Device for recovering suspended particles in regenerated plastic particle cleaning sewage

Abstract

The invention discloses a device for recovering suspended particles in regenerated plastic particle cleaning sewage, the device comprises a storage pool, the inner wall of the storage pool is rotatably connected with a reciprocating screw rod, and the inner wall of the storage pool is provided with a pushing mechanism for pushing sludge. The plastic suspended particle area in the sewage can be located above the sewage, purified water is located in the middle area, large impurities such as sludge are located at the bottom of the storage pool, the recovery speed of the device for the plastic suspended particles in the sewage can be increased, the recovery efficiency of the plastic suspended particles is improved, and the sewage treatment effect of the device can be improved. The viscosity of sewage can be reduced, the filtering and layering efficiency of the sewage can be improved, low-temperature freezing can be prevented when the device is used in a low-temperature environment, continuous operation of the device is guaranteed, the sewage treatment efficiency of the device is improved, and shutdown caused by blockage of the sewage device is reduced.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment and recycling, specifically relating to a device for recovering suspended particles from wastewater used for washing recycled plastic granules. Background Technology

[0002] Existing wastewater suspended particle recovery devices for recycled plastic pellet washing wastewater mostly adopt simple filtration or sedimentation methods, lacking an effective layered isolation structure. Suspended particles are easily agitated and resuspended by water flow, resulting in low separation efficiency. Furthermore, no heating device is installed. At low temperatures, the wastewater has high viscosity and oil is prone to solidification, leading to filter plate blockage and slow particle settling. At the same time, the strong colloidal stability makes it difficult for fine particles to flocculate and be retained, affecting the purity of the recovery and the continuity of treatment.

[0003] Patent CN206203911U discloses a device for recovering suspended particles from wastewater used in the washing of recycled plastic granules, relating to the field of wastewater treatment equipment for recycled plastics. It comprises a wastewater inlet pipe, a sedimentation tank, a clear water outlet pipe, and a clear water pool. The sedimentation tank consists of a suspended particle layer, a clear water layer, and a sludge sedimentation layer, arranged from top to bottom. The inlet of the wastewater inlet pipe is located above the suspended particle layer. The clear water outlet pipe has an inverted L-shaped structure, with its inlet extending vertically into the clear water layer. The inlet is located above the clear water tank. This patented device requires no equipment investment and relies solely on gravity settling and siphoning to separate suspended particles, clear water, and sludge from the wastewater used for washing recycled plastic granules. The separated clear water is then transported to the clear water tank to meet discharge requirements. However, during the stratification process, the device struggles to achieve precise stratification of the wastewater. Furthermore, after stratification, it is difficult to heat the suspended particle wastewater area, resulting in high viscosity and impacting the efficiency of subsequent suspended particle recovery and the overall wastewater treatment speed. Summary of the Invention

[0004] The purpose of this invention is to provide a device for recovering suspended particles in wastewater from the washing of recycled plastic granules, so as to solve the problem of recovering suspended particles in wastewater.

[0005] To achieve the above objectives, the present invention provides a device for recovering suspended particles from wastewater used in the washing of recycled plastic granules, comprising a storage tank, a reciprocating screw rotatably connected to the inner wall of the storage tank, a pushing mechanism for pushing sludge on the inner wall of the storage tank, a discharge mechanism for discharging wastewater on the inner wall of the storage tank, a movable block movably connected to the circumferential surface of the reciprocating screw, a filter layer plate fixedly connected to the inner wall of the movable block, a fixed frame fixedly connected to the top of the filter layer plate, a movable column slidably connected to the inner wall of the fixed frame, a connecting block fixedly connected to the right side of the movable column, and a roller rotatably connected to the circumferential surface of the connecting block. A guide block is fixedly connected to the inner wall of the moving column, a connecting T-block is fixedly connected to the circumferential surface of the moving column, a sealing block is fixedly connected to the inner wall of the connecting T-block, a sealing plate is slidably connected to the inner wall of the filter layer plate, a heating rod is fixedly connected to the inner wall of the filter layer plate, a waterproof controller is installed on the inner wall of the storage tank, and a motor is installed on the storage tank. This allows the filter layer plate to stratify the wastewater inside the storage tank, so that the area of ​​suspended plastic particles in the wastewater is located at the top, the clean water is in the middle area, and larger impurities such as sludge are located at the bottom of the storage tank. This operation can accelerate the recovery speed of suspended plastic particles in wastewater and improve the recovery efficiency of suspended plastic particles.

