There has always been a bottleneck in the pulping process of white carbon black production. The solid content of the filter cake in the existing pulping machine cannot exceed 20%. If the solid content is too high, it will cause difficulties in pulping, motor overload and stuffy tanks. , resulting in the failure of pulping, which directly affects production. Increasing the power of the electric motor can not solve the problem. For this reason, we have redesigned and upgraded the pulping equipment based on the research of similar foreign pulping machines and domestic conditions.