Wide-particle-size coal series kaolinite upgrading process based on fluidization sorting

Abstract

The invention discloses a wide-particle-size coal series kaolinite upgrading process based on fluidization sorting, and belongs to coal series kaolinite upgrading processes. The process comprises the steps that coal series kaolinite raw ore is firstly subjected to mechanical sorting, coarse crushing, screening and drying, the raw ore of -50 mm enters a composite dry method sorting machine to be pre-sorted, and light products are screened by a vibration screen of 6 mm; the ore of 6 mm to 50 mm passes through a dense gas-solid fluidized bed sorting machine to obtain coarse-grained concentrate and tailings, the concentrate is subjected to medium removal and then finely ground to obtain ore of -6 mm, and the ore of -6 mm and the original ore of -6 mm are evenly mixed and screened by a classifying screen of 0.5 mm; the ore of 0.5 mm to 6 mm passes through a vibrated fluidized bed sorting machine to obtain fine-grained concentrate and tailings; the ore of -0. 5 mm is subjected to ore grinding, sand removal and classification and then passes through a flotation machine to obtain flotation concentrate and tailings; the concentrate of 0.5 mm to 6 mm is ground after being subjected to medium removal, and is mixed with the flotation concentrate, and then titanium and iron-containing high-magnetic mineral is removed through magnetic separation. Medium solids are separated through a medium removal screen and are subjected to dry type magnetic separation and recycled as circulating media. According to the process, efficient sorting of the wide-particle-size coal series kaolinite raw ore is achieved, and great significance for development and utilization of coal series kaolinite resources in our country is achieved.

Description

technical field [0001] The invention relates to a process for upgrading the quality of coal series kaolin, in particular to a process for upgrading the quality of wide-grained coal series kaolin based on fluidized separation. technical background [0002] Coal-measure kaolin is scientifically called kaolinite clay rock, which belongs to non-metallic mineral resources and has high utilization value. my country is rich in coal-measure kaolin resources, with proven reserves of 2.839 billion tons and total reserves of over 49.709 billion tons. Coal-based kaolin can be used in papermaking, coatings, plastics, rubber fillers, ceramics, refractory materials, and in the synthesis of zeolite and aluminum sulfate. Now, with the decreasing reserves of high-quality coal-measure kaolin resources and the improvement of high-tech application fields for kaolin, it is of great practical significance to carry out research on high-efficiency purification technology of coal-measure kaolin mine...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a wide-grained coal-measure kaolin upgrading process based on fluidized separation, aiming at solving the problem of extensive processing and utilization of coal-measure kaolin, high energy consumption in the production process, and low recovery rate of kaolin concentrate. Low and environmental pollution problems

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