CN204745768U - Press structure of cap on continuous flow sand filter equipment - Google Patents
Press structure of cap on continuous flow sand filter equipment Download PDFInfo
- Publication number
- CN204745768U CN204745768U CN201520379997.6U CN201520379997U CN204745768U CN 204745768 U CN204745768 U CN 204745768U CN 201520379997 U CN201520379997 U CN 201520379997U CN 204745768 U CN204745768 U CN 204745768U
- Authority
- CN
- China
- Prior art keywords
- sand
- cap
- upper pressing
- filter
- pressing cap
- 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
Abstract
The utility model discloses a press structure of cap on continuous flow sand filter equipment, press the cap on the washed -out sand ware, on press the interior top surface of cap to be the taper surface. On press that the taper surface of top surface is the wave face in the cap. The utility model has the advantages of it is effectual to get rid of filter sand surface pollution thing.
Description
Technical field
The utility model relates to a kind of filtering technique, particularly a kind of structure of continuous-flow sand filter upper pressing cap.
Background technology
Continuous-flow sand filter is widely used in sewage treatment industry, and the sewage be mainly used to early stage processed makes further purified treatment to reach the standard of discharge.Filter sand in existing continuous-flow sand filter is after filter sewage, the pollutant of its surface adhesion needs be fixed on the inner top surface of upper pressing cap on sand-washing device top through dirty sand and sewage high velocity impact, through the collision of dirty sand and upper pressing cap inner top surface, the pollutant be adsorbed on filter sand surface is separated, thus recover the strainability of filter sand, but find that the clean-up capability of filter sand is undesirable in producing, need often to change filter sand, affect normal sewage disposal operation.
Summary of the invention
The utility model object is to provide a kind of structure removing the effective a kind of continuous-flow sand filter upper pressing cap of filter sand surface contamination.
The technical solution of the utility model is, a kind of structure of continuous-flow sand filter upper pressing cap, comprises the upper pressing cap of sand-washing device, it is characterized in that: the inner top surface of described upper pressing cap is taper surface.The taper surface of described upper pressing cap inner top surface is waveform face.
The utility model has compared with the prior art removes the effective advantage of filter sand surface contaminant.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention:
Poor and the life-span shorter analysis of causes of existing equipment filter sand strainability, wherein upper pressing cap 4 structure of sand-washing device is reasonable not, filter sand and sewage fall with upper pressing cap end face collision rift upwards to spray at a high speed, the separated from contaminants of during collision, sand grain surface adsorbing, filter sand is made to recover strainability, because upper pressing cap end face is plane, the time of contact of sand and end face is shorter, and the pollutant effect be thus separated on sand grains surface is poor.For this reason, taper surface is changed into the inner top surface of upper pressing cap, increases contact area, conical surface is made wavy surfaces, its surface is increased further.Achieve satisfied effect through experiment, filter sand improves nearly two times service life.To the sand extraction tube 1 in existing filter, water distributor, wash each parts such as husky device 3 and do not change.
Claims (2)
1. a structure for continuous-flow sand filter upper pressing cap, comprises the upper pressing cap of sand-washing device, it is characterized in that: the inner top surface of described upper pressing cap is taper surface.
2. the structure of a kind of continuous-flow sand filter upper pressing cap as claimed in claim 1, is characterized in that: the taper surface of described upper pressing cap inner top surface is waveform face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520379997.6U CN204745768U (en) | 2015-06-05 | 2015-06-05 | Press structure of cap on continuous flow sand filter equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520379997.6U CN204745768U (en) | 2015-06-05 | 2015-06-05 | Press structure of cap on continuous flow sand filter equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204745768U true CN204745768U (en) | 2015-11-11 |
Family
ID=54460529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520379997.6U Expired - Fee Related CN204745768U (en) | 2015-06-05 | 2015-06-05 | Press structure of cap on continuous flow sand filter equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204745768U (en) |
-
2015
- 2015-06-05 CN CN201520379997.6U patent/CN204745768U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Press structure of cap on continuous flow sand filter equipment Effective date of registration: 20170925 Granted publication date: 20151111 Pledgee: Shanghai Maple Equity Investment Fund Management Co., Ltd. Pledgor: HENAN BAIHUI ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Registration number: 2017310000053 |
|
| 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: 20151111 Termination date: 20190605 |