CN103239908A - Novel water collection and backwashing sand filter - Google Patents
Novel water collection and backwashing sand filter Download PDFInfo
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- CN103239908A CN103239908A CN2012100257011A CN201210025701A CN103239908A CN 103239908 A CN103239908 A CN 103239908A CN 2012100257011 A CN2012100257011 A CN 2012100257011A CN 201210025701 A CN201210025701 A CN 201210025701A CN 103239908 A CN103239908 A CN 103239908A
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- filter
- tank body
- backwashing
- water
- water collection
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Abstract
The invention relates to a novel water collection and backwashing sand filter. The sand filter comprises a tank body, wherein the upper part and the lower part of the tank body are respectively provided with a water inlet, a vent port, a water outlet and an air inlet, the middle part inside the tank body is a filter material layer, a screen plate is arranged inside the filter material layer, the screen plate is provided with a plurality of filter caps and a homogenizing filter material, a collection chamber is arranged below the screen plate, a water collection air distribution pipe is arranged inside the collection chamber, and the water collection air distribution pipe is communicated with the water outlet and the air inlet. The novel water collection and backwashing filter can thoroughly filter the sand and effectively intercept the fine organic particles, and the filtering efficiency is high; thoroughness in backwashing can be realized, the washing water can be saved, and the processing capacity can be increased; and the flow area of the filter cap is large, and the filter cap is anti-aging, has good pressure resistance and long service life, is hardly damaged, is safe and reliable and has low comprehensive cost; and the floor occupied area is small, rapidness in installation can be achieved, the investment can be saved, and convenience for operation and maintenance can be realized; and the tank bodies are connected in parallel for use, so that convenience for backwashing can be achieved.
Description
Technical field
The present invention relates to a kind of sewage filter device, relate in particular to a kind ofly novelly catchment, the backwash sand filter.
Background technology
Sand filter is used in every profession and trade widely as filter plant commonly used.Traditional sand filter can water distribution uniformity in order to prevent that filtrate from entering water distribution system and when flushing, and bed course (supporting layer) is set between filtering layer and water distribution system.Bed course generally adopts natural pebble or rubble, and weight of equipment is heavier.In this external backwash process, traditional sand filter occurs because of the random layer of supporting layer through regular meeting, thereby causes the little filtrate of particle diameter to run off and the effluent quality variation.Third generation sand filter is the shortcoming that overcomes traditional sand filter, has adopted the cut sand filtrate, and the dividing plate between header tank and filtrate is installed plastics clearance type filter, catchments and the backwash water distribution.But the plastics filter is fragile, and the filter cap is loosening easily, and service life is not long, for preventing that filtrate from running material and need make regular check on replacing.Tradition sand filter and three generations's sand filter also backwash occurs through regular meeting and the increase of the backwash frequency thoroughly do not occur, and the backwash water yield is increased greatly.
Summary of the invention
The present invention for overcome the above problems provide a kind of simple in structure, reduce water turbidity, effluent quality height, long service life novelly catchment, the backwash sand filter.
Technical scheme of the present invention is: described sand filter comprises tank body, described tank body upper and lower is respectively equipped with water inlet, exhaust outlet and delivery port, air inlet, the middle part is filter material layer in the described tank body, be furnished with sieve plate in the described filter material layer, described sieve plate is provided with some filter caps and homogeneous filtering material, described sieve plate below is collecting chamber, is furnished with the gas distribution pipe that catchments in the collecting chamber, and the described gas distribution pipe that catchments is connected with delivery port and air inlet.
The present invention filters thoroughly, effectively tackles tiny organic particle, the filter efficiency height; Backwash is thorough, saves rinse water, increases treating capacity; Filter cap circulation area is big, anti-aging, good pressure-resistant performance, long service life, can damage hardly, and safe and reliable, integrated cost is low; Floor space is few, installation is fast, reduced investment, operating maintenance convenient; Tank body is in parallel to be used, and backwash is convenient.
Description of drawings
Fig. 1 is structural representation of the present invention.
1 is water inlet among the figure, the 2nd, and exhaust outlet, the 3rd, tank body, the 4th, filter material layer, the 5th, filter cap, the 6th, sieve plate, the 7th, collecting chamber, the 8th, the gas distribution pipe that catchments, the 9th, air inlet, the 10th, delivery port.
The specific embodiment
Novelly catchment, the backwash sand filter, described sand filter comprises tank body 3, described tank body 3 upper and lowers are respectively equipped with water inlet 1, exhaust outlet 2 and delivery port 10, air inlet 9, the middle part is filter material layer 4 in the described tank body 3, be furnished with sieve plate 6 in the described filter material layer 4, described sieve plate 6 is provided with some stainless steel filter caps 5 and homogeneous filtering material, and described sieve plate 6 belows are collecting chamber 7, be furnished with the gas distribution pipe 8 that catchments in the collecting chamber 7, the described gas distribution pipe 8 that catchments is connected with delivery port 10 and air inlet 9.
Filter process
Open equipment water inlet 1 valve and exhaust outlet 2 valves, to tank body 3 interior water fillings, when treating that exhaust outlet 2 has water to overflow, close exhaust outlet 2 valves, open delivery port 10 valves, carry out normal filtration.Water inlet is by filter material layer 4, and cap 5 enters the collecting chamber 7 of bottom of the present invention after filtration, and gas distribution pipe 8 is discharged by catchmenting.
The backwash flow process
The end of filtering process is finally determined by the resistance that filters, when water inlet 1 of the present invention, when delivery port 10 pressure differentials reach 0.1Mpa, need carry out backwash, backwash adopts gas to add the mode of water associating backwash, adopt the mode of water behind the first gas, purpose with gas flushing is to be convenient to follow-up water flushing for loosening filter material layer 4, makes the filtrate backwash thorough.
Claims (1)
1. novelly catchment, the backwash sand filter, described sand filter comprises tank body, it is characterized in that: described tank body upper and lower is respectively equipped with water inlet, exhaust outlet and delivery port, air inlet, the middle part is filter material layer in the described tank body, be furnished with sieve plate in the described filter material layer, described sieve plate is provided with some filter caps and homogeneous filtering material, and described sieve plate below is collecting chamber, be furnished with the gas distribution pipe that catchments in the collecting chamber, the described gas distribution pipe that catchments is connected with delivery port and air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100257011A CN103239908A (en) | 2012-02-07 | 2012-02-07 | Novel water collection and backwashing sand filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100257011A CN103239908A (en) | 2012-02-07 | 2012-02-07 | Novel water collection and backwashing sand filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103239908A true CN103239908A (en) | 2013-08-14 |
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ID=48919998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100257011A Pending CN103239908A (en) | 2012-02-07 | 2012-02-07 | Novel water collection and backwashing sand filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103239908A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104162297A (en) * | 2014-09-09 | 2014-11-26 | 王枝宝 | Method for regenerating gravel in filter tank of running water plant |
| CN104436774A (en) * | 2014-12-04 | 2015-03-25 | 山东双轮股份有限公司 | Mechanical filter |
-
2012
- 2012-02-07 CN CN2012100257011A patent/CN103239908A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104162297A (en) * | 2014-09-09 | 2014-11-26 | 王枝宝 | Method for regenerating gravel in filter tank of running water plant |
| CN104436774A (en) * | 2014-12-04 | 2015-03-25 | 山东双轮股份有限公司 | Mechanical filter |
| CN104436774B (en) * | 2014-12-04 | 2015-09-16 | 山东双轮股份有限公司 | Mechanical filter |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130814 |