A device for increasing the efficiency of a pulper discharge system

Abstract

The utility model discloses a turbolence synergism device for pulper discharge system belongs to pulper technical field, including pulper, the pulper right side lower extreme fixedly connected with the slide groove, and the pulper inner wall fixedly connected with the fairlead, and the fairlead is in the pulper inner wall equidistance distribution, and the pulper inner wall is close to the slide groove one end fixedly connected with turbolence plate, the turbolence plate is in the pulper inner wall equal angle distribution. The turbolence synergism device for pulper discharge system, through setting turbolence plate and auxiliary turbolence board, can change the slurry flow, and turbolence plate can be as a buffer, reduce the cutting surface that produces because slurry rotates in the slide groove import, improve the processing efficiency of sand well, make the slurry produce a negative pressure area on the slide groove import, make the slurry steady flow into sand well, reduce the slide groove import jam risk, guarantee the smooth operation of discharge system, reduce the equipment failure and maintenance cost caused by jam.

Description

Technical Field

[0001] This utility model relates to the field of pulping technology, specifically to a turbulence enhancement device for a pulping slag discharge system. Background Technology

[0002] Pulper is a key piece of equipment in the papermaking, waste paper recycling, and pulping industries used to disperse fibrous raw materials (such as waste paper, wood pulp board, and non-wood fibers) into pulp. Its core function is to mechanically crush and disperse solid raw materials into a uniform fiber suspension. The pulper's slag discharge system is a crucial component in ensuring efficient equipment operation and pulp quality. It mainly separates and discharges impurities generated during the pulping process and recovers pulp mixed in with the slag. When discharging pulp, it is easy for the pipes to become clogged, requiring a significant investment of manpower and time to clean the blocked pipes. The cleaning work may involve disassembling the pipes and using specialized tools to remove the blockages, which is a tedious and labor-intensive process. At the same time, the cleaning process may cause some damage to the pipes and equipment, further increasing maintenance costs.

[0003] To overcome the above-mentioned defects, the prior art (Chinese patent application number 202120567719.9, application date 2021-03-19) provides a device for preventing blockage in a high-alkalinity thickener underflow slurry conveying pipeline, including a cylinder, a slurry inlet, a slurry outlet, and a descaling hole. During operation, this device utilizes the elevation difference to cause the slurry to undergo parabolic motion. By leveraging the different inertia and gravity of materials with varying specific gravities and shapes, it effectively deposits scale and accelerates the flow of useful minerals in the slurry, thereby separating the scale from the slurry. This ensures smooth conveying of the thickener underflow slurry, prevents blockage in the thickener underflow slurry conveying pipeline, reduces worker labor intensity, avoids personnel and environmental risks associated with untimely cleaning, and ensures stable operation of the production process.

[0004] In the pulping process, the settling well is a crucial piece of equipment connecting the pulper and the hydraulic sludge remover via a chute. Because the chute is horizontally positioned at a 90-degree angle to the bottom of the pulper's inclined trough, heavy and light sludge are separated along with the pulp during operation, flowing from the chute into the settling well for further processing. However, during normal operation, the 90-degree angle between the chute and the pulper trough creates a cutting surface as the pulp rotates within the trough, making it difficult for the pulp to directly enter the settling well from the chute, frequently resulting in blockages. This significantly impacts pulping capacity and equipment wear. Furthermore, the cutting surface created by the pulper's rotation during operation further obstructs the chute inlet, causing blockages. This not only affects the normal operation of the pulper and hydraulic sludge remover but also accelerates wear on the pulper trough and auxiliary equipment, reducing their lifespan and increasing the risk of leakage and rupture. Utility Model Content

[0005] The purpose of this utility model is to provide a turbulence enhancement device for a pulper slag discharge system, in order to solve the problem mentioned in the background art that, during the operation of the pulper, the cutting surface generated by the rotation makes it difficult for the slurry to enter the settling well, causing blockage of the slag chute inlet. This not only affects the normal operation of the pulper and the hydraulic slag cleaner, but also accelerates the wear of the pulper tank and auxiliary equipment, reduces their service life, and increases the risk of leakage and rupture.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a turbulence enhancement device for a pulper slag discharge system, comprising a pulper, a slag chute fixedly connected to the lower right side of the pulper, and guide plates fixedly connected to the inner wall of the pulper, with the guide plates evenly distributed on the inner wall of the pulper. Simultaneously, a turbulence plate is fixedly connected to one end of the inner wall of the pulper near the slag chute. The turbulence plates are evenly distributed on the inner wall of the pulper. A baffle is provided on the inner wall of the slag chute via a reciprocating sliding assembly, and a limit rod is fixedly connected to the surface of the baffle near the end of the pulper. A slidable column is slidably connected through the limit rod. A motor is fixedly connected to the lower rear side of the pulper, and a rotating shaft is fixedly connected to the output end of the motor. The rotating shaft is rotatably disposed inside the pulper, and a connecting shaft is rotatably disposed inside the pulper.

