Wastewater treatment device for waste metal recovery

Abstract

The invention belongs to the technical field of wastewater treatment, and particularly relates to a waste metal recovery wastewater treatment device which comprises a base frame, a reaction frame is arranged at the upper end of the base frame, a cover plate is arranged at the upper end of the reaction frame, a fixed connection frame is arranged on one side of the base frame, and a replacement structure is arranged in the fixed connection frame. Reaction structures are arranged in the base frame and the reaction frame; the reaction structure comprises a water passing pipe, the water passing pipe is rotationally connected to the surface of the cover plate, and one end of the water passing pipe extends into the reaction frame. By arranging the replacement structure, when the activated carbon plate is used for a long time and the interior of the activated carbon plate is saturated, the second placement frame moves the saturated activated carbon plate to the replacement position for replacement, and the first placement frame can drive a new activated carbon plate to move to the lower end of the reaction cylinder, so that the replacement of the activated carbon plate is realized; and through the design of sliding grooves in the surfaces of the partition plates, it can be guaranteed that movement between the first containing frame and the second containing frame does not affect each other and is conducted simultaneously.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater treatment, in particular to a wastewater treatment device for recycling scrap metals. Background Art

[0002] In the scrap metal recycling industry, a large amount of wastewater containing heavy metals and other pollutants will be generated from the dismantling, sorting, smelting to processing of scrap metals. If these wastewaters are discharged directly without treatment, they will cause serious pollution to the soil, water bodies and ecological environment, and endanger human health. Therefore, these wastewaters need to be purified before they are discharged.

[0003] A patent application with publication number CN119822431A discloses a multi-stage adsorption wastewater treatment equipment, including a water inlet tank, several extension frames fixedly connected to the top of the water inlet tank, and a sealing plate slidably connected to the bottom end of one of the extension frames. The sealing plate is used to seal the bottom end of the water inlet tank, and the water inlet pipe is fixedly connected to the middle of the sealing plate. The equipment solves the problem in the prior art that there is a lack of effective distribution measures before the wastewater contacts the adsorption layer, making it difficult for the wastewater to diffuse and flow over a large range in the filter filler, affecting the wastewater treatment effect and the wastewater treatment efficiency.

[0004] There are still some problems in the actual application of the above scheme. When using the above equipment to treat the wastewater generated by metal recovery, activated carbon plates will be used to treat the wastewater in the area to be treated. However, after a period of continuous treatment, the adsorption sites of the activated carbon are gradually occupied and the adsorption capacity is gradually saturated. At this time, the metal ions in the wastewater may not be effectively removed, causing secondary pollution. If the equipment is stopped at this time and the activated carbon plates are removed and replaced, the working cycle will be greatly affected. In addition, when replacing the activated carbon plates, the high concentration of heavy metals in the wastewater can easily cause harm to the operators.

[0005] To this end, the present invention provides a wastewater treatment device for scrap metal recovery. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: a wastewater treatment device for scrap metal recycling described in the present invention comprises a base frame, a reaction frame is provided at the upper end of the base frame, a cover plate is provided at the upper end of the reaction frame, a fixed frame is provided on one side of the base frame, a replacement structure is provided inside the fixed frame, and reaction structures are provided inside the base frame and the reaction frame; the reaction structure comprises: a water pipe, the water pipe is rotatably connected to the surface of the cover plate, and one end of the water pipe extends to the interior of the reaction frame; a reaction cylinder, two of the reaction cylinders are provided inside the reaction frame; a collecting cylinder, two The collecting cylinder is arranged at the lower end of the reaction frame, and an activated carbon plate is provided between the reaction cylinder and the collecting cylinder; the replacement structure includes: a partition, the partition is arranged at the lower end of the reaction frame, and the partition is located between the two collecting cylinders; a slide, the slide is opened on both sides of the partition; a first placement frame, the first placement frame is slidably connected to the inside of the slide, and an activated carbon plate is placed on the upper end of the first placement frame; a second placement frame, the second placement frame is slidably connected to the upper end of the partition, and the second placement frame is located at the lower end of the reaction cylinder in the initial state, and an activated carbon plate is placed on the upper end of the second placement frame.

