CN204034348U - A kind of deep-bed filter precipitation position backwashing system - Google Patents
A kind of deep-bed filter precipitation position backwashing system Download PDFInfo
- Publication number
- CN204034348U CN204034348U CN201420433778.7U CN201420433778U CN204034348U CN 204034348 U CN204034348 U CN 204034348U CN 201420433778 U CN201420433778 U CN 201420433778U CN 204034348 U CN204034348 U CN 204034348U
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- Prior art keywords
- filter
- valve
- water
- deep
- recoil
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- Expired - Lifetime
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- 238000011001 backwashing Methods 0.000 title claims abstract description 23
- 238000001556 precipitation Methods 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 100
- 238000011010 flushing procedure Methods 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 35
- 239000002351 wastewater Substances 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- 238000012279 drainage procedure Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 241000209094 Oryza Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses a kind of deep-bed filter precipitation position backwashing system, filter tank air water back washing program starts, first pool inner water position is reduced to filter material layer surface set height, carry out air water back washing again, avoid air recoil and air water back flushing process filter tank draining simultaneously, only controlling last single water back flushing process is drainage procedure, thus reduces air water back washing process blower and water pump energy consumption, reduce recoil wastewater flow rate, reduce recoil cost for wastewater treatment.
Description
Technical field
The present invention relates to sewage treatment plant's deep-bed filter or dark bed denitrification filter pool technique, be specifically related to deep-bed filter or dark bed denitrification filter pool air water back washing process control technology.
Background technology
Deep-bed filter or dark bed denitrification filter pool are sewage treatment plant's advanced treatment process, install coarse quartz grain sand filtering material, lower to stream filter type, and employing air water back washing technique is counter cleans filtrate.Air water back washing process comprises: 1) 1-3 minute air recoil process; 2) 5-10 minute air water associating back flushing process; 3) 5-10 minute single water back flushing process.
Air recoil process, washes away filter material surface by air, and suspension is come off; Air water associating back flushing process, larger to the effect of washing by rubbing with the hands of filtrate, draw suspension upwards simultaneously; Single water back flushing process, mainly draws suspension and moves up, and will wash out suspension and filter material layer disengaging.
Air recoil process, the air that first recoils forms gas-bearing formation in water and air distributing system, takes up space, under two kinds of factor actings in conjunction, make filter tank water level rising certain altitude after entering supporting layer and filter material layer; Air water associating back flushing process, pool inner water position constantly raises; Single water back flushing process, plug-flow high concentrtion recoil waste water is up.
The factors such as deep-bed filter and dark bed denitrification filter pool reach setting value filter cycle, the filter tank loss of flood peak reaches setting value start filter tank air water back washing program.Air water back washing process, first closes water inlet and flowing water Valve, open draining valve, air recoil, then air water combines recoil, last single water recoil.Whole process filter tank water level is higher than drainage weir, and air recoil, air water combine recoil and single water three processes that recoil all form draining.Because air water back washing process water level is in a high position always, blower and water pump outlet pressure is higher, and energy consumption is higher; The draining that air recoil and air water back flushing process produce is invalid draining, increases wastewater flow rate and wastewater treatment expense.
Consider to save energy consumption and reduce water consumption, above-mentioned air water back washing technology needs adjustment.
Summary of the invention
The utility model is precipitation position air water back washing technology to deep-bed filter and the original air water back washing technological improvement of dark bed denitrification filter pool, specific as follows:
Air recoil process is measured, the wicking height of filter tank water level by deep-bed filter or dark bed denitrification filter pool pilot test system; Combine the increase height of recoil Time Calculation air water associating back flushing process filter tank water level again according to water backwashing strength and air water, air recoil and air water are combined the water level increase sum caused that recoils and are set as H rice.
Filter tank air water back washing starts, and first closes water intaking valve, treats that pool inner water potential drop is low to moderate below drainage weir H rice, closes outlet valve, open draining valve, first air recoil, then air water combines recoil, last single water recoil, close draining valve, open water intaking valve and outlet valve, filter tank recovers to filter.Whole air water back washing process, air recoil and air water be back flushing process simultaneously, filter tank water level lower than drainage weir height, filter tank not draining; Water back flushing process is only had to carry out draining.
The utility model can bring beneficial effect:
1. precipitation position air water back washing technology, recoil blower and water pump pressure is relatively little, reduces filter tank air water back washing energy consumption.
2. only have the draining of single water back flushing process, wastewater flow rate is little, and waste water dis posal expense is low.
3. filter tank system producing water ratio improves.
Accompanying drawing explanation
Fig. 1 deep-bed filter precipitation position backwashing system structure chart
Fig. 2 deep-bed filter precipitation position backwashing system program flow diagram
Detailed description of the invention
The utility model detailed description of the invention is as follows:
A kind of deep-bed filter precipitation position backwashing system, comprise deep-bed filter 1, drainage weir 3 is provided with in filter tank, water intaking valve 2, draining valve 6, intake valve 7, blower fan 8, outlet valve 9, back-flushing water intaking valve 10, recoil water pump 11 is characterized in that deep-bed filter 1 is provided with liquid level gauge 4 and control system 5, control system 5 and water intaking valve 2, draining valve 6, intake valve 7, blower fan 8, outlet valve 9, back-flushing water intaking valve 10, recoil water pump 11 and liquid level gauge 4 control connection also can realize the control of associated devices, wherein water intaking valve 2 is highly identical with draining valve 6, be positioned at the top of deep-bed filter 1, lower than drainage weir 3 top, outlet valve 9, back-flushing water intaking valve 10, recoil water pump 11 is connected bottom access deep-bed filter 1 filter material layer with water producing pipe, intake valve 7, blower fan 8 is connected with backwash valve bottom access deep-bed filter 1 filter material layer.The filter process, air water back washing process etc. in filter tank control automatically by control system 5.
Deep-bed filter 1 or dark bed denitrification filter pool 1, along with filter course, filter bed inner suspension thing is piled up, the filter bed loss of flood peak increases, when the filter bed loss of flood peak is increased to setting value, or when filter cycle reaches setting cycle, filter tank air water back washing program starts, and now pool inner water position is in high water level 12.Filter tank air water back washing program is: close water intaking valve 2, the low water level 13 of H rice below drainage weir 3 is down to by high water level 12 in pool inner water position to be filtered, close outlet valve 9, open filter tank draining valve 6, start blower fan 8, and open recoil air inlet valve 7, filter tank 1 air recoil 1-3 minute, restart recoil water pump 11, open back-flushing water intaking valve 10, air water recoils 5-10 minute simultaneously; Close blower fan 8 and recoil air inlet valve 7, single water backwash 5-10 minute, finally close recoil water pump 11 and back-flushing water intaking valve 10, close draining valve 6, open outlet valve 9, open water intaking valve 2, filter tank recovers to filter.
Back flushing process, filter tank water level is down to H rice below drainage weir 3, H value is control system 5 parameters input value, its size is determined with back flushing process water level value added sum according to air recoil process filter tank water level value added and air water, guarantee air recoil process and air water back flushing process simultaneously, filter tank 1 not draining, only retains the draining of single water back flushing process.
Claims (1)
1. a deep-bed filter precipitation position backwashing system, comprise deep-bed filter (1), drainage weir (3) is provided with in filter tank, water intaking valve (2), draining valve (6), intake valve (7), blower fan (8), outlet valve (9), back-flushing water intaking valve (10), recoil water pump (11) is characterized in that deep-bed filter (1) is provided with liquid level gauge (4) and control system (5), control system (5) and water intaking valve (2), draining valve (6), intake valve (7), blower fan (8), outlet valve (9), back-flushing water intaking valve (10), recoil water pump (11) and liquid level gauge (4) control connection also can realize the control of associated devices, wherein water intaking valve (2) is highly identical with draining valve (6), be positioned at the top of deep-bed filter (1), lower than drainage weir (3) top, outlet valve (9), back-flushing water intaking valve (10), recoil water pump (11) is connected bottom access deep-bed filter (1) filter material layer with water producing pipe, intake valve (7), blower fan (8) is connected with backwash valve bottom access deep-bed filter (1) filter material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420433778.7U CN204034348U (en) | 2014-08-04 | 2014-08-04 | A kind of deep-bed filter precipitation position backwashing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420433778.7U CN204034348U (en) | 2014-08-04 | 2014-08-04 | A kind of deep-bed filter precipitation position backwashing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204034348U true CN204034348U (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420433778.7U Expired - Lifetime CN204034348U (en) | 2014-08-04 | 2014-08-04 | A kind of deep-bed filter precipitation position backwashing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204034348U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104096390A (en) * | 2014-08-04 | 2014-10-15 | 江苏优联环境发展有限公司 | Water level-lowering back-flushing system with deep-bed filter |
| CN104162297A (en) * | 2014-09-09 | 2014-11-26 | 王枝宝 | Method for regenerating gravel in filter tank of running water plant |
-
2014
- 2014-08-04 CN CN201420433778.7U patent/CN204034348U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104096390A (en) * | 2014-08-04 | 2014-10-15 | 江苏优联环境发展有限公司 | Water level-lowering back-flushing system with deep-bed filter |
| CN104162297A (en) * | 2014-09-09 | 2014-11-26 | 王枝宝 | Method for regenerating gravel in filter tank of running water plant |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141224 |