Polyester fabric dyeing and finishing wastewater treatment and recovery device

Abstract

The invention relates to the technical field of wastewater multi-stage treatment and recycling, and particularly discloses a polyester fabric dyeing and finishing wastewater treatment and recovery device which comprises a regulating tank, a primary sedimentation tank, a microbial flocculation reaction tank, a secondary sedimentation tank and a clarification tank which are sequentially arranged, flocculation receiving nets are movably arranged in the primary sedimentation tank, the microbial flocculation reaction tank and the secondary sedimentation tank, and lifting mechanisms matched with the three flocculation receiving nets are mounted on the front sides of the primary sedimentation tank, the microbial flocculation reaction tank and the secondary sedimentation tank. Secondary sedimentation removal of pollutants is achieved through the primary sedimentation tank and the secondary sedimentation tank, a biological purification mode is introduced through the microbial flocculation reaction tank and combined with traditional physical and chemical modes, and ozone is introduced through the clarification tank for oxidation disinfection treatment, so that the advantages of various treatment methods are brought into full play, and the treatment effect is good. And pollutants can be removed to the greatest extent.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater multi-stage treatment and recycling, and specifically relates to a polyester fabric dyeing and finishing wastewater treatment and recovery device. Background Art

[0002] Polyester fabric is a kind of fabric made of polyester fiber as the main raw material. It has attracted much attention due to its excellent performance and wide application. The breaking strength and abrasion resistance of polyester fabric are better than those of natural fiber fabrics such as cotton and linen, and it has a long service life. Polyester fabric has good elastic recovery ability, is not easy to deform, and has good shape retention. It is suitable for making clothing and home textile products that need to maintain a crisp appearance. Polyester fabric has poor moisture absorption, good water repellency and quick drying properties. It is easy to dry after washing and is suitable for a fast-paced lifestyle. Polyester fabric has good stability to acids and alkalis, is not easily corroded, and is suitable for use in chemical environments.

[0003] Polyester fabric dyeing and finishing is the process of putting polyester fibers through a series of physical and chemical treatments to give them a good appearance, feel and performance.

[0004] Wastewater is inevitably generated during the dyeing and finishing process of polyester fabrics. Currently, the treatment and recovery of dyeing and finishing wastewater are mostly achieved by physical and chemical methods, which makes it difficult for the wastewater to reach a good water quality and thus achieve standard discharge and reclaimed water reuse, and there are certain shortcomings. Summary of the invention

[0005] The purpose of the present invention is to provide a polyester fabric dyeing and finishing wastewater treatment and recovery device to solve the problem that the treatment and recovery of dyeing and finishing wastewater in the prior art is mostly achieved by physical and chemical methods, which makes it difficult for the wastewater to achieve good water quality and thus achieve standard discharge and reclaimed water reuse.

[0006] To achieve the above object, the present invention provides the following technical solutions: A polyester fabric dyeing and finishing wastewater treatment and recovery device comprises a regulating tank, a primary sedimentation tank, a microbial flocculation reaction tank, a secondary sedimentation tank and a clarification tank which are arranged in sequence, wherein a coarse grid filter is installed in the regulating tank, and flocculation receiving nets are movably installed in the primary sedimentation tank, the microbial flocculation reaction tank and the secondary sedimentation tank, and a lifting mechanism matching the three flocculation receiving nets is installed on the front side of the primary sedimentation tank, the microbial flocculation reaction tank and the secondary sedimentation tank, so as to facilitate periodic lifting and removal of flocculates in the primary sedimentation tank, the microbial flocculation reaction tank and the secondary sedimentation tank; a plug-in assembly is arranged on the lifting mechanism, a clarification tank cover is movably installed on the top of the clarification tank, and a linking assembly matching the plug-in assembly is installed on the clarification tank cover, so as to determine whether to lift up the clarification tank cover synchronously when lifting the three flocculation receiving nets.

[0007] Preferably, the regulating tank, the primary sedimentation tank, the microbial flocculation reaction tank, the secondary sedimentation tank and the clarification tank are connected to each other by a conveying assembly, and the conveying assembly consists of a transverse connecting pipeline and an electric pump on the connecting pipeline.

