Unpowered stirring anaerobic reactor
By adopting a bottom cover and screw structure design in the anaerobic reactor, the problem of cumbersome sludge cleaning in existing anaerobic reactors is solved, and efficient operation of sludge cleaning without power is achieved.
Patent Information
- Application Number
- CN202520216606.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-12
AI Technical Summary
The existing anaerobic reactors have cumbersome sludge cleaning procedures that require manual entry into the reactor, which reduces work efficiency.
A non-powered stirred anaerobic reactor is designed, which adopts a bottom cover and screw structure. The sludge-separating ring is fixed by the bearing ring on the screw. The sludge can be cleaned by simply removing the bottom cover, which simplifies the cleaning process.
This technology enables sludge removal without requiring personnel to enter the reactor, simplifying the cleaning process and improving work efficiency.
Smart Images

Figure CN223646388U_ABST
Abstract
Description
Technical Field
[0001] This patent relates to the field of anaerobic reactor technology, specifically a non-powered stirred anaerobic reactor. Background Technology
[0002] With the emergence of the concept of green development, accelerating the construction of ecological civilization, actively improving the quality of the ecological environment, and speeding up the comprehensive improvement of the rural environment have become urgent tasks. Based on this, various regions across the country have actively carried out integrated rural environmental improvement campaigns. Among these efforts, due to the low local levels of rural domestic sewage, limited investment, and the difficulty of subsequent maintenance and management, domestic sewage treatment generally adopts a "non-powered anaerobic reactor + constructed wetland + stabilization pond" process. The anaerobic treatment stage of this process has played a significant role.
[0003] Existing anaerobic reactors are equipped with sludge-separating rings to collect sludge produced by the reaction of wastewater and anaerobic bacteria. When cleaning the sludge, the top of the reactor needs to be opened, the sludge-separating rings need to be removed for cleaning, and manual entry into the reactor is required to clean the sludge at the bottom. The cleaning process is cumbersome and reduces efficiency. Therefore, we propose a non-powered stirred anaerobic reactor. Utility Model Content
[0004] The purpose of this patent is to provide a non-powered stirred anaerobic reactor to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this patent provides the following technical solution: a non-powered stirred anaerobic reactor, comprising a shell, a bottom cover, and a mud-separating ring. A vacuum tube is embedded in the left side wall of the shell, a fixing plate is fixedly installed on the upper side of the inner side wall of the shell, a siphon pulse box is installed on the top of the fixing plate, an inlet pipe is connected to the water inlet of the siphon pulse box, an outlet pipe is connected to the water outlet at the bottom of the siphon pulse box, a vortex distributor is fixedly connected to the bottom end of the outlet pipe, and the top edge of the bottom cover is integrally formed. The cover has a raised ring, and a sealing ring is fixedly installed on the top of the raised ring. The top left and right sides of the bottom cover have through holes, and a screw is installed in the through hole. The bottom end of the screw passes through the through hole and a pressure plate is fixedly installed. The top of the pressure plate has a first rubber ring. The top end of the screw passes through the mud-separating ring and is screwed to the bottom of the fixed plate. The top of the first rubber ring is tightly fitted to the bottom of the bottom cover. A bearing ring is fixedly installed on the side wall of the screw. The top of the bearing ring is fitted to the bottom of the mud-separating ring. The mud-separating ring is located inside the housing.
[0006] Preferably, the pressure plate includes a circular plate and a circular ring. The circular ring is located at the top of the circular plate. A column is integrally formed in the middle of the top of the circular plate. The top of the column is fixed to the bottom of the screw. Limiting rods are fixedly installed at both the left and right ends of the circular ring. A limiting groove is provided at the bottom of the bottom cover. The side wall of the limiting rod slides against the inner side wall of the limiting groove.
[0007] Preferably, the inner wall of the ring is provided with a ring groove, and a rotating ring is integrally formed on the side wall of the column, the rotating ring being rotatably installed in the ring groove.
[0008] Preferably, the ring comprises a first half-ring and a second half-ring, with the two ends of the first half-ring and the second half-ring facing each other.
[0009] Preferably, both ends of the outer sidewalls of the first and second semi-rings are provided with welding grooves, and the sidewalls of the limiting rod are provided with welding holes.
[0010] Preferably, a second rubber ring is installed on the inner wall of the through hole.
[0011] Compared with the prior art, the beneficial effects of this patent are as follows: This patent has a bottom cover at the bottom of the shell, which is fixed by a pressure plate and a screw. The bearing ring installed on the screw can support and fix the mud-separating ring. When cleaning sludge, only the bottom cover needs to be removed to clean the sludge on the bottom cover and the mud-separating ring. The cleaning is convenient and does not require personnel to enter the shell for cleaning. The cleaning steps are simple and improve work efficiency. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall patent.
[0013] Figure 2 This is a partial structural diagram of this patent.
