A waste recovery device for metal surface treatment

Abstract

The present application relates to the technical field of metal surface waste treatment, and particularly relates to a waste recovery device for metal surface treatment, which comprises a machine body, a sealing cover is arranged on the top of the machine body, a stirring shaft is arranged in the machine body, and the waste recovery device further comprises: a lifting shell which is arranged on the top of the stirring shaft in a liftable manner; and a vibrating screen which is arranged on the top of the machine body and is used for vibrating and discharging the poured lime powder, wherein the vibrating screen and the flow guide ring cooperate to realize uniform dispersion and premixing of the lime powder, the vibrating screen is used for vibrating and discharging the poured lime powder, the phenomenon of lime agglomeration caused by excessive discharge of the lime powder from one side is effectively avoided, the flow guide ring is used to prolong the falling path of the lime powder, the lime powder and the water flowing along the wall have more sufficient contact time, the generation of large-particle lime agglomerates is reduced from the source, the mixing quality of the subsequent lime slurry is significantly improved, and stable medicament guarantee is provided for the subsequent neutralization reaction of the metal surface treatment wastewater.

Description

Technical Field

[0001] This invention relates to the field of metal surface waste treatment technology, and more particularly to a waste recycling device for metal surface treatment. Background Technology

[0002] In the field of metal surface treatment, such as electroplating, anodizing, pickling and phosphating processes, a large amount of wastewater containing heavy metal ions and acid and alkali pollutants is generated. In order to meet national environmental protection emission standards, it is usually necessary to add alkaline neutralizing agents to such wastewater for coagulation and sedimentation treatment.

[0003] Lime is one of the most commonly used neutralizing agents in industry due to its low cost and wide availability of raw materials. However, lime powder is extremely susceptible to moisture absorption during storage and addition, and when mixed with water, it is often accompanied by a violent exothermic reaction and agglomeration. If lime powder is not dispersed in time after being added to water, the calcium hydroxide on the surface will quickly become saturated and crystallize, forming dense "lime lumps" or "fish-eye" shaped particles. These particles contain undissolved dry powder inside, which is difficult to completely disperse with conventional stirring blades, resulting in low agent utilization and affecting the neutralization effect of subsequent wastewater treatment.

[0004] Therefore, how to provide a waste recycling device for metal surface treatment is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a waste recycling device for metal surface treatment, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a waste recycling device for metal surface treatment, comprising a body, a sealing cover on the top of the body, a stirring shaft inside the body, and further comprising: The lifting housing can be lifted and positioned at the top of the stirring shaft; A vibrating screen, located at the top of the machine body, vibrates and discharges the poured lime powder. The guide ring is set below the vibrating screen. The lime powder that is fed by the vibrating screen falls into the inner side of the guide ring and flows down along the inner wall of the guide ring. A deformable ring sleeve is set at the bottom inside the flow guide ring sleeve. The deformable ring sleeve is made of elastic material, and the other side of the deformable ring sleeve is in contact with the surface of the lifting housing.

[0007] Furthermore, a lifting ring is provided on the top of the machine body, and a lifting lug is provided on the top of the lifting ring. The vibrating screen is located at the bottom inside the lifting ring, and a limit block is provided in the middle of the top of the vibrating screen. A vibrating motor is located inside the limit block.

[0008] Furthermore, a water inlet hole is provided on the top of the guide ring sleeve on the outer side of the machine body, and a water pipe is installed in the water inlet hole. The water pipe is connected to an external water source, and the water flowing through the water pipe can flow downward on the inner wall of the guide ring sleeve.

[0009] Furthermore, an intercepting ring is provided at the bottom of the inner sleeve of the guide ring, and a through-hole is provided on the surface of the intercepting ring. After the water and lime powder are mixed to form a lime powder slurry, it can flow downward through the water leakage groove.

[0010] Furthermore, an elastic component is provided in the middle of the bottom of the lifting housing, and the lifting housing is slidably connected to the stirring shaft through the elastic component.

[0011] Furthermore, the inner wall of the lifting housing is provided with an expansion assembly, and an arc-shaped striking head is connected to the outside of the expansion assembly. The arc-shaped striking head abuts against the side of the deformable ring sleeve away from the guide ring sleeve.