[0006] In one or more embodiments of the present invention, the reciprocating screw is fixedly connected to the output end of the motor, the moving block is slidably connected to the inner wall of the storage tank, the roller is in contact with the guide block, and the guide block is used to push the roller to move in the opposite direction. A spring is installed between the moving column and the fixed frame, and the spring is used to reset the moving column. This can accelerate the sewage treatment effect of the device, reduce the viscosity of sewage, improve the filtration and stratification efficiency of sewage, and prevent the device from freezing at low temperatures when used in low-temperature environments. This can ensure continuous operation of the equipment, improve the sewage treatment efficiency of the device, and reduce downtime caused by sewage equipment jamming.

[0007] In one or more embodiments of the present invention, the sealing block contacts the filter layer plate, the waterproof controller is located on the movement trajectory of the heating rod, and the waterproof controller is used to control whether the heating rod is started. A spring is installed between the sealing plate and the filter layer plate, and the sealing plate is used to increase the sealing performance between the parts in the storage tank. The rise of the fixed frame will drive the heating rod to move upward. At the same time, after the moving block moves upward a certain distance, the moving block will contact the switch of the waterproof controller. At this time, the moving block will continue to rise. The moving block can then pry open the waterproof controller and turn on the waterproof controller switch.

[0008] In one or more embodiments of the present invention, the pushing mechanism includes a fixing member, which is fixedly connected to the circumferential surface of the moving column. A connecting member is fixedly connected to the bottom of the fixing member, and a scraper is fixedly connected to the circumferential surface of the connecting member. This allows the scraper to scrape and push away debris particles in the opening area of ​​the filter layer plate in advance, preventing excessive debris particles from clogging the opening of the filter layer plate and avoiding affecting the sealing effect of the subsequent sealing block on the filter layer plate, thus preventing the upper and lower layers of sewage from mixing.

[0009] In one or more embodiments of the present invention, the pushing mechanism further includes a connecting groove block, which is fixedly connected to the bottom of the filter layer plate. A pull rod is rotatably connected to the circumferential surface of the connecting groove block. A guide slide is fixedly connected to the inner wall of the storage tank. A slider is slidably connected to the inner wall of the guide slide. A push plate is fixedly connected to the circumferential surface of the slider. A guide inclined plate is rotatably connected to the circumferential surface of the push plate via a torsion spring. This can improve the wastewater stratification treatment effect of the device. The push plate will push the sludge and larger sediments settled in the storage tank to move, which can speed up the sludge treatment speed of the device in wastewater, improve the sludge treatment efficiency of the device, and improve the stratification treatment accuracy of the device.

[0010] In one or more embodiments of the present invention, the scraper contacts the filter layer plate and is used to push and scrape away debris and particles at the opening of the filter layer plate. The pull rod is rotatably connected to the circumferential surface of the slider and is used to drive the slider to move. The push plate contacts the storage tank and is used to push the sludge inside the storage tank to move. During the downward movement of the filter layer plate, the filter layer plate will synchronously drive the connecting groove block to move. During the movement of the connecting groove block, the connecting groove block will synchronously drive the pull rod to move. During the downward movement of the pull rod, the pull rod will synchronously adjust its own angle.

[0011] In one or more embodiments of the present invention, the discharge mechanism includes a drain valve pipe, which is fixedly connected to the inner wall of the storage tank. A fixing rod is fixedly connected to the inner wall of the slider. A support block is fixedly connected to the bottom of the fixing rod. A reinforcing member is fixedly connected to the top of the fixing rod. A protective plate is fixedly connected to the front of the reinforcing member. A sealing ring is fixedly connected to the circumferential surface of the protective plate, allowing the operator to open the drain valve pipe and discharge the sludge in the storage tank. The design of the protective plate and the sealing ring prevents the operator from accidentally opening the drain valve pipe, causing unsettled sludge in the sewage to remain in the upper layer of the sewage.

[0012] In one or more embodiments of the present invention, the discharge mechanism further includes a liquid level sensor, which is fixedly connected to the inner wall of the storage tank. A float block is slidably connected to the inner wall of the storage tank. This can improve the accuracy of the device in treating sewage, enable real-time observation of the sewage treatment level, prevent sewage from being discharged in large or small volumes, which could affect the efficiency of subsequent sewage treatment, ensure that the sewage treatment volume is relatively consistent each time, and ensure the consistency of the device in treating sewage, avoiding related errors caused by the size of the sewage volume.

[0013] In one or more embodiments of the present invention, the drain valve pipe and the storage tank are fixedly connected by a control valve, the protective plate is in contact with the drain valve pipe and is used to seal the drain valve pipe to prevent leakage, the support block is slidably connected to the inner wall of the guide slide and is used to provide guidance and stability for the fixed rod, the fixed rod is in contact with the guide slide, after the plastic suspended particles are recycled, the movement of the slider will drive the fixed rod to move, the movement of the fixed rod will drive the support block to move, the support block will slide laterally on the inner wall of the guide slide, and the movement of the fixed rod will drive the reinforcing member to move.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This device for recovering suspended particles from wastewater treated with recycled plastic granules utilizes the coordinated movement of a storage tank, reciprocating screw, moving block, filter stratification plate, fixed frame, moving column, connecting block, rollers, guide block, connecting T-block, sealing block, sealing plate, heating rod, and waterproof controller. This allows the filter stratification plate to stratify the wastewater within the storage tank, placing suspended plastic particles at the top, clean water in the middle, and larger impurities such as sludge at the bottom. This operation accelerates the recovery speed and efficiency of suspended plastic particles from the wastewater, improves the wastewater treatment effect, reduces wastewater viscosity, enhances filtration and stratification efficiency, and prevents freezing in low-temperature environments. It ensures continuous operation, improves wastewater treatment efficiency, and reduces downtime caused by equipment jamming.

[0015] 2. This device for recovering suspended particles in wastewater from recycled plastic granules utilizes the coordinated movement of fixed components, connectors, scrapers, connecting troughs, guide slides, sliders, pull rods, push plates, and guide inclined plates. The scrapers pre-seal the filter plates, scraping and pushing away debris and particles from the openings. This prevents excessive fine particles from clogging the filter plates and avoids affecting the sealing effect of the sealing blocks, thus preventing mixing of upper and lower wastewater. The push plates also move sludge and larger sediments in the storage tank, accelerating sludge treatment and improving sludge processing efficiency and stratification accuracy.

[0016] 3. This suspended particle recovery device for wastewater from recycled plastic granule washing utilizes the coordinated movement of a drain valve, fixed rod, support block, reinforcing component, protective plate, sealing ring, level sensor, and float block. This allows the operator to open the drain valve, discharging sludge from the storage tank. The design of the protective plate and sealing ring prevents accidental opening of the drain valve, which would leave unsettled sludge in the upper layer of the wastewater. This improves the accuracy of wastewater treatment, allows real-time monitoring of the treated water level, and prevents the discharge of excessively large or small volumes of wastewater from affecting subsequent wastewater treatment efficiency. It ensures consistent wastewater treatment volume each time, guaranteeing uniform wastewater treatment and avoiding errors caused by varying wastewater volume. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a half-sectional view of the storage pool structure of the present invention; Figure 3 This is a schematic diagram of the reciprocating lead screw structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of the structure at point A in the middle; Figure 5 For the present invention Figure 3 Enlarged view of the structure at point B in the middle; Figure 6 This is a schematic diagram of the actuation mechanism of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of the structure at point C; Figure 8 This is a schematic diagram of the tie rod structure of the present invention; Figure 9 This is a schematic diagram of the emission mechanism of the present invention; Figure 10 This is a schematic diagram of the float block structure of the present invention.

