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Reserves of Kuznetsk Basin coking coal are analyzed, in terms of rank composition and scope for coke production. The technological value of the coal is evaluated by the OOO VNITs Ugol method, in comparison with the rankings provided by State Standard GOST 25543-88.
It is shown that the inhomogeneity of coal mixtures (enrichment-plant concentrates) differing in vitrinite reflection coefficient and the content of clinkering components (i.e., in the deviation of these parameters S
) may only be objectively estimated on the basis of refractogram...
Parameters characterizing the structural strength K
and physical strength K
ms of coal are proposed. These parameters are suitable for estimating the change in state of the coal under the mechanical action of external forces. Their ratio permits ongoing determination of the mechanical...
The composition and physicochemical properties of Gorlovsk Basin anthracite are studied, with a view to expanding its metallurgical use. In industrial tests, anthracite is employed in smelting hot metal in cupola furnaces, in the production of carbonized products and briquets, in ferroalloy...
A model is developed for predicting the postreactive strength CSR and reactivity CRI of coke. The model adequately reflects the dependence of these characteristics on the chemical and petrographic parameters of the coal batch, taking account of the batch preparation and coking period, as well as...
The fundamental principles in the production of coke and semicoke characterized by high reactivity and electrical resistivity and developed pore structure are considered. The laws governing the formation of these properties are established as a function of the initial coal components and the...
An efficient production technology for unroasted briquets from lignite semicoke has been developed; the lignite semicoke is derived from Kansko-Achinsk coal. The briquetting conditions are described. In terms of strength and physicochemical properties, the semicoke briquets are suitable for use...
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