Same with the rotary shaft kiln, are required to rely on some of the combustible objects and the heat generated by the combustion gases to achieve their purpose of calcined material. Here we introduce the gas fuel Pros: Easy ignition and stop the kiln, combustion is easy to adjust, can be pre-automatic control, complete combustion of combustible components of high utilization of the process requirements applicability, easy to adjust the flame temperature and so on. Because each type of kiln firing principle and work in different ways, so that they have their own special gas requirements. All kilns for heat value requirement and the use of gas species. Low calorific value gas lime shaft kiln requirements for gas calorific value is less than or equal 7536/kj * m-3, suitable for use in gas types are: blast furnace gas, converter gas and mixed gas. And PFR dual bore shaft kiln requirements for gas calorific value is greater than or equal 6489/kj * m-3, using the gas species are: natural gas, coke oven gas, calcium carbide furnace gas, converter gas, mixed gas. Double-D shaft kiln requirements for gas calorific value is greater than or equal 7536/kj * m-3, a suitable type of gas is natural gas, coke oven gas, calcium carbide furnace gas, converter gas, mixed gas. Telescopic shaft kiln requirements for gas calorific value is greater than or equal 6699/kj * m-3, a suitable type of gas is natural gas, coke oven gas, calcium carbide furnace gas, converter gas, mixed gas. Beam vertical kiln burner gas calorific value is greater than or equal requirements 6699/kj * m-3, a suitable type of gas is natural gas, coke oven gas, calcium carbide furnace gas, converter gas, mixed gas. Kiln gas calorific value is greater than or equal 12560/kj * m-3, natural gas, coke oven gas, mixed gas. CID kiln requirements for gas calorific value is greater than or equal 7536/kj * m-3, a suitable type of gas is natural gas, coke oven gas, calcium carbide furnace gas, converter gas, mixed gas. Please indicate Henan YuFeng Heavy Machinery (http://www.yufchina.com)