CN107879504B

CN107879504B - Coagulating sedimentation tank for sewage treatment

Info

Publication number: CN107879504B
Application number: CN201711096434.6A
Authority: CN
Inventors: 黄晓军
Original assignee: Suzhou Weizhi Water Treatment Equipment Co ltd
Current assignee: Suzhou Weizhi water treatment equipment Co.,Ltd.
Priority date: 2017-11-09
Filing date: 2017-11-09
Publication date: 2020-10-30
Anticipated expiration: 2037-11-09
Also published as: CN107879504A

Abstract

The invention discloses a coagulation sedimentation tank for sewage treatment, which comprises a pedestrian passage and a tank body, wherein a coagulation tank, a filling tank, a curing tank and a sedimentation tank are arranged in the tank body, the filling tank is positioned at one side of the coagulation tank, the curing tank is positioned at one side of the filling tank, which is far away from the coagulation tank, the sedimentation tank is positioned at one side of the curing tank, which is far away from the filling tank, a first stirring shaft and a first stirring paddle are arranged in the coagulation tank, the first stirring shaft is positioned above the first stirring paddle, a second stirring shaft and a second stirring paddle are arranged in the filling tank, and a flocculating constituent in the tank body respectively flows in through a smooth and curved first baffle curved part, a second baffle curved part and a third baffle curved part when entering the filling tank from the coagulation tank, entering the curing tank from the filling tank and entering the sedimentation tank from the curing tank, so that the flocculating constituent is not divided, improves the flocculation efficiency and has good flocculation effect.

Description

Coagulating sedimentation tank for sewage treatment

Technical Field

The invention belongs to the technical field of sewage treatment, and particularly relates to a coagulating sedimentation tank for sewage treatment.

Background

The coagulating sedimentation tank is one of sedimentation tanks in waste water treatment. The coagulation process is the most basic and very important treatment process in the treatment of industrial water and domestic sewage, and by adding some medicaments (generally called coagulant and coagulant aid) into water, particles which are difficult to precipitate in the water can be polymerized with each other to form colloid, and then are combined with impurities in the water body to form larger floccules. The flocculating constituent has strong adsorption capacity, can adsorb suspended matters, and can adsorb partial bacteria and soluble substances. The flocs sink down by increasing their volume through adsorption. The application of the coagulating sedimentation process in water treatment has been in history for hundreds of years, and compared with other physical and chemical methods, the coagulating sedimentation process has the advantages of good effluent quality, stable and reliable process operation, economy, practicality, simplicity and convenience in operation and the like.

But the coagulating sedimentation pond on the existing market is not only complicated in structure, and the function is single moreover, and the flocculating constituent is by entering into the filling pond by the coagulating basin in, by entering into the curing pond in the filling pond and by entering into the sedimentation pond in the curing pond easily broken, leads to flocculating inefficiency, and when using for a long time, accumulates the filth on the baffle easily, is difficult for getting rid of, is difficult for maintaining when coagulating sedimentation pond bottom calandria damages.

Disclosure of Invention

The invention aims to provide a coagulating sedimentation tank for sewage treatment, which solves the problems that a flocculating constituent proposed in the background technology is easy to break when entering a filling tank from the coagulating tank, entering a curing tank from the filling tank and entering the sedimentation tank from the curing tank, so that the flocculation efficiency is low, dirt is easy to accumulate on a baffle after long-term use, the flocculating constituent is difficult to remove, and a calandria at the bottom of the coagulating sedimentation tank is difficult to maintain when damaged.

