A baghouse dust collector for treating paraformaldehyde

By combining distributed dust removal components and continuous dust removal components, the problems of low dust removal efficiency, short filter bag life and poor safety in paraformaldehyde dust treatment are solved, achieving efficient and safe paraformaldehyde dust treatment.

CN224422251UActive Publication Date: 2026-06-30HEBEI JIZHOU YINHE CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI JIZHOU YINHE CHEM CO LTD
Filing Date
2025-06-17
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing technologies for treating paraformaldehyde dust suffer from problems such as low cleaning efficiency, short filter bag life, discontinuous operation, poor safety, and high cost. In particular, the reverse pulse cleaning process is prone to causing formaldehyde gas escape and filter bag corrosion.

Method used

The filter unit employs a distributed dust removal assembly and a continuous dust removal assembly, combined with a piezoelectric ceramic vibrator and a rotating jet to achieve independent control and coordinated dust removal. Through the precise opening and closing of the butterfly valve plate and high-pressure gas blowing, combined with mechanical oscillation waves, the caking layer on the surface of the filter cloth is peeled off.

Benefits of technology

It improves dust removal efficiency, extends filter bag life, ensures continuous system operation, reduces operating costs and safety risks, and minimizes health threats to operators.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application discloses a baghouse dust collector for treating paraformaldehyde, relating to the field of dust collection devices, including a housing assembly, filter units, a distributed cleaning assembly, and a continuous dust discharge assembly. The housing assembly is constructed by welding an upper cylindrical cavity and a lower conical ash hopper. A horizontally arranged partition with through holes in the middle divides the internal space into a filter chamber and an air inlet chamber. Several independent filter units are installed in a matrix arrangement within the filter chamber, with each filter unit extending through the through holes in the partition into the air inlet chamber. The device utilizes an independent filter unit control mechanism, whereby when a selected unit performs a cleaning operation, the remaining units maintain normal filtration. This, combined with precise opening and closing of pneumatic valves, enables continuous system operation.
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