CN2236483Y - Filler style floatation column - Google Patents
Filler style floatation column Download PDFInfo
- Publication number
- CN2236483Y CN2236483Y CN 95227641 CN95227641U CN2236483Y CN 2236483 Y CN2236483 Y CN 2236483Y CN 95227641 CN95227641 CN 95227641 CN 95227641 U CN95227641 U CN 95227641U CN 2236483 Y CN2236483 Y CN 2236483Y
- Authority
- CN
- China
- Prior art keywords
- packing
- flotation column
- sewage
- gas distributor
- utility
- 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.)
- Expired - Lifetime
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Abstract
The utility model is equipment for treating oily sewage, which is suitable for the treatment on the oily sewage generated by an oilfield and an oil refinery. The utility model comprises a flotation column body, an overflow trough with a floating slag outlet, a sewage inlet, a sewage distributor, a compressed air inlet, a gas distributor and a clear water outlet on the bottom of the gas distributor. The utility model is characterized in that the upper part and the lower part of the flotation column are respectively provided with a layer of cylinders formed by two sections of corrugated filler and a layer of cylinders formed by one section of porous filler; a second stage compressed air inlet and the gas distributor are arranged between two layers of filler. The utility model has stable operation, and the oil removing efficiency reaches as high as 95%; compared with the processing ability of the flotation column with the same dimension, the processing ability is enhanced by 1-2 times.
Description
The utility model relates to a kind of oil conte, sewage treatment device, and promptly the material filling type flotation column is applicable to the processing of the oily(waste)water that oil field, refinery produce.
In oil-field development, accumulating and refinery production process, can produce a large amount of oily(waste)waters, oleaginousness is from tens mg/l～several thousand mg/l, and these oily(waste)waters are not let alone to be discharged in the physical environment as if not handling, and must cause oil pollution to natural water, soil.To this, develop the treatment technology and the equipment of various oily(waste)waters both at home and abroad in succession, as:
Oil removal: utilize the difference of profit proportion, oil droplet is floated naturally to the water surface oil is removed, this method technology is simple, and energy consumption is low, can only remove the bigger oil droplet of oil droplet size;
Flotation: the come-up of ducking in drink by gas will stick to oil droplet on the bubble and bring to the water surface and remove, and can remove small particle size oil droplet and part oil in water emulsion;
Biochemical process: the utilization oil in water emulsion that dissolving oil in the microbiological deterioration water of mineral oil and flotation can't be removed of can degrading.
Flotation technology is present general oily water treatment technology, mainly contains loose air supporting choosing, dissolved air floatation, bleed flotation etc., and common equipment is the flotation cell of structures formula, and its shortcoming is that investment is high, and floor space is big, and use is restricted.
The purpose of this utility model is to provide a kind of processing efficiency height, less investment, the material filling type flotation column that floor space is little.
The utility model purpose is achieved in that
The utility model is the overflow groove in the outlet of band scum silica frost, sewage inlet and sewage sparger, the sewage sparger is the cylindrical trough that many uniform apertures are arranged at the bottom, increased on the flotation column that the clear water output of the compressed air inlet of bottom and gas distributor and bottom is formed: protruded packing, be that multi-disc has the disk screen cloth of rhombus aperture by on arbitrarily angled, the overlapping right cylinder that is arranged in is positioned in the flotation column body down, corrugated plate packing is the two pitch circle cylinders that the inclination waved plate vertically is arranged in, the ripple vergence direction of wherein adjacent two plates is identical, the height of multi-disc plate is identical, its width is reduced to both sides by the centre, be fixed together after being arranged in right cylinder, form a joint, on, the waved plate of two joints is 90 ° of intersection placements down, two joint corrugated plate packing right cylinders place above the protruded packing right cylinder, constitute one deck, two-layer waved plate and protruded packing with spline structure place upper part of body respectively, the bottom, the length of side of rhombus aperture is 2～5mm in the protruded packing, ripple plate material medium dip ripple is horizontal by 30 ° of angles, the wave crest height of ripple is 8～8.2mm, and corrugation pitch is 16mm; Between two-layer filler, compressed air inlet, the second stage and gas distributor are set, waved plate and porous screen cloth all adopt stainless material to make.
Fig. 1 is a structural representation of the present utility model, Fig. 2 be the sewage sparger partly cut open vertical view, Fig. 3 is A-A sectional drawing of Fig. 1, Fig. 4 is B-B sectional drawing of Fig. 1, Fig. 5 is the semisectional view of gas distributor.
