Biomass boiler flue ash discharging device

By designing a cleaning and ash removal mechanism in the flue of the biomass boiler, the problems of ash accumulation and corrosion during the combustion of biomass fuel have been solved, realizing automated cleaning and multi-stage ash removal, and improving the boiler's operating efficiency and resource utilization.

CN224479647UActive Publication Date: 2026-07-10忻州蓝天锅炉有限责任公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
忻州蓝天锅炉有限责任公司
Filing Date
2025-07-25
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Biomass fuel contains a lot of alkali metals and chlorine during combustion, which leads to a decrease in ash melting point, causing problems such as coking of bed material, ash accumulation and adhesion, high-temperature corrosion and low-temperature corrosion. Moreover, existing technologies are unable to effectively solve the problems of ash blockage and ash accumulation on boiler heating surfaces.

Method used

Design a biomass boiler flue ash discharge device, including a cleaning mechanism, first and second ash discharge mechanisms, a flow guiding mechanism and a smoke guiding mechanism. Through components such as soot blowers, capacitive sensors, ash hoppers, ash discharge valves and radio frequency admittance level gauges, it realizes automated cleaning and multi-stage ash discharge, reducing ash accumulation and corrosion hazards.

Benefits of technology

It effectively reduces ash accumulation and adhesion caused by ash entrainment in biomass fuel, reduces the damage caused by high and low temperature corrosion, reduces the workload of soot blowers, saves resources, adds automatic ash discharge and cleaning functions, and improves boiler operating efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224479647U_ABST
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Abstract

The utility model belongs to boiler technical field especially is a kind of biomass boiler flue ash discharging device, including flue main part, four heating surface components are sequentially arranged from top to bottom in the inner wall of flue main part, corresponding cleaning mechanism is installed on the inner wall of flue main part on the upper surface of heating surface component, corresponding first ash removal mechanism is set in the inner wall of flue main part in the lower surface of heating surface component, corresponding flue between first ash removal mechanism left side is provided with flow guide mechanism;The utility model can effectively reduce the problem that the ash of tail heating surface is adhered due to the more ash of biomass fuel, also can effectively reduce the harm, such as high-temperature corrosion and low-temperature corrosion, caused by more alkaline substance in biomass fuel ash, multi-stage arrangement first ash removal mechanism can effectively reduce the workload of various types of ash blower, save resources problem is played, and increase automatic ash removal and cleaning function, facilitate use.
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