CN117209060A - Anaerobic tank for wastewater treatment - Google Patents

Abstract

The application relates to the technical field of wastewater treatment equipment, and discloses an anaerobic tank for wastewater treatment, which solves the problem of higher laying cost in the prior art. The application enables the anaerobic tank to comprise at least two states: the water distribution state and the mud discharge state enable the water distribution and the mud discharge of the anaerobic tank to be carried out through a single pump body, so that the laying cost of the system is saved.

Description

Anaerobic tank for wastewater treatment

Technical Field

The application relates to the technical field of wastewater treatment equipment, in particular to an anaerobic tank for wastewater treatment.

Background

The biological treatment technology is a common method for wastewater treatment and is mainly divided into aerobic biological treatment and anaerobic biological treatment. The aerobic biological treatment effect is stable and reliable, but aeration is needed, the energy consumption is high, and the method is not suitable for treating high-concentration wastewater. Anaerobic biological treatment technology has been widely used for treating high-concentration wastewater because of its advantages of low energy consumption, low sludge yield, and capability of recovering biogas in the digestion process. However, the existing anaerobic digestion process has the common problems of slow microorganism growth, long starting time, serious anaerobic sludge loss, low pollutant removal efficiency and the like.

The related technology includes the intermediate tank, mud pond and anaerobic tank body, first pipeline has been laid between anaerobic tank body and the intermediate tank, send into in the anaerobic tank body with waste water in the intermediate tank through first pipeline, be provided with first pump body on the first pipeline and be used for extracting waste water, anaerobic tank body and mud pond spare have laid the second pipeline, send into mud in the anaerobic tank body through the mud in the second pipeline into the mud pond, be provided with the second pump body on the second pipeline and be used for extracting the mud in the anaerobic tank body, all be provided with the ooff valve in first pipeline and the second pipeline, through opening and closing the ooff valve in order to switch the mode of water distribution or suction mud.

Aiming at the related technology, corresponding pipelines and water pumps are required to be arranged for water distribution and mud discharge, the laying cost is high, and the control of the switch of the water pump and each node valve of the pipelines is troublesome during operation.

Disclosure of Invention

In order to solve the problem of high paving cost in the prior art, the application provides an anaerobic tank for wastewater treatment.

The following technical scheme is adopted:

the anaerobic tank for wastewater treatment comprises a tank body and a pump body, wherein the water outlet end of the pump body is connected with the tank body through a first pipe body, the water inlet end of the pump body is connected with a second pipe body, the pump body further comprises a rotary pipe, one end of the rotary pipe is communicated with the first pipe body, the other end of the rotary pipe is communicated with the second pipe body, a first switching part which can enable the rotary pipe to be communicated with the first pipe body or be closed is arranged at the joint of the rotary pipe and the first pipe body, a third pipe body is communicated with the joint of the first pipe body, a second switching part which can enable the first pipe body to be communicated with the third pipe body or be closed is arranged at the joint of the first pipe body, a first water-break component which can block or open the first pipe body is arranged between the first switching part and the second switching part, and a first water-break component which can enable the rotary pipe to be communicated with the second pipe body or be opened is arranged between the second pipe body and the second switching part or the second pipe body.

By adopting the technical scheme, the anaerobic tank comprises at least two states: the water distribution state is that the second pipe body is connected with the middle tank, the first pipe body is communicated with the tank body, at the moment, both ends of the rotary pipe are closed and are not communicated with the second pipe body and the first pipe body, the third pipe body is closed, and the pump body pumps water in the middle tank into the first pipe body through the second pipe body and fills the tank body; the second water-break assembly cuts off the communication between the second pipe body and the middle tank, the sludge sequentially passes through the tank body, the first pipe body part enters the rotary pipe, is sent to the second pipe body, passes through the pump body, is sent to the communication part of the first pipe body and the third pipe body, and is finally sent to the sludge tank by the third pipe body; the single pump body distributes water and discharges mud to the anaerobic tank so as to save the laying cost of the system.