[0018] Explanation of key figure labels: 1. Storage tank; 2. Reciprocating screw; 3. Pushing mechanism; 4. Discharge mechanism; 5. Moving block; 6. Filter layer plate; 7. Fixed frame; 8. Moving column; 9. Connecting block; 10. Roller; 11. Guide block; 12. Connecting T-block; 13. Sealing round block; 14. Sealing plate; 15. Heating rod; 16. Waterproof controller; 301. Fixing component; 302. Connecting component; 303. Scraper; 304. Connecting groove block; 305. Guide slide; 306. Sliding block; 307. Pull rod; 308. Push plate; 309. Guide inclined plate; 401. Drain valve pipe; 402. Fixed rod; 403. Support block; 404. Reinforcing component; 405. Protective plate; 406. Sealing ring; 407. Liquid level sensor; 408. Float block. Detailed Implementation

[0019] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0020] like Figures 1-10 As shown, one embodiment of the present invention is: a device for recovering suspended particles in wastewater from the washing of recycled plastic granules, comprising a storage tank 1, a reciprocating screw 2 rotatably connected to the inner wall of the storage tank 1, a pushing mechanism 3 for pushing sludge on the inner wall of the storage tank 1, a discharge mechanism 4 for discharging wastewater on the inner wall of the storage tank 1, a moving block 5 movably connected to the circumferential surface of the reciprocating screw 2, a filter layer plate 6 fixedly connected to the inner wall of the moving block 5, a fixing frame 7 fixedly connected to the top of the filter layer plate 6, and a sliding frame 7 on the inner wall of the fixing frame 7. A movable column 8 is connected to the storage tank 1. A connecting block 9 is fixedly connected to the right side of the movable column 8. A roller 10 is rotatably connected to the circumferential surface of the connecting block 9. A guide block 11 is fixedly connected to the inner wall of the storage tank 1. A connecting T-block 12 is fixedly connected to the circumferential surface of the movable column 8. A sealing round block 13 is fixedly connected to the inner wall of the connecting T-block 12. A sealing plate 14 is slidably connected to the inner wall of the filter layer plate 6. A heating rod 15 is fixedly connected to the inner wall of the filter layer plate 6. A waterproof controller 16 is installed on the inner wall of the storage tank 1. A motor is installed on the storage tank 1. Before using the device, the operator needs to first discharge the wastewater from washing plastic particles into storage tank 1. After discharge, the wastewater needs to be allowed to stand for a period of time. During this settling process, the sludge and larger impurities in the wastewater will settle to the bottom of storage tank 1, while the suspended plastic particles will rise and float. At this time, the motor will start, and the output end of the motor will drive the reciprocating screw 2 to rotate. The rotation of the reciprocating screw 2 will drive the moving block 5 to rotate. However, the moving block 5 is sliding on the inner wall of storage tank 1. The storage tank 1 will cause the moving block 5 to move up and down only through the reciprocating groove on the surface of the reciprocating screw 2 during the rotation of the reciprocating screw 2. When the moving block 5 rises, it will simultaneously drive the filter layer plate 6 to rise. During the rise of the filter layer plate 6, the filter layer plate 6 will drive the fixed frame 7 to move. The movement of the fixed frame 7 will drive the moving column 8 to move. The movement of the moving column 8 will drive the connecting block 9 to rise. The rise of the connecting block 9 will simultaneously drive the fixed frame 7 to move. The roller 10 is moved, and during the movement, the roller 10 will come into contact with the guide block 11. At this time, the guide block 11 will push the roller 10 to move laterally through its inclined surface. The movement of the roller 10 will drive the connecting block 9 to move. The lateral movement of the connecting block 9 will drive the moving column 8 to move laterally. The movement of the moving column 8 will drive the connecting T block 12 to move. The movement of the connecting T block 12 will drive the sealing circle block 13 to move. After moving a certain distance, the sealing circle block 13 can seal the filter openings on the surface of the filter layer plate 6. At this time, all the openings of the filter layer plate 6 are closed. At this time, the filter layer plate 6 can stratify the sewage inside the storage tank 1, so that the area of ​​suspended plastic particles in the sewage is located at the top of the sewage, the clean water is in the middle area, and the larger impurities such as sludge are located at the bottom of the storage tank 1. This operation can accelerate the recovery speed of suspended plastic particles in the sewage, improve the recovery efficiency of suspended plastic particles, and accelerate the sewage treatment effect of the device. The reciprocating screw 2 is fixedly connected to the output end of the motor. The moving block 5 is slidably connected to the inner wall of the storage tank 1. The roller 10 is in contact with the guide block 11, and the guide block 11 is used to push the roller 10 to move in the opposite direction. A spring is installed between the moving column 8 and the fixed frame 7, and the spring is used to reset the moving column 8. The sealing block 13 is in contact with the filter layer plate 6. The waterproof controller 16 is located on the movement trajectory of the heating rod 15, and the waterproof controller 16 is used to control whether the heating rod 15 is started. A spring is installed between the sealing plate 14 and the filter layer plate 6, and the sealing plate 14 is used to increase the sealing performance between the parts in the storage tank 1. When the device is in use, the rising of the fixed frame 7 will cause the heating rod 15 to move upward. At the same time, after the moving block 5 moves upward a certain distance, it will contact the switch of the waterproof controller 16. The moving block 5 will continue to rise and can then open the waterproof controller 16. This allows the heating rod 15 to start simultaneously during the process of the filter layer plate 6 stratifying the sewage. The heating rod 15 can heat the area above the sewage and the filter layer plate 6, which can reduce the viscosity of the sewage and improve the filtration and stratification efficiency. It can also prevent the device from freezing in low-temperature environments, ensuring continuous operation of the equipment, improving the sewage treatment efficiency of the device, and reducing downtime caused by sewage equipment jamming. Overall working principle: The filter layer plate 6 can stratify the sewage inside the storage tank 1, so that the area of ​​suspended plastic particles in the sewage is located on top, the clean water is in the middle area, and larger impurities such as sludge are located at the bottom of the storage tank 1. This operation can accelerate the recovery speed of suspended plastic particles in the sewage, improve the recovery efficiency of suspended plastic particles, and accelerate the sewage treatment effect of the device. The heating rod 15 can heat the area above the sewage and the filter layer plate 6, which can reduce the viscosity of the sewage, improve the filtration and stratification efficiency of the sewage, and prevent the device from freezing at low temperatures. This ensures continuous operation of the equipment, improves the sewage treatment efficiency of the device, and reduces the downtime caused by sewage equipment jamming.

