CN113213604A

CN113213604A - Sewage treatment system

Info

Publication number: CN113213604A
Application number: CN202110514877.2A
Authority: CN
Inventors: 张亚欣; 吕忠杰
Original assignee: Individual
Current assignee: Huizhou Jinmaoyuan Environmental Protection Technology Co ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2021-08-06
Anticipated expiration: 2041-05-12
Also published as: CN113213604B

Abstract

The invention discloses a sewage treatment system which comprises a sedimentation tank body, wherein a mixing chamber is arranged on one side of the sedimentation tank body, a rotating mechanism is arranged in the sedimentation tank body, a medicine storage box is arranged in the mixing chamber, a medicine control assembly is arranged between the medicine storage box and the mixing chamber, and a mixing assembly is arranged on the inner side of the mixing chamber. The sewage volume that gets into the mixing chamber is judged out through flow detection meter detection flow, the density in the mobile sewage of infrared detection head through detecting, judge the impurity content in the sewage, the cooperation detects out quantity and the impurity content who lets in the indoor sewage of mixing through intelligent detection, and then can add the medicament according to the data that detect out, then the flow control valve in the accuse medicine subassembly detects the back at flow detection meter and infrared detection head to sewage, the medicament outflow of control explosive box, and then can the use of intelligent control medicament, avoid the medicament to use too much and cause the waste, it is not good to use too little sewage flocculation effect.

Description

Sewage treatment system

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment system.

Background

In the sewage treatment, the chemical addition (generally, flocculant and coagulant aid) flocculation and precipitation are needed: pumping sewage into a sedimentation tank, adding a medicine to mix with the sewage, then standing for sedimentation, wherein a large amount of time is required for mixing the sewage with the medicine in the process, so that the medicine is fully utilized, and the time is required for waiting for standing for sedimentation.

In the sewage treatment process, the treatment cannot be carried out synchronously with other treatment flows, and precipitates are generated after flocculation precipitation; the time is saved, which can lead to the flocculation time of the medicine and reduce the flocculation effect, so that the time can be further saved by changing the flocculation process and quickening the flocculation time; in the flocculation treatment, the existing method for removing the flocculated sediments is to clean flocculates after the flocculates are generated for a little time, and the flocculates are accumulated at the bottom of the sedimentation tank in a large quantity to influence the decontamination effect, so the treatment of the flocculates also influences the sewage treatment effect.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a sewage treatment system which has the advantages of quick mixing of a flocculating agent and sewage, short time of a flocculation process, good flocculation effect, timely treatment of flocculate and the like, and solves the problems that the mixing time of the flocculating agent and the sewage is long, the good flocculation effect can be achieved only by long-time flocculation, and the decontamination effect is influenced because a large amount of flocculate is accumulated at the bottom of a sedimentation tank.

(II) technical scheme

In order to solve the technical problems that the flocculation reagent and the sewage are mixed for a long time, a good flocculation effect can be achieved only by long-time flocculation, and a large amount of flocculation reagent is accumulated at the bottom of a sedimentation tank to influence the decontamination effect, the invention provides the following technical scheme: a sewage treatment system comprises a sedimentation tank body, wherein a mixing chamber is arranged on one side of the sedimentation tank body, a rotating mechanism is arranged in the sedimentation tank body, a medicine storage box is arranged in the mixing chamber, a medicine control assembly is arranged between the medicine storage box and the mixing chamber, and a mixing assembly is arranged on the inner side of the mixing chamber; sewage pours into earlier in the mixing chamber, makes simultaneously through accuse medicine subassembly the medicament in the explosive box pours into together in the mixing chamber, accuse medicine subassembly is used for controlling the medicament addition according to the sewage volume for sewage and medicament carry out preliminary mixing through mixing the subassembly, and the leading-in sedimentation tank body carries out flocculation treatment again, rotary mechanism is used for strengthening sedimentation tank body flocculation effect.

Preferably, a water inlet is formed in one side of the mixing chamber, a flow detector is arranged between the mixing chamber and the water inlet, an infrared detector head is arranged in the flow detector and used for detecting the density of sewage flowing through the mixing chamber, and a water inlet pipe is connected to the inner side of the mixing chamber of the flow detector; the inlet tube sets up in mixing chamber one side top, can produce great impact force behind the inlet tube leaded water.

Preferably, the medicine control assembly comprises a flow control valve, the flow control valve is controlled on one side of a connecting pipe between the medicine storage box and the mixing chamber, and the flow control valve is matched with the flow detection meter and the infrared detection head to detect the flow and the density of sewage and control the outflow of the medicine storage box.

Preferably, the mixing assembly includes first gyro wheel board, first gyro wheel board both sides with the mixing chamber rotates to be connected, first gyro wheel board one side is provided with first gear, first gyro wheel board bottom is provided with the second gyro wheel board, second gyro wheel board one side through the second gear with first gear engagement, the inlet tube slope of mixing chamber top sets up downwards for the delivery port of inlet tube is just right first gyro wheel board one side.

Preferably, an annular barrel is arranged in the middle of the inner cavity of the sedimentation tank body, a guide plate is arranged at the bottom of the annular barrel, the rotating mechanism is positioned in the annular barrel, a communication hole is formed in the middle of one side of the mixing chamber close to the sedimentation tank body, one side of the bottom of the guide plate close to the mixing chamber is communicated with the sedimentation tank body, and a first filter plate is arranged on the other side of the guide plate; the intercommunicating pore setting between mixing chamber and the sedimentation tank body is located between second gyro wheel board and the first gyro wheel board at the mixing chamber inboard for the second gyro wheel board can stir sewage in aqueous.

Preferably, the screw mechanism comprises a poke rod and a first motor for driving the poke rod, the first motor is arranged above the sedimentation tank body, the first motor is connected with the poke rod through a rotating shaft, the poke rod is positioned on the middle upper part of the annular barrel, and the poke rod drives sewage in the annular barrel to rotate after rotating and generates water vortexes.

Preferably, sedimentation tank body top is provided with the toper bottom of the bucket that is used for gathering together sewage, toper bottom of the bucket bottom is provided with the go-between, the go-between bottom is provided with the auger delivery who is used for separating flocculate and water, keep away from at the toper bottom of the bucket one side of mixing chamber with the first filter plate of guide plate bottom is connected, the sedimentation tank body is located the opposite side of first filter plate is provided with the clean water chamber.

Preferably, conveyor includes spiral auger and delivery barrel, delivery barrel one side upper surface with go-between through connection, spiral auger with the setting is hugged closely mutually to the delivery barrel inner wall, the tail end of delivery barrel is provided with compression passage, the 24 ends in compression passage export are provided with movable compression board.

Preferably, spiral auger one side is provided with the second motor, be provided with the filtration pore on the spiral auger, the transfer ladle top is provided with the intercommunication room, the intercommunication room with clean water room intercommunication, clean water room top one side is provided with the wash port.

(III) advantageous effects

Compared with the prior art, the invention provides a sewage treatment system, which has the following beneficial effects:

1. this sewage treatment system, flow detection meter and infrared detection head through mixing chamber water inlet setting, before sewage gets into the mixing chamber, carry out flow and density detection to the intaking of mixing chamber, judge the sewage volume that gets into the mixing chamber through flow detection meter detection flow, infrared detection head is through detecting the density in the mobile sewage, judge the impurity content in the sewage, the cooperation detects the quantity and the impurity content that let in sewage in the mixing chamber through intelligent detection, and then can add the medicament according to the data that detect out, then flow control valve in the accuse medicine subassembly detects the back at flow detection meter and infrared detection head to sewage, the medicament outflow of control explosive storage box, and then can the use of intelligent control medicament, avoid the medicament to use too much to cause the waste, it is not good to use too little sewage flocculation effect.

2. This sewage treatment system, through two sets of gyro wheel boards that set up in the mixing chamber, when sewage gets into the mixing chamber, utilize sewage behind the leading-in mixing chamber of sewage through the inlet tube that sets up in mixing chamber one side top, sewage striking one side of first gyro wheel board, make first gyro wheel board rotate, and then drive first gear, make first gear drive second gyro wheel board through the second gear with it meshing rotate, when second gyro wheel board rotates, mix the sewage in the mixing chamber, accelerate its mixture, so as to reach the flocculation effect fast, reduce the flocculation time, realize the smoothness nature of sewage treatment flow.

