Cement and Energy

• Surface Miner provides scope of selecti ve mining and hence gives greater opportunity for exploiting the reserve where contamination is more and where conventional mining is not possible. • The elimination of drilling and blasting provides an environmental friendly mining operations with utmost safety for the mine operators. The surface miner with all the above advantages will tremendously reduce energy consumption and the cost of production and provide an environmental friendly and safe mining. Madras Cements Ltd., has got rich experience in using the Wirtgen make Surface Miners for Kankar and Limestone deposit. The first Surface Miner for [Courtesy : Madras Cements Ltd./ Surface miner in action Kankar mining is in operation since 4 years and the peformance is excellent. Recently for the new project at Alathiyur Village, two SM 2100 Surface Miners have been purchased for limestone mining. The machines are performing well and are giving around 200 TPH of output. ENERGY SAVING THROUGH FAN EFFICIENCY IMPROVEMENT The reduction in thermal and electrical energy consumption levels in the recent past has been the outcome of concerted efforts made in this direction. The energy savings have accrued mainly from :- Upgradation of process by retrofitting and adoption of energy efficient equipment. Setting up in-house energy conservation and technical cells. Schemes of National Awards for energy efficiency for creating energy consciousness and motivation for competitive improvement. Upgradation of process by retrofitting and adoption of energy efficient equipment played a vi tal role in achieving remarkable energy saving. Under this, various improvements have been carried out in ESP, variable speed controllers, closed circuiting of mills. mechanical conveying I transportation systems, high efficiency separators and fans, burners and cooler modifications, etc. 2