New slag mill for Cementownia in Poland

Gebr. Pfeiffer SE was awarded the contract to supply a vertical roller mill of the type MPS 3070 BC for grinding 46 t/h of blast-furnace slag for the Odra works situated in Opole/Poland. The Odra cement works was the only one out of originally nine situated around Opole to have survived. In 2011, it could celebrate its 100th year of existence. This could only be achieved by continuously improving its products and investing in modernisation of its cement works.

After Poland had opened up its economy almost 20 years ago, the Miebach Group, headquartered in Erwitte/Westphalia and experienced in plant technology and cement production, invested in this works. About 300 staff annually produce about 750 000 t of cement and about 360 000 t of clinker.

The slag ground to 3800 cm²/ g Blaine is intended to be used as an additive to the cement. The ordered vertical mill features a main drive with an output of 1350 kW for a production rate of 46 t/h. Exhaust gases produced by the clinker cooler allow the slag to be dried from 9 % feed moisture down to < 1 % residual moisture while being ground in the mill. The design of the mill also makes it possible to grind as much as 45 t/h of cement (OPC) to a fineness of 3500 cm²/g Blaine. It is planned to set up the mill in an already existing building.

www.gpse.de

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