3. This sewage treatment system, intercommunicating pore through mixing chamber one side setting, it is originally internal to lead to the sedimentation tank at the leading-in sedimentation tank of sewage after the mixing chamber mixes completely, the annular bucket that this internal setting of sedimentation tank and the guide plate that the bottom set up, make upper portion form a cylindrical inner chamber in the sedimentation tank body inner chamber, so that screw mechanism rotates in annular bucket, and then make the better water vortex that forms of sewage in the annular bucket, and the guide plate of annular bottom of the barrel can carry out the water conservancy diversion from the leading-in sewage of intercommunicating pore, the impact force that produces when avoiding sewage to pour into, the flocculate of avoiding annular bottom of the barrel portion is broken away by the dashing.

4. This sewage treatment system, it rotates to drive the poker rod through the first motor cooperation pivot in the screw mechanism, and then the poker rod drives the sewage in the annular bucket and rotates and produce the water vortex, the water vortex is produced the back, its central zone pressure is less than the pressure in the water vortex outside, and then make the flocculation thing of producing in the sewage concentrate at the water vortex middle part and bottom, so that the better concentration of flocculation thing, and realize the layering of water and flocculation thing, and under the effect at the toper bottom of the barrel, concentrate sewage and flocculation thing at the toper bottom of the barrel, and be located the go-between top, the first filter plate of keeping away from mixing chamber one side through annular bottom of the barrel carries out filtration treatment to this internal sewage of sedimentation tank, make first filter plate opposite side become the clean water chamber.

5. This sewage treatment system, spiral auger through the second motor drive conveyor is to the internal flocculate of link ring and sewage carry to the transfer ladle together, and wherein water filters out from spiral auger and the filtration pore that sets up above the transfer ladle during the transport, and solid such as flocculate is stayed and is compressed in the compression passageway, and its inside moisture filters out through the filtration pore, and the flocculate continues to compress.

6. This sewage treatment system, the activity compression board of compression passage afterbody is in hugging closely the compression passage export when compressing, floc compression is after the certain degree in the compression passage, inside the floc is full of the compression passage completely, form the syringe principle, floc after the compression plugs up the compression passage promptly, make water unable discharge from the compression passage export, compression floc continues to increase in the compression passage this moment, and promote the floc to remove to activity compression board, outwards extrude activity compression board, form the gap between activity compression board and the compression passage, so that the discharge of floc, realize that the floc can be along with carving at any time and get cleared up out, avoid the floc to pile up in a large number in the sedimentation tank bottom, influence the scrubbing effect.

Drawings

FIG. 1 is a schematic overall perspective view of the present invention;

FIG. 2 is a schematic view of the overall internal cross-sectional plan structure of the present invention;

FIG. 3 is a schematic view of the overall internal cross-sectional perspective of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3A;

FIG. 5 is an enlarged view of a portion of FIG. 3B;

FIG. 6 is a schematic view of the internal cross-sectional perspective structure of the mixing chamber portion of the present invention;

fig. 7 is a schematic side sectional perspective view of a mixing chamber portion of the present invention.

In the figure: 1. a sedimentation tank body; 2. a mixing chamber; 3. a medicine storage box; 4. a flow detector; 5. an infrared detector head; 6. a water inlet pipe; 7. a flow control valve; 8. a connecting pipe; 9. a first roller plate; 10. a first gear; 11. a second roller plate; 12. a second gear; 13. an annular barrel; 14. a baffle; 15. a communicating hole; 16. a first filter plate; 17. a poke rod; 18. a first motor; 19. a rotating shaft; 20. a conical barrel bottom; 21. a connecting ring; 22. a spiral auger; 23. a conveying barrel; 24. compressing the channel; 25. a second motor; 26. filtering holes; 27. a communicating chamber; 28. a water purifying chamber; 29. a drain hole; 30. a movable compression plate.

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.

