Method for speculating iron grade in banded magnet quartzite-type iron ore by using true density

Abstract

The invention discloses a method for speculating an iron grade in a banded magnet quartzite-type iron ore by using true density. The method comprises the following steps: using a powder sample true density determination method to test the true density of the banded magnet quartzite-type iron ore; and using the true density of the tested banded magnet quartzite-type iron ore, magnetite density in the banded magnet quartzite-type iron ore, iron content, and quartz density to calculate the iron grade. Under condition that chemical analysis equipment is deficient, the method can rapidly test the iron grade in the iron ore, has the advantages of simple and fast operation, saves equipment, material and manpower cost, can ensure the safe work condition, avoids environment pollution, and is helpful for accelerating mine exploitation speed.

Description

technical field [0001] The invention relates to the technical field of mining and metallurgy, in particular to a method for estimating the iron grade in banded magnetite-quartzite iron ore by using true density. Background technique [0002] my country's iron ore resources are abundant, but there are not many iron resources that are relatively easy to use. In recent years, with the rapid development of the domestic economy, the demand for iron resources has continued to grow. my country is strengthening the development of domestic iron mines. , The import of foreign iron ore is also increasing. Among them, the banded magnetite-quartzite iron ore is a widely used industrial type in the world. Its ore is mainly composed of quartz and magnetite thin layers in interlayers. Although the iron content of this type of iron ore is low, it is With large reserves and good optional performance, it is also one of the most important mining and utilization types in my country. Therefore, i...

AI Technical Summary

Problems solved by technology

However, the disadvantage of sampling and testing is that the cost of establishing an analysis laboratory in the early stage is high and time-consuming

The timeliness of the test process is low, and the reagent consumption is large. At the same time, these chemical reagents are often toxic and corrosive, and have higher and stricter requirements on the working environment and the quality of the staff. In addition, the discharge of chemicals often pollutes the environment.

[0004] In addition, some mines are small in scale or located in remote areas, so it is not suitable to establish a laboratory, and samples are usually sent to other testing institutions for analysis, which affects the production efficiency of the mine

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