Water washing separation device for polymer

Abstract

The invention relates to the technical field of polymer washing separation, and particularly discloses a polymer washing separation device which comprises a washing tank and an auxiliary washing device located on the washing tank, and the auxiliary washing device comprises a driving part installed outside the washing tank and an intermediate shaft connected with an output shaft of the driving part and extending into the washing tank; the middle shaft is sleeved with a mounting disc rotating along with the middle shaft. A cleaning assembly is arranged on the mounting disc and comprises a mounting frame connected with the mounting disc and a cleaning roller rotationally matched with the mounting frame, the cleaning roller is parallel to the middle shaft, and the side face of the cleaning roller abuts against the inner wall of the washing tank; the cleaning roller rotates along with the middle shaft, when the cleaning roller moves relative to the washing tank, the cleaning roller rotates under the action of friction force and cleans greasy dirt, and the washing separation device for the polymer has the effects that the greasy dirt adhering to the interior of the washing tank can be conveniently removed, and meanwhile the polymer is in full contact with water so that the washing efficiency of the polymer can be improved.

Description

Technical Field

[0001] This invention relates to the technical field of polymer washing and separation, and more specifically to a polymer washing and separation apparatus. Background Technology

[0002] Polymers are high molecular weight compounds composed of a large number of repeating structural units linked by chemical bonds. They need to be washed and separated to remove unreacted monomers, catalysts and byproducts. Washing removes these impurities to improve the purity of the polymer and neutralizes residual acids and alkalis to avoid affecting subsequent processing or product performance.

[0003] Patent document CN202700146U discloses a polymer washing device, which includes a tank with a material inlet on the lower part of one side and an oil phase outlet on the upper part of the other side. A drain outlet is located at the bottom of the tank. An isolation sleeve connected to the material inlet is installed inside the tank. The isolation sleeve is closed at the bottom and open at the top, dividing the tank into a forced mixing zone inside the sleeve and a static separation zone outside the sleeve. An agitator is installed in the forced mixing zone. The material enters through the material inlet at the bottom of the tank and is subjected to forced shearing and mixing by the agitator during its ascent, ensuring thorough mixing of the polymer and water. The polymer is dispersed in the water, increasing the contact area between the polymer and water for washing.

[0004] However, this solution also has the following problems: the polymer contains oil, such as incompletely separated grease. During the polymer washing process, the oil easily adheres to the side walls of the tank. When the grease covers the side walls, the surface tension of the water prevents the oil from spreading evenly, leading to localized adhesion and ultimately causing the oil to remain inside the tank. Oil adhesion to the side walls reduces the effective contact area of ​​the washing device, resulting in insufficient mixing of the polymer and water, affecting the dissolution and separation efficiency of impurities, and consequently impacting the polymer washing efficiency. Summary of the Invention

[0005] This invention provides a water washing and separation device for polymers, aiming to solve the problem in related technologies where oil stains easily adhere to the side walls of the tank during polymer washing, affecting the washing efficiency of the polymer.

[0006] In a first aspect, the present invention provides a water washing and separation device for polymers, comprising a water washing tank and an auxiliary water washing device located on the water washing tank. The auxiliary water washing device includes: a drive component installed outside the water washing tank, and an intermediate shaft connected to the output shaft of the drive component and extending into the water washing tank; a mounting plate that rotates with the intermediate shaft is sleeved on the outside of the intermediate shaft; a cleaning assembly is provided on the mounting plate, the cleaning assembly including: a mounting frame connected to the mounting plate, and a cleaning roller that rotatably cooperates with the mounting frame, the cleaning roller being parallel to the intermediate shaft and its side abutting against the inner wall of the water washing tank; the cleaning roller rotating with the intermediate shaft, and rotating under the action of friction when rotating relative to the water washing tank, so as to remove oil stains adhering to the inner wall of the water washing tank, and simultaneously squeeze the polymer clumps located on the inner wall of the water washing tank to break them up.

[0007] Its effect lies in cleaning the oil stains adhering to the side wall of the washing tank by setting up a cleaning component. Specifically, the drive component drives the intermediate shaft to rotate, which in turn drives the washing blades to agitate the polymer, ensuring full contact between the polymer and water and improving the washing effect. Simultaneously, the intermediate shaft rotates the mounting plate, which in turn drives the cleaning roller to rotate via the mounting frame. By keeping the cleaning roller in contact with the side wall of the washing tank, it can rotate on its own axis as it rotates with the mounting frame. This rotation removes the oil stains adhering to the inner wall of the washing tank, preventing oil stains from remaining inside. Simultaneously, the rotation of the cleaning roller breaks up any clumps of polymer near the side wall, allowing for full contact with water. By setting up the cleaning roller, oil stains adhering to the side wall of the washing tank can be cleaned while assisting in agitation. The cleaning roller's continuous rotation, combined with the side wall of the washing tank, enables self-cleaning, preventing some oil stains from adhering to the surface of the cleaning roller for extended periods and affecting the washing process. It also ensures full contact between the polymer and water, improving the washing efficiency of the polymer.

