Development of Top Coal Caving Control System
S. A. Kizilov1, M. S. Nikitenko1, A. Yu. Ignatova2
1Federal Research Center for Coal and Coal Chemistry, Kemerovo, Russia
2Gorbachev Kuzbass State Technical University, Kemerovo, Russia
Keywords: Powered roof support, support unit, swinging feeder, longwall top coal caving, machine vision, gamma radiation, dirt, rock mass analysis, automated control system
Abstract
The authors present the results of development of a powered roof support control system included in the machine group of top coal caving to a longwall conveyor. The methods of measurement of the conveyor loading by a swinging feeder, recording of changes in the quantity of dirt in total rock mass, as well as the integration of the newly developed system in the powered roof support control are described. For determining loading of the longwall conveyor by the swinging feeder, it is proposed to use the algorithms and methods of machine vision, added with a camera of projection of light marker net on the rock mass surface. The method of detection of variation in composition of rock flow is proposed to be implemented through automated measurement of gamma radiation in rock flow and comparison of the measurement with the control value. The concept of a versatile adapter is developed, and the control system architecture and automated operation algorithm are presented for the longwall top coal caving technology.
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