CN114133105A

CN114133105A - Energy-saving sewage microbial membrane reactor treatment equipment and process thereof

Info

Publication number: CN114133105A
Application number: CN202111403700.1A
Authority: CN
Inventors: 刘鲁建; 刘卫勇
Original assignee: Shengzhou Junji Sewage Advanced Treatment Co ltd
Current assignee: Shengzhou Junji Sewage Advanced Treatment Co ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-03-04

Abstract

The invention discloses an energy-saving sewage microbial membrane reactor treatment device and a process thereof, and the energy-saving sewage microbial membrane reactor treatment device comprises a shell, wherein a first partition plate is fixedly arranged in the shell, one side of the first partition plate is fixedly provided with a plurality of second partition plates, the second partition plates divide the interior of the shell into a plurality of third cavities, one side of the shell is provided with a first water pump, the water outlet of the first water pump is connected with a first water pipe through a flange, one side of the first water pipe is fixedly provided with a plurality of second water pipes, one side of the shell is fixedly provided with a plurality of third water pipes, a liquid flow meter is connected between the second water pipe and the third water pipes through a flange, and the second water pipe is provided with a first electric valve. Control first electric valve and second electric valve according to fluidflowmeter's information through the control box, can add the medicine of adaptation according to quantitative sewage, effectively avoided the medicine extravagant, energy-concerving and environment-protective effect is better, has also reduced the sewage treatment cost simultaneously.

Description

Energy-saving sewage microbial membrane reactor treatment equipment and process thereof

Technical Field

The invention relates to the technical field of sewage treatment, in particular to energy-saving sewage microbial membrane reactor treatment equipment and a process thereof.

Background

The water resource is limited, so that the sewage treatment and recycling are effective measures for developing and utilizing the water resource, the sewage recycling is to use the urban sewage and the industrial sewage for non-drinking purposes such as greening, flushing, ornamental water body supplement and the like after the urban sewage and the industrial sewage are treated by a membrane bioreactor and the like, clean water is used for high-quality drinking applications, the water treatment technology is more and more mature along with the continuous improvement of science, and the membrane bioreactor is a novel water treatment technology combining a membrane separation unit and a biological treatment unit.

When sewage is treated, adaptive quantitative medicines are difficult to add according to the water quantity, if a fixed quantity of medicines is still added when the water discharge is low, a large quantity of medicine resources are wasted, the energy-saving and environment-friendly effects are poor, and the sewage treatment cost is increased.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides energy-saving sewage microbial membrane reactor treatment equipment and a process thereof, which solve the problems that when sewage is treated, adaptive quantitative medicines are difficult to add according to the water quantity, if a fixed quantity of medicines is still added when the water discharge quantity is small, a large quantity of medicine resources are wasted, the energy-saving and environment-friendly effects are poor, and the sewage treatment cost is increased.

In order to achieve the purpose, the invention adopts the following technical scheme:

the energy-saving sewage microbial membrane reactor treatment equipment comprises a shell, wherein a first partition plate is fixedly arranged in the shell, a plurality of second partition plates which are distributed up and down are fixedly arranged on one side of the first partition plate, the first partition plate and the second partition plate divide the interior of the shell into a first cavity, a second cavity and a plurality of third cavities, the second cavity and the third cavities are arranged on one side of the first cavity, the second cavity is arranged at the bottom of the third cavity, a stirring mechanism is arranged in the second cavity, and the stirring mechanism extends into the plurality of third cavities;

the improved water pump is characterized in that a first water pump is arranged on one side of the shell, a first water pump water outlet is connected with a first water pipe through a flange, a plurality of second water pipes are fixedly arranged on one side of the first water pipe, a plurality of third water pipes are fixedly arranged on one side of the shell, a liquid flow meter is connected between the second water pipes and the third water pipes through flanges, a first electric valve is arranged on the second water pipe, a first charging pipe is arranged on one side of the shell, a plurality of second charging pipes are fixedly arranged on one side of the first charging pipe, the second charging pipes are arranged on one side of the shell and extend to the inside of a third cavity, a second electric valve is arranged on the second charging pipes, and the second electric valve is arranged on one side of the shell.

Preferably, rabbling mechanism includes the bull stick, the bull stick is established inside the second cavity and is extended to inside the third cavity, the fixed a plurality of puddlers that are equipped with of bull stick outer end, it is a plurality of the puddler is established respectively inside a plurality of third cavities.

Preferably, a motor is fixedly arranged at the bottom end inside the second cavity, a second bevel gear is fixedly arranged at the outer end of the motor output shaft, a first bevel gear is fixedly arranged at the bottom end of the rotating rod, the first bevel gear is arranged inside the second cavity, the first bevel gear is arranged on one side of the second bevel gear, and the first bevel gear and the second bevel gear are meshed with each other.

Preferably, the outer end of the rotating rod is movably connected with the top ends of the second partition plates through sealing bearings, and the top end of the rotating rod is movably connected with the top end inside the shell through a bearing.

Preferably, a plurality of first drainpipes are fixedly arranged on the other side of the first partition board, the first drainpipes are arranged inside the first cavity body and are communicated with the inner parts of the third cavity bodies respectively, and third electric valves are arranged on the first drainpipes.

Preferably, the casing front side is fixed and is equipped with the control box, fluidflowmeter and control box input electric connection, first electric valve, second electric valve and third electric valve all with control box output electric connection.

Preferably, the second water pump is arranged on the other side of the shell, a fourth water pipe is connected to a water inlet of the second water pump through a flange, the fourth water pipe is arranged on the other side of the shell and extends into the first cavity, a fifth water pipe is connected to a water outlet of the second water pump through a flange, and a sixth water pipe is connected to a water inlet of the first water pump through a flange.

Preferably, first filling tube is established in third water pipe front side and is extended to third water bottom of the tubes portion, first filling tube external end is fixed and is equipped with two fixed blocks, the fixed block is established in third water pipe and second filling tube bottom, first filling tube is through two fixed block fixed connection in casing one side.

Preferably, the opening has been seted up on the casing top, the opening is established at first cavity top, there is the door plant casing front side through hinge swing joint, the door plant is established at second cavity front side, the control box is established at the door plant top, the casing rear side is fixed and is equipped with the second drain pipe, just the second drain pipe is linked together with first cavity is inside, be equipped with the valve on the second drain pipe.

The invention also provides a process of the energy-saving sewage microbial membrane reactor treatment equipment, which comprises the following specific steps:

the method comprises the following steps: the first water pump pumps the sewage into the first water pipe, then the sewage in the first water pipe enters the third cavities for chemical adding reaction, and the sewage in the first water pipe is guided into the third cavities and sequentially passes through the second water pipe, the liquid flow meter and the third water pipe;

step two: after the liquid flowmeter detects the flow of the sewage entering the interior of the third cavity, the flow is analyzed by the control box and the first electric valve is controlled to be closed, at the moment, the amount of the sewage in the interior of the third cavity is quantitative, then the control box controls the opening of the second electric valve, and at the moment, the medicine in the first feeding pipe enters the corresponding interior of the third cavity through the second feeding pipe to perform mixed reaction with the sewage;

step three: after a certain amount of sewage and a proper amount of medicine are stored in the third cavity, the motor is started, and the first bevel gear and the second bevel gear are always in a mutually meshed state, so that the rotating rod can be driven to rotate through the meshed rotation of the first bevel gear and the second bevel gear when the output shaft of the motor rotates, the stirring rod can be driven to rotate when the rotating rod rotates, the sewage and the medicine in the third cavity are stirred through the stirring rod, and the reaction speed is improved;

step four: after the reaction of the sewage in the third cavity and the chemicals is finished, the control box can control the third electric valve to open so that the sewage in the third cavity enters the first cavity through the first water drainage pipe, and during the reaction, the sewage after the chemical adding reaction in the first cavity can be pumped out to the next process through the fourth water pipe and the fifth water pipe by the second water pump.

Compared with the prior art, the invention has the beneficial effects that: this energy-saving sewage biofilm reactor treatment facility and technology, take out sewage to a plurality of third cavity insides through first water pump, during sewage passes through first water pipe in proper order, the second water pipe, fluidflowmeter and third water pipe, the control box can be controlled first electric valve and second electric valve according to fluidflowmeter's information, third cavity inside quantitative sewage and the medicine that suits the volume are stirred by rabbling mechanism this moment, can add the medicine of adaptation according to quantitative sewage, effectively avoided the medicine extravagant, energy-concerving and environment-protective effect is better, the sewage treatment cost has also been reduced simultaneously.

