Efficient dehydration device for wood pulp knots

By designing a high-efficiency dewatering device for wood pulp knots, automated dewatering of wood pulp raw materials and wastewater recycling have been achieved, solving the problems of water waste and manual addition, and improving dewatering efficiency and working environment safety.

CN223921869UActive Publication Date: 2026-02-17JIAXING OUBOTE PAPERMAKING EQUIP TECH CO LTD
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Patent Information

Application Number
CN202520287854.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-22
Publication Date
2026-02-17
Estimated Expiration
2035-02-22

AI Technical Summary

Technical Problem

In the current wood pulp dewatering process, the direct discharge of wastewater leads to water waste, increases the difficulty of cleaning, and requires manual addition of raw materials, causing hand pain and reducing dewatering efficiency.

Method used

Design a high-efficiency dewatering device for wood pulp knots. The wood pulp raw material is pumped into the device for dewatering, the wastewater is recycled, the raw material is squeezed out of water by a spiral plate, and the raw material is added automatically, reducing manual intervention.

Benefits of technology

It enables the recycling of wastewater, improves dewatering efficiency, reduces water waste and the need for manual operation, and enhances the safety of the working environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of dewatering devices, in particular to an efficient dewatering device for wood pulp knots, which comprises a storage barrel. The right end of the material storage barrel is fixedly connected with a material inlet, the right end of the material inlet is fixedly connected with the pump body, the right end of the pump body is fixedly connected with a material outlet I, the right end of the material outlet I is provided with a material falling pipe, one end, far away from the material outlet I, of the material falling pipe is fixedly connected with a material falling box, and the lower end of the material falling box is fixedly connected with the dewatering barrel; raw materials are controlled to enter the pump body, the discharging pipe and the discharging box from the feeding port and finally fall into the dewatering barrel, the spiral plate is controlled to rotate, extruded water can fall into the water storage pond through the water outlet hole, the dewatered raw materials can be extruded out of the second discharging port, and the bonded raw materials are blocked by the blocking disc and finally fall into the material storage box. Therefore, workers do not need to continuously add raw materials into the feeding port, and the materials are automatically fed mechanically, so that the dehydration efficiency is improved, and the waste of water resources is also reduced.
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Description

Technical Field

[0001] This utility model relates to the field of dewatering device technology, and in particular to a high-efficiency dewatering device for wood pulp knots. Background Technology

[0002] The pulp and paper industry is one of the important application areas of wood fiber. In the papermaking process, wood fiber needs to be dewatered to remove excess water in order to improve the quality and stability of the pulp. Therefore, the dewatering step is particularly important.

[0003] Nowadays, during most wood pulp dewatering processes, the wastewater is directly discharged onto the ground, resulting in a waste of water resources and increasing the difficulty of subsequent cleanup. Furthermore, during the dewatering process, workers need to continuously add wood pulp raw materials to the feed inlet, which can cause hand pain due to prolonged work, thereby reducing the efficiency of dewatering.

[0004] Therefore, in response to the current situation where wastewater from wood pulp dewatering is directly discharged onto the ground, resulting in water waste and increased cleaning difficulties, and the need for workers to continuously add wood pulp to the feed inlet during dewatering, which leads to hand pain and reduced dewatering efficiency, a high-efficiency wood pulp dewatering device can be designed. This device uses a pump to draw wood pulp from the storage tank into the device for dewatering, and the wastewater is collected in a storage tank and filtered before flowing into the outlet pipe for recycling. This reduces water waste and improves dewatering efficiency. Utility Model Content

[0005] To overcome the problem that most wood pulp dewatering processes require workers to continuously add wood pulp raw materials to the feed inlet, which can cause hand pain and reduce dewatering efficiency due to prolonged work.

