TY - JOUR N2 - The author has developed and patented several types of gas cupola furnaces, which, due to replacing coke with gas, do not emit carbon monoxide, sulfur dioxide and coke dust. The author has defined the optimal modes of gas-and-air mixture combustion, i.e. the optimal coefficient of air discharge and gas mixture escape speed in melting cast iron. It has been experimentally proved that from the point of view of obtaining the maximum temperature, the optimal was the process with some lack of air, i.e. with α = 0.98. The results of metallurgical studies used in the article allowed to develop an optimal structure of the gas cupola furnace with a heterogeneous refractory filling, and to establish the optimal composition of the filling. For the first time the optimal composition of the filling is given: 40% of chamotte, 30% of high-alumina refractory, 30% of electrode scrap. It has been noted that when gas cupola furnaces were used, the main environmental advantage was the reduction of dust emission into the atmosphere, CO and SO2 content. L1 - http://journals.pan.pl/Content/107818/PDF/AFE%203_2018_13.pdf L2 - http://journals.pan.pl/Content/107818 PY - 2018 IS - No 3 EP - 80 KW - Innovative foundry technologies and materials KW - heat treatment KW - Gas Cupola Furnace KW - Gas Combustion Mode KW - Heterogeneous Refractory Filling A1 - Grachev, V. PB - The Katowice Branch of the Polish Academy of Sciences VL - vol.18 DA - 2018.07.19 T1 - Advantages of Melting Cast Iron in Gas Cupola Furnaces SP - 76 UR - http://journals.pan.pl/dlibra/publication/edition/107818 T2 - Archives of Foundry Engineering ER -