Abstract
The results of lixiviation-based recycling of ore mill tailings in the high-speed disintegrator are presented. The regularities of the change in properties are defined, as well as control directions over them via alteration of variable processing factors are defined. The model to determine the economic effect of the use of solidifying mixes based on mill tailings is proposed. The model of perfectly mixing reactor cascade in continuous operating conditions is developed to describe activation on minerals in the disintegrator.
Highlights
Over the last two centuries, the issue of removing mill tailings of excavated mineral resources from the ground has become urgent on a global level, and made other vital tasks of the mankind less important [1]
The process of treatment in the disintegrator is described by the model of perfectly mixing reactor cascade in conditions of continuous operation: Ак = А + × А × к × where А – the initial activity of material; Ак – the activity of material in the following phase of processing; – the speed of changing activity of material; к – the time of material processing in a single cycle; – the number of processing cycles
The efficiency of physical-mechanical processes taking place in the course of mechanochemical technology is specified via comparing strength factors of mixes and extraction of metals in different operating conditions of the disintegrator
Summary
Over the last two centuries, the issue of removing mill tailings of excavated mineral resources from the ground has become urgent on a global level, and made other vital tasks of the mankind less important [1]. Developed methods for study on materials in order to control them are considered to be the reasons for practice lagging behind the science in this important field. As the competition in mining industry gets stronger, toughening the requirements for excavated mineral resources, creating artificial masses made of solidifying mixes gets an integral part of underground field mining of commercial minerals. Cement is used as a binder in the basic variant of their preparation, and excavated natural materials – sand and gravel mix as a nonreactive aggregate
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