[0008] Preferably, an auxiliary rod is installed at the bottom of the mounting plate, and multiple auxiliary rollers are arranged on the auxiliary rod, with the auxiliary rollers arranged in a vertical direction.

[0009] Its effect is that when the mounting plate rotates, the auxiliary rod drives the auxiliary roller to rotate, and the rotation of the auxiliary roller assists in stirring and washing the polymer, so that the polymer comes into full contact with the water.

[0010] Preferably, the bottom of the mounting plate is provided with a guide groove, which is arc-shaped. The end of the auxiliary rod is slidably engaged with the guide groove. The auxiliary roller is slidably arranged along the length direction of the auxiliary rod. An adjustment component is provided inside the auxiliary rod. The bottom of the mounting plate is provided with a rack. When the adjustment component moves to engage with the rack, it is used to adjust the distance between the auxiliary rollers. An elastic element II connected to the auxiliary rod is provided inside the guide groove. The elastic element II is used to drive the auxiliary rod to move in a direction away from the rack.

[0011] The effect is that when the rotation speed of the auxiliary rod is different, the resistance experienced by the auxiliary roller will also change accordingly. When the resistance experienced by the auxiliary rod is greater, the auxiliary roller drives the auxiliary rod to move in the guide groove. The auxiliary rod drives the adjustment component to cooperate with the rack, thereby adjusting the distance between the auxiliary rollers. This makes the distance between the auxiliary rods change with the state of the resistance they experience, so as to present different stirring states and improve the stirring effect on the polymer.

[0012] Preferably, the rack and guide groove are concentrically arranged, and the adjustment assembly includes: an adjustment rod rotatably mounted in the auxiliary rod, an adjustment gear coaxially arranged at the end of the adjustment rod, and an adjustment block slidably sleeved on the outside of the adjustment rod. The adjustment rod has a threaded groove that is threadedly engaged with the adjustment block. A slider is provided on the auxiliary roller, and the slider is slidably sleeved on the outside of the adjustment rod. A spring is provided between the slider and the adjustment block and between two adjacent sliders.

[0013] Its effect is that the auxiliary rod moves in the guide groove, which drives the adjusting gear to move closer to the rack and mesh with the rack. The rotation of the adjusting gear drives the adjusting rod to rotate. The adjusting rod drives the adjusting block to move through its threaded groove. The adjusting block moves closer to the slider, which adjusts the distance between the sliders, and thus adjusts the distance between the auxiliary rollers.

[0014] Preferably, the distance between the guide groove and the center of the mounting plate gradually decreases along the rotation direction away from the mounting plate, the center of the guide groove and the center of the mounting plate are arranged at intervals, the auxiliary rod is set in the direction towards the center of the guide groove, when the auxiliary roller and the cleaning roller abut, the adjusting gear and the rack cooperate to drive multiple auxiliary rollers to abut against each other, so that the cleaning roller rotates and drives multiple auxiliary rollers to rotate.

[0015] Its effect is that after multiple auxiliary rollers come into contact with each other, the auxiliary rollers come into contact with the cleaning rollers. The rotation of the cleaning rollers can drive the auxiliary rollers to rotate, thereby achieving mutual cleaning between the two. At the same time, the distance between the guide groove and the mounting plate gradually changes so that the adjusting rod can drive the auxiliary rollers that come into contact with the cleaning rollers to move to the center line connecting the cleaning rollers and the mounting plate. Furthermore, the auxiliary rods set towards the center of the guide grooves make the cleaning rollers and auxiliary rollers also tilted at this time. Through the multiple auxiliary rollers and cleaning rollers arranged at an angle, the polymer on the side wall of the washing tank is pushed closer to the center of the washing tank, further improving the stirring effect on the polymer and allowing it to fully contact the water for washing.

[0016] Preferably, there are two sets of mounting frames and cleaning rollers, and the two sets of mounting frames and cleaning rollers are symmetrically arranged around the center of the mounting plate.

