A pulp impurity remover for use in the papermaking industry

Abstract

This utility model relates to the field of light industrial technology and discloses a pulp impurity remover for use in the papermaking industry. It includes a fixed frame, with a housing fixedly connected to the inner wall of the fixed frame. A first disc is fixedly connected to the outer wall of the housing. Multiple screws are threaded onto the inner wall of the first disc, and a second disc is threaded onto the outer wall of the screws. A filtering mechanism is fixedly connected to the inner wall of the second disc, and two fixing mechanisms are installed on the outer wall of the filtering mechanism. The filtering mechanism includes a transmission pipe, the outer wall of which is fixedly connected to the inner wall of the second disc. In this utility model, by starting the motor at the bottom of the base plate, the driving force drives the filter barrel to rotate along the transmission pipe, causing the protrusions to move along a predetermined circumferential trajectory. Because the sliding column is on this trajectory, when the protrusions contact, they push the sliding column to create a height difference. With the cooperation of the limiting block and the limiting groove, the filter plate is stably pushed, forming continuous vibration.

Description

Technical Field

[0001] This utility model relates to the field of light industry technology, and in particular to a pulp impurity remover applied in the papermaking industry. Background Technology

[0002] The core raw material for papermaking is pulp, which includes various types such as wood pulp, straw pulp, and waste paper pulp. However, during the pulp preparation process, various contaminants such as sand, metal fragments, fiber bundles, and plastic impurities will be mixed in. If these impurities are not properly removed, they will not only damage papermaking equipment such as press rolls and blades, shortening their service life, but also cause defects such as holes and spots in the paper, reducing product quality, and even clogging pipes or filters, affecting production continuity and increasing downtime maintenance costs. As the papermaking industry develops towards large-scale production, especially with the widespread use of machine-made paper, traditional impurity removal methods such as manual screening and gravity sedimentation are no longer able to meet the production requirements of "efficient, accurate, and continuous impurity removal". Therefore, pulp impurity removers applied to the papermaking industry have emerged. The core principle of modern pulp impurity removers is based on centrifugal separation technology. When pulp is pumped into the equipment at high speed, it rotates at high speed along a specific flow channel, thereby generating a strong centrifugal force field. In this force field, impurities with a density greater than that of pulp will receive a stronger centrifugal force due to their greater mass and will be quickly thrown against the inner wall of the equipment. Then, under the push of gravity and water flow, they will sink down along the inner wall to the bottom discharge port and be discharged. In contrast, the pure pulp fibers with a lower density are subjected to a weaker centrifugal force and will form an upward vortex in the center of the equipment, flowing upward along the central axis and finally being discharged from the clear pulp outlet, thereby achieving efficient separation of impurities and pulp. Current pulp impurity removers, utilizing centrifugal separation technology, have played a significant positive role in improving pulp purity and ensuring papermaking continuity. However, the current single-stage centrifugal filter design still has obvious limitations. The single-stage centrifugal structure needs to withstand extremely high operating pressure to maintain separation efficiency, which not only increases equipment energy consumption and wear risks but also leads to unstable separation results due to pressure fluctuations. More importantly, single-stage filtration is difficult to handle complex impurity systems. Fine sand particles, lightweight plastic fragments, etc., often mix into the clear pulp due to insufficient centrifugal force or small density differences, resulting in poor filtration effects and potential defects in subsequent paper. This problem is particularly prominent when processing raw materials with high impurity content, such as waste paper pulp. Therefore, a pulp impurity remover for the papermaking industry is proposed to solve the above problems. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides a pulp impurity remover for the papermaking industry, aiming to improve the problem that the primary filtration in the existing technology is unable to cope with complex impurity systems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A pulp impurity remover for use in the papermaking industry includes a fixed frame, a housing fixedly connected to the inner wall of the fixed frame, a disc one fixedly connected to the outer wall of the housing, a plurality of screws threadedly connected to the inner wall of the disc one, a disc two threadedly connected to the outer wall of the plurality of screws, a filter mechanism fixedly connected to the inner wall of the disc two, and two fixed mechanisms installed on the outer wall of the filter mechanism. The filtration mechanism includes a transmission pipe, the outer wall of which is fixedly connected to the inner wall of the second disc, a gravity barrel fixedly connected to the outer wall of the transmission pipe, a base plate slidably connected to the inner wall of the gravity barrel, a motor fixedly connected to the bottom of the base plate, a filter barrel fixedly connected to the drive end of the motor, a filter plate slidably connected to the inner wall of the transmission pipe, a limit component fixedly connected to the outer wall of the filter plate, multiple sliding columns fixedly connected to the bottom of the filter plate, and a protrusion fixedly connected to the inner wall of the filter barrel. As a further description of the above technical solution: The fixing mechanism includes a fixing block, one side of which is fixedly connected to the outer wall of the gravity barrel. Two fixing plates are slidably connected to the inner wall of the base plate. A fixing column is slidably connected to the inner wall of the fixing block. A pull column is fixedly connected to the inner wall of the fixing column. A spring is sleeved on the outer wall of the fixing block. A protruding plate is fixedly connected to the outer wall of the fixing column. As a further description of the above technical solution: The limiting component includes two limiting blocks, and the two limiting blocks are fixedly connected to the outer wall of the filter plate on the side of their proximity. The inner wall of the transmission pipe has two limiting grooves. As a further description of the above technical solution: The outer wall of the limiting block is slidably connected to the inner wall of the limiting groove, and the bottom of the sliding column is slidably connected to the top of the base plate. As a further description of the above technical solution: The outer wall of the fixing plate is slidably connected to the inner wall of the gravity barrel, and the outer wall of the fixing plate is slidably connected to the inner wall of the fixing block; As a further description of the above technical solution: The outer wall of the fixed column is slidably connected to the inner wall of the fixed plate, and the outer wall of the convex plate is slidably connected to the inner wall of the fixed block. As a further description of the above technical solution: The bottom of the spring is fixedly connected to the top of the convex plate, and the top of the spring is fixedly connected to the inner wall of the fixing block; As a further description of the above technical solution: The bottom of the convex plate is in contact with the top of the fixed plate, the bottom of the sliding column is slidably connected to the outer wall of the convex block, and the bottom of the base plate is fixedly connected to the discharge port.

