A low-flow prevention seat tank for wastewater neutralization

Abstract

The application discloses a wastewater neutralization reaction tank capable of preventing low-flow sitting groove, and relates to the technical field of neutralization reaction tanks.The wastewater neutralization reaction tank comprises a base and a top cover, the base and the top cover are connected together through a plurality of module inner shafts, a spiral guide groove is formed in the outer side of the module inner shafts, a bottom tank body, a plurality of module tank bodies and a top tank body are sequentially arranged from bottom to top between the base and the top cover, four groups of sliding frames are arranged on the inner walls of the bottom tank body and the module tank bodies, elastic connecting pieces are slidably connected in the sliding frames, transmission sleeves are arranged between two groups of elastic connecting pieces at the same height, the transmission sleeves are sleeved on the outer sides of the module inner shafts, and stirrers are arranged between the two groups of transmission sleeves.The bottom tank body, the module tank bodies and the top tank body are synchronously lifted through the jacking hydraulic cylinders, sewage is vertically stirred, the stirrers horizontally stir the wastewater, the phenomenon that there is a stirring dead zone in the tank bodies is avoided, and the generation of the sitting groove phenomenon is effectively prevented.

Description

Technical Field

[0001] This invention relates to the field of neutralization reaction vessel technology, and more specifically to a wastewater neutralization reaction vessel that prevents low-flow-rate tank settling. Background Technology

[0002] With the acceleration of industrialization, wastewater treatment has become a critical issue in the environmental protection field. Wastewater neutralization tanks are key equipment in wastewater treatment systems, primarily using the addition of acids or alkalis to neutralize wastewater, thereby removing harmful substances and adjusting water quality. Common wastewater neutralization tanks include acidic and alkaline wastewater neutralization tanks, which are typically equipped with stirring devices and feeding systems to ensure thorough mixing of wastewater and chemical reagents.

[0003] A Chinese patent (publication number: CN118515353B) discloses a phosphate wastewater dosing neutralization reaction tank, including a premixing tank with an inlet pipe at the top and an outlet pipe at the bottom, and a dosing tank including a dosing pipe, a piston, and a cylinder. One end of the dosing pipe is connected to the side of the dosing tank, and the other end is connected to a dosing pump. The piston is slidably arranged along the height direction of the dosing tank. The power output end of the cylinder is connected to the piston to drive the piston to move up and down. The highest point of the piston when it moves is higher than the dosing pipe.

[0004] The above-mentioned application and existing technology have the following technical problems in actual use: 1. As a core piece of equipment in the wastewater treatment process, the rationality and flexibility of the neutralization reactor's design directly affect the efficiency, stability, and economy of the entire wastewater treatment system. Traditional neutralization reactors typically employ a fixed design, failing to fully consider variations in flow rates, wastewater composition, and treatment scale that may occur during actual operation. This means that once the system is put into use, the treatment capacity and process design often cannot be flexibly adjusted according to changing demands. When the main components and treatment volume of the wastewater in the factory change, traditional reactors may not be able to adapt in time, leading to decreased reaction efficiency or an inability to meet new treatment requirements.

[0005] 2. The mixing process of phosphate wastewater in the premixing tank described in the above application mainly relies on the movement and rotation of the dosing and stirring pipe. Theoretically, it is possible to add chemicals evenly at different heights. However, the vertical movement range of the stirring pipe is limited, resulting in insufficient stirring strength. This leads to dead zones in the water flow in certain areas, which cannot be effectively stirred. Settling may occur in these areas, meaning that solid substances in the solution cannot be effectively stirred up, forming accumulations and causing the tank to become stagnant. Summary of the Invention

[0006] The purpose of this invention is to provide a wastewater neutralization reaction tank that prevents low-flow-rate tank settling, in order to solve the above-mentioned problems.