In conjunction with the accompanying drawings structure of the present utility model and embodiment are described as follows:
The utility model is the overflow groove 1 in band scum silica frost outlet 11, sewage inlet 2 and sewage sparger 21, the compressed air inlet 5 of bottom and gas distributor 51, and increased on the flotation column of clear water output 7 compositions of bottom: protruded packing 4, be that multi-disc has the disk screen cloth of rhombus aperture by on arbitrarily angled, the overlapping right cylinder that is arranged in is positioned in the flotation column body 8 down, corrugated plate packing 3 is two pitch circle cylinders that the inclination waved plate vertically is arranged in, the ripple vergence direction of wherein adjacent two plates is identical, the height of multi-disc plate is identical, its width is reduced to both sides by the centre, be fixed together after being arranged in right cylinder, form a joint, on, the waved plate of two joints is 90 ° of intersection placements down, two joint corrugated plate packing right cylinders place above the protruded packing right cylinder, constitute one deck, two-layer waved plate 3 and protruded packing 4 with spline structure, place the upper and lower of body 8 respectively, the length of side of rhombus aperture is 2～5mm in the protruded packing 4, corrugated plate packing 3 medium dip ripples are horizontal by 30 ° of angles, the wave crest height of ripple is 8～8.2mm, and corrugation pitch is 16mm; Between two-layer filler, compressed air inlet, the second stage 6 and gas distributor 61 are set, waved plate and porous screen cloth all adopt stainless material to make, and gas distributor is made with sintered glass, and market is available.
One. principle of work of the present utility model:
Flotation is a kind of important means in the sewage disposal.Flotation is the unit operation that is used for from liquid phase separate solid or liquid particles.It is finished by cause small bubbles (normally air filled cavity) in liquid phase.Bubble contacts the bubble that generated of back with particulate matter and the buoyancy of particulate combination makes particle be raised to fluid surface, has so just realized separating of particle and liquid in the liquid.
Improving the flotation column oil removal efficiency will take in from several aspects, the one, reduce bubble size, bubble size reduces, the specific surface area of bubble increases, the chance that bubble carries oil droplet increases, and bubble diminishes, and the compressed gas of same volume just can form the bubble of greater amt, number of bubbles increases, and the chance that bubble and oil droplet come in contact also will increase.The 2nd, make the interior liquid-flow of flotation column more approach piston flow, can reduce liquid back mixing in the post like this.The 3rd, increase the chance that " fresh " bubble contacts with oil droplet.Here said " fresh " bubble is meant still unconjugated oil droplet or in conjunction with the less bubble of oil droplet." fresh " bubble can more easily combine with oil droplet.Two kinds of fillers---corrugated plate packing and protruded packing have been installed in the post body, have been increased one-level compressed air inlet and gas distributor at post body middle part simultaneously.The effect of protruded packing is exactly to make gas dispersion as far as possible, thereby forms more littler bubbles.Corrugated plate packing is owing to be vertical installation, many zigzag vertical channels in flotation column, have just been formed like this, like this with regard to a certain passage, sectional area reduces greatly, flotation column is equivalent to be formed side by side by many very thin pipes at this moment, aspect ratio increases greatly, and the increase of aspect ratio makes the flow state of the interior liquid of post more approach plug flow, thereby has suppressed back mixing in the post significantly.Explanation makes in the very high liquid of post epimere oil-contg at one-level compressed air inlet and gas distributor that the cylinder middle part increases, and " fresh " bubbles volume increases, thereby has improved the epimere oil removal efficiency, has alleviated the burden of hypomere oil removing.In a word, by increasing filler, increase compressed air inlet, middle part and gas distributor, make the moving state of the interior liquid air-flow of flotation column more steady, bubble is more tiny and even, thereby makes flotation column have better operational stability, higher oil removal efficiency and bigger processing power.
Two. working process of the present utility model:
See Fig. 1, sewage is sent into flotation column with sewage from sewage inlet with pump, through the sewage sparger sewage is dispensed on the cross section of flotation column equably, and sewage integral body flows downward.Pressurized air enters flotation column from the compressed gas inlet, making pressurized air be dispersed into micro-bubble through gas distributor rises through protruded packing and corrugated plate packing, steep in the uphill process with oil droplet in the sewage that flows downward and contact, and combination, bubble is carrying oil droplet to be continued to rise, form scum silica frost to capital, concentrate from the scum silica frost outlet at overflow groove to be discharged to outside the flotation column.The sewage that integral body flows downward is passing through corrugated plate packing 3 successively, and------gas distributor 61 is---behind corrugated plate packing 3---protruded packing 4---gas distributor 51 for protruded packing 4, oil droplet in the water is carried away by bubble substantially, become clear water this moment, discharged flotation column from clear water output.
Filler style floatation column has following advantage:
1. stable operation, oil removal rate good reproducibility, precision height.
