Environment-friendly treatment system for plant fiber molding waste

Abstract

The present application belongs to the technical field of waste biomass recycling, and specifically discloses an environment-friendly treatment system for plant fiber molding waste, which comprises a pulping device and a cleaning device matched with the pulping device. The pulping device comprises a tank body, and a stirring impeller is arranged in the tank body. The cleaning device comprises a side wall cleaning mechanism matched with the tank body, and an upper baffle and a lower baffle are arranged above and below the side wall cleaning mechanism, respectively. The upper baffle and the lower baffle are both in sliding connection with the tank body. The upper baffle is connected with a lifting mechanism. The environment-friendly treatment system for plant fiber molding waste can clean and add water while pulping, and can improve the production efficiency of paper pulp.

Description

Technical Field

[0001] This invention belongs to the field of waste biomass recycling technology, specifically relating to an environmentally friendly treatment system for plant fiber molding waste. Background Technology

[0002] Plant fiber molding uses different plant fibers or waste paper as raw materials to make pulp, and then creates molded products of various shapes from the pulp. These are mainly used for product packaging. Plant fiber molded products can recycle waste paper, making them more environmentally friendly than plastic packaging. After molding, plant fiber molded products need to be trimmed to ensure neat and aesthetically pleasing edges. The trimmed waste material can be used to make pulp; this type of waste paper is clean and of high quality, but the quantity is relatively small. The main source of waste paper is recycled paper after use; this type of waste paper contains ink, which needs to be removed during the pulping process.

[0003] Because ink and other impurities from waste paper remain in the equipment during the pulping process and are difficult to clean, existing vertical hydraulic pulpers require the pulp to be discharged, cleaned, and water added before they can be restarted after producing a batch of pulp. Although the quality of pulp produced by vertical hydraulic pulpers is stable, a lot of time is spent on discharging, cleaning, and adding water, resulting in low production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an environmentally friendly treatment system for plant fiber molding waste that can clean and add water while discharging pulp, thereby improving pulp production efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An environmentally friendly treatment system for plant fiber molding waste includes a pulping device and a cleaning device that works in conjunction with the pulping device. The pulping device includes a tank, and an agitator impeller is installed inside the tank. The agitator impeller includes a wheel body, and blades are installed on the wheel body. The blades are evenly distributed around the axis of the wheel body. All blades may be equipped with baffles, or baffles may be installed at intervals or not at all. The cleaning device includes a sidewall cleaning mechanism that works in conjunction with the tank. An upper baffle and a lower baffle are respectively installed above and below the sidewall cleaning mechanism. The upper baffle is connected to a lifting mechanism. When the cleaning device cleans the tank, the upper and lower baffles are located in the tank and are slidably connected to the tank. When the cleaning device is not cleaning the tank, the upper and lower baffles are located outside the tank.

[0007] Furthermore, the lifting mechanism includes a slide rod connected to the upper partition, the slide rod being parallel to the axis of the groove, a positioning groove having a direction in the same direction as the slide rod, a positioning rod having a direction in the same direction slidably connected to the positioning groove, and three or more of the slide rod and the positioning rod being provided; the lifting mechanism also includes a lifting rope connected to the upper partition, the lifting rope being connected to a reel, and a locking structure being connected to the reel.

[0008] Furthermore, the sidewall cleaning mechanism includes drive rollers distributed circumferentially around the axis of the tank body. Each drive roller is parallel to the axis of the tank body. The drive rollers are rotatably connected to the upper partition plate. A belt is fitted on the drive rollers. The side of the belt away from the drive rollers is evenly distributed with bristles that cooperate with the tank body. An annular water spray pipe is provided between the upper partition plate and the belt. A water inlet pipe connected to the water spray pipe is provided on the upper partition plate. The water inlet pipe is a flexible hose. Lateral nozzles are evenly distributed on the water spray pipe. The lateral nozzles correspond to the inner circumferential surface of the tank body.

[0009] Furthermore, a water collection trough is provided at the top of the lower partition plate. The water collection trough is located below the belt. The depth of the water collection trough gradually increases from the perimeter to the center. An upper suction head connected to the upper partition plate is provided in the center of the water collection trough. A slurry outlet pipe connected to the upper suction head is connected to the upper partition plate. The slurry outlet pipe is a flexible hose.

[0010] Furthermore, the cleaning device includes a bottom cleaning mechanism, which includes a bottom support structure connected to the edge of the lower partition plate, and a positioning structure disposed in the middle of the lower partition plate and the impeller. An impeller cleaning mechanism is disposed between the positioning structure and the bottom support structure.

[0011] Furthermore, the positioning structure includes multiple pairs of round rods disposed in the middle of the stirring impeller. The stirring impeller has four or more blades, and the number of round rods is equal to that of the stirring impeller. The round rods are evenly distributed around the axis of the stirring impeller. Each round rod has a dome structure at its top, and there is a positioning gap between every two adjacent round rods. The positioning structure also includes a positioning plate connected to the middle of the lower partition plate. The bottom end of the positioning plate is rotatably connected to a cylindrical plug, and the axis of the plug is perpendicular to the round rod.

[0012] Furthermore, the bottom support structure includes three or more support rods, which are evenly distributed around the axis of the tank, and each support rod is parallel to the axis of the tank.

[0013] Furthermore, the impeller cleaning mechanism includes cleaning components that cooperate with the impeller blades. Each cleaning component includes two sets of brush heads, and the brush heads are connected to a drive mechanism. Each brush head can be connected to a bottom motor, or a set of brush heads can be connected together through a transmission mechanism such as gears, sharing a single bottom motor. Each set of brush heads is distributed along the length of the blades or the baffles on the blades. Each brush head is parallel to the axis of the trough, and each brush head has bristles on its bottom and sides.

[0014] Furthermore, the bottom cleaning mechanism also includes a lower suction head disposed between two adjacent cleaning components. The lower suction head is connected to a slurry outlet branch pipe. The end of the slurry outlet branch pipe away from the lower suction head is connected to the slurry outlet pipe. A valve is disposed on the slurry outlet branch pipe. A valve is disposed between the upper suction head and the slurry outlet pipe.

[0015] Furthermore, the cleaning device includes a rapid water flow structure, which includes water valves installed on the upper and lower partitions; the rapid water flow structure also includes a water pipe installed outside the tank body, with the top end of the water pipe connected to the upper part of the tank body and the bottom end of the water pipe connected to the lower part of the tank body, and a water valve installed inside the water pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The pulping device of this application can crush waste materials into pulp. The lower baffle allows the cleaning device to be placed on the pulp surface and performs preliminary scraping and cleaning of the sidewalls, pressing residual pulp on the sidewalls into the pulp below, reducing waste. The lower baffle also separates the sidewall cleaning mechanism from the pulp below, allowing the sidewall cleaning mechanism to clean the inner wall of the tank above the pulp again while discharging pulp, removing impurities such as ink. This double cleaning improves cleaning quality, minimizes the impact of impurities, and improves pulp quality. The upper baffle allows water to be added above the upper baffle while discharging pulp and cleaning the inner wall. The upper and lower baffles, in conjunction with the cleaning device, can clean the inner wall of the tank and add water while discharging pulp, improving pulping efficiency. Furthermore, the upper and lower baffles work together to transfer the pressure of the water above to the pulp below, accelerating pulp discharge, and simultaneously supporting the cleaning device with the pulp below. This application converts plant fiber molding waste and waste paper into pulp, enabling the recycling of waste resources and achieving environmental benefits.

[0018] 2. The positioning rod and positioning groove ensure that the upper and lower partitions are parallel to the cross-section of the tank, and ensure that the upper and lower partitions can be raised and lowered stably after the cleaning device enters the tank; the reel drives the upper partition to rise and fall through the lifting rope, and the reel can be passively rotated during descent, so that the lower partition is always located on the pulp liquid surface under the action of gravity; the locking structure ensures the stability of the reel and keeps it stable when the cleaning device is raised and not in use.

