Textile printing and dyeing wastewater treatment device

Abstract

The invention relates to the technical field of printing and dyeing wastewater treatment, in particular to a textile printing and dyeing wastewater treatment device, which comprises a drainage ditch, a three-stage treatment group is arranged in the drainage ditch, the three-stage treatment group comprises three groups of filter plates, the three groups of filter plates are all arranged in the drainage ditch, the filter plates incline towards the water flow direction, dense filter holes are formed in the filter plates, and the filter holes are communicated with the drainage ditch. The apertures of the filter holes of the three-stage treatment group are sequentially reduced along the water flow direction; a washboard is mounted on the front side of the filter plate, the washboard does reciprocating circulation motion, the washboard is in intermittent contact with the filter plate under the reciprocating circulation motion, and the washboard moves upwards along the surface of the filter plate after the washboard is in intermittent contact with the filter plate. According to the invention, the rubbing plate is intermittently contacted with the filter plate, the relative movement of the rubbing plate is utilized to gradually rub the fiber chippings blocked by the filter plate into strips, and the movement of the rubbing plate is utilized to concentrate, so that the rubbing of the rubbing plate better conforms to the small-size characteristic of the fiber chippings, and the fiber chippings can be conveniently and stably cleaned.

Description

Technical Field

[0001] This invention relates to the field of textile dyeing wastewater treatment technology, specifically to a textile dyeing wastewater treatment device. Background Technology

[0002] Textile dyeing and printing wastewater is industrial wastewater generated during the production process of the textile dyeing and printing industry. It is characterized by complex composition, high color intensity, high organic content, and poor biodegradability, making it one of the most difficult types of industrial wastewater to treat. It includes dyes, sizing agents (starch, PVA), auxiliaries (surfactants, fixing agents, leveling agents), oils, acids and alkalis, fiber debris, and inorganic salts. The fiber debris in dyeing and printing wastewater mainly originates from fabric shedding during processing and has the following characteristics: particle size is mainly concentrated between 10-80 μm, with some debris particles even smaller; density is close to that of water, possibly slightly greater or less than water, and it usually does not easily settle naturally; the main components are cotton fibers and chemical fibers.

[0003] In the treatment of dyeing and printing wastewater, before the filtration process, it is necessary to filter out fiber debris and other insoluble foreign matter separately to prevent these insoluble debris and foreign matter from clogging the filter. Currently, plate or membrane filters are mainly used for filtering fiber debris and other insoluble foreign matter separately. This filtration method relies on the natural flow and pressure of the water body to allow water to pass through the filter plate or membrane, while fiber debris is blocked. As the blocked fiber debris accumulates, it will cause blockage and affect the flow of water. Therefore, some equipment is additionally equipped to clean or remove blocked fiber debris and other insoluble foreign matter to avoid or alleviate blockage.

[0004] Because of the small size of the fiber debris, the effect of continuously scraping and cleaning the fiber debris on the surface of the filter plate using components such as scrapers is not obvious. Generally, the fiber debris is first allowed to accumulate for a period of time to form a noticeable pile, and then the pile is scraped and cleaned by the scraper. In order to improve the cleaning efficiency, cleaning is usually carried out simultaneously during the wastewater filtration process. Specifically, when scraping, the debris filtered on the filter plate is pushed by the scraper to concentrate in a designated direction. The staff then transfers the concentrated debris from the wastewater to complete the cleaning. However, during this process, the debris is scattered in the wastewater due to the flow of the water, making it difficult to concentrate the debris during cleaning and resulting in an unsatisfactory cleaning effect. Summary of the Invention

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution: A textile printing and dyeing wastewater treatment device includes a drainage ditch, in which a three-stage treatment group is provided. The three-stage treatment group includes three sets of filter plates, all of which are located in the drainage ditch. The filter plates are inclined in the direction of water flow and have dense filter holes. The diameter of the filter holes in the three-stage treatment group decreases sequentially along the direction of water flow. A rubbing plate is installed on the front side of the filter plate. The rubbing plate moves back and forth in a cyclical motion. During the cyclical motion, the rubbing plate makes intermittent contact with the filter plate. After intermittent contact with the filter plate, the rubbing plate moves upward along the surface of the filter plate.

