Coal mills of all types can cause significant vibration in their vicinity, which can lead to disturbance, damage and subsequently even to interruption of power plant operation
Coal mills of all types can cause significant vibration in their vicinity, which can lead to disturbance, damage and subsequently even to interruption of power plant operation.
A major concern is the possible effect of vibration in the control room with all its control instrumentation for the power plant and also for individual instrumentation, control units and switch gears adjacent the boiler.
Over the period of the last 30-40 years, GERB developed and introduced an elastic foundation system for the vibration isolation of coal mills, which is used in nearly all german power plants, and also in many other power stations throughout the world.
The spring support enables the utilisation of much smaller and more compact mill foundations than the conventional massive ones previously regarded as necessary.
Static loads are supported by the spring units, which are equipped with high quality, fatigue free coil springs.
Special velocity proportional Viscodampers are arranged in
parallel to the spring system to minimize the mass of the foundations and to stabilize the system at the same time.
GERB Vibration Control Systems, Inc., 1950 Ohio Street, Lisle, IL 60532. Tel: 630-724-1660; Fax: 630-724-1664.