A high-efficiency deinking device for recycled paper processing

Abstract

The invention relates to the technical field of waste paper treatment, and in particular to an efficient deinking device for recycled paper processing, comprising a barrel body, a side wall of the barrel body being provided with a feed port and a discharge port, the outer end of the feed port being sealed and fixedly connected with a first solenoid valve, the outer end of the discharge port being sealed and fixedly connected with a second solenoid valve, the center of the barrel body being sealed and rotatably connected with a hollow shaft, the upper end of the hollow shaft being provided with a flotation component, the outer side of the hollow shaft being provided with an aeration component transmission-connected thereto at a position near the bottom of the barrel body; the lower end of the hollow shaft being provided with a driving component passing through the bottom of the barrel body. The invention has a simple and ingenious structure, is convenient and quick to use, can more efficiently screen and separate ink particles from a waste paper solution on the basis of the prior art, is very suitable for the processing and production process of recycled paper, and has good application prospects and promotion value.

Description

Technical Field

[0001] The invention relates to the technical field of waste paper processing, and in particular to a high-efficiency deinking device for recycled paper processing. Background Art

[0002] When using printed waste paper to process white paper, deinking must be carried out during the degradation of the waste paper to remove the ink and pigment adhered to the fiber due to printing. This is because printing ink is mainly carbon black, pigment and some filler particles dispersed in adhesives. These particles adhere to the paper fibers through printing, and the role of deinking is to destroy the adhesion of these particles to the fibers. At present, chemicals are usually used to saponify and dissolve the above-mentioned adhesives under appropriate temperature and mechanical action to separate the ink and pigment from the fibers. Due to the use of high-alkalinity media in the chemical deinking process, cellulose fibers and lignocellulose turn yellow. Therefore, in order to obtain high-whiteness recycled paper fibers, bleaching agents are also needed in the deinking process.

[0003] Due to the presence of high alkalinity medium during the deinking process, the pulp fiber structure will change, resulting in poor performance of the produced paper such as strength. At the same time, the large-scale use of chemicals has an adverse effect on production equipment and the environment. Therefore, a Chinese patent with patent number CN110144748B discloses an industrial waste paper deinking device, including: a reactor and a stirring barrel; the reactor is a horizontally arranged tubular structure, and the vertical section of the reactor is a regular polygonal structure; the reactor includes: a plurality of ultrasonic vibration plates installed on the inner wall of the reactor, and a fan arranged in the reactor; the two ends of the tubular structure are respectively an air inlet and an exhaust port; the stirring barrel rotates relative to the reactor; there is a closed cavity between the stirring barrel and the reactor; and a plurality of stirring teeth are arranged on the inner wall of the stirring barrel.

[0004] The above invention arranges an ultrasonic vibration plate in a reactor, and utilizes the hollow structure of the reactor to enable the ultrasonic effect to act well near the inner wall of the stirring barrel. Through the dual effects of stirring and ultrasound, the waste paper is deinked by utilizing compressed water flow and ultrasonic cavitation, and has excellent deinking performance and efficient processing speed; however, after the equipment performs deinking treatment, the waste paper solution discharged through the guide pipe needs to be stationary for more than thirty minutes before the ink can be separated, and there are still a few inks that cannot be removed and need to be removed by special chemical reagents. It can be seen that this design has the disadvantages of low efficiency and poor effect in separating ink.

[0005] Therefore, how to efficiently and quickly screen and separate ink particles from waste paper solution has very important research significance and practical value for technical personnel in this field. Summary of the invention

[0006] In order to solve the problem of how to efficiently and quickly screen and separate ink particles from waste paper solution, the present invention provides a high-efficiency deinking device for recycled paper processing.

