An anaerobic reactor mixed water distribution device

Abstract

The application relates to an anaerobic reactor mixed water distribution device, belonging to the technical field of anaerobic reactor mixed water distribution devices, which comprises an outer shell, an inner shell fixed on the inner bottom wall of the outer shell, a water inlet mechanism arranged on the outer shell, an auxiliary mechanism arranged on the outer shell, and a water outlet pipe fixed on the left side of the outer shell. The water inlet mechanism comprises multiple spray pipes fixed on the outer circumferential wall of the outer shell, multiple collection pipes fixed on the outer circumferential wall of the inner shell, a suction chamber fixed on one end of each collection pipe close to the spray pipe, a connecting chamber fixed on the end of each collection pipe away from the suction chamber, and a water spraying pipe rotationally connected to one side of the connecting chamber away from the collection pipe. The anaerobic reactor mixed water distribution device has the advantages that sewage is sprayed into the inner part of the outer shell through the water inlet mechanism, a negative pressure suction force is generated during spraying, anaerobic sludge can be sucked into the inner part of the inner shell to form a cyclone, the mass transfer effect of the anaerobic reaction is strengthened, sludge accumulation, calcification and hardening are avoided, and the reaction efficiency is higher.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mixed water distribution devices for anaerobic reactors, in particular to a mixed water distribution device for an anaerobic reactor. BACKGROUND

[0002] An anaerobic reactor is a high-speed anaerobic reactor for treating wastewater by biological method. The anaerobic reactor is provided with a water distributor structure. The main function of the water distributor structure is to inject wastewater and external circulating water into the reactor and achieve uniform distribution in the cross section of the reactor. The form of the water distributor structure directly determines the mass transfer effect of the reactor and the operation stability of the reactor. The water distribution design of the anaerobic reactor such as UASB, EGSB and IC fluidized bed reactor is the core of the reactor design. Whether the water distribution is uniform and whether the sludge and wastewater are fully mixed is the basis for ensuring the reaction efficiency.

[0003] At present, the existing anaerobic water distributor has some shortcomings in actual use. There are problems of poor mass transfer effect of water flow and anaerobic sludge, low reaction efficiency, and problems of water distribution dead zone and sludge accumulation and calcification hardening. Therefore, the present application provides a mixed water distribution device for an anaerobic reactor to solve the above problems. SUMMARY

[0004] In view of the shortcomings of the prior art, the present application provides a mixed water distribution device for an anaerobic reactor, which has the advantages of good mass transfer effect and high reaction efficiency, and solves the problems of poor mass transfer effect and low reaction efficiency.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a mixed water distribution device for an anaerobic reactor, comprising an outer shell, an inner shell fixed on the inner bottom wall of the outer shell, a water inlet mechanism arranged on the outer shell, an auxiliary mechanism arranged on the outer shell, and a water outlet pipe fixed on the left side of the outer shell.

[0006] The water inlet mechanism comprises a plurality of spray pipes fixed on the outer peripheral wall of the outer shell, a plurality of collection pipes fixed on the outer peripheral wall of the inner shell, a suction chamber fixed on one end of the collection pipe close to the spray pipe, a connecting chamber fixed on the end of the collection pipe away from the suction chamber, a water spray pipe rotatably connected to one side of the connecting chamber away from the collection pipe, and a driving assembly arranged on the outer shell for driving the plurality of water spray pipes to reciprocally turn over.

[0007] Further, the driving assembly comprises a driving bin fixed on the bottom surface of the shell, a motor fixed on the bottom surface of the driving bin, a driving rod fixed on the top end of the output shaft of the motor, a circular plate fixed on the outer circumferential wall of the driving rod, two extrusion blocks fixed on the top surface of the circular plate, a plurality of sliding columns slidingly connected on the inner bottom wall of the shell, a contact block fixed on the bottom end of the sliding column, a plurality of rolling balls rotatably connected on the bottom surface of the contact block, a hinge rod hingedly connected on the bottom surface of the water spraying pipe and the top surface of the sliding column, and a reset spring sleeved on the outer circumferential wall of the sliding column.

