Intelligent device for automatic dezincification

Abstract

This invention relates to the field of scrap steel resource recovery technology and discloses an intelligent device for automatic dezincification, comprising at least two sets of dezincification tanks, multiple sets of dezincification tanks arranged in series, and adjacent dezincification tanks connected by liquid guide pipes, with a guide pump installed on each set of liquid guide pipes. It also includes dezincification drums matching the number of dezincification tanks, which are installed inside the tanks via limiting parts. This invention uses a drive motor to rotate the limiting rods, utilizing friction to drive the dezincification drums to rotate at low speed, causing the scrap steel to tumble inside and fully contact the solution. Combined with the injection of micro-nano bubbles, the bubbles pass through through holes, creating strong disturbance and air lifting effects, eliminating reaction dead zones and significantly shortening the dezincification time. Simultaneously, the spiral propulsion part and the inclined design of the drum work together to propel the scrap steel axially, achieving multi-stage series processing via a transfer conveyor, ensuring that high-zinc scrap steel is thoroughly dezincified, significantly improving reaction efficiency and resource recovery rate.

Description

Technical Field

[0001] This invention relates to the field of scrap steel resource utilization technology, specifically to an intelligent device for automatic dezincification. Background Technology

[0002] With the rapid development of the steel industry, the resource utilization of galvanized scrap steel has received increasing attention. At present, the dezincification treatment of high zinc content scrap steel mainly adopts pyrolysis or wet leaching processes. Among them, wet dezincification has become a hot topic in industry research due to its advantages such as mild reaction conditions, high zinc recovery rate and good product purity.

[0003] However, existing wet zinc removal technologies and equipment still face many bottlenecks in practical applications: traditional leaching equipment often uses simple stirred tanks or fixed-bed reactors, where scrap steel tends to accumulate during the reaction, leading to insufficient contact between the internal material and the zinc removal solution, creating dead zones in the reaction. This results in slow zinc removal rates, long cycles, and high reagent consumption. Furthermore, each zinc removal tank often operates independently, lacking an effective concentration gradient maintenance mechanism. This leads to insufficient reaction driving force in high-concentration zones and significant reagent waste in low-concentration zones, affecting overall energy efficiency. Therefore, an intelligent system for automated zinc removal is proposed. Summary of the Invention

[0004] This invention provides an intelligent device for automatic dezincification. The drive motor rotates the limit rod, and the friction force drives the dezincification drum to rotate at a low speed, causing the scrap steel to tumble inside and fully contact the solution. Combined with the injection of micro-nano bubbles, the bubbles pass through the through holes to create strong disturbance and air lifting effect, eliminating reaction dead zones and significantly shortening the dezincification time. This solves the problems mentioned in the background art of traditional leaching equipment, where scrap steel tends to accumulate during the reaction process, resulting in insufficient contact between the internal material and the dezincification solution, forming reaction dead zones, leading to slow dezincification reaction rate, long cycle, and large reagent consumption.

[0005] This invention provides the following technical solution: An intelligent device for automatic dezincification includes at least two sets of dezincification tanks, with multiple sets of dezincification tanks arranged in series to form a continuous dezincification scrap steel processing path. Adjacent sets of dezincification tanks are connected by a liquid guide pipe, and each set of liquid guide pipes is equipped with a flow pump. The device also includes: dezincification rollers matching the number of dezincification tanks, the dezincification rollers being installed inside the dezincification tanks via limiting parts; a material transfer part being provided between adjacent sets of dezincification rollers to transfer the scrap steel and achieve multi-stage dezincification; a filtration section located on the liquid guide pipes to filter the dezincification liquid flowing counter-currently along the liquid guide pipes; and a flow guide section located on the outer wall of the dezincification tanks to improve the filtration effect of the filtration section while accelerating the dezincification reaction within the dezincification tanks.

[0006] As a preferred embodiment of the present invention, the limiting part includes two sets of limiting rods, which are rotatably connected to both sides of the inner wall of the dezincification tank. The dezincification roller is fitted and mounted on the two sets of limiting rods. A drive motor is fixedly connected to the side wall of the dezincification tank. The output shaft of the drive motor is fixedly connected to the end of one set of limiting rods. Multiple sets of limiting rings are fixedly connected to the outer wall of the dezincification roller. Multiple sets of limiting discs are symmetrically fixed on both sets of limiting rods, and the limiting rings are engaged in the corresponding limiting discs.

