Anaerobic biochemical tank for sewage treatment

Abstract

The application belongs to the technical field of sewage treatment, and particularly relates to an anaerobic biochemical tank for sewage treatment, which comprises a tank body, a controller fixedly connected to the front side wall of the tank body, a water inlet pipe fixedly communicated with the right side wall of the tank body, a plurality of water distribution plates fixedly communicated with the lower side wall of the water inlet pipe, a water outlet pipe fixedly communicated with the left side wall of the tank body, a mounting cover fixedly connected to the upper end of the tank body, and a lifting plate connected to the upper side wall of the mounting cover through a driving assembly. During the operation of the anaerobic tank, the filler and the biofilm can be regularly lifted, the relative movement between the biofilm and the wastewater is enhanced, the boundary layer resistance of the substrate on the surface of the biofilm is broken, the diffusion of the organic matter from the liquid phase to the inner layer of the biofilm is accelerated, the thickness of the biofilm can be detected, the thicker biofilm can be flushed, and the working performance of the biofilm is ensured.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment anaerobic biochemical tank. BACKGROUND

[0002] At present, many domestic units apply biochemical processes to treat industrial wastewater containing phenol, cyanide, oil refining, chemical industry, petroleum chemical industry and the like. Fixed filamentous fillers are installed in the anaerobic biochemical system as a carrier of anaerobic bacteria, and the organic matter in the sewage is broken, opened and degraded by the attached anaerobic bacteria on the carrier. For example, a sewage treatment anaerobic biochemical tank is provided in patent No. CN113548730A.

[0003] The biofilm is a microbial community attached to the surface of the fillers in the anaerobic tank, and its thickness is affected by multiple factors such as microbial growth rate, substrate concentration and hydraulic conditions. When the organic matter concentration in the anaerobic tank is too high, the water flow scouring force is insufficient, the nutrient elements are unbalanced and the like, the biofilm is prone to excessive thickening. The excessively thick biofilm may cover the filler pores, and even form a "balling" or "bridging" phenomenon, which hinders the water flow, causes uneven water distribution and local water flow short circuit. At the same time, the outer layer of microorganisms preferentially consumes the substrate, which may cause the inner layer of microorganisms to gradually die or enter a dormant state due to lack of substrate, thereby reducing the overall metabolic efficiency. In addition, in order to maintain the normal operation of the system, the fillers need to be cleaned frequently, which further increases the operation and maintenance workload and cost of the anaerobic tank.

[0004] Therefore, the sewage treatment anaerobic biochemical tank is provided to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a sewage treatment anaerobic biochemical tank to solve the above problems.

[0006] To achieve the above purpose, the following technical scheme is adopted: a sewage treatment anaerobic biochemical tank, comprising a tank body, a controller is fixedly connected to the front side wall of the tank body, a water inlet pipe is fixedly communicated to the right side wall of the tank body, a plurality of water distribution plates are fixedly communicated to the lower side wall of the water inlet pipe, a water outlet pipe is fixedly communicated to the left side wall of the tank body, a mounting cover is fixedly connected to the upper end of the tank body, a lifting plate is connected to the upper side wall of the mounting cover through a driving assembly, a lifting frame is fixedly connected to the lower side wall of the lifting plate on the left and right sides, a plurality of second tension sensors are fixedly connected to the lower side wall of the lifting frame, a detection end of each of the plurality of second tension sensors is connected to a pull rope, and a plurality of filler supports are connected to the surface of the pull rope.

[0007] A flushing assembly is arranged on the inner wall of the mounting cover, and the flushing assembly is communicated with an external pump mechanism to clean the thickened biofilm.

[0008] Two limiting assemblies are fixedly connected to the left and right sides of the lower side wall of the lifting frame, and are used for fixing the position of the lifting frame.

[0009] A prompt assembly is connected to the front side wall of the mounting cover, and is used for blocking the display of the distribution disc position.

