CN216377559U

CN216377559U - Multistage floating type surfactant recovery device

Info

Publication number: CN216377559U
Application number: CN202122727716.XU
Authority: CN
Inventors: 王敏; 李玉祥; 马帅; 吴倩; 王玲玲
Original assignee: Jiangsu Boda Environmental Protection Co ltd
Current assignee: Jiangsu Boda Environmental Protection Co ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-04-26
Anticipated expiration: 2031-11-09

Abstract

The utility model discloses a multistage floating surfactant recovery device, which comprises a plurality of cylinders and an air blower; a water inlet is arranged below the outer side wall of each barrel, a water outlet is arranged above the outer side wall, and a water outlet pipe is communicated between the water inlet and the water outlet between the adjacent barrels; each cylinder is internally provided with an overflow assembly positioned above the corresponding water outlet; an overflow main pipe is arranged outside the cylinder, overflow branch pipes which are in one-to-one correspondence with the cylinder are communicated on the outer side wall of the overflow main pipe, and the end part of each overflow branch pipe penetrates into the corresponding cylinder and then is communicated with the overflow assembly; an air inlet pipe positioned below the corresponding overflow assembly is arranged at the outlet of the air blower, and an aeration disc is arranged at the air outlet of the air inlet pipe. According to the utility model, the air blower and the air inlet pipe are adopted to aerate the sewage so as to form a foam layer in the sewage, the surfactant is gathered in the foam layer, and the foam layer is discharged out of the cylinder body through the overflow assembly and the overflow branch pipe so as to recycle the foam layer.

Description

Multistage floating type surfactant recovery device

Technical Field

The utility model relates to the field of sewage treatment equipment, in particular to a multistage floating type surfactant recovery device.

Background

In order to improve the recovery efficiency of the oil field, the surfactant is added into the oil field water, and the surfactant can generate a large amount of foam in the water body in an aeration state, influence the oxygen exchange between the water body and the air, and have adverse effects on the bioremediation of the water body, the self-purification of the water body and the like.

The foam separation technology is that gas is introduced into a separation device, so that surface active substances in a solution are gathered on a gas-liquid interface, and the surface active substances float upwards along with bubbles and reach the upper part of a solution main body to form a foam layer, so that the foam and a liquid phase main body are separated, and the surface active substances are gathered in the foam layer, so that the purposes of concentrating the surface active substances and purifying the liquid phase main body are achieved. However, this method cannot be reused because only the surfactant is removed, not recovered.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a multistage floating type surfactant recovery device.

The utility model has the innovation points that the sewage is aerated by the blower and the aeration disc to form a foam layer in the sewage, the surfactant is gathered in the foam layer, and the foam layer is discharged out of the cylinder body through the overflow assembly and the overflow branch pipe to recycle the foam layer.

In order to realize the purpose of the utility model, the technical proposal of the utility model is as follows:

a multi-stage floating surfactant recovery device comprises a plurality of vertical cylinders and a blower;

a water inlet is arranged below the outer side wall of each barrel, a water outlet is arranged above the outer side wall, a water outlet pipe is arranged at each water outlet, and one end of each water outlet pipe, which is far away from the water outlet, is communicated with the water inlet of the rear barrel; each cylinder is internally provided with an overflow assembly positioned above the corresponding water outlet; an overflow main pipe is arranged outside the cylinder body, a plurality of overflow branch pipes are communicated with the outer side wall of the overflow main pipe, and one end of each overflow branch pipe, which is far away from the overflow main pipe, penetrates into the corresponding cylinder body and then is communicated with the overflow assembly; and an air inlet pipe communicated with each barrel is arranged at the outlet of the air blower, and an aeration disc positioned below the overflow assembly is arranged at the air outlet of the air inlet pipe. Aerating the sewage by adopting a blower and an aeration disc so as to form a foam layer in the sewage, wherein the surfactant is gathered in the foam layer; the foam layer rises along with the water level of the sewage, and is discharged out of the cylinder body through the overflow assembly and the overflow branch pipe so as to recycle the foam layer. The aeration disc is adopted to release the inlet gas into micro bubbles, so that the separation of the surfactant and the sewage is better promoted.