[0008] Preferably: an acid solution input pipe is installed on the back side of the regulating tank to adjust the pH of the wastewater in the regulating tank; a coagulant input pipe is installed on the back side of the primary sedimentation tank, a microbial liquid input pipe is installed on the back side of the microbial flocculation reaction tank, and a flocculation decolorant input pipe is installed on the back side of the secondary sedimentation tank. The coagulant input pipe, the microbial liquid input pipe, and the flocculation decolorant input pipe facilitate the wastewater to generate flocculation products in the primary sedimentation tank, the microbial flocculation reaction tank, and the secondary sedimentation tank to achieve the purpose of gradually purifying the wastewater body, and an ozone pump inlet pipe is installed on the back side of the clarification tank.

[0009] Preferably: the lifting mechanism includes an installation base located on the front side of the primary sedimentation tank, the microbial flocculation reaction tank and the secondary sedimentation tank, a vertical seat is installed on the top of the installation base, and a lifting beam is slidably arranged along the vertical direction on the front side of the vertical seat, and three L-shaped connecting seats are fixedly connected to the back side of the lifting beam at equal intervals, and the three L-shaped connecting seats are respectively inserted into the three rectangular openings on the vertical seat and then fixed to three flocculation receiving nets; two internal threaded sleeves are symmetrically installed on the lifting beam, and studs are respectively inserted and threaded in the two internal threaded sleeves, and two servo motors are fixed to the top of the vertical seat through two motor mounting brackets, and the output ends of the two servo motors are respectively fixed to the upper ends of the two studs through couplings.

[0010] Preferably, at least two telescopic rods are installed at intervals on the front side of the installation base plate, and the upper ends of the telescopic rods are fixedly connected to the bottom wall of the lifting beam.

[0011] Preferably, two bearing seats are symmetrically mounted on the mounting base plate, ball bearings are arranged in the two bearing seats, and the lower ends of the two studs are fixed to the inner rings of the two ball bearings by means of interference fit.

[0012] Preferably: the plug-in assembly includes a supporting baffle fixedly mounted on the lifting beam, and the supporting baffle is mounted on one end of the lifting beam close to the clarification tank cover, and a horizontal plug-in pipe is embedded in the middle of the supporting baffle.

[0013] Preferably: the link belt assembly includes a transmission box fixedly installed on the top of the clarification tank cover, an L-shaped rod is movably inserted into the side of the transmission box, a rotating shaft is rotatably installed in the transmission box, a part of the rotating shaft in the transmission box is fixedly sleeved with a gear, one end of the L-shaped rod extending into the transmission box is fixedly connected to a rack plate, and the rack plate is meshingly connected to the gear.

[0014] Preferably, a hand wheel is installed at one end of the rotating shaft extending out of the transmission box, and a grip portion of the hand wheel is provided with an anti-slip rubber sleeve to facilitate manual rotation of the hand wheel.

[0015] Preferably, a wastewater inlet pipe is installed on the side of the regulating tank facing away from the primary sedimentation tank, and a wastewater outlet pipe is installed on the side of the clarification tank facing away from the secondary sedimentation tank.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention introduces a coarse grid filter into the regulating tank, performs preliminary treatment on the wastewater through physical treatment, and introduces the wastewater into the regulating tank after coarse filtration. The wastewater is adjusted to a suitable pH by adding an acidic solution, and then the wastewater enters a primary sedimentation tank for primary flocculation, and then the wastewater enters a secondary sedimentation tank for secondary flocculation. Through chemical treatment, effective sedimentation and removal of pollutants in the wastewater are achieved; by adding a microbial flocculation reaction tank between the primary sedimentation tank and the secondary sedimentation tank, a biological treatment method is introduced, and combined with traditional physical and chemical methods, the advantages of various treatment methods are fully utilized, and pollutants can be removed to the greatest extent. Finally, ozone can be introduced through the clarification tank for oxidative disinfection treatment.

