CN214360780U - Separation system of oily sewage - Google Patents
Separation system of oily sewage Download PDFInfo
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- CN214360780U CN214360780U CN202120127678.1U CN202120127678U CN214360780U CN 214360780 U CN214360780 U CN 214360780U CN 202120127678 U CN202120127678 U CN 202120127678U CN 214360780 U CN214360780 U CN 214360780U
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- oil
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- hydrocyclone
- activated carbon
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- 239000010865 sewage Substances 0.000 title claims abstract description 43
- 238000000926 separation method Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 119
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 53
- 238000006243 chemical reaction Methods 0.000 claims abstract description 38
- 238000011282 treatment Methods 0.000 claims abstract description 25
- 239000000919 ceramic Substances 0.000 claims abstract description 13
- 239000012855 volatile organic compound Substances 0.000 claims abstract description 9
- 238000004581 coalescence Methods 0.000 claims description 11
- 238000005273 aeration Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 230000000844 anti-bacterial effect Effects 0.000 claims description 4
- 239000003899 bactericide agent Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000003814 drug Substances 0.000 claims description 4
- 238000007790 scraping Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 11
- 230000009931 harmful effect Effects 0.000 abstract 1
- 239000002699 waste material Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 206010033799 Paralysis Diseases 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002070 germicidal effect Effects 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
The utility model discloses a piece-rate system of oily sewage relates to chemical industry water oil separating field. The separation system mainly comprises: the collecting tank is connected with the reaction tank through a centrifugal pump, the upper part of the reaction tank is communicated with an oil-water tank, the upper part of the oil-water tank is connected with a dirty oil tank through an oil scraper and is also connected with a two-stage hydrocyclone through a centrifugal pump, an overflow port of the hydrocyclone II is connected to the dirty oil tank, underflow ports of the two-stage hydrocyclone are connected to the lower part of the high-precision oil-water separator, the upper part of the two-stage hydrocyclone is connected with a middle water tank, and the top of the two-stage hydrocyclone is connected with the dirty oil tank; the oil water tank bottom is connected with the vacuum ceramic filter through the diaphragm pump, and it is connected with middle water pitcher through the vacuum pump, and middle water pitcher passes through the centrifugal pump to be connected with activated carbon filter, and activated carbon filter top is connected with VOCs treatment device through combined type discharge valve, and pipe connection in sewage treatment station is passed through to the bottom. The utility model discloses both reduced the harm that oily sewage caused to the environment, avoided again because of the harmful effects that oily substance content exceeds standard and caused sewage biochemical treatment system.
Description
Technical Field
The utility model relates to a chemical industry water oil separating field specifically is a piece of oily sewage's piece-rate system.
Background
The gas condensate produced in the production process of chemical enterprises and the oil-water discharged by each separator of the reciprocating compressor contain more oil substances, and the existing forms of the oil substances in the sewage are four types, namely floating oil, dispersed oil, emulsified oil and dissolved oil, and the content of the oil substances is about 1200 mg/L. The sewage treatment process of chemical enterprises usually adopts an oil separation-air flotation-biochemical treatment process, and the oily sewage is mixed and diluted with domestic sewage and other production sewage in the actual production process and then enters a sewage treatment station for treatment. If the mixing dilution ratio is not proper or the oil separation and air floatation system fails, the oil content in the sewage entering the biochemical treatment exceeds the standard, so that the oxygenation effect of the biochemical treatment system is influenced, the activity of microorganisms in the activated sludge is reduced, and the sewage biochemical treatment system is paralyzed. In response to the above problems, the oily sewage needs to be pretreated and separated.
Disclosure of Invention
The utility model provides a separation system for oily sewage, which solves the problem that the mixing dilution proportion is not suitable or some device faults can cause the paralysis of a sewage biochemical treatment system in the oily sewage treatment process.