[0008] Preferably, the replacement structure also includes: a slide rail, which is opened at the lower end of the slide groove on the side wall of the partition; a sliding frame, which is slidably connected to the inner wall of the slide rail; a lifting rod, which is arranged at the upper end of the sliding frame, and the first placement frame is slidably connected to the surface of the lifting rod; a sliding rod, which is arranged on one side of the fixed frame; a driving block, which is slidably connected to the surface of the sliding rod, and the driving block is connected to the second placement frame.

[0009] Preferably, surfaces of the first placement frame and the second placement frame are both hollowed out.

[0010] Preferably, a rotating piece is provided at one end of the first placement frame close to the partition, and the rotating piece rotates on the inner wall of the sliding groove.

[0011] Preferably, a fixing buckle is provided on the inner wall of the slide groove, and the fixing buckle is in contact with the rotating piece.

[0012] Preferably, one end of each of the first placement frame and the second placement frame is provided with an abutment bar, and the abutment bar abuts against one side of the activated carbon plate.

[0013] Preferably, a slot is provided inside the activated carbon plate, a limiting plate is provided on one side of the reaction frame, a blocking block is provided on the surface of the limiting plate, and the blocking block slides on the inner wall of the slot.

[0014] Preferably, one end of the water pipe is aligned with the inner wall of the reaction cylinder during operation.

[0015] Preferably, the surfaces of the first placement frame and the second placement frame are both provided with anti-slip pads, and the anti-slip pads are in contact with the activated carbon plate.

[0016] Preferably, one side of the fixed frame is rotatably connected to an auxiliary shaft, the upper end of the auxiliary shaft is covered with a connecting track, and the other end of the connecting track is covered on the surface of the water pipe, the lower end of the auxiliary shaft is provided with an auxiliary gear, and one side of the driving block is provided with a tooth plate, and the tooth plate engages with the auxiliary gear during operation.

[0017] The beneficial effects of the present invention are as follows: 1. The wastewater treatment device for scrap metal recycling described in the present invention is provided with a first placement frame and a second placement frame. When treating wastewater, the wastewater is first transferred to the interior of one of the reaction cylinders through a water pipe, and then the activated carbon plate located below the reaction cylinder will filter the wastewater. After filtering for a period of time, the adsorption capacity of the activated carbon plate is gradually saturated, so it needs to be replaced. At this time, the driving block near one end of the auxiliary shaft is started. The driving block not only drives the water pipe to change direction through the auxiliary gear, so that the wastewater enters the interior of the other reaction cylinder, thereby enabling the wastewater treatment to be carried out continuously, but also drives the saturated activated carbon plate to move toward the end away from the reaction cylinder through the second placement frame, and starts the sliding block at the same time as the driving block moves. The sliding block will drive a new activated carbon plate to the lower end of the reaction cylinder through the first placement frame, thereby realizing the replacement of the activated carbon plate, and the design of the slide groove on the surface of the partition can also ensure that the movement between the first placement frame and the second placement frame does not affect each other and is carried out simultaneously.

[0018] 2. The wastewater treatment device for scrap metal recycling described in the present invention is equipped with an auxiliary gear. During the movement of the driving block, the toothed plate at one end of the driving block will engage with the auxiliary gear, thereby causing the auxiliary gear to rotate. At the same time as the auxiliary gear rotates, the auxiliary shaft connected to the auxiliary gear will drive the water pipe to rotate automatically through the connecting track, thereby realizing the transfer of wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 is a perspective view of embodiment 1 of the present invention; Figure 2 This is a front view of the first embodiment of the present invention; Figure 3 is an internal view of the fixed frame of the present invention; Figure 4is an initial diagram of the first placement frame and the second placement frame of the present invention; Figure 5 It is a working diagram of the first placement frame and the second placement frame of the present invention; Figure 6 It is a bottom view of the first placement frame and the second placement frame of the present invention; Figure 7 It is a side view of the sliding frame and the first placement frame of the present invention; Figure 8 This is a connection diagram of the water pipe and the auxiliary gear of the present invention; Figure 9 yes Figure 8 A partial enlarged view of the middle part; In the figure: 1. base frame; 2. reaction frame; 3. fixed frame; 4. reaction structure; 41. water pipe; 42. reaction cylinder; 43. collection cylinder; 44. activated carbon plate; 45. card slot; 5. replacement structure; 501. connecting track; 502. auxiliary shaft; 503. partition; 504. auxiliary gear; 505. tooth plate; 506. sliding rod; 507. abutment bar; 508. limit plate; 509. first placement frame; 510. sliding frame; 511. lifting rod; 512. slide groove; 513. slide rail; 514. driving block; 515. card block; 516. second placement frame; 517. fixing buckle; 518. anti-slip pad; 519. rotating piece; 6. cover plate. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] Example 1: Figures 1 to 9As shown, a wastewater treatment device for recycling scrap metal according to an embodiment of the present invention includes a base frame 1, a reaction frame 2 is provided at the upper end of the base frame 1, a cover plate 6 is provided at the upper end of the reaction frame 2, a fixed frame 3 is provided on one side of the base frame 1, a replacement structure 5 is provided inside the fixed frame 3, and a reaction structure 4 is provided inside both the base frame 1 and the reaction frame 2; the reaction structure 4 includes: a water pipe 41, the water pipe 41 is rotatably connected to the surface of the cover plate 6, and one end of the water pipe 41 extends to the interior of the reaction frame 2; a reaction cylinder 42, two reaction cylinders 42 are provided inside the reaction frame 2; a collecting cylinder 43, two collecting cylinders 43 are provided at the lower end of the reaction frame 2, and the reaction An activated carbon plate 44 is provided between the cylinder 42 and the collecting cylinder 43; the replacement structure 5 includes: a partition 503, the partition 503 is provided at the lower end of the reaction frame 2, and the partition 503 is located between the two collecting cylinders 43; a slide 512, the slide 512 is opened on both sides of the partition 503; a first placement frame 509, the first placement frame 509 is slidably connected to the inside of the slide 512, and the activated carbon plate 44 is placed on the upper end of the first placement frame 509; a second placement frame 516, the second placement frame 516 is slidably connected to the upper end of the partition 503, and the second placement frame 516 is located at the lower end of the reaction cylinder 42 in the initial state, and the activated carbon plate 44 is placed on the upper end of the second placement frame 516.

[0023] Specifically, the wastewater treatment device for scrap metal recycling of the scheme is mainly used to treat the wastewater generated in the process of scrap metal recycling. The wastewater contains a large amount of heavy metals and other pollutants. During the treatment, the wastewater is first passed through a screen to remove the larger particles of suspended matter and debris inside, and then the wastewater with impurities removed is passed through the water pipe 41. Since the end of the water pipe 41 at this time points to the inside of one of the reaction cylinders 42, and the second placement frame 516 is holding an activated carbon plate 44 at the lower end of the reaction cylinder 42, the wastewater entering the reaction cylinder 42 will come into contact with the activated carbon plate 44. The activated carbon plate 44 has a good pore structure. When the wastewater passes through these pores, heavy metal ions and other pollutants are removed. The chemical molecules will be adsorbed on the surface and pores of the activated carbon plate 44, and then the treated wastewater will pass through the activated carbon plate 44 into the interior of the collection cylinder 43 for deep treatment. However, as the use time increases, the adsorption sites of the activated carbon in the activated carbon plate 44 are gradually occupied, and the adsorption capacity is gradually saturated. At this time, the metal ions in the wastewater may not be effectively removed, resulting in poor water quality and secondary pollution. At this time, the water pipe 41 is started to rotate, and the water pipe 41 rotates on the surface of the cover plate 6. When the end of the water pipe 41 points to the interior of the other reaction cylinder 42, the rotation of the water pipe 41 is stopped. At this time, the wastewater will pass into the interior of the other reaction cylinder 42 for treatment, thereby ensuring the treatment efficiency of the wastewater. The process can be continued continuously, and then the first placement frame 509 and the second placement frame 516 at the lower end of the saturated activated carbon plate 44 are started. Since the saturated activated carbon plate 44 is located on the surface of the second placement frame 516, a new activated carbon plate 44 is placed on the surface of the first placement frame 509. Then the second placement frame 516 will move with the saturated activated carbon plate 44 in the direction away from the reaction cylinder 42, and the first placement frame 509 will move with the activated carbon plate 44 inside the chute 512. Since the middle part of the chute 512 is designed to descend, when the first placement frame 509 moves to the same vertical line as the second placement frame 516, the first placement frame 509 is located at the lower end of the second placement frame 516. When the new activated carbon plate 44 is moved to the lower end of the reaction tube 42 by the second placement frame 516, the saturated activated carbon plate 44 is also moved to the initial position of the first placement frame 509 by the second placement frame 516, thereby completing the replacement process. By setting the replacement structure 5, when the activated carbon plate 44 is used for a long time and becomes saturated inside, the second placement frame 516 will move the saturated activated carbon plate 44 to the replacement position for replacement, and the first placement frame 509 can drive a new activated carbon plate 44 to move to the lower end 42 of the reaction tube, thereby realizing the replacement of the activated carbon plate 44, and the design of the slide groove 512 on the surface of the partition 503 can also ensure that the movement between the first placement frame 509 and the second placement frame 516 does not affect each other and is carried out simultaneously.

