For extra-large throughput rates: MVR vertical mill with multiple drive

High throughput rates, permanent plant availability , optimized maintenance concepts – features of the MVR mill and the patented MultiDrive® enabling Gebr. Pfeiffer to meet the ever rising expectations of the industry. Thanks to the innovative drive and active redundancy, an unintended stop of the grinding process is practically excluded. No matter what type of material has to be ground – cement raw material, cement clinker or granulated blast-furnace slag – and how different their grindability and abrasiveness may be, the MVR mill ensures throughput rates of a different dimension, around the clock, reliably and on the long term. Forget about downtime. With Pfeiffer you will grind on a grand scale.

ADVANTAGES OF THE MVR MILL WITH MULTIDRIVE®

Throughput rates of more than 1,400 t/h on a single mill

Owing to the MultiDrive® specially conceived for the Pfeiffer MVR mill, two mills equipped with conventional drives can be replaced with just one mill.

Low capital expenditure

MVR mills need only few peripheral machinery, no or little walled-in space, their operation is dust-free and they have a low noise level.

Highest availability thanks to double active redundancy, i.e. for grinding rollers and drive modules

An MVR mill may have up to six grinding rollers and up to six drive units. Thus both systems are actively redundant meaning that one or several rollers can be taken out of the system for maintenance work while mill operation continues. The same applies to the independent drive modules of the MultiDrive®.

Optimum utilization of process heat

The thermal energy of process gases can be used on Pfeiffer roller mills.

Utmost reliability and ease of maintenance

High-quality wear materials, sophisticated maintenance concepts, and low specific wear rates reduce time and cost of maintenance to minimum.

Favorable control behavior

High drying capacity, short dwell time of the material to be ground, and remote control of grinding pressure and classifier rotor speed ensure a fully automatic operation of the MVR mill even with varying raw material characteristics.

Low electric energy consumption

Electric energy consumption of Pfeiffer roller mills is reduced by up to 40% as compared with conventional ball mills.

Homogeneous compaction of the material to be ground

Thanks to the geometry of the grinding rollers in combination with their specific suspension, there is always a parallel grinding gap, ensuring a homogeneous compaction of the material to be ground. Moreover, due to the symmetric shape of the grinding roller tires, these can be turned when worn.