The invention discloses a reselection
recovery method for gold. The method comprises the following steps that primary ore
grinding is carried out on raw ore, ore pulp generated after ore
grinding is sorted by a jigging
machine,
magnetic separation is carried out on jigged concentrates, and jigged
tailings enter a classifier; the magnetic concentrates are selected finely to obtain
iron ore concentrates, the magnetic
tailings enter a table
concentrator, and concentrates of the table
concentrator are adopted as
alloy gold; classification and
machine overflowing are carried out on middlings and
tailings of the table
concentrator, the middlings and the tailings enter the
cyclone, and coarse particles return to a first-stage ball grinder to be ground again; the
cyclone carries out overflowing, the floatation operation is executed, secondary ore
grinding is carried out on
cinnabar, and materials obtained after ore grinding enter a Nelson concentrating
machine; floatation is carried out on tailings of the Nelson concentrating machine, and concentrates begin to be jigged; the jigged concentrates enter the table concentrator, and jigged tailings return to the
cyclone to be classified; the concentrates and the tailings are obtained through flotation. According to the reselection
recovery method for the gold, the reselection
recovery rate is improved by 22.11 percent, and the
total recovery rate of ore dressing is improved by 2.69 percent.