Waste plastic particle rinsing, separating and precipitating device

Abstract

The utility model relates to a rinsing, separating and precipitating device for waste plastic particles. The rinsing, separating and precipitating device comprises a cleaning pool, a spiral discharging mechanism arranged at the bottom of the cleaning pool, a stirring mechanism arranged at the top of the cleaning pool and a stirring and sweeping mechanism located at the end of the cleaning pool. A feeding cavity is formed in one end of the cleaning pool, a discharging cavity is formed in the other end of the cleaning pool, and a discharging outlet is formed in the bottom of the cleaning pool; the material stirring mechanism comprises a plurality of first material stirring assemblies and second material stirring assemblies which are located between the feeding cavity and the discharging cavity, and a material stirring driving unit for driving the first material stirring assemblies and the second material stirring assemblies to rotate, and the second material stirring assemblies are close to the discharging cavity; the shifting and sweeping mechanism is located on the side, away from the second shifting assembly, of the discharging cavity. According to the rinsing, separating and precipitating device for the waste plastic particles, the problem that the plastic particles cannot smoothly slide into the discharging cavity from the shifting plate can be solved, and the rinsing and discharging efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste plastic barrel resource processing, in particular to a waste plastic particle rinsing, separation and precipitation device. Background Art

[0002] In order to save resources and improve the utilization rate of waste plastic barrels, they are usually crushed and processed into plastic pellets after recycling. The recycling process includes crushing, cleaning, rinsing, drying, etc. During rinsing, a cleaning tank is generally used for immersion rinsing. Cleaning liquid is injected into the cleaning tank, and the plastic pellets after preliminary cleaning are poured into the cleaning tank. Due to the different densities of plastic and impurities, the plastic pellets float in the cleaning liquid, while the impurities settle to the bottom of the cleaning tank. Under the agitation of the material shifting assembly, the plastic pellets flow from the feed chamber to the discharge chamber and are cleaned in the process. After cleaning, the plastic pellets are shifted through the material shifting assembly and dropped into the discharge chamber. However, there are water stains on the surface of the plastic pellets, and they stick to each other on the shifting plate of the material shifting assembly. They cannot slide smoothly from the shifting plate into the discharge chamber, resulting in a decrease in the efficiency of rinsing and discharging. Utility Model Content

[0003] In response to the above-mentioned problems, the purpose of the present invention is to design a waste plastic particle rinsing, separation and sedimentation device, which can solve the problem that plastic particles cannot slide smoothly from the paddle into the discharge chamber, thereby improving the efficiency of rinsing and discharging.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A device for rinsing, separating and settling waste plastic particles is designed, comprising a cleaning tank, a spiral discharge mechanism arranged at the bottom of the cleaning tank, a prying mechanism arranged at the top of the cleaning tank, and a prying and sweeping mechanism located at the end of the cleaning tank; a feed chamber is provided at one end of the cleaning tank, a discharge chamber is provided at the other end of the cleaning tank, and a discharge outlet is provided at the bottom of the cleaning tank; the prying mechanism comprises a plurality of first prying assemblies and a second prying assemblies located between the feed chamber and the discharge chamber, and a prying drive unit for driving the first prying assemblies and the second prying assemblies to rotate, and the second prying assembly is close to the discharge chamber; the prying and sweeping mechanism is located on the side of the discharge chamber away from the second prying assembly.

[0006] The waste plastic particle rinsing, separation, and sedimentation device designed in this scheme utilizes the different buoyancy of plastic particles and impurities in the cleaning fluid to separate them. The feed chamber connects to the outlet of the previous process, and plastic particles mixed with impurities enter the cleaning tank from the feed chamber. Driven by the first paddle assembly, the plastic particles move toward the discharge chamber. During this process, the plastic particles are continuously agitated and cleaned, floating in the cleaning fluid. Due to their high density, the impurities gradually settle to the bottom of the cleaning tank, where they are discharged to the discharge outlet via a spiral discharge mechanism. The plastic particles floating in the cleaning fluid are scooped out of the liquid surface by the paddle of the second paddle assembly. Some plastic particles fall directly into the discharge chamber, while others adhere to the paddle of the second paddle assembly. The paddle mechanism then sweeps the plastic particles on the paddle into the discharge chamber. This design solves the problem of plastic particles not being able to slide smoothly off the paddle into the discharge chamber, which reduces the efficiency of rinsing and discharging.