2. efficient height: the oil removal efficiency of filler style floatation column can be stabilized in 95% (oil in the water Drip particle diameter＜100 μ m), the oil removal efficiency of prototype flotation column then is up to 90%.
3. processing power improves: the processing power of the material filling type flotation column of same size is 2-3 times of prototype flotation column processing power.
Claims (3)
1. material filling type flotation column, the overflow groove (1) that comprises flotation column top band scum silica frost outlet (11), the sewage inlet (2) and the sewage sparger (21) of body (8) top one side, the clear water output (7) of compressed air inlet of body bottom (5) and gas distributor (51) and body bottom one side, it is characterized in that, protruded packing (4) is that multi-disc has the disk screen cloth of rhombus aperture by on arbitrarily angled, the overlapping right cylinder that is arranged in is positioned in the flotation column body (8) down, corrugated plate packing (3) is the two pitch circle cylinders that the inclination waved plate vertically is arranged in, the ripple vergence direction of wherein adjacent two plates is identical, the height of every plate is identical, its width is reduced to both sides by the centre, be fixed together after being arranged in right cylinder, form a joint, on, the waved plate of two joints is 90 ° of intersection placements down, two joint corrugated plate packing right cylinders place above the protruded packing right cylinder, constitute one deck, the upper and lower that places body (8) respectively with the two-layer corrugated plate packing (3) and the protruded packing (4) of spline structure; Between two-layer filler, compressed air inlet, the second stage (6) and gas distributor (61) are set.
2. by the described flotation column of claim 1, it is characterized in that the length of side of rhombus aperture is 2～5mm in the protruded packing (4).
3. by claim 1 or 2 described flotation columns, it is characterized in that corrugated plate packing (3) medium dip ripple is horizontal by 30 ° of angles; The wave crest height of ripple is 8～8.2mm, and corrugation pitch is 16mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95227641 CN2236483Y (en) | 1995-12-28 | 1995-12-28 | Filler style floatation column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95227641 CN2236483Y (en) | 1995-12-28 | 1995-12-28 | Filler style floatation column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2236483Y true CN2236483Y (en) | 1996-10-02 |
Family
ID=33873425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95227641 Expired - Lifetime CN2236483Y (en) | 1995-12-28 | 1995-12-28 | Filler style floatation column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2236483Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101955271A (en) * | 2010-09-25 | 2011-01-26 | 中国石油大学(北京) | Multistage tower-type flotation device for treating oily sewage |
| CN101880072B (en) * | 2009-05-04 | 2013-11-06 | 上海巴安水务股份有限公司 | Flocculent settling degreaser |
| CN104289323A (en) * | 2014-10-09 | 2015-01-21 | 中国矿业大学 | Fluorite ore sorting device and method |
| CN105834011A (en) * | 2016-06-03 | 2016-08-10 | 武汉工程大学 | Floatation column intensified separation device with filler structure and separation method |
| CN106430392A (en) * | 2016-12-21 | 2017-02-22 | 铁道第三勘察设计院集团有限公司 | Cylindrical rotating air flotation tower for treatment of oil-containing sewage |
-
1995
- 1995-12-28 CN CN 95227641 patent/CN2236483Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880072B (en) * | 2009-05-04 | 2013-11-06 | 上海巴安水务股份有限公司 | Flocculent settling degreaser |
| CN101955271A (en) * | 2010-09-25 | 2011-01-26 | 中国石油大学(北京) | Multistage tower-type flotation device for treating oily sewage |
| CN101955271B (en) * | 2010-09-25 | 2012-03-14 | 中国石油大学(北京) | Multistage tower-type flotation device for treating oily sewage |
| CN104289323A (en) * | 2014-10-09 | 2015-01-21 | 中国矿业大学 | Fluorite ore sorting device and method |
| CN105834011A (en) * | 2016-06-03 | 2016-08-10 | 武汉工程大学 | Floatation column intensified separation device with filler structure and separation method |
| CN105834011B (en) * | 2016-06-03 | 2018-06-08 | 武汉工程大学 | Flotation column intensified sorting device and method for separating with filling-material structure |
| CN106430392A (en) * | 2016-12-21 | 2017-02-22 | 铁道第三勘察设计院集团有限公司 | Cylindrical rotating air flotation tower for treatment of oil-containing sewage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: PETROLDUM UNIV. (BEIJING) TO: CHINA NATIONAL PETROLEUM CORP. |
|
| CP03 | Change of name, title or address |
Address after: 100724 Beijing Xicheng six shop kang Patentee after: China National Petroleum Corporation Address before: Beijing 902 mailbox Environment Center Patentee before: University of Petroleum (Beijing) |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |