A device for treating garment printing and dyeing wastewater

Abstract

The application discloses a garment printing and dyeing wastewater treatment device and relates to the technical field of industrial wastewater treatment tools. The device comprises a treatment box main body, a filter cleaning assembly is arranged in a rough filtering chamber, a mixing assembly is arranged in a first medicine mixing chamber, and a purification filtering assembly is arranged in a purification chamber and a fine filtering chamber. The cooperation between the treatment box main body, the isolation plate group, the rough filtering chamber, the first medicine mixing chamber, the second medicine mixing chamber, the purification chamber and the fine filtering chamber realizes the continuous and graded treatment of printing and dyeing wastewater. The cooperation between the first servo motor, the bevel gear transmission structure, the screw rod, the cleaning block and the automatic pollution discharge structure realizes the double-side scraping, cleaning liquid flushing and automatic impurity discharge of the filter screen. The cooperation between the second servo motor, the stirring roller, the circulating cylinder, the annular medicine feeding pipe, the filler plate and the circulating treatment structure realizes the uniform mixing of the medicine, the rapid settlement of the flocculation and the recycling treatment of the wastewater failing to meet the standards.

Description

Technical Field

[0001] This invention relates to the technical field of industrial wastewater treatment equipment, and more particularly to a garment dyeing and printing wastewater treatment device. Background Technology

[0002] With the continuous development of the garment processing and textile printing and dyeing industry, the amount of printing and dyeing wastewater generated by production processes such as dyeing, rinsing, desizing, and finishing is constantly increasing. This type of wastewater usually contains fabric scraps, fibers, suspended particles, dyes, auxiliaries, and some dissolved organic matter. It is characterized by high turbidity, deep color, large fluctuations in pH, and complex pollutant composition. If it is discharged directly without sufficient treatment, it will not only pollute the surrounding water environment but also increase the pressure on enterprises for subsequent discharge and reuse treatment. Therefore, garment factories usually need to use wastewater treatment and purification equipment to sequentially filter impurities, mix chemicals, flocculate and settle, and adsorption filter the printing and dyeing wastewater to reduce the content of suspended solids, dyes, and other pollutants in the wastewater. Existing purification equipment for treating dyeing and printing wastewater in garment factories mainly consists of a treatment tank, an inlet structure, a coarse filtration structure, a chemical dosing and mixing structure, a flocculation and sedimentation structure, a fine filtration structure, and an outlet structure. The treatment tank serves as the main body of the wastewater treatment system, containing the dyeing and printing wastewater to be treated. The inlet structure connects to the front of the treatment tank, conveying the wastewater into the equipment. The coarse filtration structure typically uses a filter screen to trap fabric scraps, thread ends, fibers, and larger solid particles in the wastewater. The chemical dosing and mixing structure adds acid-base regulators, coagulants, flocculants, or coagulant aids to the wastewater through a dosing pipe, and uses a stirrer to mix the chemicals with the wastewater. The flocculation and sedimentation structure aggregates colloidal particles and suspended solids in the wastewater to form flocs, which are then separated by gravity. The fine filtration structure typically uses filter cotton, activated carbon, or other filter materials to further filter and adsorb the settled wastewater. Finally, the treated wastewater is discharged through the outlet structure. While the aforementioned structure can complete the basic filtration, dosing, and purification treatment of dyeing and printing wastewater, the existing equipment's coarse filtration, reagent mixing, flocculation sedimentation, and fine filtration structures are mostly arranged sequentially in a single flow direction. There is a lack of coordinated adjustment and cyclical treatment methods between the various treatment stages. On the one hand, fabric scraps, fibers, and adhesive dye sludge in the dyeing and printing wastewater easily and continuously adhere to the filter screen surface. Existing filters typically require manual disassembly or washing after shutdown. As impurities gradually accumulate, the effective flow area of ​​the filter screen continuously decreases, easily causing a decrease in filtration speed or even clogging, and increasing equipment downtime for cleaning. On the other hand, existing dosing structures mostly use single... In traditional methods of dosing and ordinary stirring, the chemicals tend to concentrate in localized areas, and stagnant zones and dead zones may form within the treatment tank. This results in uneven mixing of the chemicals and wastewater, making it difficult for suspended particles and dye pollutants to fully form flocs. Furthermore, wastewater that does not meet treatment requirements after one dosing and sedimentation process typically continues to flow to the effluent outlet. The lack of a mechanism for recirculation based on pH and turbidity testing results easily leads to insufficient reaction time, inadequate flocculation and sedimentation, and fluctuations in the final effluent quality. This makes it difficult to meet the requirements of continuous treatment, automatic cleaning, and stable purification of garment factory dyeing and printing wastewater. Therefore, improvements are needed to address these issues. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a wastewater treatment device for garment printing and dyeing.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a garment dyeing wastewater treatment device, comprising a treatment tank body, a support frame for support below the treatment tank body, a cavity in the treatment tank body, and a set of isolation plates arranged sequentially along the water flow direction. The isolation plate set includes a first isolation plate, a second isolation plate, a third isolation plate, and a fourth isolation plate, and the isolation plate set divides the treatment tank body into a coarse filtration chamber, a first chemical mixing chamber, a second chemical mixing chamber, a purification chamber, and a fine filtration chamber along the water flow direction. An inlet platform communicating with the coarse filtration chamber is installed above the rear end of one side of the treatment tank body, and an outlet platform communicating with the fine filtration chamber is installed below the front end of the other side. A filtration and cleaning component for filtering and cleaning large particulate impurities is installed in the coarse filtration chamber. A mixing component for improving the mixing of wastewater and chemicals is installed in the first and second chemical mixing chambers. A purification and filtration component is installed in the purification chamber and the fine filtration chamber.

[0005] Preferably, the filter cleaning assembly includes positioning frames that are inclinedly installed on both sides of the inner wall above the coarse filter chamber. The positioning frames are square in shape and have a filter screen installed on their inner sides. The front end and one side of the inner cavity of the positioning frames are respectively provided with a first driving groove and a second driving groove in the horizontal direction and in the vertical direction. The first driving groove and the second driving groove are connected and form a connected area. A limiting groove that connects to the second driving groove is provided in the vertical direction on one side of the positioning frame.

[0006] Preferably, a rotating column is rotatably connected laterally in the first drive groove, and a first bevel gear placed in the communicating area is fixedly connected to one side of the rotating column. A lead screw is rotatably connected longitudinally in the second drive groove, and a second bevel gear placed in the communicating area and meshing with the first bevel gear is fixedly connected to the front end of the lead screw.

[0007] Preferably, the lead screw is threadedly connected to a cleaning block adapted to the second drive groove and the limiting groove. The front and rear ends of the cleaning block are fixed with first corrugated sleeves along the inclined direction of the positioning frame to prevent sewage from entering the second drive groove. One end of the rotating column passes through the positioning frame and the main body of the treatment box, and is connected to a first servo motor placed on the outside of the main body of the treatment box through a coupling. A protective box fixed to the outer wall of the main body of the treatment box is sleeved on the outside of the first servo motor.

[0008] Preferably, the cleaning block has two cleaning platforms, and the two cleaning platforms are respectively attached to the two inclined surfaces of the filter screen at their proximal ends. The cleaning platform has a collection groove for collecting impurities on the inclined surface of the filter screen along the inclined direction, and a chamfer for scraping off impurities on the inclined surface of the filter screen at the other end. The cleaning platform is equipped with a one-way cleaning device, which includes a U-shaped groove in the middle of the inner cavity of the two cleaning platforms. The two open ends of the U-shaped groove are connected to the collection groove, and a support platform is fixed to the open end of the U-shaped groove. The support platform is connected to a plurality of equidistant fan-shaped grooves, and a one-way ball is placed on the support platform along the U-shaped groove. One-way platforms are installed on the inner walls of both sides of the transverse end of the U-shaped groove to prevent the one-way ball from approaching.

[0009] Preferably, each of the two cleaning stations has a connecting hole in the middle that connects to the corresponding U-shaped slot, and a Y-shaped cleaning hose is fixed to the connecting hole. The other end of the two cleaning hoses passes through the main body of the treatment box and is connected to a first liquid supply pump installed on the top surface of the main body of the treatment box. The inlet end of the first liquid supply pump is connected to an inlet hose. The rear end of the main body of the treatment box is provided with a collection box for storing cleaning liquid, and the other end of the inlet hose is connected to the collection box.

[0010] Preferably, a drain trough is provided in the middle of one side of the front end of the main body of the treatment box, and an isolation platform is slidably installed in conjunction with the drain trough. The inclined end of the positioning frame is placed in the middle of the drain trough. Two limiting platforms are installed on the front wall of the coarse filtration chamber. The middle of the limiting platform has a connecting groove adapted for the sliding passage of the cleaning platform. Limiting blocks are provided on both sides of the limiting platform along the inclined direction. The limiting blocks have a U-shaped structure. The cleaning platform is equipped with a matching guide block, and the other end of the limiting block is engaged with the inner wall of the coarse filtration chamber. A detection groove with a connecting groove is provided in the middle of the far side of the two limiting platforms, and is equipped with... The detection tank is equipped with a metal plate to detect whether the cleaning platform is in place. The drain tank has locking slots on both sides, and an electromagnetic block is installed in the locking slots to fix the isolation platform and to interact with the metal plate. A drain pipe is installed around the drain tank. The inner wall of the drain pipe is aligned with the drain tank, and a fixing plate is installed horizontally in the middle of the inner side. A second corrugated sleeve is installed in the middle of the rear end of the fixing plate. The other end of the second corrugated sleeve is fixed to the front end of the isolation platform. Damping springs are installed on both sides of the fixing plate and placed inside the second corrugated sleeve. The other end of the damping springs is fixed to the front end of the isolation platform.