In order to achieve the purpose, the invention provides the following technical scheme: a coagulation sedimentation tank for sewage treatment comprises a pedestrian passageway and a tank body, wherein a coagulation tank, a filling tank, a curing tank and a sedimentation tank are arranged in the tank body, the filling tank is positioned on one side of the coagulation tank, the curing tank is positioned on one side of the filling tank far away from the coagulation tank, the sedimentation tank is positioned on one side of the curing tank far away from the filling tank, a first stirring shaft and a first stirring paddle are arranged in the coagulation tank, the first stirring shaft is positioned above the first stirring paddle, a second stirring shaft and a second stirring paddle are arranged in the filling tank, the second stirring shaft is positioned above the second stirring paddle, a third stirring shaft and a third stirring paddle are arranged in the curing tank, the third stirring shaft is positioned above the third stirring paddle, a first baffle vertical part and a first baffle bending part are arranged between the coagulation tank and the filling tank, the first baffle bending part is positioned at the top of the first baffle vertical part, the first baffle bending part is bent towards one side of the filling pool, a second baffle vertical part and a second baffle bending part are arranged between the filling pool and the curing pool, the second baffle bending part is positioned at the bottom of the second baffle vertical part, the second baffle bending part is bent towards one side of the curing pool, a third baffle vertical part and a third baffle bending part are arranged between the curing pool and the sedimentation pool, the third baffle bending part is positioned at the top of the third baffle vertical part, the third baffle bending part is bent towards one side of the sedimentation pool, mud scraper frames are respectively arranged outside the first baffle vertical part, the second baffle vertical part and the third baffle vertical part, a mud scraper is arranged at the bottom of the mud scraper frame, a hanging ring is arranged at the top of the mud scraper frame, a top cover is arranged at the top of the pool body, and a first motor is arranged at a position, close to the upper part of the coagulation pool, on the top cover, a second motor is arranged at a position, close to the upper part of the filling pool, on the top cover, a third motor is arranged at a position, close to the upper part of the curing pool, on the top cover, a coagulant feeding pipe extending into the coagulation pool is arranged at a position, close to the first motor, on the top cover, one side of the coagulation pool is connected with a raw water injection pipe, one side of the precipitation pool is connected with a precipitation water outlet pipe, the pedestrian passage consists of two vertical parts and a horizontal part and is integrally of a groove-shaped structure, the pool body is arranged in a groove of the groove-shaped structure, sidewalk inlets are formed in the upper parts of the two vertical parts, a circulation output pipe, a circulation pump, a circulation conveying pipe and a sludge output pipe are arranged in the horizontal part of the pedestrian passage, one end of the circulation conveying pipe is connected with the circulation pump, the other end of the circulation output pipe, the other end is connected with the filling pond, the one end of mud output tube extends to the outside of pedestrian passageway, first motor, second motor, third motor and circulating pump all with external power supply electric connection.

Preferably, the scraper frame is provided with three altogether, and the bottom of three scraper frame all installs the scraper, and three scraper contacts with the vertical portion of first baffle, the vertical portion of second baffle and the vertical portion of third baffle respectively.

Preferably, the coagulant feeding pipe, the raw water injection pipe, the sedimentation water outlet pipe and the sludge output pipe are all connected with electromagnetic valves.

Preferably, the first motor is connected with the first stirring paddle through a first stirring shaft in a rotating mode, the second motor is connected with the second stirring paddle through a second stirring shaft in a rotating mode, and the third motor is connected with the third stirring paddle through a third stirring shaft in a rotating mode.

Preferably, the pedestrian passageway is of a groove-shaped structure.

Preferably, the pedestrian passageway is internally provided with stairs.

Compared with the prior art, the invention has the following beneficial effects:

(1) the three mud scraper frames are arranged, and the mud scrapers are arranged at the bottoms of the three mud scraper frames and are respectively contacted with the vertical parts of the first baffle, the second baffle and the third baffle, after the mud scraper frames are used for a period of time, the crane can be connected with the lifting ring to drive the mud scraper frames to lift, so that the mud scrapers connected with the bottoms of the mud scraper frames are respectively contacted with the vertical parts of the first baffle, the second baffle and the third baffle, the mud on the outer surfaces of the vertical parts of the first baffle, the second baffle and the third baffle is scraped, and the problem that the mud is adhered to the baffles and is difficult to remove after the mud is used for a long time is solved.