[0007] Furthermore, the first material shifting assembly includes a first rotating roller rotatably arranged on the side wall of the cleaning tank, and a first shifting plate arranged in a circular array on the periphery of the first rotating roller, one of the first rotating rollers is drive-connected to the material shifting drive unit, and several of the first rotating rollers are transmission-connected to each other.

[0008] The first rotating rollers are connected by belts or chains. The material-dispensing drive unit consists of a drive motor and a reducer. The drive motor drives the first rotating rollers connected to it via the reducer, thereby achieving synchronous rotation of the first rotating rollers. The first shift plate rotates under the drive of the first rotating rollers, and the plastic particles floating in the cleaning liquid are continuously buoyed by the stirring of the first shift plate and move toward the discharge chamber. To reduce the resistance of the first shift plate's rotation, a gap for the cleaning liquid to flow through can be provided in the middle of the first shift plate. This ensures agitation of the cleaning liquid while reducing the load on the drive unit, thereby saving energy.

[0009] Furthermore, the second material selection assembly includes a second rotating roller rotatably arranged on the side wall of the cleaning tank, and a second selector plate arranged in a circumferential array on the outer periphery of the second rotating roller, and a plurality of water leakage holes are opened on the second selector plate, and the second rotating roller is transmission-connected to the first rotating roller.

[0010] The second rotating roller is connected to the first rotating roller through a belt or chain, so that the material digging drive unit drives the first material digging assembly and the second material digging assembly at the same time; the edge of the second digging plate is close to the entrance of the discharge chamber, and a drainage hole covering the entire second digging plate is opened on it to drain water. The second rotating roller drives the second digging plate to rotate, and the second digging plate picks up the plastic particles floating in the cleaning liquid. When the second digging plate rotates out of the liquid surface, some of the plastic particles on the second digging plate fall into the discharge chamber.

[0011] Furthermore, the second shifting plate includes a straight shifting plate connected to the second rotating roller, and an inclined shifting plate connected to the straight shifting plate.

[0012] During the rotation of the second rotating roller, when the straight plate of the second plate close to the discharge chamber is in a horizontal position, the downwardly inclined edge of the inclined plate is just flush with the edge of the discharge chamber entrance, so that the plastic particles on the inclined plate can slide into the discharge chamber.

[0013] Furthermore, the sweeping mechanism includes a bracket arranged on the cleaning tank, a driving cylinder located on the bracket, a sweeping plate connected to the driving shaft of the driving cylinder, and an induction component arranged on the side wall of the cleaning tank and facing the second sweeping plate.

[0014] Flexible bristles are connected to the side of the sweeping plate facing the cleaning tank. When the sensing component senses that the second plate has rotated to the set position, it transmits a signal to the control system, and the driving cylinder immediately retracts and contracts to drive the sweeping plate to perform a sweeping action, sweeping the plastic particles on the second plate into the discharge chamber, thereby improving the discharge efficiency.

[0015] Furthermore, the sensing component includes a first sensing unit and a second sensing unit, and a first sensing block that can be sensed by the first sensing unit and a second sensing block that can be sensed by the second sensing unit are provided on a side of the flat dial plate close to the sensing component.

[0016] The first sensing unit and the second sensing unit can adopt proximity switches or photoelectric beam switches. During the rotation of the second rotating roller, when the first sensing unit senses the first sensing block, the driving cylinder moves the sweeping plate toward the second rotating roller and extends between two adjacent second shift plates. When the second sensing unit senses the second sensing block, the downwardly inclined edge of the inclined shift plate close to the discharge chamber is just flush with the edge of the discharge chamber entrance, and the driving cylinder drives the sweeping plate to retract, thereby sweeping the plastic particles remaining on the second shift plate into the discharge chamber.

