Textile printing and dyeing wastewater recovery treatment equipment

Abstract

The invention discloses textile printing and dyeing wastewater recovery treatment equipment which comprises a frame, a supporting cylinder and a rotating cylinder, the supporting cylinder is rotationally installed in the frame, the rotating cylinder is supported on the supporting cylinder, the rotating cylinder is rotatable, end covers are fixed to the two ends of the rotating cylinder, gear ends are fixed to the outer portions of the end covers, water diversion pipes are inserted in the axes of the gear ends, and the water diversion pipes are connected with the supporting cylinder. And the water conduit is used for conveying wastewater to pass through the rotary drum. The inner filter cylinder and the inner cleaning part in the rotary cylinder rotate along with the rotary cylinder, the inner net cylinder does not rotate and does telescopic motion, and cleaning pieces correspond to inner baffle rings, so that when the cleaning pieces clean fluff on the inner side of the inner net cylinder, it is ensured that no waste water moves outwards at the cleaning position, and the cleaning effect is good. And during the reciprocating motion of the inner net cylinder, different positions of the inner net cylinder are cleaned, so that the problem of filtration is solved, and the problem of blockage is also avoided.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a textile printing and dyeing wastewater recycling and treatment device. Background Art

[0002] Printing and dyeing, also known as dyeing and finishing, is a processing method in the textile process. It is also a general term for pre-treatment, dyeing, printing, finishing, washing, etc. The surface of rayon is colored by dyes to change the color of rayon, improve the color diversity during textile production, and enhance the textile effect. In the silk printing and dyeing process, the printing and dyeing wastewater is generally recycled and treated through treatment equipment to reduce the pollution of wastewater to the environment. The treatment equipment includes a pre-treatment unit that uses a grid to initially remove large particles, sediments and other impurities in the wastewater, a biological treatment unit that uses a biofilm method to convert organic matter in the wastewater into relatively stable inorganic matter, a deep treatment unit that further treats the wastewater through adsorption to remove difficult-to-degrade organic matter and color substances, and a post-treatment unit that is used to perform final adjustment and purification of the treated water quality to meet the reuse or discharge standards. Then the treatment equipment mainly relies on a combination of physical, chemical and biological methods to remove or convert pollutants in the wastewater into harmless substances.

[0003] In the existing treatment equipment, the pretreatment unit uses a grid to preliminarily remove large particles, sediments and other impurities in the wastewater. Generally, the impurities in the wastewater are salvaged, separated and removed by the grid. The grid blocks the generated fluff, especially the fluff. After the fluff is blocked by the grid, the filter holes of the grid will be blocked. The dense fluff will block the filter holes to a higher degree. Even if the wastewater is salvaged through the grid, the wastewater is not filtered well. The fluff is collected during the filtration and will return to the wastewater through the filter holes. Therefore, when the fluff needs to be cleaned, it needs to be processed without wastewater. Waiting for the wastewater to be filtered before cleaning the fluff will make the filtration effect poor. Based on this, it is necessary to clean the fluff synchronously during the filtration of the wastewater, and prevent the fluff from returning to the filtered wastewater. Summary of the invention

[0004] The purpose of the present invention is to provide a textile printing and dyeing wastewater recovery and treatment device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a textile printing and dyeing wastewater recovery and treatment equipment, comprising a frame, a support cylinder and a rotating drum, the support cylinder is rotatably installed in the frame, the rotating drum is supported on the support cylinder, the rotating drum is rotatable, end covers are fixed at both ends of the rotating drum, a gear end is fixed outside the end cover, a water diversion pipe is inserted on the axis of the gear end, the water diversion pipe is used to transmit the wastewater through the rotating drum, an inner filter cylinder and an inner support frame are arranged inside the rotating drum, an inner mesh cylinder is arranged inside the inner filter cylinder, an inner cleaning part is arranged inside the inner mesh cylinder, the inner cleaning part is used to clean the fluff on the inner wall of the inner mesh cylinder, and the inner filter cylinder is used to block the cleaned outer side of the inner mesh cylinder to prevent the fluff from moving out with the wastewater.

[0006] Furthermore, a bracket is fixed on the outside of the water diversion pipe, and the bracket is fixed on the frame. The bracket is used to support the water diversion pipe. A motor is provided on the outside of the gear end at one end, and the motor is installed on the frame to drive the gear end to rotate.

