Method of heating glass melting tank - has oxygen enriched gas substituted for initial air feed without decreasing flame length

摘要

The glass tank has heat supplied by firing one or more burners of a kind in which air is initially employed to atomise the fuel. Oxygen-rich gas, is subsequently substituted for the air. This substitution is carried out without decreasing the flame length. On making the substitution, the rates of supply of atomising agent, and secondary air are reduced. A burner head with a central passage (32) for oil, and outer passages (30) for atomising gas, projects atomised fuel from an orifice (48).