[0007] In a preferred embodiment of the present invention, the material transfer unit includes a transfer conveyor, which is fixedly connected to two adjacent sets of dezincification tanks. The input end of the transfer conveyor is located below the output end of the previous dezincification roller, and the output end of the transfer conveyor is inserted into the input end of the next dezincification roller. Baffle plates are fixedly connected to both sides of the inner wall of the dezincification tank located at the input end of the transfer conveyor, and the baffle plates are close to the output end of the dezincification roller. A feed hopper is fixedly connected to the side wall of the first-stage dezincification tank, and the output end of the feed hopper is inserted into the input end of the first-stage dezincification roller. As a preferred embodiment of the present invention, the zinc stripping drum is tilted at a predetermined angle toward its output end, the drum wall of the zinc stripping drum is provided with through holes for the reaction solution and bubbles to flow through, and a spiral propulsion part is fixedly connected inside each set of zinc stripping drums.

[0008] As a preferred embodiment of the present invention, the filtration unit includes a filter chamber, which is fixedly connected to and communicates with the liquid guide pipe. The filter chamber is located on the input side of the flow pump. A filter disc is rotatably connected inside the filter chamber. The filter disc and the inner cavity of the filter chamber form a driving cavity. Multiple sets of driving blades are fixed at equal intervals on the side wall of the filter disc located in the driving cavity.

[0009] As a preferred embodiment of the present invention, the flow guide includes a piston chamber, which is fixedly connected to the side wall of the dezincification tank. A piston plate is slidably connected inside the piston chamber. A turntable is fixedly connected to the end of a limiting rod connected to a drive motor. A push-pull rod is hinged to the top of the piston plate. The other end of the push-pull rod is rotatably connected to the side wall of the turntable. An exhaust pipe is fixedly connected to the lower part of the side wall of the piston chamber. The other end of the exhaust pipe is connected to the inner cavity of the drive chamber. The output end of the exhaust pipe is offset from the center of the filter chamber and faces the side wall of the drive blade. A one-way valve is provided inside the exhaust pipe.

[0010] As a preferred embodiment of the present invention, the lower part of the side wall of the piston chamber is fixed and connected to an air suction pipe, a one-way valve is provided inside the air suction pipe, multiple sets of branch pipes are fixed and connected to the air suction pipe, the input end of the branch pipe is fixed and connected to an air suction box, the air suction box is arc-shaped and fits against the top of the zinc stripping drum, and the air suction box is slidably connected to the zinc stripping drum.

[0011] As a preferred embodiment of the present invention, a set of bubble tubes is provided at the bottom of the dezincification tank along the axial direction of the dezincification drum, and a bubble generator is provided at the bottom of the dezincification tank, with the output end of the bubble generator connected to each set of bubble tubes.

[0012] As a preferred embodiment of the present invention, it further includes a pneumatic slide rail arranged along the axial direction of the dezincification tank, a pneumatic slide block slidably connected to the pneumatic slide rail, a telescopic cylinder fixedly connected to the top of the pneumatic slide block, and a robotic arm fixedly connected to the top of the telescopic end of the telescopic cylinder. The robotic arm is used to grab materials and put them into the dezincification drum.

[0013] As a preferred embodiment of the present invention, the end of the first-stage dezincification tank is fixed and connected to a drain pipe, which is used to discharge the dezincification liquid in each stage of the dezincification tank after the dezincification is completed.

[0014] Compared with the prior art, the present invention provides an intelligent device for automatic zinc removal, which has the following beneficial effects: 1. This intelligent equipment for automatic dezincification uses a drive motor to rotate a limit rod, which in turn drives the dezincification drum to rotate at a low speed using friction. This causes the scrap steel to tumble inside and come into full contact with the solution. Combined with the injection of micro-nano bubbles, the bubbles pass through the through holes, creating strong disturbance and air lifting effect, eliminating reaction dead zones and significantly shortening the dezincification time. At the same time, the spiral propulsion unit and the inclined design of the drum work together to push the scrap steel axially. Through the transfer conveyor, multi-stage series processing is achieved, ensuring that high-zinc scrap steel is completely dezincified, significantly improving reaction efficiency and resource recovery rate.