[0007] Furthermore, the inner filter cylinder and the inner support frame are respectively fixed to the inner sides of the end covers at both ends, the inner filter cylinder is abutted against the inner support frame, and the inner support frame is hollowed out to connect the rotating cylinder with the water diversion pipe at one end, and the water diversion pipe at the other end is connected to the inside of the inner net cylinder, so that the wastewater moves from the inner net cylinder to the outside of the inner filter cylinder, and then moves out from the water diversion pipe at one end.

[0008] Furthermore, the outer wall of the inner filter cartridge is provided with an array of water outlet grooves, the water outlet grooves are used for discharging wastewater, and the inner wall of the inner filter cartridge is fixed with an array of inner retaining rings, the inner retaining rings and the water outlet grooves are arranged at intervals;

[0009] The outer wall of the inner net cylinder is provided with a circle of filter screen, the outer side of the inner net cylinder is in contact with the inner retaining ring of the array, and the inner cleaning part is used for cleaning the inner net cylinder which is blocked on the inner side of the inner retaining ring.

[0010] Furthermore, one end of the inner net tube is sleeved with the water diversion pipe, and the outer wall of the water diversion pipe has a guide edge, and one end of the inner net tube that matches the guide edge has a polygonal opening, and the water diversion pipe and the guide edge are sleeved in the polygonal opening;

[0011] A driving ring is also fixed at one end of the inner net cylinder. The outer side of the driving ring is concave and convex, and its outer side surface is provided with a push rod. The push rod is fixed to the end cover. When the push rod rotates, it cooperates with the concave and convex surface of the outer side of the driving ring to push the inner net cylinder to move back and forth. A supporting spring for supporting the inner net cylinder is fixed at the other end of the inner net cylinder. The supporting spring is supported in the inner filter cylinder, and the supporting spring is used to reset the inner net cylinder after movement.

[0012] Furthermore, a cavity is provided between the ends of the inner filter cylinder and the inner mesh cylinder, and the support spring is arranged inside the cavity.

[0013] Furthermore, an inner shaft extending into the inner net cylinder is fixed to the inner end surface of the inner filter cylinder, a polygonal hole is opened on the end surface of the inner shaft, the inner cleaning part includes a polygonal shaft embedded in the polygonal hole, a cleaning rod is fixed to the outer end of the polygonal shaft, a plurality of cleaning sheets arranged in an array are fixed to the outer side of the cleaning rod, and the cleaning sheets correspond one-to-one to the inner retaining ring.

[0014] Furthermore, the cleaning sheet includes a ring body, and rigid fluff is fixed to the outer side of the ring body, and the fluff is used to clean the fluff on the inner wall of the inner net tube;

[0015] The inside of the ring body is provided with an integrally formed triangular piece and a triangular opening, the triangular piece is provided with a filter hole, the triangular piece is fixed to the cleaning rod, and the triangular openings of adjacent ring bodies are arranged in a staggered manner.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0017] 1. The inner filter cylinder and the inner cleaning part inside the drum rotate with the drum, while the inner net cylinder remains stationary and performs telescopic motion. Since the cleaning sheet corresponds to the inner retaining ring, when the cleaning sheet cleans the fluff inside the inner net cylinder, it ensures that the cleaning position does not have wastewater moving outward, and avoids the fluff being filtered out with the wastewater as much as possible. During the reciprocating motion of the inner net cylinder, different positions of the inner net cylinder can be cleaned, which solves the problem of filtration and avoids the problem of clogging.

[0018] 2. The motor drives the inner net cylinder to clean during filtering, without the need for additional driving, thus simplifying the structure and making it less prone to damage.

[0019] 3. Triangular pieces are arranged alternately, and the wastewater is initially filtered by the triangular pieces so that the wastewater can fill the inner net cylinder, thereby avoiding excessive pressure in the local part of the inner net cylinder, which may cause the fluff to be squeezed out of the inner net cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of a half-section structure of a rotary drum according to the present invention;

[0023] Figure 3It is a schematic diagram of the structure of the inner filter cartridge and the inner support frame of the present invention;

[0024] Figure 4 It is a schematic diagram of the planar structure of the inner filter cartridge of the present invention;

[0025] Figure 5 This is a schematic diagram of a half-section structure of the inner filter cartridge of the present invention;

[0026] Figure 6 It is a schematic diagram of the end cover separation structure at one end of the present invention;

[0027] Figure 7 This is a schematic diagram of a half-section structure of the inner net tube of the present invention;

[0028] Figure 8 It is a schematic diagram of the separation structure of the cleaning part in the present invention;

[0029] Fig. 9 The present invention Figure 8 A is a schematic diagram of the partially enlarged structure of the middle part;

[0030] Fig.10 It is a schematic diagram of the half-section plane structure of the present invention.

