Mineral aggregate mining uniform quality matching control method

Abstract

The invention discloses a mineral aggregate mining uniform quality matching control method, and belongs to the field of machine-made sandstone production. The method comprises the following steps: 1, carrying out a blasting test, and correcting blasting parameters and preliminary mineral aggregate particle size fractions; 2, carrying out a gravel system productivity test, further correcting blasting parameters, and carrying out secondary optimization on the particle size fraction of the mineral aggregate; 3, dividing mineral aggregate obtained through blasting into productive mining qualified ore and unqualified ore, stacking the productive mining qualified ore and the unqualified ore in different areas, and classifying the unqualified ore according to the soft rock content, the particle size fraction distribution condition, the mud content and the water content and stacked in different stacks; and 4, mixing a plurality of types of unqualified ores with qualified ores in productive mining, and if the mixed ores meet the requirements of the soft rock content, the mud content, the water content and the control value at the same time, determining that the ores are qualified, if not, determining that the ores are unqualified. The influence of weak rock, particle size fraction, mud content and water content on a material source can be weakened, so that the material source of a sandstone production system is kept relatively homogeneous and balanced.

Description

technical field [0001] The invention relates to a method for controlling uniformity, quality, and collocation of mining materials, and belongs to the technical field of machine-made sandstone production. Background technique [0002] In the process of mining, due to the influence of geological structure, hydrometeorology, mining technology and other factors, the ore parent rock characteristics, particle size and particle size, moisture content, etc. of ore mined at different locations or at different periods are quite different. First of all, due to the difference in geological structure, the lithology (chemical composition and weathering degree) of the same mine also has certain differences, and the difference in the characteristics of the parent rock will lead to different processing characteristics. Secondly, different mining locations generally adopt different blasting control parameters, such as areas with developed joints, slope areas, and areas with large areas of roc...

AI Technical Summary

Problems solved by technology

[0003] The parent rock characteristics, particle size, moisture content and mud content of the material source will have an important impact on the crushing efficiency of the sand and gravel production system, the particle shape and size after crushing, and the screening efficiency. Fluctuations in particle size, moisture content, and mud content will lead to problems such as reduced production capacity, poor product quality, and poor dust control effects in the sand and gravel production system.

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