Optionally, the first body includes changeover portion and delivery segment, the third body is connected on the changeover portion, the gyration pipe connect in on the delivery segment, first water-break piece set up in the changeover portion with between the delivery segment, first changeover portion includes first gyration pipe, first gyration pipe rotate connect in the delivery segment, first gyration pipe lateral wall offer rotatable back with the first through-hole of gyration pipe intercommunication, the second changeover portion includes the second gyration pipe, the second gyration pipe rotate connect in the changeover portion, the second through-hole of rotatable back with the third body intercommunication has been seted up to the second gyration pipe lateral wall.

Through adopting above-mentioned technical scheme, rotate first transfer pipe, first body and transfer pipe intercommunication when first through-hole and transfer pipe mouth of pipe correspond, after first through-hole and transfer pipe skew, the pipe wall of first transfer pipe blocks transfer pipe mouth of pipe to block the intercommunication of first body and transfer pipe, the same reason rotates the second transfer pipe, in order to realize the intercommunication and the switching of closure of first body and third body, with this pipeline switching structure that provides a comparatively convenient.

Optionally, the third switching piece includes the third changes the pipe, the third changes the pipe rotate connect in the second body, third changes pipe one side and has seted up rotatable back with the third through-hole that turns the pipe intercommunication.

Through adopting above-mentioned technical scheme, rotate the third and change the pipe, second body and gyration pipe intercommunication when third through-hole and gyration pipe mouth correspond, after third through-hole and gyration pipe skew, the pipe wall of third changes the pipe and stops gyration pipe mouth to the intercommunication of second body and gyration pipe is blocked, in order to provide the steering for the water.

Optionally, the first water-break assembly includes first connecting piece and first separation blade, first connecting piece is perpendicular first body length direction set up in first transfer pipe with second transfer pipe is adjacent, offer in the first connecting piece can supply first separation blade gliding spread groove, first separation blade slidable to the separation first transfer pipe with the intercommunication of second transfer pipe, be provided with the control on the second transfer pipe first separation blade carries out gliding control.

Through adopting above-mentioned technical scheme, drive the removal of first separation blade through the control, first separation blade can slide between first commentaries on classics pipe and second commentaries on classics pipe to seal or open the pipeline of first body of pipe, after transition section and delivery segment are separated, and the transition section is connected with the third body of pipe, and delivery segment and gyration union coupling, the water can turn to.

Optionally, the control piece includes first control post, the curved control groove has been seted up on the first separation blade, first control post sliding connection in the control groove, first control post butt first separation blade inner wall and can promote first separation blade slides, first connecting piece in be provided with the guide post in the spread groove, first separation blade has been seted up and can supply the guide post carries out gliding groove of stepping down, first transfer tube outer wall is provided with first branch, second transfer tube outer wall is provided with the second branch, the twice fluting has been seted up along circumference to first body, first branch with second branch wears to establish corresponding the fluting to the external and can correspond in the fluting slides, first connecting piece has been seted up curved spout, first control post wears to establish the spout connect in the one end of second branch.

Through adopting above-mentioned technical scheme, drive the rotation of second commentaries on classics pipe through the rotation of second and rotate to make the first control column on the second branch slide in the control groove, and the butt control groove inner wall is in order to promote first separation blade and remove, realizes that first separation blade slides between first commentaries on classics pipe and second commentaries on classics pipe, thereby seals or opens the pipeline of first body.

Optionally, the second water-break component includes second connection piece and second separation blade, the second connection piece with second separation blade structure with first connection piece with first separation blade is the same, third change tub outer wall and be provided with third branch, the second body is equipped with the single of structure the fluting, third branch wears to establish out the fluting and can slide in the fluting, third branch one end is provided with can in the second separation blade the second control post that slides in the control groove.

Through adopting above-mentioned technical scheme, the second water-break subassembly is the same with first water-break subassembly structure, and the pipeline of second body is sealed or opened after the second separation blade removes to block the connection of second body and intermediate tank, so that the water can be sent to in the mud pond.

Optionally, the device further comprises three connecting rods and a control rod, wherein the control rod comprises a main shaft and a protruding block, the main shaft is arranged in parallel with the first pipe body, supporting pieces are arranged on the first pipe body and the second pipe body, two ends of the control rod are respectively and rotatably connected to the corresponding supporting pieces, one ends of the three connecting rods are rotatably connected to the corresponding first supporting rods, the corresponding second supporting rods and the corresponding third supporting rods, and the other ends of the three connecting rods are rotatably connected to the protruding block.

Through adopting above-mentioned technical scheme, drag first branch, second branch and third branch through rotating the control lever with the control link and rotate simultaneously to make the pipeline switch in water distribution state and mud discharging state.

Optionally, the one end that first body is kept away from the pump body is provided with input tube and output tube, output tube connection has a plurality of circumference array branch pipes of arranging, the input tube with all be provided with the ooff valve on the output tube.

By adopting the technical scheme, the range of sludge suction in the tank body is extended through the branch pipe, water distribution is carried out in the tank body through the input pipe, and the switch valve is used for opening or closing the input pipe or the output pipe.

In summary, the present application includes at least one of the following beneficial effects:

1. the water distribution and mud pumping of the anaerobic tank can be performed by only a single unidirectional pump body through the rotary pipe to switch the water flow direction, so that the special pipeline and water pump for water distribution and mud pumping in the prior art are replaced, and the cost of the system is saved;

2. through the cooperation of control lever and branch, can control the rotation of first branch, second branch and third branch simultaneously, can be convenient switch between water distribution state and mud discharge state, improve operating efficiency.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic view of a first tubular body in cross-section;

FIG. 3 is a schematic view of a second tubular body in cross-section;

FIG. 4 is a schematic view of the first, second and third rotary pipes;

FIG. 5 is a schematic view of a first water break assembly movement structure;

fig. 6 is a schematic view of a can body in cross-section.

Reference numerals illustrate: 1. an intermediate pool; 2. a sludge pool; 3. a tank body; 4. a pump body; 5. a first tube body; 51. a transition section; 52. a conveying section; 53. slotting; 54. a support sheet; 55. a first rotating pipe; 551. a first strut; 552. a swivel; 553. a first through hole; 56. a second rotary pipe; 561. a second through hole; 562. a second strut; 563. a first control column; 57. an input tube; 58. an output pipe; 581. a branch pipe; 582. a switch valve; 6. a first water shut-off assembly; 61. a first connecting piece; 611. a connecting groove; 612. a guide post; 613. a chute; 62. a first baffle; 621. a control groove; 622. a relief groove; 7. a second tube body; 71. a third rotary pipe; 711. a third through hole; 712. a third strut; 72. a second water shut-off assembly; 721. a second connecting piece; 722. a second baffle; 8. a swivel tube; 9. a control lever; 91. a main shaft; 92. a bump; 93. a connecting rod; 10. and a third pipe body.

Detailed Description

The present application will be described in further detail with reference to fig. 1 to 6.