[0024] like Figures 1 to 7As shown, the replacement structure 5 also includes: a slide rail 513, which is opened at the lower end of the slide groove 512 on the side wall of the partition 503; a sliding frame 510, which is slidably connected to the inner wall of the slide rail 513; a lifting rod 511, which is arranged at the upper end of the sliding frame 510, and the first placement frame 509 is slidably connected to the surface of the lifting rod 511; a sliding rod 506, which is arranged on one side of the fixed frame 3; a driving block 514, which is slidably connected to the surface of the sliding rod 506, and the driving block 514 is connected to the second placement frame 516.

[0025] Specifically, when the activated carbon plate 44 needs to be replaced, the driving block 514 and the sliding frame 510 are started. The driving block 514 will drive the second placement frame 516 to slide on the surface of the sliding rod 506, thereby transferring the saturated activated carbon plate 44. The sliding frame 510 will slide on the inner wall of the slide rail 513 and drive the first placement frame 509 to move together. When the first placement frame 509 moves to the inclined position of the inner wall of the slide groove 512, the first placement frame 509 will move horizontally while moving vertically on the surface of the lifting rod 511, thereby adjusting the height of the first placement frame 509 itself, and then when it moves to the horizontal movement position, the replacement of the activated carbon plate 44 is completed.

[0026] like Figures 1 to 6 As shown, the surfaces of the first placement frame 509 and the second placement frame 516 are both hollowed out.

[0027] Specifically, by setting the surfaces of the first placement frame 509 and the second placement frame 516 to be hollow, wastewater can pass through the activated carbon plate 44 without affecting the placement of the activated carbon plate 44, and thus smoothly enter the interior of the collection tube 43.

[0028] like Figure 6 As shown, a rotating piece 519 is provided at one end of the first placement frame 509 close to the partition 503 , and the rotating piece 519 rotates on the inner wall of the sliding groove 512 .

[0029] Specifically, by setting a rotating piece 519 on one side of the first placement frame 509, when replacing the activated carbon plate 44, the rotating piece 519 on one side of the first placement frame 509 will rotate on the inner wall of the slide groove 512, which can reduce the friction between the first placement frame 509 and the slide groove 512, thereby increasing the service life of the two.

[0030] like Figures 5 and 6 As shown, a fixing buckle 517 is provided on the inner wall of the sliding groove 512 , and the fixing buckle 517 is in contact with the rotating piece 519 .

[0031] Specifically, by setting a fixing buckle 517 on the inner wall of the slide groove 512, and the fixing buckle 517 is made of elastic material, when the first placement frame 509 moves to the lower end of the reaction cylinder 42, the rotating piece 519 will be engaged with the fixing buckle 517, thereby ensuring that the activated carbon plate 44 on the surface of the first placement frame 509 will not shake when wastewater treatment is carried out.

[0032] like Figures 1 to 5 As shown, one end of the first placement frame 509 and the second placement frame 516 are both provided with abutment bars 507 , and the abutment bars 507 abut against one side of the activated carbon plate 44 .

[0033] Specifically, by providing abutment bars 507 at one end of the first placement frame 509 and the second placement frame 516, when the activated carbon plate 44 is transported, the abutment bars 507 will abut against one side of the activated carbon plate 44, thereby making the transport of the activated carbon plate 44 more stable.

[0034] like Figures 1 to 4 As shown, a slot 45 is provided inside the activated carbon plate 44 , a limiting plate 508 is provided on one side of the reaction frame 2 , a blocking block 515 is provided on the surface of the limiting plate 508 , and the blocking block 515 slides on the inner wall of the slot 45 .

[0035] Specifically, by providing the card slot 45, when the first placement frame 509 and the second placement frame 516 transport the activated carbon plate 44 to the lower end of the reaction cylinder 42, the card block 515 will move into the inside of the card slot 45, thereby further ensuring the stability of the activated carbon plate 44 during wastewater treatment.

