CN103754986A - Oil stain mixture separating system - Google Patents
Oil stain mixture separating system Download PDFInfo
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- CN103754986A CN103754986A CN201410033548.6A CN201410033548A CN103754986A CN 103754986 A CN103754986 A CN 103754986A CN 201410033548 A CN201410033548 A CN 201410033548A CN 103754986 A CN103754986 A CN 103754986A
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Abstract
The invention provides an oil stain mixture separating system. A main body of the separating system is a separator main body (114) which is approximately cylindrical; major components comprise a spiral groove barrel (104), a spiral groove (108), a mixed liquid jet orifice (110), a drain pipe (113), a particle precipitating plate (111) and the separator main body (114); the spiral groove barrel (104) is arranged on the inner side of the separator main body (114); the spiral groove (108) is formed by being clung to the inner wall of the spiral groove barrel (104); the lower part of the separator main body (114) is provided with a mixed liquid inlet (109); the mixed liquid enhance flow rate at the mixed liquid inlet (109) is over 2 m/s. By using the oil stain mixture separating system, the oil-water separation proportion can be controlled. The oil stain mixture separating system has a wide application range.
Description
Technical field
The invention belongs to material physical sepn field, be specifically related to a kind of greasy dirt mixture separation system, it is applicable to the greasy dirt mixture separation system in petroleum chemical industry that treatment capacity is large.
Background technology
Along with the development of economic society, contaminated wastewater grows with each passing day, and environmental pollution is more and more subject to the people's attention, and oily(waste)water is common in numerous waste water, be easy to bring industry and the sanitary wastewater of environmental pollution, harm is serious, and its processing at home and abroad all attracts great attention.In the processes such as oil production, refining of petroleum, petrochemical complex, vehicle cleaning, machinofacture, food-processing, all can produce oily(waste)water at present.Once oil pollutant enters water body and diffuses to form oil film at the water surface at once, stop water body reoxygenation from atmosphere.Oils migration circle is wide, degradation speed is slow, finally affects human health.According to the source of oily(waste)water, the existence form in water is different with oils, can be divided into: oil slick, dispersed oil, oil in water emulsion and the large class of dissolving oil four.These oils complicated components, contain a large amount of mineral oil or vegetables oil, emulsifying agent and other organism, and emulsification degree is high, stable in properties, removal difficulty are large.Therefore, how efficiently to carry out oily water separation and be still a difficult problem to reach emission standard.
The method of at present conventional processing oily(waste)water has gravitational separation process, centrifugal separation, By Bubble-floating Method, ultrafiltration process, filtration method, absorption method etc.Each facture has the relative merits of oneself.Gravitational separation process and centrifugal separation oil slick and a small amount of larger dispersed oil of particle diameter in can only Separation of Water, does not originally have removal effect for the oil base of dispersion, emulsification, dissolving, therefore usually used as the pretreatment unit of oily(waste)water.By Bubble-floating Method is the action principle according to buoyancy, and the oil droplet of oil in water emulsion and dispersed oil is sticked on a large amount of microbubbles, and bubble is because the buoyancy of self is taken oil droplet out of the water surface, to realize solid-liquid separation process.In actual applications, because waste water quality is different, consider the factors such as treatment effect and capital construction, working cost, selected air-float technology is also different.More commonly vacuum dissolved air flotation and method of pressed dissolved-air release, the former is used seldom by various factors restriction at present, and the latter is the By Bubble-floating Method the most often adopting.General and the coagulation technology of By Bubble-floating Method combines, and can remove most of dispersed oil in water, and the oil of emulsification and dissolving is also had to certain clearance, is therefore the maximum oily wastewater treatment method of employing.But existing traditional By Bubble-floating Method is processed oily(waste)water and is had several large shortcomings: oil slick is difficult, and flotation time stops longer; At the bottom of mud is easily deposited on air flotation pool, reliever frequent jams; When treatment capacity is large, airfloat equipment floor space is large, and investment cost is high; Whole Equipment is imperfect, installs loaded down with trivial details; To take oil in water emulsion and dissolving oil as main oily(waste)water, traditional pneumatically supported removal effect is not good.
