MASTERS WORK

On the topik: "Methods of preparation of fuel on base of enterprise Alexandrijacoal"

leader -  associative professor Savonova Elena Konstantinovna

     Energy of today need of Ukraine in product long-term strategic decide, which will to the significant influence of extent to the economic country development in the half I XXI in.

Add a time seriously to consider potential possibilities, which open before state significant delit  posessions brown coal and combustible schists.

Today, complex brown coal bases in crossroad and the most most further development depends on, which, insofar нагружать and clear-eyed decision for using brown coal will be accepted.

   Brown coal are the least fossilized coal сarbon by the type. Composition of organic mass brown coal different place of mining varies to a considerable extent, %: carbon - from 65 before 78, hydrogen - from 4,3 before 6,3, oxygen - from 6 before 27, nitrogen - from 0,6 before 1,7, sulphur - from 0,2 before 2,7. They highly varied on the exterior, colour their is changed from brown before black. Adding brown coal sufficiently friable, in consequence of which they easy frail.

   Brown coal Possess a high output flying (Vг > 40%) and low heat combustion of working mass of no ash coal (less than 24 МДж/kgs). They are characterized by high moisture, lowered by the contents of carbon and increased - an oxygen, not cake an coke by the remainder. Аsh And moisture brown coal in bad sorts highly great, it forms in the amount of 50% and more, (Aрmax before 34% Wрmax before 47%). The Greater contents of external ballast lowers heat combustion brown coal, which varies within 7,5 - 15,0 MDg/kgs. Density brown coal at the average is 700...800 kg/м3.

     At the combustion an brown coal give a long flame. Brown coal - low Quality fuel that is explained by significant contents in him external ballast and particularity disappear on air, done in coal triviality, as well as ability to fire like turf, brown coal do not bear distant transportation.

     On the contents working water they are divided in three following groups: B1 (contents water Wр > 40%); B2 (Wр = З0...40%) and BЗ (Wр < 30%).

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