[0006] The technical solution of this utility model is as follows: a high-efficiency dewatering device for wood pulp knots, including a storage tank; it also includes a pump body and a dewatering cylinder. An inlet is fixedly connected to the right end of the storage tank, and the pump body is fixedly connected to the right end of the inlet. An outlet is fixedly connected to the right end of the pump body, and a discharge pipe is provided at the right end of the outlet. A discharge box is fixedly connected to the end of the discharge pipe away from the outlet. The lower end of the discharge box is fixedly connected to the dewatering cylinder. A rotating rod is rotatably connected to the discharge box inside the dewatering cylinder. A spiral plate is fixedly connected to the surface of the rotating rod, and a second outlet is provided at the right end of the rotating rod. A blocking disc is fixedly connected to the right end of the rotating rod 1. Two support plates 2 are fixedly connected to the lower end of the storage hopper. Two support frames are fixedly connected to the left and right sides of the lower end of the discharge box. A water storage tank is fixedly connected to the end of the support frames that are close to each other. A support shell is fixedly connected to the right end of the two support frames. A storage box is set inside the support shell. A water outlet pipe is fixedly connected to the lower end of the water storage tank. A feed pipe is fixedly connected to the left end of the storage hopper. A rotating rod 2 is rotatably connected to the left end of the storage hopper. Four stirring plates are set on the surface of the rotating rod 2. Multiple water outlet holes are evenly opened on the surface of the dewatering cylinder.

[0007] Preferably, the wood pulp raw material is continuously conveyed from the feed pipe to the storage tank. The rotation of the second control rod controls the rotation of the mixing plate, preventing the wood pulp in the storage tank from settling in the water. The raw material enters the pump body from the feed port, passes through the pump body and enters the discharge box through the discharge pipe, and finally falls into the dewatering cylinder. The rotation of the first control rod controls the rotation of the spiral plate, which drives the raw material to move to the right. Due to the small gap on the right, the pressure between the raw materials increases, thereby squeezing out the water inside the raw material. The squeezed water falls into the water storage tank through the water outlet and is recycled through the water outlet pipe. The dewatered raw material is squeezed out from the second discharge port, and the bonded raw material is blocked by the blocking plate and finally falls into the storage box.

[0008] Preferably, a motor is fixedly connected to the left end of the storage hopper, and the output shaft of the motor is fixedly connected to the rotating rod.

[0009] Preferably, a second motor is fixedly connected to the right end of the inner side of the support housing, and the output shaft of the second motor is fixedly connected to the first rotating rod.

[0010] Preferably, two fixing plates are symmetrically fixedly connected to the front and rear ends of the inner side of the support housing. The two fixing plates are fixedly connected to a support plate one at their close ends. The support plate one is set on the surface of the motor shaft two.

[0011] Preferably, four bolts are provided through the surface of the fixing plate, and four spiral grooves are provided on both the front and rear sides of the interior of the support housing, with the bolts threaded into the spiral grooves.

[0012] As a preferred embodiment, both the discharge port and the end of the discharge pipe that are close to each other are fixedly connected to a fixing plate, and the two fixing plates are connected together by six bolts.

[0013] Preferably, a handle is fixedly connected to the right end surface of the storage box, a filter screen is fixedly connected to the upper end of the water outlet pipe, and a fixing block is fixedly connected to the end of the storage tank and the pump body that are close to each other.

[0014] The beneficial effects of this utility model are:

[0015] The rotation of the second control lever controls the rotation of the mixing plate, preventing the wood pulp in the storage tank from settling in the water. The raw material enters the pump body through the inlet, then flows through the pump body into the discharge box via the discharge pipe, and finally falls into the dewatering cylinder. The rotation of the first control lever controls the rotation of the spiral plate, squeezing out the water from inside the raw material. The squeezed-out water falls into the storage tank through the outlet and is recycled through the outlet pipe. The dewatered raw material is squeezed out from the second discharge outlet, and the adhered material is blocked by the blocking plate and finally falls into the storage box. This eliminates the need for workers to continuously add raw material to the inlet, as the mechanical feeding is automatic, thus improving the dewatering efficiency and reducing water waste. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of a high-efficiency dewatering device for wood pulp knots according to this utility model.