[0011] Preferably, the mixing assembly includes a circulation cylinder installed in the first and second drug mixing chambers. The circulation cylinder has a hyperbolic cross-section and a stirring roller is vertically installed in the middle. An impeller is fixed below the stirring roller and extends through the main body of the treatment tank above it. A second servo motor is connected to the top of the main body of the treatment tank via a coupling above the stirring roller. An annular dosing pipe is sleeved on the upper and lower sides of the inner side of the circulation cylinder. The annular dosing pipe has multiple dosing holes that are equidistantly connected, and the liquid inlet end of the annular dosing pipe extends through the top surface of the main body of the treatment tank.

[0012] Preferably, the purification and filtration assembly includes an isolation frame installed above the inner wall of the purification chamber and a perforated limiting cover installed above the inner wall of the fine filtration chamber. A circulation device is installed between the purification chamber and the first drug mixing chamber. Multiple packing plates are installed at equal intervals and at an angle in the middle of the isolation frame. The circulation device includes a second liquid supply pump installed on the top surface of the treatment tank body. The inlet and outlet ends of the second liquid supply pump are respectively connected to a first circulation hose and a second circulation hose. The other end of the first circulation hose is connected to the purification chamber and is placed above the packing plates. The other end of the second circulation hose is connected to the first drug mixing chamber and is placed below the first drug mixing chamber. An installation groove penetrating the treatment tank body is opened below the purification chamber, and a collection platform for collecting flocculants is installed in conjunction with the installation groove. A discharge pipe is connected to the middle of the bottom surface of the collection platform, and an electronic valve is installed at the other end of the discharge pipe. Filter cotton and activated carbon are installed sequentially inside the two limiting covers.

[0013] Preferably, a pH sensor and a turbidity sensor are installed in each of the coarse filtration chamber, the first drug mixing chamber, the second drug mixing chamber, the purification chamber, and the fine filtration chamber. A first flow channel for sewage flow is opened at the lower end of the first isolation plate, the second isolation plate, and the third isolation plate, and a second flow channel for sewage flow is opened at the upper end of the fourth isolation plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention achieves continuous, graded treatment of dyeing and printing wastewater through the coordination of the treatment chamber body, isolation plate assembly, coarse filtration chamber, first chemical mixing chamber, second chemical mixing chamber, purification chamber, and fine filtration chamber. It not only utilizes the coarse filtration chamber, first chemical mixing chamber, second chemical mixing chamber, purification chamber, and fine filtration chamber to sequentially complete the interception of large particulate impurities, two-stage chemical mixing, flocculation sedimentation, and fine adsorption filtration, but also guides wastewater from the lower part of adjacent treatment chambers through the first flow channels at the lower ends of the first, second, and third isolation plates. Furthermore, in conjunction with the second flow channel at the upper end of the fourth isolation plate, it allows the relatively clarified wastewater in the upper part of the purification chamber to enter the fine filtration chamber, forming a... The staggered flow path extends the flow distance and reaction time of wastewater within the treatment tank, reducing the likelihood of untreated wastewater flowing out directly. A continuous wastewater treatment channel is formed within the tank via the inlet platform, various treatment chambers, and the outlet platform. All treatment structures are centrally located within the same tank, eliminating the need for separate treatment pools and additional connecting pipelines, thus reducing equipment space requirements and intermediate transport links. The support frame elevates the treatment tank, improving equipment stability and providing operational space for the installation, discharge, and maintenance of the collection platform, discharge pipes, and electronic valves, meeting the needs of garment factory dyeing and printing wastewater treatment for a compact structure, continuous treatment, and stable operation.

[0015] 2. This invention achieves double-sided scraping of the filter screen, rinsing with cleaning liquid, and automatic discharge of impurities through the coordinated operation of a first servo motor, a bevel gear transmission structure, a lead screw, a cleaning block, and an automatic sewage discharge structure. The first servo motor drives the first bevel gear to rotate via a rotating column. After the first bevel gear meshes with the second bevel gear, it drives the lead screw to rotate. Under the constraint of the second drive groove and the limiting groove, the rotational motion of the lead screw is converted into the linear motion of the cleaning block along the inclined direction of the filter screen. This allows the two cleaning platforms to move synchronously against the two surfaces of the filter screen, respectively. The chamfers on the cleaning platforms scrape off the fibers, cloth scraps, and dye sludge adhering to the surface of the filter screen. The scraped impurities are collected in a collection tank to prevent the filter screen from becoming clogged due to continuous accumulation of impurities. The first liquid supply pump draws cleaning liquid from the collection tank through an inlet hose. The cleaning liquid is then delivered to the two cleaning stations via Y-shaped cleaning hoses. The cleaning liquid flows through U-shaped slots and fan-shaped grooves on the support platform to the collection tank and filter screen surface, allowing mechanical scraping and liquid rinsing to proceed simultaneously, improving the removal of adhesive contaminants. The one-way ball works in conjunction with the support platform to prevent sewage and impurities from flowing back into the cleaning liquid supply line, reducing the risk of blockages in the cleaning hoses and the first liquid supply pump. The metal plate detects the arrival of the cleaning block and releases the electromagnetic block from locking the isolation platform. The impurities pushed by the cleaning block and the cleaning liquid together push the isolation platform to open the drain tank, allowing the impurities to be discharged through the drain pipe. After the discharge is completed, the damping spring pushes the isolation platform to automatically reset, and the electromagnetic block locks it again. This achieves automatic connection of the filter screen cleaning, discharge, and reset processes, reducing the number of times the filter screen needs to be manually disassembled and cleaned and the equipment downtime.

[0016] 3. This invention achieves uniform mixing of chemicals, rapid sedimentation of flocculants, and recirculation of substandard wastewater through the coordination of a second servo motor, a stirring roller, a circulating cylinder, an annular dosing pipe, a packing plate, and a circulating treatment structure. The second servo motor drives the stirring roller and its lower impeller to rotate synchronously. The stirring roller generates axial stirring of the wastewater, and the impeller generates axial pushing of the wastewater. Combined with the circulating cylinder with a reduced flow cross-section in the middle, this creates continuous circulation of wastewater inside and outside the circulating cylinder, reducing static areas and dead zones in the first and second chemical mixing chambers. The annular dosing pipes at the top and bottom of the circulating cylinder disperse chemicals from different heights and circumferential positions through multiple dosing holes, allowing the chemicals to immediately diffuse with the circulating water flow after entering the wastewater. This avoids excessively high local chemical concentrations caused by single-point dosing. Furthermore, the phased addition of different chemicals through the two chemical mixing chambers reduces premature mixing and mutual consumption of different chemicals, improving the interaction between chemicals and dyeing wastewater. Uniformity of contact and sufficiency of reaction; after the wastewater undergoes chemical treatment, it enters the purification chamber, where multiple inclined packing plates disperse the water flow into multiple thin-layer flows, allowing fine flocs to come into contact with each other and aggregate into larger flocs. The larger flocs slide down the packing plates to the collection platform and are centrally discharged through the discharge pipe and electronic valve, reducing the long-term accumulation of flocs in the purification chamber; when the pH and turbidity sensors detect that the wastewater in the purification chamber does not meet the set requirements, the second liquid supply pump draws the wastewater above the packing plates through the first circulation hose, and then transports the wastewater back to the first chemical mixing chamber for chemical dosing, mixing, and sedimentation treatment through the second circulation hose, avoiding the direct discharge of insufficiently treated wastewater; the wastewater that meets the requirements passes through filter cotton and activated carbon in sequence, completing the interception of fine suspended particles and the adsorption and purification of dyes, odors, and some dissolved organic matter, thereby improving the equipment's adaptability to dyeing and printing wastewater with different pollution levels and the stability of the final effluent water quality. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall installation structure of the present invention; Figure 2 This is a half-sectional schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the second circulation hose structure of the present invention; Figure 4 This is a schematic diagram of the metal mounting platform structure of the present invention; Figure 5 This is a schematic diagram of the annular dosing tube structure of the present invention; Figure 6 This is a schematic diagram of the rotating column and lead screw structure of the present invention; Figure 7 This is a schematic diagram of the sewage pipe and damping spring structure of the present invention; Figure 8 This is a partial structural cross-sectional view of the present invention; Figure 9 This is a schematic diagram of the cleaning block structure of the present invention; Figure 10 For the present invention Figure 6 Enlarged diagram of part A in the middle; Figure 11 For the present invention Figure 7 Enlarged diagram of section B; Figure 12 For the present invention Figure 8 Enlarged diagram of section C.