[0021] Please see Figure 1-10 Figure 1 shows that, based on the above embodiments, in another embodiment of the present invention, the pushing mechanism 3 includes a fixing member 301, the fixing member 301 is fixedly connected to the circumferential surface of the moving column 8, the bottom of the fixing member 301 is fixedly connected to a connecting member 302, and the circumferential surface of the connecting member 302 is fixedly connected to a scraper 303. When the device is in use, the moving column 8 moves synchronously, which in turn drives the fixing part 301 to move. The movement of the fixing part 301 drives the connecting part 302 to move, and the movement of the connecting part 302 drives the scraper 303 to move. During the movement of the scraper 303, the scraper 303 can scrape and push the debris and particles in the opening area of ​​the filter layer plate 6 in advance of the sealing round block 13. This can prevent the opening area of ​​the filter layer plate 6 from having too much debris and particles, which could cause the opening of the filter layer plate 6 to become blocked. This avoids affecting the sealing effect of the sealing round block 13 on the filter layer plate 6, which could cause the upper and lower sewage to mix. This can improve the sewage stratification treatment effect of the device. The pushing mechanism 3 also includes a connecting groove block 304, which is fixedly connected to the bottom of the filter layer plate 6. A pull rod 307 is rotatably connected to the circumferential surface of the connecting groove block 304. A guide slide 305 is fixedly connected to the inner wall of the storage tank 1. A slider 306 is slidably connected to the inner wall of the guide slide 305. A push plate 308 is fixedly connected to the circumferential surface of the slider 306. A guide inclined plate 309 is rotatably connected to the circumferential surface of the push plate 308 through a torsion spring. A scraper 303 contacts the filter layer plate 6 and is used to push and scrape away debris and particles at the opening of the filter layer plate 6. A pull rod 307 is rotatably connected to the circumferential surface of the slider 306 and is used to drive the slider 306 to move. A push plate 308 contacts the storage tank 1 and is used to push the sludge inside the storage tank 1 to move. When the device is in use, as the filter layer plate 6 moves downward, it simultaneously moves the connecting trough block 304. This movement in turn moves the pull rod 307. As the pull rod 307 moves downward, it adjusts its angle, causing it to tilt. This tilting of the pull rod 307 causes the slider 306 to move laterally. The lateral movement of the slider 306 then moves the push plate 308, which in turn moves the guide plate 309. During this movement, the push plate 308 pushes the sludge and larger sediments in the storage tank 1, accelerating the sludge treatment process and improving the sludge treatment efficiency and stratification accuracy of the device. The discharge mechanism 4 includes a drain valve pipe 401, which is fixedly connected to the inner wall of the storage tank 1. A fixing rod 402 is fixedly connected to the inner wall of the slider 306. A support block 403 is fixedly connected to the bottom of the fixing rod 402. A reinforcing member 404 is fixedly connected to the top of the fixing rod 402. A protective plate 405 is fixedly connected to the front of the reinforcing member 404. A sealing ring 406 is fixedly connected to the circumferential surface of the protective plate 405. When the device is in use, after the plastic suspended particles are recycled, the movement of the slider 306 will drive the fixed rod 402 to move. The movement of the fixed rod 402 will drive the support block 403 to move. The support block 403 will slide laterally on the inner wall of the guide slide 305. The movement of the fixed rod 402 will drive the reinforcing member 404 to move. The movement of the reinforcing member 404 will drive the protective plate 405 to move. The movement of the protective plate 405 will drive the sealing ring 406 to move. After the protective plate 405 moves a certain distance, it will open the opening of the sewage discharge valve pipe 401. At this time, the operator can open the valve of the sewage discharge valve pipe 401 to discharge the sludge in the storage tank 1. The design of the protective plate 405 and the sealing ring 406 can prevent the operator from accidentally opening the sewage discharge valve pipe 401, causing the unsedimented sludge in the sewage to remain in the upper layer of the sewage, which can improve the accuracy of the device in treating sewage. The discharge mechanism 4 also includes a liquid level sensor 407, which is fixedly connected to the inner wall of the storage tank 1. A float block 408 is slidably connected to the inner wall of the storage tank 1. The drain valve pipe 401 is fixedly connected to the storage tank 1 through a control valve. The protective plate 405 is in contact with the drain valve pipe 401 and is used to seal the drain valve pipe 401 to prevent leakage. The support block 403 is slidably connected to the inner wall of the guide slide 305 and is used to provide guidance and stability for the fixed rod 402. The fixed rod 402 is in contact with the guide slide 305. When the device is in use, during the process of sewage being discharged into the storage tank 1, the float block 408 can rise and float synchronously according to the sewage level. During the process of the float block 408 rising and floating, the liquid level sensor 407 can be activated synchronously. When the float block 408 and the liquid level sensor 407 are parallel, the liquid level sensor 407 can observe the sewage treatment level in real time. This can prevent the sewage discharge volume from being too large or too small, which could affect the subsequent sewage treatment efficiency. It can ensure that the sewage treatment volume is relatively consistent each time, and can ensure the consistency of sewage treatment by the device, avoiding related errors caused by the size of the sewage volume. Overall working principle: The scraper 303 can pre-seal the circular block 13 to scrape and push away debris and particles in the opening area of ​​the filter layer plate 6, preventing excessive debris and particles from clogging the opening of the filter layer plate 6 and affecting the sealing effect of the sealing circular block 13 on the filter layer plate 6. This avoids mixing of the upper and lower layers of sewage, thus improving the sewage stratification treatment effect of the device. The pusher 308 will push the sludge and larger sediments in the storage tank 1 to move, which can accelerate the sludge treatment speed of the device, improve the sludge treatment efficiency, and enhance the stratification treatment accuracy of the device. Operators can... The valve on the drain valve 401 can be opened to discharge the sludge in the storage tank 1. The design of the protective plate 405 and the sealing ring 406 prevents operator error from accidentally opening the drain valve 401, causing unsettled sludge to remain in the upper layer of the wastewater. This improves the accuracy of the device's wastewater treatment.

