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Self cleaning precise filter and filtering method

A precision filter and self-cleaning technology, which is applied in chemical instruments and methods, fixed filter elements, filter separation, etc., can solve problems such as filter blockage, improve filtration efficiency, reduce floor space and equipment production raw materials The effect of reducing loss and reducing the occurrence of filter clogging

Pending Publication Date: 2018-05-04
成都飞创环保设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome that when the existing filter is faced with a large amount of suspended solids in the sewage or a high filtration precision requirement, the filter screen will be blocked quickly, even if it is designed with a multi-stage filter structure, it cannot solve the problem The primary filter screen is blocked, which seriously affects the technical problem of filtration efficiency. A self-cleaning precision filter and a filtering method are provided. The self-cleaning precision filter is provided with two mutually independent sewage discharge chambers on the primary filter mechanism, which can be sequentially Remove most of the suspended solids and other particulate impurities in the sewage, greatly reduce the occurrence of filter clogging, improve the filtration efficiency, and adapt to the situation where the sewage contains a large amount of suspended solids or requires high filtration accuracy

Method used

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Embodiment 1

[0042] Such as Figure 1 to Figure 3 As shown, the self-cleaning precision filter of this embodiment includes a primary filter mechanism 3, and the primary filter mechanism 3 is provided with a primary sewage discharge chamber 7 and a secondary sewage discharge chamber 6 that are independent of each other, and the primary sewage discharge chamber 7 It communicates with the primary filter cavity 306 of the primary filter mechanism 3, and the secondary sewage discharge cavity 6 is provided with a primary sewage suction mechanism connected with the primary filter cavity 306, and the primary sewage discharge cavity 7 and the secondary sewage discharge cavity 6 are respectively provided with Sewage outlet.

[0043] Further, the primary sewage discharge chamber 7 of this embodiment is arranged above the primary filter chamber 306 . The primary sewage discharge cavity is set above the filter cavity, and the suspended solids in the sewage can be automatically accumulated in the prima...

Embodiment 2

[0048] Such as Figure 1 to Figure 3 As shown, according to the self-cleaning precision filter described in Embodiment 1, the primary filter mechanism 3 of this embodiment includes a primary filter housing 2 and a primary filter screen cylinder 302, and also includes a primary filter that extends into the primary filter screen cylinder 302. The sewage suction pipe shaft 301 is provided with a scraping strip brush 303 for cleaning the filter screen on the primary filter sewage suction pipe shaft 301 .

[0049] After the liquid to be filtered enters the primary filter mechanism, primary filtration is carried out in the primary filter cartridge, and a driving device is arranged on the shaft of the primary filter sewage suction pipe. When the filter screen is blocked by impurities or suspended matter, the primary filter sewage suction pipe is driven by the driving device The shaft rotates to drive the scraping strip brush to scrape off the suspended matter or large particles of im...

Embodiment 3

[0052] Such as Figure 1 to Figure 3 As shown, according to the self-cleaning precision filter described in embodiment 1 or embodiment 2, it also includes a secondary filter mechanism 9 connected in series with the primary filter mechanism 3, and the filtration precision of the primary filter mechanism 3 is equal to that of the secondary filter mechanism 9. The secondary filter mechanism 9 includes a secondary filter screen cylinder 901 arranged in the secondary filter housing 8, and a secondary dirt suction mechanism corresponding to the secondary filter screen cylinder 901, and also includes a The secondary filter chamber 904 of the sewage mechanism communicates with the secondary sewage discharge chamber 10 , and the secondary sewage discharge chamber 10 is provided with a secondary sewage discharge valve 12 .

[0053] The filter of this embodiment is provided with a primary filter mechanism and a secondary filter mechanism connected in series to reduce floor space and equi...

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Abstract

The invention discloses a precise filtering technology. A self cleaning precise filter comprises a primary filtering mechanism, a primary pollution discharging cavity and a secondary pollution discharging cavity, wherein the primary pollution discharging cavity and the secondary pollution discharging cavity are in mutually independent arrangement on the primary filtering mechanism; the primary pollution discharging cavity communicates with a filtering cavity of the primary filtering mechanism; a pollution suction mechanism communicating with the filtering cavity is arranged in the secondary pollution discharging cavity; a pollution discharging outlet is respectively formed in each of the primary pollution discharging cavity and the secondary pollution discharging cavity. The self cleaningprecise filter is provided with two mutually independent pollution discharging cavities on the filtering mechanism, so that most suspension matters and other particle impurities in sewage can be sequentially removed; the occurrence of filtering screen filtering conditions is greatly reduced; the filtering efficiency is improved; the self cleaning precise filter is applicable to the condition of existence of a great number of suspension matters or high filtering precision requirements.

Description

technical field [0001] The invention relates to a precision filtration technology, in particular to a self-cleaning precision filter and a filtration method. Background technique [0002] The filter is a precision device that directly intercepts impurities in water, oil and other media by means of a filter screen. It mainly removes suspended solids and particulate matter in the media to reduce turbidity, purify water and oil, and reduce system dirt, bacteria, algae, Corrosion, etc., to purify water, oil and other media, and to protect the normal operation of other equipment in the system. [0003] The existing filters all adopt single-stage filtration. When the sewage enters the filter for filtration, the inner filter of the filter intercepts the suspended solids in the sewage. When the suspended solids block the filter mesh holes and reach a certain amount, the filter mesh resistance Increase to form a pressure difference; then detect and output the signal through the pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D29/11B01D29/64B01D36/02
CPCB01D29/117B01D29/64B01D29/6415B01D36/02
Inventor 欧培洲张杨
Owner 成都飞创环保设备有限公司
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