Drawings

FIG. 1 is a schematic view of an overall three-dimensional structure at a first perspective according to the present invention;

FIG. 2 is a schematic view of an overall three-dimensional structure at a second perspective according to the present invention;

FIG. 3 is a schematic perspective view of the internal structure of the housing according to the present invention;

FIG. 4 is a schematic view of a partially cut-away perspective structure of the present invention;

FIG. 5 is an enlarged perspective view of portion A of FIG. 2 according to the present invention;

FIG. 6 is an enlarged perspective view of the portion B of FIG. 3 according to the present invention; .

In the figure: the device comprises a shell 1, a first partition plate 2, a second partition plate 3, a first cavity 4, a second cavity 5, a third cavity 6, a first water pump 7, a first water pipe 8, a second water pipe 9, a third water pipe 10, a liquid flow meter 11, a first electric valve 12, a first charging pipe 13, a second charging pipe 14, a second electric valve 15, a fixed block 16, a first water discharge pipe 17, a third electric valve 18, a second water pump 19, a fourth water pipe 20, a fifth water pipe 21, a control box 22, a rotating rod 23, a stirring rod 24, a first bevel gear 25, a motor 26, a second bevel gear 27, a door plate 28, an opening 29, a second water discharge pipe 30 and a sixth water pipe 31.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1-6, the energy-saving sewage microbial membrane reactor treatment equipment comprises a shell 1, wherein a first partition plate 2 is fixedly arranged inside the shell 1, a plurality of second partition plates 3 which are distributed up and down are fixedly arranged on one side of the first partition plate 2, the first partition plate 2 and the second partition plates 3 divide the interior of the shell 1 into a first cavity 4, a second cavity 5 and a plurality of third cavities 6, the plurality of third cavities 6 can treat a large amount of sewage simultaneously, the second cavity 5 and the third cavities 6 are both arranged on one side of the first cavity 4, the second cavity 5 is arranged at the bottom of the third cavities 6, a stirring mechanism is arranged inside the second cavity 5, and the stirring mechanism extends into the plurality of third cavities 6;

a first water pump 7 is arranged on one side of the shell 1, a water outlet of the first water pump 7 is connected with a first water pipe 8 through a flange, a plurality of second water pipes 9 are fixedly arranged on one side of the first water pipe 8, a plurality of third water pipes 10 are fixedly arranged on one side of the shell 1, a liquid flowmeter 11 is connected between the second water pipe 9 and the third water pipe 10 through a flange, the liquid flowmeter 11 can monitor the sewage flow in time so as to be convenient for adding a proper amount of medicine into quantitative sewage in the follow-up process, a first electric valve 12 is arranged on the second water pipe 9, a first feeding pipe 13 is arranged on one side of the shell 1, a plurality of second feed pipes 14 are fixedly arranged on one side of the first feed pipe 13, the second feed pipes 14 are arranged on one side of the shell 1 and extend to the inside of the third cavity 6, and a second electric valve 15 is arranged on the second feeding pipe 14, and the second electric valve 15 is arranged on one side of the shell 1.

Rabbling mechanism includes bull stick 23, bull stick 23 is established inside second cavity 5 and is extended to inside the

third cavity

6, 23 fixed being equipped with a plurality of puddlers 24 in the outer end of bull stick, it is a plurality of puddler 24 is established respectively inside a plurality of third cavities 6, and rabbling mechanism can stir the inside sewage of third cavity 6 and medicine, improves sewage treatment speed.

The bottom end of the interior of the second cavity 5 is fixedly provided with a motor 26, the outer end of an output shaft of the motor 26 is fixedly provided with a second bevel gear 27, the bottom end of the rotating rod 23 is fixedly provided with a first bevel gear 25, the first bevel gear 25 is arranged inside the second cavity 5, the first bevel gear 25 is arranged on one side of the second bevel gear 27, the first bevel gear 25 is meshed with the second bevel gear 27, the motor 26 can provide power for the stirring mechanism, and the first bevel gear 25 and the second bevel gear 27 play a role in power transmission.

23 outer ends of the rotating rod are movably connected with the top ends of the second partition plates 3 through sealing bearings, the top ends of the rotating rod 23 are movably connected with the top end inside the shell 1 through bearings, the rotating rod 23 is not influenced to rotate by the connection of the sealing bearings, and the sealing effect is good.

The fixed a plurality of first calandria 17 that are equipped with of 2 opposite sides of first division board, first calandria 17 is established inside first cavity 4, and is a plurality of first calandria 17 and a plurality of third water pipe 10 are linked together with a plurality of third cavity 6 are inside respectively, be equipped with third electric valve 18 on the first calandria 17, first calandria 17 can be with the leading-in first cavity 4 inside of the sewage that the reaction of third cavity 6 is good.

The fixed control box 22 that is equipped with of casing 1 front side, fluidflowmeter 11 and control box 22 input electric connection, first electric valve 12, second electric valve 15 and third electric valve 18 all with control box 22 output electric connection, control box 22 can be according to the information of fluidflowmeter 11 transmission and then control first electric valve 12, second electric valve 15 and third electric valve 18 and open and close.

The opposite side of the shell 1 is provided with a second water pump 19, a water inlet of the second water pump 19 is connected with a fourth water pipe 20 through a flange, the fourth water pipe 20 is arranged on the opposite side of the shell 1 and extends into the first cavity 4, a water outlet of the second water pump 19 is connected with a fifth water pipe 21 through a flange, a water inlet of the first water pump 7 is connected with a sixth water pipe 31 through a flange, and the second water pump 19 can pump the sewage in the first cavity 4 to the next process for treatment.

First filling tube 13 is established in third water pipe 10 front side and is extended to third water pipe 10 bottom, first filling tube 13 outer end is fixed and is equipped with two fixed blocks 16, fixed block 16 is established in third water pipe 10 and second filling tube 14 bottom, first filling tube 13 is through two fixed block 16 fixed connection in casing 1 one side, and fixed block 16 has played the fixed action, has improved the stability and the fastness of first filling tube 13.

Opening 29 has been seted up on 1 top of casing, opening 29 is established at first cavity 4 top, there is door plant 28 casing 1 front side through hinge swing joint, door plant 28 establishes in second cavity 5 front side, control box 22 establishes at door plant 28 top, the fixed second drain pipe 30 that is equipped with in 1 rear side of casing, just second drain pipe 30 is linked together with first cavity 4 is inside, be equipped with the valve on the second drain pipe 30, opening 29 conveniently washs first cavity 4 is inside, and second drain pipe 30 makes things convenient for the sewage discharge after the inside washing of first cavity 4, thereby door plant 28 can be opened and is convenient for maintain second cavity 5 inside motor 26.

When in use: the sewage is pumped into the first water pipe 8 by the first water pump 7, then the sewage inside the first water pipe 8 enters the plurality of third cavities 6 for chemical adding reaction, when the sewage inside the first water pipe 8 is guided into the third cavities 6, the sewage sequentially passes through the second water pipe 9, the liquid flow meter 11 and the third water pipe 10, after the liquid flow meter 11 detects the flow of the sewage entering the third cavities 6, the first electric valve 12 is analyzed and controlled to be closed by the control box 22, at this time, the sewage amount inside the third cavities 6 is quantitative, then the control box 22 controls to open the second electric valve 15, at this time, the chemicals inside the first feeding pipe 13 enters the corresponding third cavities 6 through the second feeding pipe 14 to carry out mixing reaction with the sewage, after the quantitative sewage and the appropriate chemicals are stored inside the third cavities 6, the motor 26 is started, because the first bevel gear 25 and the second bevel gear 27 are always in a mutually meshed state, therefore, when the output shaft of the motor 26 rotates, the rotating rod 23 can be driven to rotate through the meshing rotation of the first bevel gear 25 and the second bevel gear 27, when the rotating rod 23 rotates, the stirring rod 24 can be driven to rotate, the sewage and the medicine inside the third cavity 6 can be stirred through the stirring rod 24, the reaction speed is increased, after the reaction of the sewage and the medicine inside the third cavity 6 is finished, the control box 22 can control the third electric valve 18 to be opened, so that the sewage inside the third cavity 6 enters the first cavity 4 through the first water discharge pipe 17, and during the reaction, the sewage after the medicine adding reaction inside the first cavity 4 can be pumped out to the next process through the fourth water pipe 20 and the fifth water pipe 21 by the second water pump 19.