[0015] 2. This intelligent device for automatic zinc removal utilizes a limit rod to drive the piston in reciprocating motion, achieving gas circulation and functional linkage. The piston's downward movement compresses gas to drive the filter disc to rotate, using centrifugal force for self-cleaning and anti-clogging, ensuring efficient solid-liquid separation. The piston's upward movement generates negative pressure, which, through the suction box, forms a micro-negative pressure environment at the top of the drum. This negative pressure accelerates the rising and bursting of bubbles, enhancing gas-liquid circulation and reaction interface renewal, significantly improving the chemical reaction rate. This design requires no additional power, integrating filtration and anti-clogging with reaction enhancement, greatly improving zinc removal efficiency and system operational stability. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

[0017] Figure 1 This is a top view schematic diagram of the entire invention; Figure 2 This is a schematic side view of the entire invention. Figure 3 This is a three-dimensional schematic diagram of the present invention; Figure 4 This is a partial side-view stereoscopic diagram of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of region A in the middle; Figure 6 This is a schematic diagram of the cross-sectional structure of the zinc stripping tank of the present invention; Figure 7 This is a schematic diagram of a partial connection structure of the filter chamber of the present invention; Figure 8 This is a schematic diagram of the internal structure of the filter chamber of the present invention; Figure 9 This is a schematic diagram of the piston injection assembly structure of the present invention.

[0018] In the diagram: 1. Zinc stripping tank; 2. Liquid guide pipe; 21. Diversion pump; 22. Drain pipe; 3. Zinc stripping drum; 31. Limiting rod; 32. Drive motor; 33. Limiting ring; 331. Piston groove; 332. Piston plate; 333. Extrusion plate; 334. Return spring; 335. Spray hole; 336. Limiting block; 34. Limiting disc; 4. Transfer conveyor; 41. Baffle plate; 42. Feed hopper; 43 44. Through hole; 5. Spiral propulsion section; 6. Filter chamber; 7. Filter disc; 8. Drive chamber; 9. Drive blade; 10. Piston chamber; 11. Piston plate; 12. Turntable; 13. Push-pull rod; 14. Exhaust pipe; 15. Intake pipe; 16. Branch pipe; 17. Intake box; 18. Bubble tube; 19. Bubble generator; 20. Pneumatic slide rail; 21. Pneumatic slide block; 22. Telescopic cylinder; 33. Robotic arm. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: Reference Figures 1-8 An intelligent device for automatic zinc removal includes at least two sets of zinc removal tanks 1, with multiple sets of zinc removal tanks 1 arranged in series to form a continuous zinc removal scrap steel processing path. Adjacent sets of zinc removal tanks 1 are connected by liquid guide pipes 2, and each set of liquid guide pipes 2 is equipped with a flow pump 21. The end of the first-stage zinc removal tank 1 is fixed and connected to a drain pipe 22, which is used to discharge the zinc removal liquid from each stage of the zinc removal tank 1 after zinc removal is completed. Each set of zinc removal tanks 1 is equipped with a temperature sensor to maintain the reaction solution temperature between 20-95℃. The device also includes a series of devices connected to the zinc removal tanks 1. The zinc stripping rollers 3 are matched with the amount of zinc stripping material and are installed in the zinc stripping tank 1 through a limiting part. The zinc stripping rollers 3 are made of corrosion-resistant metal or alloy and have a rotation speed of 1-5 rpm, preferably 3 rpm. A material transfer part is provided between two adjacent sets of zinc stripping rollers 3 to complete the transfer of scrap steel and realize multi-stage zinc stripping. A filtration part is provided on the liquid guide pipe 2 to filter the zinc stripping liquid flowing countercurrently along the liquid guide pipe 2. A flow guide part is provided on the outer wall of the zinc stripping tank 1 to improve the filtration effect of the filtration part and assist in accelerating the zinc stripping reaction in the zinc stripping tank 1.

