CN104030465A - Oil-water separation system - Google Patents
Oil-water separation system Download PDFInfo
- Publication number
- CN104030465A CN104030465A CN201410120979.6A CN201410120979A CN104030465A CN 104030465 A CN104030465 A CN 104030465A CN 201410120979 A CN201410120979 A CN 201410120979A CN 104030465 A CN104030465 A CN 104030465A
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- Prior art keywords
- tank body
- water
- filter
- plate
- coalescing
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 238000000926 separation method Methods 0.000 title claims abstract description 19
- 239000012528 membrane Substances 0.000 claims abstract description 53
- 239000010865 sewage Substances 0.000 claims abstract description 49
- 238000001914 filtration Methods 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 42
- 230000000630 rising effect Effects 0.000 claims description 15
- 238000013327 media filtration Methods 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 230000008021 deposition Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 12
- 238000004581 coalescence Methods 0.000 abstract description 7
- 238000005374 membrane filtration Methods 0.000 abstract 3
- 239000000706 filtrate Substances 0.000 description 8
- 238000011010 flushing procedure Methods 0.000 description 7
- 238000011001 backwashing Methods 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005202 decontamination Methods 0.000 description 2
- 230000003588 decontaminative effect Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides an oil-water separation system, comprising a filter material filtering apparatus and a membrane filtration apparatus which are in series connection, wherein a filter material layer and a first coalescence plate are arranged in the filter material filtering apparatus, a second coalescence plate and a filter membrane are arranged in the membrane filtration apparatus, and sewage undergoes rough filtration by the filter material layer and the first coalescence plate in the filter material filtering apparatus, then flows into the membrane filtration apparatus, undergoes fine filtration by the second coalescence plate and the filter membrane and finally flows out. Through two-stage filtration, filtering quality of the sewage is improved, and a better purifying effect is obtained.
Description
Technical field
The present invention relates to sewage treatment area, refer in particular to a kind of oil-water separation system with two filtering systems.
Background technology
Industrialization oily(waste)water complicated component, contain oil slick, silt or oil-containing solids thing etc., mainly adopt at present two media or more medium filter, or fiber ball filter is processed, while adopting these equipment to process, the pollutent in water all adsorbs screening throttling by filter core, after filtrate is saturated, carries out back flushing, during back flushing, pollutent separates from filter core under the effect of current and air-flow.After long-time filtration treatment, filter core is prone to and hardens, and oil slick is also difficult for discharging in time, and poor filtration effect, finally causes processing water not up to standard, needs to change in time filtrate, has improved use cost., because the flow velocity of water inlet is excessive, also easily the filtrate formula that impacts is damaged, filter effect also lowers because current are too fast meanwhile.In addition, current single-filtering device, also not satisfactory to the filter effect of sewage, single-stage is filtered, and the filtration load of filter membrane is larger, and the impurity adhering to is more, affects filtration efficiency and the quality of sewage, the work-ing life of also having reduced filter membrane.
Summary of the invention
Based on the deficiencies in the prior art, main purpose of the present invention be to provide a kind of filtration efficiency and quality high, the oil-water separation system of a kind of dual system that filter membrane load is little.
The invention provides a kind of oil-water separation system, it comprises media filtration device and the membrane filter appts of mutual series connection, in media filtration device, be equiped with filter material layer and the first coalescing-plate, in membrane filter appts, be equiped with the second coalescing-plate and filter membrane, sewage carries out after coarse filtration through filter material layer and the first coalescing-plate in media filtration device, flow in membrane filter appts, through the second coalescing-plate and filter membrane, carry out flowing out after essence filter.By two-stage filtration, improve the quality of sewage water filtration, make decontamination effect improving better.
Wherein, on media filtration device and membrane filter appts, be equipped with oil discharge outlet, for discharging the greasy dirt that floats on sewage top.Described oil discharge outlet is opened in respectively the top of the first tank body and the second tank body.By greasy dirt and the separated removing of sewage impurity, provide filtration efficiency and quality.
Preferably, between described the first tank body and the second tank body, by header, be interconnected, so that sewage is imported from the first tank body, in the second tank body, carry out essence filter.
