A high-efficiency impurity removal device for pulp raw materials

Abstract

This utility model relates to the field of pulp impurity removal technology, and discloses a high-efficiency impurity removal device for pulp raw materials, including an impurity removal tank. A connecting pipe is fixedly connected to the middle left side of the impurity removal tank, and a stirring tank is fixedly connected to the upper side of the connecting pipe. A pulp inlet is fixedly connected to the upper left side of the stirring tank, and a first motor is fixedly connected to the upper front end of the stirring tank. Stirring rods are rotatably connected to both the front and rear ends of the stirring tank. A driving gear is provided at the upper front end of the stirring tank, and a driven gear is meshed with the rear outer wall of the driving gear. The middle parts of the driving gear and the driven gear are respectively fixedly connected to the upper outer side of the stirring rods. In this utility model, the stirring rack can penetrate deep into the pulp, effectively breaking up clumps of pulp, and fully exposing impurities encased in the pulp, preventing impurities from being trapped in subsequent screening stages due to being encased in pulp.

Description

Technical Field

[0001] This utility model relates to the field of pulp impurity removal technology, and in particular to a high-efficiency impurity removal device for pulp raw materials. Background Technology

[0002] In the papermaking industry, the preparation of high-quality pulp is a crucial step in ensuring paper quality. As market demands for paper quality continue to rise, from ordinary writing paper to high-end specialty paper, the requirements for indicators such as pulp purity and fiber integrity are becoming increasingly stringent. Efficient and precise pulp processing technology has become the focus of the industry.

[0003] Traditional mixing equipment has many shortcomings when processing pulp raw materials. Traditional mixing devices cannot fully expose impurities when breaking up clumps, which increases the difficulty of subsequent impurity removal and reduces production efficiency. Ordinary screens have a simple structure, and impurities are easy to accumulate and clog the mesh when processing pulp, resulting in low screening efficiency and frequent shutdowns for cleaning, which affects the continuity of production. Moreover, relying solely on gravity or simple mechanical vibration screening is difficult to accurately separate impurities from qualified pulp, resulting in high impurity residue levels, which cannot meet the requirements of high-end paper production. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies by proposing a highly efficient impurity removal device for pulp raw materials, which ensures thorough and uniform mixing, precise sieving and separation of impurities, and complete removal of impurities.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A high-efficiency impurity removal device for pulp raw materials includes an impurity removal barrel. A connecting pipe is fixedly connected to the middle left side of the impurity removal barrel. A mixing tank is fixedly connected to the upper side of the connecting pipe. A pulp inlet is fixedly connected to the upper left side of the mixing tank. A first motor is fixedly connected to the upper front end of the mixing tank. A mixing rod is rotatably connected to both the front and rear ends of the mixing tank. A drive gear is provided at the upper front end of the mixing tank. A driven gear is meshed with the rear outer wall of the drive gear. The middle parts of the drive gear and the driven gear are respectively fixedly connected to the upper outer side of the mixing rod. The drive end of the first motor is fixedly connected to the upper side of the drive gear. Multiple mixing frames are fixedly connected to the outer wall of the mixing rod. A screening component is also provided inside the impurity removal barrel.

[0006] Furthermore, the impurity screening assembly includes a rotating shaft rotatably connected to the middle right side of the impurity removal barrel, and a second motor is fixedly connected to the outer right side of the impurity removal barrel, with the drive end of the second motor fixedly connected to the right side of the rotating shaft.

[0007] Furthermore, a screen is rotatably connected to the inner wall of the left end of the impurity removal barrel, a spiral plate is fixedly connected to the inner wall of the screen, and a connecting shaft is fixedly connected to the middle of the right side of the screen, with the middle of the connecting shaft fixedly connected to the left end of the rotating shaft.

[0008] Furthermore, a water pump is fixedly connected to the middle of the rear side of the impurity removal tank, and a water delivery pipe is fixedly connected to the upper side of the water pump.

[0009] Furthermore, a diversion pipe is fixedly connected to the front side of the water supply pipe, and multiple nozzles are fixedly connected to the lower side of the diversion pipe. The nozzles are arranged on the upper side of the inner wall of the impurity removal tank.

[0010] Furthermore, a slurry outlet is fixedly connected to the lower side of the impurity removal tank, and an impurity discharge outlet is fixedly connected to the lower right side of the impurity removal tank.

[0011] Furthermore, an inspection door is rotatably connected to the upper front end of the impurity removal barrel, and a handle is fixedly connected to the front side of the inspection door.