[0010] Preferably, the driving assembly comprises two vertical plates fixedly connected to the upper side wall of the mounting cover, a servo motor fixedly connected to the right side wall of the right vertical plate, a same rope cylinder rotationally connected between the two vertical plates, the output end of the servo motor and the right end of the rope cylinder being fixedly connected, a pull rope wound around the outer wall of the rope cylinder, a connecting cylinder fixedly communicated with the upper side wall of the mounting cover, the lower end of the pull rope penetrating through the connecting cylinder and being fixedly connected with a cylinder, the outer wall of the cylinder being rotationally connected with a driving ring through a bearing, the side wall of the cylinder being fixedly connected with an angle motor through a support, and the angle motor being in transmission connection with the driving ring through a gear ring transmission mechanism.

[0011] Preferably, the upper side wall of the cylinder is fixedly connected with two positioning pins, and the lower inner wall of the mounting cover is fixedly connected with two positioning cylinders matched with the positioning pins.

[0012] Preferably, the flushing assembly comprises a square frame fixedly connected to the inner wall of the mounting cover, a plurality of horizontal pipes fixedly connected to the inner wall of the square frame, a same communication pipe fixedly communicated between any two adjacent horizontal pipes, a conveying pipe fixedly communicated with the side wall of the horizontal pipe located at the rightmost side, the conveying pipe being in communication with an external pump mechanism, a plurality of support pipes fixedly communicated with the side wall of the horizontal pipe, a proportional valve arranged in the support pipe, the second tension sensor being electrically connected with the corresponding proportional valve through a controller, a ring cylinder fixedly communicated with one end of the support pipe away from the horizontal pipe, a flushing port arranged in the inner wall of the ring cylinder, and the lower end of the pull rope penetrating through the ring cylinder.

[0013] Preferably, the limiting assembly comprises a limiting pin fixedly connected to the lower side wall of the lifting frame, a limiting cylinder fixedly connected to the upper side wall of the square frame and matched with the limiting pin, a horizontal cylinder fixedly communicated with the side wall of the limiting cylinder, a same vertical pipe fixedly communicated between the horizontal cylinder and the support pipe, a control valve arranged in the vertical pipe, a water pressure sensor arranged in the vertical pipe, a piston block fixedly connected to the inner wall of the horizontal cylinder through a spring, a catch pin fixedly connected to the side wall of the piston block, and a catch groove arranged in the side wall of the limiting pin and matched with the catch pin.

[0014] Preferably, the prompting assembly comprises a prompting disc fixedly connected to the front side wall of the mounting cover, the prompting disc is in a serpentine structure and has the same shape as the water inlet pipe, a plurality of lamp beads are connected to the surface of the prompting disc, the upper side wall of the lifting plate is fixedly connected with electric push rods on the left and right sides, the moving end of the electric push rod is fixedly connected with a moving cover, the inner walls of the left and right sides of the mounting cover are fixedly connected with fixed seats matched with the moving cover, the inner wall of the moving cover is fixedly connected with a plurality of conductive blocks, the conductive blocks are electrically connected with corresponding second tension sensors, and the side wall of the fixed seat is fixedly connected with a plurality of conductive seats.

[0015] Preferably, the inner wall of the connecting barrel is fixedly connected with an air bag, the upper side wall of the mounting cover is fixedly connected with a blower, the air outlet end of the blower is communicated with the air bag, and the air outlet end of the blower is provided with a magnetic control valve.

[0016] Preferably, the lower end of the pull rope is fixedly connected with a counterweight, and the counterweight is made of stainless steel.

[0017] Compared with the prior art, the sewage treatment anaerobic biochemical tank has the advantages that:

[0018] 1. By means of the driving assembly and the flushing assembly, the filler and the biofilm can be lifted regularly during the operation of the anaerobic tank, the relative movement between the biofilm and the wastewater is enhanced, the boundary layer resistance of the substrate on the surface of the biofilm is broken, the diffusion of organic matter from the liquid phase to the inner layer of the biofilm is accelerated, the thickness of the biofilm can be detected, the thicker biofilm can be flushed, and the working performance of the biofilm is ensured.

[0019] 2. When the biofilm in the anaerobic tank is unevenly distributed due to uneven water distribution or stirring, the microorganisms in different areas of the filler have a large difference in the concentration of organic matter, part of the filler has too thick biofilm, and the other part of the filler has sparse biofilm or no biofilm, the driving assembly can exchange the positions of the fillers on the two sides, the filler can be evenly coated with biofilm, and the operator can be reminded in time to improve the water distribution and stirring process.