[0018] The following are the components listed in the diagram: 1. Processing box body; 2. Support frame; 3. First isolation plate; 4. Second isolation plate; 5. Third isolation plate; 6. Fourth isolation plate; 7. Coarse filtration chamber; 8. First drug mixing chamber; 9. Second drug mixing chamber; 10. Purification chamber; 11. Fine filtration chamber; 12. Inlet platform; 13. Outlet platform; 14. Positioning frame; 15. Filter screen; 16. Rotating column; 17. First bevel gear; 18. Lead screw; 19. Second bevel gear; 20. Cleaning block; 21. First corrugated sleeve; 22. First servo motor; 23. U-shaped slot; 24. One-way stage; 25. Support platform; 26. One-way ball; 27. Limiting stage. 28. Isolation platform; 29. ​​Electromagnetic block; 30. Drain pipe; 31. Fixing plate; 32. Second corrugated sleeve; 33. Damping spring; 34. Cleaning hose; 35. First liquid supply pump; 36. Inlet hose; 37. Collection tank; 38. Second servo motor; 39. Stirring roller; 40. Annular dosing pipe; 41. Isolation frame; 42. Packing plate; 43. Second liquid supply pump; 44. First circulation hose; 45. Second circulation hose; 46. Collection platform; 47. Electronic valve; 48. Limit cover; 49. Filter cotton; 50. Activated carbon; 51. pH sensor; 52. Turbidity sensor; 53. Metal mounting platform; 54. Circulation cylinder. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Example 1: See Figures 1 to 12This invention discloses a garment dyeing and printing wastewater treatment device, comprising a treatment tank body 1 for containing the dyeing and printing wastewater to be treated and providing a relatively enclosed treatment space for wastewater filtration, reagent mixing, flocculation sedimentation, and adsorption purification; a support frame 2 is fixedly installed below the treatment tank body 1 to support the weight of the treatment tank body 1 and the wastewater inside, while also raising the treatment tank body 1 to a certain height above the ground, so that the bottom of the treatment tank body 1 can form a space for the installation, discharge, and maintenance of the collection platform 46, discharge pipe, and electronic valve 47. Through the cooperation between the treatment tank body 1 and the support frame 2, the overall placement stability of the equipment can be improved, and the bottom surface of the treatment tank body 1 can be prevented from directly contacting the ground, facilitating the bottom discharge parts. The arrangement and maintenance of the treatment tank body 1 are as follows, and a control box can be installed on the outside of the treatment tank body 1 during actual use; the first isolation plate 3, the second isolation plate 4, the third isolation plate 5 and the fourth isolation plate 6 are fixedly installed in sequence inside the treatment tank body 1 along the wastewater flow direction to divide the internal space of the treatment tank body 1 and form a coarse filtration chamber 7, a first chemical mixing chamber 8, a second chemical mixing chamber 9, a purification chamber 10 and a fine filtration chamber 11 in sequence. The coarse filtration chamber 7 is used to intercept cloth scraps, thread ends, fibers and larger solid impurities in the dyeing and printing wastewater; the first chemical mixing chamber 8 is used to mix and react the wastewater with the first treatment agent; the second chemical mixing chamber 9 is used to continue to mix and react the wastewater that has undergone the first chemical treatment with the second treatment agent. The purification chamber 10 is used for the aggregation, sedimentation, and separation of flocculants in wastewater; the fine filtration chamber 11 is used to further remove residual fine particles, color, and odor substances from the wastewater. Through the cooperation between the partition plates and the treatment chambers, the wastewater can flow continuously in the order of coarse filtration, primary dosing, secondary dosing, flocculation purification, and fine filtration, preventing untreated wastewater from bypassing the corresponding treatment area and being discharged directly from the outlet platform 13; the first flow channels at the lower ends of the first partition plate 3, the second partition plate 4, and the third partition plate 5 are used to connect adjacent treatment chambers, allowing wastewater in the previous treatment chamber to flow from the bottom into the next treatment chamber; the second flow channel at the upper end of the fourth partition plate 6 is used to allow the relatively clarified wastewater in the upper part of the purification chamber 10 to flow into the next treatment chamber. Water flows into the fine filtration chamber 11. The staggered arrangement of the first and second flow channels creates a vertical flow path within the main body 1 of the treatment tank, extending the flow distance and residence time of the wastewater in different treatment chambers. (A further configuration involves an electric gate installed on the fourth isolation plate 6 at the second flow channel to control its opening and closing. The electric gate, the second liquid supply pump 43, the pH sensor 51, and the turbidity sensor 52 are electrically connected to the control box. When the detection results in the purification chamber 10 do not meet the preset treatment conditions, the control box controls the electric gate to close and starts the second liquid supply pump 43. When the detection results meet the preset treatment conditions, the control box stops the second liquid supply pump 43 and controls the electric gate to open.)Meanwhile, the second flow channel on the upper part of the fourth isolation plate 6 can reduce the amount of flocculent material deposited at the bottom of the purification chamber 10 entering the fine filtration chamber 11, thus reducing the filtration burden on the filter cotton 49 and activated carbon 50; the inlet platform 12 is connected to the coarse filtration chamber 7 and is used to introduce the dyeing and printing wastewater generated by the garment factory into the treatment tank body 1; the outlet platform 13 is connected to the fine filtration chamber 11 and is used to discharge the wastewater after multi-stage treatment (an outlet solenoid valve is installed on the outlet platform 13 and is electrically connected to the control box). The inlet platform 12 is located above one side of the treatment tank body 1 so that the incoming wastewater can first fall onto the filter screen 15, and the outlet platform 13 is located below the other side of the treatment tank body 1 so that the wastewater after being treated by the filter cotton 49 and activated carbon 50 can be discharged smoothly. Through the cooperation between the inlet platform 12, each treatment chamber and the outlet platform 13, a continuous treatment channel from the inlet end to the outlet end is formed inside the treatment tank body 1. Example 2: The technical solution is basically the same as that of Example 1, except that, as Figure 2 , Figure 4 , Figure 6 , Figure 7 , Figure 9 , Figure 10 and Figure 11As shown, the positioning frame 14 is tilted and fixed on both sides of the inner wall above the coarse filtration chamber 7, used to install and support the filter screen 15, so that the filter screen 15 is tilted relative to the horizontal plane; the filter screen 15 is used to coarsely filter the dyeing wastewater entering from the liquid inlet platform 12, so that the wastewater passes through the filter screen 15 and enters the lower part of the coarse filtration chamber 7, and traps cloth scraps, fibers, lint, thread ends and larger particulate impurities in the wastewater on the surface of the filter screen 15. Through the cooperation between the positioning frame 14 and the filter screen 15, the filter screen 15 can not only perform solid-liquid separation of wastewater, but also use its tilted state to guide the trapped impurities under the action of gravity and the thrust of the subsequent cleaning block 20. The filter moves towards the drain trough to reduce the accumulation of impurities in the middle of the filter screen 15, which could cause clogging of the filter holes. The first drive groove, horizontally opened inside the positioning frame 14, is used to install the rotating column 16 and the first bevel gear 17. The second drive groove, vertically opened inside the positioning frame 14, is used to install the lead screw 18, the second bevel gear 19, and the cleaning block 20. The first drive groove and the second drive groove are interconnected to form a connecting area for the first bevel gear 17 and the second bevel gear 19 to mesh. A limiting groove on one side of the positioning frame 14 communicates with the second drive groove to slide and limit the cleaning block 20, allowing it to move along the inclined direction of the positioning frame 14 while preventing the cleaning block 20 from moving with the lead screw 18. The rod 18 rotates synchronously. Through the cooperation between the first drive groove, the second drive groove, and the limiting groove, the cleaning drive parts can be integrated inside the positioning frame 14, reducing the occupation of the filter area by the drive parts. The first servo motor 22 is fixed on the outside of the processing box body 1 to provide power for the cleaning process of the filter screen 15. The protective box is fitted on the outside of the first servo motor 22 to reduce the impact of wastewater splashing, humid gas, and corrosive substances on the first servo motor 22. The output end of the first servo motor 22 is connected to the rotating column 16 through a coupling. The rotating column 16 is rotatably installed in the first drive groove, and the first bevel gear 17 is fixed to one end of the rotating column 16. The rod 18 is rotatably installed in the second drive groove. The second bevel gear 19 is fixed to the end of the lead screw 18 near the first bevel gear 17 and meshes with the first bevel gear 17. After the first servo motor 22 is started, it drives the rotating column 16 to rotate. The rotating column 16 drives the first bevel gear 17 to rotate synchronously. The first bevel gear 17, through meshing with the second bevel gear 19, transmits the lateral rotational power of the rotating column 16 to the longitudinally arranged lead screw 18, so that the lead screw 18 rotates around its own axis. The cleaning block 20 is threaded to the outside of the lead screw 18 and is restricted by the second drive groove and the limiting groove, so that the cleaning block 20 cannot rotate with the lead screw 18, but can only move back and forth along the axial direction of the lead screw 18. Through the cooperation of the first servo motor 22, rotating column 16, first bevel gear 17, second bevel gear 19, lead screw 18, and cleaning block 20, the rotational motion output by the first servo motor 22 can be converted into linear motion of the cleaning block 20 along the inclined direction of the filter screen 15, realizing automatic reciprocating cleaning of the cleaning block 20. Two relatively distributed cleaning platforms are provided on the cleaning block 20, with the ends of the two platforms respectively attached to the two inclined surfaces of the filter screen 15, allowing the cleaning block 20 to clean both the upper and lower surfaces of the filter screen 15 simultaneously as it moves. Chamfers on the cleaning platforms are used to abut and scrape the surface of the filter screen 15, removing impurities attached to or embedded near the filter holes. Collection troughs on the cleaning platforms collect fibers, cloth scraps, and sludge scraped off by the chamfers, and push the impurities along with the cleaning block 20 to the vicinity of the drain trough. The two cleaning blocks 20 are staggered downwards, with the upper cleaning block 20 scraping first, followed by the lower one. The cleaning block 20 scrapes backwards; through the cooperation between the two cleaning platforms, the chamfer, and the collection tank, both surfaces of the filter screen 15 can be scraped and impurities collected simultaneously, reducing the problem of only cleaning one side of the filter screen 15 while the other side remains blocked; the first corrugated sleeve 21 is fixed to the front and rear faces of the cleaning block 20 along the moving direction, and extends along the inclined direction of the positioning frame 14; when the cleaning block 20 moves along the lead screw 18, one of the first corrugated sleeves 21 is compressed and the other first corrugated sleeve 21 is stretched, so that the first corrugated sleeve 21 always covers the second drive groove and the outside of the lead screw 18; through the cooperation between the first corrugated sleeve 21 and the cleaning block 20, the positioning frame 14 and the lead screw 18, the entry of wastewater, fiber and particulate impurities into the second drive groove can be reduced without hindering the reciprocating movement of the cleaning block 20, avoiding impurities from wrapping around the lead screw 18 or blocking the thread gap of the lead screw 18, and reducing the corrosive effect of dyeing wastewater on the lead screw 18.