[0006] Furthermore, the front and rear ends of the washboard are movably connected to fixed frames, and the front and rear fixed frames are fixed to end shafts at both ends. The cross-section of the end shaft is set in a Z-shaped structure. One end of the end shaft is inserted and connected at the end center of the fixed frame. A bearing seat is installed on the drainage ditch corresponding to the end shaft position. The other end of the end shaft is installed with the bearing seat. The washboard rotates eccentrically in a reciprocating cycle around the bearing seat as the axis. A motor is installed above the corresponding end shaft on the right side of the drainage ditch. Both the output end of the motor and the corresponding end shaft are equipped with sprockets. A drive chain is installed on the sprockets at the output end and on the end shaft. A frame is installed on the drainage ditch below the motor, supporting the motor. When the end shaft rotates to its lowest point due to eccentric rotation, the rubbing plate not only contacts the filter plate but also moves relative to it, briefly moving upwards. This contact between the rubbing plate and the filter plate, along with the upward movement, creates a rubbing motion against the fiber debris.

[0007] Furthermore, the filter plate is inclined in the direction of water flow, with an inclination angle of 20°-35°. If the inclination angle is too large, the upward movement of the filter plate on the fiber debris will be unstable, failing to form a stable upward pushing and collection effect. If the inclination angle is too small, it will cause unnecessary material waste. This angle range is more reasonable.

[0008] Furthermore, the filter plate is pre-installed with multiple ribs, which are arranged laterally. The ribs, in conjunction with the inclined arrangement of the filter plate, enhance the upward movement of fiber debris by the filter plate.

[0009] Furthermore, the rubbing board includes a base plate, on which a soft substrate is fixed on the side facing the filter plate. The soft substrate can be any one of rubber, silicone, silicone rubber, sponge, or foam. The ribs ensure that the contact area between the rubbing board and the filter plate has a certain degree of softness; otherwise, the contact area between the rubbing board and the filter plate will be insufficient, making it difficult to rub the fiber debris into strips. Using a soft material ensures sufficient contact between the rubbing board and the filter plate surface without affecting the effectiveness of the ribs.

[0010] Furthermore, a vibration motor is installed on the back of the filter plate. The vibration motor is a linear vibration motor, and the linear vibration direction of the linear vibration motor is consistent with the tilt direction of the filter plate. The vibration frequency of the vibration motor can be the same as or higher than the rotation frequency of the rubbing plate, but it is necessary to ensure that the rubbing plate vibrates downward each time it comes into contact with the filter plate to ensure that the rubbing plate has a sufficient rubbing effect on the fiber debris.

[0011] Furthermore, tripods are installed on the left and right sides of the back of the filter plate, and guide rails are fixed on the back of the filter plate corresponding to the positions of the tripods. Slider blocks that slide along the guide rails are installed on the guide rails and are fixed to the tripods. A sealing strip is installed between the side of the filter plate and the inner wall of the drainage ditch. Since the filter plate vibrates, a gap will inevitably exist between it and the drainage ditch. Therefore, a sealing strip is used to seal the gap without affecting the vibration of the filter plate. Fluororubber is selected for its good chemical resistance and suitability for use in wastewater environments. Of course, other materials with the same sealing effect and without affecting the vibration of the filter plate can also be used; these are all foreseeable options.

[0012] Furthermore, the edges where the ribs meet the filter plate are chamfered with an arc. Multiple equally spaced protruding teeth are integrally formed and fixed on the soft substrate facing the filter plate. The sides of the protruding teeth corresponding to the rotation direction of the scouring pad have a concave arc surface structure. The protruding teeth, in conjunction with the chamfered edges, facilitate effective cleaning of fiber debris from the ribs and the edges of the filter plate, ensuring stable cleaning of fiber debris from the filter plate by the scouring pad.

[0013] Furthermore, a collecting plate is fixed to the rear top of the filter plate, and the collecting plate is inclined downward to the right. This is to facilitate the collection of fiber debris strips lifted by the scouring pad. When used with a vibrating motor, the collection can be further facilitated.

[0014] Furthermore, rotating rollers are installed at both the left and right ends of the collection plate, and rubber belts are installed on the left and right rotating rollers. Multiple equally spaced scraper strips are fixed on the rubber belts, and the scraper strips abut against the top surface of the collection plate. A second motor is installed on the right side of the drainage ditch, corresponding to one end of the rotating roller. The output end of the second motor is fixedly connected to the rotating roller via a coupling. The scraper strips, driven by the rubber belt, can automatically scrape off the fiber debris strips falling on the collection plate, thereby collecting them in a concentrated manner.

