PROCESS FOR THE RECOVERY AND RE-USE OF FLY ASH FROM THERMAL POWER PLANTS USING COAL

摘要

A heat treatment method for dry or wet fly ash from coal-fired thermal power plants is described, which includes the steps of drying and then burning the ash. The method includes exposing the ash to infrared radiation to burn and remove the unburnt ash and using the gross calorific value of the combustion to initially dry the ash. The invention is particularly advantageous for reprocessing fly ash.