Sewage multi-stage separation and purification treatment system based on temperature control and biological treatment

Abstract

The invention relates to the technical field of biological sewage treatment, in particular to a multistage sewage separation and purification treatment system based on temperature control and biological treatment.The multistage sewage separation and purification treatment system comprises a temperature control sewage pool, a fixing frame is fixedly connected to the temperature control sewage pool, and a biological flocculate fishing net is arranged in the temperature control sewage pool in a sliding fit mode; the dewatering seat is fixedly connected to one side of the temperature control sewage pool, the extrusion frame is rotatably connected to one side, close to the dewatering seat, of the temperature control sewage pool in a penetrating mode, the transmission mechanism is fixedly connected to the fixing frame, the transmission mechanism can drive the biological flocculate fishing net to move up and down, and biological flocculate formed in sewage can be fished. By fishing and separating the biological flocculates in advance, the accumulation of solid substances in the temperature control sewage tank can be reduced, the stability of microbial activity can be maintained, and the optimal effect of the microbial activity in the biological treatment process can be ensured, so that the treatment efficiency is improved, the sludge accumulation is reduced, the water quality control is optimized, the microbial management is promoted, the equipment burden is reduced and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage biological treatment, and in particular to a sewage multi-stage separation and purification treatment system based on temperature control and biological treatment. Background Art

[0002] The multi-stage sewage separation and purification treatment system based on temperature control and biological treatment combines physical, chemical and biological treatment technologies, which can effectively improve the sewage purification efficiency while reducing the negative impact on the environment. The temperature control and biological treatment methods can decompose harmful substances at different stages and remove pollutants such as suspended matter, dissolved matter, and nutrients in sewage by precisely adjusting the temperature and utilizing the metabolism of microorganisms.

[0003] The multi-stage separation and purification technology of sewage based on temperature control and biological treatment has broad application prospects in many fields, including:

[0004] Industrial wastewater treatment: such as high-concentration organic wastewater generated by industries such as papermaking, chemical industry, and textiles. Domestic wastewater treatment: daily treatment of urban domestic wastewater, especially wastewater with high organic concentration. Agricultural wastewater treatment: such as wastewater from aquaculture, farmland irrigation wastewater, etc.

[0005] The sewage multi-stage separation and purification treatment system based on temperature control and biological treatment can efficiently remove organic matter, nitrogen, phosphorus and other nutrients in sewage through temperature control and microbial metabolism, and further refine the treatment through physical filtration and other means. This technology can not only achieve efficient sewage purification, but also has the advantages of energy saving, environmental protection, and flexible operation. It has broad application prospects in the treatment of industrial and domestic sewage.

[0006] In the biological treatment process of existing sewage treatment equipment, microorganisms (such as bacteria, fungi, etc.) aggregate into biological flocs through interaction. These flocs are usually composed of cells, extracellular polymers, dead microorganisms, and other organic matter. Traditional sewage treatment equipment usually relies on sedimentation to naturally settle biological flocs to the bottom of the pool. During the sedimentation process, biological flocs may stay in the water for a long time, resulting in reduced treatment efficiency. If biological flocs stay in the treatment pool for too long, it may lead to a shortage of resources such as oxygen and nutrients, which in turn affects the activity of microorganisms and treatment efficiency.

[0007] In summary, the prior art lacks a technology for real-time salvaging of biological flocs during biological treatment in sewage treatment pools. Summary of the invention

[0008] The purpose of the present invention is to solve the shortcomings existing in the background technology and propose a sewage multi-stage separation and purification treatment system based on temperature control and biological treatment.

[0009] To achieve the above objectives, the technical solution adopted by the present invention is: a multi-stage sewage separation and purification treatment system based on temperature control and biological treatment, including a temperature-controlled sewage pool, a fixed frame is fixedly provided on the temperature-controlled sewage pool, a biological flocculant salvage net is slidably provided in the temperature-controlled sewage pool, a discharge trough is fixedly provided on one side of the biological flocculant salvage net, a centralizing mechanism is rotatably provided on the biological flocculant salvage net, a dehydration seat is fixedly provided on one side of the temperature-controlled sewage pool, an extrusion frame is rotatably provided on the side of the temperature-controlled sewage pool close to the dehydration seat, and a transmission mechanism is fixedly provided on the fixed frame.

