Characteristic and Utilization Applicability Analysis of Fly Ash in Coal-fired Power Plant

Abstract

A coal-fired power plant in Northwest China was selected to evaluate the way and scope of comprehensive utilization of fly ash, through the detection of various properties of fly ash, the local industrial and transportation conditions, so as to provide guidance for the comprehensive utilization of fly ash. The fly ash of the coal-fired power plant can be used for filling and soil restoration, but the soil environment monitoring and agricultural products collaborative monitoring should be strengthened; due to incomplete combustion of the boiler; the fly ash does not meet the preparation conditions of ceramsite; it can be used for making silicate products such as bricks and for road subgrade construction; it has the potential to extract carbon particles and magnetic beads, but not to extract Al₂O₃ and SiO₂; it meets the requirements of radioactivity, and the way of use is not restricted by reflection; it can be used for the preparation of new materials such as environmental adsorption; it can be transported to Beijing, Tianjin and Hebei province carried by railway.