CN102259950A - Oil-water separator - Google Patents

Oil-water separator Download PDF

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Publication number
CN102259950A
CN102259950A CN2011101952179A CN201110195217A CN102259950A CN 102259950 A CN102259950 A CN 102259950A CN 2011101952179 A CN2011101952179 A CN 2011101952179A CN 201110195217 A CN201110195217 A CN 201110195217A CN 102259950 A CN102259950 A CN 102259950A
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CN
China
Prior art keywords
oil
water
separate tank
level control
oil separator
Prior art date
Application number
CN2011101952179A
Other languages
Chinese (zh)
Inventor
陈希国
Original Assignee
济南鲁发环保科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 济南鲁发环保科技有限公司 filed Critical 济南鲁发环保科技有限公司
Priority to CN2011101952179A priority Critical patent/CN102259950A/en
Publication of CN102259950A publication Critical patent/CN102259950A/en

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Abstract

The invention discloses an oil-water separator employing a cavitation air floatation technology and a special filter material. The main body of the device comprises a separation pool, wherein a water inflow pipe for injecting oil-containing sewage is arranged at the head end of the separate pool; an impurity separation frame is arranged near a water inflow pipe mouth in the separation pool and is used for separating and filtering large particle impurities in the oil-containing sewage; a cavitation air floatation aerator is located in the separation pool and is used for leading oil droplets to quickly float upward to the liquid surface by adhering a large number of tiny bubbles generated in the oil-containing sewage to the periphery of the oil droplet particles; an inclined plate deoiling device for shortening the rising distance of the floating oil is also arranged in the separation pool; an oil collecting tank for holding the rising floating oil is located in the separation pool; a water discharge pipe with a filter core is arranged at the terminal of the separation pool; and the water discharge pipe is connected with a liquid level control device, and the a liquid level control device comprises a control valve for controlling the water outflow amount and height of the water discharge pipe.

Description

Water-and-oil separator
Technical field:
The present invention relates to a kind of oily-water seperating equipment, particularly a kind of water-and-oil separator of using cavitation air flotation technology and special filtrate.
Background technology:
As everyone knows, existing water-and-oil separator just adopts installs several dividing plates in square or round pond, play grease and the isolated effect of water.There is following shortcoming in these water-and-oil separators:
At first, the separation efficiency of existing water-and-oil separator is low, and the water outlet oil-contg is still higher, generally can only reach three grades of emission standards to be<100mg/L.Secondly, what existing installation adopted is with low content of technology, just adds several roads dividing plate simply, easily by imitated.In addition, the existing installation oil extraction is cumbersome, needs the labor cleaning.
Summary of the invention:
In view of above-mentioned technical problem, the invention provides a kind of water-and-oil separator of using cavitation air flotation technology and special filtrate.This device just can be realized functions such as air-breathing automatically, dissolving, release, absorption by installing a cavitation aerator additional, does not need equipment such as conventional dissolving, reflux pump, reliever.In addition, special filter core of this equipment band and automatic oil draining device can be realized automatic oil draining, save manpower, improve the efficient of oily water separation simultaneously.
Concrete technical scheme of the present invention is as follows:
Water-and-oil separator, this device main body comprises a separate tank, described separate tank head end is provided with the water inlet pipe that is used for injecting oily(waste)water; Near the described foreign material discrete blocks that in separate tank, is provided with the water inlet pipe mouth, this is stated the foreign material discrete blocks and is used for large granular impurity in the separating and filtering oily(waste)water; The described cavitation air flotation aerator that in separate tank, is mounted with, this is stated the cavitation air flotation aerator and is attached on by a large amount of micro bubbles that charge in oily(waste)water and oil droplet is floated to liquid level around the olesome rapidly; Also be provided with swash plate oil removal plant in the described separate tank into the distance that shortens the oil slick rising; Described separate tank inside is provided with the oil trap that is used for holding the rising oil slick; Described end at separate tank is provided with the water shoot of a band filter core; Described water shoot connects a fluid level control device, and this fluid level control device comprises a level control valve that is used for controlling water shoot aquifer yield and freeboard.
In the such scheme, oil trap one side is provided with oil outlet pipe in the described separate tank.
In the such scheme, described level control valve is placed on the water shoot.
In the such scheme, described device also is provided with a cover plate that can cover whole separate tank.
In the such scheme, describedly be provided with electric heating tube in the oil trap bottom.
In the such scheme, described separate tank the bottom be provided with a plurality of blow-down pipes.
The water-and-oil separator of the above technology of application of indication of the present invention, its beneficial effect is as follows:
1, the existing same category of device of comparing, present device has improved the efficient of oily water separation, can make the content<10mg/L of oil in the water outlet.
2, present device can realize automatic oil draining.By adjusting mouth of a river liquid level, can realize automatic oil draining, save manpower and running cost, improve the efficient of oily water separation simultaneously.
3, in order to reduce the volume of equipment, present device adopts special swash plate oil removal plant, and this swash plate can shorten the distance that oil slick rises, thereby reduces the residence time of water and oil.
4, in order to prevent that cold district oil content in winter viscosity from increasing, mobile poor, the oil extraction difficulty, the present invention's design is established electric heating tube in the oil trap bottom, so that oil extraction is smooth and easy.
5, the present invention is owing to adopt cavitation air flotation principle, shallow pond sedimentation theory and incorgruous flow point from principle and turbulent boundary layer principle, improved the release surface that the unit pond holds, the effect of oily water separation is improved widely, shortened retention time of sewage, reduce volume of equipment greatly, saved floor space and cost.
6, present device reliable operation, work-ing life is extremely long, need not add any reagent and medicine, non-secondary pollution.
7, the present device installation and maintenance are simple and convenient: just can use as long as connect water inlet pipe, rising pipe, need not special messenger's during-operation service, a regular oil extraction of need gets final product.
8, present device is applicable to all oil kinds, oil-feed concentration is unrestricted: can be widely used among the waste water treatment engineering that contains natural oil and petroleum products, tar and tar fraction, vegetable and animals oils and lanolin etc., be specially adapted to the processing of catering industry oily(waste)water.
Description of drawings:
Further specify the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 is the sectional structure chart of water-and-oil separator of the present invention.
Fig. 2 is the plan structure figure of water-and-oil separator of the present invention.
Embodiment:
For technique means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
As depicted in figs. 1 and 2, water-and-oil separator of the present invention, this device main body comprises a separate tank 1, is provided with the water inlet pipe 2 that is used for injecting oily(waste)water at the separate tank head end; Be provided with foreign material discrete blocks 3 near 2 mouthfuls of the water inlet pipes in separate tank, this is stated foreign material discrete blocks 3 and is used for large granular impurity in the separating and filtering oily(waste)water; Be mounted with cavitation air flotation aerator 4 in separate tank, this is stated cavitation air flotation aerator 4 and is attached on by a large amount of micro bubbles that produce in oily(waste)water and oil droplet is floated to liquid level around the olesome rapidly.
Also be provided with swash plate oil removal plant 5 in the separate tank 1 into the distance that shortens the oil slick rising; Be close in the not far separate tank of swash plate oil removal plant 5 and be provided with the oil trap 6 that is used for holding the rising oil slick, this oil trap one side is provided with oil outlet pipe 7, and the oil trap bottom is provided with electric heating tube 8.
Be provided with the water shoot 9 of a band filter core 10 at the end of separate tank 1, this water shoot 9 connects a fluid level control device 11, and this fluid level control device 11 comprises a level control valve 12 that is used for controlling the water shoot aquifer yield, and this level control valve 12 is placed on the water shoot 9.
It needs to be noted that water-and-oil separator of the present invention also is provided with a cover plate 13 that can cover whole separate tank 1.Simultaneously separate tank the bottom be provided with several blow-down pipes (14a, 14b, 14c, 14d).
Below be the concrete operational process of present device:
At first, make the water inlet pipe access arrangement of oily(waste)water, by the foreign material discrete blocks, oarse-grained impurity is separated then at this from separate tank.Then enter the cavitation air flotation stage, around a large amount of micro bubbles that produce under the effect of cavitation air flotation aerator are attached on olesome, make oil droplet under the lifting effect of microbubble, reduce its proportion, and float rapidly to liquid level, when treating that the liquid level oil slick reaches certain thickness, close or turn down the control valve of liquid automatic control device, liquid level is raise, add the effect of swash plate oil removal plant, sewage enters the swash plate disengaging zone from the cavitation air flotation district makes oil slick rapidly increase to liquid level.And the oil slick that floats on the liquid level can flow into oil trap automatically, and is recycled to oil storage barrel by oil outlet pipe.
In addition, in order further to strengthen the oil removal efficiency of water outlet, end at separate tank is placed the filter core that adopts special filtrate to be made into, this filtrate has the selection adsorptivity to oil, can an oil suction not absorb water, make remaining micro-oil droplet particle be adsorbed onto that water then drains into the equipment rising pipe by filter core on the filtering material.
Facts have proved, but the present invention the oil slick more than the particle diameter 60um can be removed more than 90%, the content of externally discharged waste water vegetable and animals oils is lower than " integrated wastewater discharge standard " primary standard (10mg/L) in (GB8978-1996).
Following table is the main technical details effect of present device:
Project Technical parameter Remarks
The water inlet oil concentration Unrestricted
The water outlet oil concentration Reach first discharge standard Petroleum-type 5mg/l, vegetable and animals oils 10mg/l
The clearance of oil >90% But for oil slick
Working temperature More than 0 ℃
Operating pressure Normal pressure
The proportion of separable oil <1
The particle diameter of separable minimum oil droplet 60um
The oil droplet ascent rate >0.2mm/s
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims (6)