[0007] To achieve the above objectives, the present invention specifically adopts the following technical solution: A wastewater neutralization reaction tank with low-flow-rate bottoming capability includes a base and a top cover. The base and top cover are connected together by several modular inner shafts. A spiral guide groove is provided on the outer side of the modular inner shaft. A bottom tank, several modular tanks, and a top tank are arranged sequentially from bottom to top between the base and the top cover. The inner walls of the bottom tank and the modular tanks are provided with four sets of sliding frames. Elastic connectors are slidably connected inside the sliding frames. A transmission sleeve is provided between two sets of elastic connectors at the same height. The transmission sleeve is sleeved on the outer side of the modular inner shaft. An agitator is provided between the two sets of transmission sleeves. The agitator is sleeved on the modular inner shaft, and the inner wall of the agitator is provided with a transmission protrusion inserted into the spiral guide groove. A dosing assembly is provided on the outer side of both the bottom tank and the modular tank. The outer sides of the bottom tank and the module tank are provided with quick-locking components, and the bottom of the top tank and the module tank are provided with locking clips. When the elastic connector slides, it can drive the quick-locking components to lock onto the locking clips. The base has several lifting hydraulic cylinders arranged in a ring around its outer side, and the bottom tank has a lifting skirt on its outer side. The telescopic ends of the lifting hydraulic cylinders are fixedly connected to the lifting skirt, and the bottom of the base has an inlet pipe and a drain pipe.

[0008] Furthermore, a bottom shaft is provided at the inner bottom of the base, a top shaft is provided at the inner top of the top cover, threaded joints are provided at the top of both the inner shaft of the module and the bottom shaft, threaded holes are provided at the bottom of both the inner shaft of the module and the top shaft, and threaded pin holes are provided through the outer sides of both the threaded joints and the threaded holes.

[0009] Furthermore, the spiral directions of the spiral guide grooves on the inner shafts of adjacent modules are opposite.

[0010] Furthermore, the helical spacing of the helical guide grooves on the inner shafts of adjacent modules is different.

[0011] Furthermore, the quick-lock assembly includes a bracket and a slide fixedly installed on the outside of the module tank. A locking shaft is rotatably installed inside the bracket. A locking screw is provided at the top of the locking shaft. A locking nut is threaded onto the locking screw. A sliding sleeve is provided at the bottom of the locking nut. The sliding sleeve is slidably connected in the slide. A one-way transmission wheel is provided on the outside of the locking shaft. The assembly also includes a transmission rack slidably connected in the slide frame. The transmission rack passes through the module tank and meshes with the transmission wheel. The bottom of the locking component has an insertion port and a locking groove. The locking nut can pass through the insertion port, and the sliding sleeve can slide into the locking groove. The outer diameter of the locking nut is larger than the width of the locking groove.

[0012] Furthermore, the inner wall of the transmission wheel is provided with a transmission slot, and the outer side of the lock shaft is provided with a sliding hole. A one-way transmission block is slidably connected inside the sliding hole. A top spring is provided between the one-way transmission block and the inner wall of the sliding hole. The cross-sections of the one-way transmission block and the transmission slot are both trapezoidal. When the transmission rack slides to the outside of the module tank, the trapezoidal inclined surface of the one-way transmission block is subjected to force.

[0013] Furthermore, the elastic connector is a single piece of spring sheet, which is fixedly connected to the transmission gear.

[0014] Furthermore, the elastic connector consists of a tension spring, a slide rod, and a rocker arm. The slide rod is slidably connected to the slide frame and is connected to the transmission rack via the tension spring. The transmission rack has a T-shaped design. The end of the slide rod away from the slide frame is hinged to a rocker arm, and the other end of the rocker arm is hinged to the transmission sleeve.

[0015] Furthermore, the dosing assembly includes a dosing tube and a pH sensor.

[0016] Furthermore, the inner bottom of the base and the inner top of the top cover are both arc-shaped, and sliding seals are fitted onto the outer sides of both the base and the top cover. The base is sealed and inserted into the bottom tank, and the top cover is sealed and inserted into the top tank. Sealing grooves are provided on the top of both the bottom tank and the module tank, and sealing rings are provided on the bottom of both the top tank and the module tank. The sealing rings can be sealed and inserted into the sealing grooves.