[0008] Further, the auxiliary mechanism comprises a limiting plate fixed between the inner walls of the shell, a mesh plate slidingly connected between the inner walls of the shell, a fixing assembly for fixing the mesh plate arranged on the shell, a top cover arranged on the top surface of the shell, a cleaning plate fixed on the top end of the driving rod, a cleaning brush fixed on the top surface of the cleaning plate, a plurality of stirring rods fixed on the outer circumferential wall of the driving rod, four blowdown pipes fixed on the bottom surface of the shell, and blowdown valves fixed on the outer circumferential wall of the blowdown pipes.

[0009] Further, the fixing assembly comprises two clamping blocks slidingly connected on the inner walls of the shell, a sliding groove arranged on the inner circumferential wall of the shell for slidingly connecting the clamping blocks, a limiting spring fixed on the side of the clamping block away from the mesh plate, and a clamping groove arranged on the left and right sides of the mesh plate.

[0010] Further, the shell is a circular bin with an open top surface and a hollow interior, the inner shell is a hollow annular circular truncated cone shell, the shell and the inner shell are located on the same central axis, the bottom surface of the shell is fixed with a supporting seat, and a glass observation window is arranged on the front surface of the shell.

[0011] Further, the plurality of collecting pipes are equidistantly distributed along the circumferential direction of the inner shell, the suction bin is a conical bin, the plurality of jet pipes are equidistantly distributed along the circumferential direction of the shell, and the plurality of jet pipes are respectively extended into the plurality of suction bins and horizontally opposite to the collecting pipes at one end inside the shell.

[0012] Further, the water spraying pipe is a bent pipe, the plurality of water spraying pipes are rotationally symmetrical, the hinge joint of the hinge rod is close to the end of the water spraying pipe away from the connecting bin, the extrusion block is a trapezoidal block, a sliding hole is arranged on the inner bottom wall of the shell for penetrating and slidingly connecting the sliding column, and the reset spring is located at the bottom of the shell.

[0013] Further, the limiting plate is an annular plate, the mesh plate is located on the top of the limiting plate, the top cover is fixed with the shell through bolts, and the top end of the cleaning brush penetrates the limiting plate and contacts the mesh plate.

[0014] Further, the top ends of the four sewage pipes extend to the inner and outer sides of the inner shell respectively, the plurality of stirring rods are arranged in the inner shell, the plurality of stirring rods are divided into groups and are distributed in an up-down manner, and the plurality of stirring rods in the same group are distributed equidistantly along the outer peripheral wall of the driving rod.

[0015] Further, the two chutes are located above the limiting plate and are opposite to each other, the chute and the clamping block are T-shaped structures, the clamping groove is communicated with the top surface of the mesh plate and is used for inserting the clamping block, and the water outlet pipe is located above the mesh plate.

[0016] Compared with the prior art, the technical scheme of the application has the following beneficial effects:

[0017] 1. The anaerobic reactor mixing water distribution device, when in use, sewage is sprayed into the inside of the shell through the spray pipe provided by the water inlet mechanism, and the negative pressure suction generated during spraying can suck the anaerobic sludge deposited on the bottom wall of the shell into the collecting pipe, and the anaerobic sludge enters the inside of the inner shell with the water flow to form a cyclone, thereby strengthening the mass transfer effect of the anaerobic reaction, avoiding the calcification and hardening of sludge accumulation, and then the sewage after the reaction is completed flows out through the water outlet pipe, and the sludge falls back to the bottom wall of the shell again to mix with the newly incoming sewage to form a cyclic reaction process, thereby achieving higher reaction efficiency.

[0018] 2. The anaerobic reactor mixing water distribution device, when the sewage mixed with anaerobic sludge is sprayed out through the water spray pipe, the motor, the hinged rod, the return spring and other structures provided by the driving assembly can make the water outlet end of the water spray pipe reciprocate up and down within a certain angle, thereby achieving the effect of adjusting the water outlet angle, which is beneficial to reducing the water distribution dead angle to improve the mixing effect.