[0007] Preferably, a fixing frame is fixedly connected to the surface of the connecting shaft, and the fixing frame is rotatably disposed inside the pulper, and a fixing rod is fixedly connected to the end of the fixing frame near the motor.

[0008] Preferably, a fixing block is fixedly connected to the surface of the rotating shaft, and the fixing block is rotatably disposed inside the pulper, and one end of the fixing block is sleeved and connected to the sliding rod.

[0009] Preferably, the other end of the sliding rod is sleeved and connected to the fixed rod, and a sliding column is rotatably arranged inside the pulper near the motor, and an auxiliary disturbance plate is fixedly connected inside the sliding column.

[0010] Preferably, the auxiliary disturbance plate is rotatably disposed inside the pulper, and the fixing frame is sleeved and connected to the outside of the auxiliary disturbance plate, and the fixing frame is rotatably disposed inside the pulper.

[0011] Preferably, a drive shaft is rotatably installed inside the pulper near the slag chute, and belts are sleeved and connected to both the surface of the drive shaft and the surface of the rotating shaft. The reciprocating sliding assembly includes a cylinder fixedly connected to the surface of the drive shaft.

[0012] Preferably, one end of the cylindrical surface is fitted with a connecting rod, and the other end of the connecting rod is fitted with the unblocking column. The unblocking column is slidably disposed inside the slag chute, and a support frame is fixedly connected to the inner wall of the slag chute. An impeller is rotatably disposed inside the support frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the turbulence enhancement device for the pulper slag discharge system adopts a novel structural design, the specific details of which are as follows:

[0014] (1) The turbulence enhancement device for the slag discharge system of the pulper can change the flow direction of the slurry by setting the turbulence plate and the auxiliary turbulence plate. The turbulence plate can also act as a buffer to reduce the cutting surface generated by the rotation of the slurry at the inlet of the slag chute, improve the processing efficiency of the settling well, and create a negative pressure zone above the inlet of the slurry, so that the slurry flows into the settling well stably, reduce the risk of blockage at the inlet of the slag chute, ensure the smooth operation of the slag discharge system, and reduce equipment failure and maintenance costs caused by blockage.

[0015] Furthermore, it can stabilize the slurry inlet flow rate of the sedimentation well and improve the processing capacity of the device. At the same time, it can stabilize the slag discharge of the pulper, reduce the accumulation of heavy slag in the tank, reduce wear, extend the service life of equipment and pipelines, and reduce replacement and maintenance costs.

[0016] (2) The turbulence enhancement device for the slag discharge system of the pulper can disturb and disperse the aggregates inside the slag chute through the set dredging column and impeller, so that they re-enter the slurry flow and are discharged with the water flow, thereby effectively avoiding the formation of blockage, ensuring the smooth flow of the slag chute, maintaining the stable operation of the slag discharge system, and at the same time keeping the inner wall of the slag chute smooth so that the slurry can flow smoothly.

[0017] Furthermore, it can make the flow rate of slurry in the slag chute more uniform and stable, avoiding areas where the flow rate is too slow. This not only increases the overall flow rate but also improves the slag discharge efficiency of the device.

[0018] (3) The turbulence enhancement device for the pulper slag discharge system improves the stability of the device during operation by setting limit rods and guide plates, preventing excessive displacement or shaking of the device during operation, ensuring that the relative positions between the components remain stable, thereby maintaining the integrity and stability of the entire device structure, and extending the service life of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the connection structure between the connecting rod and the cylinder of this utility model.

[0020] Figure 2 This is a schematic diagram of the connection structure between the pulper and the baffle plate of this utility model.

[0021] Figure 3 This is a schematic diagram of the connection structure between the pulper and the guide plate of this utility model.

[0022] Figure 4 This is a schematic diagram of the connection structure between the electric motor and the rotating shaft of this utility model.

[0023] Figure 5 This is a schematic diagram of the connection structure between the sliding column and the auxiliary disturbance plate of this utility model.

[0024] Figure 6 This is a schematic diagram of the connection structure between the transmission shaft and the cylinder of this utility model.

[0025] Figure 7 This is a schematic diagram of the connection structure between the support frame and the impeller of this utility model.

