Multilayer backwashing filter and method

一种过滤器、过滤出的技术，应用在化学仪器和方法、过滤分离、分离方法等方向，能够解决过滤精度和效果不够理想、滤料或滤网易堵塞、冲洗质量差等问题，达到优异反冲洗效果、高质量过滤效果、提高过滤效果的效果

Inactive Publication Date: 2019-12-20
张玉华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The filter material or filter screen of the existing filter has single or difficult-to-clean defects in design, which seriously affects the filtration quality and operating efficiency, causing the filter material or filter screen to be easily blocked and needs to be replaced frequently, which not only increases labor maintenance costs, but also affects The service life of the filter is shortened, and the replacement operation of the filter material layer is very inconvenient
For example, in the traditional mechanical filter, in order to ensure its filtering effect, various filter materials are laminated and combined together. The thickness of the filter layer is large, and backwashing has almost no effect; another example is the popular shallow sand filter in recent years. The filter material is single, Its filtration accuracy and effect are not ideal. At the same time, because the entire section can only be washed slowly, the washing quality is poor, resulting in poor use of the filter layer. Therefore, in order to reduce the frequent replacement of the filter layer, a larger cross-section is often selected, resulting in filtration. The size and footprint of the filter become larger, which is not conducive to the use of filters

Method used

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Examples

Experimental program
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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] A multi-layer recoil filter such as figure 1 and figure 2 As shown, it includes a tank body 1, which also includes a bottom cavity 2, a water inlet pipe 3, a recoil bypass channel 5, a filter outlet pipe 7, a recoil outlet pipe 13, an air inlet pipe 17 and a rotating motor 16;

[0029] Among them, such as image 3 As shown, the inside of the tank body 1 is arranged as an upper water chamber 101, a middle water chamber 102, and a lower water chamber 103 from top to bottom; Sewage is finely filtered; a coarse filter material layer 105 is arranged between the reclaimed water chamber 102 and the lower water chamber 103, and the lower end of the coarse filter material layer 105 is provided with a composite mesh plate 106, which is combined by the composite mesh plate 106 and the coarse filter material layer 105. Cooperate, to co...

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PUM

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Abstract

The invention discloses a multilayer backwashing filter, and a method. The multilayer backwashing filter comprises a tank body; an upper water chamber, a middle water chamber and a lower water chamberare arranged in the tank body from top to bottom; filter material layers are respectively arranged between the upper water chamber and the middle water chamber, and between the middle water chamber and the lower water chamber; the lower water chamber is communicated with a bottom cavity; the bottom cavity is communicated with a water inlet pipe; the upper water chamber is communicated with a filtered water outlet pipe, the filtered water outlet pipe is communicated with a drainage pipe below, and the bottom end of the drainage pipe is communicated with a backwash water outlet pipe which is communicated with the bottom cavity; a rotating motor is arranged at the top of the tank body and is fixedly connected with a hollow rotating shaft, and the hollow rotating shaft is communicated with awater sprayer; the bottom end of the hollow rotating shaft is located in a positioning sleeve which is fixedly connected with an elbow, and the elbow is communicated with a backwash water inlet pipe.The method comprises a sewage filtering method, a method for backwashing using clear water, and a backwashing method using sewage. According to the multilayer backwashing filter, layered and spaced arrangement of filter materials is adopted, so that the filtering effect is good, and at the same time, backwashing function is achieved, and the cleaning effect is better.

Description

technical field [0001] The invention relates to a filter and a method, in particular to a multi-layer recoil filter and a method. Background technique [0002] The filter material or filter screen of the existing filter has single or difficult-to-clean defects in design, which seriously affects the filtration quality and operating efficiency, causing the filter material or filter screen to be easily blocked and needs to be replaced frequently, which not only increases labor maintenance costs, but also affects The service life of the filter is shortened, and the replacement operation of the filter material layer is very inconvenient. For example, in the traditional mechanical filter, in order to ensure its filtering effect, various filter materials are laminated and combined together. The thickness of the filter layer is large, and backwashing has almost no effect; another example is the popular shallow sand filter in recent years. The filter material is single, Its filtrati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D36/02B01D35/16
CPCB01D36/02B01D35/16
Inventor 张玉华
Owner 张玉华
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