CN107935212A - Automatic oil-water separation method and device - Google Patents
Automatic oil-water separation method and device Download PDFInfo
- Publication number
- CN107935212A CN107935212A CN201711070482.8A CN201711070482A CN107935212A CN 107935212 A CN107935212 A CN 107935212A CN 201711070482 A CN201711070482 A CN 201711070482A CN 107935212 A CN107935212 A CN 107935212A
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- China
- Prior art keywords
- oil
- moisture content
- water
- water mixture
- settling tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 238000000926 separation method Methods 0.000 title claims abstract description 20
- 235000019476 oil-water mixture Nutrition 0.000 claims abstract description 34
- 235000019198 oils Nutrition 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000004062 sedimentation Methods 0.000 claims abstract description 4
- 239000004519 grease Substances 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 10
- 238000004064 recycling Methods 0.000 claims description 5
- 238000005119 centrifugation Methods 0.000 claims description 4
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 3
- 238000013517 stratification Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 27
- 235000015112 vegetable and seed oil Nutrition 0.000 description 8
- 239000008158 vegetable oil Substances 0.000 description 8
- 239000000839 emulsion Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000010773 plant oil Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Cyclones (AREA)
Abstract
The invention relates to an oil-water automatic separation method and device. The separation method comprises the following steps: adding the oil-water mixture into natural sedimentation for layering, detecting the water content in real time and sending the water content to a controller, releasing the water layer at the lower part of the oil-water mixture after natural layering, stopping draining, controlling the oil-water mixture to carry out centrifugal separation on the oil-water mixture, and finally stopping the centrifugal separation and separating oil and water; the device includes: settling cask and swirler are equipped with the moisture content detector in the settling cask, and the settling cask sub-unit connection has the fluid-discharge tube, and the fluid-discharge tube passes through first solenoid valve and drain connection, and the fluid-discharge tube passes through the liquid suction pipe to be connected with swirler, is provided with water pump and second solenoid valve in the liquid suction pipe, and the overflow mouth on swirler upper portion passes through out oil pipe to be connected with the settling cask, and the underflow mouth of swirler lower part passes through outlet pipe and drain connection. The invention has the advantages of high separation degree of oil-water mixture, full automatic control, simple operation, labor saving and good economic performance.
Description
Technical field
The present invention relates to the oily water separation technique in a kind of chemical production field, is specifically a kind of grease automatic separation method
And device.
Background technology
In industrial production processing, oily waste water is often produced, if oily waste water directly discharges, to the danger of natural environment
Evil is very big, therefore water-oil separating is essential industrial flow, and is also required in some special industries to use grease point
From, such as oil industry.In order to which the water in oil water mixture is discharged, researcher detects from oil-water separation method, oil-water interfaces
Studied etc. many aspects.Wherein, this process of water-oil separating is the artificial judgment grease point by manually being operated mostly
Interface is also not accurate enough, and oil leak accident easily occurs, also larger to manpower demand amount, while asks there is also separation degree is relatively low
Topic, using general equipment, the effect of water-oil separating is also relatively more general.
The content of the invention
For above-mentioned problem, it is an object of the invention to provide a kind of natural sedimentation and centrifuge and
Grease automatic separation method and device, can save manpower, and operate it is relatively simple, it is necessary to equipment it is also relatively simple, grease
Good separating effect.
A kind of oil-water separation method, it comprises the following steps：
(1) moisture content 1, moisture content 2 and moisture content 3 are preset on the controller, and it is heavy that pending oil water mixture is added
Stratification in settling tank is dropped, and the moisture content of oil water mixture is detected in real time, and beams back controller, oil water mixture
Layering finishes, if detection moisture content is more than the moisture content 1, opens settling tank lower part release oil water mixture lower floor, until
Detection moisture content is equal to the moisture content 2, stops release；
(2) start oil water mixture lower floor liquid being evacuated in centrifugation apparatus to carry out centrifugal treating, until described in detection
Oil mixing with water water content of matter is equal to the moisture content 3 in settling tank, stops extracting, and the grease after centrifugal treating is mixed
The water layer release of compound lower part, the oil on top are then drawn back in settling tank, unified recycling.
Preferably, moisture content 1 is more than the moisture content 2, and moisture content 2 is more than moisture content 3.
It is a kind of to be used for realization a kind of oily-water seperating equipment of grease automated process, including settling tank, controller and centrifugation dress
Put, the settling tank lower part is provided with drain pipe, and a moisture content monitor, the moisture content detection are provided with the settling tank
Instrument is electrically connected with the controller, and the drain pipe is connected with a drainpipe, is set between the drain pipe and the drainpipe
There is the first solenoid valve, the drain pipe is connected by a liquid suction pipe with the cyclone, and the second electricity is provided with the liquid suction pipe
Magnet valve and water pump, the centrifugal device top is provided with overflow port and bottom sets underflow opening.
Preferably, the centrifugal device is cyclone.
Preferably, the overflow port is connected with a flowline one end, and the underflow opening is connected with an outlet pipe one end.
Preferably, the outlet pipe other end is connected with the outlet tube.
Preferably, the flowline other end leads to the settling tank.
Preferably, the moisture content detector is arranged at 1/3 to 1/2 place of the settling tank height.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) moisture content when pre-set each step carries out, carries out water-oil separating, easy to operate, the pole of equipment automatically
The earth reduces required manpower.
(2) the advantages of combining conventional method, more efficiently can carry out oil water mixture water-oil separating, repeatedly divide
From the moisture content for more reducing product.
(3) equipment is relatively simple for structure, and security performance is high, is less prone to accident.
Brief description of the drawings
Attached drawing described herein is used for providing further understanding of the present application, forms the part of the application, this Shen
Schematic description and description please is used to explain the application, does not form the improper restriction to the application.In the accompanying drawings：
Fig. 1 is a kind of grease automatic separation method flow chart of the present invention；
Fig. 2 is a kind of structure diagram of oil-water automatic separating device of the present invention.
In figure, 1, flowline, 2, settling tank, 3, moisture content detector, 4, drain pipe, 5, second solenoid valve, 6, liquid suction pipe,
7th, the first solenoid valve, 8, drainpipe, 9, outlet pipe, 10, underflow opening, 11, cyclone, 12, overflow port, 13, water pump, 14, PLC controls
Cabinet processed.
Specific embodiment
The principles and features of the present invention are described below, and the given examples are served only to explain the present invention, is not intended to limit
Determine the scope of the present invention.
As shown in Figure 1, the present invention provides a kind of oil-water separation method, comprise the following steps：
(1) moisture content 1, moisture content 2 and moisture content 3 are preset on the controller, and it is heavy that pending oil water mixture is added
Stood in drop settling tank, and the moisture content of oil water mixture is detected in real time and beams back controller, oil water mixture layering
Finish, if detection moisture content is less than moisture content 1, wait the new oil water mixture that adds oil water surface is increased；If detection contains
Water rate is more than the moisture content 1, then discharges oil water mixture lower floor, until detection moisture content is equal to the moisture content 2, stops releasing
Portion's water is put down, which is more than the moisture content 2, which is more than the moisture content 3.
(2) after step 1, start oil water mixture lower floor liquid being evacuated in centrifugation apparatus to carry out centrifugal treating,
Until detecting oil mixing with water water content of matter in the settling tank is equal to the moisture content 3, stop extracting, and centrifugal treating is complete
The water layer release of oil water mixture lower part after finishing, the oil on top are then drawn back in settling tank, unified recycling.
The operation principle of the present invention is as follows：
Oil water mixture to be separated is added in settling tank first, is placed for a long time, waits oil water mixture natural
Layering, since the density of water is more than oil, most water is in the lower floor of mixture after standing for a long time, and most of
Oil be in upper strata, overall oil water mixture is followed successively by oil reservoir, emulsion layer and water layer from top to bottom, and to the oil in settling tank
Aqueous mixtures moisture content is detected in real time, for example uses moisture content detector, it is preferred that can set moisture content detector
In 1/3 to 1/2 place of the settling tank height, because the water content of settling tank lower part is higher, and top oil content is higher, therefore
Moisture content detector 3 is arranged at middle part position on the lower side can obtain a more accurately moisture content；Moisture content detector 3
It is electrically connected with the controller of equipment, controller can be PLC control cabinet (PLC technology cabinet), or other functions are similar
Controller, signal is sent back to, it is necessary to when being settled by controller by moisture content detector, sets contain on the controller
Water rate 1, moisture content 2, moisture content 3, and moisture content 1 are more than moisture content 3, the number that moisture content detector is beamed back more than moisture content 2
It is compared according to setting value, if moisture content is higher than moisture content 1, which is provided with valve, can control opening and closing, control
Device control settlement tank lower part is opened, and is discharged due to gravity and is layered the water in lower part, while moisture content detector continues pair
Oil water mixture in settling tank carries out moisture content detection, until moisture content is close to moisture content 2, controller control settlement tank lower part
Close, stop release, and by remaining oil water mixture in settling tank by water pump be pumped into can in the equipment of centrifugal treating, such as
Cyclone, centrifugal treating is carried out to oil water mixture, until the moisture content of oil water mixture is equal to moisture content 3 inside settling tank,
Stop extracting oil water mixture；Since water density is more than oil, after centrifugal treating, top is recycled on the top that oil swims on water
Oil, discharge the water of lower part, that is, complete water-oil separating processing, the fluid on top can be drawn back in settling tank again, to unite
One recycling.
As shown in Fig. 2, a kind of embodiment of a kind of oil-water separation method of the present invention and device, to vegetable oil mixt into
Row water-oil separating.Moisture content 1 is pre-set on the touch-screen of PLC control cabinet 14, moisture content 2, moisture content 3, is respectively
80%, 60%, 50%, by vegetable oil add settling tank 2 in, carry out settlement treatment, stand to vegetable oil and be substantially layered, from up to
Under be followed successively by oil reservoir, emulsion layer and water layer, at this time by the moisture content detector 3 inside settling tank 2 to the oil in settling tank 2
Aqueous mixtures are detected in real time, and the moisture content for finding to detect is more than 80%, and PLC control cabinet 14 is received from moisture content
The signal of detector 3, opens the first solenoid valve 7, due to the layering of vegetable oil, the water layer in bottom is first begin to from drain pipe
4 outflows, by the first solenoid valve 7, are discharged from the outlet of drainpipe 8；When the vegetable oil moisture content that moisture content detector 3 detects
During close to 60%, continue signal beaming back PLC control cabinet 14, PLC control cabinet 14 closes the first solenoid valve 7, while starts second
Solenoid valve 5, water pump 13 and cyclone 11, water pump 13 are started to work, by liquid suction pipe 6 by the trials of emulsion of plant oil of oil water mixture lower part
Change layer to be pumped into cyclone 11, until moisture content detector 3 detects that vegetable oil moisture content just stops extracting plant close to 50%
Oily emulsion layer, vegetable oil emulsion layer are pulled into cyclone 11 by high-speed motion, due to the centrifugal movement of progress, extraction
Vegetable oil emulsion layer is layered, and lower floor is water layer, and upper strata is oil reservoir, and the oil reservoir on upper strata is drawn back by water pump 13 from flowline
Into settling tank 2, recycling uses or processing, and the water of lower floor flows into outlet pipe 9 by underflow opening 10, finally from 8 row of drainpipe
Go out.
A kind of the grease automatic separation method and device of the present invention can greatly improve the efficiency of water-oil separating, and this
That invents is easy to operate, and cost is relatively low, is adapted to industrialized use.
Some preferred embodiments of invention have shown and described in described above, but as previously described, it should be understood that present invention hair
It is bright to be not limited to form disclosed herein, the exclusion to other embodiment is not to be taken as, and available for various other groups
Conjunction, modification and environment, and above-mentioned teaching or the technology of association area can be passed through in invention invented the scope of the idea described herein
Or knowledge is modified.And changes and modifications made by those skilled in the art do not depart from the spirit and scope that the present invention invents, then
All should be in the protection domain of invention appended claims of the present invention.
Claims (8)
1. a kind of oil-water separation method, it comprises the following steps：
(1) moisture content 1, moisture content 2 and moisture content 3 are preset on the controller, and pending oil water mixture is added sedimentation holds
Stratification in device, and the moisture content of oil water mixture is detected in real time and beams back controller, treat that oil water mixture is layered
Finish, if detection moisture content is more than the moisture content 1, release oil water mixture lower floor, until detection moisture content is equal to described
Moisture content 2, stops release；
(2) start oil water mixture lower floor liquid being evacuated in centrifugation apparatus to carry out centrifugal treating, until detecting the sedimentation
Oil mixing with water water content of matter is equal to the moisture content 3 in tank, stops extracting, and by the oil water mixture after centrifugal treating
The water layer release of lower part, the oil on top are then drawn back in settling tank, unified recycling.
2. grease automatic separation method according to claim 1, it is characterised in that the moisture content 1 is more than the moisture content
2, the moisture content 2 is more than the moisture content 3.
A kind of 3. device of grease automatic separation method according to claim 1 or claim 2, it is characterised in that bag
Settling tank (2), controller and centrifugal device are included, settling tank (2) lower part is provided with drain pipe (4), it is characterised in that described
A moisture content monitor (3) is provided with settling tank (2), the moisture content detector (3) is electrically connected with the controller, described
Drain pipe (4) is connected with a drainpipe (8), and the first solenoid valve is provided between the drain pipe (4) and the drainpipe (8)
(7), the drain pipe (4) is connected by a liquid suction pipe (6) with the centrifugal device, and second is provided with the liquid suction pipe (6)
Solenoid valve (5) and water pump (13), the centrifugal device top is provided with overflow port (12) and bottom sets underflow opening (10).
4. oil-water automatic separating device according to claim 3, it is characterised in that the centrifugal device is cyclone
(11)。
5. a kind of oil-water automatic separating device according to claim 4, it is characterised in that the overflow port (12) goes out with one
Oil pipe (1) one end connects, and the underflow opening (10) is connected with an outlet pipe (9) one end.
A kind of 6. oil-water automatic separating device according to claim 5, it is characterised in that outlet pipe (9) other end
It is connected with the outlet tube (8).
A kind of 7. oil-water automatic separating device according to claim 5, it is characterised in that flowline (1) other end
Lead to the settling tank (2).
A kind of 8. oil-water automatic separating device according to claim 3, it is characterised in that the moisture content detector (3)
It is arranged at 1/3 to 1/2 place of the settling tank (2) height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711070482.8A CN107935212A (en) | 2017-11-03 | 2017-11-03 | Automatic oil-water separation method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711070482.8A CN107935212A (en) | 2017-11-03 | 2017-11-03 | Automatic oil-water separation method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107935212A true CN107935212A (en) | 2018-04-20 |
Family
ID=61933207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711070482.8A Pending CN107935212A (en) | 2017-11-03 | 2017-11-03 | Automatic oil-water separation method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107935212A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111204889A (en) * | 2020-01-13 | 2020-05-29 | 昆山辰芳环保科技有限公司 | Clean liquid circulation system for centralized recovery of cutting liquid |
| CN114534317A (en) * | 2022-02-22 | 2022-05-27 | 海南海嘉惠科技有限公司 | Laminar flow oil-water two-phase flow multi-frequency microwave detection real-time feedback segmentation method |
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|---|---|---|---|---|
| US3265212A (en) * | 1963-05-09 | 1966-08-09 | Pennsalt Chemicals Corp | Process for the purification of rolling mill oil |
| CN101475818A (en) * | 2009-01-23 | 2009-07-08 | 华东理工大学 | Coal tar coupled rotational flow purification method and apparatus |
| CN105174520A (en) * | 2015-09-30 | 2015-12-23 | 山东智博格瑞环保科技有限公司 | Oil removal treatment method for acidic water |
| CN106118721A (en) * | 2016-07-15 | 2016-11-16 | 西安石油大学 | A kind of high water-content crude oil settling tank automatic control system |
| CN106995718A (en) * | 2017-06-06 | 2017-08-01 | 中国石油大学(华东) | A kind of online processing unit of oil field settling tank tank bottom spoil disposal and processing method |
-
2017
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3265212A (en) * | 1963-05-09 | 1966-08-09 | Pennsalt Chemicals Corp | Process for the purification of rolling mill oil |
| CN101475818A (en) * | 2009-01-23 | 2009-07-08 | 华东理工大学 | Coal tar coupled rotational flow purification method and apparatus |
| CN105174520A (en) * | 2015-09-30 | 2015-12-23 | 山东智博格瑞环保科技有限公司 | Oil removal treatment method for acidic water |
| CN106118721A (en) * | 2016-07-15 | 2016-11-16 | 西安石油大学 | A kind of high water-content crude oil settling tank automatic control system |
| CN106995718A (en) * | 2017-06-06 | 2017-08-01 | 中国石油大学(华东) | A kind of online processing unit of oil field settling tank tank bottom spoil disposal and processing method |
Non-Patent Citations (1)
| Title |
|---|
| 赵作滋,任建科,刘贞祥,张卫东,刘连军: "原油脱水系统中溢流沉降灌内中间乳化层的形成与分离处理", 油田化学, no. 04, pages 340 - 341 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111204889A (en) * | 2020-01-13 | 2020-05-29 | 昆山辰芳环保科技有限公司 | Clean liquid circulation system for centralized recovery of cutting liquid |
| CN114534317A (en) * | 2022-02-22 | 2022-05-27 | 海南海嘉惠科技有限公司 | Laminar flow oil-water two-phase flow multi-frequency microwave detection real-time feedback segmentation method |
| CN114534317B (en) * | 2022-02-22 | 2023-06-16 | 海南海嘉惠科技有限公司 | Real-time feedback segmentation method for multi-frequency microwave detection of laminar oil-water two-phase flow |
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