A SYSTEM FOR REDUCING UN-BURNT CARBON CONTENT IN ASH PARTICLES

摘要

The system disclosed relates to the field of mechanical engineering. The system reduces carbon content present in ash. The ash particles are conveyed from a first hopper to a carbon burnout unit. The ash particles are fluidized in the carbon burnout unit by a fluidizing medium supplied by a first blower, thereby combusting the un-burnt carbon present in the ash particles, and generating residual ash and flue gases. A cyclone separator separates a first portion the flue gases containing ash particles having size greater than 7.5 microns, and releases a second portion of the flue gases containing fly ash. The heat from the second portion is extracted by a heat recovery unit. The second portion of the flue gases is then fed to an air pollution control unit to separate the fly ash from the flue gases. The flue gases are released to the atmosphere by a second blower.