CN210480921U

CN210480921U - Dissolved air flotation device

Info

Publication number: CN210480921U
Application number: CN201921063424.7U
Authority: CN
Inventors: 杨爱清; 杨爱成; 程智; 肖和清; 陈苏琼
Original assignee: Yixing Bohui Environmental Technology Co ltd
Current assignee: Yixing Bohui Environmental Technology Co ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-05-08
Anticipated expiration: 2029-07-09

Abstract

The utility model discloses a dissolve gas air supporting device relates to the sewage treatment field, and it is complicated, the system operation effect is not good to have the device mostly for solving current air supporting treatment facility among the prior art, and the suspended solid gets rid of the problem of inefficiency. Dissolve one side of gas pitcher top and install mixed reflux unit, one side of mixed reflux unit is provided with the valve, one side of valve is provided with the air compressor machine, dissolve the below of gas pitcher and install flange, the pipeline is installed to flange's below, the gas water pump is dissolved in one side of pipeline is installed, agitator motor is installed to the top in air supporting pond, the pivot is installed to agitator motor's lower extreme, the stirring rake is installed to the both sides of pivot, one side of agitator motor is provided with the chain, the gear is installed to the below of chain, the outlet valve door is installed to the top of delivery port, the water inlet is installed to one side in air supporting pond, dissolve the below of gas pitcher and install the electric box.

Description

Dissolved air flotation device

Technical Field

The utility model relates to a sewage treatment technical field specifically is dissolved air flotation device.

Background

The air flotation device is characterized in that air is introduced into water in a micro-bubble mode, so that micro-bubbles are adhered to particles suspended in the water to form a water, gas and particle three-phase mixed system, after the particles are adhered with the bubbles, the particles float upwards with the density smaller than that of the water to form a scum layer, the scum layer is separated from the water, and the air is introduced into the water to generate micro-bubbles, so that fine suspended matters in the water are adhered to the air bubbles and float upwards to the water surface along with the bubbles to form scum, thereby achieving the purposes of removing the suspended matters in the water and improving the water quality, wherein the smaller the diameter of the bubbles is, the larger the number of the bubbles; inorganic salts in the water can accelerate the breaking and merging of bubbles and reduce the air floatation effect; the coagulant is added to promote the coagulation of suspended matters, so that the suspended matters adhere to bubbles and float upwards; the flotation agent can be added to convert the surface of the hydrophilic particles into hydrophobic substances which are adhered to the bubbles and float upwards along with the bubbles.

In the water supply and drainage treatment process, for the removal of tiny suspended matters with specific gravity close to water, generally, the air flotation separation technology is an effective method, however, most of the existing air flotation treatment equipment has the defects of complicated device, poor system operation effect and low suspended matter removal efficiency; therefore, the market urgently needs to develop a dissolved air floatation device to help people solve the existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dissolve gas air supporting device to there is the device complicacy, the system operation effect is not good mostly in the current air supporting treatment facility that provides in solving above-mentioned background art, and the suspended solid gets rid of the problem of inefficiency.

In order to achieve the above object, the utility model provides a following technical scheme: dissolved air flotation device, including dissolving the gas pitcher, one side of dissolving the gas pitcher is provided with the air supporting pond, first drain is installed to the preceding terminal surface in air supporting pond, one side of first drain is provided with the second drain, one side of second drain is provided with the third drain, one side of third drain is provided with the scum outlet, one side of scum outlet is provided with the delivery port, mix reflux unit is installed to one side above dissolving the gas pitcher, one side of mix reflux unit is provided with the valve, one side of valve is provided with the air compressor machine, flange is installed to the below of dissolving the gas pitcher, the pipeline is installed to the below of flange, dissolved air water pump is installed to one side of pipeline, agitator motor is installed to the top in air supporting pond, the pivot is installed to agitator motor's lower extreme, the stirring rake is installed to the both sides of pivot, one side of agitator motor is provided with the chain, the gear is installed to the below of chain, the outlet valve door is installed to the top of delivery port, the water inlet is installed to one side in air supporting pond, dissolve the below of gas pitcher and install the electric box.

Preferably, the dissolved air tank is hermetically connected with the pipeline through a connecting flange, and the pipeline extends to the inside of the air floatation tank and is hermetically connected with the air floatation tank.

Preferably, one end of the mixed reflux device is hermetically connected with the dissolved air tank through a connecting flange, the other end of the mixed reflux device is hermetically connected with a valve, and the valve is connected with the air flotation tank.

