Fabricated sewage treatment reaction device

Abstract

The invention discloses an assembly type sewage treatment reaction device, and relates to the technical field of sewage treatment, the assembly type sewage treatment reaction device comprises a reaction tank, a secondary sedimentation tank and a sludge tank which are communicated in sequence; the reaction tank comprises a first-stage A tank, a first-stage O tank, a second-stage A tank and a second-stage O tank which are communicated in sequence; the reaction tank is provided with a deslagging unit; the first-stage A tank and the second-stage A tank are respectively provided with a stirring piece, and the first-stage O tank and the second-stage O tank are respectively provided with an aeration piece; two groups of bearing columns are symmetrically arranged in each of the first-stage A tank, the first-stage O tank, the second-stage A tank and the second-stage O tank up and down, and the bearing columns extend along sewage transmission; the supporting columns are evenly arranged at intervals in the length direction of the bearing column, the upper supporting column and the lower supporting column are in one-to-one correspondence, and the bearing column is provided with a connecting assembly capable of detachably fixing the supporting columns; a biological rope filler; the secondary sedimentation tank is provided with a central cylinder and a sludge discharge pump, and the sludge discharge pump is connected with the sludge tank. The construction speed can be increased conveniently.

Description

Technical Field

[0001] This application relates to the technical field of wastewater treatment, and in particular to a prefabricated wastewater treatment reaction device. Background Technology

[0002] In the field of wastewater treatment, biological treatment technologies, represented by anaerobic-aerobic (A / O) processes and their derivatives, have been widely applied. Their core lies in achieving graded removal of pollutants through functionally zoned reaction tanks (such as A tanks, O tanks, secondary sedimentation tanks, and sludge tanks). Traditional processes typically rely on on-site constructed reinforced concrete tanks or integrally welded steel tanks, with each tank arranged in series according to the process flow. Although this model is technologically mature, its construction method is fixed, the construction period is long, and it is difficult to flexibly adjust or quickly expand according to actual changes in water quality and quantity. Therefore, it lacks adaptability to meet decentralized, modular, or emergency wastewater treatment needs.

[0003] From a structural perspective, existing A / O wastewater treatment systems typically design each functional tank as a fixed-volume monolithic structure. Internal components such as packing frames, aeration devices, and mixing equipment must be installed one by one after the tank body is built, and then welded or anchored to the tank body. In particular, biological packing materials often need to be tied or fixed on-site to welded supports, and aeration discs, mixers, and other equipment often need to be rigidly connected to the tank bottom or walls. This structure makes it difficult to adjust the layout of internal components, and subsequent maintenance or replacement often requires entry into the tank, affecting the continuity and safety of system operation.

[0004] Of particular note is that the large size of the reaction tank results in numerous welding points on the packing support, making construction and fabrication inconvenient. Summary of the Invention

[0005] To facilitate faster construction, this application provides a prefabricated wastewater treatment reaction device.

[0006] This application provides a prefabricated wastewater treatment reactor, which adopts the following technical solution: A prefabricated wastewater treatment reaction device includes a reaction tank, a secondary sedimentation tank, and a sludge tank connected in sequence. The reaction tank includes a primary A tank, a primary O tank, a secondary A tank, and a secondary O tank connected in sequence, and the length direction of the reaction tank opening is parallel to the sewage transmission direction. The reaction tank is equipped with a sludge discharge unit connected to the sludge tank; The primary A tank and the secondary A tank are each equipped with a stirring element, and the primary O tank and the secondary O tank are each equipped with an aeration element; Two sets of support columns are symmetrically arranged vertically in the primary A tank, the primary O tank, the secondary A tank, and the secondary O tank. Each set of support columns has two columns and they are symmetrically arranged along the width of the reaction tank. The support columns extend along the sewage transport path. Support columns are arranged between two opposing load-bearing columns in the same group. There are multiple support columns, which are evenly spaced along the length of the load-bearing columns. The upper and lower support columns correspond one to one. The load-bearing columns are provided with connecting components that can be detachably fixed to the support columns. The bio-rope filler has multiple pieces that are evenly spaced and connected between the upper and lower opposing support columns; The secondary sedimentation tank is equipped with a central cylinder and a sludge discharge pump, which is connected to the sludge tank.