[0017] Furthermore, the bottom surface of the cleaning tank is an arc-shaped bottom surface, the discharge outlet is located on the arc-shaped bottom surface, and the spiral discharge mechanism includes a discharge drive motor arranged at the end of the cleaning tank, and a spiral rod connected to the discharge drive motor and passing through the arc-shaped bottom surface.

[0018] The bottom surface of the cleaning tank is an arc-shaped bottom surface, and it is connected to the vertical side wall of the cleaning tank through an inclined side wall, so that impurities can gather on the arc-shaped bottom surface. The discharge drive motor drives the screw rod to rotate, and the impurities gathered on the arc-shaped bottom surface are gradually discharged to the discharge outlet for collection.

[0019] Further, the cleaning tank is provided with a collection conveying mechanism on the side, the collection conveying mechanism comprises a conveying cavity communicated with the discharge outlet, and a spiral conveying assembly, and a discharge collection port is arranged at one end of the conveying cavity away from the discharge outlet.

[0020] The collection conveying mechanism is arranged in butt joint below the discharge outlet, the conveying cavity is arranged in an inclined mode, the bottom of the conveying cavity is connected with the discharge outlet, and the top of the conveying cavity is provided with the discharge collection port, the discharge collection port can be sleeved with a corresponding collection container, and the height of the discharge collection port needs to be higher than the height of the liquid surface of the cleaning tank; the spiral conveying assembly is composed of a driving motor arranged at the top end and a spiral rod penetrating through the conveying cavity, the driving motor drives the spiral rod to rotate, so that the impurities at the bottom of the conveying cavity move upwards to the discharge collection port at the top, and then fall into the collection container from the discharge collection port.

[0021] Compared with the prior art, the cleaning tank has the beneficial effects that:

[0022] The waste plastic particle rinsing, separating and precipitating device designed in the scheme utilizes the different buoyancy of the plastic particles and impurities in the cleaning liquid to complete the separation of the plastic particles and the impurities. The feeding cavity is connected with the outlet of the previous process, the plastic particles mixed with impurities enter the cleaning tank from the feeding cavity, under the stirring of the first material stirring assembly, the plastic particles move to the discharge cavity, in the process, the plastic particles are continuously stirred and cleaned and float in the cleaning liquid, the impurities in the plastic particles are gradually precipitated to the bottom of the cleaning tank, and the impurities are discharged to the discharge outlet through the spiral discharge mechanism at the bottom of the cleaning tank; the plastic particles floating in the cleaning liquid are fished out of the liquid surface by the scraping plate of the second material stirring assembly, part of the plastic particles directly fall into the discharge cavity, and the other part of the plastic particles are adhered to the scraping plate of the second material stirring assembly, and the plastic particles on the scraping plate are swept to the discharge cavity through cooperation of the sweeping mechanism. Through the design, the problem that the plastic particles cannot smoothly slide off the scraping plate and fall into the discharge cavity is solved, and the rinsing and discharging efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structural diagram of the waste plastic particle rinsing, separating and precipitating device in an embodiment of the utility model.

[0024] Figure 2 It is a structural diagram of the inside of the cleaning tank in an embodiment of the utility model.

[0025] Figure 3 It is a structural diagram of the second material stirring assembly in an embodiment of the utility model.

[0026] Figure 4 It is Figure 1 It is a local enlarged view of A in the figure.

[0027] Illustration: 1, cleaning pool; 2, spiral discharging mechanism; 3, poking mechanism; 4, poking and sweeping mechanism; 5, collecting and conveying mechanism; 11, feeding cavity; 12, discharging cavity; 13, discharging outlet; 14, arc-shaped bottom surface; 21, discharging driving motor; 22, screw rod; 31, first poking assembly; 32, second poking assembly; 33, poking driving unit; 41, support; 42, driving cylinder; 43, poking and sweeping plate; 44, sensing assembly; 51, conveying cavity; 52, spiral conveying assembly; 53, discharging collecting port; 311, first rotating roller; 312, first poking plate; 321, second rotating roller; 322, second poking plate; 441, first sensing unit; 442, second sensing unit; 3221, water leakage hole; 3222, flat poking plate; 3223, inclined poking plate; 3224, first sensing block; 3225, second sensing block. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein.

