CN111410257A - Oil-containing sludge and sewage separation device - Google Patents
Oil-containing sludge and sewage separation device Download PDFInfo
- Publication number
- CN111410257A CN111410257A CN202010119222.0A CN202010119222A CN111410257A CN 111410257 A CN111410257 A CN 111410257A CN 202010119222 A CN202010119222 A CN 202010119222A CN 111410257 A CN111410257 A CN 111410257A
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- Prior art keywords
- cavity
- oil
- centrifugal
- outlet
- water outlet
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
- B02C18/0092—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage for waste water or for garbage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/08—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
- B02C18/10—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers with drive arranged above container
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
- B02C2201/063—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage for waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
Abstract
The invention relates to an oil-containing sludge and sewage separating device which comprises a water collecting tank, wherein the water collecting tank comprises an oil removing cavity and a separating cavity, the oil removing cavity is separated from the separating cavity through a second partition plate, an oil outlet and an air outlet hole are formed in the oil removing cavity, the oil outlet is positioned on one side of the oil removing cavity, the separating cavity comprises a centrifugal cavity and a water outlet cavity sleeved on the outer side of the centrifugal cavity, the centrifugal cavity is separated from the water outlet cavity through a first partition plate, a separating mechanism for separating sludge and an aeration device for generating oil-containing bubbles are arranged in the centrifugal cavity, the aeration device is positioned at the bottom of the centrifugal cavity, a sludge outlet is formed in the bottom of the centrifugal cavity, a water outlet is formed in the water outlet cavity, the oil removing cavity, the centrifugal cavity and the water outlet cavity are communicated with each other, and one side of the. The invention has simple structure, adopts the cooperation of the aeration disc and the spiral blade, effectively separates water, oil and mud, and has wide application prospect.
Description
Technical Field
The invention relates to an oil-containing sewage and sludge separation device, and belongs to the technical field of sewage treatment.
Background
The oily sewage of the oil field is mainly obtained from the processes of H phase separation of oil well produced liquid, dehydration (salt) treatment, oil well cleaning and back flushing of equipment. The early developed oil field mostly adopts a treatment process of 'gravity settling-air flotation (hydrocyclone) -filtration', and the oily sewage after treatment reaches the standard is mainly reinjected into the stratum or directly discharged outside. As the development of oil fields enters the middle and later stages, the average water content in the produced liquid of the oil well rises year by year, the total amount of the oil-containing sewage generated by the oil field even reaches about 95 percent, and the total amount of the oil-containing sewage generated along with the oil field is increased by 2 to 3 times and exceeds the maximum design amount of the original treatment process flow. In addition, because the oily sewage contains mineral salts, the environment or stratum can be greatly influenced by direct discharge or reinjection which does not reach the standard. In order to protect the ecological environment, the national establishment of the discharge standard of petroleum is stricter, and the discharge requirement of enterprises in the newly issued discharge standard of oily sewage is greatly improved. Therefore, how to effectively control and treat the oily sewage becomes a great problem for oil field production enterprises.
For onshore oil fields, large-scale treatment equipment such as a gravity settling tank, an air floatation tank and the like is added in the sewage treatment process due to the consideration of no occupied space, and the designed treatment capacity is improved to a certain extent. However, as the total amount of sewage increases, the retention time in the gravity settling tank is inevitably shortened, so that the oil content of the sewage entering the subsequent treatment equipment is improved, and the oil content of the discharged water does not reach the standard.
By combining multiple conventional water treatment technologies, this is desirable for compact and efficient purposes. Among them, the air flotation and rotational flow integrated (or called as air flotation) treatment technology based on the combination of rotational flow and air flotation two unit treatment technologies attracts the most attention.
However, the sludge content in the oil-containing sludge is high, the existing air floatation and rotational flow integrated (or called air floatation) treatment device can only separate oil and water, so that the sludge content in the separated water is high, secondary treatment is needed, the sludge easily blocks a pipeline, the sludge at the bottom of the regular cleaning device is needed, and the operation cost of an enterprise is increased.
