Process for concentrating and filtering magnetite concentrate

Abstract

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.

Description

technical field [0001] The invention relates to the technical field of concentration and dehydration of magnetite concentrate, in particular to a process for concentrating and filtering magnetite concentrate. Background technique [0002] The concentrated ore delivered from the flotation workshop has a small concentration. In order to meet the process index of the filter feeding the ore, the magnetic concentrate must be concentrated before being fed into the filter. The original technological process uses a concentrated magnetic separator for concentration. At that time, 7 magnetic separators were used for concentration. [0003] Due to the large amount of chemicals contained in the transported concentrate, which affects the separation effect of the concentrated magnetic separator, resulting in excessive tailings, 3 sets of recycling machines are added to process the magnetic separation tailings. [0004] During the processing of magnetic separation tailings, a φ30m thicken...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a process for concentrating and filtering magnetite concentrates, the purpose of which is to solve the problems of low utilization efficiency of concentrators, large energy consumption, and inconspicuous concentration effects of combined magnetic separation in the filtration process, etc.

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