Water treatment system for cloth printing and dyeing production line

Abstract

The application relates to the technical field of industrial wastewater treatment, in particular to a water treatment system of a cloth printing and dyeing production line, which comprises a discharge pipeline for discharging printing and dyeing wastewater and a treatment device, the treatment device comprises a central shaft rotatably arranged in the discharge pipeline, a filter frame fixedly arranged on the central shaft, a filter screen fixedly arranged on the filter frame and a driving piece fixedly arranged on the discharge pipeline and coaxially connected with the front end of the central shaft, a cleaning roller is arranged on the water-approaching side of the filter screen, the top of the cleaning roller is rotatably arranged on the inner wall of the discharge pipeline, cleaning bristles in contact with the water-approaching side of the filter screen are fixedly arranged on the outer wall of the cleaning roller, a driven bevel gear is fixedly arranged at the bottom of the cleaning roller, and the central shaft is fixedly arranged with a driving bevel gear meshing with the driven bevel gear. The application can prevent the filter screen from being easily blocked, maintain good filtering effect, and thus improve the filtering efficiency of the printing and dyeing wastewater treatment equipment.

Description

Technical Field

[0001] This application relates to the field of industrial wastewater treatment technology, and in particular to a water treatment system for a fabric printing and dyeing production line. Background Technology

[0002] The production process of textile fabrics mainly includes two parts: weaving and dyeing. Dyeing is carried out after weaving. The fabric, dyeing agent, and industrial water are added to the dyeing vat and stirred to dye the fabric into the desired color.

[0003] In order to reduce environmental pollution, fabric printing and dyeing production lines usually need to purify the printing and dyeing wastewater before it can be discharged.

[0004] The purification and treatment of textile dyeing wastewater typically includes chemical purification and physical purification. For example, Chinese Patent Publication No. CN112551749A discloses a textile dyeing wastewater treatment device, including a base with supporting legs fixedly connected to the bottom. A purification tank is fixedly connected to the top of the base, and a motor is fixedly connected to one side of the purification tank. The output shaft of the motor is fixedly connected to a rotating rod via a coupling, and a stirring blade is fixedly connected to the outer wall of the rotating rod. A chemical inlet pipe is fixedly connected to the top of the purification tank, and a water outlet pipe is fixedly connected to one side of the purification tank. A water pump is fixedly connected to the top of the purification tank, with a delivery pipe fixedly connected to the outlet of the water pump and a conduit fixedly connected to the inlet. A filter box is fixedly connected to the top of the purification tank, and a concave stainless steel filter screen is fixedly connected to the inner wall of the filter box. In this textile dyeing wastewater treatment device, the filter screen filters and intercepts lint from the textile dyeing solution to achieve physical purification, while chemical agents are added to the wastewater through the chemical inlet pipe to achieve chemical purification.

[0005] However, the filter screens of existing dyeing and printing wastewater treatment equipment are prone to clogging after filtering and intercepting a certain amount of lint, which reduces the filtration effect of the filter screen itself and thus reduces the filtration efficiency of the dyeing and printing wastewater treatment equipment; therefore, further improvements can be made. Summary of the Invention

[0006] In order to prevent the filter screen from clogging easily and maintain a good filtration effect, thereby improving the filtration efficiency of the dyeing and printing wastewater treatment equipment, this application provides a water treatment system for a fabric dyeing and printing production line.

[0007] The above-mentioned objective of this application is achieved through the following technical solution:

[0008] A water treatment system for a fabric printing and dyeing production line includes a discharge pipe for discharging printing and dyeing wastewater and a treatment device. The treatment device includes a central shaft rotatably mounted on the discharge pipe, a filter frame fixed on the central shaft, a filter screen fixed on the filter frame, and a drive component fixed on the discharge pipe and coaxially connected to the front end of the central shaft. A cleaning roller is provided on the water-facing side of the filter screen. The top of the cleaning roller is rotatably mounted on the inner wall of the discharge pipe. Cleaning bristles that contact the water-facing side of the filter screen are fixed on the outer wall of the cleaning roller. A driven bevel gear is fixed at the bottom of the cleaning roller. A driving bevel gear that meshes with the driven bevel gear is fixed on the central shaft.