Referring to fig. 1 to 3, an embodiment of the present application discloses an anaerobic tank for wastewater treatment, which connects an intermediate tank 1 for supplying wastewater and a sludge tank 2 for discharging treated sludge through pipes. The anaerobic tank comprises a tank body 3 and a pump body 4, wherein the water outlet end of the pump body 4 is connected with the tank body 3 through a first pipe body 5, the water inlet end of the pump body 4 is connected with a second pipe body 7, the tail end of the second pipe body 7 is connected with a middle tank 1, the pump body 4 further comprises a rotary pipe 8, one end of the rotary pipe 8 is communicated with the first pipe body 5, the other end of the rotary pipe 8 is communicated with the second pipe body 7, a first switching piece which can enable the rotary pipe 8 to be communicated with or closed with the first pipe body 5 is arranged at the joint of the rotary pipe 8 and the first pipe body 5, a third pipe body 10 is communicated with the first pipe body 5, one end of the third pipe body 10, which is far away from the first pipe body 5, is connected with a sludge tank 2, a second switching piece which can enable the first pipe body 5 to be communicated with or closed with the third pipe body 10 is arranged at the joint of the first pipe body 5, a first water-break component 6 which can enable the first pipe body 5 to be blocked or opened between the first pipe body 7 and the second pipe body 7, and a blocking component 72 which can enable the first pipe body 7 to be communicated with or opened between the second pipe body 7 and the second pipe body 7 to be arranged at the joint of the second pipe body 7. The anaerobic tank comprises at least two states: in the water distribution state, the second pipe body 7 is connected with the middle tank 1, the first pipe body 5 is communicated with the tank body 3, at the moment, both ends of the rotary pipe 8 are closed and are not communicated with the second pipe body 7 and the first pipe body 5, the third pipe body 10 is closed, and the pump body 4 pumps water in the middle tank 1 into the first pipe body 5 through the second pipe body 7 and fills the tank body 3; in a sludge discharging state, the third pipe body 10 is connected with the sludge pond 2, the first water-break component 6 blocks the first pipe body 5 to enable the first pipe body 5 to be divided into two sections, one section is communicated with the rotary pipe 8, the other section is communicated with the third pipe body 10, the second water-break component 72 cuts off the communication between the second pipe body 7 and the middle pond 1, sludge sequentially passes through the first pipe body 5, the rotary pipe 8, the second pipe body, the pump body 4 and the third pipe body 10 in the tank body 3 to the sludge pond 2, part of the first pipe body 5 is conveyed into the rotary pipe 8, conveyed to the second pipe body 7, conveyed to the communication part between the first pipe body 5 and the third pipe body 10 after passing through the pump body 4, and finally conveyed out into the sludge pond 2 by the third pipe body 10; the single pump body 4 distributes water and discharges mud to the anaerobic tank so as to save the laying cost of the system.

Referring to fig. 2, specifically, the first pipe body 5 includes a transition section 51 and a conveying section 52, the transition section 51 is connected with the pump body 4, the third pipe body 10 is connected to the transition section 51, the rotary pipe 8 is connected to the conveying section 52, the first water break member is disposed between the transition section 51 and the conveying section 52, the first switching member includes a first rotary pipe 55, the first rotary pipe 55 is disposed along the length direction of the first pipe body 5, two ends of the first rotary pipe 55 are provided with rotary rings 552, the first rotary pipe 55 is rotatably connected to the conveying section 52, a first through hole 553 which is rotatably connected to the rotary pipe 8 is formed in a side wall of the first rotary pipe 55, the second switching member includes a second rotary pipe 56, a second through hole 561 which is rotatably connected to the third pipe body 10 is formed in a side wall of the second rotary pipe 56. The first rotating pipe 55 is rotated, when the first through hole 553 corresponds to the pipe orifice of the rotating pipe 8, the first pipe body 5 is communicated with the rotating pipe 8, and when the first through hole 553 deflects with the rotating pipe 8, the pipe wall of the first rotating pipe 55 blocks the pipe orifice of the rotating pipe 8 to block the communication between the first pipe body 5 and the rotating pipe 8, and similarly, the second rotating pipe 56 is rotated to realize the communication and the closing switching between the first pipe body 5 and the third pipe body 10, so that a more convenient pipeline switching structure is provided.

Referring to fig. 3, the third switching member includes a third rotary pipe 71, the third rotary pipe 71 is rotatably connected to the second pipe body 7, and a third through hole 711 which is rotatably connected to the rotary pipe 8 is formed at one side of the third rotary pipe 71. And the third rotating pipe 71 is rotated, when the third through hole 711 corresponds to the pipe opening of the rotating pipe 8, the second pipe body 7 is communicated with the rotating pipe 8, and when the third through hole 711 deflects from the rotating pipe 8, the pipe wall of the third rotating pipe 71 blocks the pipe opening of the rotating pipe 8 so as to block the communication between the second pipe body 7 and the rotating pipe 8 and provide steering for the water body.

