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Shree Cement orders five more Pfeiffer VRMs

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World Cement,

Shree Cement has placed a massive order with Gebr. Pfeiffer SE for five vertical roller mills to grind cement, raw materials and petcoke/coal.

Expanding capacity

Shree Cement is expanding is capacity across India by adding a greenfield plant in Chhattisgarh and a cement grinding unit in Bihar to better serve the east Indian market. The order encompasses three MVR 6000 C-6 cement mills each with an installed drive power of 6700 kW, an MVR 6000 R-6 raw mill, also with 6700 kW drive power, and an MPS 3070 BK suitable for grinding petcoke and/or coal.

Low maintenance

The mill’s feature Gebr Pfeiffer’s ‘active redundancy’ concept, meaning the mill can be operated even when one or two of its rollers are removed for maintenance. Components of the tension system, the grinding roller bearings, as well as the drive are designed to be used in both the raw mill and the cement mills, enabling the plant to keep a pool of shared spare parts.

Flexible grinding

Shree Cement is using alternative raw materials such as flyash to reduce the CO2 emissions connected with cement production. The plants planned for cement grinding – equipped with the MVR 6000 C-6 – are intended to alternately produce 270 – 300 tph of OPC ground to a Blaine fineness of 3100 – 3500 cm2/g, or 270 – 300 tph of Portland Pozzolana Cement (PPC) containing 35% flyash and ground to a product fineness of 3500 – 3800 cm2/g, or 180 tph ground granulated blastfurnace slag (GGBS) with a fineness of 4500 cm2/g.

Raw mill

The new plant at Raipur will have an MVR 6000 R-6 for raw material grinding as well as the cement mill. The raw mill features a 6700 kW drive and is designed to grind 500 tph to a fineness of 2% residue on the 212 µm screen. The material is classified in the integrated high-efficiency SLS B classifier. Moisture in the feed material will be dried in the mill during grinding using waste gas from the kiln.

The plant will use petcoke ground to 1 – 2% R 90 µm in the MPS 3070 BK coal mill, equipped with a 720 kW drive and an integrated high-efficiency SLS BK classifier. The mills and grinding plants are designed to use little external heat, which suits the plants desire to use recovered heat as a means to improve energy efficiency.

European and Indian teamwork

The core components for the mills will be supplied from Europe, while Gebr. Pfeiffer’s Indian subsidiary will provide components such as housing of the mills and classifiers, the steel foundation parts, as well as the interior parts of the classifiers. Furthermore, the Indian subsidiary will design the plant layout and advise Shree Cement on the equipment they need to procure.

This mega order comes just three months after the company placed an order for the hundredth Pfeiffer mill in India. This contract brings the number of Pfeiffer mills owned by Shree Cement to 24.

Adapted from press release by

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