[0005] This utility model has the following beneficial effects: 1. In this utility model, by starting the motor at the bottom of the base plate, the driving force drives the filter barrel to rotate along the transmission pipe, causing the protrusion to move along a predetermined circumferential trajectory. Since the sliding column is on this trajectory, when the protrusion contacts, it will push the sliding column to generate a height difference. With the cooperation of the limiting block and the limiting groove, the filter plate is stably pushed to form continuous vibration. This design allows the slag remover to have a two-stage separation function. On the basis of centrifugal separation, impurities are screened out first by vibration, which improves the thoroughness of slag removal and greatly improves the operating efficiency of the equipment.

[0006] 2. In this utility model, when it is necessary to clean the inside of the slag remover, simply pull the pull column upwards to drive the fixed column and the convex plate to slide on the inner wall of the fixed block. At the same time, the convex plate compresses the spring to cause it to undergo elastic deformation and store potential energy until the fixed column and the fixed plate separate. Then, slide the fixed plate to detach it from the bottom plate, and the bottom plate can be disassembled along with the filter bucket. With the help of the cooperation of the second disc, the screw and the first disc, the shell and the transmission pipe can also be disassembled, thereby achieving a comprehensive cleaning of the inside of the equipment. After cleaning, the disassembly steps are reversed to reassemble the equipment, allowing the slag remover to quickly resume operation. This convenient disassembly and assembly design significantly reduces maintenance time and effectively improves the overall operating efficiency of the equipment. Attached Figure Description

[0007] Figure 1 This is a three-dimensional schematic diagram of a pulp impurity remover for use in the papermaking industry, as proposed in this utility model. Figure 2 This is a schematic diagram of the transmission pipe of a pulp impurity remover for use in the papermaking industry, as proposed in this utility model. Figure 3 This is a schematic diagram of the structure of a fixing plate for a pulp impurity remover applied in the papermaking industry, as proposed in this utility model. Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0008] Legend: 1. Fixing frame; 2. Housing; 3. Disc 1; 4. Screw; 5. Disc 2; 6. Filtering mechanism; 61. Transmission pipe; 62. Gravity tank; 63. Motor; 64. Base plate; 65. Filter plate; 66. Filter barrel; 67. Sliding column; 68. Protrusion; 69. Limiting assembly; 691. Limiting block; 692. Limiting groove; 7. Fixing mechanism; 71. Fixing block; 72. Fixing column; 73. Pull column; 74. Fixing plate; 75. Protrusion plate; 76. Spring; 8. Discharge port. Detailed Implementation

[0009] 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.