Disclosure of Invention
The invention provides an oil-containing sludge and sewage separation device, which aims to solve the problem that the oil-containing sludge has high sludge content and can not be separated, and comprises a water collection tank, the water collecting tank comprises an oil removing cavity and a separation cavity, the oil removing cavity and the separation cavity are separated by a second partition plate, an oil outlet and an air outlet hole are arranged in the oil removing cavity, the oil outlet is positioned at one side of the oil removing cavity, the separation cavity comprises a centrifugal cavity and a water outlet cavity sleeved outside the centrifugal cavity, the centrifugal cavity is separated from the water outlet cavity by a first partition plate, a separation mechanism for separating sludge and an aeration device for generating oil-containing bubbles are arranged in the centrifugal cavity, the aeration device is positioned at the bottom of the centrifugal cavity, the bottom of the centrifugal cavity is provided with a sludge outlet, the water outlet cavity is internally provided with a water outlet, the oil removing cavity, the centrifugal cavity and the water outlet cavity are communicated with each other, and one side of the centrifugal cavity is communicated with the water inlet.
Preferably, the second partition plate is provided with filter holes. The sewage to be treated can pass through the filtering holes to reach the oil removing cavity and be pumped away from the oil outlet.
Furthermore, centrifugal holes are formed in the first partition plate, and the size of each centrifugal hole is smaller than that of the sludge.
Preferably, the separating mechanism comprises a motor, a protective cover, a cutter shaft and a spiral blade arranged on the cutter shaft, the motor is fixedly arranged on the second partition plate through the protective cover, and a motor shaft of the motor is in transmission connection with the cutter shaft. The motor drives the cutter shaft to rotate, so that the cutter shaft drives the spiral blade to rotate, large-particle sludge in sewage is crushed, the spiral blade generates vortex, centrifugal force is generated, water and mud are thrown simultaneously to throw away the first partition plate, the mud moves downwards from the first partition plate due to the fact that the mud is large, the mud flows out from the mud outlet, and the water enters the water outlet cavity from the centrifugal hole of the first partition plate and flows out from the water outlet.
Furthermore, the aeration device comprises an aeration disc, an air inlet pipe and an aeration pump which are fixedly arranged in the centrifugal cavity, the air inlet pipe penetrates through the water outlet cavity and the centrifugal cavity to be communicated with the aeration disc, and the air inlet pipe is connected with the aeration pump. The aeration disc generates bubbles which are fully contacted with the sewage containing oil, and the bubbles float to the oil removal cavity and are discharged to the outside from the oil outlet.
Preferably, in order to better drain water and mud, the bottoms of the centrifugal cavity and the water outlet cavity are both conical, and the water outlet and the mud outlet are both arranged at the lowest part of the conical.
Has the advantages that: the invention firstly injects the oily wastewater to be treated into the water collecting tank, starts the aeration pump to enable the aeration disc to generate micro bubbles, and fully contacts the generated micro bubbles with the oily wastewater to realize high-efficiency flotation, firstly, oil content is separated and removed, then the cutter shaft is driven to rotate under the action of the rotating motor, large-particle sludge contained in the wastewater is crushed by the spiral blade, then, the vortex generated by the rotation of the spiral blade generates centrifugal force, so that water and mud are centrifugally whipped at the same time, the mud falls into the mud outlet to be discharged due to the separation of larger particle size by the centrifugal holes, and water is whipped out by the centrifugal force to enter the water outlet cavity and is discharged from the water outlet, thereby finally realizing the separation of oil, water and mud in the oily wastewater, and having wide application prospect.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
1. a water collection tank; 2. removing an oil cavity; 3. a second separator; 4. an air outlet; 5. an oil outlet;
6. a water outlet cavity; 7. a centrifugal chamber; 8. a first separator; 9. a sludge outlet; 10. a water outlet;
11. a protective cover; 12. a motor; 13. a cutter shaft; 14. a helical blade; 15. an aeration disc;
16. an air inlet pipe; 17. an aeration pump.