[0017] The beneficial effects of this invention are as follows: 1. The tank of this invention adopts a modular design. The modular tanks can be automatically sealed and connected through quick-lock components and locking clips. Different numbers of modular tanks can be set according to the processing scale. Furthermore, through the setting of the internal shaft of the module and the setting of the spiral guide groove spiral spacing in coordination with the agitator, the device can be adapted to the treatment of wastewater with different components. It can be flexibly configured and adjusted according to the actual needs of wastewater treatment, bringing greater flexibility and economic benefits to the wastewater treatment system.

[0018] 2. This invention uses a lifting hydraulic cylinder to drive the bottom tank, modular tank, and top tank to rise and fall synchronously, vertically stirring the wastewater. During the rising and falling process, the agitator, under the action of the spiral guide groove, horizontally stirs the wastewater, ensuring that there are no dead zones inside the tank and effectively preventing the occurrence of tank sitting. Furthermore, the dosing components are installed on the bottom tank and modular tank, allowing for the uniform addition of chemicals at different heights.

[0019] 3. By setting up an elastic connector, the stirrer drives the quick-lock assembly to continuously provide locking force during lifting and lowering, which solves the problem of easy leakage in modular tank design and ensures that the connection between the modular tanks becomes tighter and tighter during operation, thereby improving the operational stability of the reaction tank. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 This is a cross-sectional view of the base and top cover of the present invention; Figure 4 This is a schematic diagram of the internal shaft structure of the module of the present invention; Figure 5 This is a schematic diagram of the bottom tank structure of the present invention; Figure 6 This is a schematic diagram of the top tank structure of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the modular tank of the present invention. Figure 1 ; Figure 8 This is a schematic diagram of the three-dimensional structure of the modular tank of the present invention. Figure 2 ; Figure 9 This is a schematic cross-sectional view of the modular tank structure of the present invention; Figure 10 This is a schematic diagram of the quick-lock component structure of the present invention; Figure 11 This is the present invention. Figure 10 Enlarged structural diagram of section A.

[0021] Reference numerals: 1. Base; 11. Bottom shaft; 12. Inlet pipe; 13. Drain pipe; 14. Lifting hydraulic cylinder; 2. Top cover; 21. Top shaft; 3. Inner shaft of module; 31. Spiral guide groove; 32. Threaded joint; 33. Threaded connection hole; 34. Threaded pin hole; 4. Bottom tank body; 41. Lifting skirt; 5. Module tank body; 51. Sliding frame; 52. Tension spring; 53. Sliding rod; 54. Swing rod; 55. Transmission sleeve; 6. Top tank body; 7. Locking clip; 71. Insert; 72. Locking groove; 8. Agitator; 9. Quick lock assembly; 91. Bracket; 92. Locking shaft; 93. Locking screw; 94. Locking nut; 95. Sliding sleeve; 96. Slide frame; 97. Transmission wheel; 98. One-way transmission block; 99. Transmission rack; 10. Dosing assembly. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0023] Example 1, as Figures 1-11As shown, a wastewater neutralization reaction tank with low flow rate is provided, including a base 1 and a top cover 2. The base 1 and the top cover 2 are connected together by several module inner shafts 3. A spiral guide groove 31 is provided on the outer side of the module inner shaft 3. A bottom tank 4, several module tanks 5 and a top tank 6 are arranged sequentially from bottom to top between the base 1 and the top cover 2. Four sets of sliding frames 51 are provided on the inner walls of the bottom tank 4 and the module tanks 5. Elastic connectors are slidably connected inside the sliding frames 51. A transmission sleeve 55 is provided between two sets of elastic connectors at the same height. The transmission sleeve 55 is sleeved on the outer side of the module inner shaft 3. A stirrer 8 is provided between two sets of transmission sleeves 55. The stirrer 8 is sleeved on the module inner shaft 3, and a transmission protrusion is provided on the inner wall of the stirrer 8. The transmission protrusion is inserted into the spiral guide groove 31. A dosing assembly 10 is provided on the outer side of both the bottom tank 4 and the module tanks 5. Both the bottom tank 4 and the module tank 5 are equipped with quick-lock components 9 on their outer sides, and both the top tank 6 and the bottom of the module tank 5 are equipped with locking clips 7. When the elastic connector slides, it can drive the quick-lock components 9 to lock onto the locking clips 7. A number of lifting hydraulic cylinders 14 are arranged in a ring around the outer side of the base 1, and a lifting skirt 41 is provided on the outer side of the bottom tank 4. The telescopic ends of the lifting hydraulic cylinders 14 are fixedly connected to the lifting skirt 41. An inlet pipe 12 and a drain pipe 13 are provided at the bottom of the base 1.