[0019] 3. The ring-shaped water spray pipe delivers water to various locations on the inner wall of the tank, facilitating the rinsing of impurities. The conveyor belt simultaneously scrubs the circumferential inner wall, ensuring high-quality impurity removal. The water collection trough directs impurities to the center of the lower baffle, ensuring a stable discharge of cleaned debris.

[0020] 4. The bottom support structure allows for a gap between the lower baffle and the impeller, enabling the impeller cleaning mechanism to clean the agitating impeller; the positioning structure fixes the relative position between the impeller cleaning mechanism and the agitating impeller, ensuring stable cleaning of the impeller.

[0021] 5. The dome structure of the positioning structure cooperates with the plug, so that after the bottom of the plug contacts the dome, it can apply a horizontal component force to the dome, ensuring that the plug can drive the dome to rotate, thereby driving the stirring impeller to rotate, so that the plug can be stably inserted into the positioning gap, and the impeller cleaning mechanism can stably clean the impeller.

[0022] 6. The bottom support structure is set as a support rod, which maintains a gap between the lower baffle and the impeller without affecting the cleaning of the bottom of the tank. Two sets of brush heads can clean both ordinary blades and blades with flow plates, increasing the applicability of the cleaning device.

[0023] 7. The pulp at the bottom of the tank will be scraped between adjacent blades. The lower suction head can discharge the pulp between the two blades, ensuring the cleaning effect of the pulp at the bottom. The valve can prevent the lower suction head from connecting with the upper suction head, ensuring that impurities are stably discharged from the tank.

[0024] 8. The water valve connects the upper part of the upper partition to the lower part of the lower partition. After cleaning, the cleaning device is difficult to remove due to the high water pressure at the top. Connecting the upper part of the upper partition to the lower part of the lower partition reduces the water pressure on the upper partition, allowing the cleaning device to be removed stably. The water pipe accelerates the flow of water from the top to the bottom, allowing the water to quickly fill the lower part of the lower partition and ensuring that the lower partition is buoyed. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of Embodiment 1 of the present invention;

[0026] Figure 2 This is a schematic diagram of the top of the upper partition plate in Embodiment 1 of the present invention;

[0027] Figure 3 This is a schematic diagram of the upper partition and sidewall cleaning mechanism of Embodiment 1 of the present invention;

[0028] Figure 4 This is a schematic diagram of the locking structure in Embodiment 1 of the present invention;

[0029] Figure 5 for Figure 4 A magnified view of a portion of the image;

[0030] Figure 6 This is a schematic diagram of the connection between the belt and the drive roller in Embodiment 1 of the present invention;

[0031] Figure 7This is a schematic diagram showing the connection between the lower partition and the bottom cleaning mechanism in Embodiment 1 of the present invention;

[0032] Figure 8 This is a schematic diagram of the bottom cleaning mechanism at the bottom end of the lower partition in Embodiment 1 of the present invention;

[0033] Figure 9 This is a schematic diagram of the brush bristles on the brush head according to Embodiment 1 of the present invention;

[0034] Figure 10 This is a schematic diagram of the bottom of the tank in Embodiment 1 of the present invention;

[0035] Figure 11 This is a schematic diagram of the positioning structure in Embodiment 1 of the present invention;

[0036] Figure 12 This is a schematic diagram of the cleaning component and blade assembly in Embodiment 1 of the present invention;

[0037] Figure 13 This is a schematic diagram of the water pipe in Embodiment 1 of the present invention.

[0038] In the diagram: 1. Tank body; 2. Agitator impeller; 3. Wheel body; 4. Blade; 5. Baffle plate; 6. Side wall cleaning mechanism; 7. Upper partition plate; 8. Lower partition plate; 9. Sealing ring; 10. Positioning structure; 11. Impeller cleaning mechanism; 12. Slide rod; 13. Positioning groove; 14. Positioning rod; 15. Lifting rope; 16. Reel; 17. Cleaning assembly; 18. Ratchet; 19. Ratchet tooth; 20. Drive spring; 21. Electric telescopic rod; 22. Transmission roller; 23. Side wall cleaning motor; 24. Belt; 25. Brush bristles. 26. Spray pipe 27. Inlet pipe 28. Side nozzle 29. Water collection tank 20. Upper suction head 31. Slurry outlet pipe 32. Round rod 33. Dome structure 34. Positioning gap 35. Positioning plate 36. Connector 37. Bottom nozzle 38. Inlet branch pipe 39. Water valve 40. Support rod 41. Brush head 42. Lower suction head 43. Lower suction pipe 44. Slurry outlet branch pipe 45. Valve 46. Water passage hole 47. Water passage pipe 48. Filter screen 49. Slurry discharge hole Detailed Implementation