[0010] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a pulp impurity remover for the papermaking industry, including a fixed frame 1. The fixed frame 1 provides stable support for the entire remover, ensuring structural stability during operation and serving as the basic carrier for pulp impurity removal. A shell 2 is fixedly connected to the inner wall of the fixed frame 1, forming a channel for pulp conveying and preliminary treatment while protecting internal components. A disc 3 is fixedly connected to the outer wall of the shell 2. Multiple screws 4 are threadedly connected to the inner wall of the disc 3, and a disc 5 is threadedly connected to the outer wall of the multiple screws 4. The screws 4 tightly fix the disc 3 and the disc 5 through threaded connection, facilitating disassembly and installation and subsequent cleaning and maintenance. A filter mechanism 6 is fixedly connected to the inner wall of the disc 5, effectively removing impurities from the pulp and improving pulp purity. Two fixing mechanisms 7 are installed on the outer wall of the filter mechanism 6. The filtration mechanism 6 includes a transmission pipe 61, the outer wall of which is fixedly connected to the inner wall of the disc 5, providing a channel for pulp filtration. A gravity tank 62 is fixedly connected to the outer wall of the transmission pipe 61, and a bottom plate 64 is slidably connected to the inner wall of the gravity tank 62, sealing the bottom of the gravity tank 62. A motor 63 is fixedly connected to the bottom of the bottom plate 64, and a filter barrel 66 is fixedly connected to the drive end of the motor 63. The filter barrel 66 rotates under the drive of the motor 63, centrifugally filtering the pulp and separating impurities. A filter plate 65 is slidably connected to the inner wall of the transmission pipe 61, and the filter plate 65 filters the pulp. The pulp entering the transmission pipe 61 undergoes preliminary filtration. Vibration prevents impurities from clogging the filter and improves filtration efficiency, achieving primary filtration. A limiting component 69 is fixedly connected to the outer wall of the filter plate 65. The limiting component 69 restricts the movement direction of the filter plate 65, ensuring that the filter plate 65 can vibrate smoothly, enhancing the filtration effect and preventing deviation. Multiple sliding columns 67 are fixedly connected to the bottom of the filter plate 65. A protrusion 68 is fixedly connected to the inner wall of the filter barrel 66. The protrusion 68 rotates with the filter barrel 66 and pushes the sliding column 67 up and down when it comes into contact with the sliding column 67, causing the sliding column 67 to drive the filter plate 65 to vibrate up and down. The fixing mechanism 7 includes a fixing block 71, one side of which is fixedly connected to the outer wall of the gravity barrel 62, forming the basic frame of the fixing mechanism 7. Two fixing plates 74 are slidably connected to the inner wall of the base plate 64, connecting the base plate 64 and the fixing block 71. A fixing post 72 is slidably connected to the inner wall of the fixing block 71. When the fixing post 72 is inserted into the fixing plate 74, it locks the fixing plate 74; when it is pulled out, it unlocks, thus achieving the fixing and disassembly of the base plate 64, which is convenient to control. A pull post 73 is fixedly connected to the inner wall of the fixing post 72, which makes it easy for the operator to pull the fixing post 72, saving effort and making the insertion and removal of the fixing post 72 more convenient. A spring 76 is sleeved on the outer wall of the fixing block 71, and a protruding plate 75 is fixedly connected to the outer wall of the fixing post 72. The protruding plate 75 moves with the fixing post 72, compressing the spring 76 to deform it. At the same time, under the elastic force of the spring 76, the fixing post 72 is driven to reset, ensuring reliable locking.

[0011] Reference Figures 2 to 4 The limiting component 69 includes two limiting blocks 691. The adjacent sides of the two limiting blocks 691 are fixedly connected to the outer wall of the filter plate 65. The limiting blocks 691 move with the filter plate 65. The inner wall of the transmission pipe 61 is provided with two limiting grooves 692. The limiting grooves 692 provide sliding tracks for the limiting blocks 691. With the cooperation of the limiting blocks 691, the filter plate 65 can only slide up and down, and the vibration direction is stable. The outer wall of the limiting block 691 is slidably connected to the inner wall of the limiting groove 692. This connection method allows the limiting block 691 to slide smoothly along the limiting groove 692, effectively limiting the movement direction of the filter plate 65 and preventing the filter plate 65 from shaking and affecting the filtration effect. The bottom of the sliding column 67 is slidably connected to the top of the base plate 64. The base plate 64 provides support for the sliding column 67, ensuring that the sliding column 67 can stably contact the protrusion 68 and transmit power to drive the filter plate 65 to vibrate. The outer wall of the fixing plate 74 is slidably connected to the inner wall of the gravity barrel 62. The gravity barrel 62 restricts the movement direction of the fixing plate 74, ensuring that the fixing plate 74 can accurately cooperate with the fixing block 71 and the fixing post 72 to fix the base plate 64. The outer wall of the fixing plate 74 is slidably connected to the inner wall of the fixing block 71. The fixing block 71 provides a sliding channel for the fixing plate 74, allowing the fixing plate 74 to be smoothly inserted or removed, facilitating the disassembly and installation of the base plate 64. The outer wall of the fixing post 72 is slidably connected to the inner wall of the fixing plate 74. When the fixing post 72 is inserted into the fixing plate 74, it firmly locks the fixing plate 74. The base plate 64 is fixed and prevents it from sliding, ensuring that it is firmly fixed. When pulled out, it is unlocked for easy disassembly. The outer wall of the protruding plate 75 is slidably connected to the inner wall of the fixing block 71. The fixing block 71 restricts the movement direction of the protruding plate 75, ensuring that the protruding plate 75 can smoothly drive the fixing column 72 to move, making the locking and unlocking actions reliable. The bottom of the spring 76 is fixedly connected to the top of the protruding plate 75, and the top of the spring 76 is fixedly connected to the inner wall of the fixing block 71. This connection method allows the spring 76 to be compressed when the protruding plate 75 moves, and the stored elastic potential energy can effectively push the fixing column 72 to reset, realizing automatic locking. The bottom of the convex plate 75 contacts the top of the fixed plate 74. Under the elastic force of the spring 76, the convex plate 75 presses the fixed plate 74 tightly, enhancing the tightness of the fit between the fixed column 72 and the fixed plate 74 and preventing loosening. The bottom of the sliding column 67 is slidably connected to the outer wall of the protrusion 68. When the protrusion 68 rotates, it contacts the sliding column 67, pushing the sliding column 67 to move up and down, converting the rotation of the filter barrel 66 into the vibration of the filter plate 65, thus realizing power transmission. The bottom of the bottom plate 64 is fixedly connected to the discharge port 8, which is used to discharge the pulp after slag removal.

[0012] Working principle: The motor 63 located at the bottom of the base plate 64 is started, and the driving force of the motor 63 drives the filter barrel 66 to rotate in contact with the transmission pipe 61. This causes the protrusion 68 to make a circular motion along a predetermined circumferential path. The sliding column 67 is located on the circumferential path of the protrusion 68, so that the sliding column 67 can create a height difference when it contacts the protrusion 68. Thanks to the cooperation of the limiting block 691 and the limiting groove 692, the filter plate 65 can be stably pushed by the sliding column 67, so that the filter plate 65 can achieve a vibration effect. This gives the entire slag remover a two-stage separation function, thereby greatly improving the working efficiency of the entire slag remover. When cleaning the inside of the slag remover is required, simply pull the pull column 73 upwards. This causes the pull column 73 to drive the fixed column 72, along with the convex plate 75, to slide along the inner wall of the fixed block 71. Simultaneously, the convex plate 75 compresses the spring 76, causing the spring 76 to undergo elastic deformation, generating and storing elastic potential energy until the fixed column 72 and the fixed plate 74 separate. Then, slide the fixed plate 74 until it separates from the bottom plate 64, allowing the bottom plate 64 to be disassembled along with the filter bucket 66. Thanks to the cooperation of the disc 2 5, the screw 4, and the disc 1 3, the housing 2 and the transmission pipe 61 can be disassembled, thus enabling the cleaning of the entire slag remover's interior. When the slag remover is put back into operation after cleaning, simply reverse the disassembly process to reinstall it, thereby significantly improving the overall operating efficiency of the slag remover.

