Abstract: Disclosed herein is a coal fed power generation system comprising a mill in fluid communication with a furnace; where the mill is operative to pulverize coal and to ventilate the coal; where the furnace contains more than one burner or burner nozzles; where the burner or burner nozzles are operative to receive the coal from the mill and combust it in the furnace; and a plurality of flow control devices; where at least one flow control device is in fluid communication with the mill and with the burner or burner nozzle; and where the flow control device that is in fluid communication with the mill and with the burners or burner nozzles is closed to prevent fluid communication between the mill and the furnace during the operation of the furnace.

Abstract: A hammer (5) for a beater mill used to process coal, biomass material and other materials is provided having a hammer body (11), an impeller head (13) at a first end of the hammer body (11), and a bore (15) at a second opposite end of the hammer body (11). The impeller head (13) is detachably connected to the hammer body (11) by a base plate 17. Base plate (17) has a first side with a protrusion (21) and at least one bolt (29) protruding therefrom and a second opposed planar side with a crushing member (19). Protrusion (21) and at least one bolt (29) detachably connects impeller head (13) to first end of hammer body (11).

Abstract: Disclosed herein is a coal fed power generation system comprising a mill in fluid communication with a furnace; where the mill is operative to pulverize coal and to ventilate the coal; where the furnace contains more than one burner or burner nozzles; where the burner or burner nozzles are operative to receive the coal from the mill and combust it in the furnace; and a plurality of flow control devices; where at least one flow control device is in fluid communication with the mill and with the burner or burner nozzle; and where the flow control device that is in fluid communication with the mill and with the burners or burner nozzles is closed to prevent fluid communication between the mill and the furnace during the operation of the furnace.