Tail fine ash recovery device of coal-fired steam boiler

Abstract

The utility model belongs to the technical field of boiler technical structure design, and relates to a coal-fired steam boiler tail fine ash recovery device which comprises an ash outlet inclined pipe, a water seal ash outlet box and an ash flushing water pipe, the ash outlet inclined pipe is obliquely arranged, the upper end of the ash outlet inclined pipe is communicated with an ash outlet straight pipe, and the lower end of the ash outlet inclined pipe is communicated with the water seal ash outlet box above a slag flushing opening. One end of the ash flushing water pipe is connected with an external slag flushing water pipe with pressure, the other end of the ash flushing water pipe is communicated with the upper end of the ash port inclined pipe, the water seal ash discharging box receives slag flushing water in the slag flushing channel through the ash flushing water pipe, and the water seal ash discharging box discharges the slag flushing water into the slag flushing channel through the discharging short pipe. And the device works well, the hidden danger that a boiler worker makes direct contact with the dust is eradicated, and the working environment of operators is really improved.

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