[0039] Example 1

[0040] An environmentally friendly treatment system for plant fiber molding waste, such as Figure 1-13 As shown, it includes a pulping device and a cleaning device that works in conjunction with the pulping device; such as Figure 1As shown, the pulping device includes a tank 1, which is a rotating structure with a vertically aligned axis. An impeller 2 is installed inside the tank 1, connected to a stirring motor. A filter screen 48 is located below the impeller 2, and a discharge hole 49 is located below the filter screen 48. The impeller 2 includes a wheel body 3, on which four blades 4 are evenly distributed around the axis of the wheel body 3. A baffle 5, which is arc-shaped and angled with the blades 4, extends from the center to the edge of the wheel body 3. The cleaning device includes a sidewall cleaning mechanism 6 that cooperates with the tank 1. An upper baffle 7 and a lower baffle 8 are respectively installed above and below the sidewall cleaning mechanism 6. The projections of the upper baffle 7 and the lower baffle 8 on the horizontal plane are both circles coaxial with the tank 1. The upper partition 7 is connected to a lifting mechanism. When the cleaning device is in the tank 1, both the upper partition 7 and the lower partition 8 are slidably connected to the tank 1. Sealing rings 9 are fitted on the outer circumference of both the upper partition 7 and the lower partition 8 to prevent water above the upper partition 7 and pulp below the lower partition 8 from entering the side wall cleaning mechanism 6, so that a sealed chamber is formed between the upper partition 7 and the lower partition 8, which facilitates the side wall cleaning mechanism 6 to clean the side wall of the tank 1 stably without affecting other parts of the tank 1.

[0041] The cleaning device also includes a bottom cleaning mechanism for cleaning the bottom surface of the tank 1 and the stirring impeller 2. The bottom cleaning mechanism includes a bottom support structure connected to the edge of the lower partition 8, and a positioning structure 10 disposed in the middle of the lower partition 8 and the impeller. An impeller cleaning mechanism 11 is disposed between the positioning structure 10 and the bottom support structure. The bottom support structure forms a support between the lower partition 8 and the bottom surface of the tank 1, creating a gap between the lower partition 8 and the bottom surface of the tank 1, allowing the bottom cleaning mechanism to clean the impeller. The positioning structure 10 connects the lower partition 8 and the impeller at a specific angle, enabling the impeller cleaning mechanism 11 to align with the blades 4 and stably clean the blades 4.

[0042] like Figure 1-3As shown, the upper partition 7 has a cylindrical structure. The lifting mechanism includes three sliding rods 12 fixedly connected to the top of the upper partition 7. The length of each sliding rod 12 is greater than the depth of the trough 1, ensuring that the cleaning device can descend to the bottom of the trough 1. Each sliding rod 12 is parallel to the axis of the trough 1. Each sliding rod 12 has a vertical positioning groove 13, and each positioning groove 13 is slidably connected to a vertical positioning rod 14. The positioning rod 14 and the positioning groove 13 are slidably connected in the vertical direction via a sliding bearing. Both the positioning groove 13 and the positioning rod 14 are cylindrical structures. The sliding rods 12 and the positioning rods 14 are evenly distributed circumferentially around the axis of the upper partition 7, keeping the upper partition 7 stable and preventing it from tilting. The lifting mechanism also includes a lifting rope 15 fixedly connected to the center of the top of the upper partition 7. A reel 16 is connected to the end of the lifting rope 15 away from the upper partition 7. The reel 16 is fixedly installed above the upper partition 7 and is connected to a lifting motor, which is a non-self-locking motor.

[0043] like Figure 4-5 As shown, a locking structure is connected to the reel 16. The locking structure includes a ratchet 18 fixedly connected to the reel 16. The ratchet 18 is coaxial with the reel 16. The locking structure also includes a ratchet 19 that engages with the ratchet 18. After the ratchet 19 engages with the ratchet 18, the ratchet 18 can only rotate in the forward direction and cannot rotate in the reverse direction. The ratchet 19 is rotatably connected to a fixed seat. The fixed seat is fixed relative to the lifting motor. A drive spring 20 is connected to the side of the ratchet 19 away from the ratchet 18. An electric telescopic rod 21 is connected to the end of the drive spring 20 away from the ratchet 19. The electric telescopic rod 21 is fixed relative to the lifting motor.

[0044] like Figure 3 and Figure 6 As shown, the sidewall cleaning mechanism 6 includes drive rollers 22 arranged circumferentially around the axis of the tank body 1. Each drive roller 22 is parallel to the axis of the tank body 1. Each drive roller 22 is rotatably connected to the upper partition 7, and the axis of rotation is vertically arranged. One drive roller 22 is connected to a sidewall cleaning motor 23. All drive rollers 22 are fitted with the same belt 24. The side of the belt 24 away from the drive rollers 22 is evenly distributed with bristles 25 corresponding to the tank body 1. A circular water spray pipe 26 is arranged between the upper partition 7 and the belt 24. The water spray pipe 26 is coaxial with the tank body 1 and is fixedly connected to the bottom end of the upper partition 7. A water inlet pipe 27 connected to the water spray pipe 26 is fixed on the upper partition 7. A water valve 39 is provided on the water inlet pipe 27 to control the opening and closing of the water spray pipe 26. The water inlet pipe 27 is a flexible hose. Lateral nozzles 28 are evenly distributed on the water spray pipe 26, and the lateral nozzles 28 are all oriented away from the axis.

[0045] like Figure 7-12As shown, a water collection trough 29 is provided at the top of the lower partition 8. The water collection trough 29 is located below the belt 24, and a gap is provided between the water collection trough 29 and the belt 24 in the vertical direction. The depth of the water collection trough 29 gradually increases from the periphery to the center. An upper suction head 30 is provided in the center of the water collection trough 29 and is fixedly connected to the upper partition 7. A slurry outlet pipe 31 is fixedly connected to the upper partition 7. A valve 45 is provided on the slurry outlet pipe 31 to control the opening and closing of the upper suction head 30. The slurry outlet pipe 31 is connected to the top of the upper suction head 30 and is a flexible hose.

[0046] like Figure 10-11 As shown, the positioning structure 10 includes two pairs of round rods 32 fixed in the middle of the stirring impeller 2. The round rods 32 are all vertically arranged cylindrical structures. The round rods 32 are evenly distributed around the axis of the stirring impeller 2. The top of each round rod 32 is provided with a hemispherical dome structure 33. There is a positioning gap 34 between every two adjacent round rods 32. The positioning structure 10 also includes a positioning plate 35 fixed in the middle of the lower partition plate 8. The positioning plate 35 is vertically arranged. The bottom end of the positioning plate 35 is rotatably connected to a cylindrical plug 36. The plug 36 and its rotation axis are both horizontally arranged. Two connectors 36 are arranged opposite each other on the bottom sides of the positioning plate 35. A bottom nozzle 37 facing downward is fixedly connected to the middle of the bottom of the positioning plate 35. The bottom nozzle 37 is connected to the water inlet pipe 27 through the water inlet branch pipe 38. A water valve 39 is provided on the water inlet branch pipe 38. The bottom nozzle 37 is located between the two connectors 36 and is used to clean the impurities between the four round rods 32. The water flow can flush the impurities from the center of the impeller to the surrounding area, and finally flush the impurities onto the filter screen 48 below the impeller.

