A filter box for recovering dyeing residue

Abstract

This application relates to a filter box for recovering dyeing residue, comprising a box body, a partition, a filter screen, and an adjustment assembly. The partition is vertically arranged inside the box body. The box body is divided into a settling zone and a filtration zone. The settling zone is connected to the water inlet of the box body, and the filtration zone is connected to the water outlet of the box body. The filter screen is located in the settling zone and is used to filter the residue flowing towards the water outlet. The adjustment assembly includes an adjustment plate, a rack, a gear, and a limiting member. The adjustment plate is slidably connected to the partition in a vertical direction and adjusts the space for carrying residue in the settling zone. The rack is vertically arranged and disposed on the adjustment plate. The gear is rotatably connected to the box body and meshes with the rack. The limiting member restricts the free rotation of the gear. This application has the effect of reducing the contact between metal debris in the dyeing residue and the filter screen.

Description

Technical Field

[0001] This application relates to the field of filter boxes, and more particularly to a filter box for the recovery of dyeing residue. Background Technology

[0002] Traditional drip dyeing wastewater contains high concentrations of dyes, auxiliaries, and salts. Direct discharge of such wastewater would severely pollute water bodies. Recycling the wastewater multiple times can reduce the water consumption in the dyeing process. Furthermore, the dyes and salts in the wastewater can be reused, reducing the concentration of pollutants in the final discharged wastewater.

[0003] In actual production, filter boxes are often used to filter residual liquid. The filter screen in the filter box filters out solid impurities such as fiber debris and dye agglomerates in the dyeing residual liquid. However, the dyeing residual liquid may also contain metal debris, such as steel reeds and rollers of looms and metal guide rollers of tenter frames. If the surface is worn, corroded, or has minor peeling, metal debris will be generated and enter the dye liquor during the dyeing process. When the residual liquid is recycled, the metal debris can easily come into contact with the filter screen, causing the filter screen to become clogged or even the mesh to enlarge and be damaged, resulting in poor filtration efficiency. Utility Model Content

[0004] To reduce the contact between metal debris in dyeing residue and the filter screen, this application provides a filter box for dyeing residue recovery.

[0005] This application provides a filter box for recovering dyeing residue, which adopts the following technical solution: A filter box for recovering dyeing residue includes a box body, a partition, a filter screen, and an adjustment assembly. The partition is vertically arranged inside the box body. The box body is divided into a settling zone and a filtration zone. The settling zone is connected to the water inlet of the box body, and the filtration zone is connected to the water outlet of the box body. The filter screen is located in the filtration zone and is used to filter the residue flowing towards the water outlet. The adjustment assembly includes an adjustment plate, a rack, a gear, and a limiting member. The adjustment plate is slidably connected to the partition in a vertical direction and adjusts the space for carrying residue in the settling zone. The rack is vertically arranged and is set on the adjustment plate. The gear is rotatably connected to the box body and meshes with the rack. The limiting member is used to restrict the free rotation of the gear.

[0006] By adopting the above technical solution, the chamber is divided into a settling zone and a filtration zone by a partition. The settling zone is specifically used for the settling of metal debris, allowing the metal debris in the residual liquid to initially settle in the settling zone, significantly reducing the amount of metal debris entering the filtration zone. This prevents metal debris from directly contacting the filter screen, which could cause clogging or damage, and reduces the filtration burden on the filter screen. In the adjustment component, the adjustment plate slides vertically along the partition, flexibly adjusting the space of the settling zone that holds the residual liquid. It can be adapted to the working conditions according to the settling requirements of the residual liquid. The meshing transmission of gears and racks ensures that the adjustment plate slides smoothly and precisely. The limiting component restricts the free rotation of the gears to fix the position of the adjustment plate, ensuring the stability of the settling zone space, ensuring the settling effect of metal debris, and maintaining the orderly progress of the subsequent filtration process.

