Cement, Energy & Environment

( \ X ordered in June 2012 has brought clinkerisation capacity at single location (Beawar & RAS) to nearly 12 million tonnes per year. Shree Cement is now planning to spread its activities over the whole of India. This deal will see the 19 1 h Pfeiffer Vertical Roller Mill to Shree Cement, One of Gebr. Pfeiffer's Key Customers throughout the World . This 100 1 h Pfeiffer mill for India will be a State of Art MVR 6000 C-6 which indorporates the latest technological developments of Pfeiffer vertical roller mills. The outstanding feature of the MVR mill is the innovative "active redundancy" concept. The mill, which will come equipped with a modular number of grindings rollers, in this case 6 rollers , can be operated even when one or two rollers must be removed from the grinding process because of maintenance. Since Year 2000, the business activities of Gebr. Pfeiffer SE, a 148 years old family-owned company with its headquarters in Kaiserslautern, Germany, have been supported by Gebr. Pfeiffer (India), a 100 per cent subsidiary of Gebr. Pfeiffer SE, located in Naida, UP. Among the main reasons Shree Cement opted for a vertical roller mill from Gebr. Pfeiffer were the low specific investment cost and energy consumption achieved by the MVR mill. In addition, the mill offers the possibility not only to grind and simultaneously dry and classify the material in one and the same machine, but also to process very moist feed materials like for instance granulated blast-furnace slag. The MVR 6000 C-6 grinding plant is designed to produce alternately 270 Uh of OPC at a product fineness of 3500 cm 2 /g ace. to Blaine or 180 Uh of ground granulated blast-furnace slag (GGBFS) at a product fineness of 4500 cm 2 /g ace. to Blaine. Depending on its customers' changing needs Shree Cement will be able to mix the two materials together, producing batch-wise one product (Portland slag cement). The plant also offers the possibility of flexibly producing various cement types and qualities. The mill with an installed drive power of 6300 kW will feature one of the most powerful drives combined with vertical roller mills. Courtesy: Indian Cement Review, Nov. 2012, P54. Energy Efficiency &Conservation A ' 0W CARBON ECONOMY IS 0 > Energy efficiency norms· have worked in case of consumer appliances and buildings. We ne~d to go further. The development agenda of the country seeks to accelerate and sustain the economic growth rate of 8-9 per cent from now on through 2031 -32. This would inevitably require an increase in energy use by almost 6 times from the present level. Such massive increases in energy supply in a world that is increasing ly becoming constrained by climate change concerns led by energy related carbon emissions will not be easy. Further, the primary energy sources for fuelling the growth trajectory will largely be based on fossil fuel. Apart from climate change concerns, availability and cost of fossil fuels will continue to be a challenge, posing a threat to India's energy security. Low carbon growth strategies by adoption of energy efficiency across all sectors are necessary to hedge against this as much as possible. Future strategy The performance of the country on the energy efficiency front during the last few years provides the hope that this Is possible. The recently concluded XI Plan has set the tone for treating energy efficiency as a resource in the planning process. The Government set a target of 5 per cent reduction in energy consumption by verifiable actfons related to energy efficiency, equivalent to 10,000 MW of avoided capacity addition. The Ministry of Power and the Bureau of Energy Efficiency (BEE) have reportedly exceeded the target and have achieved around 12,000 MW of avoided capacity by implementation of various programmes. These interventions prioritized sectors where the scope of efficiency enhancements is large. 9