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Pressure type gas-water mutual flushing filter tank and filtration method

A filtration method and pressure technology, applied in gravity filters, chemical instruments and methods, filtration and separation, etc., can solve the problem of filtration facilities occupying a lot of space, and achieve the effect of reducing occupied space and height

Inactive Publication Date: 2011-12-07
CHINA COAL TECH & ENG GRP HANGZHOU ENVIRONMENTAL PROTECTION INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the setting of existing filtering facilities all needs to take up a large space

Method used

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  • Pressure type gas-water mutual flushing filter tank and filtration method
  • Pressure type gas-water mutual flushing filter tank and filtration method
  • Pressure type gas-water mutual flushing filter tank and filtration method

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Embodiment Construction

[0032] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0033] The embodiment of the present invention provides a pressurized air-water mutual washing filter, which can be used in water supply treatment, wastewater treatment and sewage treatment, including two stages of filtration and backwashing.

[0034] In the filtration stage, the water to be filtered enters the filter grid from top to b...

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Abstract

The invention discloses a pressure-type air-water mutual flushing filter tank and a filtering method. The filter tank includes a tank body, a water inlet branch pipe, an air inlet branch pipe, a first water main pipe, a second water main pipe and an on-off control device. It includes at least two closed filter grids, each filter grid is provided with a filter material layer, and each filter grid is respectively arranged with a first water outlet and a second water outlet; the water inlet branch pipe is connected with each first water outlet for Import the water to be filtered; the first water outlet of each filter grid is connected with the first water main pipe through the first branch pipe; the second water outlet of each filter grid is connected with the second water main pipe through the second branch pipe; each second branch pipe is provided with inlet The air port is connected with each air inlet through the air intake branch pipe; the on-off control device is used to respectively control the on-off of each water inlet branch pipe, each first branch pipe, each second branch pipe and the second water main pipe. The filter tank reduces the overall height of the tank body and reduces the occupied space of the filter tank.

Description

Technical field [0001] The invention relates to water treatment technology, in particular to a pressure-type air-water mutual washing filter and a filtering method. Background technique [0002] At present, the commonly used filtering facilities for domestic surface water treatment include siphon filter, mobile hood filter, V-type filter, fast filter, valveless filter, etc. All kinds of filters can effectively reduce suspended solids in the water. Among them, the siphon filter, the mobile hood filter and the V-type filter are mainly used in large-scale water purification plants, and the installation of the filter requires a lot of space. [0003] Fast filter and valveless filter are widely used in coal mine water surface treatment system. Fast filter adopts high resistance water distribution system, and must be equipped with special washing equipment or facilities to ensure the backwash effect of the filter. Valveless filter Using a hydraulic siphon recoil system, the height of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D24/12B01D24/46
Inventor 周如禄
Owner CHINA COAL TECH & ENG GRP HANGZHOU ENVIRONMENTAL PROTECTION INST
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