CN217173330U

CN217173330U - Vertical flow type air flotation tank for water treatment

Info

Publication number: CN217173330U
Application number: CN202123398502.9U
Authority: CN
Inventors: 李开华
Original assignee: Shandong Hua Xue Environmental Protection & Technology Co ltd
Current assignee: Shandong Hua Xue Environmental Protection & Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-08-12
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a vertical flow type air-float pool for water treatment, belonging to the technical field of sewage treatment equipment, comprising a dissolved air pool, wherein one side of the dissolved air pool is provided with a water inlet pipe and a dissolved air pipe, the water inlet pipe is positioned below the dissolved air pipe, and the part of the dissolved air pipe extending into the dissolved air pool is provided with a plurality of air outlets; a slag scraping component is arranged above the dissolved air tank, a sludge cavity is arranged on one side of the upper end of the dissolved air tank, a water outlet tank is arranged on the other side of the upper end of the dissolved air tank, a filter belt is arranged between the water outlet tank and the dissolved air tank, a through hole is formed in the filter belt, and a first scraper plate abutted against the surface of the filter belt is arranged on one side of the filter belt; the utility model discloses utilize the scum subassembly of scraping of the top of dissolved air pond can strike off the dross that floats to the surface of water, and the filter belt between play basin and the dissolved air pond can effectual adhesion follow the impurity that rivers flow, and improvement that can be great flows in the cleanliness of the water of play basin, simple structure, convenient to use to can effectual improvement to sewage treatment's effect.

Description

Vertical flow type air flotation tank for water treatment

Technical Field

The utility model relates to a sewage treatment device technical field, concretely relates to vertical flow formula air supporting pond for water treatment.

Background

In the field of sewage treatment, solid-liquid separation is one of the commonly used treatment means, and an air floatation device is a commonly used treatment device in the solid-liquid separation technology. The principle of the air floatation device for water treatment is as follows: the dissolved air water can be generated under the action of the dissolved air pump and released into the sewage through the dissolved air pipe; when the pressure that the dissolved air water received reduces, the air in the dissolved air water can release, forms 20-40 um's microbubble, and the microbubble can combine with the suspended solid in the sewage, makes the proportion of suspended solid be less than water to float to the surface of water gradually and form the dross, realize solid-liquid separation. Compared with the conventional precipitation treatment process, the air floatation treatment process greatly accelerates the solid-liquid separation speed, and the occupied area of the air floatation device is smaller.

The air flotation device can be generally divided into three types, namely advection air flotation, vertical flow air flotation and shallow layer air flotation according to the hydraulic flow direction, wherein water in the vertical flow air flotation device flows in the vertical direction; because the impurity in the sewage is comparatively complicated, can have the great impurity of the great proportion of some granule especially in the sewage, some is difficult to float under the effect of microbubble in this type of impurity, can suspend in the air supporting pond after some combines with the microbubble in addition, and this type of impurity all can flow thereupon under the drive of the water of vertical flow, can not float to the surface of water and form the dross, the solid-liquid separation effect of influence air supporting device that can be serious.

Therefore, the design of a vertical flow type air flotation tank which has a simple structure and is convenient to use and can effectively improve the sewage treatment effect is a problem to be solved urgently by sewage treatment equipment production enterprises at the present stage.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model discloses utilize the top of dissolved air pond to scrape the sediment subassembly and can strike off the dross that floats to the surface of water, the impurity that rivers flow can be followed to the cassette tape between play pond and the dissolved air pond effectual adhesion, improvement that can be great flows in the cleanliness of the water of play pond, simple structure, convenient to use to can effectual improvement to sewage treatment's effect.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model provides a vertical flow type air flotation tank for water treatment, which comprises a dissolved air tank, wherein one side of the dissolved air tank is provided with a water inlet pipe and an air dissolving pipe, the water inlet pipe is positioned below the air dissolving pipe, the air dissolving pipe extends into the dissolved air tank, and the part of the air dissolving pipe extending into the dissolved air tank is provided with a plurality of air outlet holes; the top in solution pond is equipped with scrapes the sediment subassembly, one side of the upper end in solution pond has the mud chamber, the opposite side of the upper end in solution pond is equipped with out the basin, go out the basin with dissolve the pond intercommunication, go out the basin with be equipped with the cassette between the solution pond, the cassette slope sets up, the cassette is connected with the drive assembly that the cassette removed, be equipped with the through-hole on the cassette, one side of cassette be equipped with the first scraper blade of cassette surface butt.

As a preferred technical scheme, the bottom of the gas dissolving pool is funnel-shaped, and a first sludge outlet pipeline is arranged at the bottom of the gas dissolving pool.

As a preferred technical scheme, a first baffle is arranged at a position between the water inlet pipe and the dissolved air pipe in the dissolved air tank, and the first baffle is arranged in an inclined and upward manner.

As a preferable technical solution, an included angle between a tangent line of the surface of the first baffle and the horizontal plane gradually increases along a direction from bottom to top.

As a preferable technical scheme, a second baffle is arranged at a position above the gas dissolving pipe in the gas dissolving tank, and the second baffle is arranged obliquely upwards.

As a preferred technical solution, an included angle between a tangent line of the surface of the second baffle and the horizontal plane gradually decreases and then gradually increases along a direction from bottom to top.

As a preferable technical scheme, the air dissolving pipe is connected with an air dissolving pump.

As a preferred technical scheme, the slag scraping component comprises a conveyor belt and a plurality of second scraping plates arranged on the conveyor belt.

As a preferable technical scheme, the sludge cavity is obliquely arranged, and the lowest part of the sludge cavity is provided with a second sludge outlet pipeline; the water outlet pool is provided with a water outlet pipeline.

As a preferable technical solution, the filter belt is disposed obliquely upward in a direction away from the solution tank.

The utility model has the advantages of that:

1. the utility model discloses utilize the scum subassembly of scraping of the top of dissolved air pond can strike off the dross that floats to the surface of water, and the filter belt between play basin and the dissolved air pond can effectual adhesion follow the impurity that rivers flow, and improvement that can be great flows in the cleanliness of the water of play basin, simple structure, convenient to use to can effectual improvement to sewage treatment's effect.

2. The utility model discloses a first baffle can reduce the velocity of flow of water in vertical direction effectively, improves the precipitation effect of great solid particle in the sewage.

3. The utility model discloses a second baffle can improve the contact chance of water and microbubble, improves the probability that the microbubble combines the suspended solid, improves the treatment effect to sewage.

Drawings

Fig. 1 is a schematic view of the overall structure of a vertical flow type air flotation tank for water treatment.

In the figure: 1-a gas dissolving pool, 11-a sludge cavity, 12-a first sludge outlet pipeline, 13-a first baffle, 14-a second baffle, 15-a second sludge outlet pipeline, 2-a water inlet pipe, 3-a gas dissolving pipe, 31-an air hole, 32-a gas dissolving pump, 41-a conveyor belt, 42-a second scraper, 5-a water outlet pool, 51-a water outlet pipeline, 6-a filter belt and 61-a first scraper.

Detailed Description

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1, the utility model provides a vertical flow type air flotation tank for water treatment, which comprises a dissolved air tank 1, wherein one side of the dissolved air tank 1 is provided with a water inlet pipe 2 and a dissolved air pipe 3, sewage enters the dissolved air tank 1 through the water inlet pipe 2, and the dissolved air water enters the dissolved air tank 1 through the dissolved air pipe 3; the water inlet pipe 2 is positioned below the gas dissolving pipe 3, and sewage can flow upwards in the gas dissolving tank 1 and then is mixed with gas dissolving water, so that large particles and high-density impurities in the sewage can be conveniently precipitated; the gas dissolving pipe 3 extends into the gas dissolving pool 1, a plurality of gas outlet holes 31 are formed in the part of the gas dissolving pipe 3 extending into the gas dissolving pool 1, and the gas outlet holes 31 are uniformly distributed in the gas dissolving pool 1, so that the mixing effect of gas dissolving water and sewage can be improved; a scum scraping assembly is arranged above the gas dissolving tank 1, a sludge cavity 11 is formed in one side of the upper end of the gas dissolving tank 1, and scum on the water surface can be scraped into the sludge cavity 11 by the scum scraping assembly; a water outlet pool 5 is arranged on the other side of the upper end of the gas dissolving pool 1, the water outlet pool 5 is communicated with the gas dissolving pool 1, a filter belt 6 is arranged between the water outlet pool 5 and the gas dissolving pool 1, the filter belt 6 is obliquely arranged, the filter belt 6 is connected with a driving assembly for driving the filter belt 6 to move, the driving assembly can be a servo motor, the filter belt 6 is wound on a conveying roller, and an output shaft of the servo motor is in transmission connection with the conveying roller; the filter belt 6 is provided with through holes, and the filter belt 6 can be adhered with impurities suspended in water or flowing along with the water, so that the cleanliness of the water entering the water outlet pool 5 is improved; a first scraper 61 abutting against the surface of the filter belt 6 is provided on one side of the filter belt 6, and the first scraper 61 can scrape off the foreign matters adhered to the filter belt 6.

In this embodiment, referring to fig. 1, the bottom of the gas dissolving tank 1 is funnel-shaped, the first sludge outlet pipe 12 is disposed at the bottom of the gas dissolving tank 1, and large-particle and high-density impurities can be precipitated at the bottom of the gas dissolving tank 1 and can be discharged from the first sludge outlet pipe 12.

In this embodiment, referring to fig. 1, a first baffle 13 is disposed in the gas dissolving tank 1 between the water inlet pipe 2 and the gas dissolving pipe 3, the first baffle 13 is disposed obliquely upward, and the first baffle 13 can delay the upward flowing speed of the sewage, so as to facilitate the precipitation of large-particle and large-density impurities; specifically, the included angle between the tangent line of the surface of the first baffle 13 and the horizontal plane is gradually increased along the direction from bottom to top, so that the precipitation effect of large-particle and large-density impurities can be further improved.

In this embodiment, referring to fig. 1, a second baffle 14 is disposed at a position above the dissolved air pipe 3 in the dissolved air tank 1, the second baffle 14 is disposed obliquely upward, and the first baffle 13 can delay the floating speed of microbubbles in the dissolved air water, improve the probability of combining microbubbles with suspended matters, and improve the sewage treatment effect; specifically, the included angle between the tangent line of the surface of the second baffle 14 and the horizontal plane is gradually reduced and then gradually increased along the direction from bottom to top, so that the combination effect of the microbubbles and the suspended matters can be further improved.

Referring to fig. 1, the gas dissolving tube 3 is connected to a gas dissolving pump 32, and the gas dissolving water can be uniformly released into the gas dissolving tank 1 along the gas dissolving tube 3 through the gas holes 31 under the action of the gas dissolving pump 32.

In this embodiment, referring to fig. 1, the scum scraping assembly includes a conveyor belt 41 and a plurality of second scrapers 42 disposed on the conveyor belt 41, and the second scrapers 42 are driven by the conveyor belt 41 to move and can scrape scum on the water surface into the sludge chamber 11; furthermore, the sludge cavity 11 is obliquely arranged, a second sludge outlet pipeline 15 is arranged at the lowest position of the sludge cavity 11, and scum in the sludge cavity 11 can be discharged from the second sludge outlet pipeline 15.

Referring to fig. 1, the water outlet tank 5 is provided with a water outlet pipe 51, and the water treated by the present invention is discharged from the water outlet pipe 51.

In this embodiment, referring to fig. 1, the filter belt 6 is disposed obliquely upward along a direction away from the solution tank 1, and the filter belt 6 can bring the adhered impurities out of the water surface, so that the impurities can be scraped by the first scraper 61.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vertical flow type air flotation tank for water treatment is characterized by comprising an air dissolving tank, wherein a water inlet pipe and an air dissolving pipe are arranged on one side of the air dissolving tank, the water inlet pipe is positioned below the air dissolving pipe, the air dissolving pipe extends into the air dissolving tank, and a plurality of air outlet holes are formed in the part of the air dissolving pipe extending into the air dissolving tank; the sludge scraping device is characterized in that a sludge scraping component is arranged above the dissolved air tank, a sludge cavity is formed in one side of the upper end of the dissolved air tank, a water outlet tank is arranged on the other side of the upper end of the dissolved air tank and communicated with the dissolved air tank, a filter belt is arranged between the water outlet tank and the dissolved air tank, the filter belt is obliquely arranged and connected with a driving component for driving the filter belt to move, a through hole is formed in the filter belt, and a first scraper plate abutted to the surface of the filter belt is arranged on one side of the filter belt.

2. The vertical flow type air flotation tank for water treatment as claimed in claim 1, wherein the bottom of the air dissolving tank is funnel-shaped, and a first sludge outlet pipeline is arranged at the bottom of the air dissolving tank.

3. The vertical flow type air flotation tank for water treatment as claimed in claim 1, wherein a first baffle is arranged in the air dissolving tank at a position between the water inlet pipe and the air dissolving pipe, and the first baffle is arranged obliquely upwards.

4. The vertical flow type air flotation tank for water treatment as claimed in claim 3, wherein an included angle between a tangent of the surface of the first baffle plate and a horizontal plane is gradually increased along a direction from bottom to top.

5. The vertical flow type air flotation tank for water treatment as claimed in claim 1, wherein a second baffle is provided at a position above the air dissolving pipe in the air dissolving tank, and the second baffle is disposed obliquely upward.

6. The vertical flow type air flotation tank for water treatment as claimed in claim 5, wherein an included angle between a tangent of the surface of the second baffle and a horizontal plane is gradually reduced and then gradually increased in a bottom-up direction.

7. The vertical flow type air flotation tank for water treatment as claimed in claim 1, wherein the dissolved air pipe is connected with a dissolved air pump.

8. The vertical flow air flotation tank for water treatment as claimed in claim 1, wherein the residue scraping assembly comprises a conveyor belt and a plurality of second scrapers arranged on the conveyor belt.

9. The vertical flow type air flotation tank for water treatment as claimed in claim 1, wherein the sludge cavity is arranged obliquely, and a second sludge outlet pipeline is arranged at the lowest part of the sludge cavity; the water outlet pool is provided with a water outlet pipeline.

10. The vertical flow air-float pool for water treatment as claimed in claim 1, wherein said filter belt is disposed obliquely upward in a direction away from said air-float pool.