[0017] 2. The present invention adds flocculation receiving nets at the bottom of the primary sedimentation tank, the microbial flocculation reaction tank, and the secondary sedimentation tank, which are the three tanks where floccules will be produced, to receive the produced floccules. Then, with the help of the lifting mechanism, the three flocculation receiving nets are steadily lifted, so that the floccules produced in the primary sedimentation tank, the microbial flocculation reaction tank, and the secondary sedimentation tank can be periodically scooped up, which is convenient for cleaning operations. At the same time, the three flocculation receiving nets are lifted to improve the efficiency of the operation.

[0018] 3. The clarifier of the present invention introduces ozone for oxidative disinfection. In order to ensure the disinfection effect, a clarifier cover needs to be added to the clarifier. In order to regularly clean the clarifier, the clarifier cover can be connected to the lifting mechanism by connecting the connecting belt component with the plug-in component. In this way, when the lifting mechanism lifts up the three flocculation receiving nets, the clarifier cover can be lifted synchronously, eliminating the inconvenience of additionally opening the clarifier cover, which is labor-saving and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention; Figure 2 A top view of the present invention; Figure 3 It is a structural schematic diagram of the clarifier, the lifting mechanism, the clarifier cover, the linking assembly and the plug-in assembly of the present invention; Figure 4Schematic diagram of the connection of the clarifier, the clarifier cover and the associated component of the present invention; Figure 5 Schematic diagram of the main structure of the associated component on the clarifier cover of the present invention; Figure 6 Schematic diagram of the structure of the lifting mechanism of the present invention; Figure 7 Disassembly diagram of the primary sedimentation tank, the microbial flocculation reaction tank, the secondary sedimentation tank, the lifting cross beam, the L-shaped connecting seat, the internal thread sleeve and the three flocculation receiving nets of the present invention; Figure 8 Schematic diagram of the connection between the lifting cross beam and the three flocculation receiving nets of the present invention.

[0020] In the figure: 1, regulating tank; 101, acidic solution input pipe; 2, primary sedimentation tank; 201, coagulant input pipe; 3, microbial flocculation reaction tank; 301, microbial liquid medicine input pipe; 4, secondary sedimentation tank; 401, flocculation decolorizing agent input pipe; 5, clarifier; 501, ozone pump-in pipe; 6, conveying component; 601, connecting pipeline; 602, electric pump; 7, wastewater input pipe; 8, wastewater output pipe; 9, coarse grid filter screen; 10, flocculation receiving net; 11, lifting mechanism; 1101, installation base plate; 1102, vertical seat; 1103, lifting cross beam; 1104, L-shaped connecting seat; 1105, telescopic rod; 1106, internal thread sleeve; 1107, stud; 1108, servo motor; 1109, ball bearing; 12, clarifier cover; 13, associated component; 1301, L-shaped rod; 1302, transmission box; 1303, hand wheel; 1304, gear; 1305, rack plate; 1306, rotating shaft; 14, insertion component; 1401, support partition; 1402, insertion pipe. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0022] Reference Figures 1 - 3As shown, the present invention provides a polyester fabric dyeing and finishing wastewater treatment and recovery device, comprising a regulating tank 1, a primary sedimentation tank 2, a microbial flocculation reaction tank 3, a secondary sedimentation tank 4, and a clarification tank 5, which are arranged in sequence. The regulating tank 1, the primary sedimentation tank 2, the microbial flocculation reaction tank 3, the secondary sedimentation tank 4 and the clarification tank 5 are connected to each other through a conveying component 6, and the conveying component 6 is composed of a transverse connecting pipeline 601 and an electric pump 602 on the connecting pipeline 601. When the electric pump 602 is started, the water between two adjacent tanks can be transferred through the connecting pipeline 601. A coarse grid filter 9 is installed in the regulating tank 1, and a flocculation receiving net 10 is movably arranged in the primary sedimentation tank 2, the microbial flocculation reaction tank 3 and the secondary sedimentation tank 4. An acid solution input pipe 101 is installed on the back side of the regulating tank 1 to adjust the pH of the wastewater in the regulating tank 1; a coagulant input pipe 201 is installed on the back side of the primary sedimentation tank 2, and the coagulant can be made by mixing polyferric sulfate and chitosan-acrylamide graft copolymer in proportion; a microbial liquid input pipe 301 is installed on the back side of the microbial flocculation reaction tank 3; a flocculation decolorant input pipe 401 is installed on the back side of the secondary sedimentation tank 4, and the flocculation decolorant can be made by mixing attapulgite and carboxymethyl cellulose-acrylamide graft copolymer in proportion. The coagulant input pipe 201, the microbial liquid input pipe 301, and the flocculation decolorant input pipe 401 facilitate the generation of wastewater in the primary sedimentation tank 2, the microbial flocculation reaction tank 3, and the secondary sedimentation tank 4. Flocculation products are produced to achieve the purpose of gradually purifying the wastewater body, and an ozone pumping pipe 501 is installed on the back side of the clarifier 5 for pumping ozone for oxidation disinfection into the clarifier 5. A lifting mechanism 11 matching the three flocculation receiving nets 10 is installed on the front side of the primary sedimentation tank 2, the microbial flocculation reaction tank 3 and the secondary sedimentation tank 4, which is convenient for periodically lifting and removing the flocculants in the primary sedimentation tank 2, the microbial flocculation reaction tank 3 and the secondary sedimentation tank 4; a plug-in component 14 is arranged on the lifting mechanism 11, and a clarifier pool cover 12 is movably installed on the top of the clarifier 5, and a linking component 13 matching the plug-in component 14 is installed on the clarifier pool cover 12, which is used to decide whether to pull up the clarifier pool cover 1 synchronously when lifting the three flocculation receiving nets 10. 2; by introducing the coarse grid filter 9 into the regulating tank 1, the wastewater is initially treated by physical treatment, the wastewater is roughly filtered and then introduced into the regulating tank 1, and the wastewater is adjusted to a suitable pH by adding an acidic solution, and then the wastewater enters the primary sedimentation tank 2 for primary flocculation, and then the wastewater enters the secondary sedimentation tank 4 for secondary flocculation, and the pollutants in the wastewater are effectively precipitated and removed by chemical treatment; by adding a microbial flocculation reaction tank 3 between the primary sedimentation tank 2 and the secondary sedimentation tank 4, a biological treatment method is introduced, which is combined with traditional physical and chemical methods, so as to give full play to the advantages of various treatment methods, so that pollutants can be removed to the greatest extent, and finally ozone can be introduced through the clarification tank 5 for oxidative disinfection treatment.