[0007] Optionally, the limiting component includes a limiting block, a limiting rod, and a limiting spring. The limiting block is slidably connected to the housing in a direction close to or away from the gear. The limiting block has a locking groove for engaging with the gear. The length direction of the limiting rod is parallel to the length direction of the limiting block. One end of the limiting rod is disposed on the limiting block. The limiting spring is used to keep the limiting block locked to the gear.

[0008] By adopting the above technical solution, the limiting block can slide in the direction close to or away from the gear, and the locking groove on the limiting block can engage with the gear to limit the rotation of the gear; the limiting rod provides guidance for the sliding of the limiting block, ensuring that the limiting block can accurately engage with the gear when it moves; the limiting spring can apply a continuous force to the limiting block, keeping the limiting block engaged with the gear, further improving the stability of the gear fixation, preventing the limiting block from disengaging from the gear due to external force, thus more reliably maintaining the position of the adjusting plate, ensuring the stability of the settling zone space, making the initial filtration effect of the residual liquid in the settling zone more stable, and reducing the fluctuation of filtration efficiency caused by the change of the position of the adjusting plate.

[0009] Optionally, a sealing strip is provided on the partition plate, the sealing strip is disposed on the upper surface of the partition plate, and the sealing strip abuts against the side wall of the adjusting plate.

[0010] By adopting the above technical solution, a sealing strip is set on the upper surface of the partition plate, and the sealing strip abuts against the side wall of the regulating plate, effectively filling the gap between the partition plate and the regulating plate; this design can prevent unfiltered residual liquid in the settling zone from entering the gap between the partition plate and the regulating plate, thus improving the reliability of the regulating component.

[0011] Optionally, the filtration zone is provided with two filter screens, which are distributed along the flow direction of the residual liquid, and the pore size of the filter screens decreases sequentially along the flow direction of the residual liquid.

[0012] By adopting the above technical solution, two filter screens with progressively smaller pore sizes are set along the flow direction of the residual liquid in the filtration zone, forming a graded filtration mode of coarse filtration and fine filtration. After the metal debris settles in the settling zone, the larger particles of impurities remaining in the residual liquid are first filtered through the large-pore filter screen, and then the fine impurities are filtered through the small-pore filter screen, further purifying the residual liquid. This design reduces the probability of clogging of a single filter screen and extends the service life of the filter screen. At the same time, since most of the metal debris has been removed in the settling zone, the filter screen does not need to withstand the impact and wear of the metal debris, further ensuring the filtration performance of the filter screen and improving the overall filtration efficiency.

[0013] Optionally, the filter area of ​​the housing is provided with two sliding tracks, which correspond to two filter screens. The sliding tracks are vertically arranged, and the filter screens are slidably connected to the sliding tracks.

[0014] By adopting the above technical solution, the two sliding tracks of the filter area of ​​the housing correspond to the two filter screens and are set vertically. The filter screens are slidably connected to the sliding tracks, which makes it easy to remove the filter screens from the tracks for cleaning, replacement or maintenance. Since the metal debris has been settled in the settling zone, the filter screens mainly filter impurities such as fiber debris. Regular removal and maintenance can ensure the filtration effect of the filter screens, reduce equipment downtime, ensure the continuous and efficient operation of the filtration process, and at the same time avoid the subsequent treatment of metal debris in the settling zone being indirectly affected by filter screen blockage.

[0015] Optionally, the housing is provided with two rotating plates, which correspond to two sliding tracks. The rotating plates are rotatably connected to the upper surface of the housing and are used to abut against the upper surface of the filter screen.

[0016] By adopting the above technical solution, the two rotating plates on the upper end face of the box correspond to and are rotatably connected to the two sliding tracks. The rotating plates abut against the upper end face of the filter screen to fix the filter screen that is slidably installed on the track, preventing the filter screen from shifting or shaking due to the impact of residual liquid flow. Since metal debris has been removed from the settling zone, the filter screen does not need to worry about the additional impact of metal debris. This design ensures that the filter screen is stable in position when filtering impurities such as fiber debris, ensuring the filtration effect. At the same time, the filter screen can be removed by rotating it during maintenance, which is convenient and does not affect the normal settling operation of metal debris in the settling zone.