[0031] In the figure: 1. frame; 2. support cylinder; 3. rotating cylinder; 4. end cover; 5. gear end; 6. water guide pipe; 7. bracket; 8. motor; 9. inner filter cylinder; 91. water outlet trough; 92. inner retaining ring; 10. inner support frame; 11. inner net cylinder; 111. polygonal mouth; 112. driving ring; 113. guide edge; 114. push rod; 115. supporting spring; 12. inner cleaning part; 121. cavity; 122. inner shaft; 123. polygonal hole; 124. polygonal shaft; 125. cleaning rod; 13. cleaning sheet; 131. ring body; 132. fluff; 133. triangular sheet; 134. triangular mouth. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 10The present invention provides a technical solution. When cleaning the fluff, it is necessary to process it without wastewater. Waiting for the wastewater to be filtered before cleaning the fluff will make the filtering effect poor. It is necessary to clean the fluff synchronously during the filtration of the wastewater, and prevent the fluff from returning to the filtered wastewater. A textile printing and dyeing wastewater recycling and treatment device is proposed, including a frame 1, a support cylinder 2 and a rotating cylinder 3. The support cylinder 2 is rotatably installed in the frame 1, and the rotating cylinder 3 is supported on the support cylinder 2. The rotating cylinder 3 is rotatable. End covers 4 are fixed at both ends of the rotating cylinder 3. A gear end 5 is fixed outside the end cover 4. The axis of the gear end 5 A water diversion pipe 6 is inserted on the top, and the water diversion pipe 6 is used to transmit the waste water through the rotary drum 3. An inner filter cylinder 9 and an inner support frame 10 are arranged inside the rotary drum 3. An inner mesh cylinder 11 is arranged inside the inner filter cylinder 9. An inner cleaning part 12 is arranged inside the inner mesh cylinder 11. The inner cleaning part 12 is used to clean the fluff on the inner wall of the inner mesh cylinder 11. The inner filter cylinder 9 is used to block the cleaned outer side of the inner mesh cylinder 11 to prevent the fluff from moving outward with the waste water. The waste water enters from the water diversion pipe 6 at one end, moves out from the inner filter cylinder 9 through the inner mesh cylinder 11, and then passes through the inner support frame 10 and is discharged from the water diversion pipe 6 at the other end. The waste water is filtered inside the inner mesh cylinder 11.

[0034] like Figure 1 As shown, a bracket 7 is fixed on the outside of the water pipe 6, and the bracket 7 is fixed on the frame 1. The bracket 7 is used to support the water pipe 6. A motor 8 is provided on the outside of the gear end 5 at one end. The motor 8 is installed on the frame 1 and is used to drive the gear end 5 to rotate. The water pipes 6 at both ends remain stationary, and the motor 8 drives the gear end 5 and the end cover 4 to rotate, and the rotating drum 3 rotates accordingly.

[0035] like Figure 5 As shown, the inner filter cartridge 9 and the inner support frame 10 are respectively fixed to the inner sides of the end covers 4 at both ends, and the inner filter cartridge 9 rotates with the end covers 4. The inner filter cartridge 9 abuts against the inner support frame 10. The inner support frame 10 is hollowed out and used to connect the rotating drum 3 with the water diversion pipe 6 at one end, and the water diversion pipe 6 at the other end is connected to the inside of the inner net cylinder 11, so that the waste water moves from the inner net cylinder 11 to the outside of the inner filter cartridge 9, and then moves out from the water diversion pipe 6 at one end. It should be noted that the inner support frame 10 is used to support the inner filter cartridge 9, while also keeping the water diversion pipe 6 at one end connected to the inside of the rotating drum 3, and maintaining stability during the rotation of the rotating drum 3.

[0036] like Figure 5As shown, the outer wall of the inner filter cylinder 9 is provided with an array of water outlet grooves 91, and the water outlet grooves 91 are used for discharging waste water. An array of inner retaining rings 92 are fixed on the inner wall of the inner filter cylinder 9, and the inner retaining rings 92 are arranged at intervals with the water outlet grooves 91. The water outlet grooves 91 connect the inner net cylinder 11 with the inside of the rotating drum 3, and are used to discharge the waste water inside the inner net cylinder 11 to avoid blockage. The inner retaining ring 92 contacts the inner net cylinder 11, so that the position where the inner net cylinder 11 is contacted prevents the waste water from moving outward, and the inner net cylinder 11 blocked by the inner retaining ring 92 can be cleaned by the inner cleaning part 12. During the cleaning process, it is easy to cause the fluff to move out of the inner net cylinder 11. After being blocked, the outward water flow is avoided, and the fluff is prevented from moving outward during the cleaning process.

[0037] like Figure 5 As shown, there is a circle of filter screen on the outer wall of the inner net tube 11, so that the waste water is filtered from the inside to the outside. The outer side of the inner net tube 11 is in contact with the inner retaining ring 92 of the array, and the inner cleaning part 12 is used to clean the inner net tube 11 that is blocked on the inner side of the inner retaining ring 92.

[0038] like Figure 6 As shown, one end of the inner net tube 11 is sleeved with the water diversion pipe 6, and the outer wall of the water diversion pipe 6 has a guide edge 113, and one end of the inner net tube 11 that cooperates with the guide edge 113 has a polygonal opening 111, and the water diversion pipe 6 and the guide edge 113 are sleeved in the polygonal opening 111. When the water diversion pipe 6 remains stationary, the water diversion pipe 6 and the guide edge 113 cooperate with the polygonal opening 111, and the position of the polygonal opening 111 is maintained to avoid rotation. When the inner net tube 11 performs telescopic movement, the polygonal opening 111 slides along the water diversion pipe 6 and the guide edge 113, so that the inner net tube 11 can perform telescopic reciprocating movement. In addition, under the support of the outer inner retaining ring 92, the inner net tube 11 can be prevented from being deformed.

[0039] like Figure 6 As shown, a circle of driving ring 112 is fixed to one end of the inner net cylinder 11. The outer side of the driving ring 112 is concave-convex, and its outer side surface is provided with a push rod 114. The push rod 114 is fixed to the end cover 4. When the push rod 114 rotates with the end cover 4, the push rod 114 moves along the end face of the driving ring 112. The end face of the driving ring 112 is concave-convex, so that the inner net cylinder 11 can perform reciprocating motion. When the push rod 114 rotates, it cooperates with the concave-convex surface of the outer side of the driving ring 112 to push the inner net cylinder 11 to move back and forth. A support spring 115 for supporting the inner net cylinder 11 is fixed to the other end of the inner net cylinder 11. The support spring 115 is supported in the inner filter cylinder 9, and the support spring 115 is used to reset the inner net cylinder 11 after movement.

[0040] like Figure 8As shown, there is a cavity 121 between the ends of the inner filter cylinder 9 and the inner net cylinder 11, and the support spring 115 is arranged inside the cavity 121, so that the inner net cylinder 11 can perform telescopic movement, and there is a certain space, and the support spring 115 also has an installation space.

[0041] like Figure 8 As shown, an inner shaft 122 extending into the inner net cylinder 11 is fixed to the inner end surface of the inner filter cylinder 9, and a polygonal hole 123 is opened on the end surface of the inner shaft 122. The inner cleaning part 12 includes a polygonal shaft 124 embedded in the polygonal hole 123. A cleaning rod 125 is fixed to the outer end of the polygonal shaft 124. A plurality of cleaning sheets 13 arranged in an array are fixed to the outer side of the cleaning rod 125. The cleaning sheets 13 correspond to the inner retaining ring 92 one by one. When the inner net cylinder 11 telescopes, the inner filter cylinder 9 and the inner cleaning part 12 cooperate with each other and can only rotate to clean the fluff on the inner wall of the inner net cylinder 11.

[0042] like Fig. 9 As shown, the cleaning sheet 13 includes a ring body 131, and rigid fluff 132 is fixed to the outside of the ring body 131. The fluff 132 is used to clean the fluff on the inner wall of the inner net cylinder 11. The fluff 132 is used to brush off the fluff to avoid it from adhering to the inner wall of the inner net cylinder 11. At the same time, during the cleaning process, the inner net cylinder 11 reciprocates and is cleaned reciprocally, ensuring that the position after cleaning can filter the wastewater, avoiding the increase of internal water pressure as much as possible, and avoiding squeezing out the fluff.

[0043] like Fig.10 As shown, the inside of the ring body 131 has an integrally formed triangular piece 133 and a triangular opening 134, the triangular piece 133 has a filter hole, the triangular piece 133 is fixed to the cleaning rod 125, and the triangular openings 134 of adjacent ring bodies 131 are staggered. The triangular piece 133 is used to block the fluff, but the waste water and the fluff can move inward from the triangular openings 134. The staggered triangular openings 134 of adjacent ring bodies 131 ensure that the waste water passes through, and the fluff is blocked on the triangular piece 133 as much as possible, reducing the fluff from adhering to the inner net cylinder 11, and also avoiding the increase of water pressure at a local position inside the inner net cylinder 11, which causes the fluff to be squeezed out of the inner net cylinder 11. It should be noted that one end of the driving ring 112 of the inner net cylinder 11 is detachable, and the inner net cylinder 11 can be opened, and the internal cleaning part 12 inserted inside can be taken out for cleaning, so as to avoid excessive accumulation of fluff and affect the filtering effect.

[0044] The working principle of the present invention is as follows: the motor 8 drives the gear end 5 and the drum 3 to rotate, the water pipes 6 at both ends are used to transmit wastewater, and the wastewater is processed through the drum 3, wherein the water pipes 6 at both ends remain fixed, the inner filter drum 9 and the inner cleaning part 12 inside the drum 3 rotate with the drum 3, the inner net drum 11 is limited by the water pipe 6 at one end, and remains fixed, and rotates through the push rod 114, the driving ring 112 remains stationary, and the push rod 114 moves along the concave and convex surface of the driving ring 112, squeezes the driving ring 112, and causes the driving ring 112 to drive the inner net drum 11 to telescopically move along the inner filter drum 9, and under the support spring The inner mesh tube 11 is reset under the action of the spring 115, so that the inner baffle ring 92 is covered at different positions of the inner mesh tube 11, so that the different positions of the inner mesh tube 11 cooperate with the water outlet groove 91, so that the water in the inner mesh tube 11 moves out from the water outlet groove 91 to complete the filtration. Since the cleaning sheet 13 corresponds to the inner baffle ring 92, when the cleaning sheet 13 cleans the fluff on the inside of the inner mesh tube 11, it is ensured that the cleaning position will not have waste water moving outward, and the fluff is avoided as much as possible from being filtered out with the waste water. In addition, during the reciprocating motion of the inner mesh tube 11, different positions of the inner mesh tube 11 can be cleaned, which solves the filtration problem and avoids the problem of clogging.

[0045] Secondly, by driving the motor 8, the inner net cylinder 11 can be cleaned during filtering without the need for additional driving action, thereby simplifying the structure and making it less prone to damage.

[0046] Adjacent ring bodies 131 have triangular pieces 133 arranged alternately, so that when wastewater enters the inner net tube 11, it can be initially filtered by the triangular pieces 133, so that the wastewater can fill the inner net tube 11, avoiding excessive pressure in the local position of the inner net tube 11, which will cause the fluff to be squeezed out of the inner net tube 11.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A textile printing and dyeing wastewater recovery and treatment device, comprising a frame (1), a support cylinder (2) and a rotating drum (3), wherein the support cylinder (2) is rotatably mounted in the frame (1), the rotating drum (3) is supported on the support cylinder (2), the rotating drum (3) is rotatable, both ends of the rotating drum (3) are fixed with end covers (4), a gear end (5) is fixed outside the end cover (4), a water diversion pipe (6) is inserted on the axis of the gear end (5), and the water diversion pipe (6) is used to transmit wastewater through the rotating drum (3), characterized in that: The rotating drum (3) is provided with an inner filter drum (9) and an inner support frame (10), the inner filter drum (9) is provided with an inner net drum (11), the inner net drum (11) is provided with an inner cleaning portion (12), the inner cleaning portion (12) is used to clean the fluff on the inner wall of the inner net drum (11), and the inner filter drum (9) is used to block the cleaned outer side of the inner net drum (11) to prevent the fluff from moving out with the wastewater.

2. The textile printing and dyeing wastewater recycling and treatment equipment according to claim 1 is characterized in that: A bracket (7) is fixed on the outside of the water diversion pipe (6), and the bracket (7) is fixed on the frame (1). The bracket (7) is used to support the water diversion pipe (6). A motor (8) is provided on the outside of the gear end (5) at one end, and the motor (8) is installed on the frame (1) and is used to drive the gear end (5) to rotate.

3. The textile printing and dyeing wastewater recycling and treatment equipment according to claim 1 is characterized in that: The inner filter cylinder (9) and the inner support frame (10) are respectively fixed to the inner sides of the end covers (4) at both ends. The inner filter cylinder (9) abuts against the inner support frame (10). The inner support frame (10) is hollowed out and used to connect the rotating cylinder (3) with the water diversion pipe (6) at one end. The water diversion pipe (6) at the other end is connected with the inside of the inner net cylinder (11), so that the wastewater moves from the inner net cylinder (11) to the outside of the inner filter cylinder (9) and then moves out from the water diversion pipe (6) at one end.

4. The textile printing and dyeing wastewater recycling and treatment equipment according to claim 1 is characterized in that: The outer wall of the inner filter cylinder (9) is provided with water outlet grooves (91) arranged in an array, and the water outlet grooves (91) are used to discharge waste water. The inner wall of the inner filter cylinder (9) is fixed with inner retaining rings (92) arranged in an array, and the inner retaining rings (92) and the water outlet grooves (91) are arranged at intervals. The outer wall of the inner net cylinder (11) is provided with a circle of filter screen, the outer side of the inner net cylinder (11) is in contact with the inner retaining ring (92) of the array, and the inner cleaning part (12) is used to clean the inner net cylinder (11) that is blocked on the inner side of the inner retaining ring (92).

5. The textile printing and dyeing wastewater recycling and treatment equipment according to claim 4 is characterized in that: One end of the inner net tube (11) is sleeved with the water diversion pipe (6), and the outer wall of the water diversion pipe (6) is provided with a guide edge (113), and one end of the inner net tube (11) that matches the guide edge (113) is provided with a polygonal opening (111), and the water diversion pipe (6) and the guide edge (113) are sleeved in the polygonal opening (111); A driving ring (112) is also fixed to one end of the inner net cylinder (11). The outer side of the driving ring (112) is concave-convex and has a push rod (114) on its outer side. The push rod (114) is fixed to the end cover (4). When the push rod (114) rotates, it cooperates with the concave-convex surface on the outer side of the driving ring (112) to push the inner net cylinder (11) to move back and forth. A support spring (115) for supporting the inner net cylinder (11) is fixed to the other end of the inner net cylinder (11). The support spring (115) is supported in the inner filter cylinder (9). The support spring (115) is used to reset the inner net cylinder (11) after movement.

6. The textile printing and dyeing wastewater recycling and treatment equipment according to claim 5 is characterized in that: A cavity (121) is also provided between the ends of the inner filter cylinder (9) and the inner mesh cylinder (11), and the support spring (115) is arranged inside the cavity (121).

7. The textile printing and dyeing wastewater recycling and treatment equipment according to claim 5 is characterized by: An inner shaft (122) extending into the inner net cylinder (11) is fixed to the inner end surface of the inner filter cylinder (9); a polygonal hole (123) is provided on the end surface of the inner shaft (122); the inner cleaning portion (12) comprises a polygonal shaft (124) embedded in the polygonal hole (123); a cleaning rod (125) is fixed to the outer end of the polygonal shaft (124); a plurality of cleaning sheets (13) arranged in an array are fixed to the outer side of the cleaning rod (125); the cleaning sheets (13) correspond one to one with the inner retaining ring (92).

8. The textile printing and dyeing wastewater recycling and treatment equipment according to claim 7 is characterized in that: The cleaning sheet (13) comprises a ring body (131), and rigid fluff (132) is fixed to the outer side of the ring body (131), and the fluff (132) is used to clean the fluff on the inner wall of the inner net cylinder (11); The inside of the ring body (131) is provided with an integrally formed triangular piece (133) and a triangular opening (134); the triangular piece (133) is provided with a filter hole; the triangular piece (133) is fixed to the cleaning rod (125); and the triangular openings (134) of adjacent ring bodies (131) are arranged in a staggered manner.

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