Preferably, the overflow assembly comprises a fixed block; the outer side wall of the fixed block is fixedly attached to the inner side wall of the barrel; the fixed block is provided with a groove with an upward opening, the middle part of the groove is provided with a lug, the height of the lug is higher than the depth of the groove, and the middle part of the lug is provided with a through hole communicated with the inside of the barrel; the end part of the overflow branch pipe is communicated with the bottom of the groove. The groove and the lug are adopted, so that foam overflowing from the through hole can flow into the groove to be collected, and the foam is conveniently and intensively discharged from the overflow branch pipe. Be provided with the fixed block with the laminating of barrel inside wall, can prevent that sewage from flowing into in the recess and then causing the influence to the foam recovery between fixed block lateral wall and the barrel inside wall.

Preferably, the upper end of the through hole is provided with a circle of saw teeth. The sawtooth is arranged, so that the tiny bubbles discharged from the through hole can be defected, and the bubbles are converted into a liquid form and collected in the groove.

Preferably, the height of the water outlet of the rear cylinder is lower than that of the water outlet of the front cylinder. The height of the water outlet is gradually reduced, so that the water flow in the barrel can be ensured to run in a self-flowing mode, other equipment is not needed, and the cost is saved.

Preferably, each water outlet pipe is provided with an upward bend, and the highest end of the bend is flush with the upper end of the fixing block. The bending is arranged, so that the effluent can be ensured to be sewage to the maximum extent, and the foam is reduced and discharged along with the sewage.

Preferably, a foam collecting tank is arranged outside the barrel, and one end of the overflow main pipe, which is far away from the barrel, is arranged in the foam collecting tank. The foam collection tank enables the surfactant drained from the overflow manifold to be recovered for subsequent use.

Preferably, each of the intake pipes is provided with a check valve and a gas flowmeter. The gas flowmeter can be used for adjusting the air quantity on the air inlet pipe so as to control the air quantity entering the cylinder. The check valve can prevent sewage in the barrel from entering the blower and causing damage to the blower.

The utility model has the beneficial effects that:

1. in the utility model, the sewage is aerated by adopting the air blower and the aeration disc so as to form a foam layer in the sewage, and the surfactant is gathered in the foam layer; the foam layer rises along with the water level of the sewage, and is discharged out of the cylinder body through the overflow assembly and the overflow branch pipe so as to recycle the foam layer. The plurality of cylinders can collect foam layer by layer, so that the water quality of the outlet water of the last cylinder is improved, more surfactants can be collected, and resources are saved.

2. The groove and the lug are adopted in the utility model, so that foam overflowing from the through hole can flow into the groove to be collected, and the foam is conveniently and intensively discharged from the overflow branch pipe. Be provided with the fixed block with the laminating of barrel inside wall, can prevent that sewage from flowing into in the recess and then causing the influence to the foam recovery between fixed block lateral wall and the barrel inside wall.

3. The saw teeth are adopted in the utility model, so that the micro bubbles discharged from the through holes can be cut, converted into liquid form and collected in the grooves.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of an aeration disc.

Fig. 3 is a schematic structural diagram of the overflow assembly.

In the figure:

1. a barrel; 11. a water inlet; 12. a water outlet pipe; 13. bending; 2. a blower; 21. an air inlet pipe; 3. an aeration disc; 4. an overflow assembly; 41. a fixed block; 42. a groove; 43. a bump; 44. a through hole; 5. saw teeth; 6. an overflow main pipe; 61. an overflow branch pipe; 7. a foam collection device; 8. a check valve; 9. a gas flow meter.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

The described embodiments are only some embodiments of the utility model, not all 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.

Example 1

As shown in fig. 1 and 2, the multi-stage floating surfactant recovery device comprises a plurality of vertical cylinders 1 and an air blower 2, wherein an outlet of the air blower 2 is provided with an air inlet pipe 21 respectively communicated with each cylinder 1, an outlet of the air inlet pipe 21 is provided with an aeration disc 3, and the aeration disc 3 is positioned at the bottom in the cylinder 1. Each intake pipe 21 is provided with a check valve 8 and a gas flow meter 9, and the check valve 8 is located between the gas flow meter 9 and the cylinder 1.

As shown in fig. 1, a water inlet 11 is arranged below the outer side wall of each barrel 1, a water outlet is arranged above the outer side wall, and the height of the water outlet of the rear barrel 1 is lower than that of the water outlet of the front barrel 1; and each water outlet is provided with a water outlet pipe 12, one end of each water outlet pipe 12, which is far away from the water outlet, is provided with an upward bend 13, and one end of each bend 13, which is far away from the water outlet, is communicated with the water inlet of the rear barrel body 1.

As shown in fig. 3, each barrel 1 is provided with an overflow assembly 4 therein, and the overflow assembly 4 is located above the corresponding water outlet; the overflow assembly 4 comprises a fixing block 41 with an outer side wall fixedly attached to the inner side wall of the barrel 1, and the upper end of the fixing block 41 is flush with the highest end of the bend 13. Be provided with the recess 42 that the opening faces up on the fixed block 41, the middle part of recess 42 is provided with lug 43, and the groove depth that highly is higher than recess 42 of lug 43, and the middle part of lug 43 opens has the through-hole 44 of the inside intercommunication of barrel 1, and the upper end of through-hole 44 is provided with round sawtooth 5.

As shown in FIG. 1, an overflow header pipe 6 is arranged outside the barrel 1, the outer side wall of the overflow header pipe 6 is communicated with overflow branch pipes 61, and one end of each overflow branch pipe 61, which is far away from the overflow header pipe 6, penetrates into the corresponding barrel 1 and then is communicated with the bottom of the groove 42. The outside of the cylinder body 1 is provided with a foam collecting tank, and one end of the overflow main pipe 6, which is far away from the cylinder body 1, is arranged in the foam collecting tank.

In view of the above, it is desirable to provide,

after sewage enters the first cylinder 1 from the water inlet of the first cylinder 1, the air blower 2 respectively blows gas into the aeration disc 3 through each air inlet pipe 21, and the gas entering the cylinder 1 is released into micro bubbles through the aeration disc 3 to form a bubble layer; when the sewage in the cylinder 1 rises to the position of the water outlet, the sewage is discharged into the next cylinder 1 from the water outlet pipe 12; and the bubble layer floating on the upper layer of the sewage enters the through hole 44, the bubbles are cut by the saw teeth 5 to be converted into a liquid form and collected in the groove 42, and the liquid form is discharged to the foam collecting tank through the overflow branch pipe 61 and the overflow main pipe 6 in sequence, so that the surfactant is collected.

Claims

1. A multi-stage floating surfactant recovery device is characterized by comprising a plurality of vertical cylinders and a blower;

a water inlet is arranged below the outer side wall of each barrel, a water outlet is arranged above the outer side wall, a water outlet pipe is arranged at each water outlet, and one end of each water outlet pipe, which is far away from the water outlet, is communicated with the water inlet of the rear barrel;

each cylinder is internally provided with an overflow assembly positioned above the corresponding water outlet;

an overflow main pipe is arranged outside the cylinder body, a plurality of overflow branch pipes are communicated with the outer side wall of the overflow main pipe, and one end of each overflow branch pipe, which is far away from the overflow main pipe, penetrates into the corresponding cylinder body and then is communicated with the overflow assembly;

and an air inlet pipe communicated with each barrel is arranged at the outlet of the air blower, and an aeration disc positioned below the overflow assembly is arranged at the air outlet of the air inlet pipe.

2. The multi-stage floating surfactant recovery device of claim 1, wherein the overflow assembly comprises a fixed block;

the outer side wall of the fixed block is fixedly attached to the inner side wall of the barrel;

the fixed block is provided with a groove with an upward opening, the middle part of the groove is provided with a lug, the height of the lug is higher than the depth of the groove, and the middle part of the lug is provided with a through hole communicated with the inside of the barrel;

the end part of the overflow branch pipe is communicated with the bottom of the groove.

3. The multi-stage floating type surfactant recovery device according to claim 2, wherein the upper end of the through-hole is provided with a ring of serrations.

4. The multi-stage floating type surfactant recovery device according to claim 3, wherein the height of the water outlet of the rear cylinder is lower than the height of the water outlet of the front cylinder.

5. The multi-stage floating type surfactant recovery device according to claim 4, wherein each water outlet pipe is provided with an upward bend, and the highest end of the bend is flush with the upper end of the fixed block.

6. The multi-stage floating type surfactant recovery device according to claim 1, wherein a foam collecting tank is arranged outside the cylinder, and one end of the overflow main pipe, which is far away from the cylinder, is arranged in the foam collecting tank.

7. The multi-stage floating type surfactant recovery device according to claim 6, wherein each of said intake pipes is provided with a check valve and a gas flow meter.