Annealing furnaces are mainly classified by heat source into electric furnaces, coal-fired annealing furnaces, oil-fired annealing furnaces, natural gas annealing furnaces, and coal gas annealing furnaces, among which coal gas annealing furnaces produced by self-supplied coal gas generators are the most widely used. Coal gas annealing furnaces eliminate the combustion chamber, directly utilizing gas burners for combustion in the heating chamber. To reduce energy consumption, coal gas annealing furnaces are often equipped with a heat exchange system that converts air into combustion-supporting hot air for coal gas combustion.
The bogie-type annealing furnace is a national standard energy-saving periodic operation furnace with an ultra-energy-saving structure, using a fiber structure, saving 30% of electricity. It is exclusively manufactured using composite high-alumina ceramic nail assemblies, impact-resistant sealing bricks on the bogie, automatic sealing of the bogie and furnace door, and integrated rail connection, requiring no foundation installation and can be used simply by placing it on a level surface. It is mainly used for quenching, annealing, aging of high-chromium and high-manganese steel castings, ductile iron, rolls, steel balls, 45 steel, stainless steel, etc., as well as for heat treatment of various mechanical parts.
