Design and Operational Analysis on Natural Gas-fired Cupola

Due to environmental regulations and social obligation towards society, more and more attention has been paid to the natural gas-fired for its excellent performance of environmental protection, energy saving and green economy. The present paper is devoted to the design and operational analysis aspects of natural gas-fired cupola. The basic structure of natural gas-fired cupola, including combustion section, melting section, preheating section and cupola well, etc has been discussed. The key technologies of burners, water-cooled grates, lining refractory, refractory balls, air preheater and cupola well are analyzed, and the basic parameters are determined. The melting process is briefly introduced, and the thermal balance of the whole furnace is analyzed. Application of the test in the case shows that natural gas-fired cupola has obvious advantages and high practical value.