[0007] The technical solution of the present invention is:

[0008] The invention provides a high-efficiency deinking device for recycled paper processing, comprising a barrel body, a side wall of the barrel body is provided with a feed port and a discharge port, the outer end of the feed port is sealed and fixedly connected to a first solenoid valve, the outer end of the discharge port is sealed and fixedly connected to a second solenoid valve, the center of the barrel body is sealed and rotatably connected to a hollow shaft, the upper end of the hollow shaft is provided with a flotation component, the outer side of the hollow shaft near the bottom of the barrel body is provided with an aeration component transmission-connected thereto; the lower end of the hollow shaft is provided with a driving component passing through the bottom of the barrel body, the driving component can drive the hollow shaft to rotate, and after the hollow shaft rotates, it drives the aeration component to generate bubbles, and when the bubbles automatically float up in the waste paper solution, they will carry the ink in the waste paper solution to the upper surface of the waste paper solution, and the flotation component will screen and separate the ink carried by the bubbles when they float up.

[0009] Furthermore, the driving assembly includes a power device, which is an electric motor. The output shaft of the power device is connected to the hollow shaft through a transmission assembly, and the transmission assembly adopts gear transmission.

[0010] Furthermore, the aeration assembly includes an air cylinder, and several annularly evenly distributed air cylinders are fixedly installed on the bottom surface of the barrel body. The internal sealing sliding connection of the air cylinder is connected to a piston, one end of the piston is fixedly connected to a spring, the other end of the spring is fixedly connected to the inner end surface of the air cylinder, and the other end of the piston is fixedly connected to a piston rod, the piston rod faces the outside of the hollow shaft, the outside of the hollow shaft is fixedly connected to an eccentric disk, and the outer side surface of the eccentric disk corresponds to the inner end of the piston rod.

[0011] Furthermore, the outer end of the air cylinder is fixedly and sealedly connected to a one-way air inlet valve, the outer end of the one-way air inlet valve passes through the side wall of the barrel body and is connected to the outside, the outer side of the air cylinder is facing upward and sealed and fixedly connected to a one-way exhaust valve near its outer end, the outer end of the one-way exhaust valve is sealed and fixedly connected to an air collecting box, the outer side surface of the air collecting box is fixedly and sealedly connected to the inner side surface of the barrel body, the upper end surface of the air collecting box is sealed and fixedly connected to an aeration plate, and the surface of the aeration plate is provided with densely distributed aeration holes.

[0012] Furthermore, the flotation assembly includes a vertical tube, the upper end of the hollow shaft extends into the interior of the barrel body, the vertical tube is axially slidably connected to the upper end of the hollow shaft, the upper end of the vertical tube is fixedly sealed and connected to a scraper, the upper end surface of the scraper is sealed and fixedly connected to a cover plate, and the outer side surface of the scraper is sealed and rotatably connected to the inner side surface of the barrel body.

[0013] Furthermore, the scraper disc is designed to be arc-shaped as a whole, and the lower side of the scraper disc is provided with a plurality of evenly distributed annular through grooves along its radial direction, and the interior of the through grooves is fixedly connected with an obliquely arranged scraper plate, and drainage grooves are provided next to the through grooves corresponding to the upper end surfaces of the scraper disc, and the inner ends of the drainage grooves are connected to the ends of the vertical pipes.

[0014] Furthermore, the lower end of the hollow shaft is sealed and rotatably connected to a collecting pipe, the outer end of the collecting pipe is sealed and fixedly connected to a third solenoid valve, the outer end of the third solenoid valve is sealed and fixedly connected to a discharge pipe, and the outer end of the discharge pipe passes through the side wall of the box to an external recovery container.

[0015] Furthermore, the bottom of the barrel is fixedly connected with a box body, the box body is fixedly installed on the top of the base, and the power device is fixedly installed inside the box body.

[0016] Furthermore, the inner end of the piston rod is provided with a pressure block hingedly connected thereto.

[0017] Furthermore, a fixedly connected conical block is provided at the connection between the scraper disc and the vertical pipe, and the conical block is made of a foam material with a relatively light texture.