[0019] 3. The anaerobic reactor mixing water distribution device, when the sewage flows upward and is discharged, the mesh plate provided by the auxiliary mechanism can play a filtering role, thereby intercepting the sludge in the shell, and when the motor is started, the stirring rod can be driven to rotate for stirring, so that the high-concentration anaerobic sludge can be fully mixed and stirred, thereby improving the anaerobic reaction effect, and at the same time, the cleaning brush can be driven to rotate to clean the mesh plate, thereby avoiding the blockage of the mesh plate affecting the water outlet.

[0020] 4. The anaerobic reactor mixing water distribution device, when the inside of the shell needs to be cleaned, the anaerobic sludge can be directly discharged through the sewage pipe, then the top cover is disassembled, and the limiting and fixing of the mesh plate by the fixing assembly is released, so that the mesh plate can be conveniently disassembled from the inside of the shell for replacement, the fixing assembly is simple to operate and convenient to use, and provides convenience for cleaning the inside of the shell. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a front view schematic diagram of the application;

[0022] Figure 2 It is a top view sectional schematic diagram of the inner shell of the application;

[0023] Figure 3 It is a front view schematic diagram of the shell of the present application;

[0024] Figure 4 It is a perspective schematic diagram of the circular plate of the present application;

[0025] Figure 5 It is an enlarged schematic diagram of A in the present application Figure 3

[0026] Figure 6 It is an enlarged schematic diagram of B in the present application Figure 3

[0027] In the figure: 1 shell, 2 inner shell, 301 injection pipe, 302 collection pipe, 303 suction chamber, 304 connecting chamber, 305 water injection pipe, 306 driving chamber, 307 motor, 308 driving rod, 309 circular plate, 310 extrusion block, 311 sliding column, 312 contact block, 313 ball, 314 hinged rod, 315 return spring, 401 limiting plate, 402 mesh plate, 403 top cover, 404 cleaning plate, 405 cleaning brush, 406 stirring rod, 407 drain pipe, 408 drain valve, 409 clamping block, 410 sliding groove, 411 limiting spring, 412 clamping groove, 5 water outlet pipe. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0029] Please refer to Figures 1-2 , the water mixing device of the anaerobic reactor in the embodiment comprises a shell 1, an inner shell 2 fixed on the inner bottom wall of the shell 1, the shell 1 is a circular chamber with a hollow interior and an open top surface, the inner shell 2 is a ring-shaped circular truncated cone shell with a hollow interior, the shell 1 and the inner shell 2 are located on the same central axis, the bottom surface of the shell 1 is fixed with a support seat, the front surface of the shell 1 is installed with a glass observation window, the shell 1 is provided with a water inlet mechanism, the shell 1 is provided with an auxiliary mechanism, and the left side of the shell 1 is fixed with a water outlet pipe 5. In use, sewage is injected into the interior of the shell 1 through the water inlet mechanism, and the negative pressure suction force generated during injection can suck the anaerobic sludge deposited on the inner bottom wall of the shell 1 into the interior of the inner shell 2 to form a cyclone, thereby strengthening the mass transfer effect of anaerobic reaction and avoiding the calcification and hardening of sludge accumulation. Subsequently, the sewage after reaction is discharged upward through the water outlet pipe 5, and the sludge falls back to the inner bottom wall of the shell 1 to mix with the newly incoming sewage to form a circulating reaction process, thereby achieving higher reaction efficiency.

[0030] ​​It should be noted that the control mode of the present application is controlled by the controller, and the control circuit of the controller can be realized by simple programming of those skilled in the art, and the power supply also belongs to the common knowledge in the art, and the present application is mainly used to protect the mechanical device, so the control mode and circuit connection of the present application will not be explained in detail.

