New mills for breaking up refractory raw materials

Conclusions

At the Semiluk Refractories Plant new types of two-plate and single-plate mills were constructed from drawings supplied by the Ukrainian Scientific-Research Institute of Refractories. The mills were tested and are used for breaking up the clay before it is fed into disintegrators and for grinding waste material from the production of lightweight corundum bricks after it is first crushed in a jaw crusher. A two-plate mill is in use also at the Zaporozhe Refractories Plant for breaking up lumps of sintered silicon carbide powder.

The centrifugal mills are small and can be constructed in the tool and engineering shops of refractory plants. The installation of the centrifugal mills has resulted in the elimination of basket fractures in the disintegrators by the metallic and other hard objects that may be accidentally contained in the material, and it has resulted in longer basket life.