[0021] Reference Figures 1-4 and Figure 6 The limiting part includes two sets of limiting rods 31, which are rotatably connected to both sides of the inner wall of the dezincification tank 1. The dezincification roller 3 is fitted and mounted on the two sets of limiting rods 31. A drive motor 32 is fixedly connected to the side wall of the dezincification tank 1. The output shaft of the drive motor 32 is fixedly connected to the end of one set of limiting rods 31. Multiple sets of limiting rings 33 are fixedly connected to the outer wall of the dezincification roller 3. Multiple sets of limiting discs 34 are symmetrically fixed on both sets of limiting rods 31, and the limiting rings 33 are engaged in the corresponding limiting discs 34. The material transfer part includes a transfer conveyor 4, which is fixedly connected to two adjacent sets of dezincification tanks 1. The input of the transfer conveyor 4 is... The first-stage zinc stripping tank 1 is located below the output end of the previous-stage zinc stripping roller 3. The output end of the transfer conveyor 4 is inserted into the input end of the next-stage zinc stripping roller 3. Both sides of the inner wall of the zinc stripping tank 1 located at the input end of the transfer conveyor 4 are fixedly connected to baffle plates 41. The baffle plates 41 are close to the output end of the zinc stripping roller 3. The side wall of the first-stage zinc stripping tank 1 is fixedly connected to a feed hopper 42. The output end of the feed hopper 42 is inserted into the input end of the first-stage zinc stripping roller 3. A set of bubble tubes 8 is arranged at the bottom of the inner cavity of the zinc stripping tank 1 along the axial direction of the zinc stripping roller 3. A bubble generator 81 is arranged at the bottom of the zinc stripping tank 1. The output end of the bubble generator 81 is connected to each set of bubble tubes 8.

[0022] Reference Figure 2 , Figure 3 and Figure 6The zinc stripping drum 3 is tilted at a preset angle towards its output end, preferably 5°, to assist the metal material in moving to the next stage. The drum wall of the zinc stripping drum 3 is provided with through holes 43 for the reaction solution and air bubbles to flow through. The through holes 43 are evenly distributed circumferentially and axially on the drum wall of the zinc stripping drum 3, with an opening rate of 30%-50% of the surface area of ​​the zinc stripping drum 3, preferably 40%. The through holes 43 are circular, elliptical, or polygonal. The diameter of the through holes 43 is 5-15 mm, preferably 10 mm. The spacing between the through holes 43 is 2-4 times the diameter, preferably 3 times (i.e., 30 mm). Each set of zinc stripping drums 3 is fixedly connected to a spiral propulsion part 44, which is a continuous spiral blade. The pitch of the spiral blade is 0.5-0.8 times the diameter of the zinc stripping drum 3, preferably 0.6 times. The height of the spiral blade is 0.1-0.3 times the inner diameter of the zinc stripping drum 3, preferably 0.2 times.

[0023] With the above-described structure, the drive motor 32 drives the limiting rod 31 to rotate. Under the action of friction, the dezincification drum 3 rotates at a low speed between the two sets of limiting rods 31. At this time, the scrap steel is constantly tumbling inside the dezincification drum 3 under the action of rotation, and comes into full contact with the dezincification solution. At the same time, the bubble generator 81 is turned on, injecting micro-nano bubbles into the dezincification solution in the dezincification tank 1. Subsequently, the bubbles will pass through the through hole 43 into the dezincification drum 3, and form a large number of microbubbles inside the dezincification drum 3. This not only increases the disturbance of the solution and prevents the scrap steel from accumulating, but also accelerates the renewal of the reaction interface through the air lifting effect, greatly increasing the solid-liquid contact. The increased area eliminates dead zones in the reaction process, significantly shortening the dezincification time and thus improving dezincification efficiency. Furthermore, with the cooperation of the screw propulsion unit 44 and the inclined dezincification drum 3, the scrap steel continuously moves along the axial direction of the dezincification drum 3 towards its output end. When the scrap steel is discharged from the output end of the previous stage dezincification drum 3, it is guided by the baffle plate 41 to the input end of the transfer conveyor 4, and then fed into the input end of the next stage dezincification drum 3 by the transfer conveyor 4. This process continues sequentially until the scrap steel passes through all the connected dezincification pools 1, completing multi-stage dezincification on its own. This achieves continuous and automated dezincification production, ensuring that high-zinc scrap steel is thoroughly processed and improving resource recovery rate.

