Annual Report,2009 - Directorate General of Mines Safety

DGMS Annual Report,2009
2.4 Technical Developments
During the year 2009, 11.97% of the total production came from underground
workings and 88.03% of the total production came from opencast mines. As far as
average daily employment was concerned 50% were employed belowground, 21%
were employed in opencast workings and the remaining 29% were employed for other
surface operations.
During the 2009, 1320 Excavators, 5324 dumpers capacity varying from 35T to 170T,
920 drills of 50 mm to 250 mm, 40 draglines were used in opencast mines.
TABLE:27
TREND IN USE OF HEAVY EARTH MOVING MACHINERY
IN OPENCAST COAL MINES
Year Shovels Draglines Drills Dumpers Others HP of the machinery
1990 787 41 703 3663 1885 2,711,279
1991 864 41 703 3846 1746 2,972,990
1992 892 47 829 4223 2112 3,227,528
1993 910 44 802 4385 1952 3,409,140
1994 946 43 822 4437 1946 3,448,234
1995 956 42 871 4291 2116 3,639,816
1996 961 59 864 4038 1856 3,436,437
1997 1017 42 913 4399 2177 3,703,276
1998 1106 41 918 4520 2279 3,826,094
1999 1216 49 962 4776 2372 4,058,489
2000 1143 43 969 4602 2333 3,938,986
2001 1172 42 977 4666 2304 3,965,541
2002 1159 41 972 4721 2136 3,864,244
2003 1136 39 1003 4576 2163 4,095,742
2004 1135 45 978 4516 2367 3,995,550
2005 1073 34 922 4553 2085 4,035,171
2006 1088 28 861 4391 2006 3,798,259
2007 1188 33 1023 4634 2569 4,249,869
2008 1247 48 1018 4994 2779 4,479,969
2009* 1320 40 920 5324 2750 4,588,696
*Provisional
(a) Number of machines used in underground coal mines of different coal companies
are as follows:
Table-28 Number of machines used in underground coal mines during 2009
Name of Road header/ SDL LHD Continuous Coal Other
Company Dint header
Miners haulers
BCCL 4 125 6 0 0 0
ECL 1 128 23 1 0 1
CCL 0 19 6 0 0 0
SECL 0 224 147 2 0 1
WCL 0 82 118 2 2 1
MCL 0 21 36 0 0 0
NECL 0 0 0 0 0 5
TATA 0 34 0 0 0 0
SCCL 6 121 37 2 0 3
SAIL 2 0 0 0 0 2
TOTAL 13 754 373 7 2 13
A-38