[0017] Optionally, the settling zone is provided with a discharge port for discharging metal debris, and a control valve is installed on the discharge port. A cleaning assembly is installed in the settling zone, the cleaning assembly including a cleaning plate, a first sliding rod, a second sliding rod, and an operating component. A first sliding groove and a second sliding groove are provided on the side wall of the housing. The first sliding groove is rectangular, and the second sliding groove is an isosceles trapezoid. The second sliding groove is deeper than the first sliding groove, the width of the first sliding groove is greater than the width of the second sliding groove, the bottom edge of the first sliding groove is lower than the bottom edge of the second sliding groove, and the length of the bottom edge of the first sliding groove is equal to the length of the bottom edge of the second sliding groove. The top edge of the first sliding groove coincides with the top edge of the second sliding groove. The length of the top edge of the first sliding groove is longer than the length of the top edge of the second sliding groove. The first sliding rod and the second sliding rod are both disposed on the cleaning plate. The first sliding rod is slidably connected in the first sliding groove, and the second sliding rod is slidably connected in the second sliding groove. When the first sliding rod and the second sliding rod are both located in the bottom edge of the first sliding groove and the second sliding groove, the cleaning plate is in a vertical state and abuts against the bottom wall of the box. When the first sliding rod and the second sliding rod are both located in the top edge of the first sliding groove and the second sliding groove, the cleaning plate is in a state parallel to the bottom wall of the box.

[0018] By adopting the above technical solution, the discharge port and matching control valve in the settling zone can specifically discharge the settled metal debris, directly cleaning the metal debris collected in the settling zone out of the box, avoiding the accumulation of metal debris in the settling zone that affects the subsequent settling effect, or the metal debris entering the filtration zone with the residual liquid and damaging the filter screen, thus solving the problem of metal debris affecting filtration efficiency in the background technology from the source; the cleaning component achieves the switching of the cleaning plate state by sliding the first sliding rod and the second sliding rod in the first sliding groove and the second sliding groove respectively. When the first sliding rod and the second sliding rod are located at the bottom edge of the sliding groove, the cleaning plate is in a vertical state and abuts against the bottom wall of the box. The metal debris at the bottom of the settling zone is directly pushed to the discharge port, ensuring efficient collection and discharge of the metal debris. When the cleaning plate needs to be reset, the first and second sliding rods are slid to the top edges of the first and second sliding grooves, allowing the cleaning plate to switch to a horizontal state parallel to the bottom wall of the tank. During this process, the cleaning plate separates from the metal debris, which can effectively reduce the retraction of the collected metal debris and prevent secondary dispersion of the metal debris. At the same time, the horizontal cleaning plate will not significantly agitate the residual liquid in the settling zone when it is reset and moved, reducing the interference of residual liquid flow on the incompletely settled metal debris and ensuring a continuous and stable metal debris settling environment in the settling zone.

[0019] Optionally, the operating component includes an operating lever, a connecting rod, and a sliding frame. The sliding frame is disposed on the housing and has a third sliding groove. The third sliding groove is rectangular and has the same dimensions as the first sliding groove. The operating lever is slidably connected to the third sliding groove. One end of the connecting rod is disposed on the operating lever, and the other end of the connecting rod is rotatably connected to the cleaning plate. The rotation axis of the connecting rod is parallel to the axis of the first sliding rod.

