Charcoal Briquette Machine Improves Calorific Value of Coal Charcoal briquette machine is specially used for compressing the pulverized coal, iron powder, coking coal, charcoal powder, aluminum powder, scrap iron and tin oxide, carbon powder, slag, gypsum, tailings, sludge, kaolin, activated carbon, coke, waste residue etc. Charcoal briquette machine is widely used in refractories, power plant ...