Paper pulp deinking device for waste paper recycling
By designing a pulp deinking device with a stirring rack and a scraper assembly, the problem of air outlet blockage caused by foam accumulation was solved, achieving efficient foam discharge and sediment scraping, thus improving the processing efficiency and quality of pulp deinking.
Patent Information
- Application Number
- CN202423124122.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-17
AI Technical Summary
In existing pulp deinking devices, foam accumulation during the deinking process prevents the scraper from reaching and expelling the foam, and some foam cannot be discharged, which can easily cause blockage of the air outlet, affecting processing efficiency and quality.
Design a pulp deinking device including a stirring rack, a foam scraper assembly, and an anti-clogging assembly. The stirring rack mixes chemical agents with pulp to form foam, and the foam scraper assembly pushes the foam out. At the same time, the anti-clogging assembly scrapes away the sediment to prevent the air outlet from being blocked.
It effectively promotes foam discharge, prevents air outlet blockage, improves deinking efficiency and quality, and enhances the convenience of the device.
Smart Images

Figure CN223496916U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste paper recycling, and in particular to a pulp deinking device for waste paper recycling. Background Technology
[0002] Waste paper recycling refers to the process of turning used paper, cardboard and other paper materials into reusable pulp through a series of processing steps, and then manufacturing new paper products. Pulp deinking is a crucial step in the waste paper recycling process, which is specifically used to remove ink, coatings and other non-fibrous impurities printed on waste paper.
[0003] Existing pulp deinking methods typically involve pouring pulp into a flotation cell, where gas is introduced to form bubbles. Ink particles adhere to the surface of these bubbles, and as they rise to the top of the liquid, a foam layer is formed, thus achieving pulp deinking. However, during the deinking process, some foam accumulates on one side, preventing the scraper from reaching and removing it, which affects the complete removal of ink. Furthermore, the scraper lacks the ability to scrape away settled paper or impurities, easily causing blockages that prevent gas from entering, thus affecting processing efficiency and quality, and making it inconvenient to use.
[0004] Therefore, it is necessary to design a waste paper recycling pulp deinking device that can push the foam during deinking while scraping the settled paper or impurities to prevent some foam from being unable to be discharged, prevent the air outlet from being blocked and preventing gas from entering, improve the efficiency and quality of processing, and be easy to use. Utility Model Content
[0005] A pulp deinking device for waste paper recycling includes a base, a flotation frame, a motor, a stirring frame, a first transmission assembly, a rotating frame, a skimmer assembly, and an anti-clogging assembly. The flotation frame is connected to the upper side of the base, and multiple air outlets are opened on the base. The motor is connected to the front of the flotation frame, and the stirring frame is connected to the output shaft of the motor. The stirring frame is rotatably connected to the flotation frame. The rotating frame is rotatably connected to the upper left of the flotation frame. The first transmission assembly is provided between the rotating frame and the stirring frame. The skimmer assembly for pushing foam is provided between the flotation frame and the stirring frame. The anti-clogging assembly for preventing the air outlets from being blocked is provided between the flotation frame and the skimmer assembly.
[0006] Optionally, the first transmission assembly includes a first pulley and a first flat belt. The front of both the stirring frame and the rotating frame are connected to the first pulley, and the first flat belt is wound around the first pulley.
[0007] Optionally, the skimming assembly includes a guide frame, a second transmission assembly, a bevel gear, a first reciprocating screw, a sliding frame, an adjusting frame, and a pusher plate. The guide frame is connected to the upper front side of the flotation frame, the first reciprocating screw is rotatably connected to the upper part of the flotation frame, the bevel gear is connected to the right side of the first reciprocating screw, and the bevel gear is also rotatably connected to the upper right part of the flotation frame. The two bevel gears mesh with each other. A second transmission assembly is provided between the bevel gear on the flotation frame and the stirring frame. The sliding frame is threadedly connected to the first reciprocating screw. The flotation frame and the guide frame are both in contact with the sliding frame. The adjusting frame is slidably connected to the sliding frame, and the adjusting frame is slidably connected to the guide frame. The pusher plate is connected to the adjusting frame.
[0008] Optionally, the second transmission assembly includes a second pulley and a second flat belt. The front part of the bevel gear on the flotation frame and the outer side of the front part of the stirring frame are both connected to the second pulley, and the second flat belt is wound between the second pulleys.
[0009] Optionally, the anti-clogging component includes a scraper, a movable frame, a second reciprocating screw, and a third transmission component. The movable frame is slidably connected to the upper rear part of the float frame, and a scraper is connected to the lower side of the movable frame. The scraper contacts the base. The second reciprocating screw is rotatably connected to the upper rear side of the float frame. The second reciprocating screw is connected to the movable frame by a thread. A third transmission component is provided between the first reciprocating screw and the second reciprocating screw.
[0010] Optionally, the third transmission assembly includes a third pulley and a third flat belt. The third pulley is connected to the outer right side of both the first reciprocating screw and the second reciprocating screw, and a third flat belt is wound between the third pulleys.
