JUSTIFICATION OF THE CYCLIC-FLOW TECHNOLOGY PARAMETERS BY THE SIMULATION MODELING METHOD IN THE ANYLOGIC ENVIRONMENT

A review of the scientific and methodological literature on the introduction of cyclic flow technology in the conditions of adjusting the strategy for the development of mineral de-posits by the open method is carried out. An economic and mathematical model of assessing of a cyclic flow technology implementing feasibility has been developed. A simulation model for evaluating the effectiveness of the stages of the introduction of cyclic-flow technology is de-signed.

Rationale for mobile crushing plants design methodology

Introduction. Modern mining enterprises in Russia and abroad use opencast mining on a wide scale making the best use of the cyclic-flow technology with mobile crushing plants (PDPU) of various designs. Research aim is to substantiate the methodology of designing mobile crushing plants. Methodology. The work of designers and constructors in choosing the type of PDPU layout scheme and elements of its design, as well as in improving the installation as a whole, is difficult due to the lack of a unified methodological approach to the design of mobile crushing plants in a modular (block) design. Multiple layout solutions in mobile crushing plants design required the formulation of general principles for such plants. PDPU structures were analyzed in the article, and the optimal layout of the plant in a modular design was substantiated as a part of the open-pit transport scheme. Results. The research, including the research carried out in IM UB RAS, made it possible to develop initial requirements for such plants design. In accordance with the requirements the designers of the Uralmash Machine-Building Corporation developed the technical design of the PDPU-2000 mobile unit with a capacity of 2000 m3/ h, consisting of three modules based on the cone crusher KKD 1500/180. Conclusions. Two and three-module plants equipped with large-sized jaw and cone crushers are promising modular PDPU designs currently being developed. The transfer of installation modules to a new location is carried out using a multi-purpose tracked conveyor with a lifting capacity of up to 1000 tons. Recently, there has been an increased interest in this type of PDPU, as evidenced by the large number of patented technical solutions.

Chrysotile asbestos ― raw materials of the construction industry from deep quarries

A ladle belt conveyor with increased traction ability is proposed at the request of Kostanay Minerals JSC. A geometric diagram of the conveyor route for cyclic-flow technology with the transportation of rock mass steeply falling conveyors in the contours of the quarry of the first stage of the Dzhetygara chrysotile deposit is given. The calculation of the geometric dimensions of individual sections of the conveyor is performed. The parameters of the transported material, the route and the bucket belt conveyor itself are determined.