To sum up, the energy-saving sewage microbial membrane reactor treatment equipment pumps sewage into a plurality of third cavities 6 through a first water pump 7, the sewage passes through a first water pipe 8, a second water pipe 9, a liquid flow meter 11 and a third water pipe 10 in sequence during the period, a control box 22 can control a first electric valve 12 and a second electric valve 15 according to the information of the liquid flow meter 11, at the moment, quantitative sewage and appropriate amount of medicine in the third cavities 6 are stirred by a stirring mechanism, and appropriate amount of medicine can be added according to the quantitative sewage, so that medicine waste is effectively avoided, the energy-saving and environment-friendly effects are good, the sewage treatment cost is reduced, the problem that when sewage is treated, appropriate amount of medicine is difficult to be added according to water amount is solved, if fixed amount of medicine is still added when the water amount is small, a large amount of medicine resources can be wasted, the energy-saving and environment-friendly effects are poor is solved, and simultaneously, the cost of sewage treatment is increased.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The energy-saving sewage microbial membrane reactor treatment equipment comprises a shell (1) and is characterized in that a first partition plate (2) is fixedly arranged inside the shell (1), a plurality of second partition plates (3) which are distributed up and down are fixedly arranged on one side of the first partition plate (2), the first partition plate (2) and the second partition plates (3) divide the interior of the shell (1) into a first cavity (4), a second cavity (5) and a plurality of third cavities (6), the second cavity (5) and the third cavities (6) are both arranged on one side of the first cavity (4), the second cavity (5) is arranged at the bottom of the third cavities (6), a stirring mechanism is arranged inside the second cavity (5), and the stirring mechanism extends into the plurality of third cavities (6);

a first water pump (7) is arranged on one side of the shell (1), a water outlet of the first water pump (7) is connected with a first water pipe (8) through a flange, a plurality of second water pipes (9) are fixedly arranged on one side of the first water pipe (8), a plurality of third water pipes (10) are fixedly arranged on one side of the shell (1), a liquid flowmeter (11) is connected between the second water pipe (9) and the third water pipe (10) through a flange, a first electric valve (12) is arranged on the second water pipe (9), a first feeding pipe (13) is arranged on one side of the shell (1), a plurality of second feed pipes (14) are fixedly arranged on one side of the first feed pipe (13), the second feeding pipe (14) is arranged at one side of the shell (1) and extends to the inside of the third cavity (6), and a second electric valve (15) is arranged on the second feeding pipe (14), and the second electric valve (15) is arranged on one side of the shell (1).

2. The energy-saving sewage microbial membrane reactor treatment device according to claim 1, wherein the stirring mechanism comprises a rotating rod (23), the rotating rod (23) is arranged inside the second cavity (5) and extends to the inside of the third cavity (6), a plurality of stirring rods (24) are fixedly arranged at the outer end of the rotating rod (23), and the plurality of stirring rods (24) are respectively arranged inside the plurality of third cavities (6).

3. The energy-saving sewage microbial membrane reactor treatment equipment according to claim 2, wherein a motor (26) is fixedly arranged at the bottom end inside the second cavity (5), a second bevel gear (27) is fixedly arranged at the outer end of an output shaft of the motor (26), a first bevel gear (25) is fixedly arranged at the bottom end of the rotating rod (23), the first bevel gear (25) is arranged inside the second cavity (5), the first bevel gear (25) is arranged at one side of the second bevel gear (27), and the first bevel gear (25) and the second bevel gear (27) are meshed with each other.

4. The energy-saving sewage microbial membrane reactor treatment plant according to claim 2, wherein the outer ends of the turning rods (23) are movably connected with the top ends of the plurality of second partition plates (3) through sealed bearings, and the top ends of the turning rods (23) are movably connected with the top end inside the housing (1) through bearings.