[0047] like Figure 7-9 As shown, the bottom support structure includes three vertically arranged support rods 40. The top of the support rods 40 is fixed to the bottom edge of the lower partition plate 8. The support rods 40 are evenly distributed in a circle around the axis of the tank body 1. The length of the support rods 40 is greater than the sum of the heights of the impeller and the round rod 32, ensuring that there is a gap in the vertical direction between the lower partition plate 8 and the round rod 32.

[0048] The impeller cleaning mechanism 11 includes cleaning components 17 that cooperate with the impeller blades 4. Each cleaning component 17 includes two sets of brush heads 41 distributed on both sides of the baffle 5. In this embodiment, each brush head 41 is connected to a bottom motor, which is fixedly connected to the lower partition 8. Each set of brush heads 41 is distributed along the length direction of the baffle 5 on the blades 4. Each brush head 41 is parallel to the axis of the tank 1. Figure 9 As shown, each brush head 41 has bristles 25 on its bottom and sides, with the bristles on the bottom side spreading outwards from top to bottom; there is a gap between the side bristles 25 of the two sets of brush heads 41 in the same cleaning assembly 17, and the bottom bristles 25 of the two sets of brush heads 41 are in contact with each other to avoid the blades 4 not being cleaned properly.

[0049] The bottom cleaning mechanism also includes a lower suction head 42 positioned between every two adjacent cleaning components 17. The top of each lower suction head 42 is connected to the same annular lower suction pipe 43. The lower suction pipe 43 is fixedly positioned at the bottom of the lower partition 8. A slurry outlet branch pipe 44 connects the lower suction pipe 43 to the slurry outlet pipe 31. The top of the slurry outlet branch pipe 44 connects to the slurry outlet pipe 31. A valve 45 is installed on the slurry outlet branch pipe 44. A valve 45 is also installed between the connection point of the slurry outlet pipe 31 and the slurry outlet branch pipe 44 and the upper suction head 30, allowing the lower suction head 42 and the upper suction head 30 to operate independently. The lower suction head is positioned at the end of the cleaning component near the axis of the lower partition. The top of the filter screen has a groove-shaped structure with a lower center and higher edges, allowing water flow to concentrate towards the center, facilitating the cleaning of impurities on the filter screen by the lower suction head.

[0050] like Figure 13 As shown, the cleaning device includes a rapid water flow structure, which includes water flow holes 46 opened on the upper partition 7 and the lower partition 8. All water flow holes 46 are vertically arranged, and each water flow hole 46 is equipped with a water valve 39. The rapid water flow structure also includes a water flow pipe 47 installed outside the tank 1. The top end of the water flow pipe 47 is connected to the upper part of the tank 1, and the bottom end of the water flow pipe 47 is connected to the lower part of the tank 1. A water valve 39 is installed inside the water flow pipe 47. Multiple water flow pipes 47 and water flow holes 46 are provided. By increasing the cross-sectional area of ​​the water flow, the flow velocity is increased, allowing water above the upper partition 7 to flow rapidly to the bottom of the lower partition 8. In this embodiment, both the water valve 39 and the valve 45 are solenoid valves for convenient control.

[0051] Example 2

[0052] A method for treating plant fiber molding waste using the environmentally friendly treatment system of Example 1 includes the following steps:

[0053] Step 1: Collect waste materials and pulp them; add water to tank 1, add the collected waste paper materials or the trimmed waste materials from the pulp molding process to tank 1, start the stirring motor to stir the waste materials and break them into pulp; when using waste paper materials to make pulp, add deinking reagent during the stirring process to remove the ink from the pulp to avoid affecting the product color.

[0054] Step 2: After pulping is completed, drain the pulp and clean tank 1;

[0055] Step 2.1, Lowering the Cleaning Device: After the pulp is agitated and crushed in tank 1, it is discharged from tank 1 for further processing. Simultaneously with pulp discharge, the cleaning device is lowered: the electric telescopic rod 21 is shortened, causing the drive spring 20 to extend and generate elastic force. The ratchet 19 is pulled away from the ratchet 18 by the drive spring 20. The lifting motor is controlled to rotate forward by a set angle. The lifting motor, through the reel 16 and lifting rope 15, drives the upper partition 7 upward. The reel 16 rotates forward and drives the ratchet 18 to rotate. At this time, the ratchet 19, under the tension of the drive spring 20, rotates away from the ratchet 18, disengaging from it. After the lifting motor rotates forward by the set angle, it is then controlled to rotate in the opposite direction, causing the upper partition 7 to descend. When the lower partition 8 descends to the pulp surface, the lifting motor stops. The motor is not locked, and the lower partition 8 remains pressed against the pulp surface under gravity, applying pressure to the pulp and promoting discharge.