Preferably, in media filtration device, comprise the first tank body, water-in, filter material layer and the first coalescing-plate, described water-in is opened in the lower end sidewall of the first tank body, filter material layer is laid in the Lower Half of the first tank body, described the first coalescing-plate is laid in the first half of the first tank body, and sewage is entered in the first tank body by water-in from bottom to up, carries out coarse filtration deposition impurity successively via filter material layer and the first coalescing-plate.
In membrane filter appts, comprise the second tank body, inhalent siphon, the second coalescing-plate, filter membrane and rising pipe, described inhalent siphon is connected with header, sewage after coarse filtration in the first tank body is introduced in the second tank body and carried out essence filter, and the second coalescing-plate is laid in the first half of the second tank body, and filter membrane is erected in rising pipe top, and be communicated with it, sewage from top to bottom enters the second tank body from inhalent siphon, carries out, after essence filter, by water outlet, being derived successively via coalescing-plate and filter membrane.
Preferably, in described filter material layer, be penetrated with an adjusting screw, described adjusting screw comprises an expansion link and setting nut, described filter material layer comprises pressing plate and water distribution board, described expansion link runs through whole filter material layer, and is butted between pressing plate and water distribution board, and described setting nut is located at pressing plate top, by turn setting nut, change the thickness of filter material layer.
Preferably, described inhalent siphon is inverted T shape, comprises orthogonal coupling end and water intake end, and described coupling end is connected with header, is laid with several water inlets relative with the second coalescing-plate on water intake end.By the inhalent siphon of inverted T shape, dispersedly sewage is imported in the second tank body, make, into water homogenizing, to have reduced flow velocity, sewage is imported in the second coalescing-plate equably.
Preferably, in membrane filter appts, also further comprise recoil water outlet and inlet pipe, described recoil water outlet is installed in the top of the second tank body, described inlet pipe is located at the lower end of the second tank body, and it is communicated with rising pipe, in backwash process, by rising pipe or inlet pipe, import water or gas carries out after gas backwash, water backwash or air water associating backwash, by recoil water outlet, flowed out.
Compared with prior art, a kind of oil-water separation system of the present invention has adopted the two covers filtration unit of series connection mutually, sewage imports in the first tank body, the bed of material carries out coarse filtration after filtration, the most suspended impurity of filtering, filter material layer can be adjusted the thickness of filter material layer by adjusting screw, adjust the gap of filtrate.Sewage after the first step is filtered, then import in the filtering system of the second stage, by filter membrane, carry out essence and filter, at this moment, remove the large granular impurity in sewage, reduced the filtration load of filter membrane, improve efficiency and the depuration quality of filtering, thereby extended the work-ing life of filter membrane.
Accompanying drawing explanation
Fig. 1 is the filtration condition figure of a kind of oil-water separation system of the present invention;
Fig. 2 is the back flushing state graph of a kind of oil-water separation system of the present invention.
Embodiment
Shown in Fig. 1-2, the invention provides a kind of oil-water separation system, it comprises media filtration device 1 and the membrane filter appts 2 of mutual series connection, in media filtration device 1, be equiped with filter material layer 10 and the first coalescing-plate 11, in membrane filter appts 2, be equiped with the second coalescing-plate 20 and filter membrane 21, sewage carries out after coarse filtration through filter material layer 10 and the first coalescing-plate 11 in media filtration device 1, flows in membrane filter appts 2, through the second coalescing-plate 20 and filter membrane 21, carries out flowing out after essence filter.By two-stage filtration, improve the quality of sewage water filtration, make decontamination effect improving better.
In media filtration device 1, comprise the first coalescing-plate 11, the first tank body 12, water-in 13, filter material layer 10, oil discharge outlet 15 and sewage draining exit 16, described water-in 13 is opened in the lower end sidewall of the first tank body 12, filter material layer 10 is laid in the Lower Half of the first tank body 12, described the first coalescing-plate 11 is laid in the first half of the first tank body 12, sewage is entered in the first tank body 12 by water-in from bottom to up, carries out coarse filtration deposition impurity successively via filter material layer 10 and the first coalescing-plate 11.
Described filter material layer 10 and the first coalescing-plate 11 are built in the first tank body 12, described filter material layer 10 is fixed on the bottom of the first tank body 12, described filter material layer comprises pressing plate 10a and water distribution board 10b, and filtrate is distributed in the cavity between pressing plate 10a and water distribution board 10b equably.In described filter material layer 10, be penetrated with an adjusting screw 102, described adjusting screw 102 comprises an expansion link 102a and setting nut 102b, described expansion link 102a runs through whole filter material layer 10, and be butted between pressing plate 10a and water distribution board 10b, described setting nut 102b is located at pressing plate top, by turn setting nut 102b, change the thickness of filter material layer 10.According to process lot size, calculate required filtering layer virtual height, in conjunction with tamped density, while then screwing setting nut 102b, promote pressing plate 10a and move down, compression filter material layer 10 until desired height to filter sewage.The first coalescing-plate 11 is fixed on the upper strata of the first tank body 12, and after filtration after the filtration of the bed of material, the coalescence effect of the tiny oil droplet containing by coalescing-plate becomes large floating upward quickly to tank body top is derived by oil discharge outlet 15.
Described water-in 13 is located at the below of filter material layer 10, makes the sewage importing from water-in 13 to carry out coarse filtration via filter material layer 10.Described oil discharge outlet 15 is arranged at the top of the first tank body 12, for discharging the greasy dirt that floats on sewage top, by greasy dirt and the separated removing of sewage impurity, provides filtration efficiency and quality.Described sewage draining exit 16 is opened in the bottom of the first tank body 12, after the filtrate in the first tank body rinses, the sewage after rinsing can be emitted from sewage draining exit.
In membrane filter appts 2, comprise the second coalescing-plate 20, filter membrane 21, the second tank body 22, inhalent siphon 23, rising pipe 24, oil discharge outlet 25, recoil water outlet 26 and inlet pipe 27, described the second coalescing-plate 20 and filter membrane 21 are built in the second tank body 22, wherein, the second coalescing-plate 20 is fixed on the top of the second tank body 22, and it is relative with inhalent siphon 23.Described inhalent siphon 23 is connected with header 3, sewage after coarse filtration in the first tank body 1 is introduced and in the second tank body 2, carried out essence filter, the second coalescing-plate 20 is laid in the first half of the second tank body 1, filter membrane 21 is erected in rising pipe 24 tops, and be communicated with it, sewage from top to bottom enters the second tank body 2 from inhalent siphon 23, carries out, after essence filter, by rising pipe 24, being derived successively via the second coalescing-plate 20 and filter membrane 21.The effect of two coalescing-plates is the same, has been all coalescence effect, is mainly little oil droplet to be carried out coalescent, and making it become large floating upward quickly derives by oil discharge outlet to tank body top.
Described inhalent siphon 23 is inverted T shape, comprises orthogonal coupling end 230 and water intake end 232, and described coupling end 230 is connected with header 3, is laid with several water inlets relative with the second coalescing-plate 20 on water intake end 23.By the inhalent siphon 23 of inverted T shape, sewage is imported in the second tank body 2 dispersedly, make, into water homogenizing, to have reduced flow velocity, sewage is imported in the second coalescing-plate 20 equably and filter.Described oil discharge outlet 25 is installed in the top of membrane filter appts 2, for discharging the greasy dirt that floats on sewage top, by greasy dirt and the separated removing of sewage impurity, provides filtration efficiency and quality.
Described recoil water outlet 26 is installed in the top of the second tank body 2, and described inlet pipe 27 is located at the lower end of the second tank body 1, and it is communicated with rising pipe 24.In backwash process, by rising pipe 24 or inlet pipe 27, import water or gas carries out after gas backwash, water backwash or air water associating backwash, by recoil water outlet 26, flowed out.When back flushing, by advertising to filtering membrane ventilation, to blow the dirt being attached on filter membrane, depart from.The back flushing of filter membrane adopts pneumatic pressure to stir the full emptying technique of technique and backwashing water bottom and combines, reduced backwashing water energy consumption, reduce the consumption of backwashing water, greatly improved the regeneration effect of filter membrane, avoided the phenomenon that hardens, extend the work-ing life of filter membrane, reduced the expense of operation.
