Oxygen bleaching machine wastewater reuse device

Abstract

This invention discloses a wastewater reuse device for an oxygen bleaching machine, comprising: a pre-recovery tank, wherein a stirring shaft is rotatably connected to the bottom of the inner wall of the pre-recovery tank via a bearing, and multiple stirring paddles for stirring are fixedly connected to the surface of the stirring shaft; and a self-cleaning filter assembly disposed on the surface of the stirring shaft, which is used to pre-treat the wastewater to remove lint. This invention uses a guide hood to collect lint carried by the wastewater and cleaned by a brush from the surface of the filter screen, concentrating the lint on the inner wall of the filter frame. Simultaneously, a drive shaft rotates a spiral blade, transporting the lint accumulated inside the filter frame to the bottom of the frame. This accumulation continues until the lint is squeezed and the blocking disc opens, causing the bottom ring to be blocked. At this point, the squeezed lint enters the rotating base for collection, thus preventing the lint from affecting the wastewater filtration efficiency.

Description

Technical Field

[0001] This invention relates to the field of dyeing and bleaching wastewater treatment technology, specifically to a wastewater reuse device for oxygen bleaching machines. Background Technology

[0002] With social development, the garment industry has grown rapidly, and people have increasingly higher requirements for the quality of garment fabrics. One crucial step in garment fabric production is dyeing. This involves using specialized dyeing equipment to process the raw fabric through processes such as packing, sewing, singeing, desizing, oxygen bleaching, mercerizing, setting, dyeing, finishing, and pre-shrinking. Bleaching and dyeing is a step in textile production, where textiles are bleached and then dyed. This process generates a large amount of bleaching and dyeing wastewater, which mainly contains dyes, sizing agents, auxiliaries, oils, acids, alkalis, fiber impurities, and heavy metal salts. It is characterized by complex and variable composition, high concentration, strong toxicity, difficulty in degradation, and a wide range of water quality variations, requiring specialized wastewater treatment processes and equipment.

[0003] For example, the fabric dyeing wastewater treatment process disclosed in CN117326749A uses CO2 gas for acid-base balance adjustment to regulate the pH value of the wastewater, replacing the traditional pH adjustment method that uses chemicals such as NaOH or H2SO4, thus avoiding long-term pollution or harm to the environment. Furthermore, an auxiliary pretreatment device is added to the pretreatment process. This device incorporates a stirring mechanism and a scraping mechanism. The stirring mechanism has a stirring disc inside, which, under the action of its internal transmission components, intermittently stirs the wastewater while simultaneously adsorbing particles and impurities, resulting in stable adsorption efficiency and avoiding increased power consumption in subsequent separation processes. The scraping mechanism is driven by the stirring mechanism at one end and by an independent motor at the other, enabling high-frequency or large-area rapid sweeping by the internal sweeping discs. This is suitable for handling lint in wastewater from different fabrics, resulting in high efficiency and strong applicability.

[0004] However, in actual use, although the above technology hangs the lint and the actuating plate C7 can clean the lint, the treated lint is still inside the recycling equipment, causing the lint to pile up and affecting the efficiency of wastewater recycling. Summary of the Invention

[0005] The purpose of this invention is to provide a wastewater reuse device for oxygen bleaching machines to solve the problem that lint remains inside the recycling equipment, causing lint to accumulate and affecting the wastewater recycling efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an oxygen bleaching machine wastewater reuse device, comprising:

[0007] A pre-recycling tank, wherein a stirring shaft is rotatably connected to the bottom of the inner wall of the pre-recycling tank via a bearing, and a plurality of stirring paddles for stirring are fixedly connected to the surface of the stirring shaft;

[0008] A self-cleaning filter assembly is installed on the surface of the stirring shaft. This self-cleaning filter assembly is used to pre-treat wastewater to remove lint. The self-cleaning filter assembly includes multiple first support frames rotatably connected to the surface of the stirring shaft via bearings. A recovery pipe is fixedly connected to one end of the first support frame away from the stirring shaft. Multiple rotating frames are rotatably connected to the surface of the recovery pipe via sealed bearings. Each rotating frame has a hollow structure in the middle, and the interior of the rotating frame is connected to the interior of the recovery pipe. Every two rotating frames form a group, and one end of the opposite face of each group of two rotating frames is rotatably connected to a suction pipe via a sealed bearing. A filter screen is fixedly connected to the surface of the suction pipe. Multiple holes are opened on the surface of the suction pipe corresponding to the position of the filter screen, so that the wastewater inside the pre-recovery tank passes through the filter screen, the suction pipe, and the rotating frame into the interior of the recovery pipe.

[0009] A lint collection assembly is installed on the surface of the stirring shaft to collect lint for separate cleaning. The lint collection assembly includes a top plate that rotates with the stirring shaft, a drive shaft, a filter frame, a spiral blade guide cover, a bottom ring, and a rotating base. The filter frame is fixedly connected to one end of the top plate and the bottom ring, and the drive shaft is rotatably connected to the middle of the top plate via a bearing. The spiral blade is fixedly connected to the surface of the drive shaft corresponding to the filter frame position. The guide cover is fixedly embedded in the side wall of the filter frame. The bottom ring is fixedly embedded in the top of the rotating base. The rotating base is rotatably connected to the bottom of the inner wall of the pre-recovery tank, and the bottom of the rotating base and the bottom of the inner wall of the pre-recovery tank form a rotational seal. A blocking disc is movably sleeved on the surface of the drive shaft and is tightly fitted to the bottom of the bottom ring. A damping spring is fixedly connected to the bottom of the blocking disc and is fixedly installed on the inner wall of the bottom ring so that when the spiral blade rotates, it will drive the lint downward until it pushes open the blocking disc and enters the interior of the rotating base for collection.

[0010] Preferably, a cleaning brush is fixedly connected to the surface of the recovery tube corresponding to the position of the filter screen, and the surface of the cleaning brush is in close contact with the surface of the filter screen. A first gear is fixedly connected to the surface of the suction tube corresponding to the position between the rotating frame and the filter screen. A fixed gear meshes with the surface of the first gear, and the fixed gear is fixedly connected to the surface of the recovery tube. A toothed ring is fixedly connected to the surface of any one of the rotating frames in each group through a bracket, and a first toothed ring meshes with the surface of the toothed ring.

[0011] Preferably, the side wall of the recycling tube corresponding to the position of the rotating frame has a first through hole, and the interior of the first through hole is connected to the interior of the recycling tube and the interior of the rotating frame respectively. One end of the top of the recycling tube is fixedly connected to a connecting tube, and the connecting tube is fixedly connected to the top of the first support frame. The connecting tube is a hollow tubular structure in the middle, and the interior of the connecting tube is connected to the interior of the recycling tube.

[0012] Preferably, the surface of the connecting pipe is rotatably connected to a fixed frame via a sealed bearing. A pump suction pipe communicating with the interior of the fixed frame is fixedly embedded in the side wall of the fixed frame. A second through hole communicating with the interior of the fixed frame is opened on the side wall of the connecting pipe corresponding to the position of the fixed frame. The end of the pump suction pipe away from the fixed frame is connected to the drive pump, so that the drive pump filters and pumps the wastewater inside the pre-recovery tank out of the pre-recovery tank through the pump suction pipe, the second through hole, the connecting pipe, the recovery pipe, the rotating frame, the suction pipe, and the filter screen.

[0013] Preferably, a second support frame is fixedly connected to one end of the first support frame at the top, and the second support frame is rotatably connected to the top of the drive shaft surface via a bearing. The second support frame is fixedly connected to the top of the top plate. A third support frame is fixedly connected to the surface of the first support frame at the bottom corresponding to the position of the rotating base, and the third support frame is fixedly connected to the inner wall of the rotating base.

[0014] Preferably, the inner wall of the bottom ring corresponding to the bottom position of the drive shaft is fixedly connected to a mounting base via a bracket. The mounting base is rotatably connected to the surface of the drive shaft via a bearing, and a damping spring is fixedly connected to the top of the mounting base. A second gear is fixedly connected to the bottom of the surface of the drive shaft, and a second toothed ring meshes with the surface of the second gear. Sealing rings are fixedly connected to the bottom of the inner walls of the pre-recycling bucket corresponding to the inner and outer rings of the rotating base, respectively. The inner walls of the sealing rings are tightly fitted with the inner walls of the rotating base to form a rotational seal between the rotating base and the pre-recycling bucket. The second toothed ring is fixedly connected to the inner wall of the sealing ring located on the inner wall of the outer ring of the rotating base. A cleaning bottom cover for unloading is threadedly connected to the bottom of the pre-recycling bucket corresponding to the position of the rotating base. The diameter of the blocking disc is larger than the inner diameter of the bottom ring so that the blocking disc seals the bottom of the bottom ring.

[0015] Preferably, a mounting bracket is fixedly connected to the top of the inner wall of the pre-recycling tank, the mounting bracket is fixedly connected to the middle of the mounting bracket, a top cover is detachably installed on the top of the pre-recycling tank, and a drive assembly for simultaneously driving the stirring shaft and the connecting pipe to rotate in opposite directions is provided on the top of the surface of the stirring shaft.

[0016] Preferably, the drive assembly includes a first fixed seat and a second fixed seat fixedly connected to the top of the mounting bracket. The first fixed seat is rotatably connected to the top of the surface of the stirring shaft via a bearing. A first bevel gear is fixedly connected to the top of the surface of the stirring shaft, and a second bevel gear is fixedly connected to the top of the surface of the mounting bracket. A third bevel gear meshes with the surfaces of both the first and second bevel gears, and the third bevel gear is rotatably connected to the middle of the second fixed seat via a bearing. The stirring shaft is driven by a drive motor.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This invention uses a guide cover to collect the lint carried by the wastewater and cleaned off the surface of the filter screen by a cleaning brush. The lint is concentrated on the inner wall of the filter frame. At the same time, the drive shaft drives the spiral blades to rotate, and transports the lint accumulated inside the filter frame to the bottom of the filter frame. The lint accumulates and squeezes the blocking disc, opening the blocking disc from blocking the bottom ring. At this time, the squeezed lint will enter the interior of the rotating base for collection, thereby preventing the lint from affecting the efficiency of wastewater filtration.

[0019] This invention also allows the recovery tube to rotate around the stirring shaft, causing the recovery tube to drive the gear ring to rotate around the stirring shaft via the rotating frame. This causes the gear ring to mesh with the first gear ring, which in turn causes the gear ring to rotate around the recovery tube. The gear ring then drives the rotating frame to rotate around the recovery tube. Because the recovery tube and the fixed gear rotate relative to the gear ring, the first gear meshes with the fixed gear. The first gear then drives the filter screen to rotate via the suction tube. This causes the filter screen to rotate and rub against the cleaning brush on the surface of the recovery tube, and the cleaning brush removes the lint accumulated on the surface of the filter screen, thus achieving the purpose of self-cleaning the filter screen. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the oxygen bleaching machine wastewater reuse device of the present invention;

[0021] Figure 2 This is a partial sectional view of the overall structure of the oxygen bleaching machine wastewater reuse device of the present invention;

[0022] Figure 3 This is a schematic diagram of the self-cleaning filter assembly structure of the oxygen bleaching machine wastewater reuse device of the present invention;

[0023] Figure 4 This is a cross-sectional view of the self-cleaning filter assembly of the oxygen bleaching machine wastewater reuse device of the present invention.

[0024] Figure 5 This is a schematic diagram of the lint collection component of the oxygen bleaching machine wastewater reuse device of the present invention;

[0025] Figure 6This is a cross-sectional view of the lint collection component of the oxygen bleaching machine wastewater reuse device of the present invention.

[0026] In the diagram: 1. Pre-recovery tank; 2. Stirring shaft; 3. Stirring paddle;

[0027] 401. First support frame; 402. Recovery pipe; 403. Rotating frame; 404. Suction pipe; 405. Filter screen; 406. Cleaning brush; 407. First gear; 408. Fixed gear; 409. Gear ring; 410. First gear ring; 411. First through hole; 412. Connecting pipe; 413. Fixed frame; 414. Pump suction pipe; 415. Second through hole;

[0028] 501. Second support frame; 502. Top plate; 503. Drive shaft; 504. Filter frame; 505. Spiral blades; 506. Guide cover; 507. Bottom ring; 508. Rotating base; 509. Blocking plate; 510. Damping spring; 511. Mounting base; 512. Second gear; 513. Sealing ring; 514. Second gear ring; 515. Third support frame; 516. Cleaning bottom cover;

[0029] 6. Mounting bracket; 7. Top cover;

[0030] 801, First fixed seat; 802, First bevel gear; 803, Second bevel gear; 804, Third bevel gear; 805, Second fixed seat. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figure 1-6 This invention provides a technical solution: an oxygen bleaching machine wastewater reuse device, comprising:

[0033] The pre-recovery tank 1 has a stirring shaft 2 rotatably connected to the bottom of its inner wall via a bearing. Multiple stirring paddles 3 for stirring are fixedly installed on the surface of the stirring shaft 2.

[0034] A self-cleaning filter assembly is installed on the surface of the stirring shaft 2. This self-cleaning filter assembly is used to pre-treat wastewater to remove lint. The self-cleaning filter assembly includes multiple first support frames 401 rotatably connected to the surface of the stirring shaft 2 via bearings. A recovery pipe 402 is fixedly installed at one end of the first support frame 401 away from the stirring shaft 2. Multiple rotating frames 403 are rotatably connected to the surface of the recovery pipe 402 via sealed bearings. The rotating frames 403 have a hollow structure in the middle, and the interior of the rotating frames 403 is connected to the interior of the recovery pipe 402. The components are interconnected, with two rotating frames 403 forming a group. Each pair of rotating frames 403 in a group has a suction pipe 404 rotatably connected to one end of their opposite sides via a sealed bearing. A filter screen 405 is fixedly mounted on the surface of the suction pipe 404. Multiple holes are formed on the surface of the suction pipe 404 corresponding to the position of the filter screen 405, allowing wastewater from the pre-recovery tank 1 to pass through the filter screen 405, the suction pipe 404, and the rotating frame 403 into the recovery pipe 402. The recovery pipe 402 has holes on the side corresponding to the position of the rotating frame 403. A first through hole 411 is provided in the wall, and the interior of the first through hole 411 is connected to the interior of the recovery pipe 402 and the rotating frame 403 respectively. A connecting pipe 412 is fixedly installed at one end of the top of the recovery pipe 402, and the connecting pipe 412 is fixedly installed on the top of the first support frame 401. The connecting pipe 412 is a hollow tubular structure, and the interior of the connecting pipe 412 is connected to the interior of the recovery pipe 402. A fixing frame 413 is rotatably connected to the surface of the connecting pipe 412 through a sealed bearing. The side wall of the fixing frame 413 is fixed. A pump suction pipe 414 is embedded and communicates with the interior of the fixed frame 413. A second through hole 415 communicating with the interior of the fixed frame 413 is opened on the side wall of the connecting pipe 412 corresponding to the position of the fixed frame 413. The end of the pump suction pipe 414 away from the position of the fixed frame 413 is connected to the drive pump, so that the drive pump filters and pumps the wastewater inside the pre-recovery tank 1 out of the pre-recovery tank 1 through the pump suction pipe 414, the second through hole 415, the connecting pipe 412, the recovery pipe 402, the rotating frame 403, the suction pipe 404 and the filter screen 405.

[0035] When the above structure is in use, when the connecting pipe 412 drives the first support frame 401 to rotate in the opposite direction to the stirring shaft 2, the first support frame 401 will drive the recovery pipe 402 to rotate around the stirring shaft 2. At this time, the drive pump will draw out the wastewater inside the pre-recovery tank 1 through the pump suction pipe 414, the second through hole 415, the connecting pipe 412, the recovery pipe 402, the rotating frame 403, the liquid suction pipe 404 and the filter screen 405, so that the lint in the wastewater is blocked on the surface of the filter screen 405. The pre-treated wastewater is injected into the filter tank through the drive pump, so that the wastewater can be pre-treated, that is, the lint impurities in the wastewater can be filtered out.

[0036] A cleaning brush 406 is fixedly installed on the surface of the recovery tube 402 corresponding to the position of the filter screen 405, and the surface of the cleaning brush 406 is in close contact with the surface of the filter screen 405. A first gear 407 is fixedly installed on the surface of the suction tube 404 corresponding to the position between the rotating frame 403 and the filter screen 405. A fixed gear 408 meshes with the surface of the first gear 407, and the fixed gear 408 is fixedly installed on the surface of the recovery tube 402. A toothed ring 409 is fixedly installed on the surface of any rotating frame 403 in each group through a bracket, and a first toothed ring 410 meshes with the surface of the toothed ring 409.

[0037] When the above structure is in use, when the recovery pipe 402 drives the gear ring 409 to rotate around the stirring shaft 2 via the rotating frame 403, the gear ring 409 will mesh with the first gear ring 410, thereby causing the gear ring 409 to rotate around the recovery pipe 402, and causing the gear ring 409 to drive the rotating frame 403 to rotate around the recovery pipe 402. At this time, the first gear 407 and the fixed gear 408 mesh with each other, and the first gear 407 drives the filter screen 405 to rotate via the suction pipe 404, thereby causing the filter screen 405 to rotate and rub against the cleaning brush 406 on the surface of the recovery pipe 402, and the cleaning brush 406 removes the lint accumulated on the surface of the filter screen 405, thus achieving the purpose of self-cleaning of the filter screen 405.

[0038] A lint collection assembly is installed on the surface of the stirring shaft 2 to collect lint for separate cleaning. The lint collection assembly includes a top plate 502 that rotates with the stirring shaft 2, a drive shaft 503, a filter frame 504, spiral blades 505, a guide cover 506, a bottom ring 507, and a rotating base 508. The filter frame 504 is fixedly installed at one end of the top plate 502 and the bottom ring 507 facing each other. The drive shaft 503 is rotatably connected to the middle of the top plate 502 via bearings. The spiral blades 505 are fixedly installed on the surface of the drive shaft 503 corresponding to the position of the filter frame 504. The guide cover 506 is fixedly embedded in the side wall of the filter frame 504, and the bottom ring 507 is fixedly embedded in the rotating base 508. At the top of 08, a rotating base 508 is rotatably connected to the bottom of the inner wall of the pre-recycling bin 1, and the bottom of the rotating base 508 and the bottom of the inner wall of the pre-recycling bin 1 form a rotational seal relationship. A blocking disc 509 is movably sleeved on the surface of the drive shaft 503, and the blocking disc 509 is tightly fitted to the bottom of the bottom ring 507. A damping spring 510 is fixedly installed at the bottom of the blocking disc 509, and the damping spring 510 is fixedly set on the inner wall of the bottom ring 507 so that when the spiral blade 505 rotates, it will drive the lint downward until it pushes open the blocking disc 509 and enters the interior of the rotating base 508 for collection. A second support frame 501 is fixedly installed at one end of the first support frame 401 at the top, and the second support frame 501... 01 is rotatably connected to the top of the drive shaft 503 via a bearing. A second support frame 501 is fixedly installed on the top of the top plate 502. A third support frame 515 is fixedly installed on the surface of the bottom first support frame 401 corresponding to the rotating base 508, and the third support frame 515 is fixedly installed on the inner wall of the rotating base 508. A mounting base 511 is fixedly installed on the inner wall of the bottom ring 507 corresponding to the bottom of the drive shaft 503 via a bracket. The mounting base 511 is rotatably connected to the surface of the drive shaft 503 via a bearing, and a damping spring 510 is fixedly installed on the top of the mounting base 511. A second gear 512 is fixedly installed on the bottom of the surface of the drive shaft 503. The surface is engaged with a second toothed ring 514. The bottom of the inner wall of the pre-recovery tank 1 corresponding to the inner wall of the inner ring and the inner wall of the outer ring of the rotating base 508 is fixedly installed with a sealing ring 513. The inner wall of the sealing ring 513 is tightly fitted with the inner wall of the rotating base 508 so that a rotational seal is formed between the rotating base 508 and the pre-recovery tank 1. The second toothed ring 514 is fixedly installed on the inner wall of the sealing ring 513 located on the inner wall of the outer ring of the rotating base 508. The bottom of the pre-recovery tank 1 corresponding to the position of the rotating base 508 is threadedly connected with a cleaning bottom cover 516 for material discharge. The diameter of the blocking disc 509 is larger than the inner diameter of the bottom ring 507 so that the blocking disc 509 can block the bottom of the bottom ring 507.

[0039] In use, the above structure collects the lint carried by the wastewater and cleaned by the brush 406 from the surface of the filter screen 405 via the guide cover 506, causing the lint to be concentrated on the inner wall of the filter frame 504. At the same time, the drive shaft 503 drives the spiral blades 505 to rotate, transporting the lint accumulated inside the filter frame 504 to the bottom of the filter frame 504 until it continuously accumulates and squeezes the blocking disc 509 downwards, so that the blocking disc 509 no longer blocks the bottom of the bottom ring 507. At this time, the squeezed lint will enter the interior of the rotating base 508 for collection, thereby achieving the purpose of lint collection.

[0040] A mounting bracket 6 is fixedly installed on the top of the inner wall of the pre-recycling tank 1. A mounting bracket 413 is fixedly installed in the middle of the mounting bracket 6. A top cover 7 is detachably installed on the top of the pre-recycling tank 1. A drive assembly for simultaneously driving the stirring shaft 2 and the connecting pipe 412 to rotate in opposite directions is provided on the top of the surface of the stirring shaft 2. The drive assembly includes a first fixed seat 801 and a second fixed seat 805 fixedly installed on the top of the mounting bracket 6. The first fixed seat 801 is rotatably connected to the top of the surface of the stirring shaft 2 through a bearing. A first bevel gear 802 is fixedly installed on the top of the surface of the stirring shaft 2, and a second bevel gear 803 is fixedly installed on the top of the surface of the mounting bracket 413. A third bevel gear 804 meshes with the surfaces of the first bevel gear 802 and the second bevel gear 803. The third bevel gear 804 is rotatably connected to the middle of the second fixed seat 805 through a bearing. The stirring shaft 2 is driven by a drive motor.

[0041] When the above structure is in use, the rotation of the stirring shaft 2 causes the stirring shaft 2 to drive the first bevel gear 802 to rotate, and the first bevel gear 802 drives the second bevel gear 803 to rotate in the opposite direction to the first bevel gear 802 through the third bevel gear 804. Thus, when the stirring shaft 2 rotates, it will drive the connecting pipe 412 to rotate in the opposite direction through the drive assembly, and the connecting pipe 412 will drive the first support frame 401 to rotate in the opposite direction to the stirring shaft 2.

[0042] Working principle: In use, the invention drives the stirring shaft 2 to rotate via a drive motor, which in turn drives the first bevel gear 802 to rotate. When the first bevel gear 802 rotates, it drives the third bevel gear 804 to rotate, which in turn drives the second bevel gear 803 to rotate in the opposite direction to the first bevel gear 802. As a result, when the stirring shaft 2 rotates, it drives the connecting pipe 412 to rotate in the opposite direction via the drive assembly, which in turn drives the first support frame 401 to rotate in the opposite direction to the stirring shaft 2.

[0043] When the stirring shaft 2 rotates, it will cause the stirring paddle 3 to stir the wastewater inside the pre-recovery tank 1. When the connecting pipe 412 causes the first support frame 401 to rotate in the opposite direction to the stirring shaft 2, it will cause the first support frame 401 to drive the recovery pipe 402 to rotate around the stirring shaft 2. At this time, the drive pump will draw out the wastewater inside the pre-recovery tank 1 through the pump suction pipe 414, the second through hole 415, the connecting pipe 412, the recovery pipe 402, the rotating frame 403, the suction pipe 404 and the filter screen 405. The wastewater will be filtered when it passes through the filter screen 405, and the lint in the wastewater will be blocked on the surface of the filter screen 405. The pre-treated wastewater will be injected into the filter tank by the drive pump, so that the wastewater can be pre-treated, that is, the lint impurities in the wastewater can be filtered out.

[0044] When the recovery pipe 402 rotates around the stirring shaft 2, it causes the toothed ring 409 to rotate around the stirring shaft 2 via the rotating frame 403, and the toothed ring 409 meshes with the first toothed ring 410, thereby causing the toothed ring 409 to rotate around the recovery pipe 402, and causing the toothed ring 409 to drive the rotating frame 403 to rotate around the recovery pipe 402. Since the recovery pipe 402 and the fixed gear 408 rotate relative to the toothed ring 409, the first gear 407 meshes with the fixed gear 408, and the first gear 407 drives the filter screen 405 to rotate via the suction pipe 404, thereby causing the filter screen 405 to rotate and rub against the cleaning brush 406 on the surface of the recovery pipe 402, and the cleaning brush 406 removes the lint accumulated on the surface of the filter screen 405, thus achieving the purpose of self-cleaning the filter screen 405.