[0020] By adopting the above technical solution, the sliding frame of the operating component is set on the box body. Its third sliding groove is rectangular and has the same size as the first sliding groove. The operating rod is slidably connected in the third sliding groove. One end of the connecting rod is connected to the operating rod, and the other end is rotatably connected to the cleaning plate, with the rotation axis parallel to the axis of the first sliding rod. The operator can slide the operating rod in the third sliding groove through external operation, which can drive the cleaning plate to move through the connecting rod. This provides a convenient operation method for switching the state of the cleaning plate. The cleaning of metal debris in the settling area can be completed without going deep into the box body, reducing the difficulty and safety risks of the cleaning operation, ensuring timely and efficient cleaning of metal debris in the settling area, and ensuring that the settling area can continue to play its role in the settling of metal debris.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. Metal debris is directionally settled in the settling zone. Combined with the state-switching design of the cleaning plate, when vertical, metal debris can be precisely pushed to the discharge port for discharge. When resetting, it switches to a horizontal state to reduce debris retraction and residual liquid disturbance, ensuring efficient cleaning of metal debris. At the same time, the settling zone intercepts most of the metal debris, preventing it from entering the filtration zone and contacting the filter screen. This prevents filter screen clogging and mesh damage from the source, solving the core problem of metal debris affecting filtration efficiency in the background technology and ensuring long-term stable operation of the filter assembly. 2. The adjustment component can smoothly adjust the sedimentation zone space through gear and rack transmission, and fix the adjustment position with the limiting component. It can flexibly adapt to different working conditions according to the residual liquid volume and metal debris sedimentation requirements. The staged filtration design further improves the purification accuracy of residual liquid on the basis of sedimentation zone pretreatment. The combination of coarse filtration and fine filtration not only improves filtration efficiency, but also extends the service life of the filter screen, so that the device can maintain high-efficiency filtration performance under different residual liquid impurity content scenarios. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the filter box used for recovering dyeing residue.

[0023] Figure 2 yes Figure 1 The cross-sectional view of the middle box shows the cleaning status of the cleaning plate and its parallel bottom wall status.

[0024] Figure 3 yes Figure 1A schematic diagram of the structure of the adjustment component.

[0025] Figure 4 yes Figure 1 Schematic diagram of the installation structure of the middle chamber and filter screen.

[0026] Reference numerals: 1. Box body; 11. Settling zone; 12. Filtration zone; 13. Water inlet; 14. Water outlet; 15. Discharge port; 16. Control valve; 17. First sliding groove; 18. Second sliding groove; 2. Partition; 21. Sealing strip; 3. Filter screen; 4. Adjustment assembly; 41. Adjustment plate; 42. Rack; 43. Gear; 44. Limiting component; 441. Limiting block; 442. Limiting rod; 443. Limiting spring; 444. Snap-fit ​​groove; 5. Cleaning assembly; 51. Cleaning plate; 52. First sliding rod; 53. Second sliding rod; 54. Operating component; 541. Operating rod; 542. Connecting rod; 543. Sliding frame; 544. Third sliding groove; 6. Sliding track; 62. Rotating plate. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail.

[0028] This application discloses a filter box for recovering dyeing residue. (Refer to...) Figure 1 A filter box for recovering dyeing residue includes a box body 1, a partition 2, two filter screens 3, an adjustment component 4, and a cleaning component 5. The partition 2 is vertically arranged and fixedly installed inside the box body 1, dividing the box body 1 into a settling zone 11 and a filtration zone 12. The box body 1 is provided with a water inlet 13 and a water outlet 14. The water inlet 13 is connected to the settling zone 11, and the water outlet 14 is connected to the filtration zone 12. The adjustment component 4 is used to change the space for holding residual liquid in the settling zone 11. The cleaning component 5 is located in the settling zone 11 and is used to clean metal debris at the bottom of the settling zone 11.