[0012] Furthermore, the elastic component includes a spring, the top of which is connected to a connecting seat, the top of which is connected to the bottom of the lifting housing, and the spring is located on the top of the outer side of the stirring shaft.

[0013] Furthermore, the expansion assembly includes a second spring, with a connecting seat second at one end away from the stirring shaft, and the other end of the connecting seat second penetrating the lifting housing and extending to the outside of the lifting housing to connect with the arc-shaped striking head.

[0014] Furthermore, a drive motor is installed at the bottom of the machine body, and the drive motor is connected to the bottom of the stirring shaft. The top outer ring of the guide ring is fitted to the inner wall of the machine body.

[0015] Furthermore, the bottom of the lap ring sleeve is provided with a connecting post, and the lap ring sleeve is connected to the guide ring sleeve through the connecting post. The outer side of the machine body is provided with a liquid extraction port, which is connected to an external liquid extraction component.

[0016] Furthermore, it also includes a feeding mechanism, which consists of a vibrating screen, a connecting column, a guide ring sleeve, a deformable ring sleeve, and an intercepting ring; The vibrating screen is connected to the bottom of the overlapping ring sleeve, the connecting column is fixedly connected to the bottom of the overlapping ring sleeve, the top surface of the guide ring sleeve is connected to the bottom of the connecting column, the intercepting ring is fixedly connected to the bottom of the guide ring sleeve, and the deformable ring sleeve is connected to the side of the intercepting ring sleeve away from the guide ring sleeve.

[0017] Furthermore, it also includes a lifting mechanism, which consists of a lifting housing, a protective housing, a follower housing, a spring, and a connecting seat. The following housing is fixedly connected to the top of the stirring shaft, the spring is fixedly connected to the bottom of the following housing, the top of the following housing is fixedly connected to the connecting seat, the top of the connecting seat is fixedly connected to the bottom of the lifting housing, and the bottom of the lifting housing is fixedly connected to the protective housing on the outside of the connecting seat. When the protective housing is raised or lowered, the following housing slides and rises relative to the inner wall of the protective housing. The spring has a circular groove to accommodate the movement of the spring and the stirring shaft. The connecting seat consists of an upper rod and a lower connecting disc. The surface of the following housing has a lifting groove to accommodate the movement of the connecting seat rod. The connecting seat passes through the lifting groove and extends to the top of the following housing to connect with the bottom of the lifting housing.

[0018] Furthermore, it also includes a follower mechanism, which consists of a housing, a second spring, a second connecting seat, and an arc-shaped striking head; The storage housing is fixedly connected to the inner wall of the inclined surface of the lifting housing. A second spring is fixedly connected to the side of the storage housing away from the lifting housing. A second connecting seat is fixedly connected to the other end of the second spring. The other end of the second connecting seat passes through the inclined surface of the lifting housing and extends to the outside of the lifting housing, where it is fixedly connected to the arc-shaped striking head.

