CN102068836A - Gravity type air scrubbing filter - Google Patents
Gravity type air scrubbing filter Download PDFInfo
- Publication number
- CN102068836A CN102068836A CN2010105863540A CN201010586354A CN102068836A CN 102068836 A CN102068836 A CN 102068836A CN 2010105863540 A CN2010105863540 A CN 2010105863540A CN 201010586354 A CN201010586354 A CN 201010586354A CN 102068836 A CN102068836 A CN 102068836A
- Authority
- CN
- China
- Prior art keywords
- filter
- wash pond
- filtering layer
- filter wash
- type air
- 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.)
- Pending
Links
Images
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The invention relates to a gravity type air scrubbing filter, which comprises a washing filter, and is characterized in that: an inlet hole (1) is formed on the side part of the washing filter; one side of the washing filter is communicated with a reaction settling pool and connected with a drainage ditch (12) by a backwashing drainage port (11); the other side of the washing filter is communicated with a contact mother pipe by a connecting pipe (5); the bottom inside the washing filter is provided with a filtering layer; the filtering layer is connected with a filtering layer drainage port (10); a bottom drainage port (9) on the side of the washing filter is communicated with an exhaust pipe (6); an inlet hole exhaust pipe (7) is arranged on the top of the washing filter; a compressed air inlet (4) is formed on the side of the washing filter; and a water outlet (13) is formed on the lower part of the connecting pipe (5). The gravity type air scrubbing filter has the advantages of simple structure, rational filtering speed, low water head loss and high backwashing capability.
Description
Technical field
The present invention relates to filter, especially a kind of gravity type air bump rinse operation filter tank.
Background technology
[0002] present, the air bump rinse operation filter tank is a kind of novel filter tank that valveless filtering pool is combined with mechanical filter air bump rinse operation function.Can be undertaken by the valveless filtering pool mode during normal operation, when filtering layer pressure reduction or delivery turbidity are higher than setting value, can adopt the air bump rinse operation function, make backwash thorough, to guarantee the water outlet quality.This equipment is the steel sub-assembly, arranges compact, simple to operate, easy to maintenance.Generally below 50NTU, water quality standard for drinking water is satisfied in water outlet to its influent turbidity, extensive use at present.
Summary of the invention
[0007] the technical problem to be solved in the present invention is to provide a kind of simple in structure, filtering velocity is reasonable, the loss of flood peak is few, the backwash ability is strong gravity type air bump rinse operation filter tank.
Technical scheme of the present invention is:
A kind of gravity type air bump rinse operation filter tank, comprise the filter wash pond, described filter wash pond sidepiece is provided with hand-hole, and filter wash pond one side is communicated with the reaction depositing reservoir, and by backwash discharge outlet connection gutter, opposite side is communicated with the female pipe of contact by tube connector, and filter wash pond inner bottom part is provided with filtering layer, and filtering layer connects the filter drain mouth, the bottom discharge mouth of side, filter wash pond is communicated with blast pipe, top, filter wash pond is provided with the hand-hole blast pipe, and side, filter wash pond is provided with compressed air inlet, and the tube connector bottom is provided with delivery port.
Top, described filter wash pond is provided with fence.
Side, described filter wash pond is provided with cat ladder and protects cage.
The invention has the beneficial effects as follows:
The present invention is the synthesis result of the mechanical detention and the surface absorption of filtrate with suspension in the filtration method removal water, and mechanical grading is condensed acting in conjunction with contacting.Because the filtrate in the filtering layer is arranged closelyr than the particle of suspension body refuse in the depositing reservoir.Particulate in the water during sinuate hole, has more collision opportunity with filtering material particle in the filtering layer of flowing through, play effective contact cohesion at filter material surface, makes the particle in the water be easy to condense upon filter material surface, and the contact cohesion is obvious.
Gravity type air bump rinse operation of the present invention in addition filter tank also has advantage simple in structure, that filtering velocity is reasonable, the loss of flood peak is few, the backwash ability is strong.
Description of drawings
Fig. 1 is an overall structure schematic top plan view of the present invention.
Fig. 2 is A among Fig. 1-A direction cross-sectional schematic.
Fig. 3 is B among Fig. 1-B direction cross-sectional schematic.
Among the figure: 1 is that hand-hole, 2 is that cat ladder, 3 is that compressed air inlet, 5 is that tube connector, 6 is that blast pipe, 7 is that hand-hole blast pipe, 8 is that fence, 9 is that bottom discharge mouth, 10 is that filter drain mouth, 11 is that backwash discharge outlet, 12 is that gutter, 13 is a delivery port for protecting cage, 4.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described:
A kind of gravity type air bump rinse operation filter tank, comprise the filter wash pond, filter wash pond sidepiece is provided with hand-hole 1, and filter wash pond one side is communicated with the reaction depositing reservoir, and by backwash discharge outlet 11 connection gutters 12, opposite side is communicated with the female pipe of contact by tube connector 5, and filter wash pond inner bottom part is provided with filtering layer, and filtering layer connects filter drain mouth 10, the bottom discharge mouth 9 of side, filter wash pond is communicated with blast pipe 6, top, filter wash pond is provided with hand-hole blast pipe 7, and side, filter wash pond is provided with compressed air inlet 4, and tube connector 5 bottoms are provided with delivery port 13.Top, filter wash pond is provided with fence 8.Side, filter wash pond is provided with cat ladder 2 and protects cage 3.
Operation principle of the present invention is:
Remove with filtration method that suspension is the synthesis result of the mechanical detention and the surface absorption of filtrate in the water, two effects just arranged in the filter process: mechanical grading with contact cohesion.The mechanical grading effect mainly occurs in the surface of filter material layer.Filtering layer is after backwash, because the sieving actoion of water, short grained filtrate is last, and is oarse-grained down, is arranged in order, so the eyelet minimum that forms between the filtrate of upper strata.When the water that contains suspension entered filtering layer, the filtering layer surface easily was retained down suspension.Moreover, overlap each other between the suspension that is retained down or adsorbing and effect such as bridge formation, the result has formed the additional filter membrane of one deck on the filtering layer surface, and it also can play the mechanical grading effect.The filtration of this filter membrane is called membrane filtration again.In filtration, when the water that has suspension enters filtering layer inside, in fact also filtration is taking place.This just with in the coagulation process uses body refuse similar as contact medium.Because the filtrate in the filtering layer is arranged closelyr than the particle of suspension body refuse in the depositing reservoir.Particulate in the water during sinuate hole, has more collision opportunity with filtering material particle in the filtering layer of flowing through, play effective contact cohesion at filter material surface, makes the particle in the water be easy to condense upon filter material surface, so be called the contact cohesion.
The factor that operation is filtered in influence has a lot, and wherein main factor has filtrate, filtering velocity, the loss of flood peak, flow uniformity and backwash etc.A) filtrate: filtrate is the basic element of character of filter, correctly selects filtrate, determines the grating of filtering material particle size and the height of filter material layer, and is very big to the normal operational relation of filter.Filtrate commonly used has quartz sand, anthracite, marble etc.The condition that should possess as filtrate has: the first, good chemical stability, so as not in filter process filtrate generation dissolution phenomena, influence effluent quality.The second, enough mechanical strengths are in order to avoid fragmentation takes place because of rubbing mutually between particle and colliding in filtrate in backwash process.The 3rd, the suitable granularmetric composition and the suitable shape uniformity.When particle diameter was excessive, tiny suspension can pass filtering layer; When particle diameter was too small, then resistance to water-flow increased, and the loss of flood peak during filtration in the filtering layer also increases.Particle diameter is inhomogeneous, can cause backwash wayward, and shorten filter cycle.During as filtrate, particle diameter is generally 0.5～1.0mm with quartz sand; During as filtrate, particle diameter is generally 1.0～2.0mm with anthracite.Filtrate " up-thin-low-thick " is unfavorable for the operation of filter.The double-layer filter material that can adopt anthracite and quartz sand to form, or add one deck magnetic iron ore etc. again and form three-layer filter.Make filtering material particle and mutual gap be the state of " up big and down small ", thereby improve retaining power and prolong the cycle of operation.The 4th, suitable filtering layer height.The filtering layer height should be obtained according to calculating.The filtering layer height of single layer filter device is generally 700mm.During less than specified altitude, effluent quality will not reach the required value of regulation.B) filtering velocity; Filtering velocity generally refers to current and flows through the speed (generally being meant the slack tank flow velocity) of filtering the cross section.Filtering velocity is crossed can influence slowly and is exerted oneself, and filtering velocity is too fast not only can to make the water outlet deteriorating water quality, and the loss of flood peak is strengthened, and shortened filter cycle.When the water that filters through coagulation and clarifying treatment, the gravity one filtering velocity is generally 8～12m/h; The pressure filter filtering velocity is 15～30m/h.C) loss of flood peak: the pressure of current by filtering layer falls and is called the loss of flood peak.It is to be used for judging the important indicator whether filter lost efficacy.Resistance to water-flow along with filtering layer in service increases gradually, and the loss of flood peak during filtration also just increases thereupon.When the loss of flood peak reaches certain numerical value, just should stop using, carry out backwash.Filter filter or the process of backwash in, require the current of filter course cross section each several part to be evenly distributed, what flow uniformity was had the greatest impact is water distribution system.D) backwash: backwash is exactly that current are from bottom to top by filtering layer, to remove the suspended particle of adhering on the filtering layer, the filter capacity of recovery filtrate.During backwash, filter material layer is in suspended state, and expand into certain height.The ratio of the height that is increased after expanding and the preceding height that expands is called the filtering layer dilation.This is the index that is used for weighing backwash intensity.The backwash water yield that so-called backwash intensity is exactly on the unit are, flows through in the unit interval, unit is L/(sm2).During backwash because water washes away and particle between the effect that runs foul of each other, rub, the pollutant that is bonded on the filtrate just is rinsed, and is taken out of filter by backwash water.When the backwash water outlet became clear, backwash stopped.If want backwash effective, enough backwash intensity and backwash time just must be arranged.The backwash intensity of quartz sand is generally 15～18 L/(sm2), anthracitic backwash intensity is generally 12～15 L/(sm2).In fact the backwash time reflected the size of the backwash water yield.If the backwash water quantity not sufficient does not just reach the requirement of rinsing filtrate well.Each backwash all should be removed the suspended particle of adhering in the filtering layer clean, otherwise filtrate is bondd mutually and lumps, and destroys the normal operation of filter.The purpose of air bump rinse operation is to introduce compressed air by employing filter material layer is broken and stirs, and this stirring can make the mutual friction of filtering material particle phase, and the impurity of holding back in the filter process, be difficult to elute is become flexible from filtrate.The number of times of air bump rinse operation can decide according to the actual conditions of operation, not necessarily at every turn during backwash, all carries out air bump rinse operation.Cleaning is provided by 2 roots blowers of purifying station with compressed air.
Embodiment recited above is described preferred implementation of the present invention; be not that design of the present invention and scope are limited; do not breaking away under the design concept prerequisite of the present invention; common engineers and technicians make technical scheme of the present invention in this area various modification and improvement; all should fall into protection scope of the present invention, the technology contents that the present invention asks for protection all is documented in claims.
Claims (3)
1. gravity type air bump rinse operation filter tank, comprise the filter wash pond, it is characterized in that described filter wash pond sidepiece is provided with hand-hole (1), filter wash pond one side is communicated with the reaction depositing reservoir, and by backwash discharge outlet (11) connection gutter (12), opposite side is communicated with the female pipe of contact by tube connector (5), filter wash pond inner bottom part is provided with filtering layer, filtering layer connects filter drain mouth (10), the bottom discharge mouth (9) of side, filter wash pond is communicated with blast pipe (6), top, filter wash pond is provided with hand-hole blast pipe (7), and side, filter wash pond is provided with compressed air inlet (4), and tube connector (5) bottom is provided with delivery port (13).
2. gravity type air bump rinse operation according to claim 1 filter tank is characterized in that top, described filter wash pond is provided with fence (8).
3. gravity type air bump rinse operation according to claim 1 filter tank is characterized in that side, described filter wash pond is provided with cat ladder (2) and protects cage (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105863540A CN102068836A (en) | 2010-12-14 | 2010-12-14 | Gravity type air scrubbing filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105863540A CN102068836A (en) | 2010-12-14 | 2010-12-14 | Gravity type air scrubbing filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102068836A true CN102068836A (en) | 2011-05-25 |
Family
ID=44027717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105863540A Pending CN102068836A (en) | 2010-12-14 | 2010-12-14 | Gravity type air scrubbing filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102068836A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115364535A (en) * | 2022-08-02 | 2022-11-22 | 华能国际电力股份有限公司上海石洞口第二电厂 | Connection structure for enhancing backwashing strength of air scrubbing filter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4290894A (en) * | 1978-07-19 | 1981-09-22 | Egyesult Muszaki Tomito Es Gepszakmai Ipari Szovetkezet | Process and apparatus for cleaning contaminated water |
| CN1030023A (en) * | 1987-06-23 | 1989-01-04 | 东方冷却塔水处理技术开发中心 | A kind of novel floating-medium filtering chamber |
| US5350505A (en) * | 1993-03-01 | 1994-09-27 | Jet, Inc. | Plastic media filter |
| CN2401252Y (en) * | 1999-10-20 | 2000-10-18 | 刘澄清 | Siphon filter pool |
| CN1962020A (en) * | 2005-11-07 | 2007-05-16 | 上海凡清环境工程有限公司 | Float push-pull type fiber filter |
| CN201912810U (en) * | 2010-12-14 | 2011-08-03 | 无锡市德林环保设备有限公司 | Gravity type air scrubbing filter pool |
-
2010
- 2010-12-14 CN CN2010105863540A patent/CN102068836A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4290894A (en) * | 1978-07-19 | 1981-09-22 | Egyesult Muszaki Tomito Es Gepszakmai Ipari Szovetkezet | Process and apparatus for cleaning contaminated water |
| CN1030023A (en) * | 1987-06-23 | 1989-01-04 | 东方冷却塔水处理技术开发中心 | A kind of novel floating-medium filtering chamber |
| US5350505A (en) * | 1993-03-01 | 1994-09-27 | Jet, Inc. | Plastic media filter |
| CN2401252Y (en) * | 1999-10-20 | 2000-10-18 | 刘澄清 | Siphon filter pool |
| CN1962020A (en) * | 2005-11-07 | 2007-05-16 | 上海凡清环境工程有限公司 | Float push-pull type fiber filter |
| CN201912810U (en) * | 2010-12-14 | 2011-08-03 | 无锡市德林环保设备有限公司 | Gravity type air scrubbing filter pool |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115364535A (en) * | 2022-08-02 | 2022-11-22 | 华能国际电力股份有限公司上海石洞口第二电厂 | Connection structure for enhancing backwashing strength of air scrubbing filter |
| CN115364535B (en) * | 2022-08-02 | 2023-09-05 | 华能国际电力股份有限公司上海石洞口第二电厂 | Connection structure for enhancing backwash strength of air scrubbing filter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102223933B (en) | Water treatment methods | |
| CN200984478Y (en) | Rotational flow type fine purification apparatus | |
| CN104338350B (en) | Automatic continuous cleaning and filtering quicksand device | |
| CN209254242U (en) | A kind of Multistage self-cleaning washes sewage-treatment plant | |
| CN103933764A (en) | Backflush flow guiding non-return filter device | |
| CN201912810U (en) | Gravity type air scrubbing filter pool | |
| CN101121082A (en) | Cone type multi-group filter net water filtering device | |
| CN102068836A (en) | Gravity type air scrubbing filter | |
| JP3652567B2 (en) | Cleaning method for filtration equipment | |
| CN101830533B (en) | V-shaped air floating filter with deslagging function | |
| CN101269279A (en) | Multi-group assembly water filtering apparatus of vertical filter screen | |
| CN201292297Y (en) | Integral water purifier | |
| CN206063884U (en) | A kind of active sand continuous filter | |
| JP3786888B2 (en) | Operation method of manganese contact tower | |
| CN201346413Y (en) | Filtering device | |
| CN206045506U (en) | Auto-flushing defecator | |
| CN211863987U (en) | Industrial pure water preparation system with filtering and purifying functions | |
| CN209721764U (en) | A kind of sanitary sewage multi-stage filtration purifying device | |
| CN203411417U (en) | Backflow continuous type filtering purifier | |
| CN208791313U (en) | A kind of dust-laden sewage disposal system | |
| CN203494236U (en) | Novel high-efficiency active sand filtering system | |
| CN203564831U (en) | Continuous sand filtering device | |
| JP3147720B2 (en) | Cleaning method for down-flow filtration device | |
| CN201793441U (en) | Assembled high efficiency water filter | |
| CN101874949A (en) | Back-washing regeneration method of ceramic membrane method brine refining process filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20110525 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |