Supercharged coal-fired steam generator

US4974411A · kind A · utility

Assignees

• Siemens Aktiengesellschaft · DE
• Saarbergwerke Aktiengesellschaft · DE

Inventors

• Hermann Bruckner · Uttenreuth, DE
• Lothar Stadie · Hochstedt, DE
• Gerhard Scholl · Friedrichsthal, DE

Key dates

• Filing date: Sep 14, 1989
• Grant date: Dec 4, 1990
• Expiry date: Sep 14, 2009

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E20/18
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A gas and steam turbine power plant has a gas turbine with a gas side, a waste heat steam generator having a steam side and being connected downstream of the gas side of the gas turbine, and a steam turbine connected to the steam side of the waste heat steam generator. A super-charged, coal-fired steam generator has an exhaust gas vent line connected to the gas turbine. The coal-fired steam generator includes at least one substoichiometrically operated fluidized bed furnace system, an integrated dust separator connected downstream of the at least one fluidized bed furnace system, and a steam generator slag tap or wet tap furnace having burners with a gas side connected downstream of the dust separator.