The first water-break assembly 6 comprises a first connecting piece 61 and a first baffle piece 62, a sealing rubber strip is arranged on the periphery of the first baffle piece 62, the first connecting piece 61 is perpendicular to the length direction of the first pipe body 5 and is arranged at the adjacent position of the first rotary pipe 55 and the second rotary pipe 56, one side of the first connecting piece 61 is communicated with the first rotary pipe 55, the other side of the first connecting piece 61 is communicated with the second rotary pipe 56, a connecting groove 611 capable of enabling the first baffle piece 62 to slide is formed in the first connecting piece 61, the width of the connecting groove 611 is close to the thickness of the first baffle piece 62, the first baffle piece 62 can slide to be communicated with the first rotary pipe 55 and the second rotary pipe 56, and a control piece for controlling the first baffle piece 62 to slide is arranged on the second rotary pipe 56. The first baffle 62 is driven to move by the control member, and the first baffle 62 can slide between the first rotating pipe 55 and the second rotating pipe 56, so that the pipeline of the first pipe body 5 is closed or opened, after the transition section 51 and the conveying section 52 are separated, the transition section 51 is connected with the third pipe body 10, the conveying section 52 is connected with the rotating pipe 8, and the water body can be turned.

The control piece comprises a first control column 563, an arc-shaped control groove 621 is formed in the first baffle plate 62, the first control column 563 is slidably connected in the control groove 621, the diameter of the first control column 563 is equal to the width of the control groove 621, the first control column 563 is abutted against the inner wall of the first baffle plate 62 and can push the first baffle plate 62 to slide, a guide column 612 is arranged in the connecting groove 611 of the first connecting plate 61, a round abdicating groove 622 for the guide column 612 to slide is formed in the first baffle plate 62, a first supporting rod 551 is arranged on the outer wall of the first rotating tube 55, a second supporting rod 562 is arranged on the outer wall of the second rotating tube 56, two grooves 53 are formed in the first tube body 5 along the circumferential direction, the first supporting rod 551 and the second supporting rod 562 penetrate out of the corresponding grooves 53 to the outside and can slide in the corresponding grooves 53, an arc-shaped sliding groove 613 is formed in the first connecting plate 61, and the first control column 563 penetrates out of the sliding groove 613 to be connected with one end of the second supporting rod 562. The second rotating pipe 56 rotates to drive the second supporting rod 562 to rotate, so that the first control column 563 on the second supporting rod 562 slides in the control groove 621 and abuts against the inner wall of the control groove 621 to push the first baffle plate 62 to move, and the first baffle plate 62 slides between the first rotating pipe 55 and the second rotating pipe 56, so that the pipeline of the first pipe body 5 is closed or opened.

The second water breaking component 72 comprises a second connecting piece 721 and a second baffle 722, the structures of the second connecting piece 721 and the second baffle 722 are the same as those of the first connecting piece 61 and the first baffle 62, a third supporting rod 712 is arranged on the outer wall of the third rotary tube 71, a single groove 53 with the same structure is arranged on the second tube body 7, the third supporting rod 712 penetrates out of the groove 53 and can slide in the groove 53, and a second control column capable of sliding in a control groove 621 in the second baffle 722 is arranged at one end of the third supporting rod 712. The second water shutoff assembly 72 has the same structure as the first water shutoff assembly 6, and the second blocking piece 722 closes or opens the pipeline of the second pipe body 7 after moving so as to block the connection between the second pipe body 7 and the intermediate tank 1, so that the water body can be sent into the sludge tank 2.

