Filter element

Abstract

The invention discloses a filter element. The filter element is placed in a filter to be used for carrying out gas-solid separation filtration and / or liquid-solid separation filtration on an object tobe filtered during use; the filter element comprises at least two filter tubes which are arranged at intervals, and tube bodies of the filter tubes are formed by shaping metal or sheet-shaped materials taking the metal as a base body in a rolled mode and carrying out sealing processing on joints; the outer diameter of the tube body formed by rolling is only 20-200 mm, preferably 20-90 mm, furtherpreferably 20-60 mm, and further preferably 25-50 mm, and the outer diameter of the tube body formed by rolling is only 20-200 mm, preferably 20-90 mm; the lengths of the filter tubes range from 100mm to 5000 mm, preferably range from 100 mm to 3000 mm, further preferably range from 100 mm to 2000 mm, and further preferably range from 200 mm to 1500 mm. A plurality of small-diameter filter tubesare bundled, so the filtering area can be remarkably increased in a limited mounting space; the length of the filter element is reduced, so the blowback effect can be more uniformly distributed in the axial direction of the filter tubes. Therefore, the technical problems that in the prior art, a filter element is small in filtering area and poor in back flushing effectiveness are effectively solved.

Description

[0001] This application claims the priority of the first application in China with the application number 2020102681879, the application date is April 8, 2020, and the title is "filter tube, cluster filter element and its application". technical field [0002] The invention relates to the technical field of flake materials and filtration, in particular, to filter cores. Background technique [0003] Sheet-shaped materials have significantly better high-temperature resistance than non-metallic cloth bags and lower filtration resistance than ceramic filter elements, so tubular filter elements rolled from sheet-shaped materials are widely used. [0004] The patent publication numbers that the applicant of the present application has submitted are CN104759630A, CN104759629A, CN104874798A, CN104959611A, CN104959612A and CN104874801A and other Chinese invention patent applications disclose unsupported or supported (referring to raw material powder is attached on the support body an...

AI Technical Summary

Problems solved by technology

[0005] (1) The inside or outside of the filter element is provided with a support body, which significantly increases the weight and cost;

[0006] (2) Due to the large diameter of the filter element, the sealing of both ends of the filter element is particularly complicated (such as the inner filter filter device published by the Chinese invention patent with the application number of 2018103243431), and once the filter element is damaged, it is usually replaced directly due to the difficulty of repair. very high cost;

[0007] (3) The diameter of the filter element is large, and the filter device requires a large footprint;

[0008] (4) If you want to reduce the seams to improve the strength of the filter element, you need to make the porous film before rolling have a very large area, which not only significantly increases the production cost, but also causes waste of small-area porous film after cutting;

[0009] (5) Since the filter element is very long, and the added support body significantly increases in weight, the handling and installation of the filter element requires the cooperation of multiple staff, which is time-consuming and laborious;

[0010] (6) When the filter element is very long, the uniformity of the blowback effect along the axial distribution of the filter element becomes worse;

[0011] (7) Due to limiting factors such as the site, the filter area of ​​the filter element is limited.

[0012] However, there is no effective and low-cost means to increase the filtration area and strength of the filter element rolled from sheet-like materials, except for increasing the diameter and length and setting the support body.

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