Gold grinding machine mainly through the raw material stirring, rolling, crushing, rolling repeatedly to achieve water balance, uniform ratio, low gas content, improve the molding rate and molding quality, through the machine grinding material molding products, with high density, good strength, no porosity ratio and other characteristics. High efficiency and energy saving, high output, the product is used for the recovery of tailings in the iron ore process, does not make the loss of mineral powder, so that effective resources can be fully utilized.