[0017] Figure 2 The diagram shown is a cross-sectional view of a high-efficiency dewatering device for wood pulp knots according to this utility model.

[0018] Figure 3 The diagram shown is a schematic diagram of the fixed plate structure of a high-efficiency dewatering device for wood pulp knots according to this utility model;

[0019] Figure 4 The diagram shown is a structural schematic of a support plate for a high-efficiency dewatering device for wood pulp knots according to this utility model.

[0020] Figure 5 The diagram shown is a schematic diagram of the motor structure of a high-efficiency dewatering device for wood pulp knots according to this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Storage tank; 2. Inlet; 3. Pump body; 4. Outlet 1; 5. Drop pipe; 6. Drop box; 7. Dewatering cylinder; 8. Rotating rod 1; 9. Spiral plate; 10. Outlet 2; 11. Baffle plate; 12. Storage box; 13. Water tank; 14. Water outlet pipe; 15. Feed pipe; 16. Rotating rod 2; 17. Stirring plate; 18. Support shell; 19. Motor 1; 20. Motor 2; 21. Support plate 1; 22. Fixing plate; 23. Bolt 1; 24. Water outlet; 25. Fixing plate; 26. Bolt 2; 27. Spiral groove; 28. Handle; 29. ​​Filter screen; 30. Support plate 2; 31. Support frame; 32. Fixing block. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5This utility model provides an embodiment of a high-efficiency dewatering device for wood pulp knots, including a storage tank 1; it also includes a pump body 3 and a dewatering cylinder 7. An inlet 2 is fixedly connected to the right end of the storage tank 1, and the pump body 3 is fixedly connected to the right end of the inlet 2. An outlet 4 is fixedly connected to the right end of the pump body 3, and a discharge pipe 5 is provided at the right end of the outlet 4. A discharge box 6 is fixedly connected to the end of the discharge pipe 5 away from the outlet 4, and the dewatering cylinder 7 is fixedly connected to the lower end of the discharge box 6. The dewatering cylinder 7 has a rotatably connected component inside the discharge box 6. The rotating rod 8 is fixedly connected to a spiral plate 9. A discharge port 10 is located at the right end of the rotating rod 8, and a blocking disc 11 is fixedly connected to the right end surface of the rotating rod 8. Two support plates 30 are fixedly connected to the lower end of the storage hopper 1. Two support frames 31 are fixedly connected to the left and right sides of the lower end of the discharge box 6. A water storage tank 13 is fixedly connected to the adjacent ends of the support frames 31. A support shell 18 is fixedly connected to the right ends of the two support frames 31. A storage box 12 is located inside the support shell 18. A water outlet pipe 14 is fixedly connected to the lower end of the water storage tank 13, and a feed pipe 15 is fixedly connected to the left end of the storage tank 1. A rotating rod 16 is rotatably connected to the left end of the inside of the storage tank 1. Four stirring plates 17 are provided on the surface of the rotating rod 16. Multiple water outlet holes 24 are evenly opened on the surface of the dewatering cylinder 7. The wood pulp raw material is continuously transported to the storage tank 1 from the feed pipe 15. The rotating rod 16 is controlled to rotate, thereby controlling the rotation of the stirring plates 17, so that the wood pulp in the storage tank 1 will not settle in the water. The raw material enters the pump body 3 from the feed inlet 2. The material enters the discharge box 6 through the discharge pipe 5 via the pump body 3 and finally falls into the dewatering cylinder 7. The rotating rod 8 is controlled to rotate, thereby controlling the spiral plate 9 to rotate, which in turn drives the material to move to the right. Due to the small gap on the right, the pressure between the materials increases, thereby squeezing out the water inside the material. The squeezed water will fall into the water storage tank 13 through the water outlet 24 and be recycled through the water outlet pipe 14. The dewatered material will be squeezed out from the discharge port 10. The adhered material is blocked by the blocking plate 11 and finally falls into the storage box 12.

