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ISSN 0536-1028 (Print)              ISSN 2686-9853 (Online)  

Anferov B. A., Kuznetsova L. V. – The Federal Research Center of Coal and Coal Chemistry, the Siberian Branch
of RAS, Kemerovo, the Russian Federation. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
The technologies of selective excavation of coal seams, embedded in traditional development systems, are considered;
they help to preserve the natural quality of coal from various layers by excluding preliminary loosening and dilution,
separate formation and delivery to the surface of homogeneous in quality of several flows of rock mass, the possibility of
carrying out separate processing of coals of different quality, creation of several production lines "extraction–processing",
working simultaneously. The existing experience of selective excavation for systems of development by short and long
wall faces with the use of modern means of mechanization is generalized. Proposed: layout of the continuous miner,
which provides for a separate excavation of seam layers of a complex structure in one pass, schemes for the formation
of two or more flows of rock mass of different quality due to the maintenance of technological or organizational pauses
with the use of means and methods of communication. In the direction of the separate processing of flows of rock mass
of various quality, technical solutions have been developed for the production of hydrofluoric acid out of power generating
coal with industrial content of platinum as raw material for the subsequent production of platinum, and from coals with
an industrial content of osmium – sodium perosmate as a raw material for the subsequent reduction of osmium to metal.
Key words: coal deposit; integrated development; valuable chemical elements; selective excavation; short face; long wall
face; separation of rock mass flows.
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