[0015] The beneficial effects of this invention are as follows: 1. This invention utilizes the intermittent contact between a washboard and a filter plate, and uses the movement of the washboard to gradually rub the fiber debris blocked by the filter plate into strips, and uses the movement of the washboard to concentrate it. The rubbing motion of the washboard is more in line with the small volume characteristics of the fiber debris, which can conveniently and stably clean the fiber debris.

[0016] 2. In this invention, ribs are provided on the filter plate to ensure that the fiber debris strips can be reliably driven upward by the rubbing plate, and the convex teeth on the rubbing plate reduce the dead corner area on the rubbing plate, so that the rubbing plate can better clean the fiber debris on the filter plate.

[0017] 3. In this invention, a linear vibration motor is configured for the filter plate. The vibration frequency is coordinated with the rotation frequency of the rubbing plate to form a movement in opposite directions, thereby improving the rubbing effect on fiber debris and making the rubbed fiber debris more compact and less likely to fall apart.

[0018] 4. The present invention is equipped with a collection plate and is used in conjunction with a rubber belt and a scraper, which can conveniently collect fiber debris.

[0019] 5. In this invention, the rubbing board rubs the fiber debris into strips. After leaving the water surface, the rubbing action compresses the fiber debris strips, thereby squeezing out the residual wastewater inside. In this way, the moisture content of the collected fiber debris strips is greatly reduced. Attached Figure Description

[0020] Figure 1 This is a processing structure diagram of the present invention; Figure 2 This is a schematic diagram of the filter plate arrangement in this invention; Figure 3 This is a schematic diagram of the washboard arrangement in this invention; Figure 4 This is a schematic diagram of the end shaft configuration in this invention; Figure 5 This is a bottom view of the filter plate in this invention; Figure 6 This is a schematic diagram of the vibration motor setup in this invention; Figure 7 This is a schematic diagram of the sealing strip arrangement in this invention; Figure 8 This is a side view of the convex rib in this invention; Figure 9 This is a schematic diagram of the tooth arrangement in this invention; Figure 10 This is a schematic diagram of the rubber belt arrangement in this invention; Figure 11 This is a perspective view of the rubber belt in this invention.

[0021] Reference numerals: 1000, Three-stage treatment group; 1, Filter plate; 10, Filter hole; 11, Raised rib; 12, Washboard; 13, Fixing frame; 14, End shaft; 15, Shaft seat; 16, Chain; 17, Sprocket; 18, Motor 1; 19, Frame; 110, Tripod; 111, Vibration motor; 112, Guide rail; 113, Slider; 114, Waterproof sealing box; 115, Sealing strip; 116, Collection plate; 117, Guide plate; 118, Rubber belt; 119, Scraper; 120, Rotary roller; 121, Motor 2; 122, Arc chamfer; 123, Base plate; 124, Soft substrate; 125, Raised tooth; 126, Arc surface; 2000, Drainage ditch. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0023] This application provides a textile dyeing and printing wastewater treatment device, mainly addressing the problem of unsatisfactory cleaning effect when using scrapers or similar components to remove fiber debris blocked by filter plates. The following technical solution is provided, which will be discussed in conjunction with... Figures 1-11 Please provide a detailed explanation: A textile printing and dyeing wastewater treatment device includes a drainage ditch 2000 and a three-stage treatment group 1000 located at the location of the drainage ditch 2000. The three-stage treatment group 1000 includes three sets of filter plates 1, all of which are located in the drainage ditch 2000. The filter plates 1 are inclined in the direction of water flow, with an inclination angle of 20°-35°. The filter plates 1 are provided with dense filter holes 10, and the diameter of the filter holes 10 in the three-stage treatment group 1000 decreases sequentially along the direction of water flow. A rubbing board 12 is installed on the upper front side of the filter plate 1. The rubbing board 12 is inclined and parallel to the filter plate 1. The rubbing board 12 abuts against the filter plate 1. The front and rear ends of the rubbing board 12 are movably connected to the fixing frame 13. The left and right ends of the front and rear fixing frames 13 are fixed with end shafts 14. The cross section of the end shaft 14 is set in a Z-shaped structure. One end of the end shaft 14 is installed at the center of the two ends of the fixing frame 13. The two ends of the fixing frame 13 have holes corresponding to the positions of the end shaft 14. The end of the end shaft 14 is inserted into the hole to form an insertion connection between the end shaft 14 and the fixing frame 13. A bearing seat 15 is installed on the drainage ditch 2000 at the position corresponding to the end shaft 14. The outer end of the end shaft 14 away from the fixed frame 13 is installed with the bearing seat 15 at the corresponding position. The end shaft 14 is supported by the bearing of the bearing seat 15 and rotates around the center of the bearing. A motor 18 is installed on the right side of the drainage ditch 2000 above the end shaft 14. A sprocket 17 is installed on the output end of the motor 18 and the end shaft 14 at the corresponding position. A transmission chain 16 is installed on the sprocket 17 at the output end and the end shaft 14. A frame 19 is installed on the drainage ditch 2000 at the bottom of the motor 18. The motor 18 is supported by the frame 19.

