CN220999313U - Double-cylinder tank rotational flow air floatation device - Google Patents
Double-cylinder tank rotational flow air floatation device Download PDFInfo
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- CN220999313U CN220999313U CN202322862121.4U CN202322862121U CN220999313U CN 220999313 U CN220999313 U CN 220999313U CN 202322862121 U CN202322862121 U CN 202322862121U CN 220999313 U CN220999313 U CN 220999313U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 230000003044 adaptive effect Effects 0.000 claims abstract description 5
- 230000006978 adaptation Effects 0.000 claims description 4
- 239000010865 sewage Substances 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 8
- 239000003921 oil Substances 0.000 description 22
- 238000005188 flotation Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a double-cylinder rotational flow air floatation device which comprises an outer cylinder, wherein an inner cylinder is sleeved in the center line of the outer cylinder, water inlet pipelines are connected to the middle lower parts of the two sides of the outer cylinder in an adaptive manner, and an oil drain port is arranged at the bottom of the inner cylinder. The lower baffle is arranged at the middle lower part of the outer walls of the two sides of the inner cylinder tank in an adaptive manner, the bottom of the outer cylinder tank is provided with a water outlet pipeline, and the water outlet pipeline comprises a main water outlet pipe and a secondary water outlet pipe. The secondary drain pipe is connected with a water inlet of the dissolved air pump, and an air inlet of the dissolved air pump is connected with a dissolved air inlet pipe. The water outlet of the dissolved air pump is connected with a return pipeline, the other end of the return pipeline is positioned in the area between the outer cylinder tank and the inner cylinder tank, and a release device is arranged at the port. A wire mesh demister is arranged in the top area in the outer cylinder tank, and an air outlet is arranged between the wire mesh demister and the outer cylinder tank body. The device has simple structure, obvious treatment effect on various oily and suspended matter-containing sewage, and stable and reliable operation.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment equipment, and particularly relates to a double-drum tank cyclone air floatation device.
Background
The source of the oily sewage in China is very wide, the oily sewage can be generated in the processes of steel refining, industrial production, petroleum exploitation, pesticide and food processing production and the like, and the oily pollutants mainly exist in four forms, namely dissolved oil, dispersed oil, floating oil and emulsified oil.
(1) In petrochemical industry, oil-containing sewage is produced at almost any stage from initial exploitation to final transportation and consumption, and under the rapid development of scientific and technical level in China, tertiary oil recovery technology in China is widely applied, the oil displacement effect is improved, but the composition of the sewage is more complex.
(2) The chemical pharmaceutical engineering mainly sources oily sewage of high concentration technology, and in the manufacturing process, a large amount of water and lubricating oil can be used in the stages of raw material reaction, product separation, raw material pretreatment and the like, so that a large amount of oily sewage can be generated in the later stage.
(3) In the metal smelting industry, during the process of smelting metal, whether the material contacted with oil or the equipment contacted with oil, the material is cooled, cleaned and lubricated, and lubricating oil can be directly contacted with the material, so that oily sewage is formed.
(4) In the food processing and production process of China, oily sewage is generated in the stages of equipment cleaning, machine lubrication and the like.
The traditional oily sewage treatment technology comprises a sedimentation separation method, a coarse graining method, a filtration method, a membrane separation method and the like. However, with the improvement of technical progress and the improvement of national requirements on environmental protection, the requirements on sewage treatment effect are also higher and higher, and the traditional treatment technology cannot meet the requirements of enterprise development in terms of parameters such as occupied area, treatment cost, efficiency, effluent index and the like.
Disclosure of utility model
In order to solve all or part of the problems, the utility model aims to provide a double-drum tank cyclone air floatation device which has a compact structure and short hydraulic retention time. The cyclone air floatation device has the advantages of small volume and occupied area, high treatment efficiency, stable effluent quality and good process adaptability.