[0017] Preferably, a control lever is provided inside the washing tank, and a torsion spring is provided at the connection between the control lever and the washing tank to drive the control lever to rotate to a vertical position. An auxiliary rod is located below the mounting frame. The control lever abuts against the auxiliary rod to drive the auxiliary rod to rotate and move closer to the mounting frame. When the mounting frame abuts against the control lever, it drives the control lever to rotate, causing the control lever to separate from the auxiliary rod. Subsequently, the second spring drives the auxiliary rod to move away from the mounting frame.

[0018] Preferably, the mounting plate is rotatably assembled inside the washing tank. The mounting plate is rotatably set outside the intermediate shaft. Gear 1 is rotatably set inside the mounting plate. Gear 2, which meshes with gear 1, is coaxially set outside the intermediate shaft. Tooth grooves are opened in the circumferential direction inside the mounting plate. Gear 1 meshes with the tooth grooves. The diameter of gear 2 is larger than the diameter of gear 1.

[0019] Preferably, two sets of guide grooves, auxiliary rods, and auxiliary rollers are provided, and the two sets of guide grooves are symmetrically arranged around the center of the mounting plate.

[0020] Preferably, the lower end of the intermediate shaft is provided with multiple water washing blades, which are arranged circumferentially around the intermediate shaft.

[0021] Beneficial effects: The present invention uses a cleaning roller that rotates in conjunction with the side wall of the washing tank to clean oil stains adhering to the side wall of the washing tank. At the same time, the auxiliary rod can approach and abut against the cleaning roller when rotating. When the cleaning roller and the auxiliary roller are in contact, the rotation of the cleaning roller drives the rotation of the auxiliary rod, which enables the auxiliary roller and the cleaning roller to clean each other, remove oil stains from the sides of the cleaning roller and the auxiliary roller, improve the washing effect of the polymer, and improve the washing efficiency of the polymer. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the installation disk and installation bracket in this invention.

[0024] Figure 3 This is a schematic diagram of the cleaning component and auxiliary component in this invention.

[0025] Figure 4 This is a schematic diagram of the control lever in this invention.

[0026] Figure 5 This is a schematic diagram of the internal structure of the installation disk in this invention.

[0027] Figure 6 This is a schematic diagram of the guide groove in this invention.

[0028] Figure 7 yes Figure 6 A schematic diagram of the structure at point A in the middle.

[0029] Figure 8 This is a schematic diagram of the structure of the adjustment component in this invention.

[0030] Figure 9 This is a schematic diagram showing the state when the auxiliary roller and the cleaning roller are in contact in this invention.

[0031] Figure 10 This is a schematic diagram showing the state of the auxiliary roller when it is located between the cleaning roller and the center of the mounting plate in this invention.

[0032] Figure label: 1. Washing tank; 11. Heating module; 12. Feed pipe; 13. Discharge pipe; 14. Control lever; 2. Auxiliary washing device; 21. Drive component; 22. Intermediate shaft; 23. Washing blades; 3. Mounting plate; 4. Cleaning assembly; 41. Mounting frame; 42. Cleaning roller; 5. Auxiliary assembly; 51. Auxiliary rod; 52. Auxiliary roller; 521. Slider; 6. Gear one; 61. Gear two; 62. Gear groove; 7. Guide groove; 71. Spring two; 72. Rack; 8. Adjustment assembly; 81. Adjusting rod; 811. Threaded groove; 82. Adjusting gear; 83. Adjusting block; 9. Spring one. Detailed Implementation

[0033] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0034] This invention discloses a water washing and separation device for polymers.

[0035] Reference Figures 1 to 10 The polymer washing and separation device includes a washing tank 1, an auxiliary washing device 2 on the washing tank 1, and a heating module 11 on the outside of the washing tank 1. The heating module 11 uses a resistance wire to heat the washing tank 1. The heating module 11 adopts a heating method common in the art, which will not be described in detail here. A feed pipe 12 and a discharge pipe 13 are provided on the washing tank 1. The feed pipe 12 is located at the upper end of the washing tank 1, and the discharge pipe 13 is located at the lower end of the washing tank 1.

[0036] The polymer to be washed is added to the washing tank 1 through the feed pipe 12. The washing tank 1 is then heated by the heating module 11 to raise the washing temperature above room temperature, thereby accelerating the dissolution or reaction of impurities and improving washing efficiency. Additionally, for polymers containing oil, heating the washing tank 1 by the heating module 11 disrupts the emulsion system and accelerates oil-water separation. Subsequently, the auxiliary washing device 2 agitates the polymer to separate impurities from the polymer. After washing, the polymer is discharged through the discharge pipe 13 for further processing.