Ultrafiltration process was mainly used in condensed emulsified mineral oil in the last few years.Although ultra-filtration technique under certain condition can effective separated profit, the film pollution producing in concentration process can cause membrane flux seriously to be decayed, and transmembrane pressure significantly rises, and membrane lifetime shortens, membrane sepn decrease in efficiency, and energy consumption increases.Most of ultra-filtration membrane just enters the frequent cleaning phase after moving half a year, not only consumes a large amount of clean-out systems, and produces the secondary pollution problem of oil-containing scavenging solution.Seldom there is the work-ing life of ultra-filtration membrane can be over 2 years.Because the investment of film is conventionally larger, the initial investment of ultrafiltration oil removing system and running cost are all very high.In addition ultrafiltration is extremely low to the tolerance of oil slick, once in system because pre-treatment is not good at, the concentrated reason such as separate out produces oil slick, can bring irreversible destruction to ultra-filtration membrane.
Filter and absorption method is mainly to carry out oil micro-in planar water with special filtrate (nut-shell, oil suction plastics) etc.This method is only applicable to the very low situation of oleaginousness in waste water, otherwise can cause filtrate saturated very soon.Clean frequently and regeneration can cause the physical abuse of filtrate, and can lose efficacy gradually owing to being difficult to thorough backwash filtrate, need to often supplement, working cost is higher.And the removal effect of the method is not good when oil droplet emulsification.The disclosed egg Shape Plate Separator of Chinese patent CN201342267Y is achieved in that and comprises separation vessel and dividing plate, separation vessel top one side arranges water pump, separation vessel top arranges cover plate, cover plate is provided with water-in, container bottom sets out water pipe, water-stop sheet, oil separating plate and strongback that separation vessel bottom arranges are divided into oil, separate tank and pond successively by separation vessel, and oil sump top sets out oil pipe; Connected entrance is left in oil separating plate lower end and separate tank bottom; Separate tank bottom is provided with air supporting pipe, and air supporting pipe connects Airfloat pump.This tripping device is only applicable to the smaller oily(waste)water of the water yield, and treatment scheme is longer, and wastewater flow and operation can not well be controlled.
The oil field reinjection water embrane method of Chinese patent CN102225812A is processed, its basic procedure comprises: oily(waste)water enters slurry tank sedimentation, the suspended solids that remove portion is large and oil slick, water after sedimentation enters ceramic membrane ultrafitration equipment, at ceramic membrane device interior circulating filtration, see through the direct re-injection of penetrating fluid of film, the continuation settling circulation not seeing through filters.Although this technique is simple, filtering accuracy is high, moves after for some time, and wet goods dirt can stop up film pipe, causes membrane flux significantly to be decayed, and is difficult for reaching smoothly the result of oily water separation.
Widespread use based on cyclone separation process in oily(waste)water is processed, recently a lot of water treatment manufacturer all proposes the viewpoint that traditional air supporting and cyclone technique are combined, and has obtained some achievements in research.
In US Patent No. 7157007, set forth a kind of oil, gas, water three-phase separating device, this device is a vertical-type air-flotation separating tank, is mainly divided into upper, middle and lower-ranking, has utilized respectively cyclonic separation, coarse and air supporting isolation technique.The mid-way that is positioned at tank top is provided with an inner core, and oily(waste)water enters into inner core from tangential inlet and produces eddy flow, carries out oily water separation in inner core, and oil phase directly enters oil skimming bucket.When the current process flowing out from inner core bottom is positioned at the coalescent layer at tank middle part, the oil droplet of dispersion is at this agglomeration.Part macrobead oil droplet can be under buoyancy, overcome the lower upwards buoyance lift that starts to flowing of self gravitation and main body phase, from and removed a part of oil.In tank bottom, injector is installed, utilizes the gas of tank inner top and backflow to purify waste water and after shear-mixed, produce micro-bubble in injector, the oily(waste)water getting off from coalescent laminar flow is carried out to air supporting processing.But the periodic cleaning problem of coalescent layer bothers very much, the internal structure of whole plant is very complicated simultaneously, and the cost of processing and manufacturing is higher.
In US Patent No. 7144503, set forth a kind of combined degassing and flotation tank, had a cylindric inner core and a spiral entrance guide card in tank, oily(waste)water enters tank and forms eddy flow from the tangential inlet on tank top, and bubble is separated out from water simultaneously.Bubble and oil droplet are depressed into inner tube wall under the effect of eddy flow, and the two rises to tank deck after adhering to, and by the oil gas vent of tank deck, discharges.According to patentee's, this device is better to the treatment effect of oily(waste)water, and cost and maintenance cost are very low, the stricter field use of the space requirements such as oil tanker (FPSO) is unloaded in the oil production platforms or the Floating Production storage that are relatively applicable to offshore operation.But from the appended structure iron of this patent, rise to the oil of tank inner top and the outer row of bubble scum silica frost exists some problems.Especially the oil production platforms of offshore operation or FPSO can be because the effect of ripple, wave, stream be in vibrating state, now the liquid level of tank inside is difficult to keep stable, thereby cause the water content in the outer oil extraction of this device and bubble scum silica frost too high, thereby had a strong impact on separating effect.
From above-mentioned, current existing treatment technology is difficult to oily(waste)water to obtain good treatment effect, and particularly, when the component of oily(waste)water becomes increasingly complex, intractability is increasing.
Summary of the invention
In order to address the above problem, the inventor is for for above-mentioned the deficiencies in the prior art, through design and researchp repeatedly, proposed a kind of greasy dirt mixture separation system.
According to technical scheme of the present invention, a kind of greasy dirt mixture separation system body providing is the separator main body 114 of cylindrical tube shape roughly, and major parts comprises spiral slot cylindrical shell 104, spiral slot 108, mixed solution entry portal 110, water shoot 113, particulate matter settlement plate 111 and separator main body 114; In separator main body 114 inner sides, be provided with spiral slot cylindrical shell 104, be close to spiral slot cylindrical shell 104 inwalls spiral slot 108 is installed; In separator main body 114 bottoms, be provided with entry to mixed solution 109, the mixed solution of entry to mixed solution 109 enters flow velocity more than 2m/s.
Preferably, spiral slot cylindrical shell 104 is for cyclonic separation, the oil-water mixture entering from entry to mixed solution 109 jets flows in groove along spiral slot 108, and the heavier material of proportion is adjacent to cell wall to upper reaches, and the lighter material of proportion gradually eddy flow is waited a moment to spiral slot cylindrical shell 104 mid-ways and floated slowly.
More preferably, spiral slot 108 is fixed on spiral slot cylindrical shell 104 for entity structure, and the installation pitch H of spiral slot 108 is 75mm, groove depth 60mm;
Preferably, the proportionlity of groove depth, pitch and entry to mixed solution diameter 1: 1: 1.25, i.e. groove depth: pitch: inlet diameter (entry to mixed solution 109 diameters)=1: 1: 1.25.
Preferably, greasy dirt mixture separation system also comprises water port 101, draining regulated valve 102, separator fluid accumulation area 103, oil extraction regulated valve 105, water port 101, its for the treatment of after water from this water port 101, discharge; Draining regulated valve 102, it coordinates water inlet to regulate and uses for adjusting water outlet height and Water discharge flow speed; Separator fluid accumulation area 103, the fluid that rotating separation goes out floats to region clustering herein and treats outer row; Oil extraction regulated valve 105, it when oil mass is lower, closes oil extraction regulated valve 105 for by regulating fuel-displaced flow to control fuel-displaced water ratio, when oil mass is higher, then opens oil extraction regulated valve 105.
Further, greasy dirt mixture separation system also comprises oil discharge outlet 106, and moisture lower fluid is discharged from here; 107 (gaps), most of isolated Shui Cong flowing water district flow to below separator main body.Water below flowing water district 107 (gap) flows to separator main body is discharged from water port 101 by water shoot 113.
Further, the mouth of pipe of mixed solution entry portal 110 is tangential with spiral slot 108 and contacts.
Use greasy dirt mixture separation system of the present invention can control the ratio of oily water separation, control well the water content in separating oil, there is unrivaled oil-water separation in prior art.And go for the separation that contains the materials such as greasy dirt, sandstone, have wide range of applications.
Accompanying drawing explanation
Accompanying drawing 1 is the schematic diagram according to greasy dirt mixture separation system of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.Additionally, protection scope of the present invention only should be limited to following concrete structure or parts or design parameter.
Greasy dirt mixture separation system of the present invention, is applicable to come from the mixture separation that is mixed with water, landing oil and ground silt particle, and described mixture is referred to as oil-water mixture.
Greasy dirt mixture separation system as shown in Figure 1, its main body is the separator main body 114 of roughly cylindrical tube shape, and major parts comprises spiral slot cylindrical shell 104, spiral slot 108, mixed solution entry portal 110, water shoot 113, particulate matter settlement plate 111 and separator main body 114.In separator main body 114 inner sides, be provided with spiral slot cylindrical shell 104, depend on spiral slot cylindrical shell 104 inwalls spiral slot 108 is installed; In separator main body 114 bottoms, be provided with entry to mixed solution 109, mixed solution herein enters flow velocity more than 2m/s, to guarantee the cyclonic separation effect of current in spiral slot 108 (temperature of mixed solution remain on normal temperature more than, further preferably more than 20 degrees Celsius).