[0021] Example 3: The technical solution is basically the same as that of Example 1, except that, as Figure 2 , Figure 4 , Figure 6 , Figure 7 , Figure 9 , Figure 10 and Figure 11As shown, U-shaped slots 23 are formed inside the two cleaning stations, and the two open ends of the U-shaped slots 23 are respectively connected to the collection tanks of the corresponding cleaning stations to form internal channels for the cleaning liquid to flow into the collection tanks; the support platform 25 is fixed to the open end of the U-shaped slots 23 and allows the cleaning liquid to pass through through multiple fan-shaped slots; one-way balls 26 are movably disposed between the support platform 25 and the one-way platform 24. The one-way platform 24 is used to limit the movement range of the one-way balls 26 and prevent the two one-way balls 26 from getting close to each other or interfering with each other inside the U-shaped slots 23. After the cleaning liquid enters the U-shaped slots 23, it pushes the one-way balls 26 at the corresponding positions away from the support platform 25 under the action of the cleaning liquid pressure, so that the support platform 25... The fan-shaped groove on 5 remains connected, allowing the cleaning fluid to enter the collection tank through the fan-shaped groove. When sewage or impurities in the collection tank tend to flow in the opposite direction to the U-shaped groove 23, the one-way ball 26 can approach the support platform 25 under the action of reverse pressure, restricting the corresponding channel. Through the cooperation between the U-shaped groove 23, the one-way platform 24, the support platform 25, and the one-way ball 26, the cleaning fluid can be guided from the inside of the cleaning platform to the filter screen 15, while reducing the reverse entry of sewage and impurities into the cleaning fluid supply pipeline. The cleaning hose 34 adopts a Y-shaped structure, with its two branches connected to the connecting holes inside the two cleaning platforms, which are used to simultaneously deliver cleaning fluid to the cleaning platforms on both sides of the filter screen 15. The other end of the cleaning hose 34 is connected to the outlet of the first liquid supply pump 35. The inlet of the first liquid supply pump 35 is connected to the collection tank 37 through the inlet hose 36. The collection tank 37 is used to store the cleaning liquid used in the cleaning process of the filter screen 15. After the first liquid supply pump 35 is started, it draws the cleaning liquid from the collection tank 37 through the inlet hose 36 and delivers the cleaning liquid to the cleaning hose 34. After being split by a Y-shaped flow, the cleaning liquid enters the U-shaped slots 23 in the two cleaning platforms respectively, and then flows from the fan-shaped slots on the support platform 25 to the collection tank and the surface of the filter screen 15. Through the cooperation between the collection tank 37, the inlet hose 36, the first liquid supply pump 35, the cleaning hose 34, the U-shaped slots 23 and the collection tank, the filter screen 15 can be mechanically scraped off by the cleaning block 20, thereby forming a mechanical scraping method, which makes it easier for the highly adhesive dye sludge and fiber impurities to detach from the surface of the filter screen 15.

[0022] Example 4: The technical solution is basically the same as that of Example 1, except that, as Figure 2 , Figure 6 , Figure 9 and Figure 11As shown, the limiting platform 27 is fixed to the inner wall of the coarse filtration chamber 7 near the drain tank. The connecting groove in the middle of the limiting platform 27 is used for the cleaning platform on the cleaning block 20 to slide through. The U-shaped limiting blocks on both sides of the limiting platform 27 along the inclined direction are used to slide with the guide blocks on the cleaning platform. When the cleaning block 20 gradually approaches the drain tank, the guide blocks on the cleaning platform enter the U-shaped limiting blocks, so that the cleaning block 20 continues to move in the limited direction, avoiding the cleaning block 20 from tilting due to the resistance of impurities, and ensuring that the cleaning platform can move accurately to the drain position. The metal plate 53 is set on the limiting platform 27. The detection slot of the positioning platform 27 is used to detect whether the cleaning platform has moved to the set position; the electromagnetic block 29 is installed in the locking slots on both sides of the sewage tank, which is used to attract or lock the isolation platform 28 when the equipment is filtering normally, so that the isolation platform 28 is kept in the position of closing the sewage tank. When the cleaning block 20 moves to the limiting platform 27 and the metal plate 53 detects that the cleaning platform is in place, the metal plate 53 transmits the arrival signal to the control box. The control box controls the first servo motor 22 to stop running in the forward direction and controls the electromagnetic block 29 to be de-energized. At the same time, the first liquid supply pump 35 is started to supply cleaning liquid to the cleaning platform. Through the cooperation of the limiting platform 27, guide block, metal platen 53, electromagnetic block 29 and first liquid supply pump 35, the mechanical positioning action of cleaning block 20 can be converted into the unlocking action of sewage discharge structure and the supply action of cleaning liquid, so that the scraping, rinsing and sewage discharge processes of filter screen 15 are connected in sequence; the isolation platform 28 is slidably installed in the sewage discharge tank of the treatment box body 1 to control the opening and closing of the sewage discharge tank; the sewage discharge pipe 30 is installed on the outside of the sewage discharge tank and aligned with the sewage discharge tank to discharge the impurities and cleaning waste liquid cleaned from the filter screen 15 to the treatment box body 1; The fixed plate 31 is fixed inside the drain pipe 30 to provide a mounting base for the second corrugated sleeve 32 and the damping spring 33. One end of the damping spring 33 is connected to the fixed plate 31, and the other end is connected to the isolation platform 28 to apply an elastic restoring force towards the drain trough to the isolation platform 28. When the electromagnetic block 29 is energized, the isolation platform 28 is confined within the drain trough, keeping the drain trough closed and preventing wastewater in the coarse filtration chamber 7 from leaking from the drain pipe 30 during normal filtration. When the cleaning platform is in place and the electromagnetic block 29 is de-energized, the impurities pushed by the cleaning block 20 and the first supply... The cleaning fluid delivered by the liquid pump 35 acts on the isolation platform 28, causing the isolation platform 28 to slide towards the drain pipe 30 and compress the damping spring 33, thereby opening the drain tank and allowing impurities and cleaning waste fluid to be discharged through the drain pipe 30. After the drain is completed, the first liquid supply pump 35 stops supplying liquid, the first servo motor 22 runs in reverse and drives the cleaning block 20 away from the drain position, the thrust acting on the isolation platform 28 decreases, the damping spring 33 releases elastic potential energy and pushes the isolation platform 28 back into the drain tank, and then the electromagnetic block 29 is re-energized to fix the isolation platform 28. The second corrugated sleeve 32 is positioned between the fixed plate 31 and the isolation platform 28, and is fitted over the damping spring 33. When the isolation platform 28 moves, the second corrugated sleeve 32 can extend and retract synchronously with the isolation platform 28, thereby shielding and protecting the damping spring 33. Through the cooperation between the isolation platform 28, the electromagnetic block 29, the sewage pipe 30, the fixed plate 31, the second corrugated sleeve 32, and the damping spring 33, the controlled opening, buffered movement, and automatic reset of the sewage trough can be achieved, and the entry of sludge and fibers into the gap of the damping spring 33 can be reduced, thus affecting the normal reset of the isolation platform 28.