Referring to fig. 1-7, a sewage treatment system comprises a sedimentation tank body 1, a mixing chamber 2 is arranged on one side of the sedimentation tank body 1, a rotating mechanism is arranged in the sedimentation tank body 1, a medicine storage box 3 is arranged in the mixing chamber 2, a medicine control assembly is arranged between the medicine storage box 3 and the mixing chamber 2, and a mixing assembly is arranged on the inner side of the mixing chamber 2; in sewage pours into mixing chamber 2 earlier, during simultaneously making the medicament in the explosive box 3 pour into mixing chamber 2 into together through accuse medicine subassembly, accuse medicine subassembly is used for controlling the medicament addition according to the sewage volume for sewage and medicament carry out preliminary mixing through mixing assembly, carry out flocculation treatment in the leading-in sedimentation tank body 1 again, rotary mechanism is used for strengthening sedimentation tank body 1 flocculation effect.

Further, 2 one sides of mixing chamber are provided with the water inlet, be provided with flow detection meter 4 between mixing chamber 2 and the water inlet, flow detection meter 4 is inside to be provided with infrared detecting head 5, infrared detecting head 5 is used for detecting the density that flows through sewage, flow detection meter 4 is located 2 inboard connections of mixing chamber and is had inlet tube 6, utilize and set up flow detection meter 4 and set up infrared detecting head 5 at its inside in mixing chamber 2 water inlet department, carry out flow and density detection to the intaking of mixing chamber 2, the sewage volume that gets into mixing chamber 2 is judged out through flow detection meter 4 detection flow, infrared detecting head 5 is through detecting the density in the flowing sewage, judge the impurity content in the sewage, the cooperation detects the quantity and the impurity content of the sewage that lets in mixing chamber 2 through intellectual detection, and then can add the medicament according to the data that detect out.

Further, accuse medicine subassembly includes flow control valve 7, flow control valve 7 control is in connecting pipe 8 one side between explosive box 3 and mixing chamber 2, flow control valve 7 cooperation flow detection meter 4 and infrared detection head 5 detect out the flow and the density of sewage, the outflow of control explosive box 3, utilize flow control valve 7 in the accuse medicine subassembly to detect the back at flow detection meter 4 and infrared detection head 5 to sewage, the medicament outflow of control explosive box 3, and then can the use of intelligent control medicament, avoid the medicament to use too much and cause the waste, it is not good to use too little sewage flocculation effect.

Furthermore, the mixing assembly comprises a first roller plate 9, two sides of the first roller plate 9 are rotatably connected with the mixing chamber 2, one side of the first roller plate 9 is provided with a first gear 10, the bottom of the first roller plate 9 is provided with a second roller plate 11, one side of the second roller plate 11 is meshed with the first gear 10 through a second gear 12, the water inlet pipe 6 above the mixing chamber 2 is obliquely and downwards arranged, so that the water outlet of the water inlet pipe 6 is opposite to one side of the first roller plate 9, after sewage is guided into the mixing chamber 2 through the water inlet pipe 6 arranged above one side of the mixing chamber 2, the sewage impacts one side of the first roller plate 9 to rotate the first roller plate 9 and further drive the first gear 10, so that the first gear 10 drives the second roller plate 11 to rotate through the second gear 12 meshed with the first gear 10, when the second roller plate 11 rotates, the sewage in the mixing chamber 2 is stirred to accelerate the mixing thereof, so as to quickly achieve the flocculation effect.

Further, 1 inner chamber middle part of sedimentation tank body is provided with annular bucket 13, annular bucket 13 bottom is provided with guide plate 14, rotary mechanism is located inside annular bucket 13, one side middle part that mixing chamber 2 is close to sedimentation tank body 1 is provided with intercommunicating pore 15, one side that guide plate 14 bottom is close to mixing chamber 2 link up the setting with sedimentation tank body 1, guide plate 14 opposite side is provided with first filter plate 16, utilize annular bucket 13 that sets up in sedimentation tank body 1 and the guide plate 14 that the bottom set up, make 1 inner chamber middle and upper portion of sedimentation tank body form a cylindrical inner chamber, so that screw mechanism rotates in annular bucket 13, and then make the better formation water vortex of sewage in the annular bucket 13.