[0037] Reference Figure 1 The auxiliary washing device 2 includes a drive component 21, an intermediate shaft 22, and washing blades 23. The drive component 21 is a motor and is located outside the washing tank 1. The output shaft of the drive component 21 is on the same straight line as the center line of the washing tank 1. In this embodiment, the interior of the washing tank 1 is a cylindrical cavity. The intermediate shaft 22 is rotatably mounted inside the washing tank 1 and is coaxial with the washing tank 1. The upper end of the intermediate shaft 22 extends to the outside of the washing tank 1 and connects to the output end of the drive component 21. The washing blades 23 are located at the lower end of the intermediate shaft 22 and are composed of multiple circumferentially arranged spiral blades, which are arranged in the same horizontal plane.

[0038] The drive unit 21 drives the water washing blades 23 to rotate through the intermediate shaft 22, and the water washing blades 23 stir and wash the polymer.

[0039] During the washing process, oil stains will adhere to the inner wall of the washing tank 1. To facilitate the cleaning of these oil stains and improve the washing effect on the polymer, a mounting plate 3 is installed outside the intermediate shaft 22. The mounting plate 3 can rotate with the intermediate shaft 22. A cleaning component 4 and an auxiliary component 5 are installed on the mounting plate 3. The cleaning component 4 is used to clean the oil stains adhering to the inner wall of the washing tank 1, and the auxiliary component 5 assists in the washing of the polymer.

[0040] Reference Figure 1 , Figure 2 , Figure 3 The cleaning assembly 4 includes a mounting frame 41 and a cleaning roller 42. The mounting frame 41 is connected to the side of the mounting plate 3, and the cleaning roller 42 is rotatably engaged with the mounting frame 41. Two sets of both the mounting frame 41 and the cleaning roller 42 are provided, and the two sets of mounting frames 41 and cleaning roller 42 are symmetrically arranged around the center of the mounting plate 3. The cleaning roller 42 is arranged vertically, that is, parallel to the intermediate shaft 22, and the side of the cleaning roller 42 abuts against the inner wall of the washing tank 1.

[0041] The intermediate shaft 22 rotates, driving the cleaning roller 42 to rotate via the mounting plate 3 and mounting bracket 41. Simultaneously, because the side of the cleaning roller 42 abuts against the inner wall of the washing tank 1, the friction between the cleaning roller 42 and the inner wall of the washing tank 1 causes the cleaning roller 42 to rotate relative to the inner wall of the washing tank 1 while moving with the mounting plate 3. Since the side of the cleaning roller 42 is always in contact with the inner wall of the washing tank 1, it squeezes the oil adhering to the inner wall of the washing tank 1, causing the oil adhering to the cleaning roller 42 to separate from the side wall of the washing tank 1 where it passes. Here, the cleaning roller 42 rotates based on the friction between itself and the inner wall of the washing tank 1. The purpose of using friction to drive the cleaning roller 42 to rotate is to maintain the contact force between the cleaning roller 42 and the inner wall of the washing tank 1, ensuring close contact and removing the oil adhering to the inner wall of the washing tank 1.

[0042] Reference Figure 1 , Figure 5 The mounting plate 3 is rotatably mounted inside the washing tank 1. The mounting plate 3 is rotatably positioned outside the intermediate shaft 22. Gear 6 is rotatably mounted inside the mounting plate 3, and gear 61 is coaxially mounted outside the intermediate shaft 22, meshing with gear 6. A toothed groove 62 is circumferentially formed inside the mounting plate 3, meshing with gear 6. When the intermediate shaft 22 rotates, gear 61 drives gear 6 to rotate, and gear 6 meshing with the toothed groove 62 drives the mounting plate 3 to rotate, allowing the mounting plate 3 to rotate with the intermediate shaft 22. Furthermore, the diameter of gear 61 is larger than that of gear 6 to adjust the transmission ratio between them, ensuring that the rotational speed of the mounting plate 3 is less than the rotational speed of the intermediate shaft 22. This allows the cleaning roller 42 to rotate slowly inside the washing tank 1, improving the cleaning roller 42's effectiveness in removing impurities adhering to the side wall of the washing tank 1.

[0043] In addition, since the polymer needs to be heated in the initial stage of mixing, and the heat is transferred to the polymer through the side wall of the washing tank 1, the polymer will continuously enter the rear of the cleaning roller 42 and come into contact with the inner wall of the cleaned washing tank 1 when the cleaning roller 42 rotates, which can improve the heating efficiency of the polymer.

[0044] Reference Figure 2 During the rotation of the cleaning roller 42, some polymer agglomerates will exist. When these polymer agglomerates are close to the side wall of the washing tank 1, the cleaning roller 42 can squeeze and break them up, so that they can fully contact the water, thereby improving the washing efficiency of the polymer.

