1.Patent owner 2.Durable, with lower maintain cost 3,Origin of heat: coal ... the shaping of ball, stick, rods, lump for coal powder, metal powder, stone powders, etc. ** Unit volume into the furnace: ... 000~316,000 tons** water % of input: 10%~14%** output: 2%~4%** Water evaporated: 3000~4000 kg/h** Coal consumption: 550 ... ~800 kg/h** Outer size: Dia. 16*2.8*6.3m & 18*2.8*6.3m & 20*2.8*6.3m