(2) The invention is provided with the pedestrian passage, the stairs are arranged in the pedestrian passage, the pedestrian passage is of a groove-shaped structure, and workers can enter the pedestrian passage along the stairs arranged in the pedestrian passage through the sidewalk inlets arranged at the top ends of the two sides of the pedestrian passage to overhaul and maintain the pipeline, so that the problem that the pipeline of the traditional coagulating sedimentation tank is broken and is difficult to maintain is avoided.

(3) The flocculating constituent in the tank body of the invention flows in through the smooth and curved first baffle curved part, second baffle curved part and third baffle curved part respectively when entering the filling tank from the coagulation tank, entering the curing tank from the filling tank and entering the sedimentation tank from the curing tank, and the flocculating constituent can not be divided, thus improving the flocculation efficiency and having good flocculation effect.

Drawings

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

FIG. 2 is an external view of the present invention;

FIG. 3 is a perspective view of the vertical portion and curved portion of the first baffle of the present invention;

FIG. 4 is a side view of the screed frame of the present invention;

in the figure: 1-sidewalk inlet, 2-coagulant feeding pipe, 3-first motor, 4-hoisting ring, 5-second motor, 6-third motor, 7-top cover, 8-sedimentation tank, 9-sedimentation water outlet pipe, 10-sludge outlet pipe, 11-circulation conveying pipe, 12-circulation pump, 13-circulation outlet pipe, 14-coagulation tank, 15-pedestrian passage, 16-raw water injection pipe, 17-first stirring shaft, 18-first stirring paddle, 19-first baffle bending part, 20-first baffle vertical part, 21-mud scraping plate frame, 22-second stirring shaft, 23-second stirring paddle, 24-third stirring shaft, 25-third stirring paddle, 26-mud scraping plate, 27-tank body, 28-second baffle vertical part, 29-second baffle bending part, 30-third baffle bending part, 31-third baffle vertical part, 32-curing tank and 33-filling tank.

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. 1-4, the present invention provides a technical solution: a coagulation sedimentation tank for sewage treatment comprises a pedestrian passageway 15 and a tank body 27, wherein a coagulation tank 14, a filling tank 33, a curing tank 32 and a sedimentation tank 8 are arranged in the tank body 27, the filling tank 33 is positioned on one side of the coagulation tank 14, the curing tank 32 is positioned on one side of the filling tank 33 far away from the coagulation tank 14, the sedimentation tank 8 is positioned on one side of the curing tank 32 far away from the filling tank 33, sewage is mixed, coagulated and precipitated with a coagulant through the arranged coagulation tank 14, filling tank 33, curing tank 32 and sedimentation tank 8, a first stirring shaft 17 and a first stirring paddle 18 are arranged in the coagulation tank 14, the first stirring shaft 17 is positioned above the first stirring paddle 18, a second stirring shaft 22 and a second stirring paddle 23 are arranged in the filling tank 33, the second stirring shaft 22 is positioned above the second stirring paddle 23, a third stirring shaft 24 and a third stirring paddle 25 are arranged in the curing tank 32, a third stirring shaft 24 is positioned above a third stirring paddle 25, a first baffle vertical part 20 and a first baffle bending part 19 are arranged between a coagulation tank 14 and a filling tank 33, the first baffle bending part 19 is positioned at the top of the first baffle vertical part 20, the first baffle bending part 19 is bent towards one side of the filling tank 33, a second baffle vertical part 28 and a second baffle bending part 29 are arranged between the filling tank 33 and a curing tank 32, the second baffle bending part 29 is positioned at the bottom of the second baffle vertical part 28, the second baffle bending part 29 is bent towards one side of the curing tank 32, a third baffle vertical part 31 and a third baffle bending part 30 are arranged between the curing tank 32 and a sedimentation tank 8, the third baffle bending part 30 is positioned at the top of the third baffle vertical part 31, the third baffle bending part 30 is bent towards one side of the sedimentation tank 8, and a flocculating constituent in the tank 27 enters the filling tank 33 from the coagulation tank 14, When the coagulant enters the curing tank 32 from the filling tank 33 and enters the sedimentation tank 8 from the curing tank 32, the coagulant flows in through the smooth and bent first baffle bending part 19, the second baffle bending part 29 and the third baffle bending part 30 respectively, the flocculant is not divided, the flocculation efficiency is improved, the flocculation effect is good, the mud scraper frame 21 is arranged outside the first baffle vertical part 20, the second baffle vertical part 28 and the third baffle vertical part 31, the mud scraper 26 is arranged at the bottom of the mud scraper frame 21, the top of the mud scraper frame 21 is provided with the lifting ring 4, the top cover 7 is arranged at the top of the tank body 27, the first motor 3 is arranged at the position of the top cover 7, which is close to the curing tank 14, the second motor 5 is arranged at the position of the top cover 7, which is close to the curing tank 32, the third motor 6 is arranged at the position of the top cover 7, the coagulant feeding pipe 2 extending to the interior of the curing tank 14 is arranged at the position of one side, which is close to the first motor 3, one side of the coagulation tank 14 is connected with a raw water injection pipe 16, one side of the sedimentation tank 8 is connected with a sedimentation water outlet pipe 9, the pedestrian passageway 15 is composed of two vertical parts and a horizontal part, the whole body is of a groove-shaped structure, the tank body is arranged in a groove of the groove-shaped structure, the upper parts of the two vertical parts are respectively provided with a sidewalk inlet 1, a worker can enter the pedestrian passageway 15 along stairs arranged in the pedestrian passageway 15 through the sidewalk inlet 1 to overhaul and maintain the pipeline, the horizontal part of the pedestrian passageway 15 is internally provided with a circulation output pipe 13, a circulation pump 12, a circulation conveying pipe 11 and a sludge output pipe 10, one end of the circulation conveying pipe 11 is connected with the circulation pump 12, the other end of the circulation output pipe 13 is connected with the sedimentation tank 8, one end of the circulation output pipe 13 is connected with the circulation pump 12, the other end of the circulation output pipe is connected with, the first motor 3, the second motor 5, the third motor 6 and the circulating pump 12 are all electrically connected with an external power supply.