[0045] The upper end of the cleaning roller 42 is located outside the polymer, meaning that the upper end of the cleaning roller 42 never comes into contact with the polymer during rotation, in order to ensure the stability of the fit between the cleaning roller 42 and the inner wall of the washing tank 1, so that the cleaning roller 42 rotates on its own while rotating with the mounting plate 3.

[0046] Reference Figure 2 , Figure 3 The auxiliary component 5 includes an auxiliary rod 51 and auxiliary rollers 52. The auxiliary rod 51 is connected to the bottom of the mounting plate 3 and is arranged horizontally. Multiple auxiliary rollers 52 are arranged below the auxiliary rod 51 and are arranged vertically, parallel to the intermediate shaft 22, i.e., located between the intermediate shaft 22 and the cleaning roller 42. When the mounting plate 3 rotates, the auxiliary rod 51 rotates accordingly, driving the auxiliary rollers 52 to rotate within the washing tank 1, assisting in agitating the polymer and ensuring sufficient contact between the polymer and water to remove impurities and improve the washing effect.

[0047] Reference Figure 6 , Figure 7 , Figure 8 A guide groove 7 is provided at the bottom of the mounting plate 3. The guide groove 7 is arc-shaped. The end of the auxiliary rod 51 engages with the guide groove 7, and the auxiliary rod 51 is slidably engaged with the guide groove 7, meaning that the auxiliary rod 51 can move within the guide groove 7. The auxiliary roller 52 is slidably engaged with the auxiliary rod 51, and the auxiliary roller 52 slides along the length direction of the auxiliary rod 51. An adjustment component 8 is provided inside the auxiliary rod 51, and a rack 72 is provided at the bottom of the mounting plate 3. When the adjustment component 8 engages with the rack 72, it drives the auxiliary roller 52 to move, thereby adjusting the position of the auxiliary roller 52. This, in turn, adjusts the distance between the auxiliary rollers 52.

[0048] Reference Figure 7 A second spring 71 is provided in the guide groove 7. The second spring 71 is a spring, with one end connected to the inner wall of the guide groove 7 and the other end connected to the auxiliary rod 51. The second spring 71 is used to drive the auxiliary rod 51 to move away from the rack 72. That is, in the initial state, under the action of the second spring 71, the auxiliary rod 51 moves away from the rack 72, and at this time the adjusting component 8 is not engaged with the rack 72.

[0049] During polymer washing, the initial rotation of the auxiliary rod 51 and its subsequent stabilization, or even after the rotation speed has stabilized, will affect the resistance experienced by the auxiliary rod 51. In other words, the resistance experienced by the auxiliary rod 51 changes with its rotational state. For example, in the initial stage of rotation and as the rotation speed gradually increases, the auxiliary rod 51 experiences a relatively large resistance value. As the rotation speed stabilizes or decreases, the resistance value gradually decreases.

[0050] When the resistance is high, the auxiliary rod 51 experiences a greater force. At this point, the resistance on the auxiliary rod 51 is greater than the elastic force of the spring element 71. The auxiliary rod 51 moves within the guide groove 7, while the adjusting component 8 gradually approaches the rack 72. As the adjusting component 8 approaches and engages with the rack 72, it drives the auxiliary rollers 52 to move, adjusting the distance between the auxiliary rollers 52. Subsequently, as the rotational speed of the auxiliary rod 51 increases, the resistance it experiences also changes, and the spacing between the auxiliary rollers 52 also changes, resulting in more uniform contact between the auxiliary rollers 52 and the polymer. This agitates the polymer in various locations within the washing tank 1, thereby improving the mixing effect of the polymer.

[0051] Furthermore, in order to adjust the resistance of the auxiliary rod 51 when assisting in washing the polymer, the rotation speed of the auxiliary rod 51 can be controlled intermittently, so that the resistance of the auxiliary rod 51 continuously changes, thereby continuously adjusting the distance between the auxiliary rollers 52, so that the auxiliary rod 51 can fully stir the polymer at each position.

[0052] A sensor is installed on the intermediate shaft 22. When the resistance experienced by the auxiliary rod 51 is greater, the torque experienced by the intermediate shaft 22 is also greater. A controller is installed on the washing tank 1, and the sensor is a torque sensor used to detect the torque value experienced by the intermediate shaft 22. The signal output terminal of the sensor is electrically connected to the signal receiving terminal of the controller, and the control terminal of the controller is electrically connected to the drive component 21. When the sensor detects a large torque on the intermediate shaft 22, it sends a signal to the controller, which then controls the drive component 21 to reduce the rotational speed of the intermediate shaft 22. Conversely, when the sensor detects a small torque on the intermediate shaft 22, it sends a signal to the controller, which then controls the drive component 21 to increase the rotational speed of the intermediate shaft 22. This achieves the adjustment of the rotational speed of the auxiliary rod 51.

