Efficient tail gas treatment fan

By designing a volute, interception components, and cleaning components, and utilizing a conical filter cover, servo motor, and brush plate, the problem of dust accumulation and blockage in the exhaust gas treatment fan during the extraction of high-temperature dusty gas was solved, achieving efficient and continuous exhaust gas treatment.

CN120140244BActive Publication Date: 2026-06-09HUBEI SANFENG TURBINE EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUBEI SANFENG TURBINE EQUIP CO LTD
Filing Date
2025-04-08
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing exhaust gas treatment fans are prone to dust accumulation on the fan blades when drawing in high-temperature dusty gas, which affects aerodynamic performance. Furthermore, when the filter screen becomes clogged, the efficiency is reduced, requiring shutdown for cleaning and affecting the continuous operation of the equipment.

Method used

The design incorporates a volute, interception, guidance, and cleaning components. It utilizes a conical filter hood to filter impurities, a servo motor to drive the drive ring and synchronous frame to move, and centrifugal force and vibration to dislodge dust. A brush plate cleans impurities, and the guide vane angle can be adjusted to achieve cleaning without stopping the machine.

Benefits of technology

It effectively prevents dust from accumulating in the middle of the filter cover, maintains uniform airflow distribution, extends impeller life, improves efficiency, enables continuous operation and cleaning, adapts to different working conditions, and reduces downtime maintenance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN120140244B_ABST
    Figure CN120140244B_ABST
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Abstract

The application discloses a high-efficiency tail gas treatment fan, and relates to the technical field of fans, which comprises a volute and an intercepting assembly. The volute is provided with an air inlet pipe on one side, and a driving motor is arranged on the other side of the volute, and the end of the driving motor is connected with an impeller. The intercepting assembly is arranged in the middle of the air inlet pipe, and comprises a servo motor, a driving gear, a gear ring, a driving ring, a driving groove, a fixing column, a synchronous frame, a blocking ring, a filter cover, a spring seat and an inner bushing. In the process of sucking tail gas, the filter cover is used to filter the impurity particles in the exhaust gas, so that the impurity particles flow to the edge of the filter cover, thereby preventing more dust impurities from adhering to the middle of the filter cover. In addition, the servo motor can be started at a regular time, the driving ring is driven to rotate through the driving gear and the gear ring, the fixing column drives the synchronous frame to move horizontally under the guidance of the driving groove, and the blocking ring is separated from the filter cover.
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