Filter material with single-face film structure for desulfurization and denitrification

By using a rotating split filter media design and a gradient filtration structure, the problems of high filter media resistance and rapid local wear are solved, enabling modular replacement of filter media and efficient flue gas purification, reducing maintenance costs and downtime.

CN122124566APending Publication Date: 2026-06-02JIANGSU FIRST FILTER MATERIAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU FIRST FILTER MATERIAL
Filing Date
2026-02-10
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing filter media suffer from high filtration resistance, rapid local wear, and high maintenance costs during flue gas purification. Furthermore, the fixed design makes filter bag replacement inconvenient and affects equipment operating efficiency.

Method used

The filter media adopts a rotating split design, including components such as an inner frame, outer frame, turntable, air supply device, and filter media frame. It forms a cylindrical filter cylinder through a support mechanism and frame mechanism. The filter media rotates evenly for filtration, enabling modular disassembly and quick replacement. Combined with a gradient filtration structure of multiple fiber layers and membrane layers, it ensures uniform flue gas contact and reduces resistance.

Benefits of technology

This achieves uniform wear of the filter media and extends its service life, reducing maintenance costs and downtime, and improving filtration efficiency and equipment operational stability.

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Abstract

This invention belongs to the field of filter media, specifically relating to a filter media with a single-sided membrane structure for desulfurization and denitrification. The supporting mechanism includes an inner frame, and an outer frame with a positioning groove is provided at the end of the inner frame. The adjusting mechanism includes a turntable located below the inner frame, and the turntable and the inner frame are controlled to rotate synchronously under the drive of a driving device. The inner and outer frames form a supporting structure, and the filter media modules combined with the frame mechanism and filter media parts are spliced ​​into a cylindrical filter cylinder. Flue gas flows in from the outside of the filter cylinder for gradient filtration to obtain clean gas. The adjusting mechanism ensures that each filter media part is in uniform contact with the flue gas for filtration by rotation. Through the uniform rotation of the filter media parts, the entire filtration surface is evenly subjected to the scouring of flue gas, avoiding premature local damage caused by one-sided wind exposure when the filter bag is fixedly installed. The cylindrical filter cylinder can be rotated and modularly disassembled, realizing the rapid replacement of the filter media parts and avoiding the scrapping of the whole, which greatly reduces maintenance costs and downtime.
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