A polyvinyl chloride pellet cleaning apparatus

Abstract

The utility model relates to cleaning equipment technical field, especially a kind of polyvinyl chloride granule cleaning equipment, including base, the top of the base is fixedly connected with two symmetrical supports frame, the inner wall of the support frame is fixedly connected with top cover and filter frame corresponding to up and down.The utility model has the advantages that two arc-shaped pipes can be quickly disassembled, the conveying knife roll is completely exposed, and the operator can directly overhaul or replace it;After overhaul is completed, the hydraulic cylinder is started in reverse to reset the lifting frame, the arc-shaped pipe is reattached to the top cover, and the locking bolt is tightened and fixed. The lifting frame drives the arc-shaped pipe to lift by the hydraulic cylinder, replacing the fixed connection mode of the traditional sleeve, without disassembling a large number of bolts to expose the conveying knife roll, greatly simplifying the overhaul process;The guide rod ensures that the lifting frame moves smoothly, avoids the arc-shaped pipe from shifting, reduces the labor intensity of multiple cooperation and the safety risk caused by transporting heavy sleeve, and improves the efficiency and safety of equipment maintenance.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a cleaning equipment for polyvinyl chloride granules. Background Technology

[0002] Polyvinyl chloride (PVC) granule cleaning equipment is an industrial device specifically designed for cleaning polyvinyl chloride (PVC) granules. Its core function is to remove impurities, dust, oil, and residual processing aids adhering to the surface of PVC granules through physical flushing, friction, or chemical assistance, thereby improving the purity of the granules and their subsequent processing performance.

[0003] Existing vertical pellet washing machines, a common type of PVC pellet washing equipment, suffer from significant maintenance inconvenience due to their structural design. The core components of a vertical pellet washing machine include a vertically mounted conveyor roller and a sleeve surrounding it. The conveyor roller rotates, lifting the PVC pellets upwards, while the washing water flows downwards along the inner wall of the sleeve under gravity, creating a counter-current contact between the pellets and water flow to achieve the cleaning effect. However, currently, the sleeve is often fixed to the main body of the equipment using a fixed connection or multiple bolts, making sleeve disassembly cumbersome. When the conveyor roller experiences jamming, wear, or bearing failure requiring maintenance, operators must first disassemble the connection between the sleeve and the equipment. This process often requires multiple people working together, and the weight of the sleeve poses a safety hazard during disassembly. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to provide a polyvinyl chloride granule cleaning device to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, one embodiment of this utility model provides a polyvinyl chloride granule cleaning device, including a base. Two symmetrically arranged support frames are fixedly connected to the top of the base. A top cover and a filter frame are fixedly connected to the inner wall of each support frame. A conveying roller is rotatably connected between the top cover and the filter frame via a bearing. A motor is fixedly connected to the top of each support frame, and the output end of the motor passes through the top cover and is fixedly connected to the conveying roller. A plurality of symmetrically arranged hydraulic cylinders are embedded in the top of each filter frame. A lifting frame is fixedly connected to the top of each hydraulic cylinder. A plurality of symmetrically arranged positioning pins are fixedly connected to the top surface of the lifting frame. An arc-shaped tube is slidably connected between every two left and right corresponding positioning pins. The two ends of the two arc-shaped tubes are in contact with each other, and the top surfaces of both arc-shaped tubes are in contact with the bottom surface of the top cover.

[0007] Preferably, of any of the above embodiments, a screw conveyor is fixedly connected to one side of the base, a feed hopper is fixedly connected to the top of the screw conveyor, and the conveying end of the screw conveyor passes through the support frame and is fixedly connected to the filter frame.

[0008] Preferably, one side of the top cover is fixedly connected to an L-shaped discharge pipe, the horizontal part of the L-shaped discharge pipe is fixedly connected to the support frame, and the vertical part of the L-shaped discharge pipe is located outside the support frame.

[0009] Preferably, in any of the above embodiments, a corrugated telescopic sleeve is fixedly connected to the bottom surface of the lifting frame, and the bottom end of the corrugated telescopic sleeve is fixedly connected to the filter frame.