[0029] refer to Figure 1 and Figure 2The housing 1 has a discharge port 15 for discharging metal shavings, which is connected to the settling zone 11. A control valve 16 is fixedly installed on the discharge port 15. The cleaning assembly 5 includes a cleaning plate 51, a first sliding rod 52, a second sliding rod 53, and an operating component 54. The inner side wall of the housing 1 has a first sliding groove 17 and a second sliding groove 18. The first sliding groove 17 is rectangular, and the second sliding groove 18 is an isosceles trapezoid. All grooves 18 extend along the thickness direction of the housing 1. The bottom of the second sliding groove 18 is deeper than the bottom of the first sliding groove 17. The width of the first sliding groove 17 is wider than the width of the second sliding groove 18. The top edge of the first sliding groove 17 coincides with the top edge of the second sliding groove 18. The length of the top edge of the first sliding groove 17 is longer than the length of the top edge of the second sliding groove 18. The bottom edge of the first sliding groove 17 is higher than the bottom edge of the second sliding groove 18. The length of the bottom edge of the first sliding groove 17 is equal to that of the first sliding groove 18. The length of the bottom plate of the second sliding groove 18 is such that the length direction of the first sliding rod 52 is parallel to the extension direction of the first sliding groove 17, and the first sliding rod 52 is slidably connected to the first sliding groove 17; the length direction of the second sliding rod 53 is parallel to the extension direction of the second sliding groove 18, and the second sliding rod 53 is slidably connected to the second sliding groove 18; both the first sliding rod 52 and the second sliding rod 53 are fixedly mounted on the cleaning plate 51. When the cleaning plate 51 is located within the bottom edge of the first sliding groove 17 and the second sliding groove 18, it is in a vertical state and abuts against the inner bottom wall of the box 1. When the first sliding rod 52 and the second sliding rod 53 are located within the top edge of the first sliding groove 17 and the second sliding groove 18, the cleaning plate 51 is parallel to the inner bottom wall of the box 1. When the first sliding rod 52 and the second sliding rod 53 are both located on the same side of the first sliding groove 17 and the second sliding groove 18, the cleaning plate 51 is in an inclined state.

[0030] refer to Figure 2 and Figure 3 The operating component 54 includes an operating lever 541, a connecting rod 542, and a sliding frame 543. The sliding frame 543 is fixedly installed on the upper surface of the housing 1. A third sliding groove 544 is provided on the sliding frame 543. The third sliding groove 544 has the same size as the first sliding groove 17. The operating lever 541 is parallel to the first sliding rod 52. One end of the operating lever 541 is slidably connected to the third sliding groove 544. The connecting rod 542 is vertically installed. One end of the connecting rod 542 is fixedly installed on the operating lever 541. The other end of the connecting rod 542 is rotatably connected to the cleaning plate 51. The rotation axis of the connecting rod 542 is parallel to the axis of the first sliding rod 52.

[0031] refer to Figure 2 and Figure 3The adjusting assembly 4 includes an adjusting plate 41, a rack 42, a gear 43, and a limiting member 44. The adjusting plate 41 is slidably connected to the partition plate 2 in a vertical direction. The length direction of the rack 42 is parallel to the length direction of the adjusting plate 41, and the rack 42 is fixedly mounted on the adjusting plate 41. The gear 43 is rotatably connected to the side wall of the housing 1 and meshes with the rack 42. A rotating handle is fixedly mounted on the gear 43. The limiting member 44 includes a limiting block 441, a limiting rod 442, and a limiting spring 443. The limiting block 441 is slidably connected to the housing 1 in a horizontal direction that is close to or away from the gear 43, limiting... A snap-fit ​​groove 444 is provided on the block 441 for engaging with the gear 43. The length direction of the limiting rod 442 is parallel to the sliding direction of the limiting block 441. One end of the limiting rod 442 is fixedly mounted on the limiting block 441. A limiting spring 443 is sleeved on the limiting rod 442. One end of the limiting spring 443 is fixedly mounted on the limiting rod 442, and the other end of the limiting spring 443 is fixedly mounted on the housing 1. A sealing strip 21 is provided on the partition 2. The length direction of the sealing strip 21 is parallel to the width direction of the adjusting plate 41. The sealing strip 21 deforms and abuts against the side wall of the adjusting plate 41.

[0032] refer to Figure 1 and Figure 4 Two filter screens 3 are distributed along the flow direction of the residual liquid in the filtration zone 12, and the aperture of the two filter screens 3 decreases sequentially along the flow direction of the residual liquid. Two sliding rails 6 are provided inside the box body 1, and the two sliding rails 6 correspond to the two filter screens 3. The sliding rails 6 are set vertically, and the filter screens 3 slide and connect to the sliding rails 6 in the vertical direction. Two rotating plates 62 are provided on the box body 1, and the two rotating plates 62 correspond to the two filter screens 3. The rotation axis of the rotating plates 62 is set vertically, and the rotating plates 62 are rotatably connected to the upper end face of the box body 1. The rotating plates 62 are used to abut against the top wall of the filter screens 3. When the rotating plates 62 abut against the top wall of the filter screens 3, the bottom of the filter screens 3 abuts against the inner bottom wall of the box body 1.

[0033] The implementation principle of a filter box for recovering dyeing residue in this application embodiment is as follows: The filter box is divided into a settling zone 11 and a filtration zone 12 by a partition 2. The residue enters the settling zone 11 through the water inlet 13, and metal debris settles in the settling zone 11. In the adjustment assembly 4, the rotating gear 43 drives the rack 42 and the adjustment plate 41 to slide vertically, which can adjust the space of the settling zone 11. The limiting block 441 is engaged with the gear 43 through the snap-fit ​​groove 444, and the limiting spring 443 fixes the position of the adjustment plate 41. The sealing strip 21 ensures that the adjustment plate 41 is sealed with the partition 2. In the cleaning assembly 5, the first and second sliding rods 53 slide in the corresponding sliding grooves, which drives the cleaning plate 51 to switch states: when it is located at the bottom edge of the tank, the cleaning plate 51 is vertical, which can push the metal debris to the discharge port 15 and discharge it through the control valve 16; when it is located at the top edge of the tank, the cleaning plate 51 is horizontal, which reduces debris retraction and residual liquid disturbance during reset; when it is located on the same side, it is in an inclined state. The operating component 54 slides within the third sliding groove 544 via the operating rod 541, and drives the cleaning plate 51 to move via the connecting rod 542. In the filtration zone 12, two filter screens 3 with decreasing pore sizes are distributed along the direction of residual liquid flow and are vertically slidable and installed via the sliding track 6. The rotating plate 62 rotates and abuts against the top wall of the filter screen 3 to achieve fixation. After filtration, the residual liquid is discharged from the outlet hole 14, realizing the cleaning and graded filtration of metal debris in the dyeing residual liquid.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A filter tank for dyeing residual recovery, characterized by: The system includes a housing (1), a partition (2), a filter screen (3), and an adjustment assembly (4). The partition (2) is vertically installed inside the housing (1). The housing (1) is divided into a settling zone (11) and a filtration zone (12). The settling zone (11) is connected to the water inlet (13) of the housing (1), and the filtration zone (12) is connected to the water outlet (14) of the housing (1). The filter screen (3) is located inside the filtration zone (12) and is used to filter the residual liquid flowing towards the water outlet (14). The adjustment assembly (4) includes an adjustment plate. (41), rack (42), gear (43) and limiting member (44), the adjusting plate (41) is slidably connected to the partition plate (2) in the vertical direction, the adjusting plate (41) adjusts the space for carrying residual liquid in the settling zone (11), the rack (42) is vertically set on the adjusting plate (41), the gear (43) is rotatably connected to the box body (1), the gear (43) meshes with the rack (42), and the limiting member (44) is used to limit the free rotation of the gear (43).

2. A filter tank for dyeing residual recovery according to claim 1, characterized in that: The limiting component (44) includes a limiting block (441), a limiting rod (442), and a limiting spring (443). The limiting block (441) is slidably connected to the housing (1) in a direction close to or away from the gear (43). The limiting block (441) has a locking groove (444) for engaging with the gear (43). The length direction of the limiting rod (442) is parallel to the length direction of the limiting block (441). One end of the limiting rod (442) is disposed on the limiting block (441). The limiting spring (443) is used to keep the limiting block (441) locked to the gear (43).

3. A filter box for recovering dyeing residue according to claim 1, characterized in that: A sealing strip (21) is provided on the partition (2). The sealing strip (21) is located on the upper surface of the partition (2) and abuts against the side wall of the adjusting plate (41).

4. The filter box for dyeing residual recovery according to claim 1, characterized in that: The filtration zone (12) is provided with two filter screens (3), which are distributed along the flow direction of the residual liquid, and the pore size of the filter screens (3) decreases sequentially along the flow direction of the residual liquid.

5. A filter tank for dyeing residual recovery according to claim 4, characterized in that: Two sliding tracks (6) are provided in the filter area (12) of the housing (1). The two sliding tracks (6) correspond to two filter screens (3). The sliding tracks (6) are vertically arranged, and the filter screens (3) are slidably connected to the sliding tracks (6).

6. A filter tank for dyeing residual recovery according to claim 5, characterized in that: The housing (1) is provided with two rotating plates (62), which correspond to two sliding tracks (6). The rotating plates (62) are rotatably connected to the upper surface of the housing (1), and the rotating plates (62) are used to abut against the upper surface of the filter screen (3).

7. A filter tank for dyeing residual recovery according to claim 1, characterized in that: The settling zone (11) is provided with a discharge port (15) for discharging metal debris. A control valve (16) is provided on the discharge port (15). A cleaning assembly (5) is provided in the settling zone (11). The cleaning assembly (5) includes a cleaning plate (51), a first sliding rod (52), a second sliding rod (53), and an operating component (54). A first sliding groove (17) and a second sliding groove (18) are provided on the side wall of the housing (1). The first sliding groove (17) is rectangular, and the second sliding groove (18) is an isosceles trapezoid. The second sliding groove (18) is deeper than the first sliding groove (17). The width of the first sliding groove (17) is greater than the width of the second sliding groove (18). The bottom edge of the first sliding groove (17) is lower than the bottom edge of the second sliding groove (18). The length of the bottom edge of the first sliding groove (17) is equal to the length of the bottom edge of the second sliding groove (18). The top edge of the first sliding groove (17) coincides with the top edge of the second sliding groove (18). The length of the top edge of the first sliding groove (17) is longer than the length of the top edge of the second sliding groove (18). The first sliding rod (52) and the second sliding rod (53) are both disposed on the cleaning plate (51). The first sliding rod (52) is slidably connected to the first sliding groove (17), and the second sliding rod (53) is slidably connected to the second sliding groove (18). 18) When the first sliding rod (52) and the second sliding rod (53) are both located inside the bottom edge of the first sliding groove (17) and the second sliding groove (18), the cleaning plate (51) is in a vertical state and abuts against the bottom wall of the box (1). When the first sliding rod (52) and the second sliding rod (53) are both located inside the top edge of the first sliding groove (17) and the second sliding groove (18), the cleaning plate (51) is in a state parallel to the bottom wall of the box (1).

8. A filter tank for dyeing residual recovery according to claim 7, characterized in that: The operating component (54) includes an operating lever (541), a connecting rod (542), and a sliding frame (543). The sliding frame (543) is disposed on the housing (1). A third sliding groove (544) is provided on the sliding frame (543). The third sliding groove (544) is rectangular and has the same size as the first sliding groove (17). The operating lever (541) is slidably connected to the third sliding groove (544). One end of the connecting rod (542) is disposed on the operating lever (541), and the other end of the connecting rod (542) is rotatably connected to the cleaning plate (51). The rotation axis of the connecting rod (542) is parallel to the axis of the first sliding rod (52).

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