[0024] Reference Figures 3-5 , Figure 7 and Figure 8The filtration section includes a filter chamber 5, which is fixedly connected to and communicates with the liquid guide pipe 2. The filter chamber 5 is located on the input side of the flow pump 21. A filter disc 51 is rotatably connected inside the filter chamber 5, and the filter disc 51 and the inner cavity of the filter chamber 5 form a drive cavity 52. ​​Multiple sets of drive blades 53 are fixed at equal intervals on the side wall of the filter disc 51 located in the drive cavity 52. ​​The flow guiding section includes a piston chamber 6, which is fixedly connected to the side wall of the zinc stripping tank 1. A piston plate 61 is slidably connected inside the piston chamber 6. A turntable 62 is fixedly connected to the end of a limiting rod 31 connected to the drive motor 32. A push-pull rod 63 is hinged to the top of the piston plate 61, and the other end of the push-pull rod 63 is rotatably connected to the side wall of the turntable 62. The lower part of the side wall of the piston chamber 6 is fixed and connected to an exhaust pipe 64. The other end of the exhaust pipe 64 is connected to the inner cavity of the drive chamber 52. The bottom of the drive chamber 52 is provided with a vent hole. The side wall of the filter chamber 5 is fixed and connected to a drain pipe. The output end of the exhaust pipe 64 is offset from the center of the filter chamber 5 and faces the side wall of the drive blade 53. A one-way valve is provided in the exhaust pipe 64. The lower part of the side wall of the piston chamber 6 is fixed and connected to an air intake pipe 7. A one-way valve is provided in the air intake pipe 7. Multiple sets of branch pipes 71 are fixed and connected to the air intake pipe 7. The input end of the branch pipe 71 is fixed and connected to an air intake box 72. The air intake box 72 is arc-shaped and fits against the top of the zinc stripping roller 3. The air intake box 72 and the zinc stripping roller 3 are slidably connected.

[0025] It should be noted that the one-way valve in the exhaust pipe 64 can only allow the gas in the piston chamber 6 to be delivered to the drive chamber 52; the one-way valve in the intake pipe 7 can only allow the gas at the top of the dezincification roller 3 to enter the piston chamber 6.

[0026] With the above structure, when the guide pump 21 draws liquid and flows along the guide pipe 2, the driving force generated by the rotation of the limiting rod 31 drives the turntable 62 at its end to rotate. Combined with the push-pull rod 63, this causes the piston plate 61 to slide back and forth within the piston chamber 6. As the piston plate 61 slides downwards, it compresses the gas within the piston chamber 6, thereby opening the one-way valve in the exhaust pipe 64. This allows the high-pressure airflow to enter the drive chamber 52 along the exhaust pipe 64. Since the nozzle is offset from the center of the filter chamber 5 and faces the drive blade 53, the high-speed airflow impacting the drive blade 53 pushes the filter disc 51 to rotate within the filter chamber 5. The rotating filter disc 51 not only filters the flowing zinc stripping liquid, but the centrifugal force and shear force generated by its rotation also prevent filter clogging, ensuring efficient solid-liquid separation while also cleaning itself, thus improving the flow rate. When the piston plate 61 moves upwards, it generates negative pressure suction within the piston chamber 6, thereby opening the one-way valve in the suction pipe 7 and directing the suction force... The airflow is transferred to the suction box 72. Since the suction box 72 is attached to the top of the dezincification drum 3, the final suction force will pass through the through hole 43 at the top of the dezincification drum 3 and enter the dezincification drum 3. That is, the airflow in the dezincification drum 3 is drawn into the piston chamber 6. This firstly replenishes the gas in the piston chamber 6 used to drive the rotation of the filter disc 51. Secondly, it can generate a slight negative pressure at the top of the dezincification drum 3, thereby reducing the gas phase pressure at the top of the dezincification drum 3 and increasing the pressure difference between the inside and outside of the dezincification liquid. This causes the bubbles in the dezincification liquid to rise and break up faster. This accelerates the cycle frequency of bubble "generation, rising and breaking up", so that more fresh bubbles pass through the scrap steel layer per unit time, thereby significantly improving the chemical reaction rate and effectively improving the dezincification efficiency.

[0027] Reference Figure 1 , Figure 2 It also includes a pneumatic slide rail 9 arranged along the axial direction of the dezincification tank 1. A pneumatic slide block 91 is slidably connected to the pneumatic slide rail 9. A telescopic cylinder 92 is fixedly connected to the top of the pneumatic slide block 91. A mechanical arm 93 is fixedly connected to the top of the telescopic end of the telescopic cylinder 92. The mechanical arm 93 is used to grab materials and put them into the dezincification drum 3.