In this embodiment, preferably, the number of the scraper frames 21 is three, and the bottom of each of the three scraper frames 21 is provided with a scraper 26, each of the three scrapers 26 is in contact with the first baffle vertical portion 20, the second baffle vertical portion 28 and the third baffle vertical portion 31, after the scraper is used for a period of time, the crane can be connected with the lifting ring 4 to drive the scraper frame 21 to lift, so that the scraper 26 connected to the bottom of the scraper frame 21 is in contact with the first baffle vertical portion 20, the second baffle vertical portion 28 and the third baffle vertical portion 31 respectively, the sludge on the outer surface walls of the first baffle vertical portion 20, the second baffle vertical portion 28 and the third baffle vertical portion 31 is scraped, and the problem that the sludge is adhered to the baffles and is not easy to be removed after the scraper is used for a long time is solved.

In this embodiment, preferably, the coagulant feeding pipe 2, the raw water injection pipe 16, the sedimentation water outlet pipe 9 and the sludge outlet pipe 10 are all connected with electromagnetic valves, so as to ensure normal water drainage and water supply of the whole device.

In this embodiment, preferably, the first motor 3 is rotatably connected to the first stirring paddle 18 through the first stirring shaft 17, the second motor 5 is rotatably connected to the second stirring paddle 23 through the second stirring shaft 22, and the third motor 6 is rotatably connected to the third stirring paddle 25 through the third stirring shaft 24, so as to stir the flocculant and the sewage in the tank body 27, so that the flocculant and the sewage are sufficiently mixed, and thus, the flocculation and the coagulation are more efficiently performed.

In this embodiment, preferably, the pedestrian passageway 15 is a groove-shaped structure, and the sidewalk entrance 1 that the staff accessible pedestrian passageway 15 both sides top set up gets into inside the pedestrian passageway 15 along the inside stair that sets up of pedestrian passageway 15, overhauls, maintains the pipeline, avoids the difficult problem of maintaining of traditional coagulating sedimentation tank pipeline fracture.