[0056] Step 2.2, cleaning the sidewalls: As the lower partition 8 moves downward, it initially scrapes away residual impurities on the inner sidewall of the tank 1. At the same time, the sidewall cleaning motor 23 is started, the water valve 39 on the inlet pipe 27 is opened, the water valve 39 on the inlet branch pipe 38 is closed, the valve 45 on the outlet pipe 31 is opened, and the valve 45 on the outlet branch pipe 44 is closed. The side nozzle 28 sprays water (a cleaning agent can be added to the water) onto the inner sidewall of the tank 1. At the same time, the sidewall cleaning motor 23 drives the transmission roller 22, which in turn drives the belt 24 to rotate. The bristles 25 on the belt 24 brush the inner sidewall of the tank 1, removing residual impurities (ink, etc.) from the inner sidewall of the tank 1. The removed impurities are washed into the water collection tank 29 by the water flow and flow to the low-lying area in the middle of the water collection tank 29, where they are sucked out by the upper suction head 30. Finally, the impurities are discharged from the outlet pipe 31. Once the top of the partition 8 enters the tank 1, water is added from the top of the tank 1 without waiting for the cleaning to be completed.

[0057] Step 2.3, clean the bottom. When the lower partition 8 descends to the bottom of the tank 1, the plug 36 contacts the dome structure 33 and applies downward pressure to the point of contact with the dome structure 33. Under the action of pressure, the dome structure 33 generates a horizontal component force, which drives the stirring impeller 2 to rotate through the round rod 32, so that the plug 36 is inserted into the positioning gap 34 between the round rods 32. Then, the bottom end of the support rod 40 contacts the bottom end of the tank 1, and the support rod 40 supports the lower partition 8, so that there is a gap between the lower partition 8 and the stirring impeller 2. After the pulp at the bottom is discharged, close the water valve 39 on the inlet pipe 27 and the valve 45 on the outlet pipe 31, and open the water valve 39 on the inlet branch pipe 38 and the valve 45 on the outlet branch pipe 44. The bottom nozzle 37 sprays water towards the center of the wheel body 3 and flows to the surrounding area, washing the impurities on the stirring impeller 2 down onto the filter screen 48. At the same time, the bottom motor drives the brush head 41 to rotate, brushing the blades 4 and the baffle plate 5 to remove impurities. The water containing impurities flows on the filter screen towards the wheel body, that is, it flows downward to the pulp suction head, so that the lower pulp suction head 42 draws out the water containing pulp impurities and discharges it from the tank 1 through the outlet pipe 31.

[0058] Step 3: Remove the cleaning device. After the bottom of the tank 1 is cleaned, open the water valve 39 in the water inlet 46 and water pipe 47. The water above the upper partition 7 flows through the water inlet 46 and water pipe 47 to the bottom of the lower partition 8, filling the bottom of the lower partition 8 with water and increasing the buoyancy of the lower partition 8. Then, control the extension of the electric telescopic rod 21, so that the drive spring 20 exerts pressure on the ratchet 19 to rotate in the direction of the ratchet 18. Then, control the lifting motor to rotate in the forward direction. The lifting motor drives the upper partition 7 to rise through the reel 16 and lifting rope 15. After the water inlet 46 is opened, it can reduce the resistance of the upper partition 7 rising. After the upper partition 7 rises to the set position, stop driving the lifting motor. The ratchet 19 engages with the ratchet 18 to prevent the ratchet 18 and the reel 16 from rotating in the opposite direction, so that the cleaning device remains stable.