[0053] Reference Figure 2 , Figure 3 Two sets of guide grooves 7, auxiliary rods 51, and auxiliary rollers 52 are provided, and the two sets of auxiliary rods 51 are respectively set one-to-one with the two sets of guide grooves 7. The two sets of guide grooves 7 are symmetrically arranged around the center of the mounting plate 3. By setting two sets of auxiliary rollers 52, the stirring and washing effect on the polymer is further improved.

[0054] Reference Figure 6 , Figure 7 , Figure 8The adjusting assembly 8 includes an adjusting rod 81, an adjusting gear 82, and an adjusting block 83. The adjusting rod 81 is rotatably mounted inside the auxiliary rod 51, and its end extends to the outside of the auxiliary rod 51 and connects to the adjusting gear 82. The adjusting gear 82 is coaxially arranged with the adjusting rod 81. The adjusting block 83 is slidably sleeved on the outside of the adjusting rod 81, that is, the adjusting block 83 slides along the length of the auxiliary rod 51 inside the auxiliary rod 51. A threaded groove 811 is provided on the outside of the adjusting rod 81, and the adjusting rod 81 is threadedly engaged with the adjusting block 83 through the threaded groove 811. The rack 72 is arc-shaped and located on one side of the guide groove 7. A slider 521 is provided at the upper end of the auxiliary roller 52, and the slider 521 is slidably sleeved on the outside of the adjusting rod 81. A spring 9 is provided between the slider 521 and the adjusting block 83, and between two adjacent sliders 521. The spring 9 is a spring. The spring element 9 is used to move adjacent sliders 521 away from each other and to move the adjusting block 83 away from sliders 521.

[0055] When the adjusting rod 81 moves closer to the rack 72, the adjusting gear 82 moves until it engages with the rack 72. The adjusting gear 82 drives the adjusting rod 81 to rotate. The rotation of the adjusting rod 81 drives the adjusting block 83 to move closer to the slider 521, compressing the spring 9 and adjusting the distance between the sliders 521, thereby adjusting the distance between the auxiliary rollers 52.

[0056] Reference Figure 6 The center of the guide groove 7 is spaced apart from the center of the mounting plate 3. The distance between the guide groove 7 and the center of the mounting plate 3 gradually decreases along the rotation direction away from the mounting plate 3, so that the distance between the end of the auxiliary rod 51 and the center of the mounting plate 3 gradually changes as the auxiliary rod 51 moves relative to the mounting plate 3. The center of the guide groove 7 is spaced apart from the center of the mounting plate 3, and the auxiliary rod 51 is set in the direction towards the center of the guide groove 7, that is, the end of the auxiliary rod 51 near the mounting plate 3 is inclined in the direction of rotation of the mounting plate 3.

[0057] As the adjusting rod 81 rotates relative to the mounting plate 3, it drives the auxiliary roller 52 to gradually approach the cleaning roller 42. When the auxiliary roller 52, which is close to the cleaning roller 42, comes into contact with the cleaning roller 42, that is, when... Figure 9The state shown is as follows: Adjusting rod 81 moves adjusting block 83 closer to slider 521, causing the distance between sliders 521 to gradually decrease. At this time, the sides of multiple auxiliary rollers 52 abut against each other. When cleaning roller 42 rotates, it simultaneously drives multiple auxiliary rollers 52 to rotate synchronously. At the same time, the sides of cleaning roller 42 abut against the sides of auxiliary rollers 52, and the sides of adjacent auxiliary rollers 52 abut against each other, which can achieve mutual cleaning between cleaning roller 42 and auxiliary rollers 52, removing oil stains adhering to the surface of cleaning roller 42 or auxiliary roller 52. In addition, springs 9 are provided between adjacent sliders 521 and between adjusting block 83 and slider 521. After the auxiliary rollers 52 abut against the cleaning roller 42, even if adjusting rod 81 continues to rotate, adjusting block 83 can still move closer to slider 521, avoiding the phenomenon of adjusting rod 81 getting stuck due to mutual abutment between auxiliary rollers 52.