[0018] The beneficial effects achieved by the present invention are:

[0019] When the present invention is in use, the outer end of the first solenoid valve can be connected to the guide pipe of the industrial waste paper deinking equipment, or the container containing pulp solution and chemical deinking agent can be directly connected to the outer end of the first solenoid valve. When the first solenoid valve is opened, the waste paper solution can enter the interior of the barrel body, and then the power device is started. The power device will drive the hollow shaft to rotate through the transmission component. After the hollow shaft rotates, the eccentric disk will rotate accordingly. When the eccentric disk rotates, it will press the corresponding pressure block, and the pressure block will push the corresponding piston rod and piston. The piston will squeeze the spring and also discharge the air inside the cavity where the spring is located to the inside of the air collecting box through the one-way exhaust valve. The air inside the air collecting box will be transported to the waste paper solution in the form of bubbles through the aeration holes on the surface of the aeration plate. When the bubbles automatically float up in the waste paper solution, the ink in the waste paper solution will be attached to the upper surface of the waste paper solution. A large number of bubbles are generated inside the barrel body, which not only It can separate ink from the waste paper solution and increase the pressure inside the barrel. The pressure inside the barrel will push the vertical pipe and the scraper upward as a whole, so that the scraper is temporarily away from the surface of the waste paper solution until the bubbles separate the ink from the waste paper solution, and then open the third solenoid valve. After the third solenoid valve is opened, the pressure inside the barrel will be released through the scraper, the vertical pipe, the hollow shaft, the collecting pipe, the third solenoid valve and the discharge pipe. After the pressure is released, the vertical pipe and the scraper will slide downward as a whole. At the same time, the vertical pipe will be driven to rotate synchronously with the rotation of the hollow shaft. The vertical pipe will drive the scraper to rotate when it rotates. As the scraper rotates, the scraper will also rotate accordingly. When the scraper approaches the foam, the foam will be scraped up as the scraper rotates. The foam moves upward along the scraper and enters the drainage groove. Finally, it enters the vertical pipe through the drainage groove. The ink entering the vertical pipe will be discharged from the discharge pipe through the hollow shaft, the collecting pipe and the third solenoid valve.

[0020] In summary, the present invention has a simple and ingenious structure, is easy and quick to use, and can more efficiently screen and separate ink particles from waste paper solution on the basis of the existing technology. It is very suitable for the processing and production process of recycled paper and has good application prospects and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 yes Figure 1 The enlarged schematic diagram of the structure of Part I;

[0023] Figure 3 yes Figure 1 AA-direction cross-sectional structural diagram;

[0024] Figure 4 yes Figure 1 The enlarged schematic diagram of the structure of Part II;

[0025] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure along the BB axis. DETAILED DESCRIPTION

[0026] To facilitate those skilled in the art to understand the present invention, specific implementations of the present invention are described below with reference to the accompanying drawings.

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0031] like Figures 1 to 4As shown, the present invention provides a high-efficiency deinking device for recycled paper processing, comprising a base 1, a box body 2 fixedly connected to the top of the base 1 is provided, a barrel body 3 fixedly connected to the top of the box body 2 is provided, a barrel cover 4 sealed and fixedly connected to the top of the barrel body 3 is provided, a feed port 5 and a discharge port 6 are provided on the side wall of the barrel body 3, a first solenoid valve 7 sealed and fixedly connected to the outer end of the feed port 5 is provided, and a second solenoid valve 8 sealed and fixedly connected to the outer end of the discharge port 6 is provided; during use, the outer end of the first solenoid valve 7 is connected to a guide pipe of an industrial waste paper deinking equipment disclosed in a Chinese patent with patent number CN110144748B, when the first solenoid valve 7 is opened, the waste paper solution discharged from the guide pipe can enter the interior of the barrel body 3 for ink separation, and after the ink is separated, the second solenoid valve 8 is opened, and the solution separated from the ink can be discharged from the discharge port 6.