[0009] By adopting the above technical solution, during the purification treatment of dyeing and printing wastewater, the flow area of ​​the wastewater is adjusted to 1 / 2 of the discharge pipe area, so that the bottom of the filter screen is immersed in the wastewater. This allows the filter screen to filter and intercept the lint that falls off the fabric in the dyeing solution. When the drive unit rotates the central shaft, filter frame, and filter screen, the lint intercepted at the bottom of the filter screen is transferred to the top of the filter screen. At the same time, the central shaft drives the cleaning roller and cleaning brush to rotate through the bevel gear transmission. The cleaning brush cleans the top of the filter screen, making it less prone to clogging and maintaining a good filtration effect, thereby improving the filtration efficiency of the dyeing and printing wastewater treatment equipment. When the cleaning brush rotates and cleans the top of the filter screen, the lint that falls off the top of the filter screen adheres to the cleaning brush. Subsequently, the cleaning comb separates the lint attached to the cleaning brush and collects it inside the collection shell, thus minimizing the possibility of the lint falling back into the dyeing and printing wastewater and affecting the filtration effect of the filter screen.

[0010] Optionally, the cleaning roller has a collection shell on the side away from the filter screen, and a cleaning comb tooth arranged in a cross-overlay with the cleaning bristles is fixed on one side of the collection shell; a cam is fixed on the central shaft, an abutment block is fixed at the bottom of the collection shell to contact the outer wall of the cam, a limiting block is fixed at the top of the collection shell, a limiting groove is opened on the inner wall of the discharge pipe to slide and adapt to the limiting block, and a first elastic element is connected between the bottom of the limiting groove and the limiting block so that the abutment block always tends to contact the outer wall of the cam; a cleaning hole is opened on the outer wall of the discharge pipe to communicate with the limiting groove, and a cleaning cover plate is threadedly connected to the cleaning hole.

[0011] By adopting the above technical solution, when the central shaft drives the cam to rotate, the collection shell moves up and down under the pushing action of the cam and the first elastic element, causing the cleaning comb teeth to insert into the cleaning bristles at an angle. This facilitates the combing and separation of the lint attached to the cleaning bristles, allowing the lint to be collected inside the collection shell. When a certain amount of lint has been collected, the collection shell can be removed for cleaning by rotating and opening the cleaning cover.

[0012] Optionally, a chemical storage tank for installing chemicals is fixed on the outer wall of the discharge pipe. The bottom of the storage tank is connected to an inlet pipe, and the end of the inlet pipe away from the storage tank extends through the inner wall of the discharge pipe and is located directly above the central axis.

[0013] By adopting the above technical solution, during the purification treatment of dyeing and printing wastewater, the chemical agents in the storage tank can be introduced into the dyeing and printing wastewater through the inlet pipe to produce a chemical reaction and achieve chemical purification; while the chemical agents collide with the central axis during the falling process, which is conducive to the dispersion of the chemical agents and the progress of the chemical reaction.

[0014] Optionally, a slide rail is fixedly provided on the inner wall of the discharge pipe corresponding to the position of the inlet pipe. A cover plate that covers the inlet pipe is slidably provided on the slide rail. The cover plate has an inlet that matches the inlet pipe. A limiting rod that passes through the inlet is fixedly provided on the inner wall of the discharge pipe. A second elastic element is connected between the inner wall of the discharge pipe and the cover plate so that the inlet always tends to be offset from the inlet pipe. A wedge-shaped surface is provided on the end of the cover plate away from the second elastic element. A dispensing rod that abuts against the wedge-shaped surface is fixedly provided on the central shaft so that the cover plate slides until the inlet coincides with the inlet pipe.