The utility model discloses a realize through following technical scheme: the utility model provides a separation system of oily sewage, includes the collecting pit, the collecting pit passes through the centrifugal pump and is connected with the reaction tank, be provided with the mixer in the reaction tank, reaction tank department still is provided with charge device I, charge device I's measuring pump and reaction tank intercommunication, the upper portion and the oil water sump intercommunication of reaction tank, be provided with the frizing machine on the oil water sump and be connected with the sump through the frizing machine, the oil water sump still is connected with two-stage hydrocyclone, two-stage hydrocyclone is hydrocyclone I and hydrocyclone II respectively, the liquid outlet of oil water sump is connected with the inlet of hydrocyclone I through the centrifugal pump, the overflow mouth and the inlet of hydrocyclone II of hydrocyclone I are connected, the overflow mouth of hydrocyclone II connects to the sump, the underflow opening of hydrocyclone I and hydrocyclone II all connects in high accuracy oil water separator's lower part, a coalescence filter element is arranged in the high-precision oil-water separator, the upper part of the coalescence filter element is connected with the middle water tank, and the top part of the coalescence filter element is connected with the dirty oil pool; the bottom of the oil water tank is connected with a vacuum ceramic filter through a diaphragm pump, the vacuum ceramic filter is connected with an intermediate water tank through a vacuum pump, and a dosing device II is also arranged on the intermediate water tank; metering pump and middle water pitcher intercommunication of charge device II, middle water pitcher passes through the centrifugal pump and is connected with activated carbon filter, upper portion is equipped with the collector pipe and is equipped with the aeration pipe with water cap, lower part in the activated carbon filter, and combined type discharge valve is installed at the top, and the outside is provided with the air-blower, the aeration union coupling of lower part in air-blower export and the activated carbon filter, activated carbon filter passes through combined type discharge valve and VOCs administers the device and is connected, pipe connection is passed through in sewage treatment station in activated carbon filter's bottom.
The utility model relates to a piece-rate system of oily sewage, the flow of main separation is: firstly, the waste oil enters an oil-water separation system for treatment, the separated waste oil is sold or subjected to other treatments, and the sewage enters a sewage treatment station. This system includes the collecting pit, the collecting pit is collected and is had oily sewage, the collecting pit adopts the centrifugal pump to be connected with the reaction tank, carry out the breakdown of emulsion reaction in the reaction tank, the breakdown of emulsion reaction is dosing pump and the reaction tank intercommunication of charge device I, it realizes to add the demulsifier, still be provided with the mixer in it, be used for stirring reaction, make waste oil water carry out the primary separation in the reaction tank, oil is last, water is under, and the upper portion and the profit pond intercommunication of reaction tank, so the oil slick overflows to the profit pond, be provided with the frizing machine on the profit pond, then collect the sump oil in with oil through the frizing machine. The oil water tank is also connected with two-stage hydrocyclones, the two-stage hydrocyclones are a hydrocyclone I and a hydrocyclone II respectively and are used for oil-water separation, the liquid outlet of the oil water tank is connected with the liquid inlet of the hydrocyclone I through a centrifugal pump, the overflow port of the hydrocyclone I is connected with the liquid inlet of the hydrocyclone II, the overflow port of the hydrocyclone II is connected to a dirty oil tank, the two-stage hydrocyclones enable oil to flow upwards from the overflow port to the dirty oil tank, the underflow ports below the hydrocyclones I and II are connected to the lower part of the high-precision oil-water separator, so that the oil and water enter the high-precision oil-water separator for further separation, a coalescence filter element is arranged in the high-precision oil-water separator, the coalescence filter element plays a role in further filtering separation, the upper part of the high-precision oil-water separator is connected with a middle water tank, so that the filtered and separated water enters the middle water tank, the top is connected with a dirty oil pool, so that the