[0032] like Figure 1 As shown, a hollow shaft 9 is provided at the center of the barrel body 3 and is rotatably connected thereto in a sealed manner. The lower end of the hollow shaft 9 passes through the barrel body 3 and the side walls of the box body 2. A power device 10 is fixedly installed inside the box body 2. The power device 10 can be an electric motor or an engine. In this embodiment, an electric motor is preferably used. The output shaft of the power device 10 is connected to the hollow shaft 9 through a transmission component 11. The transmission component 11 can be a gear transmission, a chain transmission, a belt transmission, etc. In this embodiment, a gear transmission is preferably used. An aeration component is provided on the outer side of the hollow shaft 9 near the bottom of the barrel body 3 and is connected thereto in a transmission manner. During use, the power device 10 is started, and the power device 10 drives the hollow shaft 9 to rotate through the transmission component 11. After the hollow shaft 9 rotates, the aeration component is driven to work. After the aeration component works, a large number of bubbles are generated. The bubbles will automatically float in the waste paper solution and attach the ink in the waste paper solution to the upper surface of the waste paper solution. Compared with the static separation method in the prior art, this design effectively improves the efficiency of separating ink from the waste paper solution.

[0033] like Figures 1 to 3As shown, the aeration assembly includes an air cylinder 12, and a plurality of annularly evenly distributed air cylinders 12 are fixedly installed on the bottom surface of the barrel body 3. The interior of the air cylinder 12 is provided with a piston 13 which is sealed and slidably connected thereto. The outer end of the piston 13 facing the air cylinder 12 is provided with a spring 14 which is fixedly connected to the end thereof. The other end of the spring 14 is fixedly connected to the inner end surface of the air cylinder 12. The outer end of the piston 13 facing the air cylinder 12 is provided with a piston rod 15 which is fixedly connected to the end thereof. The inner end of the piston rod 15 faces the outer side of the hollow shaft 9. The inner end of the piston rod 15 is provided with a pressure block 16 which is hingedly connected thereto. The outer end of the air cylinder 12 is provided with a one-way air inlet valve which is fixedly and sealedly connected thereto. 17, the outer end of the one-way air inlet valve 17 passes through the side wall of the barrel body 3 and is connected to the outside, the outer side of the air cylinder 12 is upward and close to its outer end, and a one-way exhaust valve 18 is provided, which is sealed and fixedly connected to it. The outer end of the one-way exhaust valve 18 is provided with an air collecting box 19, which is sealed and fixedly connected to it. The outer side surface of the air collecting box 19 is fixedly sealed and connected to the inner side surface of the barrel body 3. The upper end surface of the air collecting box 19 is provided with an aeration plate 20, which is sealed and fixedly connected to it. The surface of the aeration plate 20 is provided with dense aeration holes 21. The outer side of the hollow shaft 9 is fixedly connected with an eccentric disk 22, and the outer side surface of the eccentric disk 22 corresponds to the top contact with the pressing block 16 at the inner end of the piston rod 15;

[0034] During use, after the hollow shaft 9 rotates, the eccentric disk 22 will rotate accordingly. When the eccentric disk 22 rotates, it will press the corresponding pressure block 16. The pressure block 16 will push the corresponding piston rod 15 and the piston 13. The piston 13 will squeeze the spring 14, and at the same time, the air inside the cavity where the spring 14 is located will be discharged to the inside of the air collecting box 19 through the one-way exhaust valve 18. The air inside the air collecting box 19 will pass through the aeration holes 21 on the surface of the aeration plate 20. The air is transported to the waste paper solution in the form of bubbles. When the bubbles automatically float up in the waste paper solution, the ink in the waste paper solution will be attached to the waste paper solution. At the same time, when the eccentric disk 22 does not press the pressure block 16, the spring 14 will push the piston 13 in the reverse direction so that the pressure block 16 is always pressed against the outer side of the eccentric disk 22, thereby increasing the stability of the eccentric disk 22 during operation, and when the spring 14 pushes the piston 13 in the reverse direction, the external air will be pumped into the cavity where the spring 14 is located through the one-way air inlet valve 17, thereby ensuring the repeatability of the aeration component during operation. The design structure is simple and ingenious, which increases the stability of the aeration component during operation and ensures the feasibility of the aeration component during operation.

[0035] like Figure 1As shown, the upper end of the hollow shaft 9 extends out to the interior of the barrel body 3, and a vertical pipe 23 is provided inside the upper end of the hollow shaft 9 for axial sliding connection therewith, and a scraper 24 is provided at the upper end of the vertical pipe 23 for fixed and sealed communication therewith, and the outer side surface of the scraper 24 is sealed and rotatably connected to the inner side surface of the barrel body 3, and the lower end of the hollow shaft 9 is located inside the box body 2 and is provided with a collecting pipe 25 for sealed and rotatable connection therewith, and a third solenoid valve 26 is provided at the outer end of the collecting pipe 25 for sealed and fixed connection therewith, and a discharge pipe 27 is provided at the outer end of the third solenoid valve 26 for sealed and fixed communication therewith, and the outer end of the discharge pipe 27 passes through the side wall of the box body 2 to the external recovery container; during use, the third solenoid valve 26 is first closed, and then the power device is controlled to drive the hollow shaft 9 to rotate, and when the hollow shaft 9 rotates, it will drive the aeration component to work, and a large number of bubbles will be generated after the aeration component works, and a large number of bubbles generated inside the barrel body 3 can not only separate ink from the waste paper solution, but also increase the pressure inside the barrel body 3, such as Figure 1 As shown, the pressure inside the barrel body 3 will push the vertical tube 23 and the scraper 24 upward as a whole, so that the scraper 24 is temporarily away from the surface of the waste paper solution until the bubbles separate the ink from the waste paper solution, and then the third solenoid valve 26 is opened. After the third solenoid valve 26 is opened, the pressure inside the barrel body 3 will be released through the scraper 24, the vertical tube 23, the hollow shaft 9, the collecting tube 25, the third solenoid valve 26 and the discharge tube 27. After the pressure is released, the vertical tube 23 and the scraper 24 will slide downward as a whole, and at the same time, as the hollow shaft 9 rotates, the vertical tube 23 will be driven to rotate synchronously. When the vertical tube 23 rotates, the scraper 24 will be driven to rotate. When the scraper 24 rotates, the ink floating on the surface of the solution will be scraped off, and the ink entering the scraper 24 will be discharged from the vertical tube 23, the hollow shaft 9, the collecting tube 25, the third solenoid valve 26 and the discharge tube 27. This design not only ensures the effect of separating the ink, but also further improves the efficiency of separating the ink.

[0036] like Figure 1 , 4 As shown in Figures 5 and 6, the scraper 24 is designed in an arc shape with a lower middle and higher sides. The lower side of the scraper 24 is provided with a plurality of evenly distributed annular through grooves 28 along its radial direction. The inside of the through groove 14 is fixedly connected with a scraper 29 arranged obliquely. A drainage groove 30 is provided on the upper end surface of the scraper 24 next to the through groove 28. The inner ends of the drainage grooves 30 are connected with the ends of the vertical pipe 23. The upper end surface of the scraper 24 is provided with a cover plate 31 sealed and fixedly connected thereto. The connection between the scraper 24 and the vertical pipe 23 is provided with a fixedly connected conical block 32. The conical block 32 is made of a lighter material, such as foam. The conical block 32 can not only increase the connection strength between the scraper 24 and the vertical pipe 23, but also increase the buoyancy of the vertical pipe 23 and the scraper 24 as a whole, and can also discharge the floating foam near the vertical pipe 23, so as to ensure that the scraper 29 scrapes away the floating foam with ink without dead angles. Figure 5As shown, during use, as the scraper disc 24 rotates, the scraper 29 will also rotate. When the scraper 29 is close to the foam, the foam will be scraped up as the scraper 29 rotates. The foam moves upward along the scraper and enters the drainage groove 30, and finally enters the vertical pipe 23 through the drainage groove. The ink entering the vertical pipe 23 will be discharged from the discharge pipe 27 through the hollow shaft 9, the collecting pipe 25, and the third solenoid valve 26.

[0037] In summary, when the present invention is used, the outer end of the first solenoid valve 7 can be connected to the guide pipe of the industrial waste paper deinking equipment, or the container containing the pulp solution and the chemical deinking agent can be directly connected to the outer end of the first solenoid valve 7. When the first solenoid valve 7 is opened, the waste paper solution can enter the interior of the barrel 3, and then the power device 10 is started. The power device 10 drives the hollow shaft 9 to rotate through the transmission component 11. When the hollow shaft 9 rotates, the eccentric disk 22 will rotate accordingly, and the eccentric disk 22 will press the corresponding pressing block 1 when it rotates. 6, the pressing block 16 will push the corresponding piston rod 15 and the piston 13, the piston 13 will squeeze the spring 14, and at the same time, the air in the cavity where the spring 14 is located will be discharged to the inside of the air collecting box 19 through the one-way exhaust valve 18, and the air in the air collecting box 19 will be transported to the waste paper solution in the form of bubbles through the aeration holes 21 on the surface of the aeration plate 20. When the bubbles automatically float up in the waste paper solution, the ink in the waste paper solution will be attached to the upper surface of the waste paper solution. A large number of bubbles generated inside the barrel 3 can not only remove the waste paper from the waste paper solution, but also remove the ink from the waste paper solution. The separation of ink from the solution will also increase the pressure inside the barrel 3. The pressure inside the barrel 3 will push the vertical pipe 23 and the scraper 24 upward as a whole, so that the scraper 24 is temporarily away from the surface of the waste paper solution until the bubbles separate the ink from the waste paper solution, and then open the third solenoid valve 26. After the third solenoid valve 26 is opened, the pressure inside the barrel 3 will be released through the scraper 24, the vertical pipe 23, the hollow shaft 9, the collecting pipe 25, the third solenoid valve 26 and the discharge pipe 27. After the pressure is released, the vertical pipe 23 and the scraper 24 are pushed upward as a whole, so that the scraper 24 is temporarily away from the surface of the waste paper solution. 4 will slide downward as a whole, and at the same time, the vertical pipe 23 will be driven to rotate synchronously with the rotation of the hollow shaft 9, and the vertical pipe 23 will be driven to rotate when the scraper 24 rotates. With the rotation of the scraper 24, the scraper 29 will also rotate accordingly. When the scraper 29 is close to the floating foam, the floating foam will be scraped up with the rotation of the scraper 29. The floating foam will move upward along the scraper and enter the drainage groove 30, and finally enter the interior of the vertical pipe 23 through the drainage groove. The ink entering the interior of the vertical pipe 23 will be discharged from the discharge pipe 27 through the hollow shaft 9, the collecting pipe 25, and the third electromagnetic valve 26.

[0038] In summary, the present invention has a simple and ingenious structure, is easy and quick to use, and can more efficiently screen and separate ink particles from waste paper solution on the basis of the existing technology. It is very suitable for the processing and production process of recycled paper and has good application prospects and promotion value.

[0039] The above-described embodiments of the present invention do not constitute a limitation on the protection scope of the present invention. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An efficient deinking device for recycled paper processing, characterized in that: The invention comprises a barrel body (3), wherein a feed port (5) and a discharge port (6) are provided on a side wall of the barrel body (3), the outer end of the feed port (5) is sealed and fixedly connected to a first electromagnetic valve (7), the outer end of the discharge port (6) is sealed and fixedly connected to a second electromagnetic valve (8), the center of the barrel body (3) is sealed and rotatably connected to a hollow shaft (9), the upper end of the hollow shaft (9) is provided with a flotation component, and the outer side of the hollow shaft (9) near the bottom of the barrel body (3) is provided with an aeration component that is transmission-connected thereto; the lower end of the hollow shaft (9) passes through the bottom of the barrel body (3) and is provided with a driving component, the driving component can drive the hollow shaft (9) to rotate, and after the hollow shaft (9) rotates, it drives the aeration component to generate bubbles, and when the bubbles automatically float up in the waste paper solution, they will carry the ink in the waste paper solution to the upper surface of the waste paper solution, and the flotation component will screen and separate the ink that is carried by the bubbles when they float up; The flotation assembly comprises a vertical tube (23), the upper end of the hollow shaft (9) extends into the interior of the barrel body (3), the vertical tube (23) is axially slidably connected to the interior of the upper end of the hollow shaft (9), the upper end of the vertical tube (23) is fixedly and sealedly connected to a scraper (24), the upper end surface of the scraper (24) is sealedly and fixedly connected to a cover plate (31), and the outer side surface of the scraper (24) is sealed and rotatably connected to the inner side surface of the barrel body (3); The scraper (24) is designed to be arc-shaped as a whole. The lower side of the scraper (24) is provided with a plurality of annular through grooves (28) evenly distributed along its radial direction. The inside of the through groove (14) is fixedly connected with a scraper plate (29) arranged obliquely. A drainage groove (30) is provided on the upper end surface of the scraper (24) next to the through groove (28). The inner end of the drainage groove (30) is communicated with the end of the vertical pipe (23).

