CN210457903U

CN210457903U - Sludge settling tank

Info

Publication number: CN210457903U
Application number: CN201921209566.XU
Authority: CN
Inventors: 李绍伟; 岳登保
Original assignee: Yunnan Britain Norwich Environmental Engineering Co ltd
Current assignee: Yunnan Britain Norwich Environmental Engineering Co ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-05-05
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses a sludge settling tank, which comprises a tank body, a flow baffle, an overflow plate, a stirrer, a flocculation stirrer and an auxiliary settling stirrer, wherein the flow baffle, the overflow plate, the stirrer, the flocculation stirrer and the auxiliary settling stirrer are arranged in the tank body, the flow baffle comprises a first flow baffle and a second flow baffle, the overflow plate comprises a first overflow plate, a second overflow plate and a third overflow plate, the direction from a water inlet to a water outlet is arranged in the tank body, the first flow baffle, the first overflow plate, the second flow baffle, the second overflow plate and the third overflow plate are respectively arranged in the tank body, a pretreatment chamber is arranged between the first flow baffle and the water inlet, a water outlet pipe is arranged at the bottom of the first flow baffle, a flocculation chamber is arranged between the first flow baffle and the first overflow plate, a settling chamber is arranged between the second flow baffle and the second overflow plate, and a first disinfection chamber is arranged between the second overflow plate and the third overflow plate, a second disinfection chamber is arranged between the third overflow plate and the water outlet. The utility model discloses subside effectual, subside efficient, convenient to use.

Description

Sludge settling tank

Technical Field

The utility model relates to an environmental protection field especially relates to a sludge settling basin.

Background

The sludge settling tank is also called a sludge concentration tank and generally adopts a shape similar to a vertical flow type or a radial flow type. The method can be divided into two types of intermittent operation and continuous operation, wherein the former is mainly used for small sewage treatment plants or sewage treatment plants of industrial enterprises, and the latter is used for large and medium sewage treatment plants. The continuous gravity concentration tank has the same form as the radial flow sedimentation tank, and can be divided into three types, namely a sludge scraper and a sludge stirring device, a multi-layer concentration tank (with the sludge scraper), and the like without the sludge scraper.

The existing equipment generally occupies a large area, has overhigh construction cost, needs great investment and has low sedimentation efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sludge settling basin to prior art not enough, subside effectual, subside efficient, convenient to use.

In order to achieve the above purpose, the present invention is achieved by the following technical solutions.

A sludge sedimentation tank comprises a tank body, a flow baffle plate, an overflow plate, a stirrer, a flocculation stirrer and an auxiliary sedimentation stirrer, wherein a water inlet is arranged at one side of the tank body, a water outlet is arranged at one side of the tank body opposite to the water inlet, the tank body is internally provided with the flow baffle plate, the overflow plate, the stirrer, the flocculation stirrer and the auxiliary sedimentation stirrer, the flow baffle plate comprises a first flow baffle plate and a second flow baffle plate, the overflow plate comprises a first overflow plate, a second overflow plate and a third overflow plate, the direction from the water inlet to the water outlet is provided, the tank body is internally provided with the first flow baffle plate, the first overflow plate, the second flow baffle plate, the second overflow plate and the third overflow plate respectively, a pretreatment chamber is arranged between the first flow baffle plate and the water inlet, the stirrer is arranged in the pretreatment chamber, and the bottom of the first flow baffle plate is provided with a water outlet pipe, the improved sewage treatment device is characterized in that a flocculation chamber is arranged between the first flow baffle and the first overflow plate, a flocculation stirrer is arranged inside the flocculation chamber, a second flow baffle is arranged on one side, away from the first flow baffle, of the first overflow plate, a gap is formed between the second flow baffle and the bottom of the pool body, a settling chamber is arranged between the second flow baffle and the second overflow plate, an auxiliary settling stirrer is arranged in the settling chamber, a first disinfection chamber is arranged between the second overflow plate and the third overflow plate, and a second disinfection chamber is arranged between the third overflow plate and the water outlet.

Furthermore, the bottom of the first disinfection chamber and the bottom of the flocculation chamber are both provided with sludge outlets.