In this embodiment, preferably, the inside of the pedestrian passageway 15 is provided with a stair, which facilitates the walking of the worker.

The working principle and the using process of the invention are as follows: when in use, the first motor 3, the second motor 5, the third motor 6 and the circulating pump 12 are connected with a power supply, sewage is conveyed into the coagulation tank 14 through the raw water injection pipe 16, a coagulant is put into the coagulation tank 14 through the coagulant putting pipe 2, the first stirring shaft 17 is driven to rotate through the work of the first motor 3, so that the first stirring paddle 18 is driven to rotate, the coagulant and the sewage in the coagulation tank 14 are stirred, the sewage and the coagulant are fully mixed, particles which are difficult to precipitate in the sewage are mutually polymerized to form colloid under the action of the coagulant, then the colloid is combined with impurities in a water body to form a larger flocculating constituent, the flocculating constituent enters the interior of the filling tank 33 from the upper part of the coagulation tank 14, the second stirring shaft 22 is driven to rotate through the work of the second motor 5, so that the second stirring paddle 23 is driven to rotate, and the mixture in the filling tank 33 is stirred, the flocculating constituent is enabled to continuously adsorb the fine suspended matters in the sewage, the flocculating constituent has strong adsorption power and flows into the curing tank 32 from the bottom of the filling tank 33, the third stirring shaft 24 is driven to rotate by the third motor 6, so as to drive the third stirring paddle 25 to rotate, the flocculating constituent is enabled to continuously adsorb and flows into the sedimentation tank 8 from the upper part of the curing tank 32, the volume of the flocculating constituent is gradually increased and sinks to the bottom of the sedimentation tank 8, the mixture in the sedimentation tank 8 is pumped into the filling tank 33 through the circulating conveying pipe 11 and the circulating output pipe 13 by the circulating pump 12 to carry out circulating adsorption and sedimentation work, finally precipitated sludge is discharged through the sludge output pipe 10, precipitated clear water is discharged from the sedimentation water outlet pipe 9, the flocculating constituent in the tank 27 enters the filling tank 33 from the filling tank 33, enters the curing tank 32 from the curing tank 32 and enters the sedimentation tank 8 from the curing tank 32, respectively through level and smooth, crooked first baffle flexion 19, second baffle flexion 29 and the inflow of third baffle flexion 30, can not cut apart the flocculating constituent, the efficiency of flocculation has been improved, flocculation is effectual, after using a period, can be connected loop wheel machine and rings 4, it promotes to drive scraper frame 21, make the scraper 26 of connecting bottom the scraper frame 21 respectively with the vertical portion 20 of first baffle, the vertical portion 28 of second baffle contacts with the vertical portion 31 of third baffle, with the vertical portion 20 of first baffle, the mud on the vertical portion 28 of second baffle and the vertical portion 31 exterior wall of third baffle strikes off, people's accessible pedestrian passageway 15 both sides top sets up sidewalk entry 1 gets into inside pedestrian passageway 15 along the stair that pedestrian passageway 15 inside set up, overhaul the pipeline, the maintenance.

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 coagulating sedimentation tank for sewage treatment, includes pedestrian's passageway (15) and cell body (27), its characterized in that: the improved mixing tank is characterized in that a coagulation tank (14), a filling tank (33), a curing tank (32) and a sedimentation tank (8) are arranged in the tank body (27), the filling tank (33) is located on one side of the coagulation tank (14), the curing tank (32) is located on one side, far away from the coagulation tank (14), of the filling tank (33), the sedimentation tank (8) is located on one side, far away from the filling tank (33), of the curing tank (32), a first stirring shaft (17) and a first stirring paddle (18) are installed in the coagulation tank (14), the first stirring shaft (17) is located above the first stirring paddle (18), a second stirring shaft (22) and a second stirring paddle (23) are installed in the filling tank (33), the second stirring shaft (22) is located above the second stirring paddle (23), a third stirring shaft (24) and a third stirring paddle (25) are installed in the curing tank (32), the third stirring shaft (24) is positioned above a third stirring paddle (25), a first baffle vertical part (20) and a first baffle bending part (19) are installed between the coagulation tank (14) and the filling tank (33), the first baffle bending part (19) is positioned at the top of the first baffle vertical part (20), the first baffle bending part (19) is bent towards one side of the filling tank (33), a second baffle vertical part (28) and a second baffle bending part (29) are installed between the filling tank (33) and the curing tank (32), the second baffle bending part (29) is positioned at the bottom of the second baffle vertical part (28), the second baffle bending part (29) is bent towards one side of the curing tank (32), a third baffle vertical part (31) and a third baffle bending part (30) are installed between the curing tank (32) and the sedimentation tank (8), and the third baffle (30) is positioned at the top of the third baffle vertical part (31), and the third baffle bending part (30) is bent towards one side of the sedimentation tank (8), a mud scraper frame (21) is arranged outside the first baffle vertical part (20), the second baffle vertical part (28) and the third baffle vertical part (31), a mud scraper (26) is arranged at the bottom of the mud scraper frame (21), a hoisting ring (4) is arranged at the top of the mud scraper frame (21), a top cover (7) is arranged at the top of the tank body (27), a first motor (3) is arranged at the position, close to the upper part of the coagulation tank (14), on the top cover (7), a second motor (5) is arranged at the position, close to the upper part of the filling tank (33), on the top cover (7), a third motor (6) is arranged above the curing tank (32), a coagulant throwing pipe (2) extending into the coagulation tank (14) is arranged at the position, close to the first motor (3), on the top cover (7), one side of the coagulation tank (14) is connected with a raw water injection pipe (16), one side of the sedimentation tank (8) is connected with a sedimentation water outlet pipe (9), the pedestrian passageway (15) is composed of two vertical parts and a horizontal part and integrally has a groove-shaped structure, the tank body is arranged in a groove of the groove-shaped structure, sidewalk inlets (1) are arranged at the upper parts of the two vertical parts, a circulating output pipe (13), a circulating pump (12), a circulating conveying pipe (11) and a sludge output pipe (10) are arranged in the horizontal part of the pedestrian passageway (15), one end of the circulating conveying pipe (11) is connected with the circulating pump (12), the other end of the circulating conveying pipe is connected with the sedimentation tank (8), one end of the circulating output pipe (13) is connected with the circulating pump (12), the other end of the circulating output pipe is connected with a filling tank (33), one end of the sludge output pipe (10) extends to the, the first motor (3), the second motor (5), the third motor (6) and the circulating pump (12) are all electrically connected with an external power supply.

2. The coagulating sedimentation tank for sewage treatment as set forth in claim 1, wherein: the scraper frames (21) are three in number, the bottom of each scraper frame (21) is provided with a scraper (26), and the three scrapers (26) are in contact with the first baffle vertical portion (20), the second baffle vertical portion (28) and the third baffle vertical portion (31) respectively.

3. The coagulating sedimentation tank for sewage treatment as set forth in claim 1, wherein: the coagulant feeding pipe (2), the raw water injection pipe (16), the sedimentation water outlet pipe (9) and the sludge outlet pipe (10) are all connected with electromagnetic valves.

4. The coagulating sedimentation tank for sewage treatment as set forth in claim 1, wherein: first motor (3) rotate through first (mixing) shaft (17) with first stirring rake (18) and are connected, second motor (5) rotate through second (mixing) shaft (22) with second stirring rake (23) and are connected, third motor (6) rotate through third (mixing) shaft (24) with third stirring rake (25) and are connected.

5. The coagulating sedimentation tank for sewage treatment as set forth in claim 1, wherein: the pedestrian passageway (15) is of a groove-shaped structure.

6. The coagulating sedimentation tank for sewage treatment as set forth in claim 1, wherein: the inside of the pedestrian passageway (15) is provided with stairs.