The mineralogical composition of the filler and its chemical characteristics
depend on coal combustion technology, fuel fineness and its chemical and
mineralogical composition. Micrographs source component (coal) and slag waste
obtained after the burning conditions DTEK "Krivoy Rog TPP" presented in Figure 2.
Figure 2. Photomicrographs of coal and slag waste in terms
of DTEK "Krivoy Rog TPP" (a - coal, b - ash and slag waste)
As a binder for connecting the coal fractions in the production of fuel pellets using
coal tar. Coal tar, a viscous black liquid with a characteristic phenolic odor; coking
coal product (yield 3.5% by weight of the coal charge).
The composition of coal tar is about 10 thousand. Compounds of which were
isolated and identified more than 480 (50% of the total weight). Also, it is composed
of aromatic hydrocarbons, phenols, sulfur compounds and other unsaturated
hydrocarbons.
Technical analysis of primary and secondary carbon. Using technical analysis
to determine coal and oil shale ash content, moisture content, sulfur and phosphorus,
yield volatile substances in the combustible mass and calorific value characteristics
non-volatile solid residue. All tests carried out on analytical samples of coal and shale,
and the moisture content of the fuel work - in laboratory tests.
Conversion of elemental composition, volatile substances and heat of combustion
of coal (except shale) when moving to a different weight ratio is carried out according
to formulas.
In terms of elemental composition and heat of combustion of oil shale ash and
should be replaced by A + C02 to the appropriate weight slate.
Solid fuel consists of combustible or organic matter and ballast, which includes
moisture and minerals that give after combustion ash. Organic mass consumption -
very complex in composition deep transformation of plant material that includes
carbon, hydrogen, oxygen, nitrogen and sulfur. One of the most important
characteristics of solid fuels is way out of his volatile matter and nature of non-volatile
residue. The structure consists of mineral impurities mainly carbonates, silicates,
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