[0015] By adopting the above technical solution, when the central shaft drives the dispensing rod to rotate, the dispensing rod abuts against the inclined wedge surface, pushing the cover plate to slide until the inlet and the inlet pipe coincide, allowing the chemical agent to be introduced into the dyeing and printing wastewater sequentially through the inlet and the inlet pipe. When the dispensing rod disengages from the inclined wedge surface, the introduction of the chemical agent stops. At this time, the sliding frequency of the cover plate (i.e., the introduction speed of the chemical agent) is directly proportional to the rotation speed of the central shaft. When the dyeing and printing wastewater contains a large amount of impurities, increasing the rotation speed of the filter screen and the introduction speed of the chemical agent by the central shaft can improve the treatment efficiency. When the dyeing and printing wastewater contains a small amount of impurities, slowing down the rotation speed of the filter screen and the introduction speed of the chemical agent by the central shaft can save treatment costs.

[0016] Optionally, a receiving groove is provided on the inner wall of the discharge pipe corresponding to the position of the filter frame, the edge of the filter frame is embedded in the receiving groove, and a cleaning film is fixed on the edge of the filter frame in contact with the inner wall of the receiving groove.

[0017] By adopting the above technical solution, the setting of the receiving tank can reduce the gap between the edge of the filter frame, the edge of the filter screen and the inner wall of the discharge pipe, thereby improving the filtration effect. The cleaning adhesive can scrape the inner wall of the receiving tank to minimize the deposition of lint on the inner wall of the receiving tank.

[0018] Optionally, a fixed sleeve is fixedly provided at the tail end of the central shaft, a rotating sleeve is provided on the rotating sleeve of the central shaft, and a fan blade is fixedly provided on the outer wall of the rotating sleeve.

[0019] By adopting the above technical solution, the fan blade is immersed in the flowing dyeing wastewater. The water flow can drive the fan blade to rotate, and the fixed sleeve is used to prevent the rotating sleeve from separating from the fan blade. The rotation of the fan blade can also make the water flow more turbulent, which is conducive to the chemical reaction between the chemical agents and the dyeing wastewater.

[0020] Optionally, a friction-reducing component is provided between the fixed sleeve and the rotating sleeve.

[0021] By adopting the above technical solution, the friction reduction component can reduce the frictional resistance between the fixed sleeve and the rotating sleeve, which is beneficial to the rotation of the fan blade.

[0022] Optionally, the friction reduction assembly includes a front conical cylinder fixed to the outer wall of the rotating sleeve, a rear conical cylinder fixed to the outer wall of the fixed sleeve, a plurality of front magnets, and a plurality of rear magnets. The plurality of front magnets and the plurality of rear magnets are mutually repulsive and cooperate with each other. The plurality of front magnets are evenly distributed along the central axis and are all fixed to the inner wall of the front conical cylinder. The plurality of rear magnets are evenly distributed along the central axis and are all fixed to the outer wall of the rear conical cylinder.

[0023] By adopting the above technical solution, during the process of water flow driving the fan blades to rotate, the front magnet and the rear magnet are in a mutually repulsive cooperation relationship, which makes it difficult for the fixed sleeve and the rotating sleeve to generate contact friction, thereby increasing the speed of the fan blades and making it easier for the fan blades to create water flow turbulence.

[0024] In summary, this application includes at least the following beneficial technical effects:

[0025] In the process of purifying dyeing and printing wastewater, the flow area of ​​the wastewater is adjusted to half the area of ​​the discharge pipe, so that the bottom of the filter screen is immersed in the wastewater. This allows the filter screen to filter and intercept lint from the fabric. When the drive unit rotates the central shaft, filter frame, and filter screen, the lint intercepted at the bottom of the filter screen is transferred to the top. Simultaneously, the central shaft, through bevel gear transmission, drives the cleaning roller and cleaning brush to rotate. The cleaning brush cleans the top of the filter screen, preventing clogging and maintaining good filtration effect, thereby improving the filtration efficiency of the dyeing and printing wastewater treatment equipment. Meanwhile, the chemical agents in the storage tank can be introduced into the dyeing and printing wastewater through the inlet pipe to produce a chemical reaction, achieving chemical purification. The collision between the falling chemical agents and the central shaft facilitates the dispersion of the chemical agents and promotes the chemical reaction.

