reducing the consumption of energy and labor intensity were achieved by the means of improving the air supply system and ash tapping system
retrieving waste steam from the furnace top
removing dust
preheating air in the combustion-supporting room in two 100m3 size of gad or coke burned lime-kiln. The purposes of energy-saving and increasing economic efficiency and social efficiency were achieved by improving the environmental pollution resulted from the dust of lime-kiln.