[0031] Please refer to Figures 1-2 The water inlet mechanism comprises a plurality of spray pipes 301 fixed on the outer peripheral wall of the outer shell 1, a plurality of collection pipes 302 are fixed on the outer peripheral wall of the inner shell 2, and a suction chamber 303 is fixed on one end of the collection pipe 302 close to the spray pipe 301. A plurality of collection pipes 302 are equally distributed along the circumferential direction of the inner shell 2, the suction chamber 303 is a conical chamber, a plurality of spray pipes 301 are equally distributed along the circumferential direction of the outer shell 1, and one end of each of the plurality of spray pipes 301 inside the outer shell 1 extends into the plurality of suction chambers 303 and is horizontally opposite to the collection pipe 302. In use, sewage is introduced into the spray pipe 301, sprayed into the collection pipe 302 through the spray pipe 301, and negative pressure is generated at the suction chamber 303 during flow, so that anaerobic sludge inside the outer shell 1 is sucked from the suction chamber 303. One end of the collection pipe 302 away from the suction chamber 303 is fixed with a connecting chamber 304, the connecting chamber 304 away from the collection pipe 302 is rotatably connected with a water spraying pipe 305, the water spraying pipe 305 is a bent pipe, and a plurality of water spraying pipes 305 are rotationally symmetrical. Further, the mixed sewage enters the connecting chamber 304, and is further sprayed into the inside of the inner shell 2 through the water spraying pipe 305. The water column sprayed by the plurality of water spraying pipes 305 forms a rotational flow in the inner shell 2, which strengthens the mass transfer effect of anaerobic reaction. Subsequently, the sewage after reaction is discharged upward through the water outlet pipe 5. The outer shell 1 is provided with a driving assembly for driving the plurality of water spraying pipes 305 to reciprocally overturn. When the sewage mixed with anaerobic sludge is sprayed through the water spraying pipe 305, the water outlet end of the water spraying pipe 305 can be reciprocally overturned up and down within a certain angle by the driving assembly, thereby achieving the effect of adjusting the water outlet angle, which is beneficial to reducing the water distribution dead angle to improve the mixing effect.

[0032] Please refer to Figures 1-5In the embodiment, the driving assembly includes a driving bin 306 fixed on the bottom surface of the shell 1, the bottom surface of the driving bin 306 is fixed with a motor 307, the top end of the output shaft of the motor 307 is fixed with a driving rod 308, the outer circumferential wall of the driving rod 308 is fixed with a circular plate 309, the top surface of the circular plate 309 is fixed with two extrusion blocks 310, the extrusion blocks 310 are trapezoidal blocks, when the water spraying pipe 305 sprays water, the motor 307 is started, the motor 307 drives the driving rod 308 to rotate, the driving rod 308 drives the circular plate 309 to rotate, the circular plate 309 drives the two extrusion blocks 310 to revolve around the driving rod 308, a plurality of sliding columns 311 are slidingly connected to the inner bottom wall of the shell 1, the bottom end of the sliding column 311 is fixed with a contact block 312, the bottom surface of the contact block 312 is rotatably connected with a ball 313, further, when the extrusion block 310 contacts with the ball 313, the ball 313 is pushed to move upward, the contact block 312 is pushed to move upward with the sliding column 311, the bottom surface of the water spraying pipe 305 is hingedly connected with a hinge rod 314 hingedly connected at the top surface of the sliding column 311, the hinge rod 314 is close to the end of the water spraying pipe 305 away from the connecting bin 304, the sliding column 311 pushes the end of the water spraying pipe 305 away from the connecting bin 304 to overturn upward through the hinge rod 314, the water outlet angle is changed, the outer circumferential wall of the sliding column 311 is sleeved with a return spring 315, the return spring 315 is located at the bottom of the shell 1, when the contact block 312 moves upward, the return spring 315 is compressed, when the extrusion block 310 is separated from the ball 313, the return spring 315 pushes the sliding column 311 to move downward, and then the end of the water spraying pipe 305 away from the connecting bin 304 is overturned downward, so that the water spraying pipe 305 can adjust the water outlet angle within a certain angle, and the water distribution dead zone is reduced.

[0033] In the embodiment, the inner bottom wall of the shell 1 is provided with a sliding hole for the sliding column 311 to penetrate and slidingly connect, it should be noted that the sliding hole can be provided with a sealing ring for sealing, in addition, the rotating connection between the driving rod 308 and the shell 1 can also be provided with a sealing bearing for sealing connection, the sealing means belongs to the existing public technology, which will not be described in detail herein.

