Raw coal production in the country from underground and opencast mines during 2013-14 in CIL and its subsidiaries and in SCCL was 50.47 Mt as is indicated in Table 1.The following steps have been taken by CIL to enhance underground production (i) Gradual conversion of manual underground mines into semi-mechanized technology like load haul dump/side discharge loader with universal drilling machine (UDM). (ii) Mass production technology i.e. use of continuous miner and longwall technology, development in transport infrastructure, (iii) Deployment of 7 continuous miners with a capacity of about 2.835 Mty. Further, project report for 20 mines has been approved for deployment of 25 continuous miners with total capacity of 11.385 Mty. (iv) Orders have been issued for operating five mines with long-wall technology.
展开▼