[0026] As the cleaning brush rotates and cleans the top of the filter screen, the lint that falls off the top of the filter screen adheres to the cleaning brush. Then, the cleaning comb separates the lint attached to the cleaning brush and collects it inside the collection shell, thereby minimizing the risk of the lint falling back into the dyeing wastewater and affecting the filtration effect of the filter screen. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the drug inlet tube and the drug inlet in this application.

[0028] Figure 2 This is a cross-sectional view of the collection shell in this application.

[0029] Figure 3 This is a partial structural diagram of the drug inlet tube and the drug inlet in this application.

[0030] Figure 4 This is a schematic diagram of the overall structure of the drug inlet tube and the drug outlet in this application, with the latter being offset.

[0031] Figure 5 This is a partial structural diagram of the drug inlet tube and the drug outlet in this application, with the latter being offset.

[0032] Figure 6 This is a schematic diagram of the overall structure of the friction reduction component in this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Discharge pipe; 2. Treatment device; 21. Central shaft; 22. Filter frame; 23. Filter screen; 24. Driving component; 25. Cleaning roller; 26. Cleaning brush bristles; 27. Driven bevel gear; 28. Driving bevel gear; 3. Collection shell; 31. Cleaning comb teeth; 32. Cam; 33. Abutment block; 34. Limiting block; 35. Limiting groove; 36. First elastic element; 37. Cleaning hole; 38. Cleaning cover plate; 4. Medicine storage tank; 41. Medicine inlet pipe; 5. Sealing plate; 51. Medicine inlet; 52. Limiting rod; 53. Second elastic element; 54. Medicine dispensing rod; 6. Receiving groove; 61. Cleaning film; 7. Fixed sleeve; 71. Rotating sleeve; 72. Fan blade; 8. Friction reduction assembly; 81. Front cone; 82. Rear cone; 83. Front magnet; 84. Rear magnet. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0035] This application discloses a water treatment system for a fabric printing and dyeing production line.

[0036] Reference Figure 1 The water treatment system of the fabric printing and dyeing production line includes a discharge pipe 1 and a treatment device 2; wherein, the discharge pipe 1 is connected to the wastewater outlet of the fabric printing and dyeing production line and is used to discharge the wastewater, and the treatment device 2 is installed inside the discharge pipe 1 and is used to purify the wastewater.

[0037] Specifically, the treatment device 2 includes a central shaft 21, a filter frame 22, a filter screen 23, and a drive component 24. The central shaft 21 is a cylindrical rod structure, rotatably mounted inside the discharge pipe 1, and coaxially arranged with the discharge pipe 1. The filter frame 22 is a frame structure, fixed in the middle of the central shaft 21, and coaxially arranged with the central shaft 21. The filter screen 23 is fixed on the water-facing side of the filter frame 22 and is used to filter and intercept the lint falling off the fabric from the dyeing solution to achieve physical purification. The drive component 24 is a motor, fixed outside the discharge pipe 1, and its output shaft is coaxially connected to the central shaft 21 to drive the central shaft 21, the filter frame 22, and the filter screen 23 to rotate.

[0038] A cleaning roller 25 is provided on the water-facing side of the filter screen 23. The cleaning roller 25 is arranged vertically, and its top is rotatably mounted on the inner wall of the discharge pipe 1. A cleaning brush 26 is fixed on the outer wall of the cleaning roller 25, and the cleaning brush 26 contacts the water-facing side of the filter screen 23 for cleaning the filter screen 23. A driven bevel gear 27 is fixed at the bottom of the cleaning roller 25, with its tooth profile facing downwards. A driving bevel gear 28 is fixed on the central shaft 21, with its tooth profile facing the flow direction of the dyeing wastewater. The driven bevel gear 27 meshes with the driving bevel gear 28, and the ratio of the number of teeth of the driven bevel gear 27 to the number of teeth of the driving bevel gear 28 is 1:5.

