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Investigation on Material Input of Raw Coal Production
Abstract:
Taking raw coal of China as the investigation object, MIPS method was used to calculate the material input of raw coal in the period of 1990~2008. Numerical calculation indicated that, in the production of raw coal, water input accounted for above 72% of the total material input, and solid non-biological material input accounted for about 25%, while air input accounted for only 0.4%. As for the whole country, the average input coefficients for water, solid non-biological material, and air were 6.13 t/t, 2.13 t/t, and 0.03 t/t, respectively; the average input coefficients for water, solid non-biological material, and air were 6.07 t/t, 2.26 t/t, and 0.03 t/t, respectively, for the state-owned major coal mines; in the local mine, the average input coefficients for water, solid non-biological material, and air were 6.17 t/t, 2.03 t/t, and 0.03 t/t, respectively. The raw coal material input as a whole appeared to be rising.
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2427-2431
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September 2013
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© 2013 Trans Tech Publications Ltd. All Rights Reserved
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