[0024] Please see Figure 1 , Figure 2 and Figure 4In this embodiment, a motor 19 is fixedly connected to the left end of the storage tank 1. The output shaft of the motor 19 is fixedly connected to the rotating rod 16. Starting the motor controls the rotating rod 16 to rotate, thereby controlling the stirring plate 17 to rotate, thus preventing the raw materials from settling. A motor 20 is fixedly connected to the right end of the inside of the support housing 18. The output shaft of the motor 20 is fixedly connected to the rotating rod 8. Starting the motor 20 controls the rotating rod 8 to rotate, thereby controlling the spiral plate 9 to rotate. Two fixing plates 22 are symmetrically fixedly connected to the front and rear ends of the inside of the support housing 18. A support plate 21 is fixedly connected to the end of the two fixing plates 22 that are close to each other. The support plate 21 is set on the surface of the rotating shaft of the motor 20. The two fixing plates 22 fix the support plate 21 inside the support housing 18. The support plate 21 supports the motor 20 and the rotating rod 8 and keeps them horizontal.

[0025] Please see Figures 1-5 In this embodiment, four bolts 23 are threaded through the surface of the fixing plate 22. Four spiral grooves 27 are formed on both the front and rear sides of the interior of the support housing 18. The bolts 23 are threaded into the spiral grooves 27. The fixing plate 22 can be fixed to the support housing 18 via the spiral grooves 27 and the bolts 23, thereby fixing the support plate 21. Fixing discs 25 are fixedly connected to the ends of the discharge port 4 and the discharge pipe 5 that are close to each other. The two fixing discs 25 are threaded through and connected to six bolts 23. Two bolts 26 are used to fix the discharge port 4 and the discharge pipe 5 together with two fixing plates 25. A handle 28 is fixedly connected to the right end surface of the storage box 12. A filter screen 29 is fixedly connected to the upper end of the water outlet pipe 14. A fixing block 32 is fixedly connected to the end of the storage tank 1 and the pump body 3 that are close to each other. When the dry material fills the storage box 12, the storage box 12 can be pulled out by holding the handle 28. The wastewater falling into the water storage tank 13 is filtered by the filter screen 29 and falls into the water outlet pipe 14 for recycling.

[0026] During operation, wood pulp raw materials are continuously conveyed from the feed pipe 15 to the storage tank 1. The motor 19 is started to control the rotation rod 16 to rotate, thereby controlling the rotation of the mixing plate 17, so that the wood pulp in the storage tank 1 will not settle in the water. The raw materials enter the pump body 3 from the feed port 2, and enter the discharge box 6 from the discharge pipe 5 through the pump body 3, and finally fall into the dewatering cylinder 7. The motor 20 is started to control the rotation rod 8 to rotate, thereby controlling the rotation of the spiral plate 9, which drives the raw materials to move to the right. Due to the small gap on the right, the pressure between the raw materials increases, thereby squeezing out the water inside the raw materials. The squeezed water will fall into the water storage tank 13 through the water outlet 24, be filtered by the filter screen 29 and then be recycled through the water outlet pipe 14. The dewatered raw materials will be squeezed out from the discharge port 10. The bonded raw materials are blocked by the blocking plate 11 and finally fall into the storage box 12. When the storage box 12 is full, the storage box 12 can be pulled out by holding the handle 28.