[0026] In the diagram: 1. Pulper; 2. Slag chute; 3. Guide plate; 4. Motor; 5. Shaft; 6. Fixed block; 7. Sliding rod; 8. Connecting shaft; 9. Fixed frame; 10. Sliding column; 11. Auxiliary disturbance plate; 12. Drive shaft; 13. Cylinder; 14. Connecting rod; 15. Unblocking column; 16. Baffle; 17. Limiting rod; 18. Support frame; 19. Impeller; 20. Dispersing plate; 21. Fixed rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1: By using the slurry chute 2, guide plate 3, and baffle 20, the flow direction of the slurry can be changed. Furthermore, the baffle 20 acts as a buffer, reducing the cutting surface caused by the slurry rotation at the inlet of the slurry chute 2, thus improving the processing efficiency of the sedimentation well. Figure 1 Figure 3As shown: It includes a pulper 1, a chute 2 fixedly connected to the lower right side of the pulper 1, and a guide plate 3 fixedly connected to the inner wall of the pulper 1. The guide plates 3 are evenly distributed on the inner wall of the pulper 1. At the same time, a baffle 20 is fixedly connected to the inner wall of the pulper 1 near the chute 2. The baffle 20 is evenly distributed on the inner wall of the pulper 1. A baffle 16 is provided on the inner wall of the chute 2 through a reciprocating sliding assembly. A limit rod 17 is fixedly connected to the surface of the baffle 16 near the pulper 1. The limit rod 17 is slidably connected to a dredging column 15. A motor 4 is fixedly connected to the lower rear side of the pulper 1. A rotating shaft 5 is fixedly connected to the output end of the motor 4. The rotating shaft 5 is rotatably disposed inside the pulper 1. At the same time, a connecting shaft 8 is rotatably disposed inside the pulper 1.

[0029] Workers use a conveying device to transport the slurry into the pulper 1 (e.g., ...). Figure 1 (As shown), and the operator starts the device, using the guide plate 3 and the baffle plate 20 installed on the inner wall of the pulper 1 to guide the slurry entering the chute 2, guiding the slurry to a predetermined path, preventing the slurry from flowing randomly in the chute 2, and enabling the slurry to be distributed more orderly in the chute 2. After the guide plate 3 guides the slurry to form a specific flow pattern, the slurry with a certain speed impacts the blades of the impeller 19. The force generated by the water flow on the blades drives the impeller 19 inside the support frame 18 (as shown). Figure 2 and Figure 7 As shown in the figure, it increases the relative movement of impurities and water in the slurry, prevents impurities from settling and aggregating, and enables the slurry to be stably discharged from the inside of the slag chute 2.

[0030] In Example 2, unlike Example 1, the use of the fixed frame 9, sliding column 10, and fixed block 6 stabilizes the slurry inflow into the sedimentation well and improves the processing capacity of the device. Figures 4-5 As shown: A fixing frame 9 is fixedly connected to the surface of the connecting shaft 8, and the fixing frame 9 is rotatably disposed inside the pulper 1. A fixing rod 21 is fixedly connected to one end of the surface of the fixing frame 9 near the motor 4. A fixing block 6 is fixedly connected to the surface of the rotating shaft 5, and the fixing block 6 is rotatably disposed inside the pulper 1. One end of the fixing block 6 is sleeved and connected to the sliding rod 7, and the other end of the sliding rod 7 is sleeved and connected to the fixing rod 21. A sliding column 10 is rotatably disposed inside the pulper 1 near the motor 4, and an auxiliary disturbance plate 11 is fixedly connected inside the sliding column 10. The auxiliary disturbance plate 11 is rotatably disposed inside the pulper 1, and a fixing frame 9 is sleeved and connected to the outside of the auxiliary disturbance plate 11. The fixing frame 9 is rotatably disposed inside the pulper 1.

[0031] When the motor 4 is working, it drives the output shaft 5 to rotate inside the pulper 1, and also drives the fixing block 6 on the surface of the shaft 5 to rotate inside the pulper 1 (e.g., ...). Figure 4As shown, the rotation of the fixed block 6 pulls the sliding rod 7 on the surface, and drives the fixed rod 21 at the other end of the sliding rod 7 to slide inside the pulper 1. This causes the fixed frame 9 on the surface of the fixed rod 21 to reciprocate inside the pulper 1 with the connecting shaft 8 as the center. Consequently, the auxiliary disturbance plate 11 sleeved on the surface of the fixed frame 9 reciprocates inside the pulper 1 with the sliding column 10 as the center (as shown). Figure 5 As shown in the figure, this disturbs the water flow at the end of the slag chute 2, allowing the slurry to flow steadily into the settling well and reducing the risk of blockage at the inlet of the slag chute 2.

[0032] In Example 3, unlike Example 2, the transmission shaft 12, cylinder 13, and connecting rod 14 are used to agitate and disperse the aggregates inside the slurry chute 2, allowing them to re-enter the slurry flow and be discharged with the water, thus effectively preventing blockage. Figures 6-7 As shown: Inside the pulper 1, a drive shaft 12 is rotatably installed near the slag chute 2. Both the surface of the drive shaft 12 and the surface of the rotating shaft 5 are fitted with belts. The reciprocating sliding assembly includes a cylinder 13 fixedly connected to the surface of the drive shaft 12. One end of the connecting rod 14 is fitted onto the surface of the cylinder 13, and the other end of the connecting rod 14 is fitted onto a dredging column 15. The dredging column 15 is slidably installed inside the slag chute 2. At the same time, a support frame 18 is fixedly connected to the inner wall of the slag chute 2, and an impeller 19 is rotatably installed inside the support frame 18.

[0033] Belts are installed on the surfaces of both the drive shaft 12 and the rotating shaft 5. Through belt drive, the rotating shaft 5 drives the drive shaft 12 to rotate inside the pulper 1, and also drives the cylinder 13 on the surface of the drive shaft 12 to rotate at the lower outer side of the pulper 1 (e.g., ...). Figure 6 As shown), the rotation of cylinder 13 causes the connecting rod 14 on the surface to slide, and the connecting rod 14 causes the unblocking column 15 at the other end to slide back and forth inside the slag chute 2 under the constraint of the limiting rod 17 (as shown). Figure 7 As shown), ensuring the unobstructed flow of the slag chute 2 and maintaining the stable operation of the slag discharge system, while always keeping the inner wall of the slag chute 2 smooth so that the slurry can flow smoothly. Simultaneously, when the water flow impacts the blades of the impeller 19, it applies a force to the blades. This force can be decomposed into a force perpendicular to the blade surface and a force parallel to the blade surface. The force perpendicular to the blade surface generates a torque around the central axis of the impeller 19, driving the impeller 19 to begin rotating (as shown). Figure 7 As shown in the figure, it can not only increase the overall flow rate, but also improve the slag discharge efficiency of the device.

[0034] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A turbulence enhancement device for a pulper slag discharge system, comprising a pulper (1), wherein a slag chute (2) is fixedly connected to the lower right side of the pulper (1), and a guide plate (3) is fixedly connected to the inner wall of the pulper (1), and the guide plates (3) are evenly distributed on the inner wall of the pulper (1), while a turbulence plate (20) is fixedly connected to one end of the inner wall of the pulper (1) near the slag chute (2). Its features are: The baffles (20) are distributed at equal angles on the inner wall of the pulper (1). The inner wall of the slag chute (2) is provided with a baffle (16) through a reciprocating sliding assembly. A limit rod (17) is fixedly connected to one end of the surface of the baffle (16) near the pulper (1), and a dredging column (15) is slidably connected through the limit rod (17). The pulper (1) is fixedly connected to a motor (4) at the lower rear end, and the output end of the motor (4) is fixedly connected to a rotating shaft (5). The rotating shaft (5) is rotatably installed inside the pulper (1), and a connecting shaft (8) is rotatably installed inside the pulper (1).

2. The turbulence enhancement device for a pulper slag discharge system according to claim 1, characterized in that: A fixing frame (9) is fixedly connected to the surface of the connecting shaft (8), and the fixing frame (9) is rotatably disposed inside the pulper (1), and a fixing rod (21) is fixedly connected to one end of the fixing frame (9) near the motor (4).

3. The turbulence enhancement device for a pulper slag discharge system according to claim 2, characterized in that: The rotating shaft (5) is fixedly connected to a fixing block (6), and the fixing block (6) is rotatably disposed inside the pulper (1), and the fixing block (6) is fitted with one end of a sliding rod (7).

4. The turbulence enhancement device for a pulper slag discharge system according to claim 3, characterized in that: The other end of the sliding rod (7) is fitted with the fixed rod (21), and a sliding column (10) is rotatably provided inside the pulper (1) near the motor (4), and an auxiliary disturbance plate (11) is fixedly connected inside the sliding column (10).

5. A turbulence-enhancing device for a pulper slag discharge system according to claim 4, characterized in that: The auxiliary disturbance plate (11) is rotatably disposed inside the pulper (1), and the fixed frame (9) is sleeved and connected to the outside of the auxiliary disturbance plate (11), and the fixed frame (9) is rotatably disposed inside the pulper (1).

6. The turbulence enhancement device for a pulper slag discharge system according to claim 1, characterized in that: The pulper (1) has a drive shaft (12) rotatably mounted inside the slag chute (2) and both the surface of the drive shaft (12) and the surface of the rotating shaft (5) are fitted with belts. The reciprocating sliding assembly includes a cylinder (13) fixedly connected to the surface of the drive shaft (12).

7. A turbulence-enhancing device for a pulper slag discharge system according to claim 6, characterized in that: One end of the connecting rod (14) is sleeved on the surface of the cylinder (13), and the other end of the connecting rod (14) is sleeved on the unblocking column (15). The unblocking column (15) is slidably disposed inside the slag chute (2). Meanwhile, a support frame (18) is fixedly connected to the inner wall of the slag chute (2), and an impeller (19) is rotatably disposed inside the support frame (18).

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