability of the bus duct is improved, and the hidden danger of electricity utilization is eliminated.

The utility model discloses a lead foil rolling and cutting device which comprises an operation supporting table and an operation table, the operation table is installed at the top of the operation supporting table, an upper rolling wheel and a lower rolling wheel are horizontally erected at one end of the top of the operation table, a handle is vertically installed over the upper rolling wheel, a first rolling machine is erected below the handle, and a second rolling machine is erected below the first rolling machine. And meanwhile, a second sheet grinding machine is arranged on one side of the first sheet grinding machine, gears are symmetrically connected to the two sides of the lower end of the handle in a meshed mode, an inclined connecting plate is connected to the side end of the first sheet grinding machine, and a fixing device is arranged below the first sheet grinding machine. By adjusting the rotating speed of the first sheet grinding machine and the second sheet grinding machine with the rotating speed adjusting function and adjusting the gap between the upper rolling wheel and the lower rolling wheel, a lead plate can automatically and rapidly pass through the inclined connecting plate in sequence to be ground till lead foil with the satisfactory thickness is obtained, and then the lead foil is rapidly cut through the electric cutting machine.

The invention relates to the technical field of pressure vessel vertical type assembly welding and inspection, and particularly discloses a rack device for pressure vessel vertical type assembly welding and inspection and a using method thereof.The device comprises a rack frame, the front wall of the rack frame is provided with an opening, and the side wall and the rear wall of the rack frame are each provided with a lead plate; the supporting device is arranged in the rack frame, and the supporting device is used for providing supporting for the pressure container; walking assemblies are arranged at the top and the bottom of the movable shielding door, and the top of the movable shielding door is arranged at the top of the rack frame through the walking assemblies. The device has the advantages that the pressure vessel can be vertically installed and welded at the original position, and the welding seam is subjected to radiographic inspection.

The present invention relates to the technical field of positive electrode additives for lead-acid batteries, and particularly relates to a method for testing the thin film resistance of positive electrode additives for lead-acid batteries, which includes: (1) taking two lead plates with clean surfaces, and uniformly coating the positive electrode additive to be tested on one side surface of the lead plates in the form of an emulsion; (2) vacuum-drying the coated two lead plates, and keeping the coated surfaces of the lead plates facing upward; (3) after drying, closely fitting the coated surfaces of the two lead plates, distributing and attaching the two test electrodes of the resistance meter to the outer side surfaces of the two lead plates, and reading the resistance after stabilization. The testing method of the present invention simulates the state of the coated lead particles under the use state of the positive electrode additive, can accurately and stably test the conductive performance of different positive electrode additives, provides a basis for comparing the enhancement effects of different positive electrode additives on the electron conduction ability between particles, and selecting suitable positive electrode additives, and has the possibility of being transformed into an enterprise or industry testing specification.

1. Name of the product in this design: Lead wire reel (meaning abundant wealth). 2. Purpose of this design: For storing the fuses of fireworks or firecrackers. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention provides a preparation method of an EBSD sample of an aluminum-plastic composite film, the aluminum-plastic composite film comprises an aluminum foil and polymer films coated on two side surfaces of the aluminum foil, the preparation method of the EBSD sample of the aluminum-plastic composite film comprises the following steps: providing the aluminum-plastic composite film with the width of less than or equal to 10mm and the length of less than or equal to 15mm; taking the aluminum-plastic composite film as a positive electrode and a lead plate as a negative electrode, and performing first electrolysis to obtain a first sample; performing second electrolysis on the first sample in the swinging state to peel off the polymer film to obtain a second sample; and carrying out third electrolysis on the second sample to obtain an EBSD sample of the aluminum-plastic composite film. On the basis of an integrated sample preparation mode, plastic film stripping and aluminum foil surface optimization are achieved at the same time in the electrolysis process, the purposes of simplifying the aluminum plastic film aluminum foil EBSD sample preparation steps and improving the sample quality and the sample preparation efficiency are achieved, and therefore efficient EBSD analysis in material scientific research and industrial detection is remarkably improved.

1. The name of the design product: lead disc (beautiful companion). 2. The use of the design product: lead storage for fireworks or firecrackers. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention relates to the technical field of waste cyclic regeneration, and discloses a regeneration cyclic treatment method of zinc-containing waste acid in a hot galvanizing process, which comprises the following steps: step 1, zinc stripping: adding a zinc stripping additive into the zinc-containing waste acid, the zinc stripping additive being a mixture of a wetting agent and a corrosion inhibitor; step 2, iron removal: adding an iron removal agent into the zinc-containing waste acid after zinc removal, and stirring, wherein the content of iron ions in the waste liquid after the iron removal process is lower than 1g / L; step 3, electrolysis: using insoluble metal materials such as a titanium plate, a lead plate, a graphite plate and a lead alloy plate as an anode plate, and using a zinc plate, an aluminum plate or a stainless steel plate as a cathode plate; and when the concentration of zinc ions in the waste liquid is lower than 60g / L, electrolysis is stopped. And removing metal ions from the electrolyzed waste liquid, recovering the zinc removal capability, and returning to the step 1 to continuously remove the zinc. According to the invention, closed-loop circulation is realized, no wastewater is discharged, the requirement of wastewater treatment is eliminated, and the environmental protection cost is reduced.

The utility model discloses an arc striking mechanism of a plate rolling machine, which relates to the technical field of plate rolling machines and comprises a mounting table, a main machine is arranged on one side of the upper surface of the mounting table, a plate rolling component is arranged on one side of the main machine, and an arc striking component is arranged on one side of the plate rolling component. The arc striking assembly comprises an arc striking plate, one end of the arc striking plate is arranged in the plate rolling assembly, a plurality of connecting bases are fixedly connected to one end and the middle of the lower surface of the arc striking plate, and a plurality of lifting rods and rotating columns are arranged on the lower surface of the arc striking plate. According to the utility model, the run-on plate is arranged to ensure that the rolled plate has no straight edge and can be directly welded with the cylinder, and meanwhile, the run-on plate can be quickly disassembled through the connecting seat and the U-shaped connecting piece, so that the matched run-on plate can be flexibly replaced when the plates with different specifications are processed; and the using effect and practicability of the plate rolling machine are effectively improved.