Process mineralogy research, mainly for the provision of information for geology, mineral processing (including smelting). The accuracy of the data directly affects the testing process and quality of these tasks. However, the actual number of samples examined for ore properties, whether compared to the amount of ore in the ore dressing test or the deposits in nature, is small and insignificant. Therefore, for the part of the sample for process mineralogy examination, sufficient representativeness is required. The representativeness is not good, and even if the specific observation work is accurate and meticulous, the value of the process mineralogical data provided will not be very high. In order to ensure the representativeness of the sample, there are mainly two ways to obtain samples according to the purpose and content of the research. One is to extract from the sorted products and the test mineral samples; the other is to take geological specimens at the processing sampling points.

The use of ore samples for ore dressing research is a very tedious and meticulous work. It is usually organized by the construction unit, and the geology, ore dressing test research, and design units participate in the joint research. The experimental research and design unit propose technical requirements, and the geological department is responsible for preparing the sampling design.

Before sampling, the mineral composition, structure, structure, embedded grain size, chemical composition, beneficial and harmful element occurrence state, ore physical and technical characteristics, mining methods, mining plans and technical requirements of the ore deposit, ore body, and ore must be Must be basically clear. On this basis, a reasonable sampling plan can be developed to obtain a fully representative sample. To this end, the whole process before the ore is transported into the mine silo should be carefully investigated to find out the various factors affecting the representativeness of the ore sample, so as to be solved one by one in the sampling process.

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