Further, the screw mechanism comprises a poke rod 17 and a first motor 18 for driving the poke rod 17, the first motor 18 is arranged above the sedimentation tank body 1, the first motor 18 is connected with the poke rod 17 through a rotating shaft 19, the poke rod 17 is arranged at the middle upper part of the annular barrel 13, the poke rod 17 drives the sewage in the annular barrel 13 to rotate after rotating and generate water vortexes, the first motor 18 in the screw mechanism drives the poke rod 17 to rotate through the rotating shaft 19, and then the poke rod 17 drives the sewage in the annular barrel 13 to rotate and generate the water vortexes, after the water vortexes are generated, the central area pressure is lower than the pressure outside the water vortexes, and then flocs generated in the sewage are concentrated at the middle part and the bottom of the water vortexes, so that the flocs are better concentrated, and the layering of water and the flocs is realized.

Further, the top of the sedimentation tank body 1 is provided with a conical barrel bottom 20 for gathering together sewage, the bottom of the conical barrel bottom 20 is provided with a connecting ring 21, the bottom of the connecting ring 21 is provided with a spiral conveying device for separating flocculates and water, one side of the conical barrel bottom 20 far away from the mixing chamber 2 is connected with the first filter plate 16 at the bottom of the guide plate 14, the other side of the sedimentation tank body 1, which is located at the first filter plate 16, is provided with a purified water chamber 28, the conical barrel bottom 20 can concentrate the sewage and the flocculates at the conical barrel bottom 20 and is located above the connecting ring 21, the first filter plate 16, which is far away from one side of the mixing chamber 2, at the bottom of the annular barrel 13, is used for filtering the sewage in the sedimentation tank body 1, and the other side of the first filter plate 16 becomes the purified water chamber 28.

Further, the conveying device comprises a spiral auger 22 and a conveying barrel 23, the upper surface of one side of the conveying barrel 23 is communicated with the connecting ring 21, the spiral auger 22 is closely attached to the inner wall of the conveying barrel 23, a compression channel 24 is arranged at the tail end of the conveying barrel 23, a movable compression plate 30 is arranged at the outlet end of the compression channel 24, flocs and sewage in the connecting ring 21 are conveyed into the conveying barrel 23 by using the spiral auger 22 in the conveying device, water is filtered out from filter holes 26 arranged on the spiral auger 22 and above the conveying barrel 23 during conveying, and the solids such as the flocs are left in the compression channel 24 to be compressed.

Furthermore, a second motor 25 is arranged at one side of the spiral auger 22, a filtering hole 26 is arranged on the spiral auger 22, a communicating chamber 27 is arranged above the conveying barrel 23, the communicating chamber 27 is communicated with the purified water chamber 28, a water discharging hole 29 is arranged at one side above the purified water chamber 28, the spiral auger 22 is driven to rotate by the second motor 25, then the spiral auger 22 conveys water and flocculate to the compression channel 24 in the conveying barrel 23, then the flocculate is compressed in the compression channel 24, the water in the flocculate is filtered out through the filtering hole 26, the flocculate is compressed continuously, a movable compression plate 30 at the tail part of the compression channel 24 is positioned close to the outlet of the compression channel 24 during compression, when the flocculate in the compression channel 24 is compressed to a certain degree, the flocculate is completely filled in the compression channel 24 to form an injector principle, namely, the compressed flocculate blocks the compression channel 24, so that the water cannot be discharged from the outlet 24 of the compression channel, at this time, the compressed flocs in the compression passage 24 continue to increase and push the flocs to move toward the movable compression plate 30, so that the movable compression plate 30 is extruded outwards, and a gap is formed between the movable compression plate 30 and the compression passage 24, so that the flocs can be discharged.

