Feeding device of dewatering screw conveyor
By using a spiral conveyor roller, a rubber scraper driven by a synchronous belt, and an L-shaped hammer structure, the problem of screen blockage in the feeding device of the dewatering spiral conveyor is solved, achieving efficient and continuous dewatering.
Patent Information
- Application Number
- CN202520336977.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-28
AI Technical Summary
The screen openings of the existing dewatering screw conveyor are prone to clogging during operation, which affects the dewatering effect and efficiency, requiring the machine to be stopped for cleaning.
It adopts a structure with spiral conveyor rollers, synchronous belts, rubber scrapers and L-shaped hammers. The spiral conveyor rollers squeeze and dewater, and the synchronous belt and motor-driven synchronous wheel system, together with the rubber scrapers and L-shaped hammers, prevent the screen opening from clogging.
It achieves anti-clogging of the screen opening during the dewatering process, improving dewatering efficiency and the continuous operation capability of the equipment.
Smart Images

Figure CN223920308U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dehydration device technology, and in particular to a dehydration screw conveyor feeding device. Background Technology
[0002] The dewatering screw conveyor is mainly used in food processing, papermaking, sewage treatment and kitchen waste treatment. Compared with other conveying devices, the dewatering screw conveyor has the advantages of higher dewatering efficiency, lower energy consumption and stronger adaptability.
[0003] In existing dewatering screw conveyor feeding devices, the screw conveyor rollers convey materials while simultaneously squeezing and dewatering them by reducing the gap between the materials and the inner wall of the rollers. The dewatered water flows into a water storage device from the screen opening. However, the screen opening may become clogged during the dewatering process, requiring the machine to be stopped for cleaning, which affects the dewatering effect and efficiency. Therefore, a new dewatering screw conveyor feeding device was designed. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a feeding device for a dewatering screw conveyor.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A dewatering screw conveyor feeding device includes a frame. A rotary screen is fixedly connected to the top of the frame, and screen holes are evenly distributed on the lower half of the rotary screen near the top. A dewatering conveying structure is provided inside the rotary screen. A water storage box is fixedly connected to the inner wall of the frame. First rollers are rotatably connected to the top and bottom of the inner wall of the water storage box. A second synchronous belt is wound between two first rollers. Rubber scrapers are evenly fixedly connected to the surface of the second synchronous belt. A first synchronous pulley is fixedly connected to one end of the first roller near the top. A first fixed plate is fixedly connected to the side of the frame near the first synchronous pulley. A second synchronous pulley is rotatably connected to the side of the first fixed plate near the first synchronous pulley. The first fixed plate is rotatably equipped with a second roller, which is coaxially fixed with a second synchronous pulley. A first synchronous belt is wound between the first and second synchronous pulleys. A disc is fixedly connected to the end of the second roller away from the second synchronous pulley. A connecting rod is rotatably connected to the side of the disc away from the first fixed plate. A T-shaped plate is rotatably connected to the end of the connecting rod away from the disc. A limiting plate is fixedly connected to the side of the first fixed plate away from the second synchronous pulley. The limiting plate has a hole that matches the T-shaped plate. A third fixed plate is fixedly connected to the bottom of the first fixed plate. Two second fixed plates are fixedly connected to the top of the third fixed plate. An L-shaped hammer is rotatably connected between the two second fixed plates.
[0007] As a further embodiment of this utility model, the dewatering conveying structure includes a spiral conveying roller coaxial with the drum screen, and the main shaft of the spiral conveying roller has a structure that is wider at the top and narrower at the bottom.
[0008] As a further embodiment of this utility model, the end surface of the drum screen away from the first fixed plate is provided with a feed inlet, and a feed hopper is fixedly connected to the top of the feed inlet.
[0009] As a further embodiment of this utility model, the end of the drum screen away from the feed inlet is provided with a discharge outlet, and the discharge outlet is fixedly connected to a discharge outlet plate.
[0010] As a further embodiment of this utility model, a second motor is fixedly connected to the side of the frame near the first synchronous pulley, and the output end of the second motor is coaxially fixed to the first synchronous pulley.
[0011] As a further embodiment of this utility model, a first motor is fixedly connected to the top of the frame, and a spiral conveying roller is coaxially fixed to the output end of the first motor.