[0024] When in use, the dyeing and printing wastewater flows through the drainage ditch 2000 to different process stages for treatment. The water level needs to be higher than the front fixed frame 13, that is, part of the washboard 12 is immersed in the wastewater. When the dyeing and printing wastewater is transported and flowed through the drainage ditch 2000, it passes through the filter holes 10 and the filter plate 1 blocks and filters the fiber debris and other insoluble impurities in the dyeing and printing wastewater. During filtration, motor 18 is turned on. Motor 18 drives the fixed frame 13 to rotate cyclically around the shaft seat 15 using the end shaft 14. Due to the Z-shaped structure of the end shaft 14, the fixed frame 13 and the rubbing plate 12 are eccentric relative to the shaft seat 15. When the rubbing plate 12 comes into contact with the filter plate 1, the movement of the rubbing plate 12 and the fixation of the filter plate 1 perform an upward rubbing motion, thereby rubbing the blocked fiber debris once. Specifically, the rubbing plate 12 is driven by the rotating fixed frame 13 to intermittently move closer to and away from the filter plate 1. At the same time, the rubbing plate 12 moves upward when it is close to the filter plate 1 and moves downward when it is away from the filter plate 1. Meanwhile, the rubbing plate 12 rotates eccentrically under the drive of the end shaft 14, thus constantly contacting and moving away from the filter plate 1, forming an intermittent rubbing-removing-rubbing-removing... cycle. Each time it "rubs", the filter plate 1 is fixed and the frictional resistance between the fiber debris and the filter plate 1 is used to gradually rub the fiber debris into strips. At the same time, the rubbing plate 12 drives the strips of fiber debris to move upward, so that they leave the wastewater and the filter plate 1. Moreover, the fiber debris is gathered and "rubbed" into strips, which makes it easier to collect, thereby achieving the effect of stable cleaning of the fiber debris blocked by the filter plate 1.

[0025] In some embodiments, the filter plate 1 is provided with a plurality of protruding ribs 11 that are offset from the positions of the filter holes 10. The protruding ribs 11 are arranged laterally. The rubbing board 12 includes a substrate 123, which is made of metal. A soft substrate 124 is fixed on the side of the substrate 123 facing the filter plate 1. The soft substrate 124 is any one of rubber, silicone, silicone rubber, sponge, and foam.

[0026] If the end shaft 14 rotates at a high speed, that is, the contact between the rubbing plate 12 and the filter plate 1 is more frequent, the rapid movement of the rubbing plate 12 may cause splashing and noise from the slapping of wastewater, and may even cause vibration damage to the shaft seat 15 or the motor 18. Therefore, the rib 11 is provided. When the speed of the end shaft 14 decreases, the protruding structure of the rib 11 can be used to slow down the downward speed of the strip fiber debris on the surface of the filter plate 1, thereby preventing the strip fiber debris from rolling down rapidly after the rubbing plate 12 leaves, which would cause the rubbing plate 12 to be unable to stably drive the strip fiber debris to move upward. It should be noted that the strip fiber debris can stably pass over the rib 11 when moving upward.