[0010] Preferably, in any of the above solutions, the bottom surface of the lifting frame is fixedly connected with a plurality of symmetrically arranged guide rods, and the plurality of guide rods are slidably connected to the filter frame.

[0011] Preferably, in any of the above embodiments, a connecting pipe is fixedly connected to the inner wall of the lifting frame, the bottom end of the connecting pipe is slidably connected to the filter frame, and the conveying blade roller is located inside the connecting pipe.

[0012] Preferably, in any of the above embodiments, the bottom surface of the top cover is fixedly connected to two symmetrically arranged arc-shaped baffles, and the tops of the two arc-shaped tubes are slidably connected to the two arc-shaped baffles respectively.

[0013] Preferably, from any of the above solutions, locking bolts are rotatably connected to both the left and right sides of the lifting frame, and the threaded portions of several locking bolts are threadedly connected to the support frame.

[0014] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows: 1. When the conveyor roller needs maintenance, first loosen the locking bolts to release the fixing between the lifting frame and the support frame; start the hydraulic cylinder to move the lifting frame downwards, and the arc-shaped tube descends with the lifting frame and separates from the bottom surface of the top cover, releasing the locking of the top of the arc-shaped tube. At the same time, the guide rod guides the lifting frame to move smoothly; at this time, the two arc-shaped tubes can be quickly disassembled, and the conveyor roller is fully exposed, allowing operators to directly inspect or replace it; after maintenance, reverse the hydraulic cylinder to reset the lifting frame, and the arc-shaped tube re-fits the top cover, then tighten the locking bolts to fix it. Driving the lifting frame with a hydraulic cylinder to lift the arc-shaped tube replaces the traditional fixed connection method of the sleeve, exposing the conveyor roller without disassembling a large number of bolts, greatly simplifying the maintenance process; the guide rod ensures smooth movement of the lifting frame, preventing the arc-shaped tube from shifting, reducing the labor intensity of multiple people working together and the safety risks caused by handling heavy sleeves, improving the efficiency and safety of equipment maintenance.

[0015] 2. During cleaning, PVC granules enter the screw conveyor through the feed hopper and are then fed into the filter frame. A motor drives the conveyor rollers to rotate, lifting the granules upwards. Cleaning water flows downwards along the inner wall of the arc-shaped pipe, forming a counter-current contact with the granules. The cleaned granules are discharged through the L-shaped discharge pipe, while wastewater is collected after being filtered through the filter frame. Arc-shaped baffles restrict the lateral displacement of the arc-shaped pipe, connecting pipes prevent water and granules from overflowing, and corrugated expansion sleeves ensure a seal between the lifting frame and the filter frame. The combination of the arc-shaped pipe and arc-shaped baffles ensures the stability of the counter-current contact between the water flow and the granules, improving the cleaning effect. The sealing design of the connecting pipe and corrugated expansion sleeve prevents material and wastewater leakage, reducing resource waste. The screw conveyor and L-shaped discharge pipe form a continuous material conveying path, ensuring uninterrupted cleaning operations and improving production efficiency. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the assembly of this utility model; Figure 2 This is a cross-sectional structural diagram of the assembly of this utility model; Figure 3 This is an exploded structural diagram of the assembly of this utility model; Figure 4 This is a schematic diagram of the support frame of this utility model; Figure 5 This is a schematic diagram of the structure of the base of this utility model; Figure 6 This is a schematic diagram of the lifting frame of this utility model.

[0017] In the diagram: 1-base, 2-support frame, 3-top cover, 4-filter frame, 5-conveying cutter roller, 6-motor, 7-hydraulic cylinder, 8-lifting frame, 9-positioning pin, 10-arc tube, 11-screw conveyor, 12-feed hopper, 13-L-shaped discharge pipe, 14-corrugated telescopic sleeve, 15-guide rod, 16-connecting pipe, 17-arc baffle, 18-locking bolt. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto.