[0034] Please refer to Figures 1-6In the embodiment, the auxiliary mechanism includes a limiting plate 401 fixed between the inner walls of the shell 1, and a mesh plate 402 slidingly connected between the inner walls of the shell 1. The limiting plate 401 is an annular plate, and the mesh plate 402 is located on the top of the limiting plate 401. After the sewage reaction, the sewage flows upward, is filtered by the mesh plate 402, and is then discharged from the water outlet pipe 5, so that the anaerobic sludge can be left inside the shell 1. The shell 1 is provided with a fixing assembly for fixing the mesh plate 402. The top surface of the shell 1 is provided with a top cover 403 fixed to the shell 1 by bolts. The top cover 403 is detachable, and cooperates with the fixing assembly to enable the mesh plate 402 to be taken out of the shell 1, thereby facilitating the cleaning of the shell 1. The top end of the driving rod 308 is fixed with a cleaning plate 404, and the top surface of the cleaning plate 404 is fixed with a cleaning brush 405. The top end of the cleaning brush 405 penetrates through the limiting plate 401 and is in contact with the mesh plate 402. The driving rod 308 can also drive the cleaning plate 404 to rotate, and the cleaning plate 404 drives the cleaning brush 405 to rotate to clean the mesh plate 402, thereby avoiding the clogging of the mesh plate 402 and affecting the water outlet. A plurality of stirring rods 406 are fixed on the outer peripheral wall of the driving rod 308. The plurality of stirring rods 406 are arranged in the inner shell 2 and are divided into a plurality of groups and distributed in an up-down manner. The plurality of stirring rods 406 in the same group are equidistantly distributed along the outer peripheral wall of the driving rod 308. At the same time, the driving rod 308 drives the stirring rods 406 to collide to stir, so that the high-concentration anaerobic sludge is fully mixed and stirred with the sewage, the anaerobic reaction effect is improved, and the bottom surface of the shell 1 is fixed with four blow-off pipes 407. The outer peripheral wall of each blow-off pipe 407 is fixed with a blow-off valve 408, and the top end of each blow-off pipe 407 extends to the inner and outer sides of the inner shell 2.

[0035] Please refer to Figures 1-6 In the embodiment, the fixing assembly includes two clamping blocks 409 slidingly connected to the inner walls of the shell 1. The inner peripheral wall of the shell 1 is provided with a sliding groove 410 for slidingly connecting the clamping blocks 409. The side, away from the mesh plate 402, of each clamping block 409 is fixed with a limiting spring 411. The left and right sides of the mesh plate 402 are both provided with a clamping groove 412. When it is necessary to disassemble the mesh plate 402 to clean the inside of the shell 1, the blow-off valve 408 is opened, so that the sludge and sewage in the shell 1 and the inner shell 2 are discharged through the blow-off pipes 407. Then, the top cover 403 is disassembled, the clamping blocks 409 are pushed into the sliding grooves 410 and compress the limiting springs 411. When the clamping blocks 409 are separated from the clamping grooves 412, the mesh plate 402 can be slid upward to be separated from the shell 1 for disassembly. After cleaning, the above-mentioned operations are performed in reverse, the clamping blocks 409 are pushed into the clamping grooves 412 by the limiting springs 411 to limit and fix the mesh plate 402.

[0036] In the embodiment, two sliding grooves 410 are located above the limiting plate 401 and are opposite to each other, the sliding groove 410 and the clamping block 409 are T-shaped structures, the clamping groove 412 is communicated with the top surface of the mesh plate 402 and is used for inserting the clamping block 409, and the water outlet pipe 5 is located above the mesh plate 402.

[0037] The working principle of the above embodiment is as follows:

[0038] (1) In use, sewage is introduced into the collection pipe 302 through the injection pipe 301, and in the flow process, negative pressure is generated at the suction chamber 303, so that the anaerobic sludge in the shell 1 is sucked from the suction chamber 303, mixed with the sewage and then enters the connecting chamber 304, and further sprayed into the inside of the inner shell 2 through the water injection pipe 305, and the water columns sprayed by the plurality of water injection pipes 305 form a cyclone in the inner shell 2, thereby strengthening the mass transfer effect of the anaerobic reaction, and then the reacted sewage is discharged upward through the water outlet pipe 5.

