As the flue gas and air flow are separately for heat exchanging, the heated air is clean. So, hot air furnace is widely used for drying the goods that not allowed to be polluted, such as milk powder, medicine, and synthetic resin, etc.

The coal/biomass fired hot air furnace are widely used for:

(1) Rotary kiln

(2) Drying for chemical and medicine products  

(3) Textile and printing and dyeing industry  

(4) Drying for molding industry  

(5) Drying for wood in architectural material industry, gypsum board and firegalss products  

(6) Baking for agricultural products, fodder and food processing  

(7) Supply heating project industrial factory and civil buildings and henhouse, etc