[0024] The bottom inner part of the base 1 and the top inner part of the top cover 2 are both arc-shaped. The outer sides of the base 1 and the top cover 2 are fitted with sliding seals. The base 1 is sealed and inserted into the bottom tank 4, and the top cover 2 is sealed and inserted into the top tank 6. The top of the bottom tank 4 and the module tank 5 are both provided with sealing grooves. The bottom of the top tank 6 and the module tank 5 are both provided with sealing rings, which can be sealed and inserted into the sealing grooves.

[0025] Assembly: First, assemble the inner shafts 3 of the modules together. Then, stack the bottom tank 4, several module tanks 5, and the top tank 6 sequentially from bottom to top. Finally, connect the top cover 2 to the inner shaft 3 of the modules. At this time, start the equipment. The lifting hydraulic cylinder 14 drives the bottom tank 4, module tanks 5, and top tank 6 to rise and fall synchronously relative to the top cover 2 and the base 1 through the lifting skirt 41. The base 1 and the bottom tank 4 slide in a sealed manner, and the top cover 2 and the top tank 6 slide in a sealed manner. During the lifting process, due to the resistance given by the spiral guide groove 31, the module tank 5 will drive the transmission sleeve 55 to rise and fall relative to the agitator 8 through the elastic connector. Under the restriction of the agitator 8, the elastic connector bends first. The elastic connector drives the quick lock assembly 9 to lock on the locking piece 7, realizing the automatic sealing and locking between the bottom tank 4, module tanks 5, and top tank 6, and realizing rapid assembly.

[0026] Reaction: Wastewater enters the reaction tank through the inlet pipe 12. During the injection process, the lifting hydraulic cylinder 14 is controlled to start the equipment. The lifting hydraulic cylinder 14 drives the bottom tank 4, modular tank 5, and top tank 6 to rise and fall synchronously relative to the top cover 2 and base 1 through the lifting skirt 41. The base 1 and bottom tank 4 slide in a sealed manner, and the top cover 2 and top tank 6 slide in a sealed manner. During the rising and falling process, due to the resistance given by the spiral guide groove 31, the modular tank 5 will first drive the transmission sleeve 55 to rise and fall relative to the agitator 8 through the elastic connector. Under the restraint of the agitator 8, the elastic connector bends first, and the elastic connector drives the quick-lock assembly 9 to continuously lock on the locking piece 7, which solves the problem of easy leakage in the modular tank design and ensures that the bottom tank is sealed during operation. 4. The increasingly tight connection between the modular tank 5 and the top tank 6 improves the operational stability of the reaction tank. When the elastic limiting force of the elastic connector is greater than the limiting force given to the agitator 8 by the spiral guide groove 31, the elastic connector drives the agitator 8 to move relative to the inner shaft 3 of the module through the transmission sleeve 55. Under the guidance of the spiral guide groove 31, the agitator 8 rotates. Therefore, when the bottom tank 4, the modular tank 5, and the top tank 6 are raised and lowered as a whole, the wastewater can be stirred vertically. The horizontal rotation of the agitator 8 can also stir the wastewater horizontally, ensuring that there is no dead zone inside the tank and effectively preventing the occurrence of tank sitting. Furthermore, the dosing component 10 is installed on the bottom tank 4 and the modular tank 5, allowing for uniform addition of chemicals at different heights. Once the wastewater reaches the designated liquid level, the liquid inlet is stopped, and the reacted wastewater is discharged through the drain pipe 13.

[0027] Example 2, based on the above examples, further includes: a bottom shaft rod 11 is provided at the bottom inner part of the base 1; a top shaft rod 21 is provided at the top inner part of the top cover 2; threaded joints 32 are provided at the top ends of the inner shaft 3 and the bottom shaft rod 11; threaded holes 33 are provided at the bottom ends of the inner shaft 3 and the top shaft rod 21; and threaded pin holes 34 are provided through the outer sides of the threaded joints 32 and the threaded holes 33.

[0028] By tightly threading the threaded connector 32 into the threaded hole 33, the connection of the inner shaft 3 of the module can be quickly completed. Then, the threaded pin is threaded into the threaded pin hole 34 to achieve an integrated connection of the inner shaft 3 of the module. With the configuration of this embodiment, when the device is disassembled, the bottom tank 4, the module tank 5, and the top tank 6 are raised as a whole, and the bottom tank 4 is detached from the base 1. Then, the threaded pin is removed from the bottom, and the inner shaft 3 of the module is removed, making disassembly convenient.

[0029] Example 3, based on the above examples, further includes that the spiral guide grooves 31 on the inner shafts 3 of adjacent modules have opposite spiral directions. With this design, when the bottom tank 4, the module tank 5 and the top tank 6 are raised and lowered synchronously, the rotational driving forces on the inner shafts 3 of adjacent modules are opposite, which can effectively prevent the inner shafts 3 of the modules from loosening, ensure the connection stability between the base 1 and the top cover 2, and at the same time, the alternating forward and reverse stirring can form a more complex flow pattern in the reaction tank, break the flow dead angle caused by stirring in one direction, and further prevent the occurrence of the tank sitting phenomenon.

[0030] Example 4, based on the above examples, further includes that the spiral guide grooves 31 on the inner shaft 3 of adjacent modules have different spiral spacings. By setting different spiral spacings, the rotation speed of the stirrer 8 is different, which can make the stirring intensity at different positions in the reaction tank different, and is suitable for different wastewater treatments.

[0031] Example 5, based on the above examples, further includes a quick-lock assembly 9 comprising a bracket 91 and a slide 96 fixedly installed on the outside of the module tank 5. A locking shaft 92 is rotatably installed inside the bracket 91. A locking screw 93 is provided at the top of the locking shaft 92. A locking nut 94 is threaded onto the locking screw 93. A sliding sleeve 95 is provided at the bottom of the locking nut 94. The sliding sleeve 95 is slidably connected in the slide 96. A one-way transmission wheel 97 is provided on the outside of the locking shaft 92. It also includes a transmission rack 99 slidably connected in the slide frame 51. The transmission rack 99 passes through the module tank 5 and meshes with the transmission wheel 97. The bottom of the locking piece 7 has an insertion port 71 and a locking groove 72. The locking nut 94 can pass through the insertion port 71, and the sliding sleeve 95 can slide into the locking groove 72. The outer diameter of the locking nut 94 is larger than the width of the locking groove 72.

[0032] The inner wall of the transmission wheel 97 is provided with a transmission slot, and the outer side of the locking shaft 92 is provided with a sliding hole. A one-way transmission block 98 is slidably connected inside the sliding hole. A top spring is provided between the one-way transmission block 98 and the inner wall of the sliding hole. The cross-sections of the one-way transmission block 98 and the transmission slot are both trapezoidal. When the transmission rack 99 slides to the outside of the module tank 5, the trapezoidal inclined surface of the one-way transmission block 98 is subjected to force.

[0033] During installation, first align the insertion port 71 with the locking nut 94. As the module tank 5 falls, the locking nut 94 enters the locking member 7 through the insertion port 71 and is positioned above the locking groove 72. Then, rotate the module tank 5, and the sliding sleeve 95 enters the locking groove 72. Start the equipment. When the elastic connector bends, the elastic connector drives the transmission rack 99 to slide into the module tank 5. The transmission rack 99 drives the locking shaft 92 to rotate through the transmission wheel 97 and the one-way transmission block 98. Due to the restriction of the sliding sleeve 95 and the slide 96, the locking nut 94 cannot rotate. Therefore, the locking shaft 92 drives the locking screw 93 to rotate relative to the locking nut 94. The locking screw 93 causes the locking nut 94 to rotate downward. The locking nut 94 applies downward pressure to the locking member 7, making the bottom tank 4, the module tank 5, and the top tank 6 tightly connected together. When the elastic connector is reset, the elastic connector drives the transmission rack 99 to slide to the outside of the module tank 5. At this time, the transmission rack 99 drives the transmission wheel 97 to rotate relative to the locking shaft 92, thus providing a continuous unidirectional locking force.