[0014] Figure 3 This is a three-dimensional view of the annulus in this patent.
[0015] In the diagram: 1. Shell, 2. Vacuum tube, 3. Fixing plate, 4. Siphon pulse box, 5. Inlet pipe, 6. Outlet pipe, 7. Swirl distributor, 8. Bottom cover, 9. Sealing ring, 10. Through hole, 11. Pressure plate, 12. First rubber ring, 13. Screw, 14. Bearing ring, 15. Mud-separating ring, 16. Circular plate, 17. Column, 18. Circular ring, 19. Limiting groove, 20. Limiting rod, 21. Circular groove, 22. Rotary ring, 23. First half ring, 24. Second half ring, 25. Welding groove, 26. Second rubber ring. Detailed Implementation
[0016] The technical solutions of this patent embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this patent, and not all of them. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.
[0017] Please see Figure 1 , Figure 2 and Figure 3 This patent provides a technical solution: a non-powered stirred anaerobic reactor, including a shell 1, a bottom cover 8, and a mud-separating ring 15. A vacuum tube 2 is embedded in the left side wall of the shell 1. A fixing plate 3 is fixedly installed on the upper side of the inner side wall of the shell 1. A siphon pulse box 4 is installed on the top of the fixing plate 3. A water inlet pipe 5 is connected to the water inlet position of the siphon pulse box 4. A water outlet pipe 6 is connected to the water outlet position at the bottom of the siphon pulse box 4. A vortex distributor 7 is fixedly connected to the bottom end of the water outlet pipe 6. A raised ring is integrally formed at the top edge of the bottom cover 8. The top of the raised ring is fixed. A sealing ring 9 is installed. The top left and right sides of the bottom cover 8 are provided with through holes 10. A screw 13 is installed in the through hole 10. The bottom end of the screw 13 passes through the through hole 10 and is fixedly installed with a pressure plate 11. The top of the pressure plate 11 is provided with a first rubber ring 12. The top end of the screw 13 passes through the mud-separating ring 15 and is screwed to the bottom of the fixing plate 3. The top of the first rubber ring 12 is tightly fitted to the bottom of the bottom cover 8. A bearing ring 14 is fixedly installed on the side wall of the screw 13. The top of the bearing ring 14 is fitted to the bottom of the mud-separating ring 15. The mud-separating ring 15 is located inside the housing 1.
[0018] The protruding ring on the top of the bottom cover 8 prevents the mud on the bottom cover 8 from falling directly after it is removed.
[0019] The side wall of the housing 1 is also equipped with support legs (not shown in the figure). The height of the support legs can meet the height range of the bottom cover 8 to be disassembled downwards. A lifting machine should also be installed at the bottom of the bottom cover 8 to drive the bottom cover 8 to move up and down (the bottom cover 8 is heavy and requires mechanical equipment such as a lifting machine).
[0020] Specifically, the pressure plate 11 includes a circular plate 16 and a circular ring 18. The circular ring 18 is located on the top of the circular plate 16. A column 17 is integrally formed in the middle of the top of the circular plate 16. The top of the column 17 is fixed to the bottom of the screw 13. Limiting rods 20 are fixedly installed on both the left and right ends of the circular ring 18. A limiting groove 19 is provided at the bottom of the bottom cover 8. The side wall of the limiting rod 20 slides against the inner side wall of the limiting groove 19.
[0021] If the pressure plate 11 is a single plate, then after rotating the pressure plate 11 to tighten the screw 13, the rotation of the pressure plate 11 will cause wear to the first rubber ring 12.
[0022] The side wall of the limiting rod 20 slides against the inner side wall of the limiting groove 19 to limit the movement trajectory of the ring 18, so that it can only move up and down, thus avoiding wear on the first rubber ring 12.
[0023] The circular plate 16 can be hexagonal, and workers can rotate the circular plate 16 using tools such as wrenches.
[0024] Specifically, the inner wall of the ring 18 is provided with a ring groove 21, and the side wall of the column 17 is integrally formed with a rotating ring 22, which is rotatably installed in the ring groove 21.
[0025] The rotating ring 22 can only rotate within the annular groove 21 and cannot move in other directions within the annular groove 21. It is used to make the column 17 and the ring 18 rotate relative to each other. When the circular plate 17 and the column 17 move up and down, the rotating ring 22 can simultaneously drive the ring 18 to move up and down, thereby increasing the integrated effect of the circular plate 17 and the ring 18.
[0026] Specifically, the ring 18 includes a first half-ring 23 and a second half-ring 24, with the two ends of the first half-ring 23 and the second half-ring 24 facing each other.
[0027] By dividing the ring 18 into a first half-ring 23 and a second half-ring 24, the annular groove 21 inside the ring 18 can be divided into two parts, making it easier to fit the annular groove 21 onto the outside of the rotating ring 22 in the early stage.