[0022] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for recovering suspended particles from wastewater used for washing recycled plastic granules, comprising a storage tank (1), characterized in that: The inner wall of the storage tank (1) is rotatably connected to a reciprocating screw (2). The inner wall of the storage tank (1) is provided with a pushing mechanism (3) for pushing sludge. The inner wall of the storage tank (1) is provided with a discharge mechanism (4) for discharging sewage. A moving block (5) is movably connected to the circumferential surface of the reciprocating screw (2). A filter layer plate (6) is fixedly connected to the inner wall of the moving block (5). A fixed frame (7) is fixedly connected to the top of the filter layer plate (6). A moving column (8) is slidably connected to the inner wall of the fixed frame (7). A connecting rod is fixedly connected to the right side of the moving column (8). Block (9), the circumferential surface of the connecting block (9) is rotatably connected to a roller (10), the inner wall of the storage pool (1) is fixedly connected to a guide block (11), the circumferential surface of the moving column (8) is fixedly connected to a connecting T block (12), the inner wall of the connecting T block (12) is fixedly connected to a sealing round block (13), the inner wall of the filter layer plate (6) is slidably connected to a sealing plate (14), the inner wall of the filter layer plate (6) is fixedly connected to a heating rod (15), the inner wall of the storage pool (1) is provided with a waterproof controller (16), and a motor is installed on the storage pool (1).