[0019] The beneficial effects of this invention are: 1. This invention achieves uniform dispersion and premixing of lime powder through the combination of a vibrating screen and a guide ring. The vibrating screen vibrates the lime powder during feeding, effectively avoiding lime agglomeration caused by excessive feeding on one side. The guide ring extends the falling path of the lime powder, allowing for more contact time between the lime powder and the water flowing down the wall. This reduces the generation of large lime clumps from the source, significantly improves the mixing quality of the subsequent lime slurry, and provides a stable reagent guarantee for the subsequent neutralization reaction of metal surface treatment wastewater. 2. This invention achieves automatic interception and buffering of lime clumps by using a deformable ring sleeve in conjunction with a lifting shell. During the feeding process, under the combined action of water flushing and the weight of the lifting shell, the lifting shell adaptively moves downward, widening the gap with the guide ring sleeve and forming a buffer area to accommodate lime clumps, preventing undissolved particles from falling directly to the bottom and causing sedimentation. This design effectively solves the problem of clogging the filter structure due to the instantaneous agglomeration of lime powder in traditional mixing devices, ensuring smooth flow of slurry. 3. In this invention, the continuous contact and striking action of the arc-shaped striking head in the follow-up mechanism effectively prevents material adhesion and filter clogging on the surface of the deformable ring sleeve. When the stirring shaft drives the lifting housing to rotate, the arc-shaped striking head continuously changes the contact point with the deformable ring sleeve, generating high-frequency micro-vibration, which causes the lime particles attached to the deformable ring sleeve and the water leakage groove of the intercepting ring to fall off and redistribute, ensuring that the lime clumps can be evenly distributed between the guide ring sleeve and the deformable ring sleeve, avoiding blockage that makes it difficult for the mixed slurry to pass through, and ensuring the quality of the mixed lime slurry. 4. In this invention, when feeding and water supply are stopped, the lifting shell moves upward under the action of the spring's rebound force, reducing the distance between it and the guide ring sleeve. This forces the deformable ring sleeve to deform and generate squeezing force. Combined with the arc-shaped striking head thrown out under the action of centrifugal force, the water trapped in the lime clumps is squeezed out and flows back to the slurry on the lower side through the water leakage channel. This achieves solid-liquid separation while avoiding material waste. It effectively prevents the damp lime clumps from hardening and scaling inside the equipment. Furthermore, by setting the lifting lugs on the ring sleeve, the intercepted lime clump particles can be completely removed, reducing the maintenance difficulty and downtime of the device. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a waste recycling device for metal surface treatment proposed in this invention; Figure 2 This is a schematic diagram of the structure of the lap ring sleeve of a waste recycling device for metal surface treatment proposed in this invention; Figure 3 This is a schematic diagram of the internal structure of a waste recycling device for metal surface treatment proposed in this invention; Figure 4 This is a schematic diagram of the connecting column structure of a waste recycling device for metal surface treatment proposed in this invention; Figure 5 This is an enlarged structural diagram of the interception ring of a waste recycling device for metal surface treatment proposed in this invention; Figure 6 This is an enlarged schematic diagram of the two springs in a waste recycling device for metal surface treatment proposed in this invention.

[0021] In the diagram: 1. Machine body; 2. Sealing cover; 3. Overlapping ring sleeve; 4. Stirring shaft; 5. Feeding mechanism; 501. Vibrating screen; 502. Connecting column; 503. Guide ring sleeve; 504. Deformable ring sleeve; 505. Intercepting ring; 6. Lifting mechanism; 601. Lifting housing; 602. Protective housing; 603. Follower housing; 604. Spring one; 605. Connecting seat one; 7. Follower mechanism; 701. Storage housing; 702. Spring two; 703. Connecting seat two; 704. Arc-shaped striking head. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0023] Example 1: Reference Figure 1-6 The present invention provides a technical solution: a waste recycling device for metal surface treatment, comprising a body 1, a sealing cover 2 on the top of the body 1 to prevent dust generation during the stirring of lime powder, a stirring shaft 4 inside the body 1 to agitate the mixed lime slurry and prevent sedimentation and separation, and further comprising: The lifting housing 601 is lifted and positioned on top of the stirring shaft 4, and rotates synchronously within the machine body 1 as the stirring shaft 4 rotates. Vibrating screen 501 is set at the top inside the machine body 1 to vibrate and discharge the poured lime powder, avoiding the generation of large lime lumps due to excessive discharge from one side at the same time. The guide ring 503 is set below the vibrating screen 501. The lime powder that is fed by the vibration of the vibrating screen 501 falls into the inner side of the guide ring 503 and flows down along the inner wall of the guide ring 503, extending the falling path of the lime powder and increasing the contact time between the lime powder and the water entering the body. A deformable ring 504 is disposed at the bottom of the guide ring 503. The deformable ring 504 is made of elastic material. The other side of the deformable ring 504 is in contact with the surface of the lifting housing 601. The deformable ring 504 is attached to the outside of the lifting housing 601 and can be continuously attached as the lifting housing 601 rises and falls.

[0024] Those skilled in the art will foresee that any structure capable of controlling the lifting housing 601 to move up and down outside the stirring shaft 4 should fall within the protection scope of this invention.

[0025] Example 2: Reference Figure 1-5Based on Embodiment 1, the present invention provides a technical solution: a ring sleeve 3 is mounted on the top of the machine body 1, a lifting lug is provided on the top of the ring sleeve 3, a vibrating screen 501 is located at the bottom inside the ring sleeve 3, a limiting block is provided in the middle of the top of the vibrating screen 501, and a vibrating motor is provided inside the limiting block.

[0026] By setting up lifting lugs, after the lime powder is mixed, the entire assembly, including the lap ring 3 and the lower side assembly, can be lifted.