2. The high-efficiency deinking device for recycled paper processing according to claim 1, characterized in that: The driving assembly comprises a power device (10), the power device (10) is an electric motor, the output shaft of the power device (10) is connected to the hollow shaft (9) via a transmission assembly (11), and the transmission assembly (11) adopts gear transmission.

3. The high-efficiency deinking device for recycled paper processing according to claim 1, characterized in that: The aeration assembly comprises an air cylinder (12), wherein a plurality of air cylinders (12) are evenly distributed in an annular shape and fixedly mounted on the bottom surface of the barrel body (3), wherein the interior of the air cylinder (12) is sealingly and slidably connected to a piston (13), wherein one end of the piston (13) is fixedly connected to a spring (14), wherein the other end of the spring (14) is fixedly connected to the inner end surface of the air cylinder (12), wherein the other end of the piston (13) is fixedly connected to a piston rod (15), wherein the piston rod (15) faces the outside of the hollow shaft (9), wherein the outside of the hollow shaft (9) is fixedly connected to an eccentric disk (22), wherein the outer side surface of the eccentric disk (22) is correspondingly in contact with the inner end of the piston rod (15).

4. The high-efficiency deinking device for recycled paper processing according to claim 3, characterized in that: The outer end of the air cylinder (12) is fixedly and sealedly connected to a one-way air inlet valve (17), the outer end of the one-way air inlet valve (17) passes through the side wall of the barrel body (3) and is connected to the outside, the outer side of the air cylinder (12) is facing upward and is sealed and fixedly connected to a one-way exhaust valve (18) near its outer end, the outer end of the one-way exhaust valve (18) is sealed and fixedly connected to an air collecting box (19), the outer side surface of the air collecting box (19) is fixedly and sealedly connected to the inner side surface of the barrel body (3), the upper end surface of the air collecting box (19) is sealed and fixedly connected to an aeration plate (20), and the surface of the aeration plate (20) is provided with densely distributed aeration holes (21).

5. The high-efficiency deinking device for recycled paper processing according to claim 1, characterized in that: The lower end of the hollow shaft (9) is rotatably connected to a collecting pipe (25), the outer end of the collecting pipe (25) is fixedly connected to a third solenoid valve (26), the outer end of the third solenoid valve (26) is fixedly connected to a discharge pipe (27), and the outer end of the discharge pipe (27) passes through the side wall of the box body (2) and leads to an external recovery container.

6. The high-efficiency deinking device for recycled paper processing according to claim 2, characterized in that: The bottom of the barrel body (3) is fixedly connected to a box body (2), the box body (2) is fixedly mounted on the top of the base (1), and the power device (10) is fixedly mounted inside the box body (2).

7. The high-efficiency deinking device for recycled paper processing according to claim 3, characterized in that: The inner end of the piston rod (15) is provided with a pressure block (16) hingedly connected thereto.

8. The high-efficiency deinking device for recycled paper processing according to claim 3, characterized in that: A fixedly connected conical block (32) is provided at the connection between the scraper plate (24) and the vertical pipe (23), and the conical block (32) is made of a foam material with a relatively light texture.

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