Method for feeding fly ash in electric power plant

Abstract

A method for delivering powder coal ash of electric power plant includes such steps as discharging the powdered coal ash from the ash hopper of electric duster, delivering it via the wind distributing pipe communicated with the air inlet and outlet of lower, wind separation by the wind separation system composed of serially connected at least two wind separation unit for separating coarse powdered coal ash from fine one, and delivering the coarse powdered coal ash and fine one into respective ash storehouses by respective pump. Its advantages are compact structure, less possessed ground, and no environmental pollution.

Description

technical field [0001] The invention belongs to the technical field of material conveying, and in particular relates to a method for conveying fly ash in the power generation process of a thermal power plant. Background technique [0002] At present, coal-fired thermal power plants use the dry removal and dry discharge method to transport the fly ash produced after being discharged by the electrostatic precipitator, that is, connect dozens of ash delivery bin pumps at the lower end of each electrostatic precipitator, and directly The fly ash is transported to the ash store, and then the fly ash in the ash store is classified and processed according to the size of the ash particles by independent sorting equipment. In the conveying process of the fly ash, since the method of conveying first and then sorting is adopted, more than a dozen ash conveying bin pumps must be connected to the lower end of each electrostatic precipitator (for example, a 300,000-kilowatt generator set)...

AI Technical Summary

Problems solved by technology

Therefore, the method of conveying fly ash has the disadvantages of many equipments, a large area occupied by the site, a large amount of maintenance, and the leakage of the ash conveying bin pump can easily cause environmental pollution in the factory area.

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