In sewage water filtration process, open the water-in 13 of the first tank body 1, to the first tank body 1, import sewage, effluent stream is through filter material layer 10, by filtrate, stop most suspended substances, sewage flows from the bottom to top, then, after the first coalescing-plate 11 coalescence effects, by the header 3 that connects two tank bodies, sewage is imported in the second tank body 2 by the first tank body 1, sewage sprays to the second coalescing-plate 20 from inhalent siphon 23, sewage is flowed from top to bottom, and permeation filtration repeatedly in filter membrane 21, makes tiny impurity absorption on filter membrane, finally, by rising pipe 24, discharged.Greasy dirt layering in sewage is processed, and because the proportion of greasy dirt is less, easily floats on the upper strata of sewage, at the top of two tank bodies, is equipped with oil discharge outlet, and the greasy dirt in sewage is therefrom pumped out, and has reduced the absorption of greasy dirt to coalescing-plate and filter membrane.
After operation for some time, if the losing efficacy of filtrating box of single filter can recover its strainability again by changing filtrate; If the filter membrane of cascade filtration lost efficacy, can carry out back flushing to film, recover its membrane flux.The mode of cleaning can be gas backwash, water backwash or combined water and air backwash, during back flushing, by the first tank body 1 isolation, clean water enters by rising pipe 24, gas enters the second tank body 2 from inlet mouth 28, after filter membrane 21 is cleaned, water outlet is drained by recoil water outlet, can clean filter membrane.
Claims (9)
1. an oil-water separation system, it is characterized in that: the media filtration device and the membrane filter appts that comprise mutual series connection, in media filtration device, be equiped with filter material layer and the first coalescing-plate, in membrane filter appts, be equiped with the second coalescing-plate and filter membrane, sewage carries out after coarse filtration through filter material layer and the first coalescing-plate in media filtration device, flow in membrane filter appts, through the second coalescing-plate and filter membrane, carry out flowing out after essence filter.
2. oil-water separation system according to claim 1, is characterized in that: on media filtration device and membrane filter appts, be equipped with oil discharge outlet, for discharging the greasy dirt that floats on sewage top.
3. oil-water separation system according to claim 2, is characterized in that: described oil discharge outlet is opened in respectively the top of the first tank body and the second tank body.
4. oil-water separation system according to claim 2, is characterized in that: between described the first tank body and the second tank body, by header, be interconnected.
5. oil-water separation system according to claim 1, it is characterized in that: in media filtration device, comprise the first tank body, water-in, filter material layer and the first coalescing-plate, described water-in is opened in the lower end sidewall of the first tank body, filter material layer is laid in the Lower Half of the first tank body, described the first coalescing-plate is laid in the first half of the first tank body, and sewage is entered in the first tank body by water-in from bottom to up, carries out coarse filtration deposition impurity successively via filter material layer and the first coalescing-plate.
6. oil-water separation system according to claim 4, it is characterized in that: in membrane filter appts, comprise the second tank body, inhalent siphon, the second coalescing-plate, filter membrane and rising pipe, described inhalent siphon is connected with header, sewage after coarse filtration in the first tank body is introduced and in the second tank body, carried out essence filter, the second coalescing-plate is laid in the first half of the second tank body, filter membrane is erected in rising pipe top, and be communicated with it, sewage from top to bottom enters the second tank body from inhalent siphon, via coalescing-plate and filter membrane, carry out, after essence filter, by water outlet, being derived successively.
7. oil-water separation system according to claim 6, it is characterized in that: in described filter material layer, be penetrated with an adjusting screw, described adjusting screw comprises an expansion link and setting nut, described filter material layer comprises pressing plate and water distribution board, described expansion link runs through whole filter material layer, and is butted between pressing plate and water distribution board, and described setting nut is located at pressing plate top, by turn setting nut, change the thickness of filter material layer.
8. oil-water separation system according to claim 6, it is characterized in that: described inhalent siphon is inverted T shape, comprise orthogonal coupling end and water intake end, described coupling end is connected with header, is laid with several water inlets relative with the second coalescing-plate on water intake end.
9. oil-water separation system according to claim 8, it is characterized in that: in membrane filter appts, also further comprise recoil water outlet and inlet pipe, described recoil water outlet is installed in the top of the second tank body, described inlet pipe is located at the lower end of the second tank body, and it is communicated with rising pipe, in backwash process, by rising pipe or inlet pipe, import water or gas carries out after gas backwash, water backwash or air water associating backwash, by recoil water outlet, flowed out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410120979.6A CN104030465A (en) | 2014-03-27 | 2014-03-27 | Oil-water separation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410120979.6A CN104030465A (en) | 2014-03-27 | 2014-03-27 | Oil-water separation system |
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| CN104030465A true CN104030465A (en) | 2014-09-10 |
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| CN201410120979.6A Pending CN104030465A (en) | 2014-03-27 | 2014-03-27 | Oil-water separation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113337309A (en) * | 2021-06-07 | 2021-09-03 | 盘锦宁泰能源科技有限公司 | Waste mineral oil purification device and purification method thereof |
| CN118791147A (en) * | 2023-04-11 | 2024-10-18 | 大庆油田有限责任公司 | An on-site separation device capable of quickly recovering mixed liquid on the ground |
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|---|---|---|---|---|
| JPS6249915A (en) * | 1985-08-26 | 1987-03-04 | Eiichi Sugiura | Oil-water separator |
| CN101041481A (en) * | 2007-03-13 | 2007-09-26 | 甘宪 | Oil-water auto segregation-recovery system |
| CN101559292A (en) * | 2009-05-12 | 2009-10-21 | 上海西恩化工设备有限公司 | Oil removing technique by filtration method |
| CN202594827U (en) * | 2012-05-08 | 2012-12-12 | 深圳市比斯坦科技有限公司 | Oily sewage separating device |
| CN203048695U (en) * | 2013-02-19 | 2013-07-10 | 乔杨 | Oil-water separation device for kitchen sewage |
| CN203187468U (en) * | 2013-02-25 | 2013-09-11 | 江苏清溢环保设备有限公司 | Display-type coarse graining filter |
| CN103408153A (en) * | 2013-07-29 | 2013-11-27 | 常州大学 | Physical emulsion resolving treating device for sewage containing emulsified oil and treating method thereof |
| CN203360063U (en) * | 2013-08-01 | 2013-12-25 | 中国石油化工股份有限公司 | Efficient coalescent oil removal device for oily sewage in oilfield |
| CN203437039U (en) * | 2013-07-02 | 2014-02-19 | 天津海赛纳米材料有限公司 | Double-membrane filtering device |
| CN203877984U (en) * | 2014-03-27 | 2014-10-15 | 深圳市比斯坦科技有限公司 | Oil-water separation system |
-
2014
- 2014-03-27 CN CN201410120979.6A patent/CN104030465A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6249915A (en) * | 1985-08-26 | 1987-03-04 | Eiichi Sugiura | Oil-water separator |
| CN101041481A (en) * | 2007-03-13 | 2007-09-26 | 甘宪 | Oil-water auto segregation-recovery system |
| CN101559292A (en) * | 2009-05-12 | 2009-10-21 | 上海西恩化工设备有限公司 | Oil removing technique by filtration method |
| CN202594827U (en) * | 2012-05-08 | 2012-12-12 | 深圳市比斯坦科技有限公司 | Oily sewage separating device |
| CN203048695U (en) * | 2013-02-19 | 2013-07-10 | 乔杨 | Oil-water separation device for kitchen sewage |
| CN203187468U (en) * | 2013-02-25 | 2013-09-11 | 江苏清溢环保设备有限公司 | Display-type coarse graining filter |
| CN203437039U (en) * | 2013-07-02 | 2014-02-19 | 天津海赛纳米材料有限公司 | Double-membrane filtering device |
| CN103408153A (en) * | 2013-07-29 | 2013-11-27 | 常州大学 | Physical emulsion resolving treating device for sewage containing emulsified oil and treating method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113337309A (en) * | 2021-06-07 | 2021-09-03 | 盘锦宁泰能源科技有限公司 | Waste mineral oil purification device and purification method thereof |
| CN113337309B (en) * | 2021-06-07 | 2022-09-16 | 盘锦宁泰能源科技有限公司 | Waste mineral oil purification device and purification method thereof |
| CN118791147A (en) * | 2023-04-11 | 2024-10-18 | 大庆油田有限责任公司 | An on-site separation device capable of quickly recovering mixed liquid on the ground |
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Application publication date: 20140910 |