Controls ways of the transportation capacity variation for the canvas conveyer
Florin Dumitru Popescu · 2008
Mining transportation is an important element of the economic efficiency rising in mining sector, because the transportation average included in the cost of production for one tone of extracted coal, represents approximately half of it. In order to control the transportation system and to have enough information about the below-ground and the above-ground manufacturing process, it is necessary to keep a close look on the transported output through the canvas conveyer. The permanent measurement of the mining material volume controlled by continuous transporting equipment machines implies knowing its transversal section profile at a given moment and the instantaneous velocity of the transporting belt conveyor. The approximation of the material profile section is done by measuring the level of the transporting material in different points and afterwards by approximating the corresponding curve through methods of numerical interpolation. In this paper two approximation (interpolation) methods are presented: Lagrange and the spline functions method. The present study wants to solve the problem by using some unconventional methods, in order to assure reliability, precision, as well as the possibility of integrating it into the mining monitoring system. The constant measurement of the cross section of the transported material through the canvas conveyer, as well as of the belt speed, leads to the determination of the transported volume, and depending on it, knowing the average density, you can determine the output.