[0027] A water inlet is provided on the top of the guide ring 503 on the outer side of the body 1. A water pipe is installed in the water inlet and is connected to an external water source. The water flowing through the water pipe can flow downward on the inner wall of the guide ring 503.

[0028] An intercepting ring 505 is provided at the bottom of the inner part of the guide ring sleeve 503. A through-hole water leakage groove is provided on the surface of the intercepting ring 505. After the water flows and lime powder mix to form lime powder slurry, it can flow downward through the water leakage groove. A drive motor is installed at the bottom of the machine body 1. The drive motor is connected to the bottom of the stirring shaft 4. The top outer ring of the guide ring 503 is attached to the inner wall of the machine body 1.

[0029] The bottom of the lap ring sleeve 3 is provided with a connecting post 502. The lap ring sleeve 3 is connected to the guide ring sleeve 503 through the connecting post 502. The outer side of the body 1 is provided with a liquid extraction port, which is connected to the external liquid extraction component.

[0030] It also includes a feeding mechanism 5, which consists of a vibrating screen 501, a connecting column 502, a guide ring 503, a deformable ring 504, and an intercepting ring 505. Among them, the vibrating screen 501 is connected to the bottom of the overlapping ring sleeve 3, the connecting column 502 is fixedly connected to the bottom of the overlapping ring sleeve 3, the top surface of the guide ring sleeve 503 is connected to the bottom of the connecting column 502, the intercepting ring 505 is fixedly connected to the bottom of the guide ring sleeve 503, and the deformable ring sleeve 504 is connected to the side of the intercepting ring 505 away from the guide ring sleeve 503.

[0031] Example 3: Reference Figure 6 Based on Embodiment 2, the present invention provides a technical solution: an elastic component is provided in the middle of the bottom of the lifting housing 601, and the lifting housing 601 is slidably connected to the stirring shaft 4 through the elastic component.

[0032] An expansion assembly is provided on the inner wall of the lifting housing 601. An arc-shaped striking head 704 is connected to the outside of the expansion assembly. The arc-shaped striking head 704 abuts against the side of the deformable ring 504 away from the guide ring 503.

[0033] The elastic component includes a spring 604, with a connecting seat 605 connected to the top of the spring 604. The top of the connecting seat 605 is connected to the bottom of the lifting housing 601. The spring 604 is located on the top of the outer side of the stirring shaft 4.

[0034] The expansion assembly includes a second spring 702. One end of the second spring 702 away from the stirring shaft 4 is connected to a second connecting seat 703. The other end of the second connecting seat 703 passes through the lifting housing 601 and extends to the outside of the lifting housing 601 to be connected to the arc-shaped striking head 704.

[0035] It also includes a lifting mechanism 6, which consists of a lifting housing 601, a protective housing 602, a follower housing 603, a spring 604, and a connecting seat 605; The following is a series of components: a follower housing 603 is fixedly connected to the top of the stirring shaft 4; a spring 604 is fixedly connected to the bottom of the follower housing 603; the top of the follower housing 603 is fixedly connected to a connecting seat 605; the top of the connecting seat 605 is fixedly connected to the bottom of the lifting housing 601; the bottom of the lifting housing 601 is fixedly connected to the protective housing 602 outside the connecting seat 605; when the protective housing 602 is raised or lowered, the follower housing 603 slides and rises relative to the inner wall of the protective housing 602; a circular groove is provided on the spring 604 to accommodate the movement of the spring 604 and the stirring shaft 4; the connecting seat 605 consists of an upper rod and a lower connecting disc; a lifting groove is provided on the surface of the follower housing 603 to accommodate the movement of the connecting seat 605 rod; the connecting seat 605 passes through the lifting groove and extends to the top of the follower housing 603 to connect with the bottom of the lifting housing 601.

[0036] It also includes a follower mechanism 7, which consists of a housing 701, a second spring 702, a second connecting seat 703, and an arc-shaped striking head 704; The storage housing 701 is fixedly connected to the inner wall of the inclined surface of the lifting housing 601. A second spring 702 is fixedly connected to the side of the storage housing 701 away from the lifting housing 601. A second connecting seat 703 is fixedly connected to the other end of the second spring 702. The other end of the second connecting seat 703 passes through the inclined surface of the lifting housing 601 and extends to the outside of the lifting housing 601, where it is fixedly connected to the arc-shaped striking head 704.

