... cracked stove, roaster, melting furnace, hot stove, oil gas boiler, etc. This technology is to make two regenerator ... , and then heat the combustion-supporting air and coal gas to more than 1000°C, even the inferior ... fuel (e.g. the blast furnace gas ) of lower calorific power can also catch fire ... than 100ppm, and make the temperature of exhaust gas emission lower than 160°C. It will reduce ...