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Series-parallel connection mechanical filter

A mechanical filter and filter technology, which is applied in the direction of filtration separation, filtration circuit, chemical instruments and methods, etc., can solve the problems of mechanical filters not working properly, and achieve small footprint, good filtering effect and long life of filter material long effect

Inactive Publication Date: 2009-12-30
姚军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When operating under turbid water sources, the filter of the existing above-mentioned device will be prematurely saturated by the influence of suspended impurities, and the filter will be backwashed. A clean water source is required to provide backwash water. If there is no clean water around the use environment to provide backwash water, the mechanical filter will not work properly.

Method used

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  • Series-parallel connection mechanical filter

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Embodiment Construction

[0010] Below in conjunction with accompanying drawing and embodiment the present invention is further described:

[0011] Referring to Fig. 1, a series-parallel mechanical filter has a filter A19 and a filter B20, and the filter A19 and the filter B20 are filled with quartz sand and anthracite filter material respectively, and the upper part of the filter A19 and the filter B20 The upper water pipe 21 and the lower water pipe 22 are respectively equipped with the lower part, wherein the valve 7 and the valve 8 are installed in series in the upper water pipe 21, and the valve 10 and the valve 11 are installed in series in the lower water pipe 22. Between the upper water pipe 21 and the lower water pipe 22, a valve 1, a valve 2, a valve 3, and a valve 4 are respectively installed in series through a pipeline 23, and a communication valve is installed between the valve 1 and the valve 2 and between the valve 3 and the valve 4. A pipeline 23; a pressure gauge 24 is installed in th...

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Abstract

The invention relates to a series-parallel connection mechanical filter, adopting single-machine filtration or parallel-machine filtration. When a filter A is influenced by suspended impurities and suffers filter saturation, a serially connected filter B is modified into a pre-filter so as to provide nearly 0.1MPa partially clean backwashing water for the filter A, and after the filter A is cleaned by backwashing, the filter B is serially connected with the filter A so as to carry out serial connection water treatment; compressed air heavy water backwashing and scrubbing and gas-water mixed scrubbing are adopted, gas-water mixing heavy and light backwashing is adopted under low water quality of a water source, a light backwashing air inlet ring canal device is installed on the one-third part of each filter or on 10cm-beneath part of filtration material, so that the compressed air can be added for light air backwashing in the process of continuous water treatment under the circumstance that the filters are seriously influenced by the suspended substances, thereby continuously discharging the superabundant suspended impurities, preventing superabundant fine suspended substances from aggregating on the surface of quartz sand, and enabling the surface of a quartz sand layer to maintain favorable penetrability. The invention is applicable to the treatment of wastewater under any circumstance.

Description

【Technical field】 [0001] The invention belongs to the technical field of water treatment equipment, and relates to a series-parallel mechanical filter which adopts air-water mixing and can provide backwash water between filters. 【Background technique】 [0002] General mechanical filters are also called pressure filters, which are an important part of the pretreatment of pure water preparation and water purification systems. According to different filter media, they are divided into natural quartz sand filters, multi-media filters, and activated carbon filters. And manganese sand filter, etc., can be divided into single-flow filter and double-flow filter according to the water inlet method. The above-mentioned devices can be used in combination or alone according to the actual situation. When operating under turbid water sources, the filter of the existing above-mentioned device will be prematurely saturated by the influence of suspended impurities, and the filter will be bac...

Claims

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Application Information

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IPC IPC(8): B01D36/00
Inventor 姚军
Owner 姚军
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