[0010] Preferably, a drainage pipe is fixedly connected to and penetrates the bottom of the temperature-controlled sewage pool, and a water inlet pipe is fixedly connected to and disposed on an outer wall of one side of the temperature-controlled sewage pool.

[0011] Preferably, the transmission mechanism comprises a motor, the motor is fixedly connected to the fixing frame, a threaded rod is fixedly connected to the output end of the motor, a transmission groove is formed on the threaded rod, and the threaded rod is threadedly connected to the biofloc salvage net.

[0012] Preferably, a spiral pusher rack is rotatably connected in the discharge trough, one end of the spiral pusher rack extends through the inner wall of the discharge trough to the outside and is connected and fixedly provided with a universal joint, the other end of the universal joint is rotatably connected to the biological floc salvage net, and one end of the universal joint located at the biological floc salvage net is connected and fixedly provided with a transmission wheel.

[0013] Preferably, a guide tube is provided in a sliding cooperation with the inner wall of one end of the discharge trough close to the side wall of the temperature-controlled sewage pool, the outer wall of the outer end of the guide tube is provided with a conical structure, the inner end of the guide tube is provided with a plurality of springs connected and fixedly provided with an annular structure, the other end of the spring is connected and fixedly provided with the inner wall of the discharge trough, and a transmission rack is connected and fixedly provided with the bottom of one end of the discharge trough close to the side wall of the temperature-controlled sewage pool.

[0014] Preferably, the centralizing mechanism includes a rotating seat, which is rotatably connected to the biological floc salvage net, a sliding key is fixedly provided on the inner wall of the top end of the rotating seat, the outer wall of the sliding key is slidingly matched with the inner wall of the transmission groove, a dirt pushing net plate is fixedly provided on the rotating seat, and an annular rack is fixedly provided on the inner wall of the bottom end of the rotating seat, and the annular rack is meshed with the transmission wheel for transmission.

[0015] Preferably, a material receiving seat is fixedly provided on the top of the dehydration seat, a drainage groove is provided on the inner wall of the dehydration seat, a movable sleeve is slidably provided on the inner wall of the dehydration seat, a filter cloth sleeve is fixedly provided on the top of the movable sleeve, the top of the filter cloth sleeve is fixedly provided on the inner wall of the upper end of the dehydration seat, an extrusion seat is rotatably provided on the inner wall of the upper end of the movable sleeve, a worm wheel is fixedly provided on one end of the extrusion seat, a worm is fixedly provided on one side of the worm wheel, the worm is rotatably connected to the inner wall of the movable sleeve, a one-way wheel is fixedly provided on the outer end of the worm, and a transmission frame is fixedly provided on the bottom end of the movable sleeve.

[0016] Preferably, one end of the extrusion frame located in the temperature-controlled sewage pool is connected and fixedly provided with an adjusting wheel, the adjusting wheel is meshed with a transmission rack for transmission, and the outer end of the extrusion frame is slidably matched with a transmission frame.

[0017] Preferably, a slider is rotatably connected to the outer end of the extrusion frame, the slider is slidably matched with the inner wall of the transmission frame, a plurality of transmission teeth are rotatably connected inside the slider, a tension spring is connected between the transmission teeth and the inner wall of the slider, and the transmission teeth are meshed with a one-way wheel for transmission.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. When biological treatment of sewage is carried out in a temperature-controlled sewage pool, the transmission mechanism can be used to drive the biological flocculant salvage net to move up and down, so that the biological flocculants formed in the sewage can be salvaged. At the same time, it will drive the sewage pusher plate to concentrate the biological flocculants on the biological flocculant salvage net into the discharge tank to ensure the separation efficiency of the biological flocculant salvage net. By salvaging and separating the biological flocculants in advance, the accumulation of solid matter in the temperature-controlled sewage pool can be reduced. The timely salvage of the biological flocculants can maintain the stability of microbial activity and ensure that they play the best role in the biological treatment process, thereby improving treatment efficiency, reducing sludge accumulation, optimizing water quality control, promoting microbial management, and reducing equipment burden.

[0020] 2. By setting up a spiral pusher, the spiral pusher can be driven to rotate during the process of moving the biological flocculants up the salvage net, and the salvaged biological flocculants can be automatically discharged through the guide pipe to ensure the cleanliness of the discharge tank, which can reduce manual intervention, realize the automated sewage treatment process, improve efficiency, and be able to efficiently process a large amount of biological flocculants, improve the overall sewage treatment efficiency, and reduce maintenance costs.

[0021] 3. By arranging an extrusion seat and a filter cloth sleeve in the dehydration seat, the extrusion seat can be moved upward under the drive of the extrusion frame to squeeze and dehydrate the biological flocculants in the filter cloth sleeve, effectively remove moisture and recover solid materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the sewage multi-stage separation and purification treatment system based on temperature control and biological treatment of the present invention;

[0023] Figure 2 It is a partial cross-sectional schematic diagram of the overall structure of the sewage multi-stage separation and purification treatment system based on temperature control and biological treatment of the present invention;

[0024] Figure 3 It is a schematic cross-sectional view of the structure of a temperature-controlled sewage pool of the sewage multi-stage separation and purification treatment system based on temperature control and biological treatment of the present invention;

[0025] Figure 4 It is a schematic diagram of the transmission mechanism and other structures of the sewage multi-stage separation and purification treatment system based on temperature control and biological treatment of the present invention;

[0026] Figure 5 It is a schematic cross-sectional view of the discharge tank structure of the sewage multi-stage separation and purification treatment system based on temperature control and biological treatment of the present invention;

[0027] Figure 6 It is a cross-sectional schematic diagram of the centralized mechanism structure of the sewage multi-stage separation and purification treatment system based on temperature control and biological treatment of the present invention;

[0028] Figure 7 It is a schematic cross-sectional view of the dehydration seat structure of the sewage multi-stage separation and purification treatment system based on temperature control and biological treatment of the present invention;

[0029] Figure 8 It is a schematic diagram of the cross-sectional expansion of the structure of the moving sleeve and the like of the sewage multi-stage separation and purification treatment system based on temperature control and biological treatment of the present invention;

[0030] Fig. 9 It is a schematic diagram of the expansion of the extrusion frame structure of the sewage multi-stage separation and purification treatment system based on temperature control and biological treatment of the present invention.

[0031] 1. Temperature-controlled sewage pool; 2. Fixed frame; 3. Biofloc fishing net; 4. Discharge trough; 5. Centralizing mechanism; 6. Dehydration seat; 7. Extrusion frame; 8. Transmission mechanism; 101. Drain pipe; 102. Water inlet pipe; 801. Motor; 802. Threaded rod; 803. Transmission trough; 401. Screw pusher; 402. Universal joint; 403. Transmission wheel; 404. Material guide pipe; 405. Spring ; 406, transmission rack; 501, rotating seat; 502, sliding key; 503, dirt pushing screen; 504, annular rack; 601, material receiving seat; 602, drainage trough; 603, movable sleeve; 604, filter cloth sleeve; 605, extrusion seat; 606, worm gear; 607, worm; 608, one-way wheel; 609, transmission frame; 701, adjusting wheel; 702, transmission tooth; 703, tension spring. DETAILED DESCRIPTION

[0032] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0033] like Figure 1-Figure 9 The sewage multi-stage separation and purification treatment system based on temperature control and biological treatment shown in the figure includes a temperature-controlled sewage pool 1, a fixed frame 2 is connected and fixedly arranged on the temperature-controlled sewage pool 1, a biological flocculant salvage net 3 is slidably arranged in the temperature-controlled sewage pool 1, a discharge trough 4 is connected and fixedly arranged on one side of the biological flocculant salvage net 3, a centralizing mechanism 5 is rotatably connected and arranged on the biological flocculant salvage net 3, a dehydration seat 6 is connected and fixedly arranged on one side of the temperature-controlled sewage pool 1, an extrusion frame 7 is rotatably connected and arranged on the side of the temperature-controlled sewage pool 1 close to the dehydration seat 6, and a transmission mechanism 8 is connected and fixedly arranged on the fixed frame 2.

[0034] like Figure 3 As shown, a drainage pipe 101 is fixedly provided through the bottom of the temperature-controlled sewage pool 1 , and a water inlet pipe 102 is fixedly provided on the outer wall of one side of the temperature-controlled sewage pool 1 .

[0035] like Figure 4 As shown, the transmission mechanism 8 includes a motor 801, the motor 801 is connected and fixedly arranged with the fixing frame 2, the output end of the motor 801 is connected and fixedly arranged with a threaded rod 802, the threaded rod 802 is provided with a transmission groove 803, and the threaded rod 802 is threadedly connected with the biological flocculant salvage net 3. The motor 801 drives the threaded rod 802 to rotate, and at this time, the threaded rod 802 drives the biological flocculant salvage net 3 to move upward.

[0036] like Figure 5 As shown, a spiral pusher 401 is rotatably connected in the discharge tank 4, one end of the spiral pusher 401 passes through the inner wall of the discharge tank 4 and extends to the outside and is connected and fixed with a universal joint 402, the other end of the universal joint 402 is rotatably connected with the biological flocculant salvage net 3, and one end of the universal joint 402 located at the biological flocculant salvage net 3 is connected and fixed with a transmission wheel 403. When the rotating seat 501 rotates, the transmission wheel 403 is driven to rotate through the connected annular rack 504, so that the transmission wheel 403 drives the spiral pusher 401 connected to the universal joint 402 to rotate.

[0037] A guide tube 404 is provided on the inner wall of one end of the discharge groove 4 near the side wall of the temperature-controlled sewage pool 1 in a sliding manner, and the outer wall of the outer end of the guide tube 404 is provided with a conical structure, and the inner end of the guide tube 404 is provided with a plurality of springs 405 connected and fixedly provided in an annular structure, and the other end of the spring 405 is connected and fixedly provided with the inner wall of the discharge groove 4, and a transmission rack 406 is connected and fixedly provided at the bottom of one end of the discharge groove 4 near the side wall of the temperature-controlled sewage pool 1. Under the action of the spring 405, the guide tube 404 is moved out and moved into the material receiving seat 601.

[0038] like Figure 6 As shown, the centralizing mechanism 5 includes a rotating seat 501, which is rotatably connected to the biological flocculant fishing net 3, a sliding key 502 is fixedly connected to the inner wall of the top of the rotating seat 501, and the outer wall of the sliding key 502 is slidably matched with the inner wall of the transmission groove 803. A dirt-pushing net plate 503 is fixedly connected to the rotating seat 501, and an annular rack 504 is fixedly connected to the inner wall of the bottom of the rotating seat 501, and the annular rack 504 is meshed and transmitted with the transmission wheel 403. The threaded rod 802 drives the rotating seat 501 connected to the sliding key 502 to rotate through the transmission groove 803, thereby driving the connected dirt-pushing net plate 503 to rotate.

[0039] like Figure 7 , Figure 8 As shown, a material receiving seat 601 is fixedly provided at the top of the dehydration seat 6, a drainage groove 602 is provided on the inner wall of the dehydration seat 6, a movable sleeve 603 is slidably provided on the inner wall of the dehydration seat 6, a filter cloth sleeve 604 is fixedly provided on the top of the movable sleeve 603, the top of the filter cloth sleeve 604 is fixedly provided on the inner wall of the upper end of the dehydration seat 6, an extrusion seat 605 is rotatably provided on the inner wall of the upper end of the movable sleeve 603, a worm gear 606 is fixedly provided on one end of the extrusion seat 605, a worm 607 is fixedly provided on one side of the worm gear 606, the worm 607 is rotatably connected to the inner wall of the movable sleeve 603 through the inner wall, a one-way wheel 608 is fixedly provided on the outer end of the worm 607, and a transmission frame 609 is fixedly provided on the bottom end of the movable sleeve 603. The extrusion frame 7 rotates, and the extrusion frame 7 will slide in the transmission frame 609, lifting the transmission frame 609, thereby driving the movable sleeve 603 connected to the transmission frame 609 to move upward, so that the extrusion seat 605 extrude and dehydrate the biological flocculants between the filter cloth sleeves 604, and at the same time, the protrusion on the extrusion seat 605 will block the bottom opening of the material receiving seat 601. When the extrusion frame 7 drives the movable sleeve 603 to move downward, it will drive the slider to slide in the transmission frame 609. At this time, the transmission teeth 702 in the slider drive the one-way wheel 608 to rotate under the action of the tension spring 703, so that the one-way wheel 608 drives the connected worm 607 to rotate, so that the worm 607 drives the extrusion seat 605 connected to the worm wheel 606 to flip 180 degrees.

[0040] like Fig. 9As shown, one end of the extrusion rack 7 located in the temperature-controlled sewage pool 1 is connected and fixed with an adjusting wheel 701, the adjusting wheel 701 is meshed with the transmission rack 406 for transmission, and the outer end of the extrusion rack 7 is slidably matched with the transmission frame 609. The transmission rack 406 on the discharge trough 4 drives the extrusion rack 7 connected with the adjusting wheel 701 to rotate.

