TECHNOLOGICAL MANAGEMENT IN COAL PREPARATION ON THE BASIS OF INFORMATION TECHNOLOGIES

Abstract

Technological management at coal preparation is carried out with the purpose of a technology choice, a combination of constructive and regime parameters of concentrating devices for getting of set quality coal concentrates at their maximal output for the given structure of initial products. The decision of this problem is offered for carrying out with the help of information technologies which allow calculating variants of technological modes for acceptance of administrative technological decisions. For this purpose the mathematical model of coal preparation process as complex system is developed. It includes a coal composition, their compatibilities picked up by a principle at joint processing. Distribution of coal components is offered to describe by a square-law spline, and actual granulometric and fractional structure calculation to make for current ash level on the basis of the information available in a data base about earlier acting coal from the given mine or coal - analogue. The choice of separation density for each machine class or coal at their separate dressing is carried out on the basis of theorem Reinhardt analytically with use of fraction ash-density dependences for each of coal and their composition. The developed mathematical model of the technological coal composition dressing circuit is based on balance of each narrow size and density fraction in view of probability of its transition in this or that product, determined by the separation characteristic of the concentrating device. This model was a basis for drawing up of algorithm and development of computer calculation programs of qualitative and quantity indicator for rational mode variants.