The utility model provides a double-cylinder rotational flow air floatation device which comprises an outer cylinder, an inner cylinder and a dissolved air pump, wherein the middle lower part adaptation positions on two sides of the outer cylinder are respectively connected with a water inlet pipeline, the bottom of the inner cylinder is provided with an oil discharge port, the bottom of the outer cylinder is provided with a water outlet pipeline, the water outlet pipeline is divided into a main water outlet pipe and a secondary water outlet pipe, the secondary water outlet pipe is connected with a water inlet of the dissolved air pump, an air inlet of the dissolved air pump is connected with a dissolved air inlet pipe, a water outlet of the dissolved air pump is connected with a return pipeline, the other end of the return pipeline is positioned in an area between the outer cylinder and the inner cylinder, and a release device is arranged at a port of the return pipeline.
Optionally, the outer cylinder tank is a middle cylinder, a top arc body and a bottom cone body, and the inner cylinder tank is a cylinder.
Optionally, a wire mesh demister is arranged in the top area in the outer cylinder, and an air outlet is arranged at an adaptive position between the wire mesh demister and the cylinder body of the outer cylinder.
Optionally, lower baffles are arranged at the middle and lower adapting positions of the outer walls of the two sides of the inner cylinder tank along the circumference of the outer wall.
According to the technical scheme, the double-cylinder tank cyclone air floatation device provided by the utility model has the following advantages:
Compared with the prior art, the cyclone air flotation device has the advantages of more outstanding air flotation effect, more compact structure, small equipment volume and small occupied area, and can obtain better oil removal effect.
Additional features and advantages of the utility model will be set forth in the description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and do not limit the utility model.
Fig. 1 is a schematic structural diagram of a double-tank cyclone air floatation device in an embodiment of the utility model.
Reference numerals illustrate:
1. A water inlet pipeline; 2. an outer cylinder can; 3. an inner cylinder tank; 4. a lower baffle; 5. an oil drain port; 6. a main drain pipe; 7. a secondary drain pipe; 8. a dissolved air inlet pipe; 9. a dissolved air pump; 10. a return line; 11. a release device; 12. a wire mesh mist eliminator; 13. and an air outlet.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in detail hereinafter with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be arbitrarily combined with each other.
The invention discloses a double-drum cyclone air floatation device for treating sewage containing oil and suspended matters, which comprises an outer drum 2, an inner drum 3 with the same center line, a main drain pipe 6, a secondary drain pipe 7, a dissolved air pump 9 and a return pipeline 10. An air outlet 13, a wire mesh demister 12, a water inlet pipeline 1, a lower baffle 4, a main drain pipe 6 and an oil drain port 5 are respectively arranged in the double-cylinder tank body from top to bottom.
A specific embodiment of the cyclone air floatation device is described in detail below with reference to fig. 1.
The outer cylinder tank 2 is of a middle cylinder, a top arc body and a bottom cone structure, and the inner cylinder tank 3 is of a cylinder structure.
The bottom of the inner cylinder tank 3 is connected with the outer cylinder tank 2, and the water inlet pipeline 1 is provided with two and is connected with the middle lower part adaptation position on two sides of the outer cylinder tank 2. The lower baffle is provided with a plurality of, and is connected in the lower part adaptation position in the outer wall of inner tube jar 3 both sides to arrange along the outer wall a week of inner tank body 3.
The oil drain port 5 is arranged at the bottom of the outer cylinder tank 2, one end of the secondary drain pipe 7 is connected with the outer cylinder tank 2, the other end is connected with the water inlet of the dissolved air pump 9, the air inlet of the dissolved air pump 9 is connected with the dissolved air inlet pipe 8, the primary drain pipe 6 is connected to the secondary drain pipe 7, and the primary drain pipe 6 is positioned between the outer cylinder tank 2 and the dissolved air pump 9.
One end of the return line 10 is connected to the water outlet of the dissolved air pump 9, the other end is located in the area between the outer cylinder tank 2 and the inner cylinder tank 3, and the release device 11 is installed at the port of the return line 10. The wire mesh demister 12 is arranged in the top area in the outer cylinder tank, and the air outlet 13 is arranged at an adaptive position between the wire mesh demister 12 and the cylinder body of the outer cylinder tank 2.