[0023] Example 5: The technical solution is basically the same as that of Example 1, except that, as Figure 2 , Figure 5 and Figure 8As shown, a circulation cylinder 54 is installed in the first mixing chamber 8 and the second mixing chamber 9 respectively. The circulation cylinder 54 is used to restrict and guide the circulation flow direction of the wastewater. The cross-section of the circulation cylinder 54 has a hyperbolic structure, which makes the flow section in the middle of the circulation cylinder 54 relatively smaller. When the wastewater flows through the middle of the circulation cylinder 54, it can increase the local flow velocity and form water exchange in the upper, lower and outer areas of the circulation cylinder 54. Through the graded arrangement of the first mixing chamber 8 and the second mixing chamber 9, different types or different action stages of the agents can be added to the wastewater in sequence, avoiding the direct mixing of multiple agents before they have fully contacted the wastewater, which would cause mutual consumption of the agents. The second servo motor 38 is installed on the top surface of the treatment tank body 1, and its output end is connected to the main body 1. The shaft is connected to the stirring roller 39 to drive the stirring roller 39 to rotate. The stirring roller 39 is vertically arranged in the middle of the circulation cylinder 54 to circumferentially stir the wastewater inside the circulation cylinder 54. The impeller fixed at the lower end of the stirring roller 39 applies axial thrust to the wastewater during rotation, enabling the wastewater to flow upward or downward inside the circulation cylinder 54 and form a circulation exchange with the wastewater outside the circulation cylinder 54. When the second servo motor 38 drives the stirring roller 39 and the impeller to rotate synchronously, the stirring roller 39 causes the wastewater to form a circumferential swirling flow, and the impeller causes the wastewater to form an axial flow. The hyperbolic structure of the circulation cylinder 54 converges and guides the water flow, thereby forming a continuous circulation of wastewater inside and outside the circulation cylinder 54. The coordination between the machine 38, stirring roller 39, impeller, and circulation cylinder 54 reduces the static area and dead zone inside the mixing chamber, increasing the contact range between the agent and the wastewater. The annular dosing pipe 40 is fitted inside the circulation cylinder 54 at the top and bottom, respectively, for adding the treatment agent to the wastewater from different heights. Multiple dosing holes evenly spaced on the annular dosing pipe 40 disperse the agent around the circumference of the circulation cylinder 54, preventing the agent from concentrating in a single location and creating areas of excessively high local agent concentration. The agent output from the annular dosing pipe 40, upon entering the circulation cylinder 54, is immediately subjected to the combined action of the stirring roller 39, impeller, and circulating water flow, causing the agent to diffuse from inside the circulation cylinder 54 throughout the entire mixing chamber. Through the upper and lower... The combination of two annular dosing pipes 40, circulation cylinder 54, stirring roller 39, and impeller can form a mixing method that combines multi-point dosing, circumferential stirring, axial pushing, and vertical circulation, thereby improving the uniformity of drug dispersion in dyeing and printing wastewater. The isolation frame 41 is fixed above the inner wall of the purification chamber 10 and is used to install and support multiple packing plates 42, so that the adjacent packing plates 42 maintain a stable interval. The multiple packing plates 42 are equidistantly inclined to form multiple inclined wastewater flow channels inside the purification chamber 10. After the wastewater undergoes the dosing reaction in the first mixing chamber 8 and the second mixing chamber 9, it enters the purification chamber 10. The suspended solids, colloidal particles, and dye pollutants in the wastewater form flocculants under the action of the drugs.When wastewater flows through the channels between the packing plates 42, smaller flocs collide with each other and aggregate to form larger flocs. These larger flocs slide down the inclined packing plates 42 under gravity. The cooperation between the isolation frame 41 and the packing plates 42 increases the effective settling area inside the purification chamber 10, shortens the vertical settling distance of the flocs, and reduces the disturbance caused by the rising water flow to the settling flocs, allowing for faster separation of wastewater and flocs. A second liquid supply pump 43 is installed on the top surface of the treatment tank body 1, with its inlet end connected to the first circulation hose 44. The other end of the first circulation hose 44 is connected to the purification chamber 10 and located above the packing plates 42, used to extract liquid from the purification chamber. Wastewater in the upper part of the purification chamber 10; the outlet of the second liquid supply pump 43 is connected to the second circulation hose 45, and the other end of the second circulation hose 45 is connected to the lower part of the first chemical mixing chamber 8, which is used to transport the extracted wastewater back to the first chemical mixing chamber 8. When the wastewater in the purification chamber 10 needs to be purified again, the second liquid supply pump 43 extracts the wastewater above the packing plate 42 through the first circulation hose 44, and sends the wastewater back to the lower part of the first chemical mixing chamber 8 through the second circulation hose 45; after the return wastewater enters from the lower part of the first chemical mixing chamber 8, it is remixed with the agent under the action of the circulation cylinder 54, the stirring roller 39 and the impeller, and passes through the second chemical mixing chamber 9 and the purification chamber 10 in sequence to complete the re-treatment; Through the coordination of the second liquid supply pump 43, the first circulation hose 44, the second circulation hose 45, the first chemical mixing chamber 8, the second chemical mixing chamber 9, and the purification chamber 10, a wastewater recycling and reprocessing channel can be formed, increasing the number of reactions between the difficult-to-treat dyeing and printing wastewater and the chemicals, and improving the degree of purification. The collection platform 46 is installed in the mounting groove below the purification chamber 10 to receive the flocculants that slide off the packing plate 42 and naturally settle in the purification chamber 10, and to concentrate the flocculants towards the discharge pipe at the bottom of the collection platform 46. The electronic valve 47 is installed... Installed on the discharge pipe, it is used to control the opening and closing of the discharge pipe. During the purification process, the electronic valve 47 remains closed, so that the purification chamber 10 maintains a normal liquid storage state. When a certain amount of flocculents accumulate in the collection platform 46, the electronic valve 47 is opened, and the flocculents can be discharged from the discharge pipe under the action of gravity and liquid pressure. Through the cooperation between the packing plate 42, the collection platform 46, the discharge pipe and the electronic valve 47, the flocculents separated from the wastewater can be collected centrally and discharged periodically, reducing the long-term accumulation of flocculents at the bottom of the purification chamber 10.

[0024] Example 6: The technical solution is basically the same as that of Example 1, except that, as Figure 1 and Figure 2As shown, the limiting cover 48 has a porous structure and is installed in the fine filtration chamber 11 to respectively accommodate and limit the filter cotton 49 and activated carbon 50. The holes on the limiting cover 48 allow wastewater to pass through, while preventing the filter cotton 49 from curling or drifting after being impacted by the water flow, and also preventing the activated carbon 50 from scattering into the fine filtration chamber 11 or entering the outlet platform 13. The filter cotton 49 is used to intercept the fine flocs, fibers and suspended particles remaining in the wastewater flowing from the purification chamber 10 into the fine filtration chamber 11. The activated carbon 50 is placed in the fine filtration chamber 11. The subsequent flow position of filter cotton 49 is used to adsorb residual dye molecules, odors, and some dissolved organic pollutants in wastewater. Through the cooperation between the limiting cover 48, filter cotton 49, and activated carbon 50, the wastewater first passes through filter cotton 49 to intercept fine solid impurities, and then passes through activated carbon 50 for further adsorption and purification. This avoids a large number of particles directly covering the pores of activated carbon 50, thereby improving the fine filtration effect and extending the service life of activated carbon 50; coarse filtration chamber 7, first chemical mixing chamber 8, and second chemical mixing chamber 9. The pH sensor 51 installed in the purification chamber 10 and the fine filtration chamber 11 is used to detect the acidity and alkalinity of wastewater at different treatment stages, and the turbidity sensor 52 is used to detect the suspended particle content and turbidity of wastewater at different treatment stages. Each pH sensor 51 and turbidity sensor 52 can transmit the detection information to the control box outside the main body of the treatment tank 1, so that the operator or the control system can judge whether the coarse filtration, chemical reaction, flocculation sedimentation and fine filtration processes have met the corresponding requirements. Through the cooperation between the pH sensor 51 and turbidity sensor 52 installed in different treatment chambers, the wastewater can be continuously detected at different treatment stages from inlet to outlet, and the operation status of the corresponding treatment structure can be judged according to the changes in the detection data of adjacent treatment chambers. When the detection result in the purification chamber 10 does not meet the predetermined treatment requirements, the second liquid supply pump 43 can be started to transport the wastewater back to the first chemical mixing chamber 8 for re-treatment. When the wastewater in the fine filtration chamber 11 meets the treatment requirements, it is discharged through the outlet platform 13, thereby improving the stability of the dyeing and printing wastewater treatment quality.

[0025] Working principle: In this embodiment, the present invention also proposes a method for using a garment dyeing and printing wastewater treatment device, including the following steps: Step 1: Before using the equipment, connect the control box on the outside of the main body 1 of the processing box to the external power supply, so that the first servo motor 22, the second servo motor 38, the first liquid supply pump 35, the second liquid supply pump 43, the electromagnetic block 29, the electronic valve 47, the pH sensor 51, the turbidity sensor 52, and the metal plate 53 are electrically connected to the control box. After the power is turned on, perform initialization tests on each electrical component through the control box to confirm that the first servo motor 22 and the second servo motor 38 can run normally in forward and reverse directions, the first liquid supply pump 35 and the second liquid supply pump 43 can start and stop normally, and the pH sensor 51 and the turbidity sensor 52 can output detection signals normally. When the equipment is in its initial state, the first servo motor 22 remains stopped, so that the cleaning block 20 is located at the end of the filter screen 15 away from the drain tank; the electromagnetic block 29 remains energized, adsorbing and locking the isolation platform 28, so that the isolation platform 28 seals the drain tank on the main body of the treatment box 1; the damping spring 33 is in a naturally extended or pre-compressed state, and the electronic valve 47 remains closed to prevent wastewater or sediment in the purification chamber 10 from being discharged prematurely through the discharge pipe; at the same time, sufficient cleaning liquid is added to the collection box 37, and the liquid inlet end of the annular dosing pipe 40 in the first chemical mixing chamber 8 and the second chemical mixing chamber 9 is connected to the external dosing device respectively. The external dosing device can deliver the corresponding treatment agent to the two chemical mixing chambers according to the actual composition of the dyeing wastewater, so that the wastewater can be treated according to the preset dosing sequence; Step two: After completing the equipment inspection, the dyeing and printing wastewater to be treated is transported to the main body 1 of the treatment tank through the inlet platform 12. Since the inlet platform 12 is connected to the coarse filtration chamber 7, the wastewater first flows to the inclined filter screen 15 after entering through the inlet platform 12. The wastewater passes through the filter holes on the filter screen 15 and enters the lower part of the coarse filtration chamber 7. Fabric scraps, fibers, thread ends, lint, and larger solid particles in the wastewater are trapped on the surface of the filter screen 15, thus completing the primary solid-liquid separation of the wastewater. The positioning frame 14 fixes and supports the filter screen 15 and keeps the filter screen 15 in an inclined state. The impurities trapped by the filter screen 15 move towards the lower end of the filter screen 15 under the impact of water flow and gravity. The flowing trend can reduce the concentration of impurities at the inlet. After coarse filtration, the wastewater accumulates in the coarse filtration chamber 7 and enters the first chemical mixing chamber 8 through the first flow channel at the lower end of the first isolation plate 3. Since the first flow channel is located at the lower part of the first isolation plate 3, the wastewater enters the first chemical mixing chamber 8 from the lower part of the coarse filtration chamber 7, which can prolong the flow path of the wastewater in the coarse filtration chamber 7, allowing heavier particulate impurities to settle further. During the coarse filtration process, the pH sensor 51 and turbidity sensor 52 in the coarse filtration chamber 7 detect the acidity / alkalinity and initial turbidity of the wastewater entering the equipment, respectively, and transmit the detection results to the control box, providing a basis for determining the subsequent dosage of reagents and treatment time. Step 3: After the wastewater enters the first mixing chamber 8 through the first flow channel at the lower end of the first isolation plate 3, the corresponding second servo motor 38 is started. The second servo motor 38 drives the stirring roller 39 to rotate through the coupling. The stirring roller 39 drives the impeller at its lower end to rotate synchronously. When the stirring roller 39 rotates, it applies a circumferential stirring action to the wastewater in the first mixing chamber 8, causing the wastewater to form a rotating flow around the stirring roller 39. When the impeller rotates, it applies an axial pushing action to the wastewater, causing the wastewater in the circulation cylinder 54 to flow vertically. Since the flow cross-section in the middle of the circulation cylinder 54 is relatively reduced, the flow velocity of the wastewater increases when it flows through the middle of the circulation cylinder 54, and it flows out from one end of the circulation cylinder 54 and flows back along the outside of the circulation cylinder 54, thus forming a continuous circulating water flow inside and outside the circulation cylinder 54. Through the cooperation between the stirring roller 39, the impeller and the circulation cylinder 54, the wastewater in the first mixing chamber 8 forms a composite flow state combining circumferential swirling flow and vertical circulating flow. During the circulation process, the external dosing device delivers the first treatment agent to the annular dosing pipe 40 in the first mixing chamber 8. The first treatment agent can be selected as a pH adjusting agent, decolorizing agent, or coagulant agent according to the wastewater properties. After the agent enters the annular dosing pipe 40, it is dispersed into the wastewater from the upper and lower parts of the circulation cylinder 54 through multiple dosing holes that are equidistantly arranged on the annular dosing pipe 40. The agents output from different heights and different circumferential positions are immediately driven by the stirring roller 39, impeller, and circulating water flow, and quickly diffuse into the first mixing chamber 8 to avoid the agent being concentrated in a local area. The pH sensor 51 and turbidity sensor 52 in the first mixing chamber 8 monitor the wastewater after the first dosing in real time. When the pH value does not enter the set range or the turbidity change does not meet the predetermined requirements, the running time of the second servo motor 38 can be extended, and the dosage of the first treatment agent can be adjusted according to the detection results until the wastewater reaches the state required for the next treatment stage. Step four: After the first dosing and mixing of wastewater, it enters the second mixing chamber 9 through the first flow channel at the lower end of the second isolation plate 4. The second servo motor 38 in the second mixing chamber 9 starts synchronously or with a delay, driving the corresponding stirring roller 39 and impeller to rotate. This causes the wastewater to form a circumferential swirling flow and vertical circulation again in the circulation cylinder 54 of the second mixing chamber 9. The external dosing device delivers the second treatment agent to the annular dosing pipe 40 in the second mixing chamber 9. The second treatment agent can be a flocculant or coagulant aid that works in conjunction with the first treatment agent. The specific agent type is determined according to the treatment process of the dyeing and printing wastewater. After the second treatment agent is dispersed into the wastewater through multiple dosing holes on the annular dosing pipe 40, it circulates in the wastewater through the stirring roller 39, impeller, and circulation cylinder 54. Under the action of the flow, the tiny suspended particles, colloidal substances, and some dye pollutants in the wastewater lose their original stable state and gradually combine to form flocs. The first mixing chamber 8 and the second mixing chamber 9 adopt a staged dosing method, so that different agents are fully mixed with the wastewater in their respective chambers, avoiding mutual consumption caused by the simultaneous addition of different agents, and providing corresponding reaction time for different agents. The pH sensor 51 and turbidity sensor 52 in the second mixing chamber 9 detect the wastewater after the second dosing. The control box or operator can adjust the stirring time of the second servo motor 38 and the dosage of the second treatment agent according to the detection results, so that the flocs in the wastewater reach a state suitable for subsequent sedimentation and separation. Step 5: After two stages of chemical mixing, the wastewater enters the purification chamber 10 through the first flow channel at the lower end of the third isolation plate 5. After entering the purification chamber 10 from the bottom, the wastewater gradually flows upwards and enters between multiple packing plates 42 supported by the isolation frame 41. The multiple packing plates 42 are equidistantly inclined, forming multiple inclined flow channels between adjacent packing plates 42. When the wastewater flows between the packing plates 42, the water flow is dispersed into multiple relatively thin flow layers, allowing the flocs in the wastewater to contact the surface of the packing plates 42 and other flocs. Smaller flocs further aggregate into larger flocs during contact and collision. As the volume and weight of the flocs increase, the flocs... Under the influence of gravity, the flocculated material slides down the inclined packing plate 42 and gradually settles into the collection platform 46 at the bottom of the purification chamber 10. The packing plate 42 can increase the effective settling area in the purification chamber 10 and shorten the vertical settling distance of the flocculated material. The wastewater flows upward from between the packing plates 42, while the flocculated material slides down along the packing plate 42. The two form relative motion, thereby improving the separation efficiency of wastewater and flocculated material. The settled flocculated material is concentrated into the collection platform 46, which collects the flocculated material and makes it gradually concentrate towards the bottom discharge pipe. During the purification process, the electronic valve 47 remains closed to ensure a stable treatment liquid level in the purification chamber 10. Step Six: The pH sensor 51 and turbidity sensor 52 in the purification chamber 10 continuously monitor the wastewater after flocculation and sedimentation. When the detection results meet the preset treatment conditions, the second liquid supply pump 43 remains stopped, allowing the relatively clear wastewater in the upper part of the purification chamber 10 to continue entering the fine filtration chamber 11. When the pH value or turbidity in the purification chamber 10 still does not meet the preset treatment conditions, the control box starts the second liquid supply pump 43. The second liquid supply pump 43 draws the wastewater above the packing plate 42 in the purification chamber 10 through the first circulation hose 44 and transports the wastewater back to the lower part of the first chemical mixing chamber 8 through the second circulation hose 45. The first circulation hose 44 draws wastewater from above the packing plate 42, which can reduce the re-inhalation of the flocculent material that has settled at the bottom of the purification chamber 10 into the circulation pipeline. The second circulation hose 45 sends the wastewater into the lower part of the first mixing chamber 8, so that the returned wastewater can pass through the circulation cylinder 54, stirring roller 39 and annular dosing pipe 40 in the first mixing chamber 8 again, and then pass through the second mixing chamber 9 and the purification chamber 10 in sequence. The returned wastewater completes the first dosing and mixing, the second dosing and mixing and the packing plate sedimentation treatment again, increasing the number of contact times between the wastewater and the treatment agent, so that the suspended solids, colloidal substances and dye pollutants that are not fully removed after the first treatment can continue to undergo coagulation and flocculation reactions. The second liquid supply pump 43 continues to run until the detection result in the purification chamber 10 reaches the preset condition and then stops, thus forming a working process of circulating and re-treating the wastewater according to the actual treatment state, avoiding the wastewater that is not fully treated from directly entering the fine filtration chamber 11; Step 7: The upper layer of wastewater in the purification chamber 10, having met the treatment requirements, continues to rise and enters the fine filtration chamber 11 through the second flow channel at the upper end of the fourth isolation plate 6. The second flow channel of the fourth isolation plate 6 is located at the top, ensuring that the wastewater entering the fine filtration chamber 11 is primarily the relatively clear wastewater from the upper layer of the purification chamber 10, reducing the amount of flocculent material at the bottom of the purification chamber 10 entering the fine filtration chamber 11 with the water flow. After entering the fine filtration chamber 11, the wastewater first flows through the filter cotton 49 installed inside the limiting cover 48. The filter cotton 49 intercepts residual fine flocculent material, fibers, and suspended particles in the wastewater, completing further solid impurity filtration. The wastewater treated by the filter cotton 49 continues to flow to the activated carbon 50. The activated carbon 50 utilizes its internal porous adsorption structure to remove residual dye molecules, odor substances, and some soluble pollutants from the wastewater. Organic pollutants are adsorbed and purified. The porous structure of the limiting cover 48 allows wastewater to pass through while restricting the filter cotton 49 and activated carbon 50. This prevents the filter cotton 49 from drifting or curling under the action of water flow and prevents the granular activated carbon 50 from scattering into the fine filtration chamber 11. The pH sensor 51 and turbidity sensor 52 in the fine filtration chamber 11 detect the wastewater after final treatment. When the detection result meets the preset discharge requirements, the liquid outlet platform 13 connected to the fine filtration chamber 11 is opened to allow the treated wastewater to be discharged from the treatment tank body 1 for subsequent discharge, reuse, or further treatment. When the detection result does not meet the preset requirements, the drainage from the liquid outlet platform 13 can be temporarily suspended, and the contact time of the activated carbon 50 can be extended according to the actual situation, or the substandard wastewater can be reintroduced into the front-end treatment process until the detection result meets the requirements. Step 8: During equipment operation, the filter screen 15 continuously traps cloth scraps, fibers, and other impurities. When the filter screen 15 reaches the preset working time, or when changes in the liquid level, flow rate, or turbidity in the coarse filtration chamber 7 indicate that the filter screen 15 may be clogged, temporarily stop or reduce the wastewater input to the inlet platform 12 (or keep the power on and start the first servo motor 22). Start the first servo motor 22 through the control box. The first servo motor 22 drives the rotating column 16 to rotate through the coupling. The rotating column 16 drives the first bevel gear 17 to rotate synchronously. The first bevel gear 17, through meshing with the second bevel gear 19, transmits the lateral rotational power of the rotating column 16 to the longitudinally arranged lead screw 18, causing the lead screw 18 to rotate around its own axis. The cleaning block 20 is threadedly connected to the lead screw 18 and is restricted by the second drive groove and the limit groove, preventing the cleaning block 20 from... It can rotate with the lead screw 18 and can only move along the axial direction of the lead screw 18 towards the drain trough. The two cleaning platforms on the cleaning block 20 are respectively attached to the two inclined surfaces of the filter screen 15. During the movement of the cleaning block 20, the chamfers on the cleaning platform scrape the two surfaces of the filter screen 15, scraping off the fibers, cloth scraps and sludge attached to the surface of the filter screen 15 and near the filter holes. The scraped-off impurities enter the collection trough on the cleaning platform and are concentratedly transported to the drain trough along the inclined direction of the filter screen 15 under the continuous movement of the cleaning block 20. Through the synchronous movement of the two cleaning platforms, the upper and lower surfaces of the filter screen 15 can be cleaned at the same time. When the cleaning block 20 moves, the first corrugated sleeves 21 at its front and rear ends are compressed and extended respectively, so that the first corrugated sleeves 21 always cover the second drive groove and the lead screw 18, reducing the amount of wastewater and fiber impurities entering the thread gap of the lead screw 18. Step nine: When the cleaning block 20 approaches the drain tank, the guide block on the cleaning platform enters the U-shaped limiting blocks on both sides of the limiting platform 27, causing the cleaning block 20 to move in the limited direction and preventing it from tilting. When the cleaning platform moves to the set drain position, the metal plate 53 detects that the cleaning platform is in place and transmits the detection signal to the control box. The control box controls the first servo motor 22 to stop running forward, and simultaneously controls the solenoid block 29 to be de-energized, releasing the solenoid block 29 from locking the isolation platform 28, and starting the first liquid supply pump 35. The first liquid supply pump 35 draws cleaning fluid from the collection tank 37 through the inlet hose 36 and delivers the cleaning fluid to the Y-shaped cleaning hose 34. The cleaning fluid passes through the cleaning... After the cleaning hose 34 is split, the cleaning fluid enters the U-shaped slots 23 in the two cleaning stations respectively. After the cleaning fluid enters the U-shaped slots 23, it pushes the one-way ball 26 away from the support platform 25 under the action of liquid pressure, causing the fan-shaped groove on the support platform 25 to open. The cleaning fluid enters the collection tank of the cleaning station through the fan-shaped groove, rinsing the impurities in the collection tank and the dye sludge remaining on the surface of the filter screen 15. When sewage or impurities tend to flow back into the U-shaped slots 23, the one-way ball 26 moves closer to the support platform 25 under the action of reverse pressure, blocking or restricting the corresponding opening, reducing the backflow of sewage and impurities into the cleaning hose 34 and the first liquid supply pump 35. The one-way platform 24 restricts the movement range of the one-way ball 26. To prevent interference between the two one-way balls 26, after the electromagnetic block 29 is de-energized, the isolation platform 28 loses its locking function. The cleaning fluid, impurities pushed to the drain tank position, and the forward force generated by the cleaning platform together push the isolation platform 28 to slide towards the drain pipe 30, causing the isolation platform 28 to compress the damping spring 33 and open the drain tank. The cloth scraps, fibers, sludge, and cleaning waste liquid cleaned off the filter screen 15 enter the drain pipe 30 through the drain tank and are discharged from the treatment box body 1 through the drain pipe 30. The damping spring 33 provides a buffering effect during the opening of the isolation platform 28 to prevent the isolation platform 28 from moving suddenly and generating a large impact. When the isolation platform 28 moves, the second corrugated sleeve 32 extends and retracts synchronously with the isolation platform 28. The damping spring 33 is shielded to reduce the entry of cleaning waste liquid and fiber impurities into the gap of the damping spring 33. After the sewage discharge is completed, the control box stops the first liquid supply pump 35 and controls the first servo motor 22 to run in reverse. The lead screw 18 rotates in reverse, so that the cleaning block 20 returns to the initial position along the filter screen 15. As the cleaning block 20 leaves the sewage discharge position, the thrust acting on the isolation platform 28 disappears, the damping spring 33 releases elastic potential energy, and pushes the isolation platform 28 back into the sewage discharge tank. After the isolation platform 28 is reset, the control box re-energizes the electromagnetic block 29 to lock the isolation platform 28, so that the sewage discharge tank returns to the closed state. Then the wastewater input of the liquid inlet platform 12 is restored, and the equipment continues to treat wastewater. Step 10: As the equipment continues to run, the flocculent material settled by the packing plate 42 gradually accumulates in the collection platform 46. When the equipment reaches the preset sludge discharge time, or when the flocculent material in the collection platform 46 reaches the level that needs to be discharged, the flow rate of wastewater entering the purification chamber 10 is stopped or reduced. The control box controls the electronic valve 47 to open, so that the flocculent material accumulated in the collection platform 46 is discharged from the treatment tank body 1 through the discharge pipe under its own gravity and the liquid pressure in the purification chamber 10. During the sludge discharge process, the second liquid supply pump 43 can be kept stopped to avoid large water flow disturbance in the purification chamber 10 and re-lifting the settled material. After the flocculent material is discharged, the control box controls the electronic valve 47 to close, so that the purification chamber 10 returns to the closed treatment state and wastewater flocculation and sedimentation are carried out again. Step 11: When the equipment needs to be stopped, first stop the supply of dyeing and printing wastewater to the treatment tank body 1 through the inlet platform 12, and keep the second servo motor 38 running for a short time to allow the remaining wastewater in the first mixing chamber 8 and the second mixing chamber 9 to continue mixing the chemicals. After the wastewater in the treatment tank body 1 has completed flocculation sedimentation and fine filtration in sequence, the treated wastewater is discharged through the outlet platform 13. Then, stop the two second servo motors 38 and the second supply pump 43. Depending on the amount of impurities attached to the surface of the filter screen 15, repeat the process of scraping the filter screen 15, rinsing with cleaning solution, and discharging wastewater. To ensure the filter screen 15 remains relatively clean after shutdown, preventing fibers and dye sludge from drying and solidifying on the surface of the filter screen 15, the electronic valve 47 is opened for the final sludge discharge based on the accumulation of flocculent material in the collection platform 46. After completion, the electronic valve 47 is closed. Once it is confirmed that the cleaning block 20 has returned to its initial position, the isolation platform 28 has been reset, the electromagnetic block 29 has locked the isolation platform 28, and the first liquid supply pump 35 and the second liquid supply pump 43 have all stopped running, the electrical components are stopped sequentially through the control box. Finally, the main power supply of the equipment is cut off, completing the shutdown operation of the entire dyeing and printing wastewater treatment and purification equipment.