[0019] like Figures 1 to 6As shown, a polyvinyl chloride (PVC) granule cleaning device includes a base 1. Two symmetrically arranged support frames 2 are fixedly connected to the top of the base 1. The inner walls of the support frames 2 are fixedly connected to corresponding top covers 3 and filter frames 4. A conveying cutter roller 5 is rotatably connected between the top cover 3 and the filter frames 4 via bearings. A motor 6 is fixedly connected to the top of the support frames 2. The output end of the motor 6 passes through the top cover 3 and is fixedly connected to the conveying cutter roller 5. Several symmetrically arranged hydraulic cylinders 7 are embedded in the top of the filter frames 4. A lifting frame 8 is fixedly connected to the top of the hydraulic cylinders 7. Several symmetrically arranged positioning pins 9 are fixedly connected to the top surface of the lifting frame 8. An arc-shaped tube 10 is slidably connected between every two left and right corresponding positioning pins 9. The two ends of the two arc-shaped tubes 10 are in contact with each other, and the top surfaces of the two arc-shaped tubes 10 are in contact with the bottom surface of the top cover 3.

[0020] As an optional technical solution of this utility model, a screw conveyor 11 is fixedly connected to one side of the base 1, and a feed hopper 12 is fixedly connected to the top of the screw conveyor 11. The conveying end of the screw conveyor 11 passes through the support frame 2 and is fixedly connected to the filter frame 4. The screw conveyor 11 on one side of the base 1 is connected to the feed hopper 12 and the filter frame 4. The polyvinyl chloride granules can be fed smoothly and continuously into the filter frame 4 by screw conveying, avoiding blockage or accumulation of granules during the feeding process. At the same time, the feed hopper 12 can temporarily store the granules to be cleaned, ensuring the stability of the feed amount and providing a guarantee for the continuity of subsequent cleaning operations.

[0021] As an optional technical solution of this utility model, an L-shaped discharge pipe 13 is fixedly connected to one side of the top cover 3. The horizontal part of the L-shaped discharge pipe 13 is fixedly connected to the support frame 2, and the vertical part of the L-shaped discharge pipe 13 is located outside the support frame 2. The horizontal part of the L-shaped discharge pipe 13 on one side of the top cover 3 is fixed to the support frame 2, and the vertical part is located outside the support frame 2. This can accurately receive the cleaned granules lifted by the conveying cutter roller 5, and guide the granules to be discharged to the outside of the equipment through the vertical structure, so as to avoid the granules falling back into the equipment during the discharge process. At the same time, the fixed connection method ensures the stability of the discharge pipe during the operation of the equipment and does not affect the normal operation of the overall structure.

[0022] As an optional technical solution of this utility model, a corrugated telescopic sleeve 14 is fixedly connected to the bottom surface of the lifting frame 8. The bottom end of the corrugated telescopic sleeve 14 is fixedly connected to the filter frame 4. The corrugated telescopic sleeve 14 on the bottom surface of the lifting frame 8 is fixedly connected to the filter frame 4. When the lifting frame 8 moves up and down, it can expand and deform with it, always maintaining the sealing state between the lifting frame 8 and the filter frame 4, preventing sewage or granules from leaking out from the gaps during the cleaning process, reducing material waste and pollution to the surrounding environment of the equipment. At the same time, the corrugated structure does not affect the normal lifting and lowering action of the lifting frame 8.

[0023] As an optional technical solution of this utility model, the bottom surface of the lifting frame 8 is fixedly connected with several symmetrically arranged guide rods 15, and the guide rods 15 are slidably connected to the filter frame 4. The guide rods 15 on the bottom surface of the lifting frame 8 are slidably connected to the filter frame 4, which provides stable guidance for the lifting movement of the lifting frame 8, prevents the lifting frame 8 from tilting, shaking or deviating under the drive of the hydraulic cylinder 7, ensures that the arc tube 10 can accurately fit or separate from the top cover 3, and enhances the structural stability of the lifting frame 8 during equipment operation.