[0012] Furthermore, a bracket is fixedly connected to the lower side of the impurity removal barrel, a support leg is fixedly connected to the lower side of the bracket, and a receiving basin is fixedly connected inside the support leg.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the first motor drives the active gear and the driven gear to mesh and transmit power, which drives the front and rear stirring rods to rotate synchronously. Together with the plate-shaped stirring frame fixed on the outer wall, the pulp is stirred in all directions. This transmission method ensures that the stirring rods rotate at the same speed and the force is balanced, so that the stirring frame can penetrate into the pulp and effectively break up the clumps of pulp. At the same time, it fully exposes the impurities wrapped in the pulp and avoids the impurities from being unable to be intercepted in the subsequent screening process because they are wrapped in pulp.

[0014] 2. In this utility model, the second motor drives the rotating shaft and connecting shaft to drive the screen and the spiral plate to rotate synchronously. The spiral plate pushes the pulp to move at a uniform speed along the screen, so that the pulp and the screen are in full contact. The pulp that meets the requirements can pass through the screen mesh efficiently, while impurities are accurately intercepted. At the same time, the water flow sprayed from the nozzle can not only prevent the screen from clogging, but also further peel off the small impurities adhering to the pulp, realizing efficient and accurate separation of pulp and impurities, and more thorough removal of impurities. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an efficient impurity removal device for pulp raw materials proposed in this utility model. Figure 2 A schematic diagram of the mixing tank of a high-efficiency impurity removal device for pulp raw materials proposed in this utility model; Figure 3 This is a cross-sectional view of the impurity removal barrel of a high-efficiency impurity removal device for pulp raw materials proposed in this utility model.

[0016] Legend: 1. Impurity discharge port; 2. Support leg; 3. Bracket; 4. Impurity removal bucket; 5. Connecting pipe; 6. Mixing tank; 7. Mixing rod; 8. First motor; 9. Slurry inlet; 10. Drive gear; 11. Driven gear; 12. Mixing frame; 13. Second motor; 14. Inspection door; 15. Handle; 16. Receiving basin; 17. Spiral plate; 18. Rotating shaft; 19. Connecting shaft; 20. Slurry outlet; 21. Water pump; 22. Water delivery pipe; 23. Diverter pipe; 24. Nozzle; 25. Screen. Detailed Implementation

[0017] 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.

[0018] Reference Figures 1-2 An embodiment of this utility model provides an efficient impurity removal device for pulp raw materials, comprising an impurity removal tank 4, a connecting pipe 5 fixedly connected to the middle left side of the impurity removal tank 4, a mixing tank 6 fixedly connected to the upper side of the connecting pipe 5, a pulp inlet 9 fixedly connected to the upper left side of the mixing tank 6, a first motor 8 fixedly connected to the upper front end of the mixing tank 6, a mixing rod 7 rotatably connected to both the front and rear ends of the mixing tank 6, a drive gear 10 provided at the upper front end of the mixing tank 6, a driven gear 11 meshing with the rear outer wall of the drive gear 10, the middle parts of the drive gear 10 and the driven gear 11 respectively fixedly connected to the upper outer side of the mixing rod 7, the drive end of the first motor 8 fixedly connected to the upper side of the drive gear 10, and multiple mixing frames 12 fixedly connected to the outer wall of the mixing rod 7.

[0019] The impurity removal tank 4 has a horizontal columnar structure with a hollow cavity inside to accommodate the space required for pulp impurity removal. The connecting pipe 5 is a through-tube structure used to transport pulp between the mixing tank 6 and the impurity removal tank 4. The mixing tank 6 is a pulp mixing container. The pulp inlet 9 facilitates the smooth introduction of pulp raw materials into the mixing tank 6. The first motor 8 provides a power source for the mixing operation. The two ends of the stirring rod 7 rotate on the upper and lower sides of the mixing tank 6. When the first motor 8 starts, it can drive the drive gear 10 to rotate through the connecting column, thereby driving the driven gear 11 and the stirring rods 7 on the front and rear sides to rotate synchronously. The stirring frame 12 has a sheet-like structure, and the stirring frames 12 on the outer walls of the stirring rods 7 on both sides are cross-distributed. When the stirring rod 7 rotates, it can fully stir the pulp in the mixing tank 6 to prevent pulp from clumping and initially break up impurities.