In addition, spiral slot cylindrical shell 104 is for cyclonic separation, the oil-water mixture entering from entry to mixed solution 109 jets flows in groove along spiral slot 108, and the heavier material of proportion is adjacent to cell wall to upper reaches, and the lighter material of proportion gradually eddy flow is waited a moment to spiral slot cylindrical shell 104 mid-ways and floated slowly.Spiral slot 108 is fixed on spiral slot cylindrical shell 104 for entity structure, and the installation pitch H of spiral slot 108 is 75mm, groove depth 60mm; In a preferred embodiment, the proportionlity of groove depth, pitch and entry to mixed solution diameter 1: 1: 1.25, i.e. groove depth: pitch: inlet diameter (entry to mixed solution 109 diameters)=1: 1: 1.25, now eddy flow effect is best.
Greasy dirt mixture separation system as shown in Figure 1 also comprises with lower member: water port 101, its for the treatment of after water from this water port 101, discharge; Draining regulated valve 102, it coordinates water inlet to regulate and uses for adjusting water outlet height and Water discharge flow speed; Separator fluid accumulation area 103, the fluid that rotating separation goes out floats to region clustering herein and treats outer row; Oil extraction regulated valve 105, it when oil mass is lower, closes oil extraction regulated valve 105 for by regulating fuel-displaced flow to control fuel-displaced water ratio, when oil mass is higher, then opens oil extraction regulated valve 105; Oil discharge outlet 106, moisture lower fluid is discharged from here; 107 (gaps), most of isolated Shui Cong flowing water district flow to below separator main body.Water below flowing water district 107 (gap) flows to separator main body is discharged from water port 101 by water shoot 113.
Preferably, the mouth of pipe of mixed solution entry portal 110 is tangential with spiral slot 108 and contacts, and for the follow-up liquid entering lays the first stone, making is all that jet is cut and can normally in spiral slot, be rotated.If have bulk matter such as sand or stone of particulate matter can be deposited on plate in the mixed solution that particulate matter settlement plate 111 jets enter, the regular vent valves of opening particulate matter relief outlet 112 is discharged.(particulate matter relief outlet 112 is for being deposited to the from then on mouthful discharge of particulate matter on particulate matter settlement plate.Regular discharge or each use are finished rear discharge).
Separator main body 114 adopts the tank body that wall thickness is 5mm, 304 (the stainless steel models) that main material is high-quality in the present invention.
Use greasy dirt mixture separation system of the present invention, oil-water mixture passes through entry to mixed solution 109 by high-pressure pump and enters in separator main body, from mixed solution jet orifice 110, be ejected in spiral slot 108, by the rotation along spiral slot 108, wherein by the material eddy flow of lightweight to the mid-way of spiral slot cylindrical shell 104 and constantly float to separator fluid accumulation area 103 places, then by oil discharge outlet 106, discharge.The larger water of proportion is all the time near the marginal position of spiral slot cylindrical shell, at eddy flow behind spiral slot cylindrical shell top, from flowing water district 107, flow to bottom by water shoot 113 through water port 101 device for transferring.Wherein draining regulated valve 102 can be adjusted the speed of water outlet and the discharge of fluid height, and wherein oil extraction regulated valve 105 can regulate fuel-displaced water ratio.
The above; be only the present invention's embodiment preferably, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.This area those skilled in the art are appreciated that in the situation that do not deviate from the spirit and scope of the present invention of claims definition, can in form and details, make various modifications.
Claims (7)
1. a greasy dirt mixture separation system, its main body is the separator main body (114) of roughly cylindrical tube shape, and major parts comprises spiral slot cylindrical shell (104), spiral slot (108), mixed solution entry portal (110), water shoot (113), particulate matter settlement plate (111) and separator main body (114); In separator main body (114) inner side, be provided with spiral slot cylindrical shell (104), be close to spiral slot cylindrical shell (104) inwall spiral slot (108) is installed; In separator main body (114) bottom, be provided with entry to mixed solution (109), the mixed solution of entry to mixed solution (109) enters flow velocity more than 2m/s.
2. greasy dirt mixture separation system according to claim 1, it is characterized in that: spiral slot cylindrical shell (104) is for cyclonic separation, the oil-water mixture entering from entry to mixed solution (109) jet flows in groove along spiral slot (108), the heavier material of proportion is adjacent to cell wall to upper reaches, and the lighter material of proportion is the eddy flow slow floating of waiting a moment to spiral slot cylindrical shell (104) mid-way gradually.