[0028] Specifically, welding grooves 25 are provided at both ends of the outer side walls of the first half-ring 23 and the second half-ring 24, and welding holes are provided on the side wall of the limiting rod 20.
[0029] The welding groove 25 can be welded together with the welding hole on the limiting rod 20 by welding, which facilitates the early assembly of the first half ring 23, the second half ring 24 and the limiting rod 20.
[0030] Specifically, a second rubber ring 26 is installed on the inner wall of the through hole 10.
[0031] By setting a second rubber ring 26, sludge inside the housing 1 can be prevented from entering the through hole 10 and affecting the rotation of the screw 13.
[0032] Working principle: Wastewater enters the siphon pulse box 4 through the inlet pipe 5. The sewage flows into the siphon pulse box 4 by gravity. Through the intermittent pulse siphon, the water flow generates a strong impact force. Through the vortex distributor 7, the sewage is rotated and circulated, so that the anaerobic bacteria are always in a suspended state, thus maintaining a high efficiency of anaerobic treatment. The sludge produced by the agitation reaction of the wastewater can fall onto the sludge isolation ring 15.
[0033] When cleaning sludge, simply rotate the pressure plate 11 to disengage the screw 13 from the threaded groove at the bottom of the fixing plate 3, and then remove the bottom cover 8 downwards to clean the sludge on the bottom cover 8 and the sludge on the mud-separating ring 15. The cleaning is convenient and does not require personnel to enter the housing for cleaning. The cleaning steps are simple and improve work efficiency.
[0034] It should be noted that the device structure and accompanying drawings of this patent mainly describe the principle of this patent. In terms of the technical aspects of this design principle, the setting of the device's power mechanism, power supply system and control system is not fully described. However, those skilled in the art who understand the principle of the above patent can clearly understand the specifics of its power mechanism, power supply system and control system.
[0035] In the description of this patent, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. At the same time, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction relationship between two elements. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.
[0036] Although embodiments of this patent have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this patent, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A non-powered stirred anaerobic reactor, characterized in that: The device includes a shell (1), a bottom cover (8), and a mud-separating ring (15). A vacuum tube (2) is embedded in the left side wall of the shell (1). A fixing plate (3) is fixedly installed on the upper side of the inner side wall of the shell (1). A siphon pulse box (4) is installed on the top of the fixing plate (3). A water inlet pipe (5) is connected to the water inlet position of the siphon pulse box (4). A water outlet pipe (6) is connected to the water outlet position at the bottom of the siphon pulse box (4). A vortex distributor (7) is fixedly connected to the bottom end of the water outlet pipe (6). A convex ring is integrally formed at the top edge of the bottom cover (8). A sealing ring (9) is fixedly installed on the top of the convex ring. The top of the bottom cover (8) has a convex ring. Both sides of the part are provided with through holes (10), and a screw (13) is provided in the through hole (10). The bottom end of the screw (13) passes through the through hole (10) and is fixedly installed with a pressure plate (11). The top of the pressure plate (11) is provided with a first rubber ring (12). The top end of the screw (13) passes through the mud-separating ring (15) and is screwed to the bottom of the fixing plate (3). The top of the first rubber ring (12) is tightly attached to the bottom of the bottom cover (8). A bearing ring (14) is fixedly installed on the side wall of the screw (13). The top of the bearing ring (14) is attached to the bottom of the mud-separating ring (15). The mud-separating ring (15) is located inside the shell (1).
2. The non-powered stirred anaerobic reactor according to claim 1, characterized in that: The pressure plate (11) includes a circular plate (16) and a ring (18). The ring (18) is located on the top of the circular plate (16). A column (17) is integrally formed in the middle of the top of the circular plate (16). The top of the column (17) is fixed to the bottom of the screw (13). Limiting rods (20) are fixedly installed on both the left and right ends of the ring (18). The bottom of the bottom cover (8) is provided with a limiting groove (19). The side wall of the limiting rod (20) slides against the inner side wall of the limiting groove (19).
3. The non-powered stirred anaerobic reactor according to claim 2, characterized in that: The inner sidewall of the ring (18) is provided with a ring groove (21), and a rotating ring (22) is integrally formed on the sidewall of the column (17). The rotating ring (22) is rotatably installed in the ring groove (21).
4. The non-powered stirred anaerobic reactor according to claim 2, characterized in that: The ring (18) includes a first half-ring (23) and a second half-ring (24), with the two ends of the first half-ring (23) and the second half-ring (24) meeting each other.
5. The non-powered stirred anaerobic reactor according to claim 4, characterized in that: Welding grooves (25) are provided at both ends of the outer sidewalls of the first half-ring (23) and the second half-ring (24), and welding holes are provided on the sidewalls of the limiting rod (20).
6. The non-powered stirred anaerobic reactor according to claim 1, characterized in that: A second rubber ring (26) is installed on the inner wall of the through hole (10).