The ring roller mill is our self-developed patent product (Patent Number: ZL02270593.7), by impact, extrusion, grinding and other principles of the material to crush. Step by step using centrifugall force grinding ring Shuaixiang grinding ring (stator) and rotating wall compression Juan, materials ring through the grinding mill ring gap, the impact ring by grinding, pressing, grinding and grinding, grinding ring are single or multi-layer distribution structure, the base may face for the face surface, grinding and more multi-ring, smashing face large, so crushing, high efficiency, the material fully, the product fineness good, the well-known experts and scholars found that the type of machine is advanced dry powders are finely ground non-metallic mining equipment.