[0029] As Figures 1 to 4 shown, the present embodiment provides a waste plastic particle rinsing, separating and precipitating device, which comprises a cleaning pool 1, a spiral discharging mechanism 2 arranged at the bottom of the cleaning pool 1, a poking mechanism 3 arranged at the top of the cleaning pool 1, and a poking and sweeping mechanism 4 arranged at the end of the cleaning pool 1; one end of the cleaning pool 1 is provided with a feeding cavity 11, the other end of the cleaning pool 1 is provided with a discharging cavity 12, and the bottom of the cleaning pool 1 is provided with a discharging outlet 13; the poking mechanism 3 comprises a plurality of first poking assemblies 31 and second poking assemblies 32 arranged between the feeding cavity 11 and the discharging cavity 12, and a poking driving unit 33 for driving the first poking assemblies 31 and the second poking assemblies 32 to rotate, and the second poking assemblies 32 are arranged close to the discharging cavity 12; the poking and sweeping mechanism 4 is arranged on the side of the discharging cavity 12 away from the second poking assemblies 32.

[0030] The waste plastic particle rinsing, separation and sedimentation device provided in this embodiment utilizes the different buoyancy of plastic particles and impurities in the cleaning liquid to complete the separation of plastic particles and impurities. The feed chamber 11 is connected to the outlet of the previous process, and the plastic particles mixed with impurities enter the cleaning tank 1 from the feed chamber 11. Under the stirring of the first material-splitting component 31, the plastic particles move to the discharge chamber 12. During this process, the plastic particles are continuously stirred and cleaned and float in the cleaning liquid. Due to their high density, the impurities therein gradually settle to the bottom of the cleaning tank 1. The impurities are discharged to the discharge outlet 13 through the spiral discharge mechanism 2 at the bottom of the cleaning tank 1; the plastic particles floating in the cleaning liquid are picked up and separated from the liquid surface by the paddle of the second material-splitting component 32. A part of the plastic particles directly fall into the discharge chamber 12, and the other part of the plastic particles adhere to the paddle of the second material-splitting component 32. The plastic particles on the paddle are swept into the discharge chamber 12 by the cooperation of the paddle mechanism 4. This design solves the problem that the plastic particles cannot slide smoothly from the paddle into the discharge chamber 12, resulting in reduced efficiency of rinsing and discharging.

[0031] like Figure 1 As shown, the first material-diverting assembly 31 includes a first rotating roller 311 rotatably mounted on the sidewall of the cleaning tank 1 via a bearing seat, and a first diverter plate 312 arranged in a circumferential array around the first rotating roller 311. One of the first rotating rollers 311 is drivingly connected to a diverter drive unit 33, and the first rotating rollers 311 are connected to each other in a transmission manner. The number of first diverter assemblies 31 is determined based on the size of the cleaning tank and actual needs. In this embodiment, there are four sets of first diverter assemblies 31. The four first rotating rollers 311 are connected to each other via a belt or chain. The diverter drive unit 33 consists of a drive motor and a reducer. The drive motor drives the first rotating rollers 311 connected to it through the reducer, thereby achieving synchronous rotation of the four first rotating rollers 311. In addition, the number of diverter drive units 33 can be increased based on the number of first material-diverting assemblies 31. For example, each diverter drive unit 33 can independently drive one first material-diverting assembly 31, or each diverter drive unit 33 can drive two first material-diverting assemblies 31. Driven by the first rotating roller 311, the first shift plate 312 rotates, stirring the plastic particles floating in the cleaning liquid and causing them to sink and float, moving toward the discharge chamber 12. To reduce resistance to the rotation of the first shift plate 312, a gap can be provided in the middle of the first shift plate 312 for the cleaning liquid to flow through. This ensures agitation of the cleaning liquid while reducing the load on the drive unit, thereby saving energy.