[0036] like Figures 1 to 3 As shown, one end of the water pipe 41 is aligned with the inner wall of the reaction tube 42 during operation.

[0037] Specifically, by aligning one end of the water pipe 41 with the inner wall of the reaction cylinder 42, when the wastewater enters the interior of the reaction cylinder 42 through the water pipe 41, the wastewater will diffuse from the outside to the inside along the inner wall of the reaction cylinder 42, thereby ensuring that the wastewater can be evenly distributed on the surface of the activated carbon plate 44.

[0038] like Figures 5 to 7 As shown, the surfaces of the first placement frame 509 and the second placement frame 516 are both provided with anti-slip pads 518 , and the anti-slip pads 518 are in contact with the activated carbon plate 44 .

[0039] Specifically, by setting anti-slip pads 518 on the surfaces of the first placement frame 509 and the second placement frame 516, when the first placement frame 509 and the second placement frame 516 transport the activated carbon plate 44, the anti-slip pads 518 can increase the friction between the first placement frame 509 and the second placement frame 516 and the activated carbon plate 44, thereby ensuring stable transportation of the activated carbon plate 44.

[0040] Example 2: Figures 1 to 9 As shown, compared with Example 1, another embodiment of the present invention is: an auxiliary shaft 502 is rotatably connected to one side of the fixed frame 3, the upper end of the auxiliary shaft 502 is covered with a connecting track 501, and the other end of the connecting track 501 is covered on the surface of the water pipe 41, the lower end of the auxiliary shaft 502 is provided with an auxiliary gear 504, and one side of the driving block 514 is provided with a tooth plate 505, and the tooth plate 505 is engaged with the auxiliary gear 504 during operation.

[0041] Specifically, by setting an auxiliary shaft 502, when the driving block 514 drives the first placement frame 509 to replace the activated carbon plate 44, the tooth plate 505 on one side of the driving block 514 will engage with the auxiliary gear 504, thereby driving the auxiliary gear 504 to rotate. At the same time, the auxiliary gear 504 will drive the water pipe 41 to rotate through the connecting track 501, thereby automatically switching the direction of the water pipe 41.

[0042] Working principle: During treatment, the wastewater is first passed through a screen to remove the larger particles of suspended matter and debris inside, and then the wastewater with impurities removed is passed into the water pipe 41. Since the end of the water pipe 41 at this time points to the inside of one of the reaction cylinders 42, and the second placement frame 516 is holding an activated carbon plate 44 and is located at the lower end of the reaction cylinder 42, the wastewater entering the reaction cylinder 42 will come into contact with the activated carbon plate 44. The activated carbon plate 44 has a good pore structure. When the wastewater passes through these pores, pollutant molecules such as heavy metal ions will be adsorbed on the surface and pores of the activated carbon plate 44. Then the treated wastewater will pass through the activated carbon plate 44 into the interior of the collection cylinder 43 for deep treatment. However, as the use time increases, the adsorption capacity of the activated carbon plate 44 gradually becomes saturated. At this time, the driving block 514 and the sliding frame 510 are started, and the driving block 514 will drive the second placement frame 516 to slide on the surface of the sliding rod 506, thereby transferring the saturated activated carbon plate 44 and driving The toothed plate 505 on one side of the block 514 will mesh with the auxiliary gear 504, thereby driving the auxiliary gear 504 to rotate. At the same time, the auxiliary gear 504 will drive the water pipe 41 to rotate through the connecting track 501, thereby automatically switching the direction of the water pipe 41, so that the wastewater can be passed into the interior of another reaction tube 42 for treatment, ensuring that the wastewater treatment can be carried out continuously, and the sliding frame 510 will slide on the inner wall of the slide rail 513 and drive the first placement frame 509 to move together. Since the middle part of the slide 512 is designed to drop, when the first placement frame 509 moves to the inclined position of the inner wall of the slide 512, the first placement frame 509 will move horizontally and vertically on the surface of the lifting rod 511 at the same time, thereby adjusting the height of the first placement frame 509 itself. When the first placement frame 509 drives the new activated carbon plate 44 to move to the lower end of the reaction tube 42, the second placement frame 516 also moves with the saturated activated carbon plate 44 to the initial position of the first placement frame 509, thereby completing the replacement process.