2. The suspended particle recovery device for washing wastewater from recycled plastic granules according to claim 1, characterized in that: The reciprocating screw (2) is fixedly connected to the output end of the motor. The moving block (5) is slidably connected to the inner wall of the storage pool (1). The roller (10) is in contact with the guide block (11), and the guide block (11) is used to push the roller (10) to move in the opposite direction. A spring is installed between the moving column (8) and the fixed frame (7), and the spring is used to reset the moving column (8).

3. The suspended particle recovery device for washing wastewater from recycled plastic granules according to claim 2, characterized in that: The sealing block (13) is in contact with the filter layer plate (6), the waterproof controller (16) is located on the movement trajectory of the heating rod (15), and the waterproof controller (16) is used to control whether the heating rod (15) is started. A spring is installed between the sealing plate (14) and the filter layer plate (6), and the sealing plate (14) is used to increase the sealing performance between the parts in the storage tank (1).

4. The suspended particle recovery device for washing wastewater from recycled plastic granules according to claim 3, characterized in that: The pushing mechanism (3) includes a fixing member (301), which is fixedly connected to the circumferential surface of the moving column (8). A connecting member (302) is fixedly connected to the bottom of the fixing member (301), and a scraper (303) is fixedly connected to the circumferential surface of the connecting member (302).

5. The suspended particle recovery device for washing wastewater from recycled plastic granules according to claim 4, characterized in that: The pushing mechanism (3) also includes a connecting groove block (304), which is fixedly connected to the bottom of the filter layer plate (6). A pull rod (307) is rotatably connected to the circumferential surface of the connecting groove block (304). A guide slide (305) is fixedly connected to the inner wall of the storage pool (1). A slider (306) is slidably connected to the inner wall of the guide slide (305). A push plate (308) is fixedly connected to the circumferential surface of the slider (306). A guide inclined plate (309) is rotatably connected to the circumferential surface of the push plate (308) through a torsion spring.

6. The suspended particle recovery device for washing wastewater from recycled plastic granules according to claim 5, characterized in that: The scraper (303) contacts the filter layer plate (6) and is used to push and scrape away debris and particles at the opening of the filter layer plate (6). The pull rod (307) is rotatably connected to the circumferential surface of the slider (306) and is used to drive the slider (306) to move. The push plate (308) contacts the storage tank (1) and is used to push the sludge inside the storage tank (1) to move.

7. The suspended particle recovery device for washing wastewater from recycled plastic granules according to claim 6, characterized in that: The discharge mechanism (4) includes a drain valve pipe (401), which is fixedly connected to the inner wall of the storage tank (1). A fixing rod (402) is fixedly connected to the inner wall of the slider (306). A support block (403) is fixedly connected to the bottom of the fixing rod (402). A reinforcing member (404) is fixedly connected to the top of the fixing rod (402). A protective plate (405) is fixedly connected to the front of the reinforcing member (404). A sealing ring (406) is fixedly connected to the circumferential surface of the protective plate (405).

8. The suspended particle recovery device for washing wastewater from recycled plastic granules according to claim 7, characterized in that: The discharge mechanism (4) also includes a liquid level sensor (407), which is fixedly connected to the inner wall of the storage tank (1), and a float block (408) is slidably connected to the inner wall of the storage tank (1).

9. A device for recovering suspended particles in wastewater from the washing of recycled plastic granules according to claim 8, characterized in that: The drain valve pipe (401) is fixedly connected to the storage tank (1) through a control valve. The protective plate (405) is in contact with the drain valve pipe (401) and is used to seal the drain valve pipe (401) to prevent leakage. The support block (403) is slidably connected to the inner wall of the guide slide (305) and is used to provide guidance and stability for the fixing rod (402). The fixing rod (402) is in contact with the guide slide (305).

Images