Method for stabilizing quality of double-hearth lime kiln

The invention belongs to the technical field of double-chamber lime kilns, and particularly relates to a method for stabilizing the quality of a double-chamber lime kiln. Comprising the following steps: (1) establishing a corresponding table of calorific value, heat consumption and yield of coal gas; (2) searching values corresponding to heat consumption and yield according to the current gas calorific value, and calculating gas flow through a first formula; (3) calculating the combustion air amount through a second formula; and (4) keeping the cooling air amount of 1kg of lime within the range of 0.6-1.0 Nm < 3 >. The coal gas amount and the combustion air amount can be adjusted through the actual heat value of the coal gas, the maximum combustion efficiency can be ensured, when the coal gas heat value of the converter fluctuates, values are taken according to the corresponding table of the coal gas heat value, the heat consumption and the yield, the coal gas amount and the combustion air amount can be kept