[0039] During the purification process of dyeing and printing wastewater, the flow area of ​​the wastewater is adjusted to half the area of ​​the discharge pipe 1, so that the bottom of the filter screen 23 is immersed in the wastewater. This allows the filter screen 23 to filter and intercept the lint that falls off the fabric from the dyeing solution. When the drive component 24 drives the central shaft 21, filter frame 22, and filter screen 23 to rotate, the lint intercepted at the bottom of the filter screen 23 is transferred to the top of the filter screen 23. At the same time, the central shaft 21 drives the cleaning roller 25 and cleaning brush 26 to rotate through the bevel gear transmission. The cleaning brush 26 cleans the top of the filter screen 23, making the filter screen 23 less prone to clogging and maintaining a good filtration effect, thereby improving the filtration efficiency of the dyeing and printing wastewater treatment equipment.

[0040] In this embodiment, the cleaning roller 25 is provided with a collection shell 3 on the side away from the filter screen 23. The collection shell 3 is a shell structure with an opening on one side. A cleaning comb 31 is fixed on one side of the collection shell 3, and the cleaning comb 31 and the cleaning bristles 26 are arranged to overlap each other.

[0041] As the cleaning brush 26 rotates and cleans the top of the filter screen 23, the lint that falls off the top of the filter screen 23 adheres to the cleaning brush 26. Then, the cleaning comb 31 combs and separates the lint that is attached to the cleaning brush 26, so that the lint is collected inside the collection shell 3, thereby minimizing the risk of the lint falling back into the dyeing wastewater and affecting the filtration effect of the filter screen 23.

[0042] Reference Figure 1-2 In this embodiment, a cam 32 is fixedly mounted on the central shaft 21, and the cam 32 is located directly below the collection shell 3. An abutment block 33 is fixedly mounted on the bottom of the collection shell 3, and the abutment block 33 contacts the outer wall of the cam 32. A limiting block 34 is fixedly mounted on the top of the collection shell 3. A limiting groove 35 is opened on the inner wall of the discharge pipe 1, and the limiting groove 35 is located directly above the collection shell 3. The limiting groove 35 and the limiting block 34 are slidably adapted to each other. A first elastic element 36 is connected between the bottom of the limiting groove 35 and the limiting block 34. The first elastic element 36 is a compression spring. The first elastic element 36 can push the limiting block 34 so that the abutment block 33 always tends to contact the outer wall of the cam 32. A cleaning hole 37 communicating with the limiting groove 35 is opened on the outer wall of the discharge pipe 1. A cleaning cover plate 38 is threadedly connected to the cleaning hole 37.

[0043] As the central shaft 21 drives the cam 32 to rotate, the collection shell 3 moves up and down under the pushing action of the cam 32 and the first elastic element 36, causing the cleaning comb teeth 31 to insert into the cleaning bristles 26 at an angle. This facilitates the combing and separation of the lint attached to the cleaning bristles 26, allowing the lint to be collected inside the collection shell 3. When a certain amount of lint has been collected, the collection shell 3 can be removed for cleaning by rotating and opening the cleaning cover 38.

[0044] Reference Figure 1-3 In this embodiment, a drug storage tank 4 is fixed on the outer wall of the discharge pipe 1. The drug storage tank 4 is used to store chemical agents. The bottom of the drug storage tank 4 is connected to a drug inlet pipe 41. The end of the drug inlet pipe 41 away from the drug storage tank 4 extends through to the inner wall of the discharge pipe 1. The end of the drug inlet pipe 41 away from the drug storage tank 4 is located directly above the central axis 21.

[0045] During the purification process of dyeing and printing wastewater, the chemical agents in the storage tank 4 can be introduced into the dyeing and printing wastewater through the inlet pipe 41 to produce a chemical reaction and achieve chemical purification; while the chemical agents collide with the central shaft 21 during the falling process, which is conducive to the dispersion of the chemical agents and the progress of the chemical reaction.

[0046] Reference Figure 2-4In this embodiment, a slide rail is fixedly installed on the inner wall of the discharge pipe 1 at the position corresponding to the inlet pipe 41. The slide rail includes two L-shaped rails located on both sides of the inlet pipe 41. A cover plate 5 is slidably installed on the slide rail. The cover plate 5 is an arc-shaped plate structure that matches the inner wall of the discharge pipe 1, so that the cover plate 5 can cover the inlet pipe 41. The cover plate 5 has an inlet 51 that matches the inlet pipe 41. When the cover plate 5 slides to the point where the inlet 51 overlaps with the inlet pipe 41, the chemical agent can be introduced into the dyeing wastewater in sequence through the inlet pipe 41 and the inlet 51. Otherwise, the discharge of the chemical agent is restricted.

[0047] A vertically arranged limiting rod 52 is fixedly installed on the inner wall of the discharge pipe 1. The limiting rod 52 passes through the drug inlet 51 and is located on one side of the drug inlet pipe 41. A second elastic element 53 is connected between the inner wall of the discharge pipe 1 and the cover plate 5. The second elastic element 53 is a compression spring. The second elastic element 53 can push the cover plate 5 so that the drug inlet 51 always tends to be offset from the drug inlet pipe 41. When the second elastic element 53 pushes the cover plate 5 until the inner wall of the drug inlet 51 contacts the limiting rod 52, the drug inlet 51 is offset from the drug inlet pipe 41. Otherwise, they overlap.

[0048] The end of the cover plate 5 away from the second elastic member 53 is provided with a wedge-shaped surface. The central shaft 21 is fixedly provided with a drug release rod 54. The position of the drug release rod 54 corresponds to the wedge-shaped surface of the cover plate 5, so that the drug release rod 54 can abut against the wedge-shaped surface and push the cover plate 5 to slide against the elastic force of the second elastic member 53, so that the cover plate 5 slides until the drug inlet 51 coincides with the drug inlet tube 41.

[0049] As the central shaft 21 drives the dispensing rod 54 to rotate, the dispensing rod 54 abuts against the inclined wedge surface, pushing the cover plate 5 to slide until the inlet 51 coincides with the inlet pipe 41, allowing the chemical agent to be introduced into the dyeing wastewater sequentially through the inlet pipe 41 and the inlet 51. When the dispensing rod 54 disengages from the inclined wedge surface, the introduction of the chemical agent stops. At this time, the sliding frequency of the cover plate 5 (i.e., the introduction speed of the chemical agent) is directly proportional to the rotation speed of the central shaft 21. When the dyeing wastewater contains a large amount of impurities, increasing the rotation speed of the filter screen 23 and the introduction speed of the chemical agent by the central shaft 21 can improve the treatment efficiency. When the dyeing wastewater contains a small amount of impurities, slowing down the rotation speed of the filter screen 23 and the introduction speed of the chemical agent by the central shaft 21 can save treatment costs. In addition, when the dispensing rod 54 disengages from the inclined wedge, the second elastic member 53 can push the cover plate 5 to quickly reset and impact the limiting rod 52. The limiting rod 52 transmits the vibration generated by the impact to the inlet tube 41 on the side, so as to avoid the chemical agent from getting blocked in the inlet tube 41.

[0050] Reference Figure 4-6In this embodiment, a receiving groove 6 is provided on the inner wall of the discharge pipe 1 corresponding to the position of the filter frame 22. The edge of the filter frame 22 is embedded in the receiving groove 6, and a cleaning adhesive sheet 61 is fixed on the edge of the filter frame 22 in contact with the inner wall of the receiving groove 6. The setting of the receiving groove 6 can reduce the gap between the edge of the filter frame 22, the edge of the filter screen 23 and the inner wall of the discharge pipe 1, thereby improving the filtration effect. The cleaning adhesive can scrape the inner wall of the receiving groove 6, minimizing the deposition of lint on the inner wall of the receiving groove 6.

[0051] In this embodiment, a fixed sleeve 7 is fixedly provided at the tail end of the central shaft 21, and a rotating sleeve 71 is provided on the rotating sleeve 71. A fan blade 72 is fixedly provided on the outer wall of the rotating sleeve 71. The fan blade 72 is partially immersed in the flowing dyeing wastewater. The water flow can drive the fan blade 72 to rotate. The fixed sleeve 7 is used to prevent the rotating sleeve 71 from separating from the fan blade 72. The rotation of the fan blade 72 can also make the water flow more turbulent, which is conducive to the chemical reaction between the chemical agents and the dyeing wastewater.