[0026] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A garment dyeing wastewater treatment device, comprising a treatment tank body (1), and a support frame (2) for support is provided below the treatment tank body (1), characterized in that: The main body of the treatment tank (1) is provided with a cavity, and a set of isolation plates is provided in sequence along the water flow direction. The set of isolation plates includes a first isolation plate (3), a second isolation plate (4), a third isolation plate (5) and a fourth isolation plate (6). The set of isolation plates divides the main body of the treatment tank (1) into a coarse filtration chamber (7), a first drug mixing chamber (8), a second drug mixing chamber (9), a purification chamber (10) and a fine filtration chamber (11) along the water flow direction. An inlet platform (12) communicating with the coarse filtration chamber (7) is installed above the rear end of one side of the main body of the treatment tank (1), and an outlet platform (13) communicating with the fine filtration chamber (11) is installed below the front end of the other side. The coarse filtration chamber (7) is equipped with a filtration and cleaning assembly for filtering and cleaning large particulate impurities. The first drug mixing chamber (8) and the second drug mixing chamber (9) are equipped with a mixing assembly for improving the mixing of wastewater and drugs. The purification chamber (10) and the fine filtration chamber (11) are equipped with purification and filtration assemblies.

2. The garment dyeing and printing wastewater treatment device according to claim 1, characterized in that: The filter cleaning assembly includes a positioning frame (14) that is inclinedly installed on both sides of the inner wall above the coarse filter chamber (7). The positioning frame (14) has a square structure and a filter screen (15) is installed on the inner side. The front end and one side of the inner cavity of the positioning frame (14) are respectively provided with a first driving groove and a second driving groove in the horizontal direction and in the vertical direction. The first driving groove and the second driving groove are connected and form a connected area. A limiting groove that connects to the second driving groove is provided in the vertical direction on one side of the positioning frame (14).

3. The garment dyeing and printing wastewater treatment device according to claim 2, characterized in that: A rotating column (16) is rotatably connected in the first drive groove. A first bevel gear (17) is fixedly connected to one side of the rotating column (16) and placed in the communicating area. A lead screw (18) is rotatably connected in the second drive groove. A second bevel gear (19) is fixedly connected to the front end of the lead screw (18) and placed in the communicating area and meshing with the first bevel gear (17).

4. The garment dyeing and printing wastewater treatment device according to claim 3, characterized in that: The lead screw (18) is threadedly connected to a cleaning block (20) that is adapted to the second drive groove and the limiting groove. The front and rear ends of the cleaning block (20) are fixedly connected with a first corrugated sleeve (21) to prevent sewage from entering the second drive groove along the inclined square shape of the positioning frame (14). One end of the rotating column (16) passes through the positioning frame (14) and the treatment box body (1), and is connected to a first servo motor (22) placed outside the treatment box body (1) through a coupling. A protective box fixed to the outer wall of the treatment box body (1) is sleeved on the outside of the first servo motor (22).

5. The garment dyeing and printing wastewater treatment device according to claim 4, characterized in that: The cleaning block (20) is provided with two cleaning platforms, and the two cleaning platforms are respectively attached to the two inclined surfaces of the filter screen (15) at their close ends. The cleaning platform is provided with a collection groove for collecting impurities on the inclined surface of the filter screen (15) along the inclined direction, and a chamfer for scraping off impurities on the inclined surface of the filter screen (15) is provided at the other end. The cleaning platform is provided with a one-way cleaning device. The one-way cleaning device includes a U-shaped slot (23) opened in the middle of the inner cavity of the two cleaning platforms. The two open ends of the U-shaped slot (23) are connected to the collection groove, and a support platform (25) is fixed to the open end of the U-shaped slot (23). The support platform (25) is connected with multiple equidistant fan-shaped slots, and a one-way ball (26) is placed on the support platform (25) along the U-shaped slot (23). One-way platforms (24) are installed on the inner walls of both sides of the transverse end of the U-shaped slot (23) to prevent the one-way ball (26) from approaching.

6. The garment dyeing and printing wastewater treatment device according to claim 5, characterized in that: Both cleaning stations have a connecting hole in the middle that connects to the corresponding U-shaped slot (23), and a Y-shaped cleaning hose (34) is fixed to the connecting hole. The other end of the two cleaning hoses (34) passes through the main body of the treatment box (1) and is connected to a first liquid supply pump (35) installed on the top surface of the main body of the treatment box (1). The inlet end of the first liquid supply pump (35) is connected to an inlet hose (36). The rear end of the main body of the treatment box (1) is provided with a collection box (37) for storing cleaning liquid. The other end of the inlet hose (36) is connected to the collection box (37).

7. The garment dyeing and printing wastewater treatment device according to claim 6, characterized in that: The main body of the treatment box (1) has a drain trough in the middle of one side of the front end, and an isolation platform (28) is slidably installed in conjunction with the drain trough. The inclined end of the positioning frame (14) is placed in the middle of the drain trough. Two limiting platforms (27) are installed on the front wall of the inner cavity of the coarse filtration chamber (7). The limiting platform (27) has a connecting groove in the middle that is adapted for the sliding passage of the cleaning platform. Limiting blocks are provided on both sides of the limiting platform (27) along the inclined direction. The limiting blocks are U-shaped. The cleaning platform is equipped with a matching guide block. The other end of the limiting block is engaged with the inner wall of the coarse filtration chamber (7). The two limiting platforms (27) have a detection groove in the middle of the far side of the connecting groove. A metal detector is installed in conjunction with the detection groove to detect whether the cleaning platform is in place. The platform (53) is equipped with locking grooves on both sides of the drain trough, and an electromagnetic block (29) for fixing the isolation platform (28) and interacting with the metal platform (53) is installed in the locking groove. A drain pipe (30) is installed around the drain trough. The inner wall of the drain pipe (30) is aligned with the drain trough, and a fixing plate (31) is installed horizontally in the middle of the inner side. A second corrugated sleeve (32) is installed in the middle of the rear end of the fixing plate (31). The other end of the second corrugated sleeve (32) is fixed to the front end face of the isolation platform (28), and damping springs (33) are installed on both sides of the fixing plate (31) and placed inside the second corrugated sleeve (32). The other end of the damping springs (33) is fixed to the front end face of the isolation platform (28).

8. The garment dyeing and printing wastewater treatment device according to claim 1, characterized in that: The mixing assembly includes a circulation cylinder (54) installed in the first drug mixing chamber (8) and the second drug mixing chamber (9). The circulation cylinder (54) has a hyperbolic cross-section and a stirring roller (39) is vertically installed in the middle. An impeller is fixed below the stirring roller (39) and passes through the main body of the treatment tank (1) above it. A second servo motor (38) is connected above the stirring roller (39) via a coupling and installed on the top surface of the main body of the treatment tank (1). An annular dosing pipe (40) is sleeved on the upper and lower sides of the inner side of the circulation cylinder (54). The annular dosing pipe (40) has multiple dosing holes that are equidistantly connected. The liquid inlet end of the annular dosing pipe (40) passes through the top surface of the main body of the treatment tank (1).

9. The garment dyeing and printing wastewater treatment device according to claim 1, characterized in that: The purification and filtration assembly includes an isolation frame (41) installed above the inner wall of the purification chamber (10) and a perforated limiting cover (48) installed above the inner wall of the fine filtration chamber (11). A circulation device is installed between the purification chamber (10) and the first drug mixing chamber (8). Multiple packing plates (42) are installed at equal intervals and at an angle in the middle of the isolation frame (41). The circulation device includes a second liquid supply pump (43) installed on the top surface of the treatment tank body (1). The inlet and outlet ends of the second liquid supply pump (43) are respectively connected to a first circulation hose (44) and a second circulation hose (45). The other end of the pipe (44) is connected to the purification chamber (10) and is placed above the packing plate (42). The other end of the second circulating hose (45) is connected to the first drug mixing chamber (8) and is placed below the first drug mixing chamber (8). An installation groove is provided below the purification chamber (10) that penetrates the main body (1) of the treatment box. A collection platform (46) for collecting flocculants is installed in conjunction with the installation groove. A discharge pipe is connected to the middle of the bottom surface of the collection platform (46). An electronic valve (47) is installed at the other end of the discharge pipe. Filter cotton (49) and activated carbon (50) are installed in sequence inside the two limiting covers (48).

10. A garment dyeing and printing wastewater treatment device according to claim 1, characterized in that: A pH sensor (51) and a turbidity sensor (52) are installed in the coarse filtration chamber (7), the first drug mixing chamber (8), the second drug mixing chamber (9), the purification chamber (10), and the fine filtration chamber (11). The lower ends of the first isolation plate (3), the second isolation plate (4), and the third isolation plate (5) are all provided with a first flow channel for sewage flow, and the upper end of the fourth isolation plate (6) is provided with a second flow channel for sewage flow.

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