CDQ is a widely used energy-saving technology in the world at present. It refers to a Petroleum By Products quenching method that uses inert gas to cool the red Petroleum By Products. Advantages of CDQ: 1 Absorb the heat of red Petroleum By Products and save energy 2 Improve the quality of Petroleum By Products 3 Improve the environment and reduce pollution Dry quenching powder, particle size 0-10mm, can be subdivided into 0-1mm, 0-2mm, 0-3mm, 0-5mm, 1-4mm, 3-8mm, 5-10mm and other different particle sizes, product indicators: item character unit Dry basis Moisture Mad % 1 aSH A % 13 Vdaf V % 1.5 sulphur St % 0.8 Fixed carbon Fc % 85 The products are mainly used in blast furnace mud, metal blast furnace smelting, carbon graphite, blast furnace injection of carbon powder, float glass production, metallurgical burden and other fields