The article addresses the implementation and application of computer-aided design and engineering (CAD/CAE) software by engineering companies in the mining sector. The importance of the computer technology application for the company innovation activities is indicated. The report deals with the current situation and challenges faced by companies in the selection, implementation and application of advanced integrated computer-aided systems.

The capability of the discrete element method (DEM) for the estimation of industrial processes was examined. Estimation evaluated for processes of segregation, grinding in a ball mill and feeding for shaft furnace. Estimated results had compared with experimental work results.

The article considers the main aspects of thermal neutralization of unutilized part of waste on the conveyor roasting machine of sintering type with one-time use of heat generated during the process for burning limestone to obtain low-grade construction lime.