[0034] Example 6, based on the above examples, further includes an elastic connector made of a single piece of spring sheet, which is fixedly connected to the transmission rack 99. Using a single piece of spring sheet, the spring sheet is bent in the middle, and one end located in the slide frame 51 slides within the slide frame 51. When the bottom tank 4, the module tank 5, and the top tank 6 are locked together, the bending amount of the spring sheet decreases, allowing the stirrer 8 to move a longer distance relative to the inner shaft 3 of the module, resulting in better stirring. Using a single piece of spring sheet reduces complex component combinations and the number of parts, thereby simplifying the design and manufacturing process.

[0035] Example 7, based on the above examples, further includes an elastic connector consisting of a tension spring 52, a slide rod 53, and a rocker arm 54. The slide rod 53 is slidably connected in the slide frame 51. The slide rod 53 is connected to the transmission rack 99 through the tension spring 52. The transmission rack 99 has a T-shaped design. The end of the slide rod 53 away from the slide frame 51 is hinged to the rocker arm 54, and the other end of the rocker arm 54 is hinged to the transmission sleeve 55.

[0036] When the elastic connector bends, the rocker arm 54 swings to an incline, and the slide rod 53 slides outward along the slide frame 51. The slide rod 53 drives the transmission rack 99 to move via the tension spring 52. In this embodiment, the tension spring 52 is designed to be relatively short. Only when the tension spring 52 is fully stretched will it drive the transmission rack 99 to provide locking force. After locking, the tension spring 52 reduces the sliding distance of the slide rod 53, allowing the stirrer 8 to move a longer distance relative to the inner shaft 3 of the module, resulting in better stirring. The tension spring 52, the slide rod 53, and the rocker arm 54 each perform different functions, resulting in a smaller load on each component during operation, reducing the risk of fatigue damage, and improving the overall service life of the system.

[0037] Example 8, based on the above examples, further includes a dosing assembly 10 comprising a dosing pipe and a pH sensor. Dosing is performed through the dosing pipe, and the pH sensor provides feedback on the pH value of the wastewater in the reaction tank. It can also detect the pH value of the wastewater at different locations, resulting in better detection and more uniform dosing at different locations.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wastewater neutralization reaction tank with low-flow-rate sedimentation protection, comprising a base (1) and a top cover (2), characterized in that, The base (1) and the top cover (2) are connected together by several module inner shafts (3). The outer side of the module inner shaft (3) is provided with a spiral guide groove (31). The base (1) and the top cover (2) are arranged from bottom to top as follows: bottom tank (4), several module tanks (5) and top tank (6). The inner walls of the bottom tank (4) and the module tank (5) are provided with four sets of sliding frames (51). The sliding frames (51) are slidably connected with elastic connecting parts. The two sets of elastic connecting parts at the same height are provided with a transmission sleeve (55). The transmission sleeve (55) is sleeved on the outer side of the module inner shaft (3). The two sets of transmission sleeves (55) are provided with a stirrer (8). The stirrer (8) is sleeved on the module inner shaft (3). The inner wall of the stirrer (8) is provided with a transmission protrusion. The transmission protrusion is inserted into the spiral guide groove (31). The outer side of the bottom tank (4) and the module tank (5) are provided with a dosing assembly (10). The bottom tank (4) and the module tank (5) are both provided with quick-lock components (9) on their outer sides, and the top tank (6) and the bottom of the module tank (5) are both provided with locking clips (7). When the elastic connector slides, it can drive the quick-lock components (9) to lock onto the locking clips (7). The outer side of the base (1) is provided with a number of lifting hydraulic cylinders (14), the outer side of the bottom tank (4) is provided with a lifting skirt (41), the telescopic end of the lifting hydraulic cylinder (14) is fixedly connected to the lifting skirt (41), and the bottom of the base (1) is provided with a liquid inlet pipe (12) and a liquid outlet pipe (13).