[0045] Furthermore, when the cleaning brush 406 sweeps away the lint and impurities on the surface of the filter screen 405, the lint still remains inside the pre-recovery tank 1 and floats along with the liquid stirred by the agitator 3 inside the pre-recovery tank 1. Since the rotation direction of the first support frame 401 is opposite to the rotation direction of the agitator shaft 2, the first support frame 401 will drive the top plate 502, drive shaft 503, filter frame 504, spiral blade 505, guide cover 506, bottom ring 507, and rotating base 508 to rotate in the opposite direction to the rotation direction of the agitator shaft 2 via the second support frame 501 and the third support frame 515. That is, the guide cover 506 will collect the lint carried by the wastewater and swept away from the surface of the filter screen 405 by the cleaning brush 406, and concentrate the lint in the filter frame 504. The inner wall of the filter frame 504 is filled with lint. When the top plate 502, drive shaft 503 and bottom ring 507 rotate around the stirring shaft 2, the drive shaft 503 will drive the second gear 512 to rotate around the stirring shaft 2, and the second gear 512 will mesh with the second gear ring 514. This will cause the second gear 512 to drive the spiral blades 505 to rotate through the drive shaft 503, and transport the lint accumulated inside the filter frame 504 to the bottom of the filter frame 504. The lint will continue to accumulate and squeeze the blocking disc 509 to move downward, so that the blocking disc 509 no longer blocks the bottom of the bottom ring 507. At this time, the squeezed lint will enter the interior of the rotating base 508 for collection, thereby separating the lint from the waste liquid. The cleaning bottom cover 516 can be set to facilitate the cleaning of the lint inside the rotating base 508.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for recycling of effluent from an oxygen bleaching machine, characterized in that The utility model relates to a pre -recovery bucket (1) bottom of inner wall is rotatably connected with the stirring shaft (2) through the bearing, the surface fixed connection of stirring shaft (2) has a plurality of stirring paddle (3) for stirring; The self-cleaning filter assembly is arranged on the surface of the stirring shaft (2), and is used for pretreating the wastewater to filter out the lint in the wastewater. The self-cleaning filter assembly comprises a plurality of first support frames (401) rotatably connected to the surface of the stirring shaft (2) through bearings. One end of the first support frame (401) away from the stirring shaft (2) is fixedly connected with a recovery pipe (402). The surface of the recovery pipe (402) is rotatably connected with a plurality of rotating frames (403) through sealed bearings. The rotating frame (403) has a hollow structure in the middle, and the inside of the rotating frame (403) is in communication with the inside of the recovery pipe (402). Every two rotating frames (403) form a group, and one end of the opposite faces of each group of two rotating frames (403) is rotatably connected with a liquid suction pipe (404) through a sealed bearing respectively. The surface of the liquid suction pipe (404) is fixedly connected with a filter screen cover (405). A plurality of holes are formed in the surface of the liquid suction pipe (404) corresponding to the position of the filter screen cover (405), so that the wastewater in the inside of the pre-recovery bucket (1) passes through the filter screen cover (405) and enters the inside of the recovery pipe (402) through the liquid suction pipe (404) and the rotating frame (403). The lint collecting assembly is arranged on the surface of the stirring shaft (2), and is used for collecting the lint to facilitate separate cleaning of the lint. The lint collecting assembly comprises a top plate (502) rotating with the stirring shaft (2), a drive shaft (503), a filter frame (504), a spiral blade (505), a guide cover (506), a bottom ring (507), and a rotating base (508). The filter frame (504) is fixedly connected to one end of the opposite faces of the top plate (502) and the bottom ring (507), and the drive shaft (503) is rotatably connected to the middle of the top plate (502) through a bearing. The spiral blade (505) is fixedly connected to the surface of the drive shaft (503) corresponding to the position of the filter frame (504). The guide cover (506) is fixedly embedded in the side wall of the filter frame (504). The bottom ring (507) is fixedly embedded in the top of the rotating base (508). The rotating base (508) is rotatably connected to the bottom of the inner wall of the pre-recovery bucket (1), and the bottom of the rotating base (508) forms a rotating sealing relationship with the bottom of the inner wall of the pre-recovery bucket (1). The surface of the drive shaft (503) movably sleeves a blocking disc (509), and the blocking disc (509) is tightly attached to the bottom of the bottom ring (507). The bottom of the blocking disc (509) is fixedly connected with a damping spring (510), and the damping spring (510) is fixedly arranged on the inner wall of the bottom ring (507). When the spiral blade (505) rotates, the lint is moved downward until the blocking disc (509) is lifted and enters the inside of the rotating base (508) for collection. ​ 2. The apparatus for recycling wastewater from an oxygen bleaching machine according to claim 1, characterized in that: The surface of the recovery pipe (402) corresponding to the position of the filter cover (405) is fixedly connected with a cleaning brush (406), and the surface of the cleaning brush (406) is closely attached to the surface of the filter cover (405), the surface of the recovery pipe (402) corresponding to the position between the rotating frame (403) and the filter cover (405) is fixedly connected with a first gear (407), the surface of the first gear (407) is engaged with a fixed gear (408), and the fixed gear (408) is fixedly connected to the surface of the recovery pipe (402), the surface of each rotating frame (403) is fixedly connected with a gear ring (409) through a support, and the surface of the gear ring (409) is engaged with a first tooth ring (410).

3. The apparatus for recycling wastewater from an oxygen bleaching machine according to claim 2, characterized in that: The sidewall of the recovery pipe (402) corresponding to the position of the rotating frame (403) is provided with a first through hole (411), and the inside of the first through hole (411) is respectively communicated with the inside of the recovery pipe (402) and the rotating frame (403), one end of the top of the recovery pipe (402) is fixedly connected with a communication pipe (412), and the communication pipe (412) is fixedly connected to the top of the top first support frame (401), the communication pipe (412) is a hollow pipe-shaped structure in the middle, and the inside of the communication pipe (412) is communicated with the inside of the recovery pipe (402).

4. The apparatus for recycling wastewater from an oxygen bleaching machine according to claim 3, characterized in that: The surface of the communication pipe (412) is rotatably connected with a fixing frame (413) through a sealing bearing, the sidewall of the fixing frame (413) is fixedly embedded with a pump suction pipe (414) communicated with the inside of the fixing frame (413), the sidewall of the communication pipe (412) corresponding to the position of the fixing frame (413) is provided with a second through hole (415) communicated with the inside of the fixing frame (413), and one end of the pump suction pipe (414) away from the fixing frame (413) is connected with the drive pump, so that the drive pump filters and pumps out the waste water in the pre-recovery barrel (1) through the pump suction pipe (414), the second through hole (415), the communication pipe (412), the recovery pipe (402), the rotating frame (403), the liquid suction pipe (404) and the filter cover (405).

5. The apparatus for recycling wastewater from an oxygen bleaching machine according to claim 4, characterized in that: One end of the first support frame (401) located at the top is fixedly connected with a second support frame (501), and the second support frame (501) is rotatably connected to the top of the surface of the drive shaft (503) through a bearing, the second support frame (501) is fixedly connected to the top of the top plate (502), the surface of the first support frame (401) located at the bottom corresponding to the position of the rotating base (508) is fixedly connected with a third support frame (515), and the third support frame (515) is fixedly connected to the inner wall of the rotating base (508).

6. The apparatus for recycling wastewater from an oxygen bleaching machine according to claim 5, characterized in that: The inner wall of the bottom ring (507) corresponding to the bottom position of the driving shaft (503) is fixedly connected with a mounting seat (511) through a support, the mounting seat (511) is rotatably connected to the surface of the driving shaft (503) through a bearing, a damping spring (510) is fixedly connected to the top of the mounting seat (511), the bottom of the surface of the driving shaft (503) is fixedly connected with a second gear (512), the surface of the second gear (512) is engaged with a second gear ring (514), the inner wall of the bottom of the inner wall corresponding to the inner wall of the outer ring of the rotating base (508) is fixedly connected with a sealing ring (513), and the inner wall of the sealing ring (513) is tightly attached to the inner wall of the rotating base (508), so that the rotating base (508) and the pre-recovery barrel (1) form a rotating seal, the second gear ring (514) is fixedly connected to the inner wall of the sealing ring (513) attached to the inner wall of the outer ring of the rotating base (508), the bottom of the pre-recovery barrel (1) corresponding to the position of the rotating base (508) is threadedly connected with a cleaning bottom cover (516) which can be used for discharging, and the diameter of the blocking disc (509) is greater than the inner diameter of the bottom ring (507), so that the blocking disc (509) blocks the bottom of the bottom ring (507).

7. The apparatus for recycling wastewater from an oxygen bleaching machine according to claim 6, characterized in that: The top of the inner wall of the pre-recovery barrel (1) is fixedly connected with a mounting bracket (6), the fixing frame (413) is fixedly connected to the middle of the mounting bracket (6), the top of the pre-recovery barrel (1) is detachably installed with a top cover (7), and the top of the surface of the stirring shaft (2) is provided with a driving assembly for simultaneously driving the stirring shaft (2) and the communication pipe (412) to rotate in opposite directions.

8. The apparatus for recycling wastewater from an oxygen bleaching machine according to claim 7, characterized in that: The driving assembly comprises a first fixed seat (801) and a second fixed seat (805) fixedly connected to the top of the mounting bracket (6), the first fixed seat (801) is rotatably connected to the top of the surface of the stirring shaft (2) through a bearing, the top of the surface of the stirring shaft (2) is fixedly connected with a first bevel gear (802), and the top of the surface of the fixing frame (413) is fixedly connected with a second bevel gear (803), the surfaces of the first bevel gear (802) and the second bevel gear (803) are engaged with a third bevel gear (804), and the third bevel gear (804) is rotatably connected to the middle of the second fixed seat (805) through a bearing, and the stirring shaft (2) is driven by a driving motor.

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