[0011] The beneficial effects are: 1. This utility model uses the left and right movement of the sliding frame to drive the push plate to move and push the foam. The left and right movement of the moving frame drives the scraper to move and scrape the settled paper or impurities. Thus, it can push the foam and scrape the settled paper or impurities at the same time during deinking, preventing some foam from not being discharged and preventing the air outlet from being blocked so that the gas cannot enter, thereby improving the efficiency and quality of processing and being convenient to use.
[0012] 2. This utility model involves pouring the pre-treated pulp into a flotation frame, adding specific chemical agents to the flotation frame, and then starting a motor. The motor drives the stirring rack to rotate, mixing the chemical agents and pulp, reducing the adhesion between the ink and the fiber, and helping to form foam. This process can effectively mix the chemical agents and pulp, accelerate the chemical reaction, and improve the mixing efficiency. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0014] Figure 2This is a cross-sectional three-dimensional structural diagram of the present invention.
[0015] Figure 3 This is a three-dimensional structural diagram of the shaving assembly of this utility model.
[0016] Figure 4 This is a three-dimensional structural diagram of the first type of anti-clogging component of this utility model.
[0017] Figure 5 This is a schematic diagram of the second three-dimensional structure of the anti-clogging component of this utility model.
[0018] Explanation of reference numerals in the attached drawings: 1_base, 2_float frame, 3_air outlet, 4_motor, 5_stirring rack, 6_first transmission assembly, 7_rotating frame, 8_guide frame, 9_second transmission assembly, 10_bevel gear, 11_first reciprocating screw, 12_sliding frame, 13_adjusting frame, 14_push plate, 15_scraper, 16_moving frame, 17_second reciprocating screw, 18_third transmission assembly. Detailed Implementation
[0019] A pulp deinking device for waste paper recycling, such as Figures 1-5As shown, the system includes a base 1, a flotation frame 2, a motor 4, a stirring rack 5, a first transmission assembly 6, a rotating frame 7, a guide frame 8, a second transmission assembly 9, a bevel gear 10, a first reciprocating screw 11, a sliding frame 12, an adjusting frame 13, a pusher plate 14, a scraper 15, a moving frame 16, a second reciprocating screw 17, and a third transmission assembly 18. The flotation frame 2 is connected to the upper side of the base 1, and multiple air outlets 3 are opened on the base 1. The motor 4 is connected to the front of the flotation frame 2, and the stirring rack 5 is connected to the output shaft of the motor 4. The stirring rack 5 is rotatably connected to the flotation frame 2. A rotating frame 7 is rotatably connected to the upper left. A first transmission assembly 6 is provided between the rotating frame 7 and the stirring frame 5. The first transmission assembly 6 includes a first pulley and a first flat belt. The front of both the stirring frame 5 and the rotating frame 7 are connected to the first pulleys, and the first flat belt is wound between the first pulleys. A guide frame 8 is connected to the upper front side of the flotation frame 2. A first reciprocating screw 11 is rotatably connected to the upper part of the flotation frame 2. A bevel gear 10 is connected to the right side of the first reciprocating screw 11. A bevel gear 10 is also rotatably connected to the upper right part of the flotation frame 2. The two bevel gears 10 mesh with each other. A second transmission assembly 9 is provided between the bevel gear 10 and the stirring frame 5. The second transmission assembly 9 includes a second pulley and a second flat belt. The front part of the bevel gear 10 on the flotation frame 2 and the outer front part of the stirring frame 5 are both connected to the second pulleys. The second flat belt is wound between the second pulleys. A sliding frame 12 is threadedly connected to the first reciprocating screw 11. The flotation frame 2 and the guide frame 8 are both in contact with the sliding frame 12. An adjusting frame 13 is slidably connected to the sliding frame 12. The adjusting frame 13 is slidably connected to the guide frame 8. A pusher plate 14 is connected to the adjusting frame 13. A movable frame 16 is slidably connected to the upper rear of frame 2. A scraper 15 is connected to the lower side of the movable frame 16. The scraper 15 contacts the base 1. A second reciprocating screw 17 is rotatably connected to the upper rear side of the flotation frame 2. The second reciprocating screw 17 is connected to the movable frame 16 by a thread. A third transmission assembly 18 is provided between the first reciprocating screw 11 and the second reciprocating screw 17. The third transmission assembly 18 includes a third pulley and a third flat belt. The third pulley is connected to the outer right side of both the first reciprocating screw 11 and the second reciprocating screw 17. A third flat belt is wound between the third pulleys.