filtered and separated waste oil is discharged into the dirty oil pool. In the operation process, the flocculent precipitate that the profit bottom produced, so its bottom is passed through the diaphragm pump and is connected with vacuum ceramic filter, and the diaphragm pump is unscheduled inhales the flocculent precipitate and send to vacuum ceramic filter, and vacuum ceramic filter filters the back, sends the water after filtering to middle water pitcher through the vacuum pump, and mud is as the useless processing of danger. The filtered water at the two positions enters an intermediate water tank, a dosing device II is also arranged on the intermediate water tank, a metering pump of the dosing device II is communicated with the intermediate water tank to add bactericide into the intermediate water tank, finally the intermediate water tank pressurizes the water in the water tank through a centrifugal pump and then sends the water into an active carbon filter, a water collecting pipe and a water cap are arranged at the upper part in the active carbon filter, the lower part is equipped with the aeration pipe, top installation combined type discharge valve, the outside is provided with the air-blower, the aeration union coupling of lower part in air-blower export and the active carbon filter, water is through water-collecting pipe and water cap evenly distributed back top-down with come from the air of air-blower contact the COD who further reduces the aquatic against the current, the active carbon filter top is passed through combined type discharge valve and is administered the device with the VOCs and be connected, filter produced gas and discharge from combined type discharge valve, collect to VOCs and administer the device, the pipeline of the bottom of active carbon filter is passed through to the water after the filtration sends to the sewage treatment station.
The oil-water separation of the oil-containing sewage separation system comprises the following steps:
1) collecting the oily sewage into a collecting tank, and pumping the oily sewage into a reaction tank by using a centrifugal pump to perform demulsification reaction.
2) Be equipped with the mixer in the reaction tank, simultaneously through dosing pump of charge device I to adding the demulsifier in the reaction tank, waste oil water carries out primary separation in the reaction tank, then overflows to the oil water tank from reaction tank upper portion, and the sump oil is collected in the oil slick machine of floating oil on the oil water tank through establishing.
3) And (3) conveying the oil and water in the oil water tank to a two-stage hydrocyclone by using a centrifugal pump, connecting an overflow port of the hydrocyclone II to a dirty oil tank, and connecting a bottom flow port of the two-stage hydrocyclone to a high-precision oil-water separator.
4) Oily waste water is further separated in the high-precision oil-water separator through the mounted coalescence filter element, the waste oil is discharged to a dirty oil pool, and the water is discharged into an intermediate water tank.
5) Flocculent precipitate generated at the bottom of the oil-water pool in the operation process is pumped by a diaphragm pump to a vacuum ceramic filter irregularly, filtered water is delivered to an intermediate water tank, and sludge is treated as hazardous waste.
6) Add germicide in to middle water pitcher through dosing unit II's measuring pump as required, send into activated carbon filter with the water pressure boost of centrifugal pump in with middle water pitcher, through upper portion collector pipe and water cap evenly distributed after top-down with come from the air countercurrent contact of air-blower further reduce the COD of aquatic, gaseous through the combined type discharge valve discharge at activated carbon filter top, concentrate and collect to VOCs treatment device, the water after the filtration is drawn forth from activated carbon filter bottom and is sent to the sewage treatment station.
Compared with the prior art the utility model discloses following beneficial effect has: the utility model provides a separation system of oily sewage adopts multiple method to unite hierarchical use, has realized good oil-water separation effect, and the clearance of oil class material, COD in the oily sewage can reach more than 98% and 90% respectively. The method not only reduces the harm of oily sewage to the environment, but also avoids the adverse effect of overproof oil substance content on a sewage biochemical treatment system, and simultaneously, the recovered dirty oil can also create certain economic benefit.
Drawings
Fig. 1 is a schematic diagram of the system connection of the present invention.
The figures are labeled as follows: 1-a collection pool, 2-a reaction pool, 3-an oil pool, 4-a dosing device I, 5-a stirrer, 6-an oil scraper, 7-a hydrocyclone I, 8-a hydrocyclone II, 9-a dirty oil pool, 10-a diaphragm pump, 11-a vacuum ceramic filter, 12-a vacuum pump, 13-a high-precision oil-water separator, 14-an intermediate water tank, 15-a dosing device II, 16-an activated carbon filter, 17-a blower, 18-a VOCs treatment device and 19-a centrifugal pump.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
A separation system for oily sewage comprises a collecting tank 1, wherein the collecting tank 1 is connected with a reaction tank 2 through a centrifugal pump 19, a stirrer 5 is arranged in the reaction tank 2, a dosing device I4 is further arranged at the position of the reaction tank 2, a metering pump of the dosing device I4 is communicated with the reaction tank 2, the upper portion of the reaction tank 2 is communicated with an oil-water tank 3, an oil scraper 6 is arranged on the oil-water tank 3 and is connected with a dirty oil tank 9 through the oil scraper 6, the oil-water tank 3 is further connected with two-stage hydrocyclones, the two-stage hydrocyclones are a hydrocyclone I7 and a hydrocyclone II 8 respectively, a liquid outlet of the oil-water tank 3 is connected with a liquid inlet of the hydrocyclone I7 through the centrifugal pump 19, an overflow port of the hydrocyclone I7 is connected with a liquid inlet of the hydrocyclone II 8, and an overflow port of the hydrocyclone II is connected to the dirty oil tank 9, the bottom flow ports of the hydraulic cyclone I7 and the hydraulic cyclone II 8 are connected to the lower part of the high-precision oil-water separator 13, a coalescence filter element is arranged in the high-precision oil-water separator 13, the upper part of the high-precision oil-water separator is connected with the middle water tank 14, and the top part of the high-precision oil-water separator is connected with the dirty oil pool 9; the bottom of the oil water tank 3 is connected with a vacuum ceramic filter 11 through a diaphragm pump 10, the vacuum ceramic filter 11 is connected with an intermediate water tank 14 through a vacuum pump 12, and a medicine adding device II 15 is also arranged on the intermediate water tank 14; dosing pump and middle water pitcher 14 intercommunication of charge device II 15, middle water pitcher 14 passes through centrifugal pump 19 and is connected with activated carbon filter 16, upper portion is equipped with the collector pipe and is equipped with the aeration pipe with water cap, lower part in activated carbon filter 16, and combined type discharge valve is installed at the top, and the outside is provided with air-blower 17, the aeration union coupling of lower part in air-blower 17 export and the activated carbon filter 16, activated carbon filter 16 administers device 18 through combined type discharge valve and VOCs and is connected, pipe connection is passed through in sewage treatment station in activated carbon filter 16's bottom.
The following scheme is adopted in the embodiment: a demulsifier is arranged in the chemical adding device I4; and a bactericide is filled in the medicine adding device II 15.
The oil-water separation of the separation system for oily sewage designed by the embodiment comprises the following steps:
1) the oily sewage is collected to a collecting tank 1 in a centralized way, and is sent to a reaction tank 2 by a centrifugal pump 19 for emulsion breaking reaction.
2) Be equipped with mixer 5 in the reaction tank 2, add the demulsifier in to reaction tank 2 through charge device I4's measuring pump simultaneously, waste oil water carries out primary separation in reaction tank 2, then overflows to oil water pool 3 from reaction tank 2 upper portion, and the oil slick is collected in sump 9 through establishing the frizing machine 6 on oil water pool 3.
3) The oil and water in the oil water tank 3 are delivered to a two-stage hydrocyclone by a centrifugal pump 19, the overflow port of a hydrocyclone II 8 is connected to a dirty oil tank 9, and the underflow port of the two-stage hydrocyclone is connected to a high-precision oil-water separator 13.
4) Oily wastewater is further separated in the high-precision oil-water separator 13 through a mounted coalescence filter element, the waste oil is discharged to the dirty oil pool 9, and the water is discharged into the intermediate water tank 14.
5) Flocculent precipitate generated at the bottom of the oil-water pool 3 in the operation process is pumped by a diaphragm pump 10 to a vacuum ceramic filter 11 at irregular intervals, filtered water is sent to an intermediate water tank 14, and sludge is treated as dangerous waste.
