Combustion chamber and process for combusting at least