Claims

1. An environmentally friendly treatment system for plant fiber molding waste, characterized in that, The device includes a pulping unit and a cleaning unit that works in conjunction with the pulping unit. The pulping unit includes a tank body with an agitator impeller installed inside. The cleaning unit includes a sidewall cleaning mechanism that works in conjunction with the tank body. An upper partition and a lower partition are respectively installed above and below the sidewall cleaning mechanism. Both the upper and lower partitions are slidably connected to the tank body. The upper partition is connected to a lifting mechanism. The sidewall cleaning mechanism includes drive rollers arranged circumferentially around the axis of the tank body. Each drive roller is parallel to the axis of the tank body. The drive rollers are rotatably connected to an upper partition. A belt is fitted on each drive roller. The side of the belt away from the drive rollers is evenly distributed with bristles that cooperate with the tank body. An annular water spray pipe is provided between the upper partition and the belt. A water inlet pipe, which is a flexible hose, is provided on the upper partition and connected to the water spray pipe. Lateral nozzles are evenly distributed on the water spray pipe, and the lateral nozzles correspond to the inner circumferential surface of the tank body. The cleaning device includes a bottom cleaning mechanism, which includes a bottom support structure connected to the edge of the lower partition plate, and a positioning structure disposed in the middle of the lower partition plate and the impeller. An impeller cleaning mechanism is disposed between the positioning structure and the bottom support structure. The positioning structure includes two or more pairs of round rods disposed in the middle of the stirring impeller. The round rods are evenly distributed around the axis of the stirring impeller. Each round rod has a dome structure at its top end, and there is a positioning gap between every two adjacent round rods. The positioning structure also includes a positioning plate connected to the middle of the lower partition plate. The bottom end of the positioning plate is rotatably connected to a cylindrical connector, and the axis of the connector is perpendicular to the round rod. The cleaning device includes a rapid water flow structure, which includes water valves installed on the upper and lower partitions; the rapid water flow structure also includes a water pipe installed outside the tank body, the top end of the water pipe being connected to the upper part of the tank body, the bottom end of the water pipe being connected to the lower part of the tank body, and a water valve being installed inside the water pipe.

2. The environmentally friendly treatment system for plant fiber molding waste as described in claim 1, characterized in that, The lifting mechanism includes a slide rod connected to the upper partition plate. The slide rod is parallel to the axis of the groove. A positioning groove with the same direction as the slide rod is opened in the slide rod. A positioning rod with the same direction as the positioning groove is slidably connected to the positioning groove. There are three or more of the slide rod and the positioning rod. The lifting mechanism also includes a lifting rope connected to the upper partition plate. The lifting rope is connected to a reel. A locking structure is connected to the reel.

3. The environmentally friendly treatment system for plant fiber molding waste as described in claim 2, characterized in that, The lower partition has a water collection trough at its top, which is located below the belt. The depth of the water collection trough gradually increases from the perimeter to the center. An upper suction head connected to the upper partition is provided in the center of the water collection trough. A slurry outlet pipe connected to the upper suction head is connected to the upper partition. The slurry outlet pipe is a flexible hose.

4. The environmentally friendly treatment system for plant fiber molding waste as described in claim 3, characterized in that, The bottom support structure includes three or more support rods, which are evenly distributed around the axis of the groove, and each support rod is parallel to the axis of the groove.

5. The environmentally friendly treatment system for plant fiber molding waste as described in claim 4, characterized in that, The impeller cleaning mechanism includes cleaning components that cooperate with the blades of the impeller. Each cleaning component includes two sets of brush heads, and each brush head is connected to a drive mechanism. Each brush head is parallel to the axis of the tank, and each brush head has bristles at its bottom and side.

6. The environmentally friendly treatment system for plant fiber molding waste as described in claim 5, characterized in that, The bottom cleaning mechanism also includes a lower suction head disposed between two adjacent cleaning components. A slurry outlet branch pipe is connected to the lower suction head. The end of the slurry outlet branch pipe away from the lower suction head is connected to the slurry outlet pipe. A valve is disposed on the slurry outlet branch pipe. A valve is disposed between the upper suction head and the slurry outlet pipe.

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