In the production process of vertical roller mill, coatings and other fillers, the fineness of the fillers is required to be in the range of 10-15 μms. - 10 μmcan be used as filler for plastics, rubber and paper making. The fineness of ink filler should be - 5 μmand after activation treatment.
As a calcium additive for agricultural fertilizer, feed and food, the fineness requirement is higher than 1000 meshes. The vertical roller mill needs about 200-300 tons per day, and more than 130 grinders are selected for grinding equipment. Calcium oxide is used for desulfurization in furnace and calcium carbonate is used for flue gas desulfurization. Calcium oxide has the best desulfurization effect, but its relative cost is higher.
As a calcium additive for agricultural fertilizer, feed and food, the fineness requirement is higher than 1000 meshes.