6) According to the needs, bactericide is added into the middle water tank 14 through a metering pump of the chemical adding device II 15, water in the middle water tank 14 is pressurized by a centrifugal pump 19 and then is sent into an activated carbon filter 16, the water is uniformly distributed through an upper water collecting pipe and a water cap and then is contacted with air from an air blower 17 in a countercurrent mode from top to bottom, COD in the water is further reduced, the gas is discharged through a combined type exhaust valve at the top of the activated carbon filter 16 and is collected to a VOCs treatment device 18 in a centralized mode, and the filtered water is led out from the bottom of the activated carbon filter 16 and sent to a sewage treatment station.
The scope of the invention is not limited to the above embodiments, and various modifications and changes may be made by those skilled in the art, and any modifications, improvements and equivalents made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. The utility model provides a separation system of oily sewage which characterized in that: including collecting pit (1), collecting pit (1) is connected with reaction tank (2) through centrifugal pump (19), be provided with mixer (5) in reaction tank (2), reaction tank (2) department still is provided with charge device I (4), the measuring pump and the reaction tank (2) intercommunication of charge device I (4), the upper portion and the oil bath (3) intercommunication of reaction tank (2), be provided with on oil bath (3) and scrape oil machine (6) and be connected with sump oil tank (9) through scraping oil machine (6), oil bath (3) still are connected with two-stage hydrocyclone, two-stage hydrocyclone is hydraulic cyclone I (7) and hydrocyclone II (8) respectively, the liquid outlet of oil bath (3) passes through centrifugal pump (19) and is connected with the inlet of hydrocyclone I (7), the swirler mouth of hydrocyclone I (7) is connected with the inlet of hydrocyclone II (8), an overflow port of the hydraulic cyclone II (8) is connected to a dirty oil pool (9), underflow ports of the hydraulic cyclone I (7) and the hydraulic cyclone II (8) are connected to the lower part of a high-precision oil-water separator (13), a coalescence filter element is arranged in the high-precision oil-water separator (13), the upper part of the coalescence filter element is connected with a middle water tank (14), and the top of the coalescence filter element is connected with the dirty oil pool (9);
the bottom of the oil water tank (3) is connected with a vacuum ceramic filter (11) through a diaphragm pump (10), the vacuum ceramic filter (11) is connected with an intermediate water tank (14) through a vacuum pump (12), and a medicine adding device II (15) is also arranged on the intermediate water tank (14); the measuring pump and middle water pitcher (14) intercommunication of charge device II (15), middle water pitcher (14) are connected with activated carbon filter (16) through centrifugal pump (19), upper portion is equipped with the collector pipe and is equipped with the aeration pipe with water cap, lower part in activated carbon filter (16), and combined type discharge valve is installed at the top, and the outside is provided with air-blower (17), aeration union coupling of lower part in air-blower (17) export and activated carbon filter (16), activated carbon filter (16) are administered device (18) through combined type discharge valve and VOCs and are connected, pipe connection is passed through in sewage treatment station in the bottom of activated carbon filter (16).
2. The separation system of oily sewage according to claim 1, characterized in that: and a demulsifier is arranged in the dosing device I (4).
3. The separation system of oily sewage according to claim 1, characterized in that: and a bactericide is filled in the medicine adding device II (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120127678.1U CN214360780U (en) | 2021-01-18 | 2021-01-18 | Separation system of oily sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120127678.1U CN214360780U (en) | 2021-01-18 | 2021-01-18 | Separation system of oily sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214360780U true CN214360780U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120127678.1U Expired - Fee Related CN214360780U (en) | 2021-01-18 | 2021-01-18 | Separation system of oily sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214360780U (en) |
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2021
- 2021-01-18 CN CN202120127678.1U patent/CN214360780U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211008 |
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| CF01 | Termination of patent right due to non-payment of annual fee |