[0028] In addition, a concentration sensor is installed in each zinc stripping tank 1. By acquiring the concentration of the zinc stripping solution in each zinc stripping tank 1 in real time, and with the countercurrent effect generated by the liquid guide pipe 2 and the flow pump 21, the concentration of the solution in each zinc stripping tank 1 is intelligently adjusted, which effectively saves resources and improves energy saving.

[0029] Example 2: Reference Figure 9To improve the thoroughness of zinc removal from scrap steel inside the dezincifying drum 3, a piston spraying assembly is proposed. This assembly includes piston grooves 331 evenly spaced along the circumference of a limiting ring 33. A piston plate 332 is slidably connected within each set of piston grooves 331. An extrusion plate 333 is fixedly connected to the outer wall of the piston plate 332. A return spring 334 is fixedly connected between the inner wall of the piston plate 332 and the piston groove 331. Spray holes 335 are opened on the side of the piston groove 331 facing the axis of the inner cavity of the dezincifying drum 3. A limiting block 336 is provided at the opening of each set of piston grooves 331 to restrict the movement area of ​​the piston plate 332. When the dezincifying drum 3 and the limiting ring 33 rotate as a whole due to the friction generated by the rotation of the limiting rod 31, whenever the extrusion plate 333 moves to the limiting rod 31, the limiting rod 31 will exert a squeezing effect on the extrusion plate 333, causing the piston plate 332 to slide towards the side compressing the return spring 334. This compresses the piston groove 331, causing the gas and liquid inside the piston groove 331 to be sprayed towards the axis of the inner cavity of the dezincification drum 3 through the spray hole 335. At this time, the above-mentioned effect can be produced at the limit rods 31 on both sides. When the extrusion plate 333 passes the limit rod 31, the return spring 334 will generate a negative pressure suction force in the piston groove 331, thereby drawing the liquid and gas in the dezincification drum 3 into the piston groove 331 (when the liquid level in the dezincification drum 3 is higher than the limit rod 31, liquid is drawn in; when the liquid level in the dezincification drum 3 is lower than the limit rod 31, gas is drawn in, and both gas and liquid can produce the above-mentioned pushing effect). This process repeats, and as the dezincification drum 3 rotates, the liquid thrust can be generated intermittently on both sides of its inner cavity, thereby pushing the scrap steel in the dezincification drum 3 towards its axis, realizing the flipping of the scrap steel, ensuring that all scrap steel can fully contact the dezincification liquid, and thus improving the dezincification efficiency.

[0030] Reference Figures 1-8In this invention, during use, the pneumatic slide rail 9 and pneumatic slide block 91 are first used to move the robotic arm 93 along the pneumatic slide rail 9 and grab scrap steel, which is then fed into the first-stage dezincification drum 3 through the feed hopper 42. Next, the drive motor 32 drives the limit rod 31 to rotate. Under the action of friction, the dezincification drum 3 rotates at a low speed between the two sets of limit rods 31. At this time, the scrap steel continuously tumbles inside the dezincification drum 3 under its rotation and comes into full contact with the dezincification solution. Simultaneously, the bubble generator 81 is turned on, injecting micro-nano bubbles into the dezincification solution in the dezincification tank 1. The bubbles then pass through the through hole 43 into the dezincification drum 3, forming a large number of microbubbles inside. This process not only increases solution agitation to prevent scrap steel accumulation, but also accelerates the renewal of the reaction interface through air lifting, greatly increasing the solid-liquid contact area, eliminating reaction dead zones, and significantly shortening the dezincification time, thereby improving dezincification efficiency. In addition, with the cooperation of the screw propulsion unit 44 and the inclined dezincification drum 3, the scrap steel will continuously move along the axial direction of the dezincification drum 3 towards its output end. When the scrap steel is discharged from the output end of the previous stage dezincification drum 3, it is guided by the baffle plate 41 to the input end of the transfer conveyor 4, and then sent by the transfer conveyor 4 to the input end of the next stage dezincification drum 3. This process is carried out sequentially until the scrap steel passes through all the dezincification pools 1 in series, completing multi-stage dezincification, ensuring that high zinc content scrap steel is thoroughly processed, and improving resource recovery rate.

