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The application of coal interface detection techniques for robotized mining machines.

Dobroski-H Jr.
Proc the 9th WVU Int'l Mining Electrotechnology Conf 1988 :1-6
One major objective of U.S. Bureau of Mines research is to increase and improve mining efficiency by investigating the feasibility of a robotized mining system. Such a system holds great promise for increased productivity necessary to achieve advantages in the world coal markets. However, for a robotized system to be effective, it must be able to immediately identify the interface between coal and adjacent strata, no matter how complex the interface may be, or how similar the coal may be to the adjacent strata. Extensive research in coal interface detection (cid) techniques has already been done, but little of this research has been applied. With the exception of natural gamma devices, the various cid techniques have not even been applied to longwalls, which operate in a well-defined structured manner in the best geologies available. Continuous mining methods represent even greater challenges. The operating methods and geologic conditions of current continuous mining sections are different from those found in the longwall sections. A different approach is required. This paper addresses the cid problem as it applies to robotized mining machines. A brief review of prior cid research is given. Comparisons are made between longwall cid and continuous miner cid. In-mine data and information are presented concerning the geologic nature of the interface and the fundamental parameters of the materials that comprise it. It is the identification of these fundamental parameters that holds the key to a general cid solution. Some possible schemes for a robotized mining mach
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OP 42-89
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Proc. the 9th WVU Int'l Mining Electrotechnology Conf., 1988, PP. 223-228