[0032] like Figure 1 and Figure 3As shown, the second material-dividing assembly 32 includes a second rotating roller 321 rotatably arranged on the side wall of the cleaning tank through a bearing seat, and a second dial plate 322 arranged in a circumferential array on the outer periphery of the second rotating roller 321. The second dial plate 322 is provided with a plurality of water leakage holes 3221. The second rotating roller 321 and the first rotating roller 311 are connected to each other through a belt or a chain, so that the material-dividing driving unit 33 can simultaneously drive the first material-dividing assembly 31 and the second material-dividing assembly 32; the edge of the second dial plate 322 is close to the entrance of the discharge chamber 12, and is provided with water leakage holes 322 covering the entire second dial plate 322. 1, to drain water, the second rotating roller 321 drives the second dial plate 322 to rotate, and the second dial plate 322 scoops up the plastic particles floating in the cleaning liquid. The second dial plate 322 includes a straight dial plate 3222 connected to the second rotating roller 321, and an inclined dial plate 3223 connected to the straight dial plate 3222. When the second dial plate 322 close to the discharge chamber 12 is rotated out of the liquid surface and the straight dial plate 3222 is in a horizontal position, the downwardly inclined edge of the inclined dial plate 3223 is just flush with the edge of the inlet of the discharge chamber 12, so that the plastic particles on the inclined dial plate 3223 can slide into the discharge chamber 12.

[0033] like Figure 1 and Figure 4 As shown, the sweeping mechanism 4 includes a bracket 41 disposed on the cleaning tank 1, a driving cylinder 42 located on the bracket 41, a sweeping plate 43 connected to the drive shaft of the driving cylinder 42, and a sensing assembly 44 disposed on the side wall of the cleaning tank 1 and facing the second sweeping plate 322. The sensing assembly 44 includes a first sensing unit 441 and a second sensing unit 442. A first sensing block 3224, which can be sensed by the first sensing unit 441, and a second sensing block 3225, which can be sensed by the second sensing unit 442, are provided on the side of the straight sweeping plate 3222 near the sensing assembly 44. The sweeping plate 43 is connected to the side facing the cleaning tank 1 with flexible bristles. When the sensing component 44 senses that the second paddle plate 322 has rotated to the set position, a signal is transmitted to the control system, and the driving cylinder 42 is immediately extended and retracted to drive the sweeping plate 43 to perform a sweeping action. Specifically, the first sensing unit 441 and the second sensing unit 442 can adopt proximity switches or photoelectric beam switches. During the rotation of the second rotating roller 321, when the first sensing unit 441 senses the first sensing block 3224, the driving cylinder 42 moves the sweeping plate 43 toward the second rotating roller 321 and extends between two adjacent second paddle plates 322. When the second sensing unit 442 senses the second sensing block 3225, the downwardly inclined edge of the inclined paddle plate 3223 of the second paddle plate 322 close to the discharge chamber 12 is just flush with the edge of the entrance of the discharge chamber 12, and the driving cylinder 42 drives the sweeping plate 43 to retract, thereby sweeping the plastic particles remaining on the second paddle plate 322 into the discharge chamber 12, thereby improving the discharge efficiency.

[0034] like Figure 2 As shown, the bottom surface of the cleaning tank 1 is an arc-shaped bottom surface 14, and it is connected to the vertical side wall of the cleaning tank 1 through an inclined side wall, so that impurities can gather on the arc-shaped bottom surface 14, and the discharge outlet 13 is located on the arc-shaped bottom surface 14. The spiral discharge mechanism 2 includes a discharge drive motor 21 arranged at the end of the cleaning tank 1, and a spiral rod 22 connected to the discharge drive motor 21 and passing through the arc-shaped bottom surface 14. The spiral rod 22 is rotatably arranged at both ends of the cleaning tank 1 through sealed bearings. The discharge drive motor 21 drives the spiral rod 22 to rotate, and the impurities gathered on the arc-shaped bottom surface 14 are gradually discharged to the discharge outlet 13 for collection.

[0035] like Figure 1 and Figure 2 As shown, a collecting and conveying mechanism 5 is docked below the discharge outlet 13, and the collecting and conveying mechanism 5 is used to collect and process the impurities discharged from the discharge outlet 13. The collecting and conveying mechanism 5 includes a conveying chamber 51 connected to the discharge outlet 13, and a spiral conveying assembly 52. ​​A discharge collecting port 53 is provided at one end of the conveying chamber 51 away from the discharge outlet 13. The conveying chamber 51 is tilted, with its bottom connected to the discharge outlet 13 and a discharge collecting port 53 provided at its top. The discharge collecting port 53 can be fitted with a corresponding collection container, and the height of the discharge collecting port 53 must be higher than the height of the liquid level in the cleaning tank 1. The spiral conveying assembly 52 consists of a driving motor provided at the top and a spiral rod running through the conveying chamber. The driving motor drives the spiral rod to rotate, so that the impurities at the bottom of the conveying chamber 51 move upward toward the discharge collecting port 53 at the top, and then fall into the collection container from the discharge collecting port 53.

[0036] In the description of the present invention, it should be understood that terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referenced. Therefore, the term "first," "second," and the like may explicitly or implicitly include one or more of the features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0038] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for rinsing, separating and settling waste plastic particles, characterized in that: It includes a cleaning tank, a spiral discharging mechanism arranged at the bottom of the cleaning tank, a material digging mechanism arranged at the top of the cleaning tank, and a sweeping mechanism located at the end of the cleaning tank; a feed cavity is provided at one end of the cleaning tank, a discharge cavity is provided at the other end of the cleaning tank, and a discharge outlet is provided at the bottom of the cleaning tank; the material digging mechanism includes a plurality of first and second material digging components located between the feed cavity and the discharge cavity, and a material digging drive unit that drives the first and second material digging components to rotate, and the second material digging component is close to the discharge cavity; the sweeping mechanism is located on the side of the discharge cavity away from the second material digging component.

2. The waste plastic particle rinsing, separation and sedimentation device according to claim 1, characterized in that: The first material shifting assembly includes a first rotating roller rotatably arranged on the side wall of the cleaning tank, and a first shifting plate arranged in a circumferential array on the periphery of the first rotating roller, one of the first rotating rollers is drive-connected to the material shifting drive unit, and several of the first rotating rollers are transmission-connected to each other.

3. The waste plastic particle rinsing, separation and sedimentation device according to claim 2, characterized in that: The second material shifting assembly includes a second rotating roller rotatably arranged on the side wall of the cleaning tank, and a second shifting plate arranged in a circumferential array on the outer periphery of the second rotating roller. The second shifting plate is provided with a plurality of water leakage holes, and the second rotating roller is transmission-connected to the first rotating roller.

4. The waste plastic particle rinsing, separation and sedimentation device according to claim 3, characterized in that: The second shifting plate includes a straight shifting plate connected to the second rotating roller and an inclined shifting plate connected to the straight shifting plate.

5. The waste plastic particle rinsing, separation and sedimentation device according to claim 4, characterized in that: The sweeping mechanism includes a bracket arranged on the cleaning tank, a driving cylinder located on the bracket, a sweeping plate connected to the driving shaft of the driving cylinder, and an induction component arranged on the side wall of the cleaning tank and facing the second sweeping plate.

6. The waste plastic particle rinsing, separation and sedimentation device according to claim 5, characterized in that: The sensing component includes a first sensing unit and a second sensing unit. A first sensing block that can be sensed by the first sensing unit and a second sensing block that can be sensed by the second sensing unit are provided on a side of the flat dial plate close to the sensing component.

7. The waste plastic particle rinsing, separation and sedimentation device according to claim 1, characterized in that: The bottom surface of the cleaning tank is an arc-shaped bottom surface, the discharge outlet is located on the arc-shaped bottom surface, and the spiral discharge mechanism includes a discharge drive motor arranged at the end of the cleaning tank, and a spiral rod connected to the discharge drive motor and passing through the arc-shaped bottom surface.

8. The waste plastic particle rinsing, separation and sedimentation device according to claim 7, characterized in that: A collecting and conveying mechanism is provided beside the cleaning pool. The collecting and conveying mechanism includes a conveying cavity communicated with the discharge outlet and a spiral conveying assembly. A discharge collecting port is provided at one end of the conveying cavity away from the discharge outlet.

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