Detailed Description
An oil-containing sludge and sewage separation device comprises a water collecting tank 1, wherein the water collecting tank 1 comprises an oil removing cavity 2 and a separation cavity, the oil removing cavity 2 is separated from the separation cavity by a second clapboard 3, an oil outlet 5 and an air outlet 4 are arranged in the oil removing cavity 2, the oil outlet 5 is positioned at one side of the oil removing cavity 2, the separation cavity comprises a centrifugal cavity 7 and a water outlet cavity 6 sleeved outside the centrifugal cavity 7, the centrifugal cavity 7 is separated from the water outlet cavity 6 by a first partition plate 8, a separating mechanism for separating sludge and an aeration device for generating oil-containing bubbles are arranged in the centrifugal cavity 7, the aeration device is positioned at the bottom of the centrifugal cavity 7, the bottom of the centrifugal cavity 7 is provided with a sludge outlet 9, a water outlet 10 is arranged in the water outlet cavity 6, the oil removing cavity 2, the centrifugal cavity 7 and the water outlet cavity 6 are communicated with each other, and one side of the centrifugal cavity 7 is communicated with a water inlet 18. The oil outlet 5 is communicated with a pump, and the pump pumps the oil in the oil removing cavity 2 to the outside.
And the second partition plate 3 is provided with filter holes. Centrifugal holes are formed in the first partition plate 8, and the size of each centrifugal hole is smaller than that of the sludge.
Separating mechanism includes motor 12, safety cover 11, arbor 13 and sets up spiral blade 14 on the arbor 13, motor 12 passes through safety cover 11 is fixed to be set up on the second baffle 3, motor 12's motor shaft with arbor 13 transmission is connected. The aeration device comprises an aeration disc 15, an air inlet pipe 16 and an aeration pump 17 which are fixedly arranged in the centrifugal cavity 7, the air inlet pipe 16 penetrates through the water outlet cavity 6 and the centrifugal cavity 7 to be communicated with the aeration disc 15, and the air inlet pipe 16 is connected with the aeration pump 17. The bottoms of the centrifugal cavity 7 and the water outlet cavity 6 are both conical, and the water outlet 10 and the sludge outlet 9 are both arranged at the lowest part of the conical shape.
The working principle is as follows: injecting sewage to be treated from a water injection port until the liquid level of the sewage contacts an oil outlet 5, starting a motor 12 and an aeration pump 17, generating micro bubbles by an aeration disc 15, fully contacting the sewage containing oil, floating upwards, passing through a filter hole on a second partition plate 3 to reach an oil removing cavity 2, pumping the floating oil to the outside by starting the pump, driving a cutter shaft 13 to rotate ceaselessly by the motor 12, driving a fluid to rotate by a spiral blade 14, crushing large particles in the sewage, generating vortex to generate centrifugal force at the same time, centrifugally shaking water and mud at the same time, separating the mud into a mud outlet 9 due to the larger particle size by a centrifugal hole, discharging the water into a water outlet cavity 6 due to the centrifugal force, and discharging the water and the mud from a water outlet 10, and finally realizing the separation of the oil, the water and the mud in the oil-containing sewage.
Claims (6)
1. The utility model provides an oily silt sewage separation device which characterized in that: comprises a water collecting tank (1), the water collecting tank (1) comprises an oil removing cavity (2) and a separation cavity, the oil removing cavity (2) is separated from the separation cavity through a second partition plate (3), an oil outlet (5) and an air outlet hole (4) are arranged in the oil removing cavity (2), the oil outlet (5) is positioned at one side of the oil removing cavity (2), the separation cavity comprises a centrifugal cavity (7) and a water outlet cavity (6) which is sleeved at the outer side of the centrifugal cavity (7), the centrifugal cavity (7) is separated from the water outlet cavity (6) through a first partition plate (8), a separation mechanism for separating sludge and an aeration device for generating oil-containing bubbles are arranged in the centrifugal cavity (7), the aeration device is positioned at the bottom of the centrifugal cavity (7), a sludge outlet (9) is arranged at the bottom of the centrifugal cavity (7), a water outlet (10) is arranged in the water outlet cavity (6), the de-oil cavity (2), the centrifugal cavity (7) and the water outlet cavity (6) are communicated with each other, and one side of the centrifugal cavity (7) is communicated with the water inlet (18).