[0024] As an optional technical solution of this utility model, a connecting pipe 16 is fixedly connected to the inner wall of the lifting frame 8. The bottom end of the connecting pipe 16 is slidably connected to the filter frame 4. The conveying cutter roller 5 is located inside the connecting pipe 16. The bottom end of the connecting pipe 16 on the inner wall of the lifting frame 8 is slidably connected to the filter frame 4, and the conveying cutter roller 5 is located inside it. This can block the gap between the conveying cutter roller 5 and the lifting frame 8, preventing the polyvinyl chloride granules from falling from the gap during the lifting process. At the same time, the connecting pipe 16 moves synchronously with the lifting frame 8, without affecting the normal rotation of the conveying cutter roller 5 and the lifting action of the lifting frame 8.

[0025] As an optional technical solution of this utility model, the bottom surface of the top cover 3 is fixedly connected with two symmetrically arranged arc-shaped baffles 17, and the tops of the two arc-shaped tubes 10 are respectively slidably connected to the two arc-shaped baffles 17. The arc-shaped baffles 17 on the bottom surface of the top cover 3 are slidably connected to the tops of the arc-shaped tubes 10, which can restrict the lateral position of the arc-shaped tubes 10, prevent the arc-shaped tubes 10 from shifting left or right when lifting or when the equipment is running, ensure that the arc-shaped tubes 10 and the top cover 3 always maintain a good fit, ensure that the cleaning water flows smoothly down the inner wall of the arc-shaped tubes 10, and improve the stability of the cleaning effect.

[0026] As an optional technical solution of this utility model, locking bolts 18 are rotatably connected to both the left and right sides of the lifting frame 8. The screw parts of several locking bolts 18 are threadedly connected to the support frame 2. After the lifting frame 8 rises to the working position, the lifting frame 8 can be firmly fixed to the support frame 2 by tightening the locking bolts 18, so as to prevent the lifting frame 8 from shifting due to vibration or external force during equipment operation, ensuring the tight fit between the arc tube 10 and the top cover 3, and ensuring the stable progress of the cleaning operation.

[0027] A polyvinyl chloride (PVC) granule cleaning device, the working principle of which is as follows: 1): When it is necessary to inspect the conveyor roller 5, first loosen the locking bolt 18 to release the fixing between the lifting frame 8 and the support frame 2.

[0028] 2): Start the hydraulic cylinder 7, which drives the lifting frame 8 to move downward. The arc-shaped tube 10 descends with the lifting frame 8 and separates from the bottom surface of the top cover 3, thus releasing the lock on the top of the arc-shaped tube 10.

[0029] 3): Guide rod 15 guides the lifting frame 8 to move smoothly; at this time, the two arc tubes 10 can be quickly disassembled, the conveying cutter roller 5 is fully exposed, and the operator can directly inspect or replace it.

[0030] In summary, when the conveyor roller 5 needs to be repaired in this PVC granule cleaning equipment, first loosen the locking bolt 18 to release the fixing between the lifting frame 8 and the support frame 2; start the hydraulic cylinder 7 to move the lifting frame 8 downward, and the arc tube 10 descends with the lifting frame 8 and separates from the bottom surface of the top cover 3, releasing the locking of the top of the arc tube 10. At the same time, the guide rod 15 guides the lifting frame 8 to move smoothly; at this time, the two arc tubes 10 can be quickly disassembled, and the conveyor roller 5 is fully exposed, allowing the operator to directly repair or replace it; after the repair is completed, start the hydraulic cylinder 7 in reverse to reset the lifting frame 8, and the arc tube 10 re-fits the top cover 3, then tighten the locking bolt 18 to fix it. The lifting frame 8 is driven by hydraulic cylinder 7 to lift the arc tube 10, replacing the traditional fixed connection method of the sleeve. The conveying cutter roller 5 can be exposed without disassembling a large number of bolts, which greatly simplifies the maintenance process. The guide rod 15 ensures that the lifting frame 8 moves smoothly and avoids the arc tube 10 from deviating. This reduces the labor intensity of multiple people working together and the safety risks caused by handling heavy sleeves, and improves the efficiency and safety of equipment maintenance. During cleaning, PVC granules enter the screw conveyor 11 through the feed hopper 12 and are sent into the filter frame 4 by the screw conveyor 11. The motor 6 drives the conveying cutter roller 5 to rotate, which lifts the granules upward. The cleaning water flows downward along the inner wall of the arc tube 10 and forms a reverse contact with the granules. The cleaned granules are discharged through the L-shaped discharge pipe 13, and the sewage is collected after being filtered by the filter frame 4. The arc baffle 17 restricts the lateral displacement of the arc tube 10, the connecting pipe 16 prevents water and granules from overflowing, and the corrugated expansion sleeve 14 ensures the seal between the lifting frame 8 and the filter frame 4. The combination of the arc-shaped pipe 10 and the arc-shaped baffle 17 ensures the stability of the water flow and the particle contact in reverse, and improves the cleaning effect; the sealing design of the connecting pipe 16 and the corrugated expansion sleeve 14 prevents material and sewage leakage and reduces resource waste; the screw conveyor 11 and the L-shaped discharge pipe 13 form a continuous material conveying path to ensure that the cleaning operation is uninterrupted and improves production efficiency.