5. The energy-saving sewage microbial membrane reactor treatment equipment according to claim 1, wherein a plurality of first drainage pipes (17) are fixedly arranged on the other side of the first partition plate (2), the first drainage pipes (17) are arranged inside the first cavity (4), the plurality of first drainage pipes (17) and the plurality of third drainage pipes (10) are respectively communicated with the inside of the plurality of third cavities (6), and a third electric valve (18) is arranged on each first drainage pipe (17).

6. The energy-saving sewage microbial membrane reactor treatment equipment according to claim 5, wherein a control box (22) is fixedly arranged on the front side of the shell (1), the liquid flow meter (11) is electrically connected with the input end of the control box (22), and the first electric valve (12), the second electric valve (15) and the third electric valve (18) are electrically connected with the output end of the control box (22).

7. The energy-saving sewage microbial membrane reactor treatment equipment according to claim 1, wherein a second water pump (19) is arranged at the other side of the shell (1), a fourth water pipe (20) is connected to a water inlet of the second water pump (19) through a flange, the fourth water pipe (20) is arranged at the other side of the shell (1) and extends to the inside of the first cavity (4), a fifth water pipe (21) is connected to a water outlet of the second water pump (19) through a flange, and a sixth water pipe (31) is connected to a water inlet of the first water pump (7) through a flange.

8. The energy-saving sewage microbial membrane reactor treatment equipment according to claim 1, wherein the first feeding pipe (13) is arranged at the front side of the third water pipe (10) and extends to the bottom of the third water pipe (10), two fixing blocks (16) are fixedly arranged at the outer end of the first feeding pipe (13), the fixing blocks (16) are arranged at the bottom of the third water pipe (10) and the second feeding pipe (14), and the first feeding pipe (13) is fixedly connected to one side of the shell (1) through the two fixing blocks (16).

9. The energy-saving sewage microbial membrane reactor treatment equipment according to claim 1, wherein an opening (29) is formed in the top end of the shell (1), the opening (29) is formed in the top of the first cavity (4), a door plate (28) is movably connected to the front side of the shell (1) through a hinge, the door plate (28) is formed in the front side of the second cavity (5), the control box (22) is formed in the top of the door plate (28), a second water discharge pipe (30) is fixedly arranged on the rear side of the shell (1), the second water discharge pipe (30) is communicated with the inside of the first cavity (4), and a valve is arranged on the second water discharge pipe (30).

10. The process of an energy efficient wastewater microbial membrane reactor treatment facility of any of claims 1-9, comprising the specific steps of:

the method comprises the following steps: the first water pump (7) pumps the sewage into the first water pipe (8), then the sewage in the first water pipe (8) enters the plurality of third cavities (6) for chemical adding reaction, and when the sewage in the first water pipe (8) is guided into the third cavities (6), the sewage needs to sequentially pass through the second water pipe (9), the liquid flow meter (11) and the third water pipe (10);

step two: after the liquid flow meter (11) detects the flow of sewage entering the inside of the third cavity (6), the flow is analyzed by the control box (22) and the first electric valve (12) is controlled to be closed, at the moment, the sewage amount inside the third cavity (6) is quantitative, then the control box (22) controls the second electric valve (15) to be opened, at the moment, the medicine inside the first feeding pipe (13) enters the corresponding inside of the third cavity (6) through the second feeding pipe (14) to be mixed and reacted with the sewage;

step three: after a certain amount of sewage and a proper amount of medicine are stored in the third cavity (6), the motor (26) is started, and the first bevel gear (25) and the second bevel gear (27) are always in a mutually meshed state, so that the rotating rod (23) can be driven to rotate through the meshed rotation of the first bevel gear (25) and the second bevel gear (27) when the output shaft of the motor (26) rotates, the rotating rod (23) can drive the stirring rod (24) to rotate when rotating, the sewage and the medicine in the third cavity (6) can be stirred through the stirring rod (24), and the reaction speed is improved;

step four: after the reaction of the sewage in the third cavity (6) and the chemicals is finished, the control box (22) can control the third electric valve (18) to open so that the sewage in the third cavity (6) enters the first cavity (4) through the first water discharge pipe (17), and the second water pump (19) can pump the sewage after the chemical adding reaction in the first cavity (4) to the next process through the fourth water pipe (20) and the fifth water pipe (21).