CN103252132B - A kind of small-sized air-water backwashing filtering ponds - Google Patents
A kind of small-sized air-water backwashing filtering ponds Download PDFInfo
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- CN103252132B CN103252132B CN201310013543.2A CN201310013543A CN103252132B CN 103252132 B CN103252132 B CN 103252132B CN 201310013543 A CN201310013543 A CN 201310013543A CN 103252132 B CN103252132 B CN 103252132B
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Abstract
The present invention discloses a kind of small-sized air-water backwashing filtering ponds, includes a pond body, can be divided into 2 ~ 6 filter grids, and each filter grid filter area is not more than 30m
2; This filter grid is provided with inhalant region, filtering area and water and air distributing district, by the optimal design of the present inventor to filter, can effectively prevent filter from blocking, extend the overhaul period in filter tank widely; Its overhaul period can reach more than 5 years.By the optimal design of the present inventor to each position of body, pond, backwash effect can be improved, save energy and reduce the cost and effectively can prevent filterins media run-off; Owing to cancelling V-type filter tank special water inlet distributing trough, weir plate and V-shaped groove, the form only adopting water inlet manifold to add water inlet pipe distributes former water to each filter grid, substantially can reach the requirement of evenly water inlet, simplify pond body structure; Because backwash water is uniform by Chi Di water and air distributing district, backwash gas is then uniform by the air distribution manifold outside pond, and simplify pond body structure further again, occupation of land is reduced, and cost reduces.
Description
Technical field
The present invention relates to water treatment field technology, refer in particular to a kind of small-sized air-water backwashing filtering ponds.
Background technology
Filter tank is the water treatment facilities that domestic water-supply, industrial water supply, wastewater treatment, environmental project etc. are commonly used, rely on the retaining of filtrate, adsorb, precipitation carries out filtration treatment to water, suspension in the process in water, colloid and some other impurity component are adsorbed by filtrate or gap intercepts removal, and water becomes clean.After a period of time is run in filter tank, the space holding dirt between filtering layer diminishes gradually, the filtered water loss of flood peak becomes large, and filtrate is fewer and feweri, reduces filter effect, or effluent quality is deteriorated, filtration inefficiencies, needs to rinse it, to remove the filth of productive set on filtrate, recover the ability to work of filtrate, ensure the normal operation in filter tank.
Conventional back-flushing method has water douche and combined water and air backwash method, and the effect of combined water and air backwash method is better.But it is higher to there is the power consumption of backwash water consumption, filtrate such as easily to run off at the problem.
Existing V-type filter tank or air-water backwash filter complex structure, operation maintenance require high and civil engineering costs is high, floor space is large; Its backwash technique exists that water consumption is large, equipment investment is large, operating cost is high and the problems such as complicated operation, is difficult to promote to small towns and small-sized industrial and mineral, when for underground water with iron or Industrial Wastewater Treatment, also there is the problems such as conventional filter easily blocks.
Summary of the invention
In view of this, the present invention mainly provides the air-water backwashing filtering ponds that a kind of cost is low, operation maintenance requirement is low, energy-saving and cost-reducing, backwash effect is good.