Claims

1. A polyvinyl chloride granule cleaning device, characterized in that: The system includes a base (1), with two symmetrically arranged support frames (2) fixedly connected to the top of the base (1). The inner wall of the support frame (2) is fixedly connected to a top cover (3) and a filter frame (4) corresponding to the top and bottom. A conveying blade roller (5) is rotatably connected between the top cover (3) and the filter frame (4) through a bearing. A motor (6) is fixedly connected to the top of the support frame (2). The output end of the motor (6) passes through the top cover (3) and is fixedly connected to the conveying blade roller (5). Several symmetrically arranged hydraulic cylinders (7) are embedded in the top of the filter frame (4). A lifting frame (8) is fixedly connected to the top of the several hydraulic cylinders (7). Several symmetrically arranged positioning pins (9) are fixedly connected to the top surface of the lifting frame (8). An arc-shaped tube (10) is slidably connected between each pair of left and right corresponding positioning pins (9). The two ends of the two arc-shaped tubes (10) are in contact with each other, and the top surfaces of the two arc-shaped tubes (10) are in contact with the bottom surface of the top cover (3).

2. The polyvinyl chloride granule cleaning equipment according to claim 1, characterized in that: A screw conveyor (11) is fixedly connected to one side of the base (1), and a feed hopper (12) is fixedly connected to the top of the screw conveyor (11). The conveying end of the screw conveyor (11) passes through the support frame (2) and is fixedly connected to the filter frame (4).

3. The polyvinyl chloride granule cleaning equipment according to claim 2, characterized in that: An L-shaped discharge pipe (13) is fixedly connected to one side of the top cover (3). The horizontal part of the L-shaped discharge pipe (13) is fixedly connected to the support frame (2), and the vertical part of the L-shaped discharge pipe (13) is located outside the support frame (2).

4. The polyvinyl chloride granule cleaning equipment according to claim 3, characterized in that: The bottom surface of the lifting frame (8) is fixedly connected to a corrugated telescopic sleeve (14), and the bottom end of the corrugated telescopic sleeve (14) is fixedly connected to the filter frame (4).

5. The polyvinyl chloride granule cleaning equipment according to claim 4, characterized in that: The bottom surface of the lifting frame (8) is fixedly connected with several symmetrically arranged guide rods (15), and the guide rods (15) are slidably connected to the filter frame (4).

6. The polyvinyl chloride granule cleaning equipment according to claim 5, characterized in that: The inner wall of the lifting frame (8) is fixedly connected to a connecting pipe (16), the bottom end of the connecting pipe (16) is slidably connected to the filter frame (4), and the conveying knife roller (5) is located inside the connecting pipe (16).

7. The polyvinyl chloride granule cleaning equipment according to claim 6, characterized in that: The bottom surface of the top cover (3) is fixedly connected to two symmetrically arranged arc-shaped baffles (17), and the tops of the two arc-shaped tubes (10) are slidably connected to the two arc-shaped baffles (17) respectively.

8. The polyvinyl chloride granule cleaning equipment according to claim 7, characterized in that: The lifting frame (8) is rotatably connected to locking bolts (18) on both the left and right sides, and the screws of several locking bolts (18) are threadedly connected to the support frame (2).

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