Pneumatic ash discharging device for ash deposition at bottom of tail flue of pulverized coal fired boiler

Abstract

The invention provides a pneumatic ash discharging device for ash deposition at the bottom of a tail flue of a pulverized coal fired boiler, and relates to the field of treatment of the tail flue of the pulverized coal fired boiler. Comprising a boiler, the boiler comprises a hearth and a tail flue which are arranged front and back, the bottom of the tail flue is connected with a tail flue ash discharging pipe, the tail flue ash discharging pipe is connected with an ash conveying pipe, the ash conveying pipe is connected to a slag extractor, and blowing devices are arranged in the tail flue ash discharging pipe and the ash conveying pipe. The device is efficient and automatic, can prevent high-temperature dust deposition from hurting personnel, eliminates potential safety hazards, avoids field dust raising, and is beneficial to field environmental protection and sanitation.

Description

technical field [0001] The invention relates to the field of flue treatment at the tail of a pulverized coal boiler, in particular to a pneumatic ash lowering device for ash accumulation at the bottom of the flue at the tail of a pulverized coal boiler. Background technique [0002] In places where boilers are needed, such as heating workshops, with the combustion of pulverized coal, there will be a large amount of ash accumulation at the bottom of the boiler tail flue. The existing treatment method is to manually pass the ash accumulation at the tail of the pulverized coal boiler through the inserting plate. The sealed ash discharge pipeline is placed in a trolley for transportation, but this method is not environmentally friendly due to the dust on site during ash discharge, which affects the health of operators; and the temperature of ash accumulation in the tail flue is high, which may easily cause burns. There is a safety hazard Hidden danger. Contents of the inventio...

AI Technical Summary

Problems solved by technology

[0002] In places where boilers are needed, such as heating workshops, with the combustion of pulverized coal, there will be a large amount of ash accumulation at the bottom of the boiler tail flue. The existing treatment method is to manually pass the ash accumulation at the tail of the pulverized coal boiler through the inserting plate. The sealed ash discharge pipeline is placed in a trolley for transportation, but this method is not environmentally friendly due to the dust on site during ash discharge, which affects the health of operators; and the temperature of ash accumulation in the tail flue is high, which may easily cause burns. There is a safety hazard Hidden danger

Images