[0007] By adopting the above technical solution, wastewater can be treated sequentially in the reaction tank, secondary sedimentation tank, and sludge tank. The wastewater is treated in stages using a primary A tank, a primary O tank, a secondary A tank, and a secondary O tank, improving the wastewater treatment efficiency. The sludge discharge unit can discharge waste sludge from the reaction tank to the sludge tank for centralized treatment. The mixing and aeration components function in the anaerobic and aerobic tanks respectively, promoting microbial metabolism. The support columns, connecting components, and other components form a detachable structure, facilitating the installation and disassembly of the biological rope packing material, and simplifying future maintenance and replacement. The central cylinder of the secondary sedimentation tank and the sludge pump achieve sludge-water separation and discharge the sludge to the sludge tank.

[0008] Optionally, the connecting assembly includes a connecting screw and a connecting nut; The connecting screw is disposed at both ends of the support column, the bearing column has through holes for the connecting screw to pass through, and the connecting nut is threadedly connected to the connecting screw.

[0009] By adopting the above technical solution, the connection between the support column and the load-bearing column becomes detachable, reducing welding, facilitating construction and manufacturing, and making it easier to maintain or replace the support column later.

[0010] Optionally, multiple support rings are uniformly spaced along the axial direction on the outer periphery of the support column, and a first support block is symmetrically arranged on the outer periphery of the lower support ring in the horizontal direction. The biological rope packing material is multiple and corresponds one-to-one with the first support block. The reaction tank is equipped with a desorption box located directly above the support column. The desorption box has a desorption groove and is equipped with an inlet pipe and a drain pipe. The desorption box is rotatably connected to a winding shaft located in the desorption groove and corresponding one-to-one with the biological rope filler. The desorption box is equipped with a drive assembly, and the drive assembly rotates synchronously and in opposite directions with the winding shaft. The biological rope packing is connected to a first connecting rope at one end near the desorption box, and the first connecting rope is connected to the outer periphery of the winding shaft. A rotating shaft is rotatably connected inside the first support block, and a second connecting rope is connected to one end of the bio-rope filler near the first support block. The second connecting rope slides through the first support block and is connected to the rotating shaft. The first support block is equipped with a power component for winding the second connecting rope around the rotating shaft. When one of the biological rope fillers is wound around the winding shaft, the other biological rope filler is located inside the reaction tank.

[0011] By adopting the above technical solution, the bio-rope packing material can be easily desorbed without entering the reaction tank, ensuring the continuity and safety of the system operation. At the same time, the position of the bio-rope packing material in the reaction tank and the desorption box can be flexibly switched, improving the wastewater treatment efficiency.

[0012] Optionally, the power component includes a power coil spring, which is wound around the outer periphery of the rotating shaft. One end of the power coil spring is engaged with the outer periphery of the rotating shaft, and the other end is engaged with the first support block.

[0013] By adopting the above technical solution, the power coil spring can automatically wind the second connecting rope, so that the biological rope packing can automatically return to the reaction tank after desorption, without the need for manual operation, thereby improving the efficiency of biological rope packing desorption and repositioning and ensuring the continuity of sewage treatment system operation.

[0014] Optionally, the drive assembly includes a drive motor, a drive chain, a drive gear, and a transmission gear; One of the winding shafts protrudes into the desorption box, the drive motor is disposed in the reaction tank, and the output shaft of the drive motor is connected to the winding shaft; The drive gear is disposed on the outer periphery of the winding shaft, and the drive chain is sleeved on the outer periphery of the drive gear; There are multiple transmission gears, each disposed on the outer periphery of the winding shaft, and adjacent transmission gears mesh with each other.

[0015] By adopting the above technical solution, the drive motor drives the winding shaft, and the drive chain, drive gear and transmission gear are used to realize the synchronous and reverse rotation of multiple winding shafts. This allows some of the biological rope packing to enter the desorption box for cleaning, while another part of the biological rope packing is kept in the reaction tank for sewage treatment, thereby improving the working efficiency of the equipment and ensuring the continuity of sewage treatment.

[0016] Optionally, the top of the desorption box is symmetrically and rotatably connected to guide rollers, and the first connecting rope and the bio-rope filler are slidably connected to the guide rollers.

[0017] By adopting the above technical solution, the guide roller can make the first connecting rope and the biological rope packing move more smoothly, reduce friction and jamming, reduce the possibility of the biological rope packing getting tangled or damaged when entering and leaving the desorption box, and improve the stability and efficiency of the biological rope packing desorption operation.

[0018] Optionally, the desorption box is provided with a limiting ring corresponding to each of the biological rope fillers, the biological rope fillers are slidably inserted through the limiting rings, and the connection point between the second connecting rope and the winding shaft is away from the limiting rings.

[0019] By adopting the above technical solution, the position of the bio-rope packing material can be kept stable during movement, the possibility of confusion at the connection point between the bio-rope packing material and the winding shaft can be reduced, and the bio-rope packing material can be moved smoothly between the reaction tank and the desorption tank.

[0020] Optionally, a second support block is provided on the outer periphery of the upper support ring in a horizontal direction, and the second support block has a through hole for the first connecting rope and the biological rope filler to slide through.

[0021] By adopting the above technical solution, the first connecting rope and the biological rope filler can pass smoothly through the second support block, ensuring smooth movement of the biological rope filler, reducing the possibility of jamming or displacement of the first connecting rope and the biological rope filler during movement, and improving the stability of the biological rope filler detachment and use.

[0022] In summary, this application includes at least one of the following beneficial effects: 1. The prefabricated wastewater treatment reactor, through the sequentially connected reaction tank, secondary sedimentation tank and sludge tank, as well as the setting of various functional tanks within the reaction tank, can realize the graded treatment of wastewater and effectively remove pollutants from the wastewater. 2. The load-bearing column and the support column are detachably connected by a connecting component, which facilitates the installation and disassembly of the biological rope packing and solves the problems of multiple welding points and inconvenient construction and manufacturing of traditional packing support. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the secondary A pool in the embodiments of this application; Figure 3 This is a schematic diagram of the internal structure of the secondary A pool in an embodiment of this application; Figure 4 yes Figure 3 Enlarged schematic diagram of part A; Figure 5 yes Figure 2 Enlarged schematic diagram of part B; Figure 6 This is a schematic diagram of the internal structure of the first support block in an embodiment of this application; Figure 7 yes Figure 6 Enlarged schematic diagram of part C.

[0024] Reference numerals: 1. Reaction tank; 11. Primary A tank; 12. Primary O tank; 13. Secondary A tank; 14. Secondary O tank; 2. Secondary sedimentation tank; 3. Sludge tank; 4. Support column; 5. Support column; 51. Support ring; 52. First support block; 53. Rotating shaft; 54. Power coil spring; 55. Second support block; 6. Connecting assembly; 61. Connecting screw; 62. Connecting nut; 7. Biological rope packing; 71. First connecting rope; 72. Second connecting rope; 8. Desorption box; 81. Desorption tank; 82. Inlet pipe; 83. Drain pipe; 84. Winding shaft; 85. Guide roller; 86. Limiting ring; 9. Drive assembly; 91. Drive motor; 92. Drive chain; 93. Drive gear; 94. Transmission gear. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0026] This application discloses a prefabricated wastewater treatment reaction device. Example

[0027] See Figure 1 and Figure 2 This application mainly adopts the design of prefabricated reaction tank 1 and biological rope packing 7, which achieves the effects of flexible assembly, convenient maintenance and efficient sewage treatment. The following is a further detailed description of this application.

[0028] See Figure 1 The prefabricated wastewater treatment reaction device provided in this application includes a reaction tank 1, a secondary sedimentation tank 2, and a sludge tank 3 connected in sequence. The reaction tank 1, the secondary sedimentation tank 2, and the sludge tank 3 are connected in sequence to form a complete wastewater treatment process. Wastewater can flow orderly between the tanks to achieve graded treatment and effectively remove pollutants from the wastewater.

[0029] Specifically, reaction tank 1 includes a primary A tank 11, a primary O tank 12, a secondary A tank 13, and a secondary O tank 14 connected in sequence. This arrangement allows for multi-stage anaerobic and aerobic treatment of wastewater, more thoroughly removing various pollutants from the wastewater. Primary A tanks 11 and 13 provide anaerobic environments, while primary O tanks 12 and 14 provide aerobic environments. These different environments promote the growth and metabolism of different microorganisms, thereby achieving the removal of different pollutants from the wastewater. The length of the inlet of reaction tank 1 is parallel to the direction of wastewater flow. This layout allows wastewater to flow more smoothly within reaction tank 1, reducing flow resistance and increasing the flow distance within the tank, thus improving treatment efficiency.