2. The wastewater neutralization reaction tank for preventing low-flow-rate sedimentation as described in claim 1, characterized in that, The bottom of the base (1) is provided with a bottom shaft rod (11), the top of the top cover (2) is provided with a top shaft rod (21), the top of the inner shaft (3) of the module and the bottom shaft rod (11) are both provided with threaded joints (32), the bottom of the inner shaft (3) of the module and the top shaft rod (21) are both provided with threaded holes (33), and the outer sides of the threaded joints (32) and the threaded holes (33) are both provided with threaded pin holes (34).

3. A wastewater neutralization reaction tank for preventing low-flow-rate sedimentation as described in claim 2, characterized in that, The spiral directions of the spiral guide grooves (31) on the inner shaft (3) of the adjacent modules are opposite.

4. A wastewater neutralization reaction tank for preventing low-flow-rate sedimentation as described in claim 3, characterized in that, The helical spacing of the helical guide grooves (31) on the inner shaft (3) of the adjacent modules is different.

5. A wastewater neutralization reaction tank for preventing low-flow-rate sedimentation as described in claim 1, characterized in that, The quick-lock assembly (9) includes a bracket (91) and a slide (96) fixedly installed on the outside of the module tank (5). A locking shaft (92) is rotatably installed inside the bracket (91). A locking screw (93) is provided at the top of the locking shaft (92). A locking nut (94) is threaded onto the locking screw (93). A sliding sleeve (95) is provided at the bottom of the locking nut (94). The sliding sleeve (95) is slidably connected in the slide (96). A one-way transmission wheel (97) is provided on the outside of the locking shaft (92). It also includes a transmission rack (99) slidably connected in the slide frame (51). The transmission rack (99) passes through the module tank (5) and meshes with the transmission wheel (97). The bottom of the locking member (7) is provided with a socket (71) and a locking groove (72). The locking nut (94) can pass through the socket (71), and the sliding sleeve (95) can slide into the locking groove (72). The outer diameter of the locking nut (94) is greater than the width of the locking groove (72).

6. A wastewater neutralization reaction tank for preventing low-flow-rate sedimentation as described in claim 5, characterized in that, The inner wall of the transmission wheel (97) is provided with a transmission slot, and the outer side of the lock shaft (92) is provided with a sliding hole. A one-way transmission block (98) is slidably connected inside the sliding hole. A top spring is provided between the one-way transmission block (98) and the inner wall of the sliding hole. The cross-sections of the one-way transmission block (98) and the transmission slot are both trapezoidal. When the transmission rack (99) slides to the outside of the module tank (5), the trapezoidal inclined surface of the one-way transmission block (98) is subjected to force.

7. A wastewater neutralization reaction tank for preventing low-flow-rate sedimentation as described in claim 6, characterized in that, The elastic connector is made of a single piece of spring sheet, which is fixedly connected to the transmission gear (99).

8. A wastewater neutralization reaction tank for preventing low-flow-rate sedimentation as described in claim 6, characterized in that, The elastic connector consists of a tension spring (52), a slide rod (53) and a rocker arm (54). The slide rod (53) is slidably connected in the slide frame (51). The slide rod (53) is connected to the transmission rack (99) through the tension spring (52). The transmission rack (99) is T-shaped. The end of the slide rod (53) away from the slide frame (51) is hinged to the rocker arm (54). The other end of the rocker arm (54) is hinged to the transmission sleeve (55).

9. A wastewater neutralization reaction tank for preventing low-flow-rate sedimentation as described in claim 1, characterized in that, The dosing assembly (10) includes a dosing tube and a pH sensor.

10. A wastewater neutralization reaction tank for preventing low-flow-rate sedimentation according to any one of claims 1-9, characterized in that, The bottom of the base (1) and the top of the top cover (2) are both arc-shaped. The outer sides of the base (1) and the top cover (2) are fitted with sliding seals. The base (1) is sealed and inserted into the bottom tank (4), and the top cover (2) is sealed and inserted into the top tank (6). The top of the bottom tank (4) and the module tank (5) are both provided with sealing grooves. The bottom of the top tank (6) and the module tank (5) are both provided with sealing rings. The sealing rings can be sealed and inserted into the sealing grooves.

Images