Flender/Flender Gear Units/Bevel-helical gear units B4
the plant with low electrical energy tariff, the mills must be started and stopped. This means that it is necessary

to ensure smooth and efficient start-up, as this will reduce the energy consumption per ton of grinded material. The MCO

can oper - ate as standalone system or fully integrated Cemat PCS7 application in PLCs. The system is especially helpful

for night-shift operators when there are only few operators staffing the central control room. Waste-heat recovery power generation Hot process

gases produced from kiln contain thermal energy, which is normally used for other process areas such as the raw mill or the coal mill. Although this allows energy to be saved, the utilization of excess thermal energy can still be optimized. The excess energy can be converted into electrical energy. The gases from the preheater tower and from the cooling area are used to generate high-pressure steam in boilers. steam turbine drives synchronous generator, which in turn feeds electrical energy back into the medium-voltage system of the cement plant. Optimum results can only be achieved based on tailor-made system, which also takes into consider - ation any future cement plant modifica - tions. Siemens provides ongoing assis - tance to cement manufacturers in identifying what their plants require. Only through continuous energy saving solutions can cement plants be opti-mized on sustainable basis. 3 Authors: Maarten Holland, maarten.holland Siemens Flender siemens HB series gearbox Karen Chong, karen.chong Siemens Flender siemens HB series gearbox High efficiency main kiln-driveCement | MineralsFocus 2/2 he owner and founder of Ma-estro Srl, technology company based in northern Italy, is Giorgio Manara. In fact, quarrying runs in his blood his family owns quarry in Pilcante di Ala, in the Trento province. So Manara knows the market mecha- nisms and constraints facing quarry owners first hand. An important aspect is to have functioning system that monitors and optimizes all processes in quar