This production line has many bright spots of innovation: the automatic feed, automatic feed and finishing products, coarse particle automatic back material system, more to ensure the integrity of the device, reduces the labor cost, greatly increasing the service efficiency of the equipment. Of crushing equipment on the basis of the introduction of German technology development and innovation, has the characteristics of line speed, low temperature, high stability, through high-speed air impact make nano calcium aggregate spallation, at the same time have a drying effect. Grading equipment classification precision, cutting small particle size, classification efficiency is much higher than traditional squirrel-cage classifier. The whole production line set crushing, grading, aggregate, and dust removal in a body, in a closed state, no dust pollution, clean environmental protection, which can realize the large-scale production of nano calcium.