Further, the flocculation stirrer comprises a flocculation barrel, a feeding pipe, a stirring shaft, a stirring paddle, a first motor and a bracket, the flocculation barrel is fixed between the first flow baffle and the first overflow plate through a bracket, the first motor is arranged on a cover plate at the top of the tank body, the stirring shaft is connected with a transmission shaft of the first motor, the stirring paddle is arranged on the stirring shaft and is positioned in the flocculation barrel, the stirring paddles) comprise a first stirring paddle and a second stirring paddle, the first stirring paddle and the second stirring paddle are symmetrically arranged on the stirring shaft, the symmetric axes of the first stirring paddle and the second stirring paddle are mutually vertical to the stirring shaft, the feed pipe is arranged on the side wall of the flocculation barrel, the outlet of the feed pipe is positioned between the first stirring paddle and the second stirring paddle, the first stirring paddle comprises a paddle shaft and a paddle blade, an included angle between one end of the paddle shaft and the stirring shaft is 30-60 degrees, and the paddle blade is arranged at the other end of the paddle shaft).

Further, the number of the paddle shafts is at least three, and the paddle shafts are annularly arranged on the stirring shaft.

Further, the paddle is plate-shaped and is perpendicular to the rotating direction of the stirring paddle.

Furthermore, the auxiliary sedimentation stirrer comprises a second motor, a middle rotating shaft, a propeller and a sedimentation hopper, the second motor is installed on a cover plate of the pool body, the middle rotating shaft is connected with a transmission shaft of the second motor, the propeller is installed on the middle rotating shaft, the sedimentation hopper is installed at the bottom of the sedimentation chamber, a sludge outlet is formed in the bottom of the sedimentation hopper, the section of the sedimentation hopper is in an inverted triangle shape, the vertex angle of the sedimentation hopper is 30-60 degrees, and the propeller is matched with the sedimentation hopper.

Furthermore, a filter screen with 100 meshes and 150 meshes is arranged at the top end of the second overflow plate.

The utility model discloses a sludge settling basin subsides effectually, subsides efficiently, convenient to use.

Drawings

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

FIG. 2 is a schematic structural view of the flocculation stirrer of the present invention;

in the figure: 1. a tank body; 2. a flow baffle plate; 3. an overflow plate; 4. a stirrer; 5. a flocculation stirrer; 6. an auxiliary settling agitator; 11. a water inlet; 12. a water outlet; 13. a sludge outlet; 21. a first flow baffle; 211. a water outlet pipe; 22. a second flow baffle; 31. a first overflow plate; 32. a second overflow plate; 33. a third overflow plate; 51. a flocculation barrel; 52. a feed tube; 53. a stirring shaft; 54. a stirring paddle; 56. a first motor; 55. a support; 541. a first stirring paddle; 542. a second stirring paddle; 5411. a paddle shaft; 5412. a paddle; 61. a second motor; 62. a middle rotating shaft; 63. a propeller; 64. a settling hopper.

Detailed Description

The present invention is further illustrated by the following examples, but is not limited to the contents of the specification.

As shown in the figure: a sludge settling tank comprises a tank body 1, a flow baffle 2, an overflow plate 3, a stirrer 4, a flocculation stirrer 5 and an auxiliary settling stirrer 6.

A water inlet 11 is arranged at one side of the tank body 1, and a water outlet 12 is arranged at one side of the tank body 1 opposite to the water inlet 11. A flow baffle 2, an overflow plate 3, a stirrer 4, a flocculation stirrer 5 and an auxiliary sedimentation stirrer 6 are arranged in the tank body 1.

The flow baffle 2 comprises a first flow baffle 21 and a second flow baffle 22, and the overflow plate 3 comprises a first overflow plate 31, a second overflow plate 32 and a third overflow plate 33.

From the water inlet 11 to the water outlet 12, a first flow baffle 21, a first overflow plate 31, a second flow baffle 22, a second overflow plate 32 and a third overflow plate 33 are respectively arranged in the tank body 1.

For the pre-treatment chamber between first fender stream board 21 and the water inlet, the inside of pre-treatment chamber is provided with agitator 4, and agitator 4 is conventional agitated vessel, and after the purpose made sewage got into the sedimentation tank, can stir the mud of large granule, prevent that mud from subsiding, and subsequent flocculation operation of being convenient for, the bottom of first fender stream board 21 is provided with outlet pipe 211, and the export of outlet pipe 211 communicates the inside of flocculation agitator 5.