[0039] (2) When the water injection pipe 305 sprays water, the motor 307 is started, the motor 307 drives the driving rod 308 to rotate, the driving rod 308 drives the circular plate 309 to rotate, the circular plate 309 drives the two extrusion blocks 310 to revolve around the driving rod 308, further, when the extrusion blocks 310 contact the balls 313, the balls 313 are pushed upward, the balls 313 push the contact blocks 312 and the sliding columns 311 to move upward, the sliding columns 311 push the water injection pipe 305 away from one end of the connecting chamber 304 to rotate upward through the hinged rod 314, thereby changing the water outlet angle, when the contact blocks 312 move upward, the return springs 315 are compressed, when the extrusion blocks 310 are separated from the balls 313, the return springs 315 push the sliding columns 311 to move downward, thereby making the water injection pipe 305 away from one end of the connecting chamber 304 to rotate downward, so that the water injection pipe 305 can adjust the water outlet angle within a certain angle, thereby reducing the water distribution dead zone.

[0040] (3) When the sewage flows upward after the reaction, the sewage is filtered through the mesh plate 402 and then discharged from the water outlet pipe 5, so that the anaerobic sludge can remain in the shell 1, the top cover 403 is detachable, and the mesh plate 402 can be taken out from the shell 1 by cooperating with the fixing assembly, thereby facilitating the cleaning of the shell 1, when the motor 307 drives the driving rod 308 to rotate, the driving rod 308 can also drive the cleaning plate 404 to rotate, the cleaning plate 404 drives the cleaning brush 405 to rotate to clean the mesh plate 402, thereby avoiding the blockage of the mesh plate 402 affecting the water outlet, and at the same time, the driving rod 308 drives the stirring rod 406 to collide to stir, so that the high-concentration anaerobic sludge is fully mixed with the sewage, thereby improving the anaerobic reaction effect.

[0041] (4) When the inside of the shell 1 needs to be cleaned, open the drain valve 408, and the sludge and sewage inside the shell 1 and the inner shell 2 are drained through the drain pipe 407, then remove the top cover 403, push the clamping block 409 into the sliding groove 410 and compress the limiting spring 411, when the clamping block 409 is separated from the clamping groove 412, the mesh plate 402 can be slid upward to be separated from the shell 1 for disassembly, after cleaning, reverse the above operation, the clamping block 409 is pushed into the clamping groove 412 through the limiting spring 411 to limit and fix the mesh plate 402.

[0042] It should be noted that, in this document, the terms "first", "second", and so on are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between the entities or operations. Also, the terms "comprises", "comprising", or any other variations thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that includes a list of elements does not only include those elements, but also includes other elements not explicitly listed, or other elements inherent to such a process, method, article, or apparatus. Without more limitations, an element defined by the phrase "comprises a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0043] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements, and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An anaerobic reactor mixing and water distribution device, comprising a shell (1), characterized in that: An inner shell (2) is fixed on the inner bottom wall of the outer shell (1). A water inlet mechanism is provided on the outer shell (1). An auxiliary mechanism is provided on the outer shell (1). A water outlet pipe (5) is fixed on the left side of the outer shell (1). The water inlet mechanism includes multiple spray pipes (301) fixed on the outer peripheral wall of the outer shell (1), and multiple collection pipes (302) fixed on the outer peripheral wall of the inner shell (2). A suction chamber (303) is fixed at one end of the collection pipe (302) near the spray pipe (301), and a connecting chamber (304) is fixed at one end of the collection pipe (302) away from the suction chamber (303). A water spray pipe (305) is rotatably connected to the side of the connecting chamber (304) away from the collection pipe (302). The outer shell (1) is provided with a drive assembly for driving the multiple water spray pipes (305) to reciprocate. The drive assembly includes a drive chamber (306) fixed to the bottom surface of the housing (1), a motor (307) fixed to the bottom surface of the drive chamber (306), a drive rod (308) fixed to the top of the output shaft of the motor (307), a circular plate (309) fixed to the outer peripheral wall of the drive rod (308), two pressing blocks (310) fixed to the top surface of the circular plate (309), a plurality of sliding columns (311) slidably connected to the inner bottom wall of the housing (1), a contact block (312) fixed to the bottom end of the sliding column (311), a ball bearing (313) rotatably connected to the bottom surface of the contact block (312), a hinge rod (314) hinged to the bottom surface of the water spray pipe (305) with its bottom end hinged to the top surface of the sliding column (311), and a return spring (315) fitted on the outer peripheral wall of the sliding column (311). The outer shell (1) is a circular chamber with a hollow interior and an open top surface, and the inner shell (2) is a hollow annular frustum shell. The outer shell (1) and the inner shell (2) are located on the same central axis. Multiple collection pipes (302) are equidistantly distributed along the circumference of the inner shell (2). The suction chamber (303) is a conical chamber. Multiple spray pipes (301) are equidistantly distributed along the circumference of the outer shell (1). One end of the multiple spray pipes (301) located inside the outer shell (1) extends into the multiple suction chambers (303) and is horizontally opposite to the collection pipes (302). In use, sewage is introduced through the spray pipes (301) and sprayed into the collection pipes (302) from the spray pipes (301). During the flow, a negative pressure is generated at the suction chamber (303), which causes the anaerobic sludge inside the outer shell (1) to be sucked in from the suction chamber (303). The water spray pipe (305) is a bent pipe. Multiple water spray pipes (305) are rotationally symmetrical. After mixing with sewage, the water enters the connecting chamber (304) and is further sprayed into the inner shell (2) through the water spray pipe (305). The water jets sprayed from multiple water spray pipes (305) form a swirling flow inside the inner shell (2). The hinge rod (314) is hinged at the end of the water spray pipe (305) away from the connecting chamber (304). The extrusion block (310) is a trapezoidal block. The inner bottom wall of the outer shell (1) is provided with a sliding hole for the sliding column (311) to pass through and slide with it. The reset spring (315) is located at the bottom of the outer shell (1).

