In one fell swoop, LOESCHE has sold 32 coal mills to India and gained a new end customer in the process. The large vertical roller mills (VRM), with two rollers each and a performance of 79.2 t/h or 75.6 t/h, will be used in the coal-fired power plants “Super Thermal Power Station” in Jawaharpur and “Obra-C” in the Sonebhadra district of Uttar Pradesh state in North India. At both locations, the end customer Uttar Pradesh Rajya Vidyut Utpadan Nigam Limited (UPRVUNL) will operate four power station blocks from 2020/21 onwards, with 660 MW of power each. Delivery of the LOESCHE mills should be made by Autumn 2019 and will include electric drives, slide gates, instrumentation and junction boxes.
Energy production in India is currently primarily dependent on coal power plants. Experts predict an average increase of 18 GW per year until 2020 in coal power plant output. The 32 coal mills for the new UPRVUNL power plant are distinguished by their modular construction, which has been tried and tested by LOESCHE in the cement industry. The principle of these grinding plants is based on a horizontal grinding table with segmented grinding plates and conical rollers (M) which are arranged at a 15° angle to the grinding table. The hydraulic swinging device for the rollers (M) ensures a simple and fast change of grinding parts. LOESCHE mills guarantee consistent throughput and fineness product quality using an efficient hydraulics system to regulate grinding pressure, and a speedcontrolled grinding table and high efficiency classifiers.