This product is strictly screened for tires, all steel tires are used as raw materials, after pyrolysis, coke slag coarse powder, iron removal, secondary crushing, secondary iron removal, modification, granulation, sieving, drying and cooling, The finished modified particle pyrolysis carbon black is obtained. The carbon black is in the form of granules, which has the advantages of high feed speed, low powder rate, less dust flying, convenient transportation and use, small product particle size, large specific surface area, high hardness, high tensile stress, low heat generation, flex resistance, It is an environmentally friendly product with features such as aging resistance and good processing performance.