CN203710803U - Sewage filter - Google Patents
Sewage filter Download PDFInfo
- Publication number
- CN203710803U CN203710803U CN201420056472.4U CN201420056472U CN203710803U CN 203710803 U CN203710803 U CN 203710803U CN 201420056472 U CN201420056472 U CN 201420056472U CN 203710803 U CN203710803 U CN 203710803U
- Authority
- CN
- China
- Prior art keywords
- filter
- sewage
- tank body
- outlet pipe
- inlet pipe
- 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 - Fee Related
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000012528 membrane Substances 0.000 claims abstract description 30
- 238000001914 filtration Methods 0.000 claims abstract description 21
- 238000000746 purification Methods 0.000 claims abstract description 9
- 238000005238 degreasing Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000011001 backwashing Methods 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000011403 purification operation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model provides a sewage filter. The sewage filter comprises a tank body, wherein a water inlet pipe, an oil discharge outlet and a backwashing water outlet pipe are arranged at the top of the tank body; an air inlet pipe, a water outlet pipe and a sewage discharging pipe are arranged at the bottom of the tank body; a multistage filtration device is further arranged in the tank body; a first-stage filtration device is arranged above a second-stage filtration device; after sewage is guided through the water inlet pipe and filtered by the first-stage filtration device, oil stain floats upwards to the oil discharge outlet and then is led out; the sewage without the oil stain is filtered by the second-stage filtration device and then discharged by the water outlet pipe. By processing the sewage in stages through two stages of purification processes according to the characteristics of different filtration devices, the pollution to pipelines and filtration membranes by the oil stain can be avoided, thus reducing the costs for washing and maintaining the filter and also obviously improving the sewage purifying efficiency and quality.
Description
Technical field
The utility model relates to sewage treatment area, refers in particular to a kind of effluent filter.
Background technology
Industrialization oil-polluted water complicated component, contain oil slick, silt or oil-containing fixture etc., main two media or the more medium filter of adopting at present, or fiber ball filter is processed, while adopting these equipment to process, pollutant in water all adsorbs screening throttling by filter core, after filtrate is saturated, carries out backwash, and when backwash, pollutant separates from filter core under stirring action again.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.
Utility model content
Based on the deficiencies in the prior art, main purpose of the present utility model be to provide a kind of can be by the effluent filter of the greasy dirt in sewage and the processing of suspended impurity separating purification.
The utility model provides a kind of effluent filter, comprise tank body, described tank body is provided with water inlet pipe, oil drain out and recoil outlet pipe at top, be provided with air inlet pipe, outlet pipe and blow-off pipe in the bottom of tank body, wherein, in described tank body, also further comprise Multistage filtering device, first order filter is located at the top of second level filter, sewage is imported by water inlet pipe, after first order filter filters, greasy dirt floats up to oil drain out and derives, and the sewage of degreasing is discharged by outlet pipe after second level filter filters.
Preferably, described first order filter comprises coalescing-plate and water distributing plate, and coalescing-plate perisporium is attached on the inwall of tank body, assembles for the oil droplet to sewage, and water distributing plate is installed in the top of coalescing-plate, so that sewage is imported in coalescing-plate and to be filtered equably.
Preferably, described second level filter is the some groups of filter membranes that are parallel to each other, and one end of described filter membrane is communicated with outlet pipe, sewage via second level filter filtration, purification after, derived by outlet pipe.
Preferably, described air inlet pipe is communicated with outlet pipe, and in the time of backwash, gas is exported by air inlet pipe, via after outlet pipe gas distribution, filter membrane being carried out to backwash.Described water inlet pipe is T-shaped structure, offers a plurality of water inlets in water side.
Compared with prior art, a kind of effluent filter of the utility model arranges dual stage filter apparatus, first coalescentization of greasy dirt in sewage is separated and is extracted, and has avoided pollution filter membrane, outlet pipe etc. being caused due to greasy dirt, being difficult to of causing cleans, and reduces the phenomenon such as flux reduction of filter membrane; By filter membrane, the impurity in sewage is purified, the impurity of suspension class is flocked on to the surface of filter membrane, sewage is after filtering discharged by outlet pipe again.Like this, through two-step purification operation, according to the feature of different filters, respectively sewage is carried out to classification processing, both can avoid the pollution of greasy dirt to pipeline and filter membrane, reduce the cost that cleaning filter is safeguarded, also obviously improve efficiency and the quality of sewage purification.In addition, air inlet pipe is connected with outlet pipe, has simplified circuit design, in backwash process, can carry out backwash operation by outlet pipe importing water purification or gas to filter membrane as required.Water inlet pipe adopts inverted T shape design, and more water inlet imports sewage, reduces the flow velocity of sewage, improves and purifies quality.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of effluent filter of the utility model;
Fig. 2 is the filtration condition figure of a kind of effluent filter of the utility model;
Fig. 3 is the backwash state diagram of a kind of effluent filter of the utility model.
Detailed description of the invention
Shown in Fig. 1, the utility model provides a kind of effluent filter, comprise tank body 1, described tank body 1 is provided with water inlet pipe 10 at top, oil drain out 11 and recoil outlet pipe 12, be provided with air inlet pipe 13 in the bottom of tank body 1, outlet pipe 14 and blow-off pipe 15, wherein, in described tank body 1, also further comprise Multistage filtering device 16, first order filter 160 is located at the top of second level filter 161, sewage is imported by water inlet pipe 10, after first order filter 160 filters, greasy dirt floats up to oil drain out 11 and derives, the sewage of degreasing is discharged by outlet pipe 14 after second level filter 161 filters.
Described water inlet pipe 10 is opened in the top of tank body 1, it is inverted T shape, for introducing sewage to be filtered, offer a plurality of water inlets 101 in the water side of water inlet pipe 10, described each water inlet 101 is in one line, and the sewage of introducing from the water inlet end of water inlet pipe 10 is imported in the cavity of tank body 1 by a plurality of water inlets 101 of water side.Described oil drain out 11 and recoil outlet pipe 12 are all arranged at the top of tank body 1, and wherein, oil drain out 11 is for the greasy dirt of effluent sewerage, the sewage of recoil outlet pipe 12 when discharging backwash.
In tank body 1, dual stage filter apparatus is installed, comprise first order filter 160 and second level filter 161, wherein, described first order filter 160 comprises coalescing-plate 160a and water distributing plate 160b, first the greasy dirt in sewage is carried out to coalescent coarse filtration by first order filter 160, described coalescing-plate 160a is corrugated porous filter plate, perisporium is attached on the inwall of tank body 1, for the oil droplet of sewage is assembled and separating treatment, the width of described coalescing-plate 160a equals the internal diameter of tank body 1, by strengthening the surface area of separation equipment, shorten the distance of oil droplet buoyance lift, improve the stability of current, improve water-oil separating efficiency.Described water distributing plate 160b is installed in the top of coalescing-plate 160a, in first order filter 160, greasy dirt is carried out to pretreatment, the sewage being imported by water inlet pipe 10, flow into equably coalescing-plate 160a from water distributing plate 160b, oil droplet large in sewage is by the coalescence effect of coalescing-plate 160a, form larger oil droplet and float up to the water surface, then by oil drain out 11, greasy dirt is discharged.
Described second level filter 160b is the some groups of filter membranes that are parallel to each other, and one end of described filter membrane is communicated with outlet pipe 14, perpendicular with outlet pipe 14, and in the present embodiment, described filter membrane is made as 3.The sewage of being derived by coalescing-plate 160a, through first order filter 160a, oil droplet is carried out after coalescent extraction, enter second level filter 160b and carry out impurity purified treatment, the floating knot of impurity in sewage is on filter membrane, and the sewage after purified treatment is discharged recovery by outlet pipe 14.
Described air inlet pipe 13 is arranged at the below of tank body 1, and it is connected with outlet pipe 14, for importing gas at backwash process to tank body, filter membrane is carried out to backwash operation, and the impurity depositing on filter membrane is rinsed.Described blow-off pipe 15 is located at the bottom of tank body 1, after filtering, opens blow-off pipe 15 and sewage can be discharged from tank body 1.
Be elaborated to adopting effluent filter of the present utility model to filter with the process of backwash below.
Shown in Fig. 2, in filter process, first, carry out greasy dirt pretreatment, import sewage by water inlet pipe 10, usually, in sewage, contain greasy dirt and suspension, sewage is flowed in coalescing-plate 160a equably by water distributing plate 160b, in coalescing-plate 160a, oil droplet is constantly coalescent, changes from small to big and gradually pools larger oil droplet, float up to the water surface, then take out and draw and discharge by oil drain out 11; Next, impurity is carried out to filtration, purification, the sewage after filtering greasy dirt flows into tank body below by coalescing-plate 160a and flows in filter membrane, by constantly flowing inside and outside filter membrane, impurity is flocked on filter membrane, and the sewage after filtration, purification, flows as derived in outlet pipe 14 along pipeline in filter membrane.Below sewage in, as also, with greasy dirt, because oily proportion is less, it also can slowly float up on coalescing-plate, from oil drain out 11 derive.Can complete the separating treatment of greasy dirt and impurity, avoid greasy dirt to be flocked on filter membrane, outlet pipe, inner tank wall etc., have improved quality and the efficiency of sewage purification greatly, have reduced the clean and maintenance cost to filter.
Filter is after operation a period of time, and filter membrane surface tends to form one deck cake layer, causes the flux of filter membrane to reduce, and needs periodic cleaning totally to come into operation again.Shown in Fig. 3, the backwash process of described effluent filter, can adopt water recoil, gas recoil or air water to combine the various ways such as recoil.When water recoil, in filter membrane, pour clear water by delivery port 14; When gas recoil, blast air by air blast from air inlet pipe 13 to filter membrane, via after outlet pipe 14 gas distributions, filter membrane being carried out to backwash, by water or the gas of recoil, cake layer coalescent on filter membrane is rinsed and come off, and the sewage after backwash is discharged by the recoil outlet pipe 12 at tank body top.
Claims (8)
1. an effluent filter, comprise tank body, described tank body is provided with water inlet pipe, oil drain out and recoil outlet pipe at top, be provided with air inlet pipe, outlet pipe and blow-off pipe in the bottom of tank body, it is characterized in that: in described tank body, also further comprise Multistage filtering device, first order filter is located at the top of second level filter, sewage is imported by water inlet pipe, after first order filter filters, greasy dirt floats up to oil drain out and derives, and the sewage of degreasing is discharged by outlet pipe after second level filter filters.
2. effluent filter according to claim 1, is characterized in that: described first order filter comprises coalescing-plate, and its perisporium is attached on the inwall of tank body, assembles for the oil droplet to sewage.
3. effluent filter according to claim 2, is characterized in that: described first order filter also comprises water distributing plate, and it is installed in the top of coalescing-plate, so that sewage is imported in coalescing-plate and to be filtered equably.
4. effluent filter according to claim 2, is characterized in that: described second level filter is the some groups of filter membranes that are parallel to each other, and one end of described filter membrane is communicated with outlet pipe, sewage via second level filter filtration, purification after, derived by outlet pipe.
5. effluent filter according to claim 4, is characterized in that: described air inlet pipe is communicated with outlet pipe, and in the time of backwash, gas is exported by air inlet pipe, via after outlet pipe gas distribution, filter membrane being carried out to backwash.
6. effluent filter according to claim 1, is characterized in that: described water inlet pipe is T-shaped structure, offers a plurality of water inlets in water side.
7. effluent filter according to claim 2, is characterized in that: described coalescing-plate is corrugated porous filter plate.
8. effluent filter according to claim 3, is characterized in that: the width of described coalescing-plate equals the internal diameter of tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420056472.4U CN203710803U (en) | 2014-01-28 | 2014-01-28 | Sewage filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420056472.4U CN203710803U (en) | 2014-01-28 | 2014-01-28 | Sewage filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203710803U true CN203710803U (en) | 2014-07-16 |
Family
ID=51150006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420056472.4U Expired - Fee Related CN203710803U (en) | 2014-01-28 | 2014-01-28 | Sewage filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203710803U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103768857A (en) * | 2014-01-28 | 2014-05-07 | 深圳市比斯坦科技有限公司 | Sewage filter |
| CN109305718A (en) * | 2017-11-16 | 2019-02-05 | 中国石油化工股份有限公司 | A kind of crude oil tank farm fire-fighting sewage emergency treatment device and sewage water treatment method |
-
2014
- 2014-01-28 CN CN201420056472.4U patent/CN203710803U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103768857A (en) * | 2014-01-28 | 2014-05-07 | 深圳市比斯坦科技有限公司 | Sewage filter |
| CN109305718A (en) * | 2017-11-16 | 2019-02-05 | 中国石油化工股份有限公司 | A kind of crude oil tank farm fire-fighting sewage emergency treatment device and sewage water treatment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20170128 |