[0027] Meanwhile, due to the protruding feature of the rib 11, a soft substrate 124 is provided to cooperate with it. The soft substrate 124 can adapt to the protrusion of the rib 11 and deform itself when in contact with the rib 11 to ensure complete contact with the surface of the filter plate 1, so that the rubbing plate 12 can stably "rub" the blocked fiber debris into strips and aggregate.

[0028] In some embodiments, tripods 110 are installed on the left and right sides of the back of the filter plate 1. The tripods 110 are fixed inside the drainage ditch 2000. A guide rail 112 is fixed on the back of the filter plate 1 at the position corresponding to the tripods 110. A slider 113 is installed on the guide rail 112 and slides along the guide rail 112. The slider 113 is fixed to the tripods 110. A sealing strip 115 is installed between the side of the filter plate 1 and the inner wall of the drainage ditch 2000. The sealing strip 115 is a thin sheet of fluororubber. The two sides of the sealing strip 115 are fixed to the drainage ditch 2000 and the filter plate 1 at the corresponding positions. A vibration motor 111 is installed on the back of the filter plate 1. The vibration motor 111 is a linear vibration motor. The vibration direction is the same as the sliding direction of the slider 113, that is, the same as the tilting direction of the filter plate 1. A waterproof sealing box 114 is installed on the filter plate 1 outside the vibration motor 111. The vibration motor 111 is installed inside the waterproof sealing box 114.

[0029] The filter plate 1 can be driven by the vibrating motor 111 to vibrate linearly, and the vibration direction is limited by the slider 113 and the guide rail 112 to keep it consistent with the tilt direction of the filter plate 1. When the rubbing plate 12 rotates to contact the filter plate 1, the filter plate 1 vibrates downward and forward. When the rubbing plate 12 leaves the filter plate 1, the filter plate 1 vibrates upward and backward. The vibration frequency of the filter plate 1 is matched with the cyclic rotation period of the rubbing plate 12. When the rubbing board 12 comes into contact with the filter plate 1, the rubbing board 12 is inclined upward, while the filter plate 1 is inclined downward, forming opposite directions of movement. This opposite movement is more conducive to "rubbing" and gathering the fiber debris into strips, and the looseness of the rubbed fiber debris strips is reduced, making them less likely to disperse.

[0030] In some embodiments, the contact edge between the rib 11 and the filter plate 1 is provided with an arc-shaped chamfer 122, and a plurality of equally spaced protrusions 125 are integrally formed and fixed on the side of the soft substrate 124 facing the filter plate 1. The side of the protrusions 125 corresponding to the rotation direction of the rubbing board 12 is provided with an inwardly concave arc surface 126 structure.

[0031] The curved chamfer 122 prevents some fiber debris from accumulating in the corners of the ribs 11 and the filter plate 1, and also prevents the small corners from being effectively carried out by the scrubbing plate 12. At the same time, the scrubbing plate 12 is provided with protruding teeth 125 and a curved surface 126 that cooperates with the ribs 11, which can better scrape off the fiber debris at the curved chamfer 122 position.

[0032] In some embodiments, a collection plate 116 is fixed to the rear side of the top of the filter plate 1. The collection plate 116 is inclined downward to the right. Rollers 120 are installed at both the left and right ends above the collection plate 116. Rubber belts 118 are installed on the left and right rollers 120. Multiple scraper strips 119 are integrally formed and fixed on the rubber belts 118 at equal intervals. The scraper strips 119 abut against the top surface of the collection plate 116. A motor 121 is installed on the right side of the drainage ditch 2000 at one end of the roller 120. The output end of the motor 121 is fixedly connected to the roller 120 through a coupling. A guide plate 117 is fixed on the right side of the drainage ditch 2000 at the lower position of the collection plate 116. The guide plate 117 is inclined downward to the right.

[0033] When the rubbing board 12 rubs the fiber debris into strips and moves it upward along the filter plate 1, it eventually carries it to the collection plate 116. The motor 121 is turned on to drive the rotating roller 120 to rotate, which in turn causes the rubber belt 118 to rotate around the rotating roller 120. This causes the scraper 119 to scrape the fiber debris strips on the collection plate 116 to the position of the guide plate 117, and finally guide them to fall down. At this point, a container can be used for centralized collection.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A textile dyeing and printing wastewater treatment device, comprising a drainage ditch (2000), characterized in that, The drainage ditch (2000) is equipped with a three-stage treatment group (1000), which includes three sets of filter plates (1). All three sets of filter plates (1) are located in the drainage ditch (2000). The filter plates (1) are inclined in the direction of water flow, and dense filter holes (10) are opened on the filter plates (1). The diameter of the filter holes (10) of the three-stage treatment group (1000) decreases sequentially along the direction of water flow. A rubbing plate (12) is installed on the front side of the filter plate (1). The rubbing plate (12) moves back and forth in a cyclical motion. The rubbing plate (12) comes into intermittent contact with the filter plate (1) during the reciprocating cyclical motion. After intermittent contact with the filter plate (1), the rubbing plate (12) moves upward along the surface of the filter plate (1).

