Improving the process of coal extraction based on the parameter optimization of mining equipment

Abstract

The aim of this paper is to develop and validate methods of choosing the means of the mining face mechanization. This paper analyses existing methods of optimizing processes in mining. It was established that the effectiveness of the performance map of coal field is formed by a group of technological, operational, and economic parameters which can be represented as a vector of solutions. To find the optimal solution, it was suggested to use network models and graphs. The essence of the technique is to represent the input and output (production level, prime cost) resource flows in an organized structure. Regularities of forming technological schemes of coalfield operation with a given level of performance, taking into account the relationship between technological parameters of mining face, operational parameters of the stoping equipment, technical and economic performance are defined. We developed the system for decision-making support, which allows optimizing operational parameters, reducing the production prime cost, and selecting the structure of the mechanized complex of stoping equipment with a specified level of performance. This paper describes approaches that can be used at the design stage of mining face and in the process of operation.

State support of stability in Coal-Donbas regions

“…Таким чином, державна підтримка вуглепромислових регіонів Донбасу, де більшість населення пов'язана з роботою вугільних шахт, буде зводиться до досягнення повної зайнятості населення. Причому, через нехватку бюджетних коштів потрібне саме адресне інвестування [6,7], тобто вибір відповідного регіону, оцінка ступеню його занедбання, а також перспективності шахтного фонду [8,9] з точки зору якості запасів вугілля [10].…”

Calculation of Load Diagrams and Static Characteristics of Multimotor Electric Drive Systems using the Methods of Equivalent Forces and Reduced Moments

“…A literature review showed that the main direction of current developments in the complex mechanization of tunneling and mining operations in the diamond-mining industry is the introduction of combined methods for carrying out work (Sutresman et al, 2017;Hrinov and Khorolskyi, 2018;Cehlar et al, 2019). This determines the relevance and practical significance of the presented research.…”

Research into optimization model for balancing the technological flows at mining enterprises

“…There is also the subjectivity problem at the assessment stage. Besides, the correlation between the prevailing and unacceptable decision is not always proportional [10]. The above group of approaches [2][3][4][5][6][7][8][9] is effective at the stage of designing, but more "sensitive" tools should be used for existing enterprises.…”

“…Optimization approaches are divided, first of all, in accordance with the objective function of the criteria, into mathematical programming methods, which are differentiated with respect to the decision-making procedure into linear [11], quadratic [12], integer [13], geometric [14], stochastic [15], and dynamic [16] programming; deterministic models, probabilistic models. If the methods of mathematical programming answer to the question which solution is optimal, then deterministic models demonstrate the correlation between the parameters, forming the method of displaying -whether they are correlation relations [17 -20] or graphical [10,21]. Probabilistic models are based on the concept of "reliability" [20], that is, the ability of the system to reproduce a specified level of productivity over time in accordance with the accepted restrictions.…”