[0031] Furthermore, since the reaction in the upper-level zinc stripping tank 1 is more pronounced than that in the lower-level zinc stripping tank 1, the concentration of the zinc stripping solution in the upper-level zinc stripping tank 1 decreases more rapidly. By adding a liquid guide pipe 2 and a diversion pump 21, the zinc stripping solution in the lower-level zinc stripping tank 1 is countercurrently drawn into the upper-level zinc stripping tank 1, thereby maintaining a reasonable concentration gradient, significantly reducing the consumption of reaction reagents and water, achieving efficient recycling of resources, and improving energy-saving effects. At the same time, it is also convenient to discharge the waste liquid in each level of zinc stripping tank 1 through the drain pipe 22 set at the end of the first-level zinc stripping tank 1 after zinc stripping is completed, effectively improving the convenience of drainage.

[0032] Meanwhile, when the guide pump 21 draws liquid and flows along the guide pipe 2, the driving force generated by the rotation of the limit rod 31 drives the turntable 62 at its end to rotate. Combined with the push-pull rod 63, this causes the piston plate 61 to slide back and forth within the piston chamber 6. As the piston plate 61 slides downwards, it compresses the gas within the piston chamber 6, thereby opening the one-way valve in the exhaust pipe 64. This allows the high-pressure airflow to enter the drive chamber 52 along the exhaust pipe 64. Since the nozzle is offset from the center of the filter chamber 5 and faces the drive blade 53, the high-speed airflow impacting the drive blade 53 pushes the filter disc 51 to rotate within the filter chamber 5. The rotating filter disc 51 not only filters the flowing zinc stripping liquid, but the centrifugal force and shear force generated by its rotation also prevent filter clogging, ensuring efficient solid-liquid separation while also cleaning itself, thus improving flow efficiency. When the piston plate 61 moves upwards, it generates negative pressure suction within the piston chamber 6, thereby opening the one-way valve in the suction pipe 7 and directing the suction force... The airflow is transferred to the suction box 72. Since the suction box 72 is attached to the top of the dezincification drum 3, the final suction force will pass through the through hole 43 at the top of the dezincification drum 3 and enter the dezincification drum 3. That is, the airflow in the dezincification drum 3 is drawn into the piston chamber 6. This firstly replenishes the gas in the piston chamber 6 used to drive the rotation of the filter disc 51. Secondly, it can generate a slight negative pressure at the top of the dezincification drum 3, thereby reducing the gas phase pressure at the top of the dezincification drum 3 and increasing the pressure difference between the inside and outside of the dezincification liquid. This causes the bubbles in the dezincification liquid to rise and break up faster. This accelerates the cycle frequency of bubble "generation, rising and breaking up", so that more fresh bubbles pass through the scrap steel layer per unit time, thereby significantly improving the chemical reaction rate and effectively improving the dezincification efficiency.

[0033] Components not described in detail in this article are existing technologies.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An intelligent device for automatic dezincification, comprising at least two groups of dezincification cell (1), characterized in that, Multiple sets of zinc stripping tanks (1) are arranged in series to form a continuous zinc stripping scrap steel processing path. Adjacent sets of zinc stripping tanks (1) are connected by liquid guide pipes (2), and each set of liquid guide pipes (2) is equipped with a diversion pump (21). The system also includes: The number of dezincification rollers (3) matches the number of dezincification tanks (1), and the dezincification rollers (3) are installed inside the dezincification tanks (1) by means of limiting parts. Among them, a material transfer section is set between two adjacent sets of dezincification rollers (3) to complete the transfer of scrap steel and realize multi-stage dezincification; The filter section is provided on the liquid guide pipe (2) and is used to filter the zinc stripping liquid flowing countercurrently along the liquid guide pipe (2); The flow guide is located on the outer wall of the dezincification tank (1) and is used to improve the filtration effect of the filter section while helping to accelerate the dezincification reaction in the dezincification tank (1).

2. The intelligent device for automatic dezincification according to claim 1, characterized in that, The limiting part includes two sets of limiting rods (31), which are rotatably connected to the inner walls of the dezincification tank (1) respectively. The dezincification roller (3) is fitted and mounted on the two sets of limiting rods (31). A drive motor (32) is fixedly connected to the side wall of the dezincification tank (1). The output shaft of the drive motor (32) is fixedly connected to the end of one set of limiting rods (31). Multiple sets of limiting rings (33) are fixedly connected to the outer wall of the dezincification roller (3). Multiple sets of limiting discs (34) are symmetrically fixed on both sets of limiting rods (31), and the limiting rings (33) are engaged in the corresponding limiting discs (34).

