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MVR vertical roller mills for cement raw material, coal and pet coke

Follow-up order from Ultratech Cement Ltd. for further vertical roller mills from Gebr. Pfeiffer for all its newly planned cement plants

Ultratech Cement Ltd., the largest cement producer in India, is starting into the future with the realisation of four more new clinker production lines. Gebr. Pfeiffer SE, Germany, and its Indian subsidiary Gebr. Pfeiffer (India) Pvt. Ltd. received an order for the delivery of several grinding plants with vertical roller mills for grinding cement raw material as well as solid fuels.

The trusting, cooperative partnership between Ultratech Cement Ltd. and Gebr. Pfeiffer is once again confirmed and expanded by this follow-up order.

The grinding of the cement raw material at the Kotputli plant will be carried out in an MVR 5000 R-4 mill. This mill can grind approx. 740 t/h to a product fineness of 1.0 % R 212 µm with a 4,800 kW drive.

Furthermore, a larger vertical roller mill of the type MVR 6000 R-6 mill will be used for raw material grinding at the Maihar plant. This mill is equipped with 6 actively redundant grinding rollers and can thus continue to be operated with 4 rollers in case of maintenance. This mill can then still produce approx. 70 % of the nominal capacity, so that the cement rotary kiln can continue to be fed with raw material.

In addition to the extremely quiet running known in the market and many other advantages, the efficient vertical roller mills of the type MVR are also characterised by grinding rollers according to the R=C principle. This means that these mills are equipped with grinding rollers that can be used, along with the appropriate power modules, for raw meal grinding as well as for cement grinding. In this way, Ultratech Cement additionally reduces the costs for spare parts stocking, because due to the identical components, such as rollers, grinding roller suspension system, roller arms in cement and raw material mills, many components can be used for both the new raw mills and the existing Pfeiffer cement mills.

The MVR mills are equipped by Gebr. Pfeiffer with GPlink, the modern system for preventive, maintenance-oriented condition monitoring. This will enable the customer to implement modern digital maintenance concepts. The MPS mills will be prepared to include such options at a later point in time.

For the grinding of approx. 45 t/h of pet coke or approx. 90 t/h of coal or any blend of the two materials, several vertical roller mills of the type MPS 3550 BK will be supplied as well. These are equipped with a standard 1300-kW gearbox and are characterised by a whole range of advantages due to their design. For example, coal and pet coke as well as any mixture of these two materials can be flexibly processed without the need for an extra-cost frequency converter.

Mr. V. Sharma (Sr. Vice President Mktg. GP India), Mr. C. Geupel (Executive Board Member GPSE), Mr. D. D. Wanjale (Managing Director GP India), Mr. S. Raj (Chief Procurement Officer Ultratech) and Mr. S. Tiwary (Head Project Mgmt. Procurement Ultratech)

The plant design and the entire customer support will be handled by the Gebr. Pfeiffer in Noida, the Indian subsidiary. The core components, such as gearboxes, grinding bowls, the grinding roller suspension system and the grinding rollers, are supplied from Europe by Gebr. Pfeiffer SE. The remaining components, such as the foundation parts, the housings, the classifiers and most of the plant components will be provided by Gebr. Pfeiffer (India) Pvt. Ltd.

The Customer Support Centre in Noida, being close to the customer, will later also provide support for the plants. This can be done in real terms by sending personnel to the plants or via remote access to the data. For this purpose, Gebr. Pfeiffer offers hardware and software solutions, which are supported by competent technical personnel, if possible in the local language.