[0058] As the adjusting rod 81 continues to move relative to the mounting plate 3, and the distance between the guide groove 7 and the center of the mounting plate 3 gradually decreases, both the adjusting rod 81 and the auxiliary roller 52 will move towards the center of the mounting plate 3. This allows the auxiliary roller 52, which is closer to the cleaning roller 42, to move to the line connecting the center of the cleaning roller 42 and the center of the mounting plate 3. At this point, the auxiliary roller 52, the cleaning roller 42, and the center of the mounting plate 3 are on the same straight line. Figure 10 The state shown. In addition, since the auxiliary rod 51 is set towards the center of the guide groove 7, the multiple auxiliary rollers 52 are in an inclined state relative to the mounting frame 41. The inclined multiple auxiliary rollers 52 can push the polymer to move in the washing tank 1, so as to more evenly stir the polymer and improve the washing effect of the polymer.

[0059] Reference Figure 4 When the resistance of the auxiliary roller 52 decreases, the distance between the auxiliary rollers 52 is adjusted to facilitate the rotation of the auxiliary rod 51 relative to the mounting plate 3. A control stop rod 14 is provided inside the washing tank 1. The control stop rod 14 is located at the end of the mounting frame 41 away from the mounting plate 3. The control stop rod 14 is set in the vertical direction, and the upper end of the control stop rod 14 is rotatably engaged with the washing tank 1. A torsion spring (not shown in the figure) is provided at the connection between the control stop rod 14 and the washing tank 1 to connect the two. The torsion spring is used to drive the control stop rod 14 to be in a vertical state.

[0060] When the auxiliary rod 51 moves to the control stop 14, the control stop 14 abuts against the adjusting rod 81, causing the adjusting rod 81 to slide within the guide groove 7 until the auxiliary roller 52, which is close to the cleaning roller 42, moves to the line connecting the center of the cleaning roller 42 and the center of the mounting plate 3, i.e., the auxiliary roller 52, the center of the cleaning roller 42, and the center of the mounting plate 3 are on the same straight line. When the mounting frame 41 moves to the control stop 14, the mounting frame 41 cooperates with the control stop 14, causing the control stop 14 to rotate until both the mounting frame 41 and the auxiliary rod 51 have passed the control stop 14. At this point, the auxiliary rod 51 moves back to its initial position under the action of the spring 71. When the auxiliary rod 51 passes the control stop 14 again, it can move again within the guide groove 7 to adjust the distance between the auxiliary rollers 52. During the movement of the auxiliary rod 51 within the guide groove 7, the distance between the auxiliary rollers 52 also changes continuously, further improving the auxiliary washing effect of the auxiliary rollers 52 on the polymer.

[0061] By setting the control lever 14, the distance between the auxiliary rollers 52 can be adjusted even if the rotation speed of the mounting plate 3 remains unchanged when the mounting frame 41 passes the control lever 14.

[0062] The implementation principle of this invention is as follows: the polymer to be cleaned is placed in the washing tank 1, and the driving component 21 drives the washing blades 23 to rotate through the intermediate shaft 22 to stir the polymer, so that it is in full contact with water and is washed. The intermediate shaft 22 drives the cleaning roller 42 to rotate through the mounting plate 3 and the mounting frame 41. While the cleaning roller 42 rotates, it rotates on its own to clean the oil stains adhering to the side wall of the washing tank 1. When the auxiliary rod 51 rotates to abut against the control stop 14, the control stop 14 drives the auxiliary rod 51 to slide within the guide groove 7. The auxiliary rod 51 drives the adjusting gear 82 to move and mesh with the rack 72. Under the action of the rack 72, the adjusting gear 82 rotates. The adjusting gear 82 drives the slider 521 to move closer to each other through the adjusting rod 81 and the adjusting block 83, thereby driving the auxiliary rollers 52 to move closer to each other. When the auxiliary rollers 52 abut against the cleaning roller 42, multiple auxiliary rollers 52 also abut against each other. The rotation of the cleaning roller 42 drives the auxiliary rollers 52 to rotate synchronously, achieving mutual cleaning and removing the oil stains adhering to the surfaces of the cleaning roller 42 and the auxiliary rollers 52. When the mounting bracket 41 moves to the control stop 14, it drives the control stop... The lever 14 rotates until it passes the control stop lever 14. After the auxiliary lever 51 separates from the control stop lever 14, the spring 71 drives the auxiliary lever 51 to move and reset in the guide groove 7. This process is repeated to continuously adjust the distance between the auxiliary rollers 52. When the auxiliary rollers 52 and the cleaning rollers 42 come into contact, they can clean each other to remove the oil stains attached to the auxiliary rollers 52 and the cleaning rollers 42. The cleaning rollers 42 come into contact with the inner wall of the washing tank 1 to clean the oil stains attached to the inner wall of the washing tank 1, thus preventing the presence of oil stains in the washing tank 1. At the same time, the auxiliary lever 51 and the cleaning rollers 42 assist in stirring the polymer, so that the polymer and water can come into full contact, thereby improving the washing efficiency of the polymer.