The anaerobic tank further comprises three connecting rods 93 and a control rod 9, the control rod 9 is of a crankshaft structure and comprises a main shaft 91 and a convex block 92, the main shaft 91 of the control rod 9 is arranged parallel to the first pipe body 5, supporting pieces 54 are arranged on the first pipe body 5 and the second pipe body 7, the control rod 9 is respectively and rotatably connected into the corresponding supporting pieces 54 through two ends of the main shaft 91, one end of each of the three connecting rods 93 is rotatably connected with a corresponding first supporting rod 551, a corresponding second supporting rod 562 and a corresponding third supporting rod 712, and the other end of each of the three connecting rods 93 is rotatably connected onto the convex block 92 of the control rod 9. The control rod 9 is rotated to control the connecting rod 93 to drag the first supporting rod 551, the second supporting rod 562 and the third supporting rod 712 to rotate simultaneously, so that the pipeline is switched between the water distribution state and the sludge discharge state. Preferably, a control device such as a stepping motor or a rotary cylinder is additionally arranged at one end of the control rod 9 to drive the control rod 9 to rotate, so that the waterway switching is more convenient. In addition, a numerical control unit can be additionally arranged on the control equipment to further operate the opening and closing of the control equipment through signals, so that intelligent management is realized.

The first body 5 is provided with input tube 57 and output tube 58 far away from the one end of pump body 4, and output tube 58 is connected with a plurality of branch pipes 581 that circumference array was arranged, all is provided with the ooff valve 582 on input tube 57 and the output tube 58. The branch pipe 581 extends the suction range of the sludge in the tank body 3 through the output pipe 58, water distribution is carried out in the tank body 3 through the input pipe 57, and the switch valve 582 is used for opening or closing the input pipe 57 or the output pipe 58. Preferably, the switch valve 582 may be an electromagnetic valve, so as to facilitate the operation of personnel, and a numerical control unit may be additionally arranged for intelligent setting.

The implementation principle of the anaerobic tank for wastewater treatment in the embodiment of the application is as follows:

when the anaerobic tank is in a water distribution state, the second pipe body 7 is connected with the middle tank 1, the first pipe body 5 is communicated with the tank body 3, two ends of the rotary pipe 8 are closed and are not communicated with the second pipe body 7 and the first pipe body 5, the third pipe body 10 is closed, and the pump body 4 pumps water in the middle tank 1 into the first pipe body 5 through the second pipe body 7 and fills the tank body 3;

the control rod 9 is rotated to drive the first water-break component 6 to obstruct the first pipe body 5 to enable the first pipe body 5 to be two sections, the conveying section 52 is communicated with the rotary pipe 8, the transition section 51 is communicated with the third pipe body 10, the second water-break component 72 cuts off the communication between the second pipe body 7 and the middle tank 1, sludge is conveyed to the second pipe body 7 from the tank 3 to the rotary pipe 8 through the conveying section 52, is conveyed to the communicating part of the transition section 51 and the third pipe body 10 after passing through the pump body 4, and is finally conveyed to the sludge tank 2 through the third pipe body 10.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (8)

1. An anaerobic tank for wastewater treatment, characterized in that: the water pump comprises a tank body (3) and a pump body (4), wherein the water outlet end of the pump body (4) is connected with the tank body (3) through a first pipe body (5), the water inlet end of the pump body (4) is connected with a second pipe body (7), the pump body (4) further comprises a rotary pipe (8), one end of the rotary pipe (8) is communicated with the first pipe body (5) and the other end of the rotary pipe is communicated with the second pipe body (7), a first switching piece which can enable the rotary pipe (8) to be communicated with the first pipe body (5) or be closed is arranged at the joint of the rotary pipe (8) and the first pipe body (5), a third pipe body (10) is communicated with the first pipe body (5), a second switching piece which can enable the first pipe body (5) to be communicated with the third pipe body (10) or be closed is arranged at the joint of the first pipe body (5) and a second switching piece which can enable the first pipe body (5) to be communicated with the third pipe body (10) or be closed, a switching piece which can enable the first pipe body (5) to be connected with the second pipe body (7) to be opened is arranged at the joint of the first pipe body (5), a second water-break component (72) capable of blocking or opening the second pipe body (7) is arranged between the second pipe body (7) and the tank body (3).