[0012] The beneficial effects of this utility model are as follows:
[0013] This utility model employs a first motor, a second motor, a first synchronous pulley, a second synchronous pulley, a first synchronous belt, a second synchronous belt, a rubber scraper, a spiral conveyor roller, a drum screen, a T-shaped plate, and an L-shaped hammer. The spiral conveyor roller moves on the drum screen, simultaneously conveying and dewatering the material towards the outlet. The second motor drives the first and second synchronous belts, causing the L-shaped hammer to strike the drum screen while the rubber scraper scrapes material off the screen opening. Therefore, this effectively solves the problems mentioned in the background technology and achieves the technical effect of preventing screen clogging during the dewatering and feeding process. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of the feeding device for a dewatering screw conveyor proposed in this utility model;
[0015] Figure 2 This is a schematic diagram of the internal structure of a dewatering screw conveyor feeding device proposed in this utility model;
[0016] Figure 3 This is a schematic diagram of the conveying mechanism of the feeding device for a dewatering screw conveyor proposed in this utility model;
[0017] Figure 4 This is a schematic diagram of the structure of the feeding device of the dewatering screw conveyor proposed in this utility model.
[0018] Figure 5 This utility model proposes a feeding device for a dewatering screw conveyor. Figure 3 An enlarged structural diagram of point A.
[0019] In the diagram: 1. Frame; 2. Feed hopper; 3. Water storage box; 4. Rotary drum screen; 5. Feed inlet; 6. First synchronous pulley; 7. Second synchronous pulley; 8. First circular roller; 9. Second circular roller; 10. Disc; 11. First synchronous belt; 12. Second synchronous belt; 13. Rubber scraper; 14. Spiral conveyor roller; 15. First fixed plate; 16. Connecting rod; 17. T-shaped plate; 18. L-shaped hammer; 19. Limiting plate; 20. Second fixed plate; 21. First motor; 22. Second motor; 23. Discharge port plate; 24. Third fixed plate. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0022] Reference Figures 1-5A dewatering screw conveyor feeding device includes a frame 1. A rotary screen 4 is fixedly connected to the top of the frame 1, and screen holes are evenly distributed on the lower half surface of the rotary screen 4 near the top. A dewatering conveying structure is provided inside the rotary screen 4. A water storage box 3 is fixedly connected to the inner wall of the frame 1. First rollers 8 are rotatably connected to the top and bottom of the inner wall of the water storage box 3. A second synchronous belt 12 is wound between the two first rollers 8. Rubber scrapers 13 are evenly fixedly connected to the surface of the second synchronous belt 12. A first synchronous wheel 6 is fixedly connected to one end of the first roller 8 near the top. A first fixed plate 15 is fixedly connected to the side of the frame 1 near the first synchronous wheel 6. A second synchronous wheel 7 is rotatably connected to the side of the first fixed plate 15 near the first synchronous wheel 6. A second circular roller 9 is movably mounted, coaxially fixed with a second synchronous pulley 7. A first synchronous belt 11 is wound between the first synchronous pulley 6 and the second synchronous pulley 7. A disc 10 is fixedly connected to the end of the second circular roller 9 away from the second synchronous pulley 7. A connecting rod 16 is rotatably connected to the side of the disc 10 away from the first fixed plate 15. A T-shaped plate 17 is rotatably connected to the end of the connecting rod 16 away from the disc 10. A limiting plate 19 is fixedly connected to the side of the first fixed plate 15 away from the second synchronous pulley 7. The limiting plate 19 has a hole that matches the T-shaped plate 17. A third fixed plate 24 is fixedly connected to the bottom of the first fixed plate 15. Two second fixed plates 20 are fixedly connected to the top of the third fixed plate 24. An L-shaped hammer 18 is rotatably connected between the two second fixed plates 20. The L-shaped hammer 18 strikes the drum screen 4 to shake out the material blocking the screen opening, and then a rubber scraper 13 scrapes off the shaken material.
[0023] In this embodiment, the dewatering conveying structure includes a spiral conveying roller 14 coaxial with the drum screen 4, and the main shaft of the spiral conveying roller 14 has a structure that is wider at the top and narrower at the bottom. The structure of being wider at the top and narrower at the bottom makes the gap between the material and the drum screen 4 smaller and smaller as the material is transported toward the discharge port, thereby achieving the purpose of squeezing and dewatering.
[0024] In this embodiment, a feed inlet 5 is provided on the surface of the drum screen 4 away from the first fixed plate 15. A feed hopper 2 is fixedly connected to the top of the feed inlet 5, and the material is poured in from the feed hopper 2.
[0025] In this embodiment, the end of the drum screen 4 away from the feed inlet 5 is provided with a discharge port, and the discharge port is fixedly connected with a discharge port plate 23 to prevent the dehydrated material from falling to other places.
[0026] In this embodiment, a second motor 22 is fixedly connected to the side of the frame 1 near the first synchronous wheel 6. The output end of the second motor 22 is coaxially fixed to the first synchronous wheel 6, driving the L-shaped hammer 18 to strike the drum screen 4.