Preferably, the inside of the mixed reflux device is provided with a spiral propelling plate, one side of the mixed reflux device is provided with a driving motor, and the driving motor and the spiral propelling plate are fixedly connected through a coupler.

Preferably, a speed reducer is installed below the stirring motor, the speed reducer is fixedly connected with the rotating shaft through a coupler, and the number of the stirring motors is two.

Preferably, the front end face of the water inlet is provided with a cover, and the electric box is electrically connected with the stirring motor, the air compressor and the dissolved air water pump respectively.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a setting through mixing reflux unit, when dissolving gas air supporting device operation, often the scrubbing rate is not up to standard, need to remove once dirty water and put into to the air supporting pond once more, open the valve, absorb the suspended solid to mixing reflux unit in through the air compressor machine, drive the spiral pushing plate through mixing reflux unit inside driving motor and make the suspended solid push to dissolve in the jar, decontaminate once more, decontamination efficiency has been improved, rethread agitator motor drives pivot and stirring rake, bubble production in the air supporting pond inside, the effect of air water mixing has been played, increase bubble volume on the contrary after mixing reflux unit with same tolerance, mix air water liquid complete mixing into micron order microbubble, improve the system operation effect, the suspended solid clearance can reach 92-95%.

Drawings

FIG. 1 is a top view of the dissolved air flotation device of the present invention;

FIG. 2 is a front sectional view of the dissolved air flotation device of the present invention;

fig. 3 is a side sectional view of the dissolved air flotation device of the present invention.

In the figure: 1. a dissolved air tank; 2. an air floatation tank; 3. a first vent; 4. a second vent; 5. a third vent; 6. a slag discharge port; 7. a water outlet; 8. a mixing reflux unit; 9. a valve; 10. an air compressor; 11. a connecting flange; 12. a pipeline; 13. a dissolved air water pump; 14. a stirring motor; 15. a rotating shaft; 16. a stirring paddle; 17. a chain; 18. a gear; 19. a water outlet valve; 20. a water inlet; 21. an electrical box.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: the dissolved air flotation device comprises a dissolved air tank 1, an air flotation tank 2 is arranged on one side of the dissolved air tank 1, a first vent port 3 is arranged on the front end face of the air flotation tank 2, a second vent port 4 is arranged on one side of the first vent port 3, a third vent port 5 is arranged on one side of the second vent port 4, a slag discharge port 6 is arranged on one side of the third vent port 5, a water outlet 7 is arranged on one side of the slag discharge port 6, a mixed reflux device 8 is arranged on one side above the dissolved air tank 1, a valve 9 is arranged on one side of the mixed reflux device 8, an air compressor 10 is arranged on one side of the valve 9, a connecting flange 11 is arranged below the dissolved air tank 1, a pipeline 12 is arranged below the connecting flange 11, a dissolved air water pump 13 is arranged on one side of the pipeline 12, a stirring motor 14 is arranged above the air flotation tank 2, a rotating shaft 15 is arranged at the lower end of, a chain 17 is arranged at one side of the stirring motor 14, a gear 18 is arranged below the chain 17, a water outlet valve 19 is arranged above the water outlet 7, a water inlet 20 is arranged at one side of the air flotation tank 2, and an electric box 21 is arranged below the air dissolving tank 1.

Further, dissolve gas pitcher 1 and pass through flange 11 and pipeline 12 sealing connection, pipeline 12 extends to 2 inside and 2 sealing connection in air supporting pond, and sewage gets into through air supporting pond 2 and dissolves gas pitcher 1, and waste water aerates under the ordinary pressure of dissolving in the gas pitcher 1, makes it fully dissolve gas, then under vacuum condition, makes and dissolves gas in the waste water and appear, forms the microbubble, and adhesion particle impurity floats and forms foam dross in the surface of water.

Further, the one end of mixing reflux unit 8 with dissolve gas pitcher 1 and pass through flange 11 sealing connection, mixing reflux unit 8's the other end and valve 9 sealing connection, valve 9 is connected with air supporting pond 2, absorbs the suspended solid to mixing reflux unit 8 in through air compressor machine 10, drives spiral catch plate through the inside driving motor of mixing reflux unit 8 and makes the suspended solid push into to dissolving gas pitcher 1 in, decontaminate once more.

Further, the inside of the mixed reflux device 8 is provided with a spiral propelling plate, one side of the mixed reflux device 8 is provided with a driving motor, the driving motor and the spiral propelling plate are fixedly connected through a coupler, bubbles are generated inside the air floatation tank 2, the air-water mixing effect is achieved, the amount of the bubbles is increased after the same air amount passes through the mixed reflux device 8, air, water and liquid are completely mixed into micron-sized small bubbles, and the system operation effect is improved.

Further, a speed reducer is installed below the stirring motor 14, the speed reducer is fixedly connected with the rotating shaft 15 through a coupler, the stirring motor 14 is provided with two stirring motors, the rotating shaft 15 and the stirring paddle 16 are driven through the stirring motor 14, bubbles are generated inside the air floatation tank 2, and the air-water mixing effect is achieved.

Further, a cover is installed on the front end face of the water inlet 20, the electric box 21 is electrically connected with the stirring motor 14, the air compressor 10 and the dissolved air water pump 13 respectively, and appropriate voltage is modulated for the stirring motor 14, the air compressor 10 and the dissolved air water pump 13 through the electric box 21.

The working principle is as follows: during the use, open the flap of water inlet 20, pour waste water into 2 insides in air supporting pond, sewage gets into through air supporting pond 2 and dissolves gas pitcher 1, waste water is aeration under the ordinary pressure that dissolves in the gas pitcher 1, make it fully dissolve gas, then under the vacuum condition, make dissolved gas in the waste water separate out, form the microbubble, adhesion granule impurity come-up forms the foam dross in the surface of water, drive pivot 15 and stirring rake 16 through agitator motor 14, at 2 inside gassing of air supporting pond, the effect that air water mixes has been played, open valve 9, absorb the suspended solid to mixing reflux unit 8 in through air compressor machine 10, drive the spiral catch plate through mixing reflux unit 8 inside driving motor and make the suspended solid push into to dissolving in the gas pitcher 1, decontaminate once more, after the decontamination is accomplished, open outlet valve 19, discharge water after will filtering through delivery port 7 discharges.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Dissolve gas air supporting device, including dissolving gas pitcher (1), its characterized in that: one side of the dissolved air tank (1) is provided with an air flotation tank (2), a first vent hole (3) is installed on the front end face of the air flotation tank (2), a second vent hole (4) is arranged on one side of the first vent hole (3), a third vent hole (5) is arranged on one side of the second vent hole (4), a slag discharge hole (6) is arranged on one side of the third vent hole (5), a water outlet (7) is arranged on one side of the slag discharge hole (6), a mixed reflux device (8) is installed on one side above the dissolved air tank (1), a valve (9) is arranged on one side of the mixed reflux device (8), an air compressor (10) is arranged on one side of the valve (9), a connecting flange (11) is installed below the dissolved air tank (1), a pipeline (12) is installed below the connecting flange (11), and a dissolved air water pump (13) is installed on one side of the pipeline (12), agitator motor (14) are installed to the top in air supporting pond (2), pivot (15) are installed to the lower extreme of agitator motor (14), stirring rake (16) are installed to the both sides of pivot (15), one side of agitator motor (14) is provided with chain (17), gear (18) are installed to the below of chain (17), outlet valve door (19) are installed to the top of delivery port (7), water inlet (20) are installed to one side of air supporting pond (2), dissolve the below of gas pitcher (1) and install electric box (21).

2. The dissolved air flotation device according to claim 1, wherein: the dissolved air tank (1) is hermetically connected with a pipeline (12) through a connecting flange (11), and the pipeline (12) extends to the inside of the air floatation tank (2) and is hermetically connected with the air floatation tank (2).

3. The dissolved air flotation device according to claim 1, wherein: one end of the mixed reflux device (8) is in sealing connection with the dissolved air tank (1) through a connecting flange (11), the other end of the mixed reflux device (8) is in sealing connection with a valve (9), and the valve (9) is connected with the air flotation tank (2).

4. The dissolved air flotation device according to claim 1, wherein: the inside of mixing reflux unit (8) is provided with the spiral propulsion board, one side of mixing reflux unit (8) is provided with driving motor, and driving motor passes through shaft coupling fixed connection with the spiral propulsion board.

5. The dissolved air flotation device according to claim 1, wherein: the speed reducer is installed to the below of agitator motor (14), and the speed reducer passes through shaft coupling fixed connection with pivot (15), agitator motor (14) are provided with two.

6. The dissolved air flotation device according to claim 1, wherein: the electric box is characterized in that a cover is installed on the front end face of the water inlet (20), and the electric box (21) is electrically connected with the stirring motor (14), the air compressor (10) and the dissolved air water pump (13) respectively.