CN101987260A - Emptying or water filling cleaning method for filter material layer of filter - Google Patents
Emptying or water filling cleaning method for filter material layer of filter Download PDFInfo
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- CN101987260A CN101987260A CN200910207367XA CN200910207367A CN101987260A CN 101987260 A CN101987260 A CN 101987260A CN 200910207367X A CN200910207367X A CN 200910207367XA CN 200910207367 A CN200910207367 A CN 200910207367A CN 101987260 A CN101987260 A CN 101987260A
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Abstract
The invention provides a cleaning method for a filter material layer of a filter. When the filter is cleaned, water in the filter material layer of the filter is emptied, and cleaning air passes through the filter material layer from bottom to top during the emptying process. Cleaning water is filled into the filter material layer which empties the water from the bottom to the top and flows through the filter material layer from the bottom to the top, and the cleaning air passes through the filter material layer from the bottom to the top during the water filling process. The cleaning method can fully utilize liquid level in severe disturbance to wash out the surface of a filter material, be conductive to loosening the filter material layer and uniformly distributing the cleaning water and the cleaning air, avoid the problem that the more dirt retention the region, the less the cleaning water and the cleaning air flow by, and effectively prevent the hardening of the filter material.
Description
Technical field
The present invention relates to the cleaning method of filter precoat.
Background technology
Filter bed filter, as quartz sand filtration device, fiber bundle filter, fibrous nodules (or comet filtrate) filter, biofilter, filter cloth filter, filter etc., cleaning method commonly used is the air-water combined cleaning.This method is that rinse water and scavenging air carry out the air-water combined cleaning by filter material layer from bottom to top.The weak point that this method exists is few more that the many more regional rinse water of rinse water and scavenging air maldistribution, especially deposition and scavenging air flow through on the filter material layer cross section, and this zone deposition meeting more and more seriously causes filtrate to harden.
Summary of the invention
The cleaning method that the purpose of this invention is to provide a kind of filter precoat.
Be used to realize a kind of filter precoat cleaning method of the object of the invention, it is characterized in that filter water in the emptying filter precoat when cleaning, this evacuation procedure scavenging air passes through filter material layer from bottom to top.This emptying cleaning process is carried out once at least.
Be used to realize the another kind of filter precoat cleaning method of the object of the invention, it is characterized in that filter water in elder generation's emptying filter precoat when cleaning, rinse water also flows through filter material layer from bottom to top to the filter material layer water-filling from bottom to top again, and this water filling process scavenging air passes through filter material layer from bottom to top.This water-filling cleaning process is carried out once at least.
Be used to realize that the further measure of the object of the invention is: filter is the water in elder generation's emptying filter precoat when cleaning, and this evacuation procedure scavenging air passes through filter material layer from bottom to top; Rinse water also flows through filter material layer from bottom to top to the filter material layer water-filling from bottom to top again, and this water filling process scavenging air passes through filter material layer from bottom to top.This emptying cleaning process and water-filling cleaning process are carried out once at least.
Be used to realize that the further measure of the object of the invention is: rinse water and scavenging air constant flow rate be by filter material layer, or rinse water or scavenging air pulsating flow pass through filter material layer.
Water filling process rinse water or former water to be filtered also can enter from filtering layer top.
The liquid level that cleaning method of the present invention can make full use of violent disturbance washes away filter material surface, also help the uniform distribution of loosening filter material layer and rinse water and scavenging air, avoid many more regional rinse water of deposition and scavenging air to flow through few more problem, can prevent effectively that filtrate from hardening.
The said filter of the present invention comprises fiber bundle filter, fibrous nodules (or comet filtrate) filter, the quartz sand filtration device, other granular filter material filter is (as the haydite filter, the shell filter, cobble filter etc.), charcoal filter, ion-exchanger, the doughnut film filter, the flat sheet membrane filter, biofilter (filter of carrying microbial film on the filtrate), filter cloth filter, various filler laminar equipment such as all various types of filters such as filter and catalytic tower.The said filter of the present invention comprises pressure filter and gravity one.
Method of the present invention also can be used for the cleaning of other fluid filter of wet goods.
Claims (4)
1. be used to realize a kind of filter precoat cleaning method of the object of the invention, it is characterized in that filter water in the emptying filter precoat when cleaning, this evacuation procedure scavenging air passes through filter material layer from bottom to top.This emptying cleaning process is carried out once at least.
2. be used to realize the another kind of filter precoat cleaning method of the object of the invention, it is characterized in that filter water in elder generation's emptying filter precoat when cleaning, rinse water also flows through filter material layer from bottom to top to the filter material layer water-filling from bottom to top again, and this water filling process scavenging air passes through filter material layer from bottom to top.This water-filling cleaning process is carried out once at least.
3. according to claim 1,2 said filter precoat cleaning methods, filter is the water in elder generation's emptying filter precoat when cleaning, and this evacuation procedure scavenging air passes through filter material layer from bottom to top; Rinse water also flows through filter material layer from bottom to top to the filter material layer water-filling from bottom to top again, and this water filling process scavenging air passes through filter material layer from bottom to top.This emptying cleaning process and water-filling cleaning process are carried out once at least.
4. according to claim 1,2,3 said filter precoat cleaning methods, rinse water and scavenging air constant flow rate be by filter material layer, or rinse water or scavenging air pulsating flow pass through filter material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910207367XA CN101987260A (en) | 2009-08-06 | 2009-10-13 | Emptying or water filling cleaning method for filter material layer of filter |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910055944 | 2009-08-06 | ||
| CN200910055944.8 | 2009-08-06 | ||
| CN200910207367XA CN101987260A (en) | 2009-08-06 | 2009-10-13 | Emptying or water filling cleaning method for filter material layer of filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101987260A true CN101987260A (en) | 2011-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910207367XA Pending CN101987260A (en) | 2009-08-06 | 2009-10-13 | Emptying or water filling cleaning method for filter material layer of filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101987260A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104208928A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气集团公司 | Pulse backwashing deep bed filter device and method |
-
2009
- 2009-10-13 CN CN200910207367XA patent/CN101987260A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104208928A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气集团公司 | Pulse backwashing deep bed filter device and method |
| CN104208928B (en) * | 2013-06-05 | 2015-12-23 | 中国石油天然气集团公司 | A kind of pulse backwashing deep-bed filtration device and method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110323 |