Efficient mineral processing technology achieved through cooperation of high-pressure grinding roller and magnetic field screening machine

Abstract

The invention discloses an efficient mineral processing technology achieved through cooperation of a high-pressure grinding roller and a magnetic field screening machine. The efficient mineral processing technology is scientific and simple in technological process and low in operating cost. The high-pressure grinding roller is high in reduction ration and small in product particle size, and therefore the iron mineral monomer separation degree is effectively improved during crushing operation, and the processing capacity of the grinding roller is greatly improved. For high-pressure roller fine fraction products, part of qualified iron core concentration where monomer separation is conducted is selected through the magnetic field screening machine, and therefore the excessive grinding amount and the grinding and separating operation ore quantity are effectively decreased, energy conservation and consumption reduction are achieved, and economic benefits are obvious.

Description

technical field [0001] The invention relates to a magnetite beneficiation process, in particular to a high-efficiency ore beneficiation process utilizing a high-pressure roller mill and a magnetic field screening machine. Background technique [0002] In recent years, with the gradual depletion of iron ore resources that are easy to mine and select, the selectivity of ores has become worse and worse, making it more and more difficult to ensure the quality of the original concentrate, resulting in the original On the basis of fine sieve size to control the particle size, the overwhelmed regrinding system is in a long-term overload state, and the final direct consequence is that the production capacity is greatly reduced. The contradiction between the quality and output of iron ore concentrate, and the benefit and cost of the concentrator is becoming more and more prominent. The original process can no longer meet the current requirements of ore properties and concentrate qual...

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the gradual depletion of iron ore resources that are easy to mine and select, the selectivity of ores has become worse and worse, making it more and more difficult to ensure the quality of the original concentrate, resulting in the On the basis of blindly increasing the fine mesh size to control the particle size, the overwhelmed regrinding system is in a long-term overload state, and the final direct consequence is that the production capacity is greatly reduced

The contradiction between the quality and output of iron ore concentrate, and the benefit and cost of the concentrator has become increasingly prominent, and the original technology has become increasingly unable to meet the current requirements for ore properties and concentrate quality

The main problem of the fine sieve regrinding process is the implementation of "one size fits all" in the control of the grinding fineness, which will cause overgrinding of the coarse-grained magnetite monomer in most of the magnetite with uneven distribution of thickness. , and the iron minerals that exist in the form of fine-grained conglomerates will be sieved into the concentrate, thus affecting the quality of the concentrate

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