[0037] Working principle: When treating wastewater generated after metal surface treatment, lime powder needs to be mixed and the mixed lime slurry is injected into the wastewater for treatment. The connecting ring sleeve 3 is installed from top to bottom onto the top of the machine body 1, so that the lower components are located inside the machine body 1. When the guide ring sleeve 503 moves downward, the deformable ring sleeve 504 on the outer side of the guide ring sleeve 503 contacts and adheres to the outer surface of the lifting shell 601 inside the machine body 1. Lime powder is fed into the connecting ring sleeve 3 from the top of the machine body 1, and the vibration motor inside the connecting ring sleeve 3 is controlled. The machine operates by vibrating the screen 501 to feed lime powder. The lime powder falls through the gap between the machine body 1 and the limiting block at the top of the screen 501. Simultaneously, water is pumped in from outside to the top of the guide ring 503. Upon contact with the lime powder, the water is drawn into the inner wall of the guide ring 503 and flows downwards. The resulting lime slurry flows downwards through the drainage channel on the intercepting ring 505. The continuous influx of water reduces lime agglomeration, even if a small amount of lime agglomerates. The lime clumps, under the continuous scouring of the water, are pushed to the inclined surface of the deformable ring 504. The combined weight of the water, lime powder, lime clumps, and the lifting housing 601 causes the lifting housing 601 to move downwards from the top of the stirring shaft 4. Simultaneously, the lower connecting seat 605 of the lifting housing 601 compresses the spring 604, causing the lifting housing 601 to move downwards as a whole within the machine body 1. This increases the distance between the lifting housing 601 and the guide ring 503, allowing it to accommodate more lime clumps and simultaneously filter them through the guide ring 503 and the inclined surface of the deformable ring 504. On the adjacent side of the deformable ring sleeve 504, the stirring shaft 4 is controlled to work during the feeding process. When the stirring shaft 4 is working, the top lifting housing 601 of the stirring shaft 4 rotates and continuously changes the contact point of the arc-shaped striking head 704 on the outer side of the lifting housing 601. Therefore, it can make continuous contact and striking on the deformable ring sleeve 504, avoiding excessive lime particles adhering to the surface of the deformable ring sleeve 504, which would cause the water leakage groove located above the intercepting ring 505 on its lower side to become congested. It can fully and evenly distribute the generated lime particles between the deformable ring sleeve 504 and the guide ring sleeve 503. After stopping the feeding of lime powder, the inflow of water from the outside is simultaneously shut off. The last flowing water washes away the lime clumps, causing them to adhere to the outside of the deformable ring 504. Under the influence of gravity, the water flows downward through the drain groove on the intercepting ring 505. Excess lime clumps remain on the surface of the deformable ring 504 and above the intercepting ring 505. Since the feeding of lime powder and water has stopped, the pressure on the lifting housing 601 decreases, causing the spring 604 to rebound and push the lifting housing 601 upward within the machine body 1. This causes the lifting housing 601 to compress the deformable ring 504. Simultaneously, as the lifting housing 601 rises, the distance between it and the guide ring 503 shortens, causing the deformable ring 504 to passively deform. The angle between the deformable ring 504 and the guide ring 503 decreases. As the pressure on the outside of the lifting housing 601 decreases, the deformable ring 504 loses its arc. The arc-shaped striking head 704 effectively generates compression. While the bottom of the stirring shaft 4 agitates the lime slurry to prevent sedimentation, the lifting housing 601 and the arc-shaped striking head 704 work separately under the action of centrifugal force. The lifting housing 601 rises to the maximum stroke of the connecting seat 605 at the top of the stirring shaft 4. At this time, the arc-shaped striking head 704 moves synchronously to the top of the outer side of the deformable ring 504. Under the action of centrifugal force, the arc-shaped striking head 704 is thrown outward, compressing the deformable ring 504, causing the deformable ring to... The sleeve 504 is attached to the adjacent side of the guide ring sleeve 503, and the lime clump particles in the middle are squeezed to squeeze out the water mixed in the lime clump particles and drip down through the water leakage channel. At the same time, the arc-shaped striking head 704 continuously squeezes the outside of the deformable ring sleeve 504, so that the deformable ring sleeve 504 is attached to the guide ring sleeve 503, and the lime clump particles are squeezed to adhere to the surface of the guide ring sleeve 503. Finally, the lime slurry is extracted and discharged into the metal surface treatment wastewater through the liquid extraction component on the outside of the machine body 1. After the lime slurry in the machine body 1 is extracted, the stirring shaft 4 is closed and the sealing cover 2 on the top of the machine body 1 is opened. The lower part of the entire assembly is lifted out of the machine body 1 by the lifting lug on the ring sleeve 3. During this process, the deformable ring sleeve 504 and the guide ring sleeve 503 adsorb lime clumps and maintain their position, so that the lime clumps generated during mixing can be completely removed.

