Mineral processing experiment process understanding

According to the purpose of the research, the ore dressing test can be divided into three types: optional test, process test and single mineral technology test. According to the test scale, it can be divided into laboratory test, semi-industrial test and industrial test. In order to clarify the requirements of the ore dressing test and the convenience of the description, the above two classifications are summarized, and the types of ore dressing tests are divided into optional tests, laboratory small-scale test, laboratory extended continuous test, semi-industrial test, industrial test and single dressing technology. Six tests were conducted.

(1) Optional test. Generally completed by the geological exploration department. In the stages of geological survey, preliminary survey and detailed survey, the depth of optional test research should be gradually improved and deepened. The optional test focuses on the research and exploration of the differences in the nature and selectivity of various types and grades of ore, the basic beneficiation methods and the possible mineral processing indicators, the difficulty of eliminating harmful impurities, and the possibility of comprehensive recovery of the generated fractions. The content and depth of the experimental study should be able to determine whether the exploration of the ore used in the exploration is technically feasible and economically reasonable, and can provide a basis for the formulation of industrial indicators and mineral deposit evaluation. The optional test is carried out on a diverticulum device or a small test facility and is generally only used for mineral deposit evaluation.

(2) Laboratory small-scale process test. The laboratory small-scale process test is performed after the completion of the ore geological exploration, before the feasibility study or preliminary design. It focuses on the ore mineral characteristics and beneficiation process characteristics, beneficiation methods, process structure, mineral processing indicators, process conditions and products (including some intermediate products) for experimental research and analysis, and should be tested in comparison with two or more programs. The content and depth of the experimental study. Generally, it should be able to meet the requirements of preliminary formulation of process flow and product plan, selection of main process equipment and comparison of design schemes in the design work.

Because the small-scale laboratory test in the laboratory is small in scale, small in sample materials, large in flexibility, and low in manpower and material resources, it is allowed to carry out extensive exploration in a wide range, and because the sample is easy to mix, the batch operation conditions are easy. Control is therefore the most basic test of each test. However, it is carried out on small non-continuous (or partially continuous) test equipment in the laboratory. The degree of simulation and the reliability of the test results are superior to the optional test, but not as long as the laboratory expands the continuous test.