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Multi-dimensional space filter material scrubbing method

A technology of multi-dimensional space and filter materials, applied in the direction of separation methods, chemical instruments and methods, loose filter material filters, etc., can solve the problems that can only reach 85%, and achieve the improvement of total filtration capacity and cleaning cleanliness Effect

Inactive Publication Date: 2005-07-20
杨静
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is also the use of regularly sending clean pressure air into the filter to perform "one-way" backflushing to clean the filter material. With this cleaning method, the cleanliness of the filter material can only reach about 85%.

Method used

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  • Multi-dimensional space filter material scrubbing method
  • Multi-dimensional space filter material scrubbing method
  • Multi-dimensional space filter material scrubbing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method for scrubbing filter material in a multi-dimensional space of the present invention is described by using equipment for filling filter material in a filter as shown in the accompanying drawings.

[0032] For the above filters, see figure 1 , in the usual vertical filter structure. There is a cylindrical cylinder body 1 with a radius of R, and the center connecting pipe at the center of the lower head 2 at the lower end of the cylinder body communicates with and connects with the filtered water outlet pipe 3 and the filtered water outlet valve 4 and the pressure gauge P 出 , Scrub water inlet pipe 5 and scrub water inlet valve 6 thereof. The scrubbing water inlet pipe is sent into the upward pressure water flow through the central connecting pipe of the lower head to form an upward scrubbing water flow to the filter material. The center of the upper head 7 center of the upper end of the cylindrical body takes over and is connected with the scrub feed pipe 8 and...

Embodiment 2

[0058] A method for scrubbing filter material in multi-dimensional space of the present invention is illustrated by using the filter used in Example 1. The filter material 25 filled in the cylinder above the filter plate of the filter is manganese sand (mineral particles), ceramsite (mineral miscellaneous) anthracite, activated carbon, and quartz sand.

[0059]Use above-mentioned filter, when filtering well water, mineral water, the manganese sand (mineral particle) filter material in the filter intercepts the ferromanganese ion in well water, mineral water and is polluted. When filtering electroplating wastewater and garbage wastewater, the ceramsite (mineral impurities) filter material in the filter intercepts metal ions in electroplating wastewater and garbage wastewater to make up for pollution. Can adopt embodiment 1 to add activating agent to scrub program and clean. The active agent used in cleaning is dilute acid and dilute lye. Scrubbing process of the present inven...

Embodiment 3

[0072] A method for scrubbing filter material in multi-dimensional space of the present invention is illustrated by using the filter used in Example 1. The filter material 25 filled in the cylinder above the filter plate of the filter is fiber balls, anthracite, and quartz sand.

[0073] Use above-mentioned filter, when filtering sodium chloride and ammonium chloride solution, fiber ball in the filter, quartz sand filter material intercept sodium chloride, the suspension in the ammonium chloride solution and be polluted. Can adopt embodiment 1 to add activating agent to scrub program and clean. The active agent used in cleaning is dilute lye and dilute acid. Scrubbing process of the present invention is as follows:

[0074] First open the scrubbing water inlet valve 6 at the bottom of the filter, send the upward pressure water flow from below the filter material 25 through the scrubbing water inlet pipe 5, and open the scrubbing exhaust valve 11 at the top of the filter. Si...

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Abstract

The invented multi-dimensional space filtering material scrubbing method relates to a method for treating waste water. Said method is characterized by that in the container filled up with filtering material said invention utilizes the scrubbing air flow formed from rotary pressure air flow in the filtering material and upward pressure air flow in the lower portion of filtering material, scrubbing water flow of upward pressure water flow or / and addition of promoting agent to scrub the filtering material. Said invention is applicable to fibre ball filtering material, and also is applicable to filtering materials of quartz sand, active carbon, anthracite coal, manganese sand, magnetite granules and ceramsite, etc.

Description

technical field [0001] The invention relates to a method for treating wastewater, in particular to a method for cleaning filter materials for filters. Background technique [0002] The filter material filled in the filter, such as: quartz sand, activated carbon, manganese sand and fiber filter material. After filtering water containing suspended solids, the suspended solids are trapped on the filter material, and the filtration resistance increases. When the resistance drops to a certain value, the filter capacity and effectiveness decrease, and the filter material must be cleaned to restore the filter capacity and effectiveness. The cleaning method of existing filter material is "one-way" cleaning method. Usually, the clean pressure water is sent to the filter material layer of the filter from the reverse direction of the water inlet of the filter on a regular basis for "one-way" backwashing. The backwashing water volume is 1.5 to 2 times the filtered water volume. Clean ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D24/46
Inventor 杨天寿
Owner 杨静
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