[0041] The outer end of the extrusion frame 7 is rotatably connected with a slider, which is slidably matched with the inner wall of the transmission frame 609, and a plurality of transmission teeth 702 are rotatably connected in the slider, and a tension spring 703 is connected between the transmission teeth 702 and the inner wall of the slider, and the transmission teeth 702 are meshed with the one-way wheel 608 for transmission. The transmission teeth 702 in the slider drive the one-way wheel 608 to rotate under the action of the tension spring 703.

[0042] Working principle: sewage is discharged into the temperature-controlled sewage pool 1 through the water inlet pipe 102. The temperature-controlled sewage pool 1 controls the temperature and utilizes the degradation effect of microorganisms to further decompose organic pollutants in the water. When the microorganisms decompose, the microorganisms aggregate into biological flocs through interaction.

[0043] Then, the motor 801 is used to drive the threaded rod 802 to rotate. At this time, the threaded rod 802 will drive the biological flocculant salvage net 3 to move upward to salvage the biological flocculants in the sewage. At this time, the threaded rod 802 will drive the rotating seat 501 connected to the sliding key 502 to rotate through the transmission groove 803, thereby driving the connected sewage pushing net plate 503 to rotate, and pushing the biological flocculants on the biological flocculant salvage net 3 into the discharge groove 4.

[0044] Then, when the discharge trough 4 moves out of the temperature-controlled sewage pool 1, the material guide pipe 404 moves out to the material receiving seat 601 under the action of the spring 405, and then when the rotating seat 501 rotates, the connected annular rack 504 drives the transmission wheel 403 to rotate, so that the transmission wheel 403 drives the spiral pushing frame 401 connected to the universal joint 402 to rotate, and pushes the biological flocs into the material receiving seat 601.

[0045] Then the biological flocs will fall between the filter cloth sleeve 604 and the extrusion seat 605 through the material receiving seat 601, and then when the biological flocs salvaging net 3 moves down and resets, it will drive the discharge slot 4 to move down, and then the transmission rack 406 on the discharge slot 4 will drive the extrusion frame 7 connected to the adjusting wheel 701 to rotate, and at this time the extrusion frame 7 will slide in the transmission frame 609 to lift the transmission frame 609, thereby driving the movable sleeve 603 connected to the transmission frame 609 to move up, so that the extrusion seat 605 squeezes and dehydrates the biological flocs between the filter cloth sleeves 604, and at the same time, the protrusion on the extrusion seat 605 will block the bottom opening of the material receiving seat 601 to ensure the dehydration efficiency of the biological flocs, and the separated water will be discharged through the drainage groove 602.

[0046] Then, when the extrusion frame 7 drives the movable sleeve 603 to move downward, it drives the slider to slide in the transmission frame 609. At this time, the transmission tooth 702 in the slider drives the one-way wheel 608 to rotate under the action of the tension spring 703, so that the one-way wheel 608 drives the connected worm 607 to rotate, so that the worm 607 drives the extrusion seat 605 connected to the worm wheel 606 to flip 180 degrees, so that the dehydrated biological flocs on the extrusion seat 605 can fall out of the dehydration seat 6 for collection.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A sewage multi-stage separation and purification treatment system based on temperature control and biological treatment, comprising a temperature-controlled sewage pool (1), characterized in that: A fixing frame (2) is fixedly provided on the temperature-controlled sewage pool (1), a biological flocculant salvage net (3) is slidably provided in the temperature-controlled sewage pool (1), a discharge trough (4) is fixedly provided on one side of the biological flocculant salvage net (3), a centralizing mechanism (5) is rotatably provided on the biological flocculant salvage net (3), a dehydration seat (6) is fixedly provided on one side of the temperature-controlled sewage pool (1), an extrusion frame (7) is rotatably provided through one side of the temperature-controlled sewage pool (1) close to the dehydration seat (6), and a transmission mechanism (8) is fixedly provided on the fixing frame (2).

2. The sewage multi-stage separation and purification treatment system based on temperature control and biological treatment according to claim 1 is characterized in that: A drainage pipe (101) is fixedly provided through the bottom of the temperature-controlled sewage pool (1), and a water inlet pipe (102) is fixedly provided on the outer wall of one side of the temperature-controlled sewage pool (1).