[0027] In this embodiment, a first motor 21 is fixedly connected to the top of the frame 1, and a spiral conveying roller 14 is coaxially fixed to the output end of the first motor 21 to drive the spiral conveying roller 14 to rotate.
[0028] Working principle: Material is poured into the feed hopper 2 and enters the drum screen 4 through the feed inlet 5. The first motor 21 and the second motor 22 are started, and the screw conveyor roller 14 rotates. Due to the structure of the screw conveyor roller 14, which is wider at the top and narrower at the bottom, the gap between the material and the inner wall of the drum screen 4 gradually decreases as the material is transported towards the discharge port, achieving dewatering. Simultaneously, the squeezed water flows through the screen opening of the drum screen 4 to the water storage box 3. When the second motor 22 starts, it drives the first synchronous pulley 6 to rotate, causing the first drum 8 to move, which in turn drives the second synchronous belt 12. The rotation of the first synchronous pulley 6 drives the second drum 8, which is wrapped with the same first synchronous belt 11. The synchronous wheel 7 rotates, the second roller 9 rotates, driving the disc 10 to rotate, which causes the connecting rod 16 to drive the T-shaped plate 17. The limiting hole on the limiting plate 19 allows the T-shaped plate 17 to move only up and down. When the T-shaped plate 17 rises, the L-shaped hammer 18 falls, striking the drum screen 4. When the T-shaped plate 17 falls, the hammer head of the L-shaped hammer 18 leaves the surface of the drum screen 4. The L-shaped hammer 18 reciprocates, causing the material blocking the screen opening to be shaken out. The material is then scraped off by the rubber scraper 13 fixed on the second synchronous belt 12. This achieves the technical effect of preventing screen opening blockage during the dewatering and feeding process.
[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A dewatering screw feeder device, comprising a frame (1), characterized in that, The top of the rack (1) is fixedly connected with a drum round sieve (4), and the drum round sieve (4) is uniformly distributed with sieve holes near the lower half surface of the top, the inside of the drum round sieve (4) is provided with a dehydration conveying structure, the inner wall of the rack (1) is fixedly connected with a water storage box (3), the top and bottom of the inner wall of the water storage box (3) are rotatably connected with first circular rollers (8), a second synchronous belt (12) is wound between the two first circular rollers (8), the surface of the second synchronous belt (12) is fixedly connected with rubber scrapers (13), one end of the first circular roller (8) near the top is fixedly connected with a first synchronous wheel (6), one side of the rack (1) near the first synchronous wheel (6) is fixedly connected with a first fixed plate (15), one side of the first fixed plate (15) near the first synchronous wheel (6) is rotatably connected with a second synchronous wheel (7), the first fixed plate (15) is rotatably provided with a second circular roller (9), the second circular roller (9) is coaxially fixed with the second synchronous wheel (7), a first synchronous belt (11) is wound between the first synchronous wheel (6) and the second synchronous wheel (7), one end of the second circular roller (9) away from the second synchronous wheel (7) is fixedly connected with a disc (10), one side of the disc (10) away from the first fixed plate (15) is rotatably connected with a connecting rod (16), one end of the connecting rod (16) away from the disc (10) is rotatably connected with a T-shaped plate (17), one side of the first fixed plate (15) away from the second synchronous wheel (7) is fixedly connected with a limiting plate (19), the limiting plate (19) is provided with a hole matched with the T-shaped plate (17), the bottom of the first fixed plate (15) is fixedly connected with a third fixed plate (24), the top of the third fixed plate (24) is fixedly connected with two second fixed plates (20), and an L-shaped hammer (18) is rotatably connected between the two second fixed plates (20).
2. A dewatering screw feeder according to claim 1, wherein, The dehydration conveying structure comprises a spiral conveying roller (14) coaxial with the drum round sieve (4), and the main shaft of the spiral conveying roller (14) is in a structure of wide at the top and narrow at the bottom.
3. A dewatering screw feeder according to claim 2, wherein, The surface of one end of the drum round sieve (4) away from the first fixed plate (15) is provided with a feeding port (5), and the top of the feeding port (5) is fixedly connected with a feeding hopper (2).
4. A dewatering screw feeder according to claim 3, wherein, One end of the drum round sieve (4) away from the feeding port (5) is provided with a discharging port, and the discharging port is fixedly connected with a discharging port plate (23).
5. A dewatering screw feeder according to claim 4, wherein, One side of the rack (1) near the first synchronous wheel (6) is fixedly connected with a second motor (22), and the output end of the second motor (22) is coaxially fixed with the first synchronous wheel (6).
6. A dewatering screw feeder according to claim 5, wherein, The top of the rack (1) is fixedly connected with a first motor (21), and the output end of the first motor (21) is coaxially fixed with the spiral conveying roller (14).