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Mechanical activation of micronized coal: …
Among novel options in clean coal technologies, the use of microground (micronized) coal has been considered as one of the prospective routes to overcome various shortcomings in the conventional pulverized coal combustion that prevail worldwide in large coal-fired power plants and various industrial and heating installations.
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Efficiency of technology of mechanically activated …
1-6-2019 · The technology is aimed at increasing coal reactivity and can be used to replace high-reactive expensive and difficult-to-obtain fuel oil for ignition and lighting of pulverized coal boilers of thermal power plants (TPP) using mechanically activated microground coal.
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We report on the first successful realization of self-sustained (autothermal) combustion of mechanically activated micronized coal in a pilot-scale installation of a nominal capacity of 5 MW.The thermogravimetric analysis (TGA) of the thermal decomposition of coal milled in several types of mills showed that a new rotating impact disintegrator (DIS) decreases the overall coal activation ...
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We present computational modeling of autothermal combustion of mechanically-activated microground coal in a 5 MW pilot-scale combustor that complements the experiments of Burdukov et al. [7]. The aim was to verify the applicability of the comprehensive model of pulverized coal combustion to microground coal and to validate the submodel of the coal reactivity enhancement.
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The preliminary experiment in a pilot-scale 1 MW rig, followed by more detailed experimental and numerical investigations in a cylindrical swirl combustor of 5 MW thermal power, confirmed the earlier visual observations and measurements that the mechanically disintegrated micro-ground coal behaves much like heavy oil.
Efficiency of technology of mechanically activated …
PDF | On Jun 1, 2019, G V Chernova and others published Efficiency of technology of mechanically activated coal for ignition and lighting of pulverized coal boilers | Find, read and cite all the ...
Mechanical activation of micronized coal ... - …
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The group of inventions relates to thermal power engineering and pertains to technology for the transport of, and the separate and combined combustion of mechanically activated micro-ground coal and standard dust-preparation system coal in a vortex ignition burner while igniting a coal-dust boiler and stabilizing combustion, with the aim of replacing expensive mazut or natural gas.
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