[0043] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device for scrap metal recycling, characterized by: The invention comprises a base frame (1), a reaction frame (2) is provided at the upper end of the base frame (1), a cover plate (6) is provided at the upper end of the reaction frame (2), a fixing frame (3) is provided on one side of the base frame (1), a replacement structure (5) is provided inside the fixing frame (3), and a reaction structure (4) is provided inside both the base frame (1) and the reaction frame (2); The reaction structure (4) includes: a water pipe (41), the water pipe (41) being rotatably connected to the surface of the cover plate (6), and one end of the water pipe (41) extending into the interior of the reaction frame (2); Reaction cylinders (42), two of the reaction cylinders (42) are arranged inside the reaction frame (2); A collecting cylinder (43), wherein two collecting cylinders (43) are provided at the lower end of the reaction frame (2), and an activated carbon plate (44) is provided between the reaction cylinder (42) and the collecting cylinder (43); The replacement structure (5) comprises: a partition (503), the partition (503) being provided at the lower end of the reaction frame (2), and the partition (503) being located between the two collecting cylinders (43); A chute (512), the chute (512) being provided on both sides of the partition (503); A first placement frame (509), wherein the first placement frame (509) is slidably connected to the interior of the chute (512), and an activated carbon plate (44) is placed on the upper end of the first placement frame (509); A second placement frame (516), the second placement frame (516) is slidably connected to the upper end of the partition (503), and the second placement frame (516) is located at the lower end of the reaction cylinder (42) in an initial state, and an activated carbon plate (44) is placed at the upper end of the second placement frame (516).

2. The wastewater treatment device for scrap metal recycling according to claim 1, characterized in that: The replacement structure (5) further includes: A slide rail (513), the slide rail (513) being provided at the lower end of the slide groove (512) on the side wall of the partition (503); A sliding frame (510), the sliding frame (510) being slidably connected to the inner wall of the sliding rail (513); A lifting rod (511), wherein the lifting rod (511) is provided at the upper end of the sliding frame (510), and the first placement frame (509) is slidably connected to the surface of the lifting rod (511); A sliding rod (506), the sliding rod (506) being arranged on one side of the fixed frame (3); A driving block (514), wherein the driving block (514) is slidably connected to the surface of the sliding rod (506), and the driving block (514) is connected to the second placement frame (516).

3. The wastewater treatment device for scrap metal recycling according to claim 2, characterized in that: The surfaces of the first placement frame (509) and the second placement frame (516) are both hollowed out.

4. The wastewater treatment device for scrap metal recycling according to claim 3, characterized in that: A rotating piece (519) is provided at one end of the first placement frame (509) close to the partition (503), and the rotating piece (519) rotates on the inner wall of the sliding groove (512).

5. The wastewater treatment device for scrap metal recycling according to claim 4, characterized in that: A fixing buckle (517) is provided on the inner wall of the sliding groove (512), and the fixing buckle (517) is in contact with the rotating piece (519).

6. The wastewater treatment device for scrap metal recycling according to claim 4, characterized in that: One end of each of the first placement frame (509) and the second placement frame (516) is provided with a contact strip (507), and the contact strip (507) contacts one side of the activated carbon plate (44).

7. The wastewater treatment device for scrap metal recycling according to claim 6, characterized in that: A slot (45) is provided inside the activated carbon plate (44), a limiting plate (508) is provided on one side of the reaction frame (2), a blocking block (515) is provided on the surface of the limiting plate (508), and the blocking block (515) slides on the inner wall of the slot (45).

8. The wastewater treatment device for scrap metal recycling according to claim 1, characterized in that: One end of the water pipe (41) is aligned with the inner wall of the reaction cylinder (42) during operation.

9. The wastewater treatment device for scrap metal recycling according to claim 6, characterized in that: The surfaces of the first placement frame (509) and the second placement frame (516) are both provided with anti-slip pads (518), and the anti-slip pads (518) are in contact with the activated carbon plate (44).

10. The wastewater treatment device for scrap metal recycling according to claim 2, characterized in that: An auxiliary shaft (502) is rotatably connected to one side of the fixed frame (3); a connecting track (501) is sleeved on the upper end of the auxiliary shaft (502); and the other end of the connecting track (501) is sleeved on the surface of the water pipe (41); an auxiliary gear (504) is provided at the lower end of the auxiliary shaft (502); a tooth plate (505) is provided on one side of the driving block (514), and the tooth plate (505) is engaged with the auxiliary gear (504) during operation.

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