[0020] 3. When a certain water distribution plate is blocked and causes uneven water distribution, the water flow bypasses part of the filler area, the filler in the area lacks substrate contact and has sparse biofilm, the prompting assembly can timely remind and help the operator quickly locate the blocked water distribution plate for cleaning, and the operation convenience is significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of the sewage treatment anaerobic biochemical tank provided by the application;

[0022] Figure 2It is the internal structure schematic view of the installation cover in the sewage treatment anaerobic biochemical tank provided by the application;

[0023] Figure 3 It is the structure schematic view of the driving assembly in the sewage treatment anaerobic biochemical tank provided by the application;

[0024] Figure 4 It is the position relation schematic view of the cylinder and the driving ring in the sewage treatment anaerobic biochemical tank provided by the application;

[0025] Figure 5 It is the position relation schematic view of the conductive block and the conductive seat in the sewage treatment anaerobic biochemical tank provided by the application;

[0026] Figure 6 It is the structure schematic view of the limiting assembly in the sewage treatment anaerobic biochemical tank provided by the application;

[0027] Figure 7 It is the structure schematic view of the flushing assembly in the sewage treatment anaerobic biochemical tank provided by the application;

[0028] Figure 8 It is the position relation schematic view of the multiple ring cylinders in the sewage treatment anaerobic biochemical tank provided by the application.

[0029] In the figure: 1 tank body, 2 controller, 3 water inlet pipe, 4 water distribution disc, 5 water outlet pipe, 6 installation cover, 7 lifting plate, 8 first tension sensor, 9 lifting frame, 10 second tension sensor, 11 pull rope, 12 filler support, 13 driving assembly, 131 vertical plate, 132 servo motor, 14 rope cylinder, 15 pull cable, 16 connecting cylinder, 17 cylinder, 18 driving ring, 19 angle motor, 20 positioning pin, 21 positioning cylinder, 22 flushing assembly, 221 square frame, 222 cross pipe, 23 communication pipe, 24 conveying pipe, 25 supporting pipe, 26 proportional valve, 27 ring cylinder, 28 flushing port, 29 limiting assembly, 291 limiting pin, 292 limiting cylinder, 30 cross cylinder, 31 vertical pipe, 32 control valve, 33 water pressure sensor, 34 piston block, 35 catch pin, 36 prompt assembly, 361 prompt disc, 362 lamp bead, 37 electric push rod, 38 moving cover, 39 fixed seat, 40 conductive block, 41 conductive seat, 42 air bag, 43 air blower, 44 magnetic control valve, 45 counterweight. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application.

[0031] As Figures 1-8As shown, a sewage treatment anaerobic biochemical tank, including the tank body 1, the front side wall of the tank body 1 is fixedly connected with the controller 2, the right side wall of the tank body 1 is fixedly connected with the water inlet pipe 3, the lower side wall of the water inlet pipe 3 is fixedly connected with a plurality of water distribution plates 4, the left side wall of the tank body 1 is fixedly connected with the water outlet pipe 5, the upper end of the tank body 1 is fixedly connected with the mounting cover 6, the upper side wall of the mounting cover 6 is connected with the lifting plate 7 through the driving assembly 13, the lower side wall of the lifting plate 7 is fixedly connected with the same lifting frame 9 on the left and right sides, the lower side wall of the lifting frame 9 is fixedly connected with a plurality of second tension sensors 10, the detection end of the plurality of second tension sensors 10 is connected with the pull rope 11, the surface of the pull rope 11 is connected with a plurality of filler supports 12, the lower end of the pull rope 11 is fixedly connected with the counterweight 45, the counterweight 45 is made of stainless steel, the driving assembly 13 includes two vertical plates 131 fixedly connected to the upper side wall of the mounting cover 6, the right side wall of the right vertical plate 131 is fixedly connected with the servo motor 132, the same rope drum 14 is rotatably connected between the two vertical plates 131, the output end of the servo motor 132 and the right end of the rope drum 14 are fixedly connected, the outer wall of the rope drum 14 is wound with the pull cable 15, the upper side wall of the mounting cover 6 is fixedly connected with the connecting cylinder 16, the lower end of the pull cable 15 passes through the connecting cylinder 16 and is fixedly connected with the cylinder 17, the upper side wall of the cylinder 17 is fixedly connected with two positioning pins 20, the lower inner wall of the mounting cover 6 is fixedly connected with two positioning cylinders 21 matched with the positioning pins 20, the outer wall of the cylinder 17 is rotatably connected with the driving ring 18 through the bearing, the side wall of the cylinder 17 is fixedly connected with the angle motor 19 through the support, the angle motor 19 is drivingly connected with the driving ring 18 through the gear ring transmission mechanism, and can drive a plurality of pull ropes 11 and filler supports 12 to move, and further comprises:

[0032] The flushing assembly 22 is arranged on the inner wall of the mounting cover 6, the flushing assembly 22 is communicated with the external pump mechanism, and is used for cleaning the thick biofilm, the flushing assembly 22 includes a square frame 221 fixedly connected to the inner wall of the mounting cover 6, a plurality of horizontal pipes 222 are fixedly connected to the inner wall of the square frame 221, the same connecting pipe 23 is fixedly connected between the adjacent two horizontal pipes 222, the side wall of the rightmost horizontal pipe 222 is fixedly connected with the conveying pipe 24, the conveying pipe 24 is communicated with the external pump mechanism, the side wall of the horizontal pipe 222 is fixedly connected with a plurality of support pipes 25, the support pipe 25 is provided with a proportional valve 26, the second tension sensor 10 is electrically connected with the corresponding proportional valve 26 through the controller 2, one end of the support pipe 25 away from the horizontal pipe 222 is fixedly connected with the ring cylinder 27, the inner wall of the ring cylinder 27 is provided with the flushing port 28, the lower end of the pull rope 11 passes through the ring cylinder 27, and the thick biofilm can be washed and treated;

[0033] Two limiting assemblies 29 are fixedly connected to the left and right sides of the lower side wall of the lifting frame 9, and are used for fixing the position of the lifting frame 9. The limiting assembly 29 comprises a limiting pin 291 fixedly connected to the lower side wall of the lifting frame 9. The upper side wall of the square frame 221 is fixedly connected with a limiting cylinder 292 matched with the limiting pin 291. The side wall of the limiting cylinder 292 is fixedly connected with a horizontal cylinder 30. The horizontal cylinder 30 and the supporting pipe 25 are fixedly connected with the same vertical pipe 31. The vertical pipe 31 is provided with a control valve 32 and a water pressure sensor 33. The inner wall of the horizontal cylinder 30 is fixedly connected with a piston block 34 through a spring. The side wall of the piston block 34 is fixedly connected with a clamping pin 35. The side wall of the limiting pin 291 is provided with a clamping groove matched with the clamping pin 35.

[0034] The prompt assembly 36 is connected to the front side wall of the mounting cover 6, and is used for displaying the position of the distribution disc 4. The prompt assembly 36 comprises a prompt disc 361 fixedly connected to the front side wall of the mounting cover 6. The shape of the prompt disc 361 is the same as that of the water inlet pipe 3, and both are serpentine structures. The surface of the prompt disc 361 is connected with a plurality of lamp beads 362. The upper side wall of the lifting plate 7 is fixedly connected with an electric push rod 37 on the left and right sides. The moving end of the electric push rod 37 is fixedly connected with a moving cover 38. The left and right inner walls of the mounting cover 6 are fixedly connected with a fixed seat 39 matched with the moving cover 38. The inner wall of the moving cover 38 is fixedly connected with a plurality of conductive blocks 40. The conductive blocks 40 are electrically connected with the corresponding second tension sensor 10. The side wall of the fixed seat 39 is fixedly connected with a plurality of conductive seats 41. The conductive seats 41 are electrically connected with the corresponding lamp beads 362.

[0035] The inner wall of the connecting cylinder 16 is fixedly connected with an air bag 42. The upper side wall of the mounting cover 6 is fixedly connected with a blower 43. The air outlet end of the blower 43 is communicated with the air bag 42. The air outlet end of the blower 43 is provided with a magnetic control valve 44, which can avoid the gas in the pool body 1 from being discharged from the connecting cylinder 16.