[0030] The reaction tank 1 is equipped with a sludge discharge unit connected to the sludge tank 3. The sludge discharge unit can discharge the sludge and other impurities settled in the reaction tank 1 to the sludge tank 3 for treatment, ensuring the water quality and treatment effect in the reaction tank 1. The sludge discharge unit can be a structure such as a pipeline, which transports the sludge to the sludge tank 3 by gravity or a pump.

[0031] Both the primary A tank 11 and the secondary A tank 13 are equipped with agitators, such as mixers. The agitators ensure thorough mixing of the wastewater in the anaerobic environment, allowing microorganisms to fully contact the pollutants and improving the anaerobic treatment effect. Both the primary O tank 12 and the secondary O tank 14 are equipped with aeration devices, such as aeration discs, which inject air into the tanks, providing sufficient oxygen for the aerobic microorganisms and promoting their decomposition of pollutants in the wastewater.

[0032] See Figure 1 and Figure 3 Two sets of support columns 4 are symmetrically fixed vertically within each of the primary A tank 11, primary O tank 12, secondary A tank 13, and secondary O tank 14. Each set of support columns 4 consists of two columns, symmetrically arranged along the width of the reaction tank 1, extending along the wastewater transport path. The support columns 4 can be constructed of I-beams, possessing sufficient strength and stability to support other components. Support columns 5 are positioned between two opposing support columns 4 within the same set. Multiple support columns 5 are evenly spaced along the length of the support columns 4, with one upper and one lower support column 5 corresponding to each other. Each support column 4 is equipped with a detachable connecting component 6 for fixing the support column 5 (the connecting component 6 is located in...). Figure 4 (Selected from the bid). This structure makes the installation and disassembly of support column 5 very convenient, facilitating later maintenance and adjustment.

[0033] See Figure 2 and Figure 3The bio-rope packing material 7 consists of multiple evenly spaced components connected between the upper and lower opposing support columns 5. The bio-rope packing material 7 provides a habitat for microorganisms to attach and grow, increasing the number and activity of microorganisms and improving wastewater treatment efficiency. The bio-rope packing material 7 can be made of materials with good biocompatibility, such as plastics.

[0034] See Figure 1 The secondary sedimentation tank 2 is equipped with a central cylinder and a sludge pump, which is connected to the sludge tank 3. The central cylinder allows for better sedimentation and separation of wastewater in the secondary sedimentation tank 2, while the sludge pump transports the sludge settled at the bottom of the secondary sedimentation tank 2 to the sludge tank 3, ensuring the treatment effect and normal operation of the secondary sedimentation tank 2. In the accompanying drawings of this application, the central cylinder and sludge pump are prior art and are therefore not shown.

[0035] The implementation principle of the prefabricated wastewater treatment reaction device in Embodiment 1 of this application is as follows: This prefabricated wastewater treatment reactor achieves graded treatment of wastewater through the orderly connection and rational layout of multiple functional tanks, improving the efficiency and effectiveness of wastewater treatment. The placement of components such as agitators, aeration units, bearing columns 4, support columns 5, and biological rope packing 7 within each tank provides favorable conditions for microbial growth and metabolism, promoting pollutant removal. Simultaneously, the detachable connection components 6 facilitate component installation and maintenance, improving the continuity and safety of system operation. This design solves problems such as rigid construction methods, long construction cycles, and difficulties in adjusting the internal component layout of traditional wastewater treatment systems, representing a significant improvement and contribution to existing technologies. Example

[0036] See Figure 4 The difference between this embodiment and the previous embodiment is that the connecting component 6 includes a connecting screw 61 and a connecting nut 62. The connecting screw 61 is located at both ends of the support column 5, and the bearing column 4 has through holes for the connecting screw 61 to pass through. The connecting nut 62 is threadedly connected to the connecting screw 61. This connection method makes the connection between the support column 5 and the bearing column 4 more secure and stable, and also facilitates disassembly and installation. The connecting screw 61 and the connecting nut 62 can be made of metal, which has high strength and corrosion resistance.

[0037] The implementation principle of a prefabricated wastewater treatment reaction device according to Embodiment 2 of this application is as follows: The connection between the connecting screw 61 and the connecting nut 62 enables a detachable connection between the support column 5 and the load-bearing column 4, facilitating the installation and maintenance of the components. When the position of the support column 5 needs adjustment or maintenance, it can be easily disassembled and reinstalled, improving the system's flexibility and maintainability, and further addressing the difficulties in component connection and maintenance in existing technologies. Example

[0038] See Figure 4 The difference between this embodiment and the previous embodiment is that: multiple support rings 51 are evenly spaced along the axial direction on the outer periphery of the support column 5, and a first support block 52 is symmetrically fixed to the outer periphery of the lower support ring 51 in the horizontal direction. The support rings 51 and the first support block 52 can be made of materials such as plastic or metal, and have a certain strength and stability.

[0039] See Figure 2 and Figure 3 There are multiple biological rope fillers 7, each corresponding one-to-one with the first support block 52, in reaction tank 1 (reaction tank 1 is in Figure 1 The desorption box 8 (as indicated by the bid) is installed and fixedly positioned directly above the support column 5. The desorption box 8 has a desorption tank 81, and is connected and fixedly connected to an inlet pipe 82 and a drain pipe 83. The desorption box 8 can be made of corrosion-resistant materials, such as stainless steel. The inlet pipe 82 and the drain pipe 83 are used to inject and discharge desorption liquid into the desorption tank 81 to clean and desorb the biological rope packing 7.

[0040] See Figure 5 and Figure 6 The desorption box 8 is rotatably connected to a set of winding shafts 84 located within the desorption tank 81. Each set of winding shafts 84 has two shafts, each corresponding to a biological rope filler 7. The desorption box 8 is equipped with a drive assembly 9, which causes the two winding shafts 84 in the same set to rotate synchronously and in opposite directions. The drive assembly 9 includes a drive motor 91, a drive chain 92, a drive gear 93, and a transmission gear 94. One end of one of the two winding shafts 84 in the same set protrudes outside the desorption box 8. The drive motor 91 is mounted and fixed to the reaction tank 1 (the reaction tank 1 is located in...). Figure 1 At the top (marked), the output shaft of the drive motor 91 is connected and fixed to the winding shaft 84 and is coaxially arranged. The drive motor 91 can provide power to drive the winding shaft 84 to rotate.

[0041] The drive gear 93 is fixedly connected to the outer periphery of the winding shaft 84, and the drive chain 92 is sleeved on the outer periphery of the drive gear 93 of each group of winding shafts 84. The cooperation of the drive chain 92 and the drive gear 93 can transmit the power of the drive motor 91 to each group of winding shafts 84, so as to realize the synchronous rotation of each group of winding shafts 84.

[0042] There are multiple transmission gears 94, each fixed to the outer periphery of the winding shaft 84, and adjacent transmission gears 94 of the same group of winding shafts 84 mesh with each other. The transmission gears 94 can ensure the reverse rotation between the winding shafts 84, so that the bio-rope filler 7 can be wound and released in an orderly manner.

[0043] The biological rope filler 7 is connected and fixed to a first connecting rope 71 at one end near the desorption box 8. The first connecting rope 71 is connected and fixed to the outer periphery of the winding shaft 84, and the first connecting rope 71 is wound around the outer periphery of one of the winding shafts 84. The first connecting rope 71 can be a high-strength rope to ensure that it will not break when the biological rope filler 7 is pulled.

[0044] See Figure 5 and Figure 7 A rotating shaft 53 is rotatably connected inside the first support block 52. A second connecting rope 72 is fixedly connected to one end of the bio-rope packing 7 near the first support block 52. The second connecting rope 72 slides through the first support block 52 and is fixedly connected to the rotating shaft 53, and is wound around the corresponding rotating shaft 53 below. The first support block 52 is equipped with a power component, which drives the rotating shaft 53 to rotate and wind the second connecting rope 72. When one of the bio-rope packing 7s is wound around the winding shaft 84, the other bio-rope packing 7 is located in the reaction tank 1 (the reaction tank 1 is in...). Figure 1 (The text is incomplete and contains errors. A more accurate translation would require the full context.) The power component could be a power coil spring 54, providing power for the rotating shaft 53 to wind the second connecting rope 72. The power coil spring 54 is wound around the outer periphery of the rotating shaft 53, with one end engaged with the outer periphery of the rotating shaft 53 and the other end engaged with the first support block 52. When the power coil spring 54 elastically releases, it drives the rotating shaft 53 to rotate. At this time, the rotating shaft 53 winds the second connecting rope 72, causing the bio-rope packing 7 to be located within the reaction tank 1. When the winding shaft 84 winds the bio-rope packing 7, the power coil spring 54 enters an elastically contracted state.

[0045] The implementation principle of a prefabricated wastewater treatment reaction device according to Embodiment 3 of this application is as follows: By incorporating structures such as the desorption box 8 and the drive assembly 9, the bio-rope packing 7 can be periodically cleaned and desorbed, maintaining its activity and treatment effectiveness. When cleaning is required, the drive assembly 9 rotates the winding shaft 84, winding one of the bio-rope packing 7s onto the winding shaft 84, allowing it to enter the desorption tank 81 for cleaning. After cleaning, the power unit drives the rotating shaft 53 to rotate, returning the desorbed bio-rope packing 7 to the reaction tank 1. At this time, the other bio-rope packing 7 enters the desorption tank 81 and winds around the outer periphery of the winding shaft 84. This design improves the service life and treatment efficiency of the bio-rope packing 7, solves the problem of difficult maintenance of the bio-rope packing 7 in the prior art, and represents a significant improvement over existing technologies. Example

[0046] See Figure 5The difference between this embodiment and the previous embodiment is that: the top of the desorption box 8 is symmetrically and rotatably connected to guide rollers 85, and the first connecting rope 71 and the biological rope packing 7 are slidably connected to the guide rollers 85. The guide rollers 85 can guide the movement direction of the first connecting rope 71 and the biological rope packing 7, reducing friction and wear.

[0047] The desorption box 8 is fixedly connected with a limiting ring 86 corresponding to the biological rope packing 7. The biological rope packing 7 slides through the limiting ring 86, and the connection point between the second connecting rope 72 and the winding shaft 84 is away from the limiting ring 86. The limiting ring 86 can limit the biological rope packing 7 and ensure the stability of the biological rope packing 7 during movement.

[0048] A second support block 55 is fixedly connected to the outer periphery of the upper support ring 51 in the horizontal direction. The second support block 55 has a through hole for the first connecting rope 71 and the biological rope filler 7 to slide through. The second support block 55 can provide support and guidance for the movement of the first connecting rope 71 and the biological rope filler 7.

[0049] The implementation principle of a prefabricated wastewater treatment reaction device according to Embodiment 4 of this application is as follows: By setting up the guide roller 85, the limiting ring 86, and the second support block 55, the movement process of the bio-rope filler 7 is further optimized, the stability and reliability of the system are improved, and the cleaning and maintenance of the bio-rope filler 7 are made more efficient and convenient, which is a significant improvement and enhancement to the existing technology.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fabricated sewage treatment reaction device, characterized in that: The reaction tank (1), the secondary sedimentation tank (2) and the sludge tank (3) are sequentially communicated. The reaction tank (1) comprises a first-stage A tank (11), a first-stage O tank (12), a second-stage A tank (13) and a second-stage O tank (14) which are sequentially communicated, and the length direction of the tank mouth of the reaction tank (1) is parallel to the transmission direction of the sewage. The reaction tank (1) is provided with a residue discharging unit connected with the sludge tank (3). The first-stage A tank (11) and the second-stage A tank (13) are respectively provided with stirring members, and the first-stage O tank (12) and the second-stage O tank (14) are respectively provided with aeration members. Two groups of bearing columns (4) are symmetrically arranged in the first-stage A tank (11), the first-stage O tank (12), the second-stage A tank (13) and the second-stage O tank (14) in an up-down manner, each group of the bearing columns (4) has two bearing columns (4) which are symmetrically arranged along the width direction of the reaction tank (1), and the bearing columns (4) extend along the sewage transmission direction. Support columns (5) are arranged between the two bearing columns (4) in the same group, the support columns (5) are uniformly and spacedly arranged along the length direction of the bearing columns (4), and the support columns (5) correspond to each other in an up-down manner, and the bearing columns (4) are provided with connecting assemblies (6) for detachably fixing the support columns (5). A plurality of biological rope fillings (7) are uniformly and spacedly connected between the support columns (5) in an up-down manner. The secondary sedimentation tank (2) is provided with a central cylinder and a sludge pump, and the sludge pump is connected with the sludge tank (3).

2. The assembled sewage treatment reaction device according to claim 1, characterized in that: The connecting assembly (6) comprises a connecting screw rod (61) and a connecting nut (62). The connecting screw rod (61) is arranged at the two ends of the support column (5), the bearing column (4) is provided with a penetrating hole for penetrating the connecting screw rod (61), and the connecting nut (62) is threadedly connected with the connecting screw rod (61).

3. The assembled sewage treatment reaction device according to claim 1, characterized in that: A plurality of support rings (51) are uniformly and spacedly arranged on the outer circumferential side of the support column (5) in an axial direction, and the support rings (51) located at the lower side are symmetrically arranged in a horizontal direction and provided with first support blocks (52) on the outer circumferential side. A plurality of biological rope fillings (7) correspond to the first support blocks (52) in a one-to-one manner, the reaction tank (1) is provided with a desorption box (8) located directly above the support column (5), the desorption box (8) is provided with a desorption groove (81), and the desorption box (8) is provided with a liquid inlet pipe (82) and a liquid outlet pipe (83). The desorption box (8) is rotationally connected with a winding shaft (84) located in the desorption groove (81) and corresponding to the biological rope filling (7) in a one-to-one manner, the desorption box (8) is provided with a driving assembly (9), and the driving assembly (9) drives the winding shaft (84) to rotate synchronously and reversely. The biological rope filling (7) is connected with a first connecting rope (71) at one end close to the desorption box (8), and the first connecting rope (71) is connected to the outer circumferential side of the winding shaft (84). A rotating shaft (53) is rotatably connected in the first supporting block (52), and a second connecting rope (72) is connected to one end of the biological rope filler (7) close to the first supporting block (52), and the second connecting rope (72) is slidably arranged in the first supporting block (52) and connected to the rotating shaft (53). The first supporting block (52) is provided with a power member for winding the second connecting rope (72) around the rotating shaft (53), and when one of the biological rope fillers (7) is wound around the winding shaft (84), the other biological rope filler (7) is located in the reaction tank (1).

4. The assembled sewage treatment reaction device according to claim 3, characterized in that: The power member includes a power coil spring (54) wound around the outer periphery of the rotating shaft (53), one end of the power coil spring (54) is clamped to the outer periphery of the rotating shaft (53), and the other end is clamped to the first supporting block (52).

5. The assembled sewage treatment reaction device according to claim 3, characterized in that: The driving assembly (9) includes a driving motor (91), a driving chain (92), a driving gear (93), and a transmission gear (94). One of the winding shafts (84) protrudes to the desorption box (8), the driving motor (91) is arranged in the reaction tank (1), and the output shaft of the driving motor (91) is connected to the winding shaft (84). The driving gear (93) is arranged on the outer periphery of the winding shaft (84), and the driving chain (92) is sleeved on the outer periphery of the driving gear (93). The transmission gears (94) are arranged on the outer periphery of the winding shaft (84), and adjacent transmission gears (94) are engaged.

6. The assembled sewage treatment reaction device according to claim 3, characterized in that: The desorption box (8) is symmetrically arranged on the top and rotatably connected with a guide roller (85), and the first connecting rope (71) and the biological rope filler (7) are slidably connected to the guide roller (85).

7. The assembled sewage treatment reaction device according to claim 6, characterized in that: The desorption box (8) is provided with a limiting ring (86) corresponding to the biological rope filler (7), the biological rope filler (7) is slidably arranged in the limiting ring (86), and the connecting point of the second connecting rope (72) and the winding shaft (84) is away from the limiting ring (86).

8. The assembled sewage treatment reaction device according to claim 3, characterized in that: The outer periphery of the upper supporting ring (51) is provided with a second supporting block (55) in the horizontal direction, and the second supporting block (55) is provided with a through hole for the first connecting rope (71) and the biological rope filler (7) to slide through.

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