[0020] Reference Figure 1 , Figure 3A rotating shaft 18 is rotatably connected to the middle right side of the impurity removal tank 4. A second motor 13 is fixedly connected to the outer right side of the impurity removal tank 4, and the drive end of the second motor 13 is fixedly connected to the right side of the rotating shaft 18. A screen 25 is rotatably connected to the inner left side of the impurity removal tank 4, and a spiral plate 17 is fixedly connected to the inner wall of the screen 25. A connecting shaft 19 is fixedly connected to the middle right side of the screen 25, and the middle part of the connecting shaft 19 is fixedly connected to the left end of the rotating shaft 18. A water pump 21 is fixedly connected to the middle rear side of the impurity removal tank 4, and a water supply pipe 22 is fixedly connected to the upper side of the water pump 21 for water supply. A diversion pipe 23 is fixedly connected to the front side of pipe 22. Multiple nozzles 24 are fixedly connected to the lower side of diversion pipe 23. The nozzles 24 are located on the upper side of the inner wall of the impurity removal tank 4. A slurry outlet 20 is fixedly connected to the lower side of the impurity removal tank 4. An impurity discharge outlet 1 is fixedly connected to the lower right side of the impurity removal tank 4. An inspection door 14 is rotatably connected to the upper front side of the impurity removal tank 4. A handle 15 is fixedly connected to the front side of the inspection door 14. A bracket 3 is fixedly connected to the lower side of the impurity removal tank 4. A support leg 2 is fixedly connected to the lower side of the bracket 3. A receiving basin 16 is fixedly connected inside the support leg 2.

[0021] The rotating shaft 18 is rotatably connected to the right side wall of the impurity removal barrel 4 via a sealed bearing, ensuring the sealing of the impurity removal barrel 4. The second motor 13 is fixed to the outer wall of the impurity removal barrel 4 via a bracket 3, and its drive end is fixedly connected to the right side of the rotating shaft 18, providing power for the rotation of the rotating shaft 18. The screen 25 has a cylindrical mesh structure, and its mesh size is adapted to the size of the impurities to be removed. The spiral plate 17 extends spirally along the inner wall of the screen 25. The connecting shaft 19 is vertically fixed to the right side of the screen 25, and its right end is fixedly connected to... Connected to the left end of the rotating shaft 18, when the second motor 13 drives the rotating shaft 18 to rotate, it can drive the screen 25 and the spiral plate 17 to rotate synchronously through the connecting shaft 19. The spiral plate 17 can push the pulp to move from left to right along the inside of the screen 25. At the same time, the qualified part of the pulp falls into the bottom of the impurity removal tank 4 through the mesh of the screen 25, while the impurities are intercepted and transported to the right end with the spiral plate 17. The water inlet of the water pump 21 is connected to an external water source, and the water delivery pipe 22 is used to transport the water pumped by the water pump 21 to the diversion pipe 23. The diversion pipe 23 is horizontally arranged on the upper side of the outer wall of the impurity removal tank 4, and multiple nozzles 24 are fixedly connected to its lower side. The nozzles 24 are evenly distributed on the upper side of the inner wall of the impurity removal tank 4 below the diversion pipe 23, and the water spraying direction of the nozzles 24 is set towards the screen 25, which can wash the surface and internal pulp of the screen 25, prevent the screen 25 from clogging and improve the impurity removal effect. The pulp outlet 20 is located at the center of the bottom of the impurity removal tank 4 and is used to discharge the qualified pulp after screening. The impurity discharge outlet 1 is located at the right end of the screen 25. Corresponding to the outlet, it is used to discharge impurities trapped by the screen 25. The inspection door 14 is rotatably connected to the impurity removal tank 4 via a rotating shaft. Its size matches the inspection port on the front side of the impurity removal tank 4. The handle 15 facilitates opening and closing the inspection door 14 so as to inspect and maintain the internal components of the impurity removal tank 4. The bracket 3 is used to support the weight of the impurity removal tank 4 and the entire device. The support leg 2 is used to support the device on the ground. The receiving basin 16 is located directly below the pulp outlet 20 and is used to temporarily receive the pulp discharged from the pulp outlet 20.

[0022] Working principle: After the pulp raw material to be processed is introduced into the mixing tank 6 through the pulp inlet 9, the first motor 8 is started. The first motor 8 drives the drive gear 10 to rotate through the connecting column. The drive gear 10 and the driven gear 11 transmit power through tooth meshing, which in turn drives the stirring rods 7 connected to the upper and lower parts of the mixing tank 6 to rotate synchronously. The plate-shaped stirring frame 12 fixed on the outer wall of the stirring rod 7 rotates together, which fully stirs the pulp in the mixing tank 6. Then the valve is opened, and the pulp is transported from the mixing tank 6 to the connecting pipe 5. Inside the impurity removal tank 4, the second motor 13 is started. It is fixed to the outer wall of the impurity removal tank 4 via a bracket 3. The drive end is directly connected to the rotating shaft 18, which rotates stably with the help of sealed bearings. The rotating shaft 18 rotates synchronously with the screen 25 and the spiral plate 17 extending spirally along its inner wall via a connecting shaft 19. The pulp entering the screen 25 moves slowly from left to right along the screen 25 under the pushing action of the spiral plate 17. Simultaneously, the portion of the pulp that meets the requirements falls through the mesh of the screen 25 into the bottom of the impurity removal tank 4, while impurities... Because the impurities cannot pass through the mesh and are trapped by the screen 25, and move to the right end of the screen 25 under the continuous push of the spiral plate 17, to prevent the screen 25 from being blocked by the accumulation of impurities, the water pump 21 is connected to an external water source at its inlet end. Water is delivered through the water pipe 22 to the diversion pipe 23, which is set horizontally on the upper side of the outer wall of the impurity removal tank 4. The diversion pipe 23 diverts the water to the nozzle 24. The sprayed water washes the surface and internal pulp of the screen 25, which can not only disperse the impurities and pulp attached to the screen 25, ensuring that the screen 25 is transparent, but also further assist the paper... After the pulp and impurities are separated, the qualified pulp that falls to the bottom of the impurity removal tank 4 is collected and discharged through the pulp outlet 20 located in the center of the bottom of the impurity removal tank 4. The receiving basin 16 directly below the pulp outlet 20 temporarily receives the qualified pulp, while the impurities that are intercepted by the screen 25 and transported to the right end are discharged through the impurity discharge outlet 1 corresponding to the right end outlet of the screen 25. If it is necessary to inspect and maintain the internal components of the impurity removal tank 4, the maintenance work can be completed by opening the maintenance door 14, which is rotatably connected to the impurity removal tank 4 via the rotating shaft, through the handle 15.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high efficiency impurity removal device for pulp raw material, characterized by, The device includes a cleaning barrel (4), a connecting pipe (5) is fixedly connected to the middle left side of the cleaning barrel (4), a mixing tank (6) is fixedly connected to the upper side of the connecting pipe (5), a slurry inlet (9) is fixedly connected to the upper left side of the mixing tank (6), a first motor (8) is fixedly connected to the upper front end of the mixing tank (6), a stirring rod (7) is rotatably connected to both the front and rear ends of the mixing tank (6), a drive gear (10) is provided at the upper front end of the mixing tank (6), a driven gear (11) is meshed with the rear outer wall of the drive gear (10), the middle parts of the drive gear (10) and the driven gear (11) are respectively fixedly connected to the upper outside of the stirring rod (7), the drive end of the first motor (8) is fixedly connected to the upper side of the drive gear (10), a plurality of stirring frames (12) are fixedly connected to the outer wall of the stirring rod (7), and a screening component is also provided inside the cleaning barrel (4).

2. A high efficiency impurity removal device for paper pulp raw material according to claim 1, characterized in that: The sieving assembly includes a rotating shaft (18) rotatably connected to the middle right side of the impurity removal barrel (4). A second motor (13) is fixedly connected to the outer right side of the impurity removal barrel (4), and the drive end of the second motor (13) is fixedly connected to the right side of the rotating shaft (18).

3. A high efficiency impurity removal device for paper pulp raw material according to claim 1, characterized in that: The inner wall of the left end of the impurity removal barrel (4) is rotatably connected to a screen (25), the inner wall of the screen (25) is fixedly connected to a spiral plate (17), the middle right side of the screen (25) is fixedly connected to a connecting shaft (19), and the middle part of the connecting shaft (19) is fixedly connected to the left end of the rotating shaft (18).

4. The efficient device for removing impurities of paper pulp raw material according to claim 1, characterized in that: A water pump (21) is fixedly connected to the middle of the rear side of the impurity removal tank (4), and a water delivery pipe (22) is fixedly connected to the upper side of the water pump (21).

5. A high efficiency decontamination device for pulp feedstock according to claim 4, characterized in that: A diversion pipe (23) is fixedly connected to the front side of the water supply pipe (22), and a plurality of nozzles (24) are fixedly connected to the lower side of the diversion pipe (23). The nozzles (24) are set on the upper side of the inner wall of the impurity removal tank (4).

6. The high-efficiency impurity removal device for pulp raw materials according to claim 1, characterized in that: The lower side of the impurity removal tank (4) is fixedly connected to a slurry outlet (20), and the lower right side of the impurity removal tank (4) is fixedly connected to an impurity discharge outlet (1).

7. A high efficiency impurity removal device for paper pulp raw material according to claim 1, characterized in that: The front upper end of the impurity removal bucket (4) is rotatably connected to an inspection door (14), and the front side of the inspection door (14) is fixedly connected to a handle (15).

8. A high efficiency impurity removal device for paper pulp raw material according to claim 1, characterized in that: The lower side of the impurity removal bucket (4) is fixedly connected to a bracket (3), the lower side of the bracket (3) is fixedly connected to a support leg (2), and the inside of the support leg (2) is fixedly connected to a receiving basin (16).

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