[0020] This device can be used when deinking pulp is required for waste paper recycling. The base 1 is brought into contact with the ground, and a bubble generator is connected to the base 1. The pre-treated pulp is then poured into a flotation frame 2, and specific chemical agents are added. The motor 4 is then started, driving the stirring frame 5 to mix the chemical agents and pulp. This process reduces the adhesion between the ink and fibers and helps form foam, thereby accelerating the chemical reaction and improving mixing efficiency. Finally, the bubble generator is activated, allowing gas to enter the base 1. The gas then enters the pulp through outlet 3, dispersing it into tiny bubbles. Ink particles adhere to the surface of these bubbles, rising to the top of the liquid to form a foam layer, thus deinking the pulp. Simultaneously, the motor 4 drives the stirring frame 5 to rotate, which in turn drives the first pulley, causing the first flat belt to rotate. This, in turn, causes the rotating frame 7 to rotate, scraping off the floating foam, which then slides down the flotation frame 2 and flows out. The rotation of the stirring frame 5 also drives the second pulley to rotate, causing the second flat belt to rotate, which in turn causes the bevel gear 10 to rotate. The two bevel gears 10 mesh together, causing the first reciprocating... The lead screw 11 rotates, causing the sliding frame 12 to move left and right along the guide frame 8 under the action of the thread. This causes the adjusting frame 13 and the pusher plate 14 to move and push the foam, moving the foam from the right to the left. Then, the rotating frame 7 rotates to push the foam out. When it moves to the leftmost position, the adjusting frame 13 moves upward along the guide frame 8 and the sliding frame 12, thereby lifting the pusher plate 14 upward. This causes the adjusting frame 13 to continue moving. When it moves to the rightmost position, the adjusting frame 13 moves downward along the guide frame 8 and the sliding frame 12 to reset, thereby moving the pusher plate 14 downward to reset. Then, it continues to move to push the foam. The first reciprocating screw 11 rotates while pushing the foam, causing the third pulley to rotate, which in turn causes the third flat belt to rotate. Under the action of the screw, the moving frame 16 moves left and right, which in turn drives the scraper 15 to move left and right to scrape the paper or impurities that have settled on the air outlet 3. This allows the foam to be pushed while the settled paper or impurities are scraped during deinking, preventing some foam from being unable to be discharged and preventing the air outlet 3 from being blocked, thus improving the efficiency and quality of the process. It is easy to use. After demolding, the motor 4 and the bubble generator are turned off, and then the pulp can be further processed.
[0021] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A pulp deinking device for waste paper recycling, characterized in that, It includes a base (1), a flotation frame (2), a motor (4), a stirring rack (5), a first transmission assembly (6), a rotating rack (7), a foam scraping assembly, and an anti-clogging assembly. The flotation frame (2) is connected to the upper side of the base (1). Multiple air outlets (3) are opened on the base (1). The motor (4) is connected to the front of the flotation frame (2). The stirring rack (5) is connected to the output shaft of the motor (4). The stirring rack (5) is rotatably connected to the flotation frame (2). The rotating rack (7) is rotatably connected to the upper left of the flotation frame (2). The first transmission assembly (6) is provided between the rotating rack (7) and the stirring rack (5). A foam scraping assembly for pushing foam is provided between the flotation frame (2) and the stirring rack (5). An anti-clogging assembly for preventing the air outlets (3) from being blocked is provided between the flotation frame (2) and the foam scraping assembly. The skimming assembly includes a guide frame (8), a second transmission assembly (9), a bevel gear (10), a first reciprocating screw (11), a sliding frame (12), an adjusting frame (13), and a pusher plate (14). The guide frame (8) is connected to the upper front side of the flotation frame (2). The first reciprocating screw (11) is rotatably connected to the upper part of the flotation frame (2). The bevel gear (10) is connected to the right side of the first reciprocating screw (11). The bevel gear (10) is also rotatably connected to the upper right side of the flotation frame (2). The two bevel gears... The gears (10) mesh with each other. A second transmission assembly (9) is provided between the bevel gear (10) on the flotation frame (2) and the stirring rack (5). A sliding frame (12) is connected to the first reciprocating screw (11) by a thread. The flotation frame (2) and the guide frame (8) are both in contact with the sliding frame (12). An adjusting frame (13) is slidably connected to the sliding frame (12). The adjusting frame (13) is slidably connected to the guide frame (8). A pusher plate (14) is connected to the adjusting frame (13). The anti-clogging component includes a scraper (15), a moving frame (16), a second reciprocating screw (17), and a third transmission component (18). The moving frame (16) is slidably connected to the upper rear of the float frame (2). The scraper (15) is connected to the lower side of the moving frame (16). The scraper (15) contacts the base (1). The second reciprocating screw (17) is rotatably connected to the upper rear side of the float frame (2). The second reciprocating screw (17) is connected to the moving frame (16) by a thread. The third transmission component (18) is provided between the first reciprocating screw (11) and the second reciprocating screw (17).
2. The pulp deinking device for waste paper recycling according to claim 1, characterized in that, The first transmission assembly (6) includes a first pulley and a first flat belt. The front of the stirring frame (5) and the rotating frame (7) are both connected to the first pulley, and the first flat belt is wound between the first pulleys.
3. A pulp deinking device for waste paper recycling according to claim 1, characterized in that, The second transmission assembly (9) includes a second pulley and a second flat belt. The front part of the bevel gear (10) on the flotation frame (2) and the outer side of the front part of the stirring frame (5) are both connected to the second pulley, and the second flat belt is wound between the second pulleys.
4. A pulp deinking device for waste paper recycling according to claim 1, characterized in that, The third transmission assembly (18) includes a third pulley and a third flat belt. The third pulley is connected to the outer right side of both the first reciprocating screw (11) and the second reciprocating screw (17). The third flat belt is wound between the third pulleys.