A flocculation chamber is arranged between the first flow baffle plate 21 and the first overflow plate 31, a flocculation stirrer 5 is arranged in the flocculation chamber, the flocculation stirrer 5 comprises a flocculation barrel 51, a feeding pipe 52, a stirring shaft 53, a stirring paddle 54, a first motor 56 and a bracket 55, only the upper part of the flocculation barrel 51 is open, the flocculation barrel 51 is fixed between the first flow baffle plate 21 and the first overflow plate 31 through the bracket 55, the first motor 56 is arranged on a cover plate at the top of the tank body 1, the stirring shaft 53 is connected with a transmission shaft of the first motor 56, the stirring paddle 54 is arranged on the stirring shaft 53 and is positioned in the flocculation barrel 51, the stirring paddle 54 comprises a first stirring paddle 541 and a second stirring paddle 542, the first stirring paddle 541 and the second stirring paddle 542 are symmetrically arranged on the stirring shaft 53, the symmetric shafts of the first stirring paddle 541 and the second stirring paddle 542 are mutually vertical to the stirring shaft 53, the feeding pipe 52 is arranged on the side wall of the flocculation barrel 51, and the, Between the second paddles 542. The first stirring paddle 541 comprises at least three paddle shafts 5411 and blades 5412, the paddle shafts 5411 are annularly arranged on the stirring shaft 53, the included angle between one end of the paddle shaft 5411 and the stirring shaft 53 is 30-60 degrees, the included angle is too small to form a turbulent flow area, the angle is too large, the stirring is too violent, the flocculation reaction is not facilitated, the blades 5412 are arranged at the other end of the paddle shaft 5411, the blades 5412 are plate-shaped and are vertical to the rotating direction of the stirring paddle 54, so that a turbulent flow area can be formed between the first stirring paddle 541 and the second stirring paddle 542 in the rotating process, a flocculating agent can be fully contacted and reacted with sewage when being added, the flocculation effect is accelerated, the treatment efficiency is improved, the first stirring paddle 541 is inclined upwards to facilitate the sewage to be stirred and flow downwards to a next treatment chamber, the second stirring paddle 542 is inclined downwards, the flocculated sludge cannot be accumulated and precipitated, clogging the flocculation vat 51. In order to accelerate the reaction, a plurality of feed pipes 52 and water outlet pipes 211 can be arranged, and are uniformly arranged around the flocculation barrel 51, and the optimal number is 3, and the discharge ports of the feed pipes 52 and the water outlets of the water outlet pipes 211 are distributed in a staggered manner, so that excessive waste of the flocculating agent can be caused. The feed inlet of the feed pipe 52 is arranged on the cover plate of the tank body 1, so that feeding is facilitated.

The side of the first overflow plate 31 far away from the first flow baffle plate 21 is provided with a second flow baffle plate 22, a gap is arranged between the second flow baffle plate 22 and the bottom of the tank body 1, so that sewage can flow from the flocculation chamber, the flow rate can be reduced as soon as possible, and sedimentation is facilitated, a sedimentation chamber is arranged between the second flow baffle plate 22 and the second overflow plate 32, an auxiliary sedimentation stirrer 6 is arranged in the sedimentation chamber, the auxiliary sedimentation stirrer 6 comprises a second motor 61, a middle rotating shaft 62, a propeller 63 and a sedimentation hopper 64, the second motor 61 is arranged on a cover plate of the tank body 1, the middle rotating shaft 62 is connected with a transmission shaft of the second motor 61, the propeller 63 is arranged on the middle rotating shaft 62, the sedimentation hopper 64 is arranged at the bottom of the sedimentation chamber, the bottom of the sedimentation hopper 64 is provided with a sludge outlet 13, the section of the sedimentation hopper 64 is in an inverted triangle shape, the apex angle is 30-60 degrees, the propeller 63, form vortex, similar to cyclone dust removing effect, accelerate the sedimentation of sludge. The angle of the top angle of the settling hopper 64 is too small, the sludge settling effect is poor, and the too large angle causes the sludge to be stuck on the inner wall of the settling hopper 64, and once the sludge collapses, the sludge outlet 13 is blocked.

A first disinfection chamber is arranged between the second overflow plate 32 and the third overflow plate 33 and mainly disinfected by lime and the like, the third overflow plate 33 is 10-20cm lower than the second overflow plate 32, and a second disinfection chamber is arranged between the third overflow plate 33 and the water outlet and mainly disinfected by ultraviolet rays. The top end of the second overflow plate 32 is provided with a 100-150 mesh filter screen to prevent the flocculated sludge from overflowing to the disinfection chamber.

The bottom of the first disinfection chamber and the bottom of the flocculation chamber are both provided with sludge outlets 13, which is convenient for periodically removing self-settled sludge.

The utility model discloses a sewage passes through the water inlet, passes through preliminary treatment room, flocculation chamber, deposit room, disinfection room in proper order, then gets rid of from the delivery port, whole process easy operation, and it is convenient to handle.

It is to be understood that the above-described embodiments of the present invention are merely examples provided for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes or variations led out by the technical scheme of the utility model are still in the protection scope of the utility model.