2. An anaerobic tank for wastewater treatment according to claim 1, wherein: the first pipe body (5) comprises a transition section (51) and a conveying section (52), the third pipe body (10) is connected to the transition section (51), the rotary pipe (8) is connected to the conveying section (52), a first water-break piece is arranged between the transition section (51) and the conveying section (52), the first switching piece comprises a first rotary pipe (55), the first rotary pipe (55) is rotationally connected to the conveying section (52), a first through hole (553) which is communicated with the rotary pipe (8) after being rotationally arranged on the side wall of the first rotary pipe (55), the second switching piece comprises a second rotary pipe (56), the second rotary pipe (56) is rotationally connected to the transition section (51), and a second through hole (561) which is rotationally arranged on the side wall of the second rotary pipe (56) and is communicated with the third pipe body (10) is formed.

3. An anaerobic tank for wastewater treatment according to claim 2, wherein: the third switching piece comprises a third rotating pipe (71), the third rotating pipe (71) is rotationally connected to the second pipe body (7), and a third through hole (711) which is communicated with the rotating pipe (8) after being rotationally arranged on one side of the third rotating pipe (71).

4. An anaerobic tank for wastewater treatment according to claim 3, wherein: the first water-break assembly (6) comprises a first connecting piece (61) and a first baffle piece (62), the first connecting piece (61) is perpendicular to the length direction of the first pipe body (5) and is arranged at the adjacent position of the first rotating pipe (55) and the second rotating pipe (56), a connecting groove (611) capable of enabling the first baffle piece (62) to slide is formed in the first connecting piece (61), the first baffle piece (62) can slide to be blocked and is communicated with the first rotating pipe (55) and the second rotating pipe (56), and a control piece for controlling the first baffle piece (62) to slide is arranged on the second rotating pipe (56).

5. An anaerobic tank for wastewater treatment according to claim 4, wherein: the control piece comprises a first control column (563), an arc-shaped control groove (621) is formed in the first baffle plate (62), the first control column (563) is connected to the control groove (621) in a sliding mode, the first control column (563) is abutted to the inner wall of the first baffle plate (62) and can push the first baffle plate (62) to slide, a guide column (612) is arranged in the connecting groove (611) through the first connecting piece (61), a yielding groove (622) capable of enabling the guide column (612) to slide is formed in the first baffle plate (62), a first supporting rod (551) is arranged on the outer wall of the first rotating tube (55), a second supporting rod (562) is arranged on the outer wall of the second rotating tube (56), two grooves (53) are formed in the first tube body (5) in a circumferential direction in a penetrating mode, the grooves (53) are correspondingly formed in the first supporting rod (551) and the second supporting rod (562) in a penetrating mode, the grooves (53) are correspondingly formed in the connecting groove (611), and one end (613) is connected with the outer supporting rod (613).

6. An anaerobic tank for wastewater treatment according to claim 5, wherein: the second water-break component (72) comprises a second connecting sheet (721) and a second baffle (722), the second connecting sheet (721) and the second baffle (722) are identical in structure with the first connecting sheet (61) and the first baffle (62), a third supporting rod (712) is arranged on the outer wall of the third rotating tube (71), a single slotting (53) with identical structure is arranged on the second tube body (7), the third supporting rod (712) penetrates out of the slotting (53) and can slide in the slotting (53), and a second control column capable of sliding in the control slot (621) in the second baffle (722) is arranged at one end of the third supporting rod (712).

7. An anaerobic tank for wastewater treatment according to claim 6, wherein: still include three connecting rod (93) and control lever (9), control lever (9) include main shaft (91) and lug (92), main shaft (91) with first body (5) parallel arrangement, first body (5) with all be provided with backing sheet (54) on second body (7), control lever (9) both ends rotate respectively connect in corresponding in backing sheet (54), three connecting rod (93) one end rotate connect correspond first branch (551), second branch (562) with third branch (712), the other end all rotate connect in on lug (92).

8. An anaerobic tank for wastewater treatment according to claim 1, wherein: one end of the first pipe body (5) far away from the pump body (4) is provided with an input pipe (57) and an output pipe (58), the output pipe (58) is connected with a plurality of branch pipes (581) arrayed in a circumferential mode, and the input pipe (57) and the output pipe (58) are provided with switch valves (582).