The invention discloses a production process
system for producing multi-product
machine-made sand. The production process
system comprises a
raw material bin, a
machine-made sand vertical mill, a combined-type
powder concentrator, a vibrating screen, a
cyclone and a circulating fan, wherein the
raw material bin, the
machine-made sand vertical mill and the combined-type
powder concentrator are connected in sequence, a bottom discharging port of the combined-type
powder concentrator is connected with the vibrating screen, the vibrating screen returns oversize products to the machine-made sand vertical mill, an air outlet of the combined-type powder concentrator is connected with the
cyclone, and an air outlet of the
cyclone is connected with the circulating fan; and a plurality
layers of screens with different pore sizes are arranged on the vibrating screen. The cone angle of each
grinding roller of the machine-made sand vertical mill is not larger than 20 degrees, and the total projection area of the
grinding rollers on a
grinding disc accounts for 20-35% of the area of the grinding disc. A retention ring is a
cut-through screening and retention
assembly or a cross-type retention ring, auxiliary discharging assemblies arranged on the grinding disc and are located behind each grinding roller in the rotation direction of the grinding disc. By means of the process
system, production of the multi-product machine-made sand can be achieved, and scale production is facilitated; and meanwhile, the effect of
environmental protection is better, and ultraclean
discharge can be achieved.