[0036] The operation principle of the present application is described as follows: during the operation of the anaerobic tank, the controller 2 intermittently controls the opening of the control valves 32 on both sides, the piston block 34 drives the pin 35 to move to the right to disengage from the limiting pin 291 under the action of the spring tension, and extrudes the liquid in the horizontal cylinder 30, so that the liquid is transported to the horizontal pipe 222 through the vertical pipe 31 and the communication pipe 23. At the same time, the controller 2 also controls the opening of the plurality of proportional valves 26, and the water in the horizontal pipe 222 is transported to the ring cylinder 27 through the support pipe 25 and flows out through the flushing port 28 on the surface of the ring cylinder 27. The subsequent controller 2 controls the operation of the external pump mechanism and the opening of the two control valves 32, and the external pump mechanism transports the reclaimed water to the communication pipe 23 through the delivery pipe 24. Since the plurality of proportional valves 26 are in a closed state at this time, the reclaimed water is transported to the piston block on one side of the piston seat through the vertical pipe 31, so that the piston block drives the pin 35 to move and insert into the clamping groove on the surface of the limiting pin 291, thereby fixing the limiting pin 291 in the limiting cylinder 292. Moreover, the controller 2 controls the opening of the magnetic control valve 44, so that the gas in the air bag 42 is discharged to the outside through the air blower 43 (in the non-working state of the air blower 43, the gas can enter freely). The subsequent controller 2 can control the air blower 43 to work for a set time, so that the external gas is transported into the air bag 42, the air bag 42 is inflated and expanded, the air bag 42 extrudes the cable 15, thereby sealing the connecting cylinder 16. At the same time, the controller 2 also controls the operation of the electric push rod 37 on both sides, the electric push rod 37 drives the moving cover 38 and the fixed seat 39 to separate, and then the controller 2 controls the operation of the servo motor 132, the servo motor 132 drives the rope cylinder 14 to rotate, the rope cylinder 14 winds the cable 15, and the lower end of the cable 15 drives the cylinder 17, the driving ring 18, the lifting plate 7, the lifting frame 9 and the plurality of cables 11 to move upward to a set height, the cable 11 drives the filler support 12 to disengage from the sewage, so that the relative movement between the biofilm on the surface of the filler support 12 and the wastewater is enhanced, the boundary layer resistance of the substrate on the biofilm surface is broken, and the diffusion of organic matter from the liquid phase to the inner layer of the biofilm is accelerated.

[0037] And after the filler support 12 is separated from the sewage, the controller 2 detects the weight of the plurality of pull ropes 11 and the filler support 12 through the plurality of second tension sensors 10 respectively, when the weight of the corresponding position pull rope 11 and the filler support 12 detected by the second tension sensor 10 exceeds the set threshold value (30 grams), and the two first tension sensors 8 detect that the gravity on both sides of the lifting frame 9 is small (less than 100 grams), the controller 2 will control the servo motor 132 to work in reverse, and control the external pump mechanism to deliver the purified water to the conveying pipe 24, and use the conveying pipe 24 to deliver the water to the plurality of horizontal pipes 222, at the same time, the controller 2 will also control the two control valves 32 to close, and according to the tension size fed back by the second tension sensor 10, control the corresponding valve plate inside the proportional valve 26 to open the corresponding angle, according to the above principle, the water will be delivered to the plurality of support pipes 25 respectively, and through the corresponding proportional valve 26, the water with appropriate impact force will be delivered to the ring cylinder 27, and then discharged through the flushing port 28. The water discharged through the flushing port 28 is used to flush the thicker biofilm, and the thicker the biofilm is, the greater the impact force of the water is. The water is used to remove the aged biofilm, so that the biofilm maintains a proper thickness, and the pollutant degradation efficiency is improved.

[0038] And, when the two first tension sensors 8 detect that the gravity on both sides of the lifting frame 9 is small, and the second tension sensor 10 detects that the weight of the individual pull rope 11 is small (less than 10 grams), it indicates that the water distribution plate 4 may be blocked, causing uneven water distribution, and the water flow bypasses part of the filler area, so that the individual filler support 12 is sparse due to lack of substrate contact, resulting in the weight of the pull rope 11 being less than the set threshold value. After the lifting frame 9 moves the plurality of pull ropes 11 downward to the initial position, the controller 2 will control the electric push rods 37 on both sides to work, the electric push rods 37 will drive the moving cover 38 to move, so that the moving cover 38 is sleeved outside the fixed seat 39, and the moving cover 38 will drive the plurality of conductive blocks 40 and the corresponding conductive seats 41 to contact. Then the second tension sensor 10 will control the corresponding conductive block 40 and the external power supply to be electrically connected through the controller 2, and the external current will be delivered to the corresponding lamp beads 362 through the conductive seat 41, so that the lamp beads 362 on the surface of the prompt plate 361 at the corresponding position are lit, which facilitates the operator to find the water distribution plate 4 at the corresponding position later and dredge the water distribution plate 4;

[0039] With reference to the above principles, when the servo motor 132 drives the lifting plate 7 to move upwards to a specified position, and the controller 2 detects that the gravity difference between the left and right sides of the lifting frame 9 is large through the first tension sensor 8, it indicates that the biofilm in the anaerobic tank is unevenly distributed due to uneven water distribution or stirring, and the microorganisms in different areas of the filler have a large difference in the concentration of organic matter they contact, resulting in some fillers having too thick a biofilm, and others having a sparse or no biofilm. At this time, the controller 2 controls the angle motor 19 to work for a set time, and the angle motor 19 drives the driving ring 18 to rotate through the gear and ring gear transmission mechanism (after the cylinder 17 moves upwards to a specified position, the positioning pin 20 is inserted into the positioning cylinder 21 to fix the position of the cylinder 17). The driving ring 18 drives the lifting plate 7 to rotate one hundred and eighty degrees, and the lifting plate 7 drives the lifting frame 9 and the plurality of pull ropes 11 to rotate one hundred and eighty degrees at the same time through the first tension sensor 8, so that the filler support 12 with a thick biofilm and the filler support 12 with a sparse or no biofilm are exchanged in position. Then the above steps are repeated, and the lifting frame 9 is moved downwards to a set position, so that the part with a sparse or no biofilm can be treated for biofilm formation. At the same time, the controller 2 also controls the internal buzzer module to work and issue a prompt sound to remind the operator to maintain the water distribution equipment or the stirring equipment.