1. water-and-oil separator, this device main body comprises a separate tank, it is characterized in that, described separate tank head end is provided with the water inlet pipe that is used for injecting oily(waste)water; Near the described foreign material discrete blocks that in separate tank, is provided with the water inlet pipe mouth, this is stated the foreign material discrete blocks and is used for large granular impurity in the separating and filtering oily(waste)water; The described cavitation air flotation aerator that in separate tank, is mounted with, this state the cavitation air flotation aerator by in oily(waste)water, charge into a large amount of micro bubbles be attached on and oil droplet floated to liquid level around the olesome rapidly; Also be provided with swash plate oil removal plant in the described separate tank into the distance that shortens the oil slick rising; Described separate tank inside is provided with the oil trap that is used for holding the rising oil slick; Described end at separate tank is provided with the water shoot of a band filter core; Described water shoot connects a fluid level control device, and this fluid level control device comprises a level control valve that is used for controlling water shoot aquifer yield and freeboard.
2. according to the water-and-oil separator of claim 1, it is characterized in that oil trap one side is provided with oil outlet pipe in the described separate tank.
3. according to the water-and-oil separator of claim 1, it is characterized in that described level control valve is placed on the water shoot.
4. according to the water-and-oil separator of claim 1, it is characterized in that described device also is provided with a cover plate that can cover whole separate tank.
5. according to the water-and-oil separator of claim 1, it is characterized in that, describedly be provided with electric heating tube in the oil trap bottom.
6. according to the water-and-oil separator of claim 1, it is characterized in that, described separate tank the bottom be provided with a plurality of blow-down pipes.
CN2011101952179A 2011-07-13 2011-07-13 Oil-water separator CN102259950A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011101952179A CN102259950A (en) 2011-07-13 2011-07-13 Oil-water separator

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Application Number Priority Date Filing Date Title
CN2011101952179A CN102259950A (en) 2011-07-13 2011-07-13 Oil-water separator

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102659211A (en) * 2012-05-15 2012-09-12 泰山医学院 Method and device for automatically removing floating oil and settled sand from oil-containing wastewater
CN102765780A (en) * 2012-08-15 2012-11-07 天津滨海新区塘沽红光化工设备有限公司 Inclined tube degreaser for processing oil field sewage containing polymer
CN103435207A (en) * 2013-08-19 2013-12-11 宋汶芸 Improved oil-water separator
CN103539216A (en) * 2012-07-16 2014-01-29 杨志江 Totally-closed air flotation type oil separator
CN103626325A (en) * 2012-08-22 2014-03-12 杨志江 Advanced treatment device for oil-containing waste water
CN104016503B (en) * 2014-06-25 2015-07-15 重庆大学 Oil-water separation method and oil-water separation device
CN105905971A (en) * 2016-06-25 2016-08-31 辽宁石油化工大学 High-efficiency oily wastewater air-floatation treatment device
CN108249654A (en) * 2018-01-26 2018-07-06 周粉粉 A kind of intelligentized petrochemical wastewater processing equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2502766Y (en) * 2001-09-29 2002-07-31 金仁汉 Pressure air-float inclined corrugated plate type oil water separating machine
CN201525784U (en) * 2009-09-08 2010-07-14 肖利民 Air floatation type automatic oil-water separator for restaurant waste water
CN202265435U (en) * 2011-07-13 2012-06-06 济南鲁发环保科技有限公司 Oil-water separator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2502766Y (en) * 2001-09-29 2002-07-31 金仁汉 Pressure air-float inclined corrugated plate type oil water separating machine
CN201525784U (en) * 2009-09-08 2010-07-14 肖利民 Air floatation type automatic oil-water separator for restaurant waste water
CN202265435U (en) * 2011-07-13 2012-06-06 济南鲁发环保科技有限公司 Oil-water separator

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102659211A (en) * 2012-05-15 2012-09-12 泰山医学院 Method and device for automatically removing floating oil and settled sand from oil-containing wastewater
CN102659211B (en) * 2012-05-15 2014-03-05 泰山医学院 Method and device for automatically removing floating oil and settled sand from oil-containing wastewater
CN103539216A (en) * 2012-07-16 2014-01-29 杨志江 Totally-closed air flotation type oil separator
CN102765780A (en) * 2012-08-15 2012-11-07 天津滨海新区塘沽红光化工设备有限公司 Inclined tube degreaser for processing oil field sewage containing polymer
CN102765780B (en) * 2012-08-15 2014-02-05 天津滨海新区塘沽红光化工设备有限公司 Inclined tube degreaser for processing oil field sewage containing polymer
CN103626325A (en) * 2012-08-22 2014-03-12 杨志江 Advanced treatment device for oil-containing waste water
CN103435207A (en) * 2013-08-19 2013-12-11 宋汶芸 Improved oil-water separator
CN104016503B (en) * 2014-06-25 2015-07-15 重庆大学 Oil-water separation method and oil-water separation device
CN105905971A (en) * 2016-06-25 2016-08-31 辽宁石油化工大学 High-efficiency oily wastewater air-floatation treatment device
CN108249654A (en) * 2018-01-26 2018-07-06 周粉粉 A kind of intelligentized petrochemical wastewater processing equipment

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Inventor after: Wang Jing

Inventor before: Chen Xiguo

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Application publication date: 20111130