2. The anaerobic reactor mixing and water distribution device according to claim 1, characterized in that: The auxiliary mechanism includes a limiting plate (401) fixed between the inner walls of the outer shell (1), a mesh plate (402) slidably connected between the inner walls of the outer shell (1), a fixing component for fixing the mesh plate (402) on the outer shell (1), a top cover (403) installed on the top surface of the outer shell (1), a cleaning plate (404) fixed at the top of the drive rod (308), a cleaning brush (405) fixed on the top surface of the cleaning plate (404), a plurality of stirring rods (406) fixed on the outer peripheral wall of the drive rod (308), four drain pipes (407) fixed on the bottom surface of the outer shell (1), and a drain valve (408) fixed on the outer peripheral wall of the drain pipes (407).

3. The anaerobic reactor mixing and water distribution device according to claim 2, characterized in that: The fixing component includes two locking blocks (409) that are slidably connected to the inner wall of the outer shell (1). The inner peripheral wall of the outer shell (1) has a sliding groove (410) for the locking blocks (409) to slide. A limit spring (411) is fixed on the side of the locking block (409) away from the mesh plate (402). The mesh plate (402) has a locking groove (412) on both the left and right sides.

4. The anaerobic reactor mixing and water distribution device according to claim 1, characterized in that: The bottom surface of the outer casing (1) is fixed with a support base, and the front surface of the outer casing (1) is equipped with a glass observation window.

5. The anaerobic reactor mixing and water distribution device according to claim 3, characterized in that: The limiting plate (401) is an annular plate, the mesh plate (402) is located on the top of the limiting plate (401), the top cover (403) is fixed to the outer shell (1) by bolts, and the top of the cleaning brush (405) penetrates the limiting plate (401) and contacts the mesh plate (402).

6. The anaerobic reactor mixing and water distribution device according to claim 3, characterized in that: The top ends of the four drain pipes (407) extend to the inner and outer sides of the inner shell (2), and the multiple stirring rods (406) are all arranged inside the inner shell (2). The multiple stirring rods (406) are divided into multiple groups and distributed vertically. The multiple stirring rods (406) in the same group are equidistantly distributed along the outer peripheral wall of the drive rod (308).

7. The anaerobic reactor mixing and water distribution device according to claim 3, characterized in that: The two slides (410) are located above the limiting plate (401) and are opposite to each other. The slides (410) and the locking blocks (409) are both T-shaped structures. The locking slot (412) is connected to the top surface of the mesh plate (402) and is used for the locking blocks (409) to be inserted. The water outlet pipe (5) is located above the mesh plate (402).

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