[0013] 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 paper pulp impurity remover applied to the papermaking industry, comprising a fixing frame (1), characterized in that: The inner wall of the fixing frame (1) is fixedly connected to the housing (2), the outer wall of the housing (2) is fixedly connected to the disc one (3), the inner wall of the disc one (3) is threaded with multiple screws (4), the outer wall of the multiple screws (4) is threaded with the disc two (5), the inner wall of the disc two (5) is fixedly connected to the filter mechanism (6), and the outer wall of the filter mechanism (6) is equipped with two fixing mechanisms (7). The filtration mechanism (6) includes a transmission pipe (61), the outer wall of which is fixedly connected to the inner wall of the second disc (5), a gravity barrel (62) is fixedly connected to the outer wall of the transmission pipe (61), a base plate (64) is slidably connected to the inner wall of the gravity barrel (62), a motor (63) is fixedly connected to the bottom of the base plate (64), a filter barrel (66) is fixedly connected to the drive end of the motor (63), a filter plate (65) is slidably connected to the inner wall of the transmission pipe (61), a limit component (69) is fixedly connected to the outer wall of the filter plate (65), a plurality of sliding columns (67) are fixedly connected to the bottom of the filter plate (65), and a protrusion (68) is fixedly connected to the inner wall of the filter barrel (66).

2. A pulp trash remover for use in the paper industry according to claim 1, characterized in that: The fixing mechanism (7) includes a fixing block (71), one side of which is fixedly connected to the outer wall of the gravity barrel (62). Two fixing plates (74) are slidably connected to the inner wall of the bottom plate (64). A fixing column (72) is slidably connected to the inner wall of the fixing block (71). A pull column (73) is fixedly connected to the inner wall of the fixing column (72). A spring (76) is sleeved on the outer wall of the fixing block (71). A protruding plate (75) is fixedly connected to the outer wall of the fixing column (72).

3. A pulp trash remover for use in the paper industry as claimed in claim 1, wherein: The limiting component (69) includes two limiting blocks (691), and the two limiting blocks (691) are fixedly connected to the outer wall of the filter plate (65) on the side that is close to each other. The inner wall of the transmission pipe (61) has two limiting grooves (692).

4. A pulp trash remover for use in the paper industry according to claim 3, characterized in that: The outer wall of the limiting block (691) is slidably connected to the inner wall of the limiting groove (692), and the bottom of the sliding column (67) is slidably connected to the top of the base plate (64).

5. A pulp trash remover for use in the paper industry as claimed in claim 2, wherein: The outer wall of the fixing plate (74) is slidably connected to the inner wall of the gravity barrel (62), and the outer wall of the fixing plate (74) is slidably connected to the inner wall of the fixing block (71).

6. A pulp trash remover for use in the paper industry as claimed in claim 2, wherein: The outer wall of the fixed column (72) is slidably connected to the inner wall of the fixed plate (74), and the outer wall of the protruding plate (75) is slidably connected to the inner wall of the fixed block (71).

7. A pulp trash remover for use in the paper industry as claimed in claim 2, wherein: The bottom of the spring (76) is fixedly connected to the top of the protruding plate (75), and the top of the spring (76) is fixedly connected to the inner wall of the fixing block (71).

8. A pulp trash remover for use in the paper industry as claimed in claim 2, wherein: The bottom of the protruding plate (75) is in contact with the top of the fixed plate (74), the bottom of the sliding column (67) is slidably connected to the outer wall of the protrusion (68), and the bottom of the base plate (64) is fixedly connected to the discharge port (8).

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