[0023] In a further embodiment, referring to Figure 3 , Figures 6 - 8 As shown, the lifting mechanism 11 includes a mounting base 1101 located in front of the primary sedimentation tank 2, the microbial flocculation reaction tank 3, and the secondary sedimentation tank 4. A vertical seat 1102 is installed on the top of the mounting base 1101. A lifting beam 1103 is slidably arranged on the front side of the vertical seat 1102 in the vertical direction. Three L-shaped connecting seats 1104 are fixedly connected to the back side of the lifting beam 1103 at equal intervals. The three L-shaped connecting seats 1104 are respectively inserted into the three rectangular openings on the vertical seat 1102 and then connected to the three flocculation receiving nets 10 Two internal threaded sleeves 1106 are symmetrically installed on the lifting beam 1103, and studs 1107 are respectively inserted and threadedly connected in the two internal threaded sleeves 1106. Two servo motors 1108 are fixed to the top of the vertical seat 1102 through two motor mounting brackets. The output ends of the two servo motors 1108 are respectively fixed to the upper ends of the two studs 1107 through couplings. When the two servo motors 1108 are started, the two studs 1107 are driven to rotate, so that the two internal threaded sleeves 1106 can be pulled. The lifting effect of the lifting beam 1103 is realized. The lifting of the lifting beam 1103 can drive the three L-shaped connecting seats 1104 to be lifted, thereby lifting the three flocculation receiving nets 10 in the primary sedimentation tank 2, the microbial flocculation reaction tank 3, and the secondary sedimentation tank 4, so as to facilitate the lifting of the flocculants received on the pool covers 12 of the three clarification tanks; at least two telescopic rods 1105 are installed at intervals on the front side of the installation base plate 1101, and the upper ends of the telescopic rods 1105 are connected to the bottom of the lifting beam 1103. The telescopic rod 1105 is fixedly connected to the wall, and the telescopic characteristics of the telescopic rod 1105 can be adjusted in length as the lifting beam 1103 is raised or lowered, thereby supporting and preventing the lifting beam 1103 from deflecting. Two bearing seats are symmetrically installed on the mounting base plate 1101, and ball bearings 1109 are arranged in the two bearing seats. The lower ends of the two studs 1107 and the inner rings of the two ball bearings 1109 are fixed by interference fit. The ball bearings 1109 support the radial load generated by the rotating studs 1107.

[0024] In this embodiment, flocculation receiving nets 10 are additionally provided at the bottom of the primary sedimentation tank 2, the microbial flocculation reaction tank 3, and the secondary sedimentation tank 4, which are the three tanks that will produce flocculation, to receive the produced flocculation. Then, with the help of the lifting mechanism 11, the three flocculation receiving nets 10 are steadily lifted. Specifically, the two servo motors 1108 are started to drive the two studs 1107 to rotate, so as to realize the lifting effect of the two internal threaded sleeves 1106, thereby realizing the lifting effect of the lifting beam 1103. The lifting of the lifting beam 1103 can drive the three L-shaped connecting seats 1104 to be lifted, thereby The three flocculation receiving nets 10 in the microbial flocculation reaction tank 3 and the secondary sedimentation tank 4 are lifted, which is convenient for lifting the flocculants collected on the three clarification tank covers 12, and is convenient for workers to clean up later. Conversely, the two servo motors 1108 drive the two studs 1107 to reverse, so that the lifting beam 1103 can be lowered, that is, the three flocculation receiving nets 10 are lowered and returned to their original positions; this is convenient for periodically picking up the flocculants produced in the primary sedimentation tank 2, the microbial flocculation reaction tank 3, and the secondary sedimentation tank 4, which is convenient for cleaning operations, and at the same time, the three flocculation receiving nets 10 can be lifted, which can improve the efficiency of the operation.

[0025] In a further embodiment, referring to Figures 2 - 5 The plug-in assembly 14 includes a supporting baffle 1401 fixedly mounted on the lifting beam 1103, and the supporting baffle 1401 is installed on one end of the lifting beam 1103 close to the clarification tank cover 12, and a horizontal plug-in pipe 1402 is embedded in the middle of the supporting baffle 1401; the link assembly 13 includes a transmission box 1302 fixedly mounted on the top of the clarification tank cover 12, and an L-shaped rod 1301 is movably inserted on the side of the transmission box 1302, and a rotating shaft 1306 is rotatably installed in the transmission box 1302, and the part of the rotating shaft 1306 in the transmission box 1302 is fixedly sleeved with a gear 1304, and the L-shaped One end of the rod 1301 extending into the transmission box 1302 is fixedly connected to a rack plate 1305, and the rack plate 1305 is meshed with the gear 1304. The clockwise rotation of the handwheel 1303 can drive the gear 1304 to rotate, and the rotation of the gear 1304 can mesh and drive the rack plate 1305 to translate, prompting the horizontal and vertical sections of the L-shaped rod 1301 to be inserted into the insertion tube 1402, and the lifting beam 1103 is connected to the clarification tank cover 12; the end of the rotating shaft 1306 extending out of the transmission box 1302 is equipped with a handwheel 1303, and the grip of the handwheel 1303 is provided with an anti-slip rubber sleeve to facilitate manual rotation of the handwheel 1303.

[0026] In this embodiment, ozone is introduced into the clarifier 5 for oxidation disinfection treatment. To ensure the disinfection effect, a clarifier cover 12 needs to be added to the clarifier 5. To clean the inside of the clarifier 5 regularly, the docking of the linkage component 13 and the insertion component 14 can be utilized. Specifically, when the handwheel 1303 rotates clockwise, it can drive the gear 1304 to rotate. The rotation of the gear 1304 can meshingly drive the rack plate 1305 to translate, prompting the horizontal and vertical segments of the L-shaped rod 1301 to insert into the insertion tube 1402, connecting the lifting cross beam 1103 with the clarifier cover 12. Conversely, when the handwheel 1303 rotates counterclockwise, the gear 1304 rotates in the opposite direction, and the rack plate 1305 can also translate in the opposite direction to the previous one, prompting the horizontal and vertical segments of the L-shaped rod 1301 to be withdrawn from the insertion tube 1402, so that the clarifier cover 12 can be separated from the lifting cross beam 1103, that is, the lifting of the lifting cross beam 1103 will not affect the clarifier cover 12. By connecting the clarifier cover 12 with the lifting mechanism 11, when the lifting mechanism 11 lifts the three flocculation receiving nets 10, the clarifier cover 12 can be lifted synchronously, saving the inconvenience of opening the clarifier cover 12 additionally.

[0027] Furthermore, referring to Figure 1 As shown, a wastewater input pipe 7 is installed on the side of the regulating tank 1 facing away from the primary sedimentation tank 2, and a wastewater output pipe 8 is installed on the side of the clarifier 5 facing away from the secondary sedimentation tank 4. Wastewater is introduced into the regulating tank 1 through the wastewater input pipe 7 and undergoes primary filtration in a physical manner through the coarse grid filter 9. The reclaimed water after ozone disinfection treatment in the clarifier 5 is discharged through the wastewater output pipe 8.

[0028] The working principle of the present invention is as follows: Wastewater is introduced into the regulating tank 1 through the wastewater input pipe 7 and first undergoes physical coarse filtration through the coarse grid filter 9. Then, an acidic solution is added into the regulating tank 1 through the acidic solution input pipe 101 to adjust the wastewater to an appropriate pH. After that, the wastewater enters the primary sedimentation tank 2 to react with the coagulant for primary chemical flocculation. Then, the water body enters the microbial flocculation reaction tank 3 to react with the microbial liquid medicine, and the water body is purified through biological treatment. Then, the wastewater enters the secondary sedimentation tank 4 to react with the flocculation decolorant for secondary chemical flocculation; by adding a microbial flocculation reaction tank 3 between the primary sedimentation tank 2 and the secondary sedimentation tank 4 and introducing biological treatment, combined with traditional physical and chemical methods, the advantages of various treatment methods can be fully utilized, so that pollutants can be removed to the greatest extent, and finally ozone can be introduced into the clarifier 5 for oxidation disinfection treatment.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyester fabric dyeing and finishing wastewater treatment and recycling device, comprising a regulating tank (1), a primary sedimentation tank (2), a microbial flocculation reaction tank (3), a secondary sedimentation tank (4), and a clarification tank (5) arranged in sequence, characterized in that, A coarse grid filter (9) is installed in the regulating tank (1), and flocculation receiving nets (10) are movably installed in the primary sedimentation tank (2), the microbial flocculation reaction tank (3) and the secondary sedimentation tank (4). A lifting mechanism (11) matching the three flocculation receiving nets (10) is installed on the front side of the primary sedimentation tank (2), the microbial flocculation reaction tank (3) and the secondary sedimentation tank (4), so as to facilitate the periodic lifting and removal of flocculants in the primary sedimentation tank (2), the microbial flocculation reaction tank (3) and the secondary sedimentation tank (4); a plug-in component (14) is arranged on the lifting mechanism (11), and a clarification tank cover (12) is movably installed on the top of the clarification tank (5). A linking component (13) matching the plug-in component (14) is installed on the clarification tank cover (12), so as to determine whether to lift up the clarification tank cover (12) synchronously when lifting the three flocculation receiving nets (10).

2. The polyester fabric dyeing and finishing wastewater treatment and recycling device according to claim 1, wherein: The regulating tank (1), the primary sedimentation tank (2), the microbial flocculation reaction tank (3), the secondary sedimentation tank (4), and the clarification tank (5) are connected to each other via a conveying assembly (6), and the conveying assembly (6) is composed of a transverse connecting pipeline (601) and an electric pump (602) on the connecting pipeline (601).

3. A polyester fabric dyeing and finishing wastewater treatment and recycling device according to claim 2, characterized in that: An acid solution inlet pipe (101) is installed on the back side of the regulating tank (1) for adjusting the pH of the wastewater in the regulating tank (1); a coagulant inlet pipe (201) is installed on the back side of the primary sedimentation tank (2); a microbial liquid inlet pipe (301) is installed on the back side of the microbial flocculation reaction tank (3); and a flocculation decolorant inlet pipe (401) is installed on the back side of the secondary sedimentation tank (4). The coagulant inlet pipe (201), the microbial liquid inlet pipe (301), and the flocculation decolorant inlet pipe (401) facilitate the generation of flocculation products by the wastewater in the primary sedimentation tank (2), the microbial flocculation reaction tank (3), and the secondary sedimentation tank (4), thereby achieving the purpose of gradually purifying the wastewater body. An ozone pump inlet pipe (501) is installed on the back side of the clarification tank (5).

4. A polyester fabric dyeing and finishing wastewater treatment and recycling device according to claim 3, characterized in that: The lifting mechanism (11) comprises a mounting base (1101) located at the front side of the primary sedimentation tank (2), the microbial flocculation reaction tank (3), and the secondary sedimentation tank (4); a vertical seat (1102) is mounted on the top of the mounting base (1101); a lifting beam (1103) is slidably arranged in the vertical direction on the front side of the vertical seat (1102); three L-shaped connecting seats (1104) are fixedly connected to the back side of the lifting beam (1103) at equal intervals; the three L-shaped connecting seats (1104) are respectively inserted into the vertical seat (1102). 2) and then fixed to three flocculation receiving nets (10); two internal threaded sleeves (1106) are symmetrically installed on the lifting beam (1103), and studs (1107) are respectively inserted and threadedly connected in the two internal threaded sleeves (1106); two servo motors (1108) are fixed to the top of the vertical seat (1102) through two motor mounting brackets, and the output ends of the two servo motors (1108) are respectively fixed to the upper ends of the two studs (1107) through couplings.

5. A polyester fabric dyeing and finishing wastewater treatment and recycling device according to claim 4, characterized in that: At least two telescopic rods (1105) are installed at intervals on the front side of the installation base plate (1101), and the upper ends of the telescopic rods (1105) are fixedly connected to the bottom wall of the lifting beam (1103).

6. A polyester fabric dyeing and finishing wastewater treatment and recycling device according to claim 4, characterized in that: Two bearing seats are symmetrically mounted on the mounting base plate (1101), and ball bearings (1109) are disposed in the two bearing seats. The lower ends of the two studs (1107) and the inner rings of the two ball bearings (1109) are fixed by interference fit.

7. A polyester fabric dyeing and finishing wastewater treatment and recycling device according to claim 4, characterized in that: The plug-in assembly (14) includes a supporting baffle (1401) fixedly mounted on a lifting beam (1103), and the supporting baffle (1401) is mounted on one end of the lifting beam (1103) close to the clarification tank cover (12), and a horizontal plug-in pipe (1402) is embedded in the middle of the supporting baffle (1401).

8. A polyester fabric dyeing and finishing wastewater treatment and recycling device according to claim 7, characterized in that: The linking belt assembly (13) comprises a transmission box (1302) fixedly mounted on the top of the clarification tank cover (12); an L-shaped rod (1301) is movably inserted into the side of the transmission box (1302); a rotating shaft (1306) is rotatably mounted in the transmission box (1302); a portion of the rotating shaft (1306) in the transmission box (1302) is fixedly sleeved with a gear (1304); one end of the L-shaped rod (1301) extending into the transmission box (1302) is fixedly connected to a rack plate (1305); and the rack plate (1305) is meshingly connected to the gear (1304).

9. A polyester fabric dyeing and finishing wastewater treatment and recycling device according to claim 9, characterized in that: A hand wheel (1303) is mounted on one end of the rotating shaft (1306) extending out of the transmission box (1302), and a grip portion of the hand wheel (1303) is provided with an anti-slip rubber sleeve to facilitate manual rotation of the hand wheel (1303).

10. A polyester fabric dyeing and finishing wastewater treatment and recycling device according to any one of claims 1-9, characterized in that: A wastewater inlet pipe (7) is installed on the side of the regulating tank (1) facing away from the primary sedimentation tank (2), and a wastewater outlet pipe (8) is installed on the side of the clarification tank (5) facing away from the secondary sedimentation tank (4).

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