For achieving the above object, the present invention adopts following technical scheme: a kind of small-sized air-water backwashing filtering ponds, and described pond body can be divided into 2 ~ 6 filter grids, and each filter grid filter area is not more than 30m
2, this filter grid is provided with inhalant region, filtering area and water and air distributing district, and this inhalant region is provided with a water inlet, and each water inlet is connected with a water inlet pipe, and each water inlet pipe is communicated with a water inlet manifold, described water inlet is communicated with inhalant region, and this inhalant region is provided with a backwashing wastewater groove, and this backwashing wastewater trench bottom is provided with a sewage draining exit, and this backwashing wastewater groove and filtering area are separated by a baffle plate, filtering layer is provided with from top to bottom in this filtering area, supporting course and filter plate, this filtering area and water and air distributing district are separated by this filter plate, this filter plate is provided with several filters, the chimney filter that this filter comprises filter cap and is communicated with filter cap, this filter cap periphery is uniformly distributed some time of filtration, the tube wall epimere of this chimney filter is provided with air admission hole, tube wall hypomere is provided with inlet opening, this filter cap to be located in filtering area and to be positioned at below supporting course, this chimney filter stretches in water and air distributing district through filter plate, this air admission hole is close to below filter plate, wash water groove is provided with above described filtering layer, between this wash water groove and filtering layer, there is certain spacing, this wash water groove is communicated with backwashing wastewater groove through baffle plate, the setting height(from bottom) of this wash water groove is lower than the height of baffle plate, side, described water and air distributing district is provided with an air inlet, a delivery port and a backwash water water inlet, this air inlet is connected with a distribution menifold, described delivery port is connected with an outlet pipe, backwash water water inlet connects backwash water pipe, described delivery port is connected with an outlet pipe, backwash water water inlet connects backwash water pipe, and this air distribution manifold is just to the air admission hole of chimney filter epimere, and described air distribution manifold is communicated with an air intake branch.
As a kind of preferred version, described water inlet pipe is provided with a water intaking valve, described backwash water pipe is provided with a backwash water valve, described air distribution manifold is connected with a backwash air valve, described sewage draining exit is connected with a blow-off pipe, and this blow-off pipe is provided with a blowoff valve, and described water intaking valve, backwash water valve, backwash air valve and blowoff valve are Pneumatic butterfly valve or Hand-operated butterfly valve, described outlet pipe is provided with an outlet valve, and this outlet valve is Hand-operated butterfly valve.
As a kind of preferred version, the outlet pipe of each described filter grid is communicated with outfall sewer, and the backwash water pipe of each described filter grid is communicated with backwash house steward.
As a kind of preferred version, described filter time of filtration is slot, and the width of this time of filtration is 0.8mm, length is 16mm; Described filter cap is cylinder, and its diameter is 45mm, and described time of filtration is provided with 13.
As a kind of preferred version, the fabrication and installation debugging of described filter plate is all carried out in strict accordance with the related request in V-type filter tank.
As a kind of preferred version, be disposed with filter beam and filter post bottom described filter plate, this filter beam and filter post are placed in water and air distributing district.
As a kind of preferred version, the spacing between described wash water groove and filtering layer, namely filtering layer top is 0.4 ~ 0.6 meter to the distance on wash water groove groove top.
As a kind of preferred version, described filtering layer is quartz sand or grating quartz sand or biofilter material.
The present invention compared with prior art has obvious advantage and beneficial effect, specific as follows:
1., by the optimal design of the present inventor to filter, can effectively prevent filter from blocking, extend the overhaul period in filter tank widely; Its overhaul period reaches more than 5 years.
2. by the optimal design of the present inventor to each position of body, pond, backwash effect can be improved, save energy and reduce the cost and effectively can prevent filterins media run-off;
3., owing to cancelling V-type filter tank special water inlet distributing trough, weir plate and V-shaped groove, the form only adopting water inlet manifold to add water inlet pipe distributes former water to each filter grid, substantially can reach the requirement of evenly water inlet, simplify pond body structure;
4., because backwash water is uniform by Chi Di water and air distributing district, then by the distribution main--arm--outside pond, menifold is uniform for backwash gas, and pond body structure simplifies, and occupation of land is reduced, and cost reduces;
5. owing to not considering automatic control, its water intaking valve, backwash water valve, backwash air valve and draining valve all adopt Pneumatic butterfly valve, also Hand-operated butterfly valve can be used when limited fund, outlet valve then adopts Hand-operated butterfly valve, saves expensive differential manometer, ultrasonic water level gauge and automatic control system.
Accompanying drawing explanation
Fig. 1 is the front view in filter tank in the embodiment of the present invention;
Fig. 2 is the profile at A-A place in Fig. 1 of the present invention;
Fig. 3 is the front view of filter in the embodiment of the present invention;
Fig. 4 is the profile at B-B place in Fig. 3 in the embodiment of the present invention.
Accompanying drawing illustrates:
10, inhalant region
11, water inlet 12, water inlet pipe
121, water intaking valve 13, water inlet manifold
14, backwashing wastewater groove 141, sewage draining exit
15, baffle plate 16, wash water groove
17, blow-off pipe 171, blowoff valve
20, filtering area
21, filtering layer 22, supporting course
23, filter plate 24, filter
241, filter cap 242, chimney filter
243, time of filtration 244, air admission hole
245, inlet opening 25, filter beam
26, post is filtered
30, water and air distributing district
31, air inlet 32, delivery port
33, recoil water inlet 34, distribution menifold
341, backwash air valve 35, outlet pipe
36, backwash water pipe
361, backwash water valve 37, inlet manifold
38, outfall sewer 39, backwash house steward
W: width
L: length
D: diameter.
Detailed description of the invention
Please refer to shown in Fig. 1 to Fig. 4, which show the concrete structure of the preferred embodiment of the present invention, a kind of small-sized air-water backwashing filtering ponds, include a pond body, and described pond body can be divided into 2 ~ 6 filter grids, and each filter grid filter area is not more than 30m
2.
This filter grid is provided with inhalant region 10, filtering area 20 and water and air distributing district 30; Each filter grid is provided with a water inlet 11, and each water inlet 11 is connected with a water inlet pipe 12, and each water inlet pipe 12 is communicated with a water inlet manifold 13; Described water inlet 11 is communicated with inhalant region 10.
This inhalant region 10 is provided with a backwashing wastewater groove 14, is provided with a sewage draining exit 141 bottom this backwashing wastewater groove 14, and this backwashing wastewater groove 14 is separated by a baffle plate 15 with filtering area 20; A filtering layer 21, supporting course 22 and filter plate 23 is provided with from top to bottom in this filtering area 20, this filtering area 20 and water and air distributing district 30 are separated by this filter plate 23, this filter plate 23 is provided with several filters 24, the chimney filter 242 that this filter 24 comprises filter cap 241 and is communicated with filter cap 241, this filter cap 241 periphery is uniformly distributed some time of filtration 243, described time of filtration 243 is slot, and the width W of this time of filtration 243 is 0.8mm, length L is 16mm; Described filter cap 241 is cylinder, and its diameter D is 45mm, and described time of filtration 243 is provided with 13.The tube wall epimere of this chimney filter 242 is provided with air admission hole 244, tube wall hypomere is provided with inlet opening 245, this filter cap 241 to be located in filtering area 20 and to be positioned at below supporting course 22, this chimney filter 242 stretches in water and air distributing district 30 through filter plate 23, this air admission hole 244 is close to below filter plate 23, is provided with wash water groove 16 above described filtering layer 21, has certain spacing between this wash water groove 16 and filtering layer 21, spacing between described wash water groove and filtering layer, namely filtering layer top is 0.4 ~ 0.6 meter to the distance on wash water groove groove top.This wash water groove 16 is communicated with backwashing wastewater groove 14 through baffle plate 15, and the setting height(from bottom) of this wash water groove 16 is lower than the height of baffle plate 15; Be disposed with filter beam 25 and filter post 26 bottom described filter plate 23, this filter beam 25 and filter post 26 are placed in water and air distributing district 30; Described filtering layer 21 can be quartz sand or grating quartz sand or biofilter material.
This side, water and air distributing district 30 is provided with an air inlet 31, one delivery port 32 and a recoil water inlet 33, this air inlet 31 is connected with a distribution menifold 34, described delivery port 32 is connected with an outlet pipe 35, this recoil water inlet 33 connects backwash water pipe 36, this air distribution manifold 34 is just to the air admission hole 244 of chimney filter 242 epimere, and each air distribution manifold 34 described is communicated with an inlet manifold 37.Each outlet pipe 35 described is communicated with outfall sewer 38, and each backwash water pipe 36 described is communicated with backwash house steward 39.
This water inlet pipe 12 is provided with a water intaking valve 121, described backwash water pipe 36 is provided with a backwash water valve 361, described air distribution manifold 34 is connected with a backwash air valve 341, described sewage draining exit 141 is connected with a blow-off pipe 17, this blow-off pipe 17 is provided with a blowoff valve 171, described water intaking valve 121, backwash water valve 361, backwash air valve 341 and blowoff valve 171 are Pneumatic butterfly valve or Hand-operated butterfly valve, described outlet pipe 35 is provided with an outlet valve (accompanying drawing is without display), and this outlet valve is Hand-operated butterfly valve.
Consider condition and the feature of small towns and small-sized industrial and mining enterprises, this backwash filter tank, to V-type filter tank and conventional air-water backwash filter under the principle retaining basic function and advantage, structure and equipment are simplified; Adopt the special anti-blocking filter head of the present inventor's design, thus this filter is not easily blocked, improve backwash effect, energy-saving and cost-reducing; Save capital cost and floor space, reduce filter tank operation maintenance requirement, construction management is also very convenient.
Design focal point of the present invention is:
1., by the optimal design of the present inventor to filter, can effectively prevent filter from blocking, extend the overhaul period in filter tank widely; Its overhaul period can reach more than 5 years.
2. by the optimal design of the present inventor to each position of body, pond, to the optimal design of air water back washing washing method, backwash effect can be improved, save energy and reduce the cost and effectively can prevent filterins media run-off;
3., owing to cancelling V-type filter tank special water inlet distributing trough, weir plate and V-shaped groove, only adopting water inlet manifold--the form of water inlet pipe distributes former water to each filter grid, simplifies pond body structure, substantially can reach again the requirement of evenly water inlet;
4., because backwash water is uniform by Chi Di water and air distributing district, backwash gas is then uniform by the air distribution manifold outside pond, and pond body structure simplifies, and occupation of land is reduced, and cost reduces;
5. owing to not considering automatic control, its water intaking valve, backwash water valve, backwash air valve and draining valve all adopt Pneumatic butterfly valve, also Hand-operated butterfly valve can be used when limited fund, outlet valve then adopts Hand-operated butterfly valve, saves expensive differential manometer, ultrasonic water level gauge and automatic control system.
The above, it is only preferred embodiment of the present invention, not technical scope of the present invention is imposed any restrictions, thus every according to technical spirit of the present invention to any trickle amendment made for any of the above embodiments, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (7)
1. small-sized air-water backwashing filtering ponds, include a pond body, it is characterized in that: described pond body can be divided into 2 ~ 6 filter grids, and each filter grid filter area is not more than 30m
2, this filter grid is provided with inhalant region, filtering area and water and air distributing district, and this inhalant region is provided with a water inlet, and each water inlet is connected with a water inlet pipe, and each water inlet pipe is communicated with a water inlet manifold; Described water inlet is communicated with inhalant region, and this inhalant region is provided with a backwashing wastewater groove, and this backwashing wastewater trench bottom is provided with a sewage draining exit, and this backwashing wastewater groove and filtering area are separated by a baffle plate; A filtering layer, supporting course and filter plate is provided with from top to bottom in this filtering area, this filtering area and water and air distributing district are separated by this filter plate, this filter plate is provided with several filters, the chimney filter that this filter comprises filter cap and is communicated with filter cap, this filter cap periphery is uniformly distributed some time of filtration, the tube wall epimere of this chimney filter is provided with air admission hole, tube wall hypomere is provided with inlet opening, this filter cap to be located in filtering area and to be positioned at below supporting course, this chimney filter stretches in water and air distributing district through filter plate, and this air admission hole is close to below filter plate; Be provided with wash water groove above described filtering layer, have certain spacing between this wash water groove and filtering layer, this wash water groove is communicated with backwashing wastewater groove through baffle plate, and the setting height(from bottom) of this wash water groove is lower than the height of baffle plate; Side, described water and air distributing district is provided with an air inlet, a delivery port and a backwash water water inlet, this air inlet is connected with a distribution menifold, described delivery port is connected with an outlet pipe, backwash water water inlet connects backwash water pipe, this air distribution manifold is just to the air admission hole of chimney filter epimere, and described distribution menifold is communicated with an air intake branch.
2. a kind of small-sized air-water backwashing filtering ponds according to claim 1, it is characterized in that: described water inlet pipe is provided with a water intaking valve, described backwash water pipe is provided with a backwash water valve, described air distribution manifold is connected with a backwash air valve, described sewage draining exit is connected with a blow-off pipe, this blow-off pipe is provided with a blowoff valve, described water intaking valve, backwash water valve, backwash air valve and blowoff valve are Pneumatic butterfly valve or Hand-operated butterfly valve, described outlet pipe is provided with an outlet valve, and this outlet valve is Hand-operated butterfly valve.
3. a kind of small-sized air-water backwashing filtering ponds according to claim 1, it is characterized in that: the outlet pipe of each described filter grid is communicated with outfall sewer, the backwash water pipe of each described filter grid is communicated with backwash house steward.
4. a kind of small-sized air-water backwashing filtering ponds according to claim 1, is characterized in that: described time of filtration is slot, the width of this time of filtration are 0.8mm, length is 16mm; Described filter cap is cylinder, and its diameter is 45mm, and described time of filtration is provided with 13.
5. a kind of small-sized air-water backwashing filtering ponds according to claim 1, is characterized in that: be disposed with filter beam and filter post bottom described filter plate, and this filter beam and filter post are placed in water and air distributing district.
6. a kind of small-sized air-water backwashing filtering ponds according to claim 1, it is characterized in that: the spacing between described wash water groove and filtering layer, namely filtering layer top is 0.4 ~ 0.6 meter to the distance on wash water groove groove top.
7. a kind of small-sized air-water backwashing filtering ponds according to claim 1, is characterized in that: described filtering layer is quartz sand or grating quartz sand or biofilter material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310013543.2A CN103252132B (en) | 2013-01-15 | 2013-01-15 | A kind of small-sized air-water backwashing filtering ponds |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310013543.2A CN103252132B (en) | 2013-01-15 | 2013-01-15 | A kind of small-sized air-water backwashing filtering ponds |
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| CN103252132A CN103252132A (en) | 2013-08-21 |
| CN103252132B true CN103252132B (en) | 2015-08-19 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2225290Y (en) * | 1995-09-06 | 1996-04-24 | 珠海市供水总公司 | High speed filter tank |
| CN102500145A (en) * | 2011-11-07 | 2012-06-20 | 深圳市清泉水业股份有限公司 | Back-flushing system and method for up-flow filter tank |
| CN203139789U (en) * | 2013-01-15 | 2013-08-21 | 东莞市科达环保工程有限公司 | Novel miniature air-water backwash filtering basin |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS572008Y2 (en) * | 1974-09-12 | 1982-01-13 |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2225290Y (en) * | 1995-09-06 | 1996-04-24 | 珠海市供水总公司 | High speed filter tank |
| CN102500145A (en) * | 2011-11-07 | 2012-06-20 | 深圳市清泉水业股份有限公司 | Back-flushing system and method for up-flow filter tank |
| CN203139789U (en) * | 2013-01-15 | 2013-08-21 | 东莞市科达环保工程有限公司 | Novel miniature air-water backwash filtering basin |
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| CN103252132A (en) | 2013-08-21 |
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