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High-viscosity fluid filtering device with backwashing function

A filter device and high-viscosity technology, applied in the direction of filtration and separation, fixed filter elements, chemical instruments and methods, etc., can solve the problems of low pressure resistance, waste of time, high maintenance costs, etc., and achieve long service life and not easy to damage Effect

Active Publication Date: 2011-10-05
盐城海普润科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing filter assembly has large volume, low pressure resistance and high maintenance cost. The filter element cannot be cleaned online. After the filter screen is blocked, it must be removed from the filter for cleaning. The cleaning time is long, which affects the service life of the filter screen and is not conducive to continuous production.
In addition, because the replacement of filter elements will waste time and materials, the frequency of filter element replacement will be minimized during the production process, and some partially clogged filter elements will continue to be used. These partially clogged filter elements will cause large fluctuations in filtration effect and pressure

Method used

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  • High-viscosity fluid filtering device with backwashing function
  • High-viscosity fluid filtering device with backwashing function
  • High-viscosity fluid filtering device with backwashing function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] Example: such as figure 1 and figure 2 Shown, a kind of high-viscosity fluid filtering device with backwashing function comprises feed inlet 6, feed outlet 7 and filter chamber 8 between feed inlet 6 and discharge outlet 7, and described filter chamber 8 is provided with There is a filter core, and the filter is also provided with a discharge port 10, and the filter chamber 8 includes at least two, and a switching valve 11 is provided between the inlet of each filter chamber 8 and the feed port 6 and the discharge port 10 , the outlets of the at least two filter chambers 8 communicate with each other and communicate with the outlet 7 at the same time.

[0022] The filter core includes a support body 1 with a filter hole 9 and a filter screen 2 covering the filter hole 9 on the outside of the support body 1. The inside of the support body 1 is a hollow structure with a flow channel 13. Specifically, the support body 1 The cross section of the U-shape is U-shaped, the ...

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PUM

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Abstract

The invention discloses a high-viscosity fluid filtering device with backwashing function, which comprises a feeding hole, a discharging hole and at least two filtering chambers arranged between the feeding hole and the discharging hole, wherein a filter element is arranged in each filtering chamber which is also provided with a drain hole, switching valves are arranged between an inlet of each filtering chamber and the feeding hole and between the inlet of the each filtering chamber and the drain hole, and outlets of the at least two filtering chambers are communicated mutually and are communicated with the discharging hole. The invention has compact structure, small size, low maintenance cost, high working efficiency and long service life, can carry out the on-line backwashing, realizesthe continuous on-line working of a filter, and is an ideal device for filtering macromolecular melts.

Description

technical field [0001] The invention relates to a high-viscosity fluid filter device with backwashing function. Background technique [0002] Filtrating the solution or melt to remove impurities in the solution or melt during polymer processing is one of the factors related to the processing performance and quality of the product, and in some cases the impact of the filtration process on processing performance and quality is crucial. In most cases the filtration process needs to be carried out continuously, keeping the pressure fluctuations small. The existing filter assembly has large volume, low pressure resistance and high maintenance cost. The filter element cannot be cleaned online. After the filter screen is blocked, it must be removed from the filter for cleaning. The cleaning time is long, which affects the service life of the filter screen and is not conducive to continuous production. . In addition, because the replacement of filter elements will waste time and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D29/05B01D35/12
Inventor 刘必前张华李兰
Owner 盐城海普润科技股份有限公司
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