[0052] In this embodiment, a friction-reducing component 8 is provided between the fixed sleeve 7 and the rotating sleeve 71. The friction-reducing component 8 can reduce the frictional resistance between the fixed sleeve 7 and the rotating sleeve 71, which is beneficial to the rotation of the fan blade 72.

[0053] Specifically, the friction reduction assembly 8 includes a front cone 81, a rear cone 82, multiple front magnets 83, and multiple rear magnets 84. The front cone 81 and the rear cone 82 are both cone-shaped structures. The front cone 81 is coaxially fixed to one end of the outer periphery of the rotating sleeve 71 near the fixed sleeve 7, and the rear cone 82 is coaxially fixed to one end of the outer periphery of the fixed sleeve 7 near the rotating sleeve 71. The conical surfaces of the front cone 81 and the rear cone 82 are both arranged facing the front end of the discharge pipe 1. Both the front magnet 83 and the rear magnet 84 are permanent magnets. There are three front magnets 83 and three rear magnets 84. The front magnets 83 and the rear magnets 84 are mutually repulsive and coordinated. The three front magnets 83 are evenly distributed along the central axis 21 and are fixed to the inner wall of the front cone 81. The three rear magnets 84 are evenly distributed along the central axis 21 and are fixed to the outer wall of the rear cone 82. That is, the three front magnets 83 and the three rear magnets 84 are set in a one-to-one correspondence.

[0054] During the process of water flow driving the fan blade 72 to rotate, the front magnet 83 and the rear magnet 84 are in a mutually repulsive relationship, making it difficult for the fixed sleeve 7 and the rotating sleeve 71 to generate contact friction, thereby increasing the rotational speed of the fan blade 72 and making it easier for the fan blade 72 to create water flow turbulence.

[0055] Implementation Principle: During the purification treatment of dyeing and printing wastewater, the flow area of ​​the wastewater is adjusted to half the area of ​​the discharge pipe 1, so that the bottom of the filter screen 23 is immersed in the wastewater. This allows the filter screen 23 to filter and intercept the lint that falls off the fabric from the dyeing solution. When the drive component 24 drives the central shaft 21, filter frame 22, and filter screen 23 to rotate, the lint intercepted at the bottom of the filter screen 23 is transferred to the top of the filter screen 23. At the same time, the central shaft 21 drives the cleaning roller 25 and cleaning brush 26 to rotate through the bevel gear transmission. The cleaning brush 26 cleans the top of the filter screen 23, making it less prone to clogging and maintaining a good filtration effect, thereby improving the filtration efficiency of the dyeing and printing wastewater treatment equipment. The chemical agents in the storage tank 4 can be introduced into the dyeing and printing wastewater through the inlet pipe 41 to produce a chemical reaction and achieve chemical purification. The chemical agents collide with the central shaft 21 during the falling process, which is beneficial to the dispersion of the chemical agents and the progress of the chemical reaction.

[0056] As the cleaning brush 26 rotates and cleans the top of the filter screen 23, the lint that falls off the top of the filter screen 23 adheres to the cleaning brush 26. Then, the cleaning comb 31 combs and separates the lint that is attached to the cleaning brush 26, so that the lint is collected inside the collection shell 3, thereby minimizing the risk of the lint falling back into the dyeing wastewater and affecting the filtration effect of the filter screen 23.