[0027] Through the above steps, the stirring plate 17 is rotated to prevent the wood pulp in the storage tank 1 from settling in the water. The raw material enters the pump body 3, the discharge pipe 5, and the discharge box 6 from the feed port 2, and finally falls into the dewatering cylinder 7. The spiral plate 9 is rotated, and the squeezed water falls into the water storage tank 13 through the water outlet 24 and is recycled through the water outlet pipe 14. The dewatered raw material is squeezed out from the discharge port 10 and finally falls into the storage box 12. Therefore, it is not necessary for the staff to continuously add raw material to the feed port. Instead, the mechanical feeding is automatic, which improves the dewatering efficiency and reduces the waste of water resources. This solves the problem that most wood pulp dewatering processes directly discharge the wastewater to the ground, causing water waste and increasing the difficulty of subsequent cleaning. In addition, during the dewatering process, the staff need to continuously add wood pulp raw material to the feed port. Long-term work will cause the staff's hands to ache, thereby reducing the dewatering efficiency.

Claims

1. A high-efficiency dewatering device for wood pulp knots, comprising a storage tank (1); characterized in that: It also includes a pump body (3) and a dewatering cylinder (7). The right end of the storage tank (1) is fixedly connected to the inlet (2). The right end of the inlet (2) is fixedly connected to the pump body (3). The right end of the pump body (3) is fixedly connected to the outlet (4). The right end of the outlet (4) is provided with a discharge pipe (5). The end of the discharge pipe (5) away from the outlet (4) is fixedly connected to a discharge box (6). The lower end of the discharge box (6) is fixedly connected to the dewatering cylinder (7). The inside of the dewatering cylinder (7) is provided with a rotating rod (8) rotatably connected to the discharge box (6). The surface of the rotating rod (8) is fixedly connected to a spiral plate (9). The right end of the rotating rod (8) is provided with an outlet (10). The right end of the rotating rod (8) is fixedly connected to a baffle plate (11). The lower end of the storage hopper (1) is fixedly connected to two support plates (30), the lower end of the discharge box (6) is fixedly connected to two support frames (31) on the left and right sides, the support frames (31) are fixedly connected to a water storage tank (13) at the close end, the right end of the two support frames (31) is fixedly connected to a support shell (18), the inside of the support shell (18) is provided with a storage box (12), the lower end of the water storage tank (13) is fixedly connected to a water outlet pipe (14), the left end of the storage hopper (1) is fixedly connected to a feed pipe (15), the left end of the storage hopper (1) is rotatably connected to a rotating rod (16), the surface of the rotating rod (16) is provided with four stirring plates (17), and the surface of the dewatering cylinder (7) is evenly provided with multiple water outlet holes (24).

2. The efficient dewatering device for wood pulp knots according to claim 1, characterized in that: A motor (19) is fixedly connected to the left end of the storage hopper (1), and the output shaft of the motor (19) is fixedly connected to the rotating rod (16).

3. The efficient dewatering device for wood pulp knots according to claim 1, characterized in that: The right end of the support housing (18) is fixedly connected to the second motor (20), and the output shaft of the second motor (20) is fixedly connected to the first rotating rod (8).

4. The efficient dewatering device for wood pulp knots according to claim 1, characterized in that: The front and rear ends of the support housing (18) are symmetrically fixedly connected to two fixing plates (22). The two fixing plates (22) are fixedly connected to a support plate (21) at the end that is close to each other. The support plate (21) is set on the surface of the rotating shaft of the motor (20).

5. The efficient dewatering device for wood pulp knots according to claim 4, characterized in that: Four bolts (23) are provided through the surface of the fixing plate (22). Four spiral grooves (27) are provided on both the front and rear sides of the interior of the supporting shell (18). The bolts (23) are threaded into the spiral grooves (27).

6. The efficient dewatering device for wood pulp knots according to claim 1, characterized in that: The discharge port (4) and the drop pipe (5) are both fixedly connected to a fixed plate (25) at their respective ends, and the two fixed plates (25) are connected together by six bolts (26) through a threaded connection.

7. The efficient dewatering device for wood pulp knots according to claim 1, characterized in that: A handle (28) is fixedly connected to the right end surface of the storage box (12), a filter screen (29) is fixedly connected to the upper end of the water outlet pipe (14), and a fixing block (32) is fixedly connected to the end of the storage tank (1) and the pump body (3) that are close to each other.