[0063] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A water washing and separation device for polymers, comprising a washing tank and an auxiliary washing device located on the washing tank, characterized in that, The auxiliary washing device includes: a drive unit installed outside the washing tank, and an intermediate shaft connected to the output shaft of the drive unit and extending into the washing tank; a mounting plate that rotates with the intermediate shaft is sleeved on the outside of the intermediate shaft; a cleaning assembly is provided on the mounting plate, the cleaning assembly including: a mounting bracket connected to the mounting plate, and a cleaning roller that rotates with the mounting bracket, the cleaning roller being parallel to the intermediate shaft and its side abutting against the inner wall of the washing tank; the cleaning roller rotates with the intermediate shaft, and when the cleaning roller rotates relative to the washing tank, it rotates under the action of friction to remove the oil stains adhering to the inner wall of the washing tank, while simultaneously squeezing and breaking up the polymer clumps located on the inner wall of the washing tank.

2. The water washing and separation apparatus for polymers according to claim 1, characterized in that, An auxiliary rod is installed at the bottom of the mounting plate, and multiple auxiliary rollers are arranged on the auxiliary rod in a vertical direction.

3. The water washing and separation apparatus for polymers according to claim 2, characterized in that, The bottom of the mounting plate is provided with a guide groove, which is arc-shaped. The end of the auxiliary rod is slidably engaged with the guide groove. The auxiliary roller is slidably set along the length of the auxiliary rod. An adjustment component is provided inside the auxiliary rod. The bottom of the mounting plate is provided with a rack. When the adjustment component moves to engage with the rack, it is used to adjust the distance between the auxiliary rollers. An elastic element II is provided inside the guide groove and connected to the auxiliary rod. The elastic element II is used to drive the auxiliary rod to move away from the rack.

4. The water washing and separation apparatus for polymers according to claim 3, characterized in that, The rack and guide groove are concentrically arranged. The adjustment assembly includes: an adjustment rod rotatably mounted in the auxiliary rod, an adjustment gear coaxially arranged at the end of the adjustment rod, and an adjustment block slidably sleeved on the outside of the adjustment rod. The adjustment rod has a threaded groove that is threaded to the adjustment block. A slider is provided on the auxiliary roller. The slider is slidably sleeved on the outside of the adjustment rod. A spring is provided between the slider and the adjustment block and between two adjacent sliders.

5. The water washing and separation apparatus for polymers according to claim 4, characterized in that, The distance between the guide groove and the center of the mounting plate gradually decreases along the rotation direction away from the mounting plate. The center of the guide groove and the center of the mounting plate are arranged at intervals. The auxiliary rod is set in the direction towards the center of the guide groove. When the auxiliary roller and the cleaning roller abut, the adjusting gear and rack cooperate to drive multiple auxiliary rollers to abut against each other, so that the cleaning roller rotates and drives multiple auxiliary rollers to rotate.

6. The water washing and separation apparatus for polymers according to claim 1, characterized in that, There are two sets of mounting frames and cleaning rollers, and the two sets of mounting frames and cleaning rollers are symmetrically arranged around the center of the mounting plate.

7. The water washing and separation apparatus for polymers according to claim 5, characterized in that, A control lever is installed inside the washing tank. A torsion spring is installed at the connection between the control lever and the washing tank to drive the control lever to rotate to a vertical position. An auxiliary rod is located below the mounting frame. The control lever abuts against the auxiliary rod to drive the auxiliary rod to rotate and move closer to the mounting frame. When the mounting frame abuts against the control lever, it drives the control lever to rotate, causing the control lever to separate from the auxiliary rod. Then, the second spring moves the auxiliary rod away from the mounting frame.

8. The water washing and separation apparatus for polymers according to claim 7, characterized in that, The mounting plate is rotatably assembled inside the washing tank. The mounting plate is rotatably set outside the intermediate shaft. Gear 1 is rotatably set inside the mounting plate. Gear 2, which meshes with gear 1, is coaxially set outside the intermediate shaft. The mounting plate has a toothed groove in the inner circumference. Gear 1 meshes with the toothed groove. The diameter of gear 2 is larger than the diameter of gear 1.

9. The water washing and separation apparatus for polymers according to claim 3, characterized in that, Two sets of guide grooves, auxiliary rods, and auxiliary rollers are provided, with the two sets of guide grooves arranged symmetrically around the center of the mounting plate.

10. The water washing and separation apparatus for polymers according to claim 1, characterized in that, Multiple water washing blades are provided at the lower end of the intermediate shaft, and the multiple water washing blades are arranged circumferentially around the intermediate shaft.

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