The working principle is as follows: when in use, sewage is guided into the mixing chamber 2 from the position of the flow detector 4 of the mixing chamber 2, before the sewage enters the mixing chamber 2, the flow detector 4 is arranged at the water inlet of the mixing chamber 2 and the infrared detector head 5 is arranged in the mixing chamber, the flow and density of the inlet water of the mixing chamber 2 are detected, the amount of the sewage entering the mixing chamber 2 is judged by detecting the flow through the flow detector 4, the infrared detector head 5 judges the impurity content in the sewage by detecting the density of the flowing sewage, the amount and the impurity content of the sewage entering the mixing chamber 2 are intelligently detected by matching with the intelligent detection, then the medicine can be added according to the detected data, then the flow control valve 7 in the medicine control component controls the medicine outflow amount of the medicine storage box 3 after the sewage is detected through the flow detector 4 and the infrared detector head 5, and then the use of the medicine can be intelligently controlled, avoid the waste caused by too much medicament and poor flocculation effect of sewage caused by too little medicament.

When sewage gets into mixing chamber 2, utilize sewage behind leading-in mixing chamber 2 of sewage through the inlet tube 6 that sets up in mixing chamber 2 one side top, sewage striking first roller board 9 one side, make first roller board 9 rotate, and then drive first gear 10, make first gear 10 drive second roller board 11 through second gear 12 with it meshing and rotate, when second roller board 11 rotates, stir the sewage in mixing chamber 2, accelerate its mixture, so as to reach the flocculation effect fast.

Then sewage is behind mixing chamber 2 intensive mixing, in the leading-in sedimentation tank body 1 of intercommunicating pore 15 through the setting of mixing chamber 2 one side, annular bucket 13 and the guide plate 14 that the bottom set up that set up in sedimentation tank body 1, make sedimentation tank body 1 inner chamber middle and upper portion form a cylindrical inner chamber, so that screw mechanism rotates in annular bucket 13, and then make the sewage in annular bucket 13 better form the water vortex, and guide plate 14 of annular bucket 13 bottom can carry out the water conservancy diversion from the leading-in sewage of intercommunicating pore 15, the impact force that produces when avoiding sewage to pour, the flocculation thing of avoiding annular bucket 13 bottom is broken away by the dashing.

Then the first motor 18 is started, the first motor 18 in the screw mechanism is matched with the rotating shaft 19 to drive the poke rod 17 to rotate, the poke rod 17 drives the sewage in the annular barrel 13 to rotate and generate water vortexes, after the water vortexes are generated, the pressure intensity of the central area of the water vortexes is lower than that of the outer sides of the water vortexes, then flocs generated in the sewage are concentrated at the middle and the bottom of the water vortexes, the flocs are better concentrated, the water and the flocs are layered, the sewage and the flocs are concentrated at the conical barrel bottom 20 under the action of the conical barrel bottom 20 and are positioned above the connecting ring 21, the sewage in the sedimentation tank body 1 is filtered through the first filter plate 16 on one side, far away from the mixing chamber 2, of the bottom of the annular barrel 13, and the other side of the first filter plate 16 becomes a water purification chamber 28.

Then the second motor 25 is started, the screw auger 22 in the conveying device is driven by the second motor 25 to convey the flocculate in the connecting ring 21 and the sewage into the conveying barrel 23, wherein the water is filtered out from the filter holes 26 arranged on the screw auger 22 and above the conveying barrel 23 during conveying, the solid such as the flocculate is remained in the compression passage 24 to be compressed, the water in the solid is filtered out through the filter holes 26, the flocculate is compressed continuously, the movable compression plate 30 at the tail part of the compression passage 24 is positioned close to the outlet of the compression passage 24 during compression, when the flocculate in the compression passage 24 is compressed to a certain degree, the flocculate is fully filled in the compression passage 24 to form the injector principle, namely, the compressed flocculate blocks the compression passage 24, so that the water cannot be discharged from the outlet 24 of the compression passage, at the moment, the compression in the compression passage 24 is continuously increased, and the flocculate is pushed to move to the movable compression plate 30, the movable compression plate 30 is squeezed out and a gap is formed between the movable compression plate 30 and the compression passage 24 for discharging the flocs.

