The invention relates to the technical field of thickening of magnetic concentrate, in particular to a process for concentrating and filtering
magnetite concentrate. The process for concentrating and filtering the
magnetite concentrate is characterized by comprising the following steps of: feeding floated and conveyed concentrate with the pulp concentration of 30 to 50 percent into a
concentrator, wherein -200-mesh pulp accounts for 95 percent in terms of pulp particle size; dehydrating the floated and conveyed concentrate pulp by using the
concentrator; conveying the dehydrated concentrate pulp with the concentration reaching 60 to 65 percent to a distributing box through a group of concentrate pumps; and distributing and conveying the concentrate pulp to a filter by using the distributing box, and filtering the concentrate pulp by the filter to obtain a
filter cake, namely a concentrate product, the
moisture content of which is 9 to 10 percent, wherein the filtrate and automatic drainage liquid generated by the
concentrator are returned to the concentrator. The process for concentrating and filtering the
magnetite concentrate has the following benefits that: the floated and conveyed concentrate is directly conveyed to the concentrator to be concentrated, thus the using efficiency of the concentrator is improved; spare parts of the equipment are reduced, the concentration process is optimized, and further the
energy consumption is reduced; and on the premise of not reducing the quality of concentrate, loss of
metal is reduced, and the yield of
iron ore concentrate is increased.