3. The sewage multi-stage separation and purification treatment system based on temperature control and biological treatment according to claim 1 is characterized in that: The transmission mechanism (8) comprises a motor (801), the motor (801) being connected and fixedly arranged with a fixing frame (2), a threaded rod (802) being connected and fixedly arranged with an output end of the motor (801), a transmission groove (803) being provided on the threaded rod (802), and the threaded rod (802) being threadedly connected with a biofloc fishing net (3).

4. The sewage multi-stage separation and purification treatment system based on temperature control and biological treatment according to claim 1 is characterized in that: A spiral pusher frame (401) is rotatably connected in the discharge trough (4), one end of the spiral pusher frame (401) passes through the inner wall of the discharge trough (4) to extend to the outside and is connected and fixedly provided with a universal joint (402), the other end of the universal joint (402) is rotatably connected to the biological flocculant salvage net (3), and one end of the universal joint (402) located at the biological flocculant salvage net (3) is connected and fixedly provided with a transmission wheel (403).

5. The sewage multi-stage separation and purification treatment system based on temperature control and biological treatment according to claim 4 is characterized in that: A guide tube (404) is provided in sliding cooperation with the inner wall of one end of the discharge groove (4) close to the side wall of the temperature-controlled sewage pool (1); the outer wall of the outer end of the guide tube (404) is provided in a conical structure; the inner end of the guide tube (404) is provided with a plurality of springs (405) connected and fixedly provided in an annular structure; the other end of the spring (405) is connected and fixedly provided with the inner wall of the discharge groove (4); and a transmission rack (406) is connected and fixedly provided at the bottom of one end of the discharge groove (4) close to the side wall of the temperature-controlled sewage pool (1).

6. The sewage multi-stage separation and purification treatment system based on temperature control and biological treatment according to claim 1 is characterized in that: The centralizing mechanism (5) comprises a rotating seat (501), the rotating seat (501) being rotatably connected to the biological flocculant salvaging net (3), a sliding key (502) being fixedly connected to the inner wall of the top end of the rotating seat (501), the outer wall of the sliding key (502) being slidably matched with the inner wall of the transmission groove (803), a dirt pushing net plate (503) being fixedly connected to the rotating seat (501), and an annular rack (504) being fixedly connected to the inner wall of the bottom end of the rotating seat (501), the annular rack (504) being meshed and transmitted with the transmission wheel (403).

7. The sewage multi-stage separation and purification treatment system based on temperature control and biological treatment according to claim 1 is characterized in that: A material receiving seat (601) is fixedly connected to the top of the dehydration seat (6), a drainage groove (602) is provided on the inner wall of the dehydration seat (6), a moving sleeve (603) is slidably provided on the inner wall of the dehydration seat (6), a filter cloth sleeve (604) is fixedly connected to the top of the moving sleeve (603), the top of the filter cloth sleeve (604) is fixedly connected to the inner wall of the upper end of the dehydration seat (6), an extrusion seat (605) is rotatably provided on the inner wall of the upper end of the moving sleeve (603), one end of the extrusion seat (605) is fixedly connected to a worm wheel (606), one side of the worm wheel (606) is fixedly connected to a worm (607), the worm (607) penetrates and is rotatably connected to the inner wall of the moving sleeve (603), the outer end of the worm (607) is fixedly connected to a one-way wheel (608), and the bottom end of the moving sleeve (603) is fixedly connected to a transmission frame (609).

8. The sewage multi-stage separation and purification treatment system based on temperature control and biological treatment according to claim 1 is characterized in that: One end of the extrusion frame (7) located in the temperature-controlled sewage pool (1) is connected and fixedly provided with an adjustment wheel (701), the adjustment wheel (701) is meshed with a transmission rack (406) for transmission, and the outer end of the extrusion frame (7) is slidably matched with a transmission frame (609).

9. The sewage multi-stage separation and purification treatment system based on temperature control and biological treatment according to claim 1 is characterized by: A slider is rotatably connected to the outer end of the extrusion frame (7), the slider is slidably matched with the inner wall of the transmission frame (609), a plurality of transmission teeth (702) are rotatably connected to the inside of the slider, a tension spring (703) is connected between the transmission teeth (702) and the inner wall of the slider, and the transmission teeth (702) are meshed with the one-way wheel (608) for transmission.

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