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 utility model provides a sewage treatment system, includes sedimentation tank body (1), its characterized in that: a mixing chamber (2) is arranged on one side of the sedimentation tank body (1), a rotating mechanism is arranged in the sedimentation tank body (1), a medicine storage box (3) is arranged in the mixing chamber (2), a medicine control assembly is arranged between the medicine storage box (3) and the mixing chamber (2), a mixing assembly is arranged on the inner side of the mixing chamber (2), and a spiral conveying device is arranged at the bottom of the sedimentation tank body (1);

sewage is firstly injected into the mixing chamber (2), and meanwhile, the medicines in the medicine storage box (3) are injected into the mixing chamber (2) together through the medicine control assembly, the medicine control assembly is used for controlling the adding amount of the medicines according to the sewage amount, so that the sewage and the medicines are preliminarily mixed through the mixing assembly and then guided into the sedimentation tank body (1) for flocculation treatment, the rotating mechanism is used for strengthening the flocculation effect of the sedimentation tank body (1), and the spiral conveying device is used for separating flocculates and water.

2. The wastewater treatment system according to claim 1, wherein: mixing chamber (2) one side is provided with the water inlet, be provided with flow detection meter (4) between mixing chamber (2) and the water inlet, flow detection meter (4) inside is provided with infrared detection head (5), infrared detection head (5) are used for detecting the density that the flow passes through sewage, flow detection meter (4) are located mixing chamber (2) inboard is connected with inlet tube (6).

3. The wastewater treatment system according to claim 2, wherein: the medicine control assembly comprises a flow control valve (7), the flow control valve (7) controls the medicine storage box (3) and one side of a connecting pipe (8) between the mixing chambers (2), and the flow control valve (7) is matched with the flow detection meter (4) and the infrared detection head (5) to detect the flow and the density of sewage and control the outflow of the medicine storage box (3).

4. A wastewater treatment system according to claim 3, characterized in that: the mixing assembly comprises a first roller plate (9), two sides of the first roller plate (9) are connected with the mixing chamber (2) in a rotating mode, a first gear (10) is arranged on one side of the first roller plate (9), a second roller plate (11) is arranged at the bottom of the first roller plate (9), one side of the second roller plate (11) is meshed with the first gear (10) through a second gear (12), and a water inlet pipe (6) above the mixing chamber (2) is inclined downwards so that a water outlet of the water inlet pipe (6) is right aligned to one side of the first roller plate (9).

5. The wastewater treatment system according to claim 4, wherein: sedimentation tank body (1) inner chamber middle part is provided with annular bucket (13), annular bucket (13) bottom is provided with guide plate (14), rotary mechanism is located inside annular bucket (13), mixing chamber (2) are close to one side middle part of sedimentation tank body (1) is provided with intercommunicating pore (15), guide plate (14) bottom is close to one side of mixing chamber (2) with sedimentation tank body (1) link up the setting, guide plate (14) opposite side is provided with first filter plate (16).

6. The wastewater treatment system according to claim 5, wherein: screw mechanism includes first motor (18) of poker rod (17) and drive poker rod (17), first motor (18) set up the top of sedimentation tank body (1), first motor (18) through pivot (19) with poker rod (17) are connected, poker rod (17) are located upper portion in annular bucket (13), poker rod (17) rotate the back and drive the sewage in annular bucket (13) and rotate to produce the water vortex.

7. The wastewater treatment system according to claim 1, wherein: sedimentation tank body (1) top is provided with the toper bottom of a barrel (20) that is used for gathering together sewage, toper bottom of a barrel (20) bottom is provided with go-between (21), screw conveyor sets up go-between (21) bottom, toper bottom of a barrel (20) is kept away from one side of mixing chamber (2) with first filter plate (16) of guide plate (14) bottom are connected, sedimentation tank body (1) is located the opposite side of first filter plate (16) is provided with clean water room (28).

8. The wastewater treatment system according to claim 7, wherein: conveyor includes spiral auger (22) and delivery barrel (23), delivery barrel (23) one side upper surface with go-between (21) through connection, spiral auger (22) with delivery barrel (23) inner wall hugs closely the setting mutually, the tail end of delivery barrel (23) is provided with compression passageway (24), compression passageway (24) exit end is provided with movable compression board (30).

9. The wastewater treatment system according to claim 8, wherein: spiral auger (22) one side is provided with second motor (25), be provided with filtration pore (26) on spiral auger (22), conveying bucket (23) top is provided with intercommunication room (27), intercommunication room (27) with water purification room (28) intercommunication, water purification room (28) top one side is provided with wash port (29).