The sewage containing oil and suspended matters enters the outer cylinder tank 2 tangentially through tangential water inlet pipelines 1 on two sides of the wall of the outer cylinder tank 2 to form rotational flow. And simultaneously, the air-dissolving water which is released by the release device 11 and is formed by mixing the water discharged from the secondary drain pipe 7 and the air-dissolving air inlet pipe 8 through the air-dissolving pump 9 is mixed, and the separation effect is further enhanced by combining micro bubbles with rotational flow.
In the rotational flow process, oil, gas and water in the water are separated, separated dirty oil is blocked by a lower baffle plate 4 at the inner bottom of the outer cylinder tank 2, vortex flow is generated, the separation of the water and the oil gas is promoted, the oil gas continuously rises in the area between the outer cylinder tank 2 and the inner cylinder tank 3, and finally overflows and is collected in the inner cylinder tank 3 and is discharged from an oil discharge port 5 at the bottom of the inner cylinder tank 3.
The separated sewage is collected in the bottom area of the intermediate space between the inner cylinder tank 3 and the outer cylinder tank 2, a part of sewage is discharged from the main drain pipe 6, and a part of sewage is discharged from the secondary drain pipe 7 and is fully mixed with gas in the dissolved gas inlet pipe 8 through the dissolved gas pump 9 to form reflux dissolved gas water, and the reflux water flows back to the intermediate space between the inner cylinder tank 3 and the outer cylinder tank 2 through the reflux pipeline 10 and is released through the release device 11, so that the cyclone air flotation effect is further enhanced.
The separated gas is discharged from the gas outlet 13 at the top of the outer cylinder tank 2 after being further processed by the wire mesh demister 12 at the top of the outer cylinder tank 2, thereby realizing the three-phase separation effect of water, oil and gas.
Compared with the traditional air flotation device, the invention has the following advantages:
(1) Compared with the traditional air flotation device, the air dissolution efficiency is higher, the reaction speed is faster, and the residence time is shorter;
(2) Compared with the traditional air flotation device, the air flotation device has the advantages of high surface load, low energy consumption and smaller occupied area;
(3) Compared with the traditional air flotation device, the air flotation device has no chemical agent addition, pure physical demulsification, no secondary pollution, safety and environmental protection.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is two or more unless specifically defined otherwise.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (4)
1. The utility model provides a double-drum jar whirl air supporting device, includes urceolus jar (2), inner tube jar (3), dissolved air pump (9), its characterized in that, lower part adaptation position is connected with inlet tube (1) respectively in urceolus jar (2) both sides, inner tube jar (3) bottom is equipped with oil drain port (5), urceolus jar (2) bottom is equipped with the outlet pipe way, the outlet pipe way divide into main drain pipe (6) and secondary drain pipe (7), secondary drain pipe (7) are connected with the water inlet of dissolved air pump (9), the air inlet of dissolved air pump (9) is connected with dissolved air intake pipe (8), the delivery port of dissolved air pump (9) is connected with return line (10), the other end of return line (10) is located the region between urceolus jar (2) and inner tube jar (3), and the port is equipped with release (11).
2. The double-drum tank rotational flow air floatation device according to claim 1, wherein the outer drum tank (2) is a middle cylinder, a top arc body and a bottom cone body, and the inner drum tank (3) is a cylinder.
3. The double-drum tank rotational flow air floatation device according to claim 1 or 2, wherein a wire mesh demister (12) is arranged in the inner top area of the outer drum tank (2), and an air outlet (13) is arranged at an adaptive position between the wire mesh demister (12) and the drum body of the outer drum tank (2).
4. A double-drum cyclone air floatation device according to claim 3, wherein lower baffles (4) are arranged along the circumference of the outer wall at the middle and lower adapting positions of the outer walls at two sides of the inner drum (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322862121.4U CN220999313U (en) | 2023-10-24 | 2023-10-24 | Double-cylinder tank rotational flow air floatation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322862121.4U CN220999313U (en) | 2023-10-24 | 2023-10-24 | Double-cylinder tank rotational flow air floatation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220999313U true CN220999313U (en) | 2024-05-24 |
Family
ID=91112076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322862121.4U Active CN220999313U (en) | 2023-10-24 | 2023-10-24 | Double-cylinder tank rotational flow air floatation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220999313U (en) |
-
2023
- 2023-10-24 CN CN202322862121.4U patent/CN220999313U/en active Active
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