[0038] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A waste recycling device for metal surface treatment, comprising a body (1), characterized in that: The machine body (1) is provided with a sealing cover (2) on the top, and a stirring shaft (4) is provided inside the machine body (1). It also includes: The lifting housing (601) is vertically mounted on top of the stirring shaft (4); Vibrating screen (501) is set at the top inside the machine body (1) to vibrate and discharge the poured lime powder; The guide ring sleeve (503) is set below the vibrating screen (501). The lime powder that is fed by the vibration of the vibrating screen (501) falls into the inner side of the guide ring sleeve (503) and flows downward along the inner wall of the guide ring sleeve (503). A deformable ring sleeve (504) is disposed at the bottom of the guide ring sleeve (503). The deformable ring sleeve (504) is made of elastic material, and the other side of the deformable ring sleeve (504) is in contact with the surface of the lifting housing (601).

2. The waste recycling device for metal surface treatment according to claim 1, characterized in that: The machine body (1) is provided with a top ring sleeve (3), the top of the top ring sleeve (3) is provided with a lifting lug, the vibrating screen (501) is provided at the bottom inside the ring sleeve (3), and a limit block is provided in the middle of the top of the vibrating screen (501), and a vibrating motor is provided inside the limit block.

3. The waste recycling device for metal surface treatment according to claim 2, characterized in that: The outer side of the body (1) has a water inlet hole at the top of the guide ring sleeve (503), and a water pipe is installed in the water inlet hole. The water pipe is connected to an external water source, and the water flow through the water pipe can flow downward on the inner wall of the guide ring sleeve (503).

4. The waste recycling device for metal surface treatment according to claim 3, characterized in that: An intercepting ring (505) is provided at the bottom of the inner part of the guide ring sleeve (503). A through-hole water leakage groove is provided on the surface of the intercepting ring (505). After the water flows and lime powder are mixed to form lime powder slurry, it can flow downward through the water leakage groove.

5. A waste recycling device for metal surface treatment according to claim 4, characterized in that: The lifting housing (601) has an elastic component in the middle of its bottom, and the lifting housing (601) is slidably connected to the stirring shaft (4) through the elastic component.

6. A waste recycling device for metal surface treatment according to claim 5, characterized in that: The inner wall of the lifting housing (601) is provided with an expansion assembly, and an arc-shaped striking head (704) is connected to the outside of the expansion assembly. The arc-shaped striking head (704) abuts against the side of the deformable ring sleeve (504) away from the guide ring sleeve (503).

7. A waste recycling device for metal surface treatment according to claim 6, characterized in that: The elastic component includes a spring (604), the top of which is connected to a connecting seat (605), the top of which is connected to the bottom of the lifting housing (601), and the spring (604) is located on the top of the outer side of the stirring shaft (4).

8. A waste recycling device for metal surface treatment according to claim 7, characterized in that: The expansion assembly includes a second spring (702), one end of which is away from the stirring shaft (4) is connected to a second connecting seat (703), and the other end of the second connecting seat (703) passes through the lifting housing (601) and extends to the outside of the lifting housing (601) to be connected to the arc-shaped striking head (704).

9. A waste recycling device for metal surface treatment according to claim 8, characterized in that: The bottom of the machine body (1) is equipped with a drive motor, which is connected to the bottom of the stirring shaft (4). The top outer ring of the guide ring sleeve (503) is attached to the inner wall of the machine body (1).

10. A waste recycling device for metal surface treatment according to claim 9, characterized in that: The bottom of the lap ring sleeve (3) is provided with a connecting post (502), and the lap ring sleeve (3) is connected to the guide ring sleeve (503) through the connecting post (502). The outer side of the body (1) is provided with a liquid extraction port, which is connected to an external liquid extraction component.

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