3. greasy dirt mixture separation system according to claim 2, is characterized in that: (108 for entity structure is fixed on spiral slot cylindrical shell (104) above, and the installation pitch H of spiral slot (108) is 75mm, groove depth 60mm for spiral slot.
4. greasy dirt mixture separation system according to claim 3, is characterized in that: the proportionlity of groove depth, pitch and entry to mixed solution diameter 1: 1: 1.25, i.e. groove depth: pitch: inlet diameter (entry to mixed solution 109 diameters)=1: 1: 1.25.
5. greasy dirt mixture separation system according to claim 1, it is characterized in that: greasy dirt mixture separation system also comprises water port (101), draining regulated valve (102), separator fluid accumulation area (103), oil extraction regulated valve (105), water port (101), its for the treatment of after water from this water port (101), discharge; Draining regulated valve (102), it coordinates water inlet to regulate and uses for adjusting water outlet height and Water discharge flow speed; Separator fluid accumulation area (103), the fluid that rotating separation goes out floats to region clustering herein and treats outer row; Oil extraction regulated valve (105), it when oil mass is lower, closes oil extraction regulated valve (105) for by regulating fuel-displaced flow to control fuel-displaced water ratio, when oil mass is higher, then opens oil extraction regulated valve (105).
6. greasy dirt mixture separation system according to claim 1, is characterized in that: greasy dirt mixture separation system also comprises oil discharge outlet (106), and moisture lower fluid is discharged from here; Most of isolated Shui Cong flowing water district (107) (gap) flows to below separator main body.Water below flowing water district (107) (gap) flows to separator main body is discharged from water port (101) by water shoot (113).
7. according to arbitrary described greasy dirt mixture separation system of claim 2-6, it is characterized in that: the mouth of pipe of mixed solution entry portal (110) is tangential with spiral slot 108 and contacts.
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| CN201410033548.6A CN103754986B (en) | 2014-01-24 | 2014-01-24 | A kind of Oil stain mixture separation system |
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| CN201410033548.6A CN103754986B (en) | 2014-01-24 | 2014-01-24 | A kind of Oil stain mixture separation system |
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| CN103754986A true CN103754986A (en) | 2014-04-30 |
| CN103754986B CN103754986B (en) | 2015-09-09 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106110754A (en) * | 2016-08-15 | 2016-11-16 | 武汉金牛经济发展有限公司 | A kind of rainwater greasy dirt separates and defecator |
| CN106630002A (en) * | 2017-02-24 | 2017-05-10 | 湖北君集水处理有限公司 | Cyclone separator with straight pipe swirl water inlet structure |
| CN109731680A (en) * | 2018-12-30 | 2019-05-10 | 浙江速博机械科技有限公司 | A kind of iron filings permeability device |
| CN113023914A (en) * | 2019-12-25 | 2021-06-25 | 大庆油田有限责任公司 | Oil-water separation treatment system and treatment method for oil field chemical flooding oil displacement produced water |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101406768A (en) * | 2008-11-13 | 2009-04-15 | 林英姿 | Unpowered water-oil separating method and apparatus |
| CN201746872U (en) * | 2010-07-29 | 2011-02-16 | 兰州交通大学 | Automatic initial roof rainwater drainage and vertical cyclone desanding integrated equipment |
-
2014
- 2014-01-24 CN CN201410033548.6A patent/CN103754986B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101406768A (en) * | 2008-11-13 | 2009-04-15 | 林英姿 | Unpowered water-oil separating method and apparatus |
| CN201746872U (en) * | 2010-07-29 | 2011-02-16 | 兰州交通大学 | Automatic initial roof rainwater drainage and vertical cyclone desanding integrated equipment |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106110754A (en) * | 2016-08-15 | 2016-11-16 | 武汉金牛经济发展有限公司 | A kind of rainwater greasy dirt separates and defecator |
| CN106110754B (en) * | 2016-08-15 | 2019-04-19 | 武汉金牛经济发展有限公司 | A kind of separation of rainwater greasy dirt and filter device |
| CN106630002A (en) * | 2017-02-24 | 2017-05-10 | 湖北君集水处理有限公司 | Cyclone separator with straight pipe swirl water inlet structure |
| CN109731680A (en) * | 2018-12-30 | 2019-05-10 | 浙江速博机械科技有限公司 | A kind of iron filings permeability device |
| CN113023914A (en) * | 2019-12-25 | 2021-06-25 | 大庆油田有限责任公司 | Oil-water separation treatment system and treatment method for oil field chemical flooding oil displacement produced water |
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| CN103754986B (en) | 2015-09-09 |
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