A device for treating tailings in a papermaking process

Abstract

The present application belongs to the technical field of tailings treatment in the papermaking process, and particularly discloses a tailings treatment device in the papermaking process, which comprises a crushing device, wherein the crushing device further comprises a crushing disc, an outer guard plate B is fixedly installed on the crushing disc, an outer guard plate A is fixedly installed on the upper side of the outer guard plate B, a cylinder mounting device is fixedly installed inside the outer guard plate A and the outer guard plate B, a crushing knife device is fixedly installed inside the cylinder mounting device, and a tailings collection fence is fixedly installed on the upper end surface of the cylinder mounting device. Through the setting of the crushing device, the metal and non-metal separation device, the separation device and the suspension tailings collection device, the present application realizes accurate and efficient screening of each component in the papermaking tailings treatment process. The modular design of the present application enables the equipment to flexibly cope with different treatment requirements. Whether it is large-batch or small-batch tailings treatment, each module can be freely combined according to the specific situation, so as to ensure that the screening process is both efficient and flexible.

Description

Technical Field

[0001] This invention relates to the field of tailings treatment technology in the papermaking process, specifically to a tailings treatment device in the papermaking process. Background Technology

[0002] With the continuous development of the global economy, the paper industry, as a traditional industry, faces numerous challenges while its production scale continues to expand, one of which is the issue of waste disposal. Waste generated during the papermaking process, including heavy waste, pulp foam, and other impurities, not only increases treatment costs but also poses a potential threat to the environment. Therefore, developing efficient and environmentally friendly waste disposal equipment and methods has become an important issue that the paper industry urgently needs to address.

[0003] In the papermaking process, raw materials undergo a series of processes including crushing, cooking, washing, bleaching, and pulping to form a large amount of pulp. However, pulp often contains impurities such as incompletely separated fibers, fillers, chemical residues, heavy residues, and foam. If these impurities are not treated in a timely manner, they will not only affect the quality of the final product but also increase the difficulty and cost of subsequent processing steps. In addition, if the harmful substances in the tailings are not properly treated, they may also pose a threat to the environment and human health. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a tailings treatment device for the papermaking process, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tailings treatment device for papermaking process, comprising a crushing device, the crushing device further comprising a crushing disc, an outer protective plate B fixedly installed on the crushing disc, an outer protective plate A fixedly installed on the upper side of the outer protective plate B, a cylinder mounting device fixedly installed inside the outer protective plate A and the outer protective plate B, a crushing blade device fixedly installed inside the cylinder mounting device, a tailings collection rail fixedly installed on the upper end face of the cylinder mounting device, and a tailings extraction port reserved on one side of the outer protective plate B;

[0006] The cylinder mounting device has several cylinder mounting positions inside, and a cylinder is fixedly installed in any of the cylinder mounting positions. One end of a connecting rod is fixedly installed on the lower end face of the cylinder, and one end of a cutter head mounting device is fixedly installed on the other end of the connecting rod. A cutter head is fixedly installed on the other end of the cutter head mounting device.

[0007] One working end of a metal-nonmetal separation device is fixedly installed on one side of the crushing device, and one end of a separation device is provided at the other working end of the metal-nonmetal separation device. A suspended tailings collection device is provided at the other end of the separation device.

[0008] As a preferred embodiment of the present invention, a cylinder mounting plate is fixedly installed on the upper end face of the cylinder, and the cylinder mounting plate is also fixedly connected to the cylinder mounting device.

[0009] In a preferred embodiment of the present invention, the crushing disc includes a connecting disc, a shock-absorbing disc is fixedly installed on the upper side of the connecting disc, a crushing contact disc is fixedly installed on the upper side of the shock-absorbing disc, a slag-lifting device is fixedly installed on the upper end of the crushing contact disc, a slag-guiding disc is fixedly installed at the center of the slag-lifting device, a gear mounting seat is fixedly installed on the lower side of the connecting disc, the crushing contact disc is fixedly installed with a mounting shaft, and a worm gear is fixedly connected to the mounting shaft after passing through the connecting disc and the gear mounting seat. The worm gear and the worm are mechanically connected.

[0010] As a preferred embodiment of the present invention, the metal-nonmetal separation device includes a slag extraction pipe fixedly connected to a slag extraction port reserved on one side of the outer protective plate B. A conveying device bracket is fixedly installed at the other end of the slag extraction pipe. A slag extraction fan is also fixedly installed inside the slag extraction pipe. Several conveyor belt support rollers are fixedly installed inside the conveying device bracket. A conveyor belt is movably installed on the outside of the several conveyor belt support rollers. Electromagnetic electrodes are fixedly installed on both sides of the conveyor belt. A power supply device A is fixedly installed on any longer side of the conveying device bracket. The power supply device A penetrates the outer wall of the conveying device bracket and contacts the electromagnetic electrode. Power devices are fixedly installed on both sides of the conveying device bracket. The power devices are fixedly installed with power rollers. A waste metal frame is provided on the side of the conveying device bracket closest to the power device. Power supply devices B are fixedly installed on both sides of the conveying device bracket inside the conveying device bracket closest to the power device.

[0011] As a preferred embodiment of the present invention, the separation device includes a separation box, a wave-making device is fixedly installed on the side of the separation box near the metal-non-metal separation device, a sedimentation tailings collection device is fixedly installed inside the separation box, and the wave-making device includes a hydraulic thrust cylinder fixedly connected to the separation box, with a pusher plate fixedly installed at one end of the hydraulic thrust cylinder.

[0012] As a preferred embodiment of the present invention, the sedimentation tailings collection device includes several thrust cylinders fixedly connected to the separation box. Each thrust cylinder is fitted with a push rod. A crossbeam is fixedly connected between two push rods that are far apart. One end of several traction steel wire ropes is also fixedly connected to the lower end of the crossbeam. A screening plate is fixedly installed at the other end of the traction steel wire ropes.

[0013] As a preferred embodiment of the present invention, the suspended tailings collection device further includes a support frame, on the upper surface of which two power units are fixedly installed, and a discharge plate is fixedly installed between the two power units.

[0014] As a preferred embodiment of the present invention, crank connecting shafts are fixedly installed on both sides of the discharge plate, one end of a crank is sleeved on the crank connecting shaft, and the other end of the crank is fixedly connected to the power device.

[0015] As a preferred embodiment of the present invention, a slag-hanging plate is provided on one side of the discharge plate and a drain plate is provided on the other side.

[0016] As a preferred embodiment of the present invention, the slag-hanging plate is provided with a drainage groove, and a slag-hanging barb is provided between the two drainage grooves.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This invention, through the installation of a crushing device, a metal-non-metal separation device, a separation device, and a suspended tailings collection device, achieves precise and efficient screening of various components during the papermaking tailings treatment process. Its modular design allows the equipment to flexibly adapt to different processing needs. Whether processing large or small batches of tailings, the modules can be freely combined according to specific circumstances, ensuring that the screening process is both efficient and flexible.

[0019] 2. This invention, by setting a crushing blade device inside the crushing device, can quickly destroy the tailings by rapidly moving the blade head up and down when crushing them, and the cylinder driving method ensures the stability and reliability of the entire equipment when running at high speed.

[0020] 3. This invention, by setting a wave-generating device in the separation device, allows the suspended crushed tailings on the upper layer of the separation device to drift to the suspended tailings collection device in the form of waves. By using this method to collect the upper layer of suspended tailings, the suspended tailings can be collected to the maximum extent while saving the most resources.

[0021] 4. This invention significantly improves the convenience of tailings collection and treatment by setting up a suspended tailings collection device. Specifically, the device can effectively capture suspended tailings while ensuring that operators can more easily and efficiently remove the tailings from the separation device when cleaning them, thereby simplifying the maintenance process and improving overall work efficiency. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2 This is an exploded view of the crushing device;

[0024] Figure 3 A schematic diagram of the cylinder mounting device and the crushing blade device;

[0025] Figure 4This is a schematic diagram of the crushing blade device;

[0026] Figure 5 Figure 3 Enlarged view at point A;

[0027] Figure 6 This is a schematic diagram of a crushing disc;

[0028] Figure 7 This is a schematic diagram of a crushing disc;

[0029] Figure 8 This is a schematic diagram of a crushing disc;

[0030] Figure 9 This is a schematic diagram of the separation device;

[0031] Figure 10 This is a schematic diagram of the separation device;

[0032] Figure 11 for Figure 10 BB-direction sectional view;

[0033] Figure 12 This is a schematic diagram of a wave-generating device;

[0034] Figure 13 This is a schematic diagram of a sedimentation tailings collection device;

[0035] Figure 14 This is a schematic diagram of a suspended tailings collection device;

[0036] Figure 15 for Figure 14 Enlarged view at point B;

[0037] Figure 16 This is a schematic diagram of a metal-nonmetal separation device;

[0038] Figure 17 This is a schematic diagram of a metal-nonmetal separation device;

[0039] Figure 18 This is a schematic diagram of a suspended tailings collection and separation device.

[0040] In the picture:

[0041] Suspended tailings collection device; 13. Drainage plate; 14. Support frame;

[0042] 11. Power unit; 111. Crank; 112. Crank connecting shaft;

[0043] 12. Slag-hanging plate; 121. Slag-hanging barbs; 122. Drainage ditch;

[0044] 2. Separation device; 21. Separation box;

[0045] 22. Settling tailings collection device; 221. Push rod; 222. Crossbeam; 223. Traction wire rope; 224. Screening plate; 225. Thrust cylinder;

[0046] 23. Wave-making device; 231. Water-pushing plate; 232. Hydraulic thrust cylinder;

[0047] 3. Metal-nonmetal separation device; 31. Power unit; 32. Conveying device support; 33. Power supply device A; 34. Slag extraction fan; 35. Slag extraction pipeline; 36. Waste metal frame; 37. Power supply device B; 38. Electromagnet electrode; 39. Conveyor belt;

[0048] 4. Crushing device; 41. Tailings collection bin; 42. Outer protective plate A; 43. Cylinder mounting device; 45. Outer protective plate B;

[0049] 44. Crushing blade assembly; 442. Connecting rod; 443. Cutter head mounting device; 444. Cutter head;

[0050] 441, Cylinder; 4411, Cylinder mounting plate;

[0051] 46. ​​Crushing disc; 461. Slag lifting device; 462. Connecting disc; 463. Worm gear; 464. Slag guide disc; 465. Shock damping disc; 466. Crushing contact disc; 467. Gear mounting base; 468. Worm gear; 469. Mounting shaft. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. Example

[0053] Please see Figure 1-18 The present invention provides the following technical solution: a tailings treatment device in the papermaking process, including a crushing device 4, the crushing device 4 further including a crushing disc 46, an outer protective plate B45 fixedly installed on the crushing disc 46, an outer protective plate A42 fixedly installed on the upper side of the outer protective plate B45, a cylinder mounting device 43 fixedly installed inside the outer protective plate A42 and the outer protective plate B45, a crushing knife device 44 fixedly installed inside the cylinder mounting device 43, a tailings collection rail 41 fixedly installed on the upper end face of the cylinder mounting device 43, and a slag extraction port reserved on one side of the outer protective plate B45;

[0054] The cylinder mounting device 43 has several cylinder mounting positions inside. A cylinder 441 is fixedly installed in any cylinder mounting position. One end of a connecting rod 442 is fixedly installed on the lower end face of the cylinder 441. One end of a cutter head mounting device 443 is fixedly installed on the other end of the connecting rod 442. A cutter head 444 is fixedly installed on the other end of the cutter head mounting device 443.

[0055] One working end of the metal-nonmetal separation device 3 is fixedly installed on one side of the crushing device 4, and one end of the separation device 2 is set at the other working end of the metal-nonmetal separation device 3. The other end of the separation device 2 is equipped with a suspended tailings collection device 1.

[0056] In this embodiment, the crushing disc 46 is connected to the outer protective plate B45 by bolts. The outer protective plate B45 is sleeved on the outside of the cylinder mounting device 43. The main function of the outer protective plate B45 is to prevent tailings from splashing during crushing and to make the overall mechanical structure aesthetically pleasing. The outer protective plate B45 is connected to the outer protective plate A42 by bolts. The outer protective plate A42 is also connected to the cylinder mounting device 43 by bolts. The main function of the outer protective plate A42 is to fix the position of the cylinder mounting position 43. The cylinder mounting device 43 is connected to the crushing blade device 44 by bolts. The main function of the cylinder mounting device 43 is to fix the position of the crushing blade device 44 and to prevent the crushing blade device 44 from shifting or being damaged during operation. The connection between the mounting position 43 and the tailings collection bar 41 is welded. The main function of the tailings collection bar 41 is to facilitate the addition of tailings to the crushing device 4. The slag extraction port reserved on the outer protective plate B45 is for connecting the metal and non-metal separation device 3. The cylinder mounting position 43 is a cylinder with an internal opening. There are 64 cylinder mounting positions on the cylinder mounting device 43. Every two cylinder mounting positions form a group. The cylinder 411 is installed in the cylinder mounting position by bolts and slots. Similarly, two cylinders 411 form a group. Each group of cylinders 411 has a connecting rod 442 threaded on the lower side. The other end of the connecting rod 442 is also threaded to one end of the cutter head mounting device 443. One end of the cutter head mounting device 443 holds the cutter head 444.

[0057] Specifically, a cylinder mounting plate 4411 is fixedly installed on the upper end face of the cylinder 441, and the cylinder mounting plate 4411 is also fixedly connected to the cylinder mounting device 43.

[0058] In this embodiment, the cylinder 411 is connected to the cylinder mounting plate 4411 by welding, and the cylinder mounting plate 4411 is connected to the upper end face of the cylinder mounting position 43 by bolts.

[0059] Specifically, the crushing disc 46 includes a connecting disc 462, a shock-absorbing disc 465 fixedly installed on the upper side of the connecting disc 462, a crushing contact disc 466 fixedly installed on the upper side of the shock-absorbing disc 465, a slag-lifting device 461 fixedly installed at the upper end of the crushing contact disc 466, a slag-guiding disc 464 fixedly installed at the center of the slag-lifting device 461, a gear mounting seat 467 fixedly installed on the lower side of the connecting disc 462, the crushing contact disc 466 fixedly installed with the mounting shaft 469, the mounting shaft 469 passes through the connecting disc 462 and the gear mounting seat 467 and is fixedly connected to a worm gear 468, and the worm gear 468 is mechanically connected to the worm 463.

[0060] In this embodiment, the connection between the connecting plate 462 and the damping plate 465 is bolted, and the connection between the damping plate 465 and the crushing contact plate 466 is bolted. A slag lifting device 461 is bolted to the crushing contact plate 466. The main function of the slag lifting device 461 is to lift the tail slag that has fallen onto the slag guide plate 464 at the center of the crushing plate 46 to the crushing contact plate 466 for crushing. The connection between the connecting plate 462 and the gear mounting seat 467 is bolted, and the connection between the worm gear 468 and the gear mounting seat 467 is bearing-connected. The worm gear 468 is driven by the worm 463, which in turn drives the crushing contact plate 466 to rotate.

[0061] Specifically, the metal-nonmetal separation device 3 includes a slag extraction pipe 35 fixedly connected to a slag extraction port reserved on one side of the outer protective plate B45. A conveying device bracket 32 ​​is fixedly installed at the other end of the slag extraction pipe 35. A slag extraction fan 34 is also fixedly installed inside the slag extraction pipe 35. Several conveyor belt support rollers are fixedly installed inside the conveying device bracket 32. A conveyor belt 39 is movably installed on the outside of the several conveyor belt support rollers. Electromagnetic electrodes 38 are fixedly installed on both sides of the conveyor belt 39. A power supply device A33 is fixedly installed on any longer side of the conveying device bracket 32. The power supply device A33 penetrates the outer wall of the conveying device bracket 32 ​​and contacts the electromagnetic electrode 38. Power devices 31 are fixedly installed on both sides of the conveying device bracket 32. The power devices 31 are fixedly installed with power rollers. A waste metal frame 36 is provided on the side of the conveying device bracket 32 ​​near the power device 31. Power supply devices B37 are fixedly installed on both sides of the conveying device bracket 32 ​​near the power device 31.

[0062] In this embodiment, the connection between the slag extraction pipe 35 and the slag extraction port is made by bolts and a sealing gasket. The connection between the slag extraction pipe 35 and the conveying device support 32 is also made by bolts and a sealing gasket. The slag extraction pipe 35 is bolted to both ends of the air inlet and outlet of the slag extraction fan 34. A support roller is mounted inside the conveying device support 32 via bearings. A conveyor belt 39 is sleeved on the outside of the support roller. An electromagnet device is installed inside the conveyor belt 39. The electromagnet electrode 38 is connected to the electromagnet device. The connection between the conveying device support 32 and the power supply device A33 is made by bolts. The power supply device B... The connection between 37 and the conveyor support 32 is also bolted. The electromagnet device on the conveyor belt 39 is divided into two sections. Due to the position of the power supply device A33 and the power supply device B37, when one section of the electromagnet device is energized and working, the other electromagnet device is de-energized. The main function of the power supply device A33 is to supply external power to the electromagnet electrode 38. The power device 31 installed on the conveyor support 32 is used to provide power to the conveyor belt support rollers. All rollers are driven by gears. The main function of the waste metal frame 36 is to collect the screened metal tailings.

[0063] Specifically, the separation device 2 includes a separation box 21. A wave-making device 23 is fixedly installed on the side of the separation box 21 near the metal-non-metal separation device 3. A sedimentation tailings collection device 22 is fixedly installed inside the separation box 21. The wave-making device 23 includes a hydraulic thrust cylinder 232 fixedly connected to the separation box 21. A water-pushing plate 231 is fixedly installed at one end of the hydraulic thrust cylinder 232.

[0064] In this embodiment, the separation tank 21 and the wave-making device 23 are connected by welding. The main function of the wave-making device 23 is to create waves in the water inside the separation tank 21, thereby pushing the upper suspended tailings onto the suspended tailings collection device 1. The separation tank 21 and the sedimentation tailings collection device 22 are connected by welding. The hydraulic thrust cylinder 232 and the separation tank 21 are connected by welding. The hydraulic thrust cylinder 232 and the push plate 231 are connected by bolts.

[0065] Specifically, the sedimentation tailings collection device 22 includes several thrust cylinders 225 fixedly connected to the separation box 21. Each thrust cylinder 225 is fitted with a push rod 221. A crossbeam 222 is fixedly connected between two push rods 221 that are far apart. One end of several traction steel wire ropes 223 is also fixedly connected to the lower end of the crossbeam 222. A screening plate 224 is fixedly installed on the other end of the traction steel wire ropes 223.

[0066] In this embodiment, the separation box 21 is connected to the four thrust cylinders 225 by welding, the thrust cylinders 225 are connected to the push rods 221 by sleeve connection, and the two push rods 221 that are far apart are connected by welding to a crossbeam 222. The crossbeam 222 is connected to the traction steel wire rope 223 by hook connection, and the traction steel wire rope 223 is also connected to the screening plate 224 by hook connection.

[0067] Specifically, the suspended tailings collection device 1 also includes a support 14, on which two power units 11 are fixedly installed, and a discharge plate is fixedly installed between the two power units 11.

[0068] In this embodiment, the bracket 14 and the power unit 11 are fixed by bolt connection, and a discharge plate is installed between the two power units 11. The function of the discharge plate is to carry out the suspended tailings under the drive of the two power units 11.

[0069] Specifically, crank connecting shafts 112 are fixedly installed on both sides of the discharge plate. One end of a crank 111 is sleeved on the crank connecting shaft 112, and the other end of the crank 111 is fixedly connected to the power unit 11.

[0070] In this embodiment, the crank connecting shaft 112 is welded to the discharge plate, the crank 111 is sleeved on the crank connecting shaft 112 through a bearing, the crank 111 is sleeved on the power output shaft of the power device 11, and a key is provided between the crank 111 and the power output shaft of the power device 11.

[0071] Specifically, a slag-hanging plate 12 is provided on one side of the discharge plate and a drain plate 13 is provided on the other side.

[0072] In this embodiment, the main function of the slag hanging plate 12 is to prevent the slag from flowing back, and the main function of the draining plate 13 is to separate the tailings from the water.

[0073] Specifically, the slag-hanging plate 12 is provided with a drainage groove 122, and a slag-hanging barb 121 is provided between the two drainage grooves 122.

[0074] In this embodiment, the main function of the drainage groove 122 on the slag hanging plate 12 is to perform secondary drainage, and the function of the slag hanging barbs 121 is to prevent the tail slag from flowing back.

[0075] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A waste residue treatment device for papermaking process, comprising a crushing device (4), characterized in that: The crushing device (4) also includes a crushing disc (46), on which an outer protective plate B (45) is fixedly installed. An outer protective plate A (42) is fixedly installed on the upper side of the outer protective plate B (45). A cylinder mounting device (43) is fixedly installed inside the outer protective plate A (42) and the outer protective plate B (45). A crushing knife device (44) is fixedly installed inside the cylinder mounting device (43). A tailings collection rail (41) is fixedly installed on the upper end face of the cylinder mounting device (43). A slag extraction port is reserved on one side of the outer protective plate B (45). The cylinder mounting device (43) has several cylinder mounting positions inside, and a cylinder (441) is fixedly installed in any of the cylinder mounting positions. One end of a connecting rod (442) is fixedly installed on the lower end face of the cylinder (441), and one end of a cutter head mounting device (443) is fixedly installed on the other end of the connecting rod (442). A cutter head (444) is fixedly installed on the other end of the cutter head mounting device (443). One working end of a metal-nonmetal separation device (3) is fixedly installed on one side of the crushing device (4), and one end of a separation device (2) is provided at the other working end of the metal-nonmetal separation device (3). A suspended tailings collection device (1) is provided at the other end of the separation device (2). The separation device (2) includes a separation box (21), a wave-making device (23) is fixedly installed on the side of the separation box (21) near the metal-nonmetal separation device (3), a sedimentation tailings collection device (22) is fixedly installed inside the separation box (21), and the wave-making device (23) includes a hydraulic thrust cylinder (232) fixedly connected to the separation box (21), and a pusher plate (231) is fixedly installed at one end of the hydraulic thrust cylinder (232). The suspended tailings collection device (1) also includes a support (14), on which two power devices (11) are fixedly installed, and a discharge plate is fixedly installed between the two power devices (11); a crank connecting shaft (112) is fixedly installed on both sides of the discharge plate, and one end of a crank (111) is sleeved on the crank connecting shaft (112), and the other end of the crank (111) is fixedly connected to the power device (11); a slag hanging plate (12) is provided on one side of the discharge plate and a drain plate (13) is provided on the other side; a drain groove (122) is provided on the slag hanging plate (12), and a slag hanging barb (121) is provided between the two drain grooves (122).

2. The tailings treatment device in the papermaking process according to claim 1, characterized in that: A cylinder mounting plate (4411) is fixedly installed on the upper end face of the cylinder (441), and the cylinder mounting plate (4411) is also fixedly connected to the cylinder mounting device (43).

3. The tailings treatment device in the papermaking process according to claim 1, characterized in that: The crushing disc (46) includes a connecting disc (462), a shock-absorbing disc (465) is fixedly installed on the upper side of the connecting disc (462), a crushing contact disc (466) is fixedly installed on the upper side of the shock-absorbing disc (465), a slag-lifting device (461) is fixedly installed at the upper end of the crushing contact disc (466), a slag-guiding disc (464) is fixedly installed at the center of the slag-lifting device (461), a gear mounting seat (467) is fixedly installed on the lower side of the connecting disc (462), the crushing contact disc (466) is fixedly installed with the mounting shaft (469), the mounting shaft (469) passes through the connecting disc (462) and the gear mounting seat (467) and is fixedly connected to a worm gear (468), and the worm gear (468) is mechanically connected to the worm (463).

4. The tailings treatment device in the papermaking process according to claim 1, characterized in that: The metal-nonmetal separation device (3) includes a slag extraction pipe (35) fixedly connected to a slag extraction port reserved on one side of the outer protective plate B (45). A conveying device bracket (32) is fixedly installed at the other end of the slag extraction pipe (35). A slag extraction fan (34) is also fixedly installed inside the slag extraction pipe (35). Several conveyor belt support rollers are fixedly installed inside the conveying device bracket (32). A conveyor belt (39) is movably installed on the outside of the several conveyor belt support rollers. Electromagnetic electrodes (38) are fixedly installed on both sides of the conveyor belt (39). The conveying device bracket... (32) A power supply device A (33) is fixedly installed on any longer side. The power supply device A (33) penetrates the outer wall of the conveying device bracket (32) and contacts the electromagnet electrode (38). A power device (31) is fixedly installed on both sides of the conveying device bracket (32). The power device (31) is fixedly installed with the power roller. A waste metal frame (36) is provided on the side of the conveying device bracket (32) near the power device (31). A power supply device B (37) is fixedly installed on both sides of the inside of the conveying device bracket (32) near the power device (31).

5. A tailings treatment device for papermaking process according to claim 1, characterized in that: The sedimentation tailings collection device (22) includes several thrust cylinders (225) fixedly connected to the separation box (21). Each thrust cylinder (225) is fitted with a push rod (221). A crossbeam (222) is fixedly connected between two push rods (221) that are far apart. One end of several traction steel wire ropes (223) is also fixedly connected to the lower end of the crossbeam (222). A screening plate (224) is fixedly installed at the other end of the traction steel wire ropes (223).

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