Steel Mill IGCC

Start-up failure

Compressor started up successfully and running correctly

Country:

Latvia

Application:

Steel Mill

Compressor type:

Integrally geared Centrifugal Compressor

Service

Furnace air compressor

Power:

4 MW

Pressure:

50 bar

Steel Mill IGCC

Problem

Impeller destroyed twice at first Start-up

Solution

RCA with rotor-dynamic and metallurgical analyses revealed wrong clearance on bearings
New bearing arrangement defined and installed