2. The textile dyeing and printing wastewater treatment device according to claim 1, characterized in that, The front and rear ends of the washboard (12) are movably connected to the fixed frame (13), and the front and rear fixed frames (13) are fixed with the end shaft (14) at both ends. The cross section of the end shaft (14) is set in a Z-shaped structure. One end of the end shaft (14) is inserted and connected at the center of the end of the fixed frame (13). A bearing seat (15) is installed on the drainage ditch (2000) corresponding to the end shaft (14). The other end of the end shaft (14) is installed with the bearing seat (15). The washboard (12) rotates eccentrically back and forth around the bearing seat (15) as the axis. A motor (18) is installed above the end shaft (14) on the right side of the drainage ditch (2000). A sprocket (17) is installed on the output end of the motor (18) and the end shaft (14) at the corresponding position. A transmission chain (16) is installed on the sprocket (17) of the output end and the end shaft (14). A frame (19) is installed on the drainage ditch (2000) at the bottom of the motor (18). The motor (18) is supported by the frame (19).

3. The textile dyeing and printing wastewater treatment device according to claim 1, characterized in that, The filter plate (1) is inclined in the direction of water flow, with an inclination angle of 20°-35°.

4. The textile dyeing and printing wastewater treatment device according to claim 3, characterized in that, The filter plate (1) has multiple protruding ribs (11) pre-set on it, and the protruding ribs (11) are arranged horizontally.

5. The textile dyeing and printing wastewater treatment device according to claim 4, characterized in that, The rubbing board (12) includes a base plate (123), and a soft substrate (124) is fixed on the side of the base plate (123) facing the filter plate (1). The soft substrate (124) is any one of rubber, silicone, silicone rubber, sponge, and foam.

6. The textile dyeing and printing wastewater treatment device according to claim 3, characterized in that, A vibration motor (111) is installed on the back of the filter plate (1). The vibration motor (111) is a linear vibration motor, and the linear vibration direction of the linear vibration motor is consistent with the tilt direction of the filter plate (1).

7. The textile dyeing and printing wastewater treatment device according to claim 6, characterized in that, Tripods (110) are installed on the back of the filter plate (1) on both the left and right sides. A guide rail (112) is fixed on the back of the filter plate (1) corresponding to the position of the tripod (110). A slider (113) is installed on the guide rail (112) and slides along the guide rail (112). The slider (113) is fixed to the tripod (110). A sealing strip (115) is installed between the side of the filter plate (1) and the inner wall of the drainage ditch (2000).

8. The textile dyeing and printing wastewater treatment device according to claim 5, characterized in that, The rib (11) and the filter plate (1) are connected by an arc-shaped chamfer (122). The soft substrate (124) has a plurality of equally spaced protruding teeth (125) integrally formed and fixed on the side facing the filter plate (1). The side of the protruding teeth (125) corresponding to the rotation direction of the rubbing board (12) is set with an inwardly concave arc surface (126) structure.

9. A textile dyeing and printing wastewater treatment device according to claim 1, characterized in that, A collection plate (116) is fixed to the rear side of the top of the filter plate (1), and the collection plate (116) is inclined downward to the right.

10. A textile dyeing and printing wastewater treatment device according to claim 9, characterized in that, Rollers (120) are installed at both the left and right ends of the collection plate (116). Rubber belts (118) are installed on the left and right rollers (120). Multiple scraper strips (119) with equal spacing are fixed on the rubber belts (118). The scraper strips (119) abut against the top surface of the collection plate (116). A second motor (121) is installed on the right side of the drainage ditch (2000) at one end of the roller (120). The output end of the second motor (121) is fixedly connected to the roller (120) through a coupling.

Images