Claims

1. A sludge settling pond is characterized in that: the novel sewage treatment device comprises a tank body (1), a flow baffle plate (2), overflow plates (3), a stirrer (4), a flocculation stirrer (5) and an auxiliary sedimentation stirrer (6), wherein a water inlet (11) is formed in one side of the tank body (1), a water outlet (12) is formed in one side, opposite to the water inlet (11), of the tank body (1), the flow baffle plate (2), the overflow plates (3), the stirrer (4), the flocculation stirrer (5) and the auxiliary sedimentation stirrer (6) are arranged in the tank body (1), the flow baffle plate (2) comprises a first flow baffle plate (21) and a second flow baffle plate (22), the overflow plates (3) comprise a first overflow plate (31), a second overflow plate (32) and a third overflow plate (33), and the direction from the water inlet (11) to the water outlet (12), and the first flow baffle plate (21) and the auxiliary sedimentation stirrer (6) are arranged in the tank body (1), A first overflow plate (31), a second flow baffle plate (22), a second overflow plate (32) and a third overflow plate (33), wherein a pretreatment chamber is arranged between the first flow baffle plate (21) and the water inlet, a stirrer (4) is arranged in the pretreatment chamber, a water outlet pipe (211) is arranged at the bottom of the first flow baffle plate (21), a flocculation chamber is arranged between the first flow baffle plate (21) and the first overflow plate (31), a flocculation stirrer (5) is arranged in the flocculation chamber, a second flow baffle plate (22) is arranged at one side of the first overflow plate (31) far away from the first flow baffle plate (21), a gap is arranged between the second flow baffle plate (22) and the bottom of the tank body (1), a settling chamber is arranged between the second flow baffle plate (22) and the second overflow plate (32), an auxiliary settling stirrer (6) is arranged in the settling chamber, and a first disinfection chamber is arranged between the second overflow plate (32) and the third overflow plate (33), a second disinfection chamber is arranged between the third overflow plate (33) and the water outlet.

2. The sludge settling tank of claim 1, wherein: the bottom of the first disinfection chamber and the bottom of the flocculation chamber are both provided with sludge outlets (13).

3. The sludge settling tank of claim 1, wherein: the flocculation stirrer (5) comprises a flocculation barrel (51), a feeding pipe (52), a stirring shaft (53), a stirring paddle (54), a first motor (56) and a support (55), wherein the flocculation barrel (51) is fixed between a first flow baffle plate (21) and a first overflow plate (31) through the support (55), the first motor (56) is installed on a cover plate at the top of the tank body (1), the stirring shaft (53) is connected with a transmission shaft of the first motor (56), the stirring paddle (54) is installed on the stirring shaft (53) and is located in the flocculation barrel (51), the stirring paddle (54) comprises a first stirring paddle (541) and a second stirring paddle (542), the first stirring paddle (541) and the second stirring paddle (542) are symmetrically installed on the stirring shaft (53), the symmetrical shafts of the first stirring paddle (541) and the second stirring paddle (542) are perpendicular to each other, the feeding pipe (52) is arranged on the side wall of the flocculation barrel (51), and the outlet of the feeding pipe is located on the first stirring paddle (541), The first stirring paddle (541) comprises a paddle shaft (5411) and a paddle (5412), an included angle between one end of the paddle shaft (5411) and the stirring shaft (53) is 30-60 degrees, and the paddle (5412) is arranged at the other end of the paddle shaft (5411).

4. The sludge settling tank of claim 3, wherein: the number of the paddle shafts (5411) is at least three, and the paddle shafts (5411) are annularly arranged on the stirring shaft (53).

5. The sludge settling tank of claim 3, wherein: the paddle (5412) is plate-shaped and is perpendicular to the rotation direction of the stirring paddle (54).

6. The sludge settling tank of claim 1, wherein: the auxiliary sedimentation stirrer (6) comprises a second motor (61), a middle rotating shaft (62), a propeller (63) and a sedimentation hopper (64), the second motor (61) is installed on a cover plate of the tank body (1), the middle rotating shaft (62) is connected with a transmission shaft of the second motor (61), the propeller (63) is installed on the middle rotating shaft (62), the sedimentation hopper (64) is installed at the bottom of the sedimentation chamber, a sludge outlet (13) is formed in the bottom of the sedimentation hopper (64), the cross section of the sedimentation hopper (64) is in an inverted triangle shape, the vertex angle is 30-60 degrees, and the propeller (63) is matched with the sedimentation hopper (64).

7. The sludge settling tank of claim 1, wherein: the top end of the second overflow plate (32) is provided with a filter screen with 100 meshes and 150 meshes.