| Article |
|---|
| Article name |
Development and Preliminary Testing of a New Pilot Industrial Model of the MDR Rotary Mill |
| Authors |
Vinokurov V.R. candidate of technical sciences, senior researcher, vaviro@mail.ru |
| Bibliographic description |
Matveev A. I., Vinokurov V. R. Development and Preliminary Testing of a New Pilot Industrial Model of the MDR Rotary Mill // Transbaikal State University Journal. 2025. Vol. 31, no. 1. P. 60–71. DOI: 10.21209/2227-9245-2025-31-1-60-71 |
| Category |
Subsoil Use, Mining Sciences |
| DOI |
622.73 |
| DOI |
10.21209/2227-9245-2025-31-1-60-71 |
| Article type |
Original article |
| Annotation |
Preparation of ores for enrichment is one of the most energy-intensive and costly processes in the technology of mineral processing. In this regard, the improvement and development of domestic highly efficient grinding equipment is a very urgent task. The object of the research is drum mills for dry grinding of ore material. The objectives of the work are to develop a new highly efficient grinding method and the design of a grinding apparatus for its implementation. To achieve the goal of the study, an analysis of existing grinding methods and designs of autogenous grinding drum mills has been carried out and, taking into account their shortcomings, a new grinding method and a mill design for its implementation is developed and patented, a pilot industrial sample of the developed mill is also designed and manufactured, preliminary experimental tests are carried out. The methodology and methods of the study are based on the analysis of the granulometric composition of the grinding products to determine the efficiency of the rotor mill. The preliminary technological tests of the new pilot industrial model of the MDR rotary mill experimentally determined the main rational operating parameters affecting the efficiency of periodic drum mills (rational feed loading mass and grinding period time). At the same time, a comparative analysis of the obtained experimental grinding results established the accumulation of a critical volume of sludge formed during the grinding process and negatively affecting the grinding efficiency. The solution to this problem is possible due to the timely removal of the formed sludge, which can be carried out in the MDR mill in the continuous version. It should be noted that the implementation and use of a continuous mill of large sizes will achieve higher efficiency, productivity and versatility. |
| Key words |
development, rotary mill, design, destruction, ore materials, pilot-industrial sample, experimental studies, process, granulometric composition, grinding efficiency |
| Article information |
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| References |
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