Steel Mill IGCC - Start-Up Failure – Blackstone Technical Services

Damaged bearing pad and impeller

Bearing load

Lateral analysis

LocationLatvia

ApplicationSteel Mill

Compressor TypeIntegrally geared Centrifugal Compressor

ServiceFurnace air compressor

Power4000 kW

Disch. Pressure50 bara

Impeller destroyed twice at first start-up

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

Compressor started up successfully and running correctly

Steel Mill IGCC – Start-Up Failure