3. The intelligent device for automatic dezincification according to claim 1, characterized in that, The material transfer unit includes a transfer conveyor (4), which is fixedly connected to two adjacent sets of dezincification tanks (1). The input end of the transfer conveyor (4) is located below the output end of the previous dezincification roller (3). The output end of the transfer conveyor (4) is inserted into the input end of the next dezincification roller (3). Baffle plates (41) are fixedly connected to both sides of the inner wall of the dezincification tank (1) located at the input end of the transfer conveyor (4). The baffle plates (41) are close to the output end of the dezincification roller (3). A feed hopper (42) is fixedly connected to the side wall of the first-stage dezincification tank (1). The output end of the feed hopper (42) is inserted into the input end of the first-stage dezincification roller (3).

4. The intelligent device for automatic dezincification according to claim 1, characterized in that, The zinc stripping roller (3) is tilted at a preset angle toward its output end. The cylinder wall of the zinc stripping roller (3) is provided with through holes (43) for the reaction solution and bubbles to flow through. Each set of zinc stripping rollers (3) is fixedly connected with a spiral propulsion part (44).

5. The intelligent device for automatic dezincification according to claim 2, characterized in that, The filtration unit includes a filter chamber (5), which is fixedly connected to the liquid guide pipe (2) and communicates with the liquid guide pipe (2). The filter chamber (5) is located on the input side of the flow pump (21). A filter disc (51) is rotatably connected inside the filter chamber (5). The filter disc (51) and the inner cavity of the filter chamber (5) form a drive cavity (52). Multiple sets of drive blades (53) are fixed at equal intervals on the side wall of the filter disc (51) in the drive cavity (52).

6. The intelligent device for automatic dezincification according to claim 5, characterized in that, The flow guide includes a piston chamber (6), which is fixedly connected to the side wall of the dezincification tank (1). A piston plate (61) is slidably connected inside the piston chamber (6). A turntable (62) is fixedly connected to the end of the limiting rod (31) connected to the drive motor (32). A push-pull rod (63) is hinged to the top of the piston plate (61). The other end of the push-pull rod (63) is rotatably connected to the side wall of the turntable (62). An exhaust pipe (64) is fixed and connected to the lower part of the side wall of the piston chamber (6). The other end of the exhaust pipe (64) is connected to the inner cavity of the drive chamber (52). The output end of the exhaust pipe (64) is offset from the center of the filter chamber (5) and faces the side wall of the drive blade (53). A one-way valve is provided inside the exhaust pipe (64).

7. The intelligent device for automatic dezincification according to claim 6, characterized in that, The lower side wall of the piston chamber (6) is fixed and connected to an air suction pipe (7). A one-way valve is installed inside the air suction pipe (7). Multiple branch pipes (71) are fixed and connected to the air suction pipe (7). The input end of the branch pipe (71) is fixed and connected to an air suction box (72). The air suction box (72) is arc-shaped and fits against the top of the zinc stripping roller (3). The air suction box (72) and the zinc stripping roller (3) are slidably connected.

8. The intelligent device for automatic dezincification according to claim 4, characterized in that, The bottom of the dezincification tank (1) is provided with a set of bubble tubes (8) along the axial direction of the dezincification drum (3). A bubble generator (81) is provided at the bottom of the dezincification tank (1), and the output end of the bubble generator (81) is connected to each set of bubble tubes (8).

9. The intelligent device for automatic dezincification according to claim 1, characterized in that, It also includes a pneumatic slide rail (9) arranged along the axial direction of the dezincification tank (1), a pneumatic slide block (91) is slidably connected on the pneumatic slide rail (9), a telescopic cylinder (92) is fixedly connected to the top of the pneumatic slide block (91), and a mechanical arm (93) is fixedly connected to the top of the telescopic end of the telescopic cylinder (92). The mechanical arm (93) is used to grab materials and put them into the dezincification drum (3).

10. The intelligent device for automatic dezincification according to claim 1, characterized in that, The first-stage zinc removal tank (1) is fixed at one end and connected to a drain pipe (22), which is used to drain the zinc removal liquid in each zinc removal tank (1) after zinc removal is completed.

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