[0040] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An anaerobic biological treatment tank for sewage treatment, comprising a tank body (1), wherein a controller (2) is fixedly connected to the front side wall of the tank body (1), an inlet pipe (3) is fixedly connected to the right side wall of the tank body (1), a plurality of water distribution plates (4) are fixedly connected to the lower side wall of the inlet pipe (3), an outlet pipe (5) is fixedly connected to the left side wall of the tank body (1), an installation cover (6) is fixedly connected to the upper end of the tank body (1), a lifting plate (7) is connected to the upper side wall of the installation cover (6) via a drive assembly (13), the same lifting frame (9) is fixedly connected to the left and right sides of the lower side wall of the lifting plate (7) via a first tension sensor (8), a plurality of second tension sensors (10) are fixedly connected to the lower side wall of the lifting frame (9), a pull rope (11) is connected to the detection end of the plurality of second tension sensors (10), and a plurality of packing supports (12) are connected to the surface of the pull rope (11), characterized in that, Also includes: A flushing assembly (22) is disposed on the inner wall of the mounting cover (6). The flushing assembly (22) is connected to an external pump mechanism and is used to clean the thickened biofilm. Two limiting components (29) are fixedly connected to the left and right sides of the lower side wall of the lifting frame (9) for fixing the position of the lifting frame (9); The indicator component (36), connected to the front side wall of the mounting cover (6), is used to display the position of the blocked water distribution plate (4). The drive component (13) includes two vertical plates (131) fixedly connected to the upper side wall of the mounting cover (6). A servo motor (132) is fixedly connected to the right side wall of the right vertical plate (131). The same rope drum (14) is rotatably connected between the two vertical plates (131). The output end of the servo motor (132) is fixedly connected to the right end of the rope drum (14). The rope drum (14) The outer wall is wound with a cable (15). The upper side wall of the mounting cover (6) is fixedly connected to a connecting cylinder (16). The lower end of the cable (15) passes through the connecting cylinder (16) and is fixedly connected to a cylinder (17). The outer wall of the cylinder (17) is rotatably connected to a drive ring (18) via a bearing. The side wall of the cylinder (17) is fixedly connected to an angle motor (19) via a bracket. The angle motor (19) is driven by the drive ring (18) through a gear ring transmission mechanism. The upper side wall of the cylinder (17) is fixedly connected to... There are two positioning pins (20). The lower inner wall of the mounting cover (6) is fixedly connected to two positioning cylinders (21) that match the positioning pins (20). The prompting component (36) includes a prompting disc (361) fixedly connected to the front side wall of the mounting cover (6). The shape of the prompting disc (361) is the same as that of the water inlet pipe (3), both being serpentine structures. Multiple LED beads (362) are connected to the surface of the prompting disc (361). Electric push rods (37) are fixedly connected to both the left and right sides of the upper side wall of the lifting plate (7). The moving end of the electric push rod (37) is fixedly connected to a moving cover (38). The inner walls of the left and right sides of the mounting cover (6) are fixedly connected to a fixed seat (39) that matches the moving cover (38). The inner wall of the moving cover (38) is fixedly connected to a plurality of conductive blocks (40). The conductive blocks (40) are electrically connected to the corresponding second tension sensor (10). The side wall of the fixed seat (39) is fixedly connected to a plurality of conductive seats (41). The conductive seats (41) are electrically connected to the corresponding lamp beads (362).

2. The anaerobic biological treatment tank for sewage treatment according to claim 1, characterized in that, The flushing assembly (22) includes a square frame (221) fixedly connected to the inner wall of the mounting cover (6). Multiple horizontal pipes (222) are fixedly connected to the inner wall of the square frame (221). A common connecting pipe (23) is fixedly connected between two adjacent horizontal pipes (222). A conveying pipe (24) is fixedly connected to the side wall of the rightmost horizontal pipe (222). The conveying pipe (24) is connected to an external pump mechanism. Multiple support pipes (25) are fixedly connected to the side wall of the horizontal pipe (222). A proportional valve (26) is provided inside the support pipe (25). The second tension sensor (10) is electrically connected to the corresponding proportional valve (26) through the controller (2). A ring cylinder (27) is fixedly connected to the end of the support pipe (25) away from the horizontal pipe (222). A flushing port (28) is provided on the inner wall of the ring cylinder (27). The lower end of the pull rope (11) passes through the ring cylinder (27).

3. The anaerobic biological treatment tank for sewage treatment according to claim 2, characterized in that, The limiting component (29) includes a limiting pin (291) fixedly connected to the lower side wall of the lifting frame (9). The upper side wall of the square frame (221) is fixedly connected to a limiting cylinder (292) that matches the limiting pin (291). The side wall of the limiting cylinder (292) is fixedly connected to a horizontal cylinder (30). The horizontal cylinder (30) and the support pipe (25) are fixedly connected to the same vertical pipe (31). The vertical pipe (31) is provided with a control valve (32) and a water pressure sensor (33). The inner wall of the horizontal cylinder (30) is fixedly connected to a piston block (34) by a spring. The side wall of the piston block (34) is fixedly connected to a locking pin (35). The side wall of the limiting pin (291) is provided with a locking groove that matches the locking pin (35).

4. The anaerobic biological treatment tank for sewage treatment according to claim 1, characterized in that, An airbag (42) is fixedly connected to the inner wall of the connecting cylinder (16), and a blower (43) is fixedly connected to the upper side wall of the mounting cover (6). The air outlet of the blower (43) is connected to the airbag (42), and a magnetic control valve (44) is provided at the air outlet of the blower (43).

5. The anaerobic biological treatment tank for sewage treatment according to claim 1, characterized in that, The lower end of the pull rope (11) is fixedly connected to a counterweight (45), which is made of stainless steel.

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