[0057] The embodiments described herein are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A water treatment system for a fabric printing and dyeing production line, comprising a discharge pipe (1) for discharging printing and dyeing wastewater and a treatment device (2), characterized in that: The processing device (2) includes a central shaft (21) rotatably mounted on the discharge pipe (1), a filter frame (22) fixed on the central shaft (21), a filter screen (23) fixed on the filter frame (22), and a drive component (24) fixed on the discharge pipe (1) and coaxially connected to the front end of the central shaft (21). A cleaning roller (25) is provided on the water-facing side of the filter screen (23). The top of the cleaning roller (25) is rotatably mounted on the inner wall of the discharge pipe (1). Cleaning bristles (26) are fixed on the outer wall of the cleaning roller (25) and contact the water-facing side of the filter screen (23). A driven bevel gear (27) is fixed at the bottom of the cleaning roller (25). The central shaft (21)... A driving bevel gear (28) is fixedly provided to mesh with the driven bevel gear (27); a collection shell (3) is provided on the side of the cleaning roller (25) away from the filter screen (23), and a cleaning comb (31) is fixedly provided on one side of the collection shell (3) to cross and overlap with the cleaning bristles (26); a cam (32) is fixedly provided on the central shaft (21), an abutment block (33) is fixedly provided at the bottom of the collection shell (3) to contact the outer wall of the cam (32), a limiting block (34) is fixedly provided at the top of the collection shell (3), and a limiting groove (35) is opened on the inner wall of the discharge pipe (1) to slide and adapt to the limiting block (34), and the bottom of the limiting groove (35) is connected to the limiting block (34) by a connection. The first elastic element (36) ensures that the abutment block (33) always tends to contact the outer wall of the cam (32); the outer wall of the discharge pipe (1) is provided with a cleaning hole (37) that communicates with the limiting groove (35), and the cleaning hole (37) is threadedly connected to a cleaning cover plate (38); the outer wall of the discharge pipe (1) is fixedly provided with a chemical agent storage tank (4), the bottom of the storage tank (4) is connected to an inlet pipe (41), and the end of the inlet pipe (41) away from the storage tank (4) extends through to the inner wall of the discharge pipe (1) and is located directly above the central axis (21); the inner wall of the discharge pipe (1) is fixedly provided with a slide rail corresponding to the position of the inlet pipe (41), and the slide rail is slidably provided. A cover plate (5) is provided to cover the inlet tube (41). The cover plate (5) has an inlet (51) that matches the inlet tube (41). A limiting rod (52) that passes through the inlet (51) is fixed on the inner wall of the discharge pipe (1). A second elastic element (53) is connected between the inner wall of the discharge pipe (1) and the cover plate (5) so that the inlet (51) always tends to be offset from the inlet tube (41). The end of the cover plate (5) away from the second elastic element (53) is provided with a wedge surface. A dispensing rod (54) that abuts against the wedge surface is fixed on the central shaft (21) so that the cover plate (5) slides until the inlet (51) coincides with the inlet tube (41).

2. The water treatment system for a fabric printing and dyeing production line according to claim 1, characterized in that: The inner wall of the discharge pipe (1) is provided with a receiving groove (6) corresponding to the position of the filter frame (22). The edge of the filter frame (22) is embedded in the receiving groove (6), and a cleaning film (61) that contacts the inner wall of the receiving groove (6) is fixed on the edge of the filter frame (22).

3. The water treatment system for a fabric printing and dyeing production line according to claim 2, characterized in that: The central shaft (21) is fixedly provided with a fixed sleeve (7) at its tail end, and the central shaft (21) rotating sleeve (71) is provided with a rotating sleeve (71), and the outer wall of the rotating sleeve (71) is fixedly provided with a fan blade (72).

4. The water treatment system for a fabric printing and dyeing production line according to claim 3, characterized in that: A friction-reducing component (8) is provided between the fixed sleeve (7) and the rotating sleeve (71).

5. The water treatment system for a fabric printing and dyeing production line according to claim 4, characterized in that: The friction reduction assembly (8) includes a front conical cylinder (81) fixed to the outer wall of the rotating sleeve (71), a rear conical cylinder (82) fixed to the outer wall of the fixed sleeve (7), a plurality of front magnets (83) and a plurality of rear magnets (84). The plurality of front magnets (83) and the plurality of rear magnets (84) are mutually repulsive and cooperate with each other. The plurality of front magnets (83) are evenly distributed along the central axis (21) and are all fixed to the inner wall of the front conical cylinder (81). The plurality of rear magnets (84) are evenly distributed along the central axis (21) and are all fixed to the outer wall of the rear conical cylinder (82).

Images