2. The oil-containing sludge sewage separating apparatus of claim 1, wherein: and the second partition plate (3) is provided with filter holes.
3. The oil-containing sludge sewage separating apparatus of claim 1, wherein: centrifugal holes are formed in the first partition plate (8), and the size of each centrifugal hole is smaller than that of the sludge.
4. The oil-containing sludge sewage separating apparatus of claim 1, wherein: separating mechanism includes motor (12), safety cover (11), arbor (13) and sets up spiral blade (14) on arbor (13), motor (12) pass through safety cover (11) are fixed to be set up on second baffle (3), the motor shaft of motor (12) with arbor (13) transmission is connected.
5. The oil-containing sludge sewage separating apparatus of claim 1, wherein: the aeration device comprises an aeration disc (15), an air inlet pipe (16) and an aeration pump (17), wherein the aeration disc (15), the air inlet pipe (16) and the aeration pump (17) are fixedly arranged in the centrifugal cavity (7), the air inlet pipe (16) penetrates through the water outlet cavity (6) and the centrifugal cavity (7) to be communicated with the aeration disc (15), and the air inlet pipe (16) is connected with the aeration pump (17).
6. The oil-containing sludge sewage separating apparatus of claim 1, wherein: the bottoms of the centrifugal cavity (7) and the water outlet cavity (6) are both conical, and the water outlet (10) and the sludge outlet (9) are both arranged at the lowest part of the conical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010119222.0A CN111410257A (en) | 2020-02-26 | 2020-02-26 | Oil-containing sludge and sewage separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010119222.0A CN111410257A (en) | 2020-02-26 | 2020-02-26 | Oil-containing sludge and sewage separation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111410257A true CN111410257A (en) | 2020-07-14 |
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ID=71487498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010119222.0A Pending CN111410257A (en) | 2020-02-26 | 2020-02-26 | Oil-containing sludge and sewage separation device |
Country Status (1)
| Country | Link |
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| CN (1) | CN111410257A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114590869A (en) * | 2022-05-11 | 2022-06-07 | 山东柏源技术有限公司 | Oil-containing sewage's centrifugal separation processing apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004030910A1 (en) * | 2004-06-25 | 2006-01-19 | Mahle Filtersysteme Gmbh | Oil separator for crankcase breather system for IC engine has a stack of rotating discs to separate out solids and liquids and with the upper disc with vanes to create a backflow airstream to prevent oil creep |
| CN102198984A (en) * | 2010-03-26 | 2011-09-28 | 北京石油化工学院 | Multiphase separation method and system for processing oily waste water |
| CN207091202U (en) * | 2017-07-31 | 2018-03-13 | 广州新灿环保科技有限公司 | A kind of high-efficiency sewage sedimentation basin with sterilization and anticorrosion function |
| CN209226730U (en) * | 2018-10-17 | 2019-08-09 | 广州市杰臻机电设备有限公司 | A kind of Treated sewage reusing sewage integrated treatment equipment |
-
2020
- 2020-02-26 CN CN202010119222.0A patent/CN111410257A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004030910A1 (en) * | 2004-06-25 | 2006-01-19 | Mahle Filtersysteme Gmbh | Oil separator for crankcase breather system for IC engine has a stack of rotating discs to separate out solids and liquids and with the upper disc with vanes to create a backflow airstream to prevent oil creep |
| CN102198984A (en) * | 2010-03-26 | 2011-09-28 | 北京石油化工学院 | Multiphase separation method and system for processing oily waste water |
| CN207091202U (en) * | 2017-07-31 | 2018-03-13 | 广州新灿环保科技有限公司 | A kind of high-efficiency sewage sedimentation basin with sterilization and anticorrosion function |
| CN209226730U (en) * | 2018-10-17 | 2019-08-09 | 广州市杰臻机电设备有限公司 | A kind of Treated sewage reusing sewage integrated treatment equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114590869A (en) * | 2022-05-11 | 2022-06-07 | 山东柏源技术有限公司 | Oil-containing sewage's centrifugal separation processing apparatus |
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Application publication date: 20200714 |