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Fluctuation cleaning method of filter precoat level

A filter, filter material layer technology, applied in the direction of gravity filter, chemical instrument and method, loose filter material filter, etc., to achieve the effect of thorough cleaning

Active Publication Date: 2011-05-18
SHANGHAI FANQING ENVIRONMENT ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the cleaning effect of the filter material is often not ideal. Over time, the filter material layer will accumulate mud and cause serious compaction.

Method used

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  • Fluctuation cleaning method of filter precoat level
  • Fluctuation cleaning method of filter precoat level
  • Fluctuation cleaning method of filter precoat level

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0012] Figure 1 Schematic diagram of liquid level fluctuation cleaning of fiber bundle filter

[0013] Figure 2 Schematic diagram of fiber ball (or comet filter material) filter liquid level fluctuation cleaning

[0014] Figure 3 Schematic diagram of liquid level fluctuation cleaning of granular filter material filter

[0015] Figure 1 shows the cleaning process of the fiber bundle filter material layer 5 with liquid level fluctuations. Cleaning water enters the filter from the lower port 2 of the filter, flows from bottom to top in the fiber bundle filter material layer 5, the liquid surface 4 advances from bottom to top, and air enters from the intake pipe 7 arranged at the bottom of the filter and then passes through the The distribution of the air device 8 produces a large number of air bubbles 6, and the air bubbles 6 enter the fiber bundle filter material lay...

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Abstract

The invention provides a method which leads liquid surface, from top to bottom or from bottom to top, to sweep through a filter material layer when gas-water composite washing is used, thus leading mud adsorbed on the surface of the filter material to be thoroughly peeled off and washed away and drained out of a filter by cleaning water. The reinforced cleaning method provided by the invention can conveniently and thoroughly clean the filter-bed typed filters.

Description

technical field [0001] The invention relates to the strengthening of the cleaning effect of the filter material layer of the filter. Background technique [0002] For filter bed filters, such as quartz sand filters, fiber bundle filters, fiber ball (or comet filter material) filters, etc., the commonly used cleaning method is combined air-water cleaning. This method is to completely submerge the filter material layer in water, and use air scrubbing, water backwashing or air-water washing. The disadvantage of this method is that the cleaning effect of the filter material is often not ideal, and over time the filter material layer will accumulate mud and cause serious compaction. Contents of the invention [0003] The purpose of the present invention is to provide a method for strengthening the cleaning effect of the filter material layer of the filter. [0004] A filter material cleaning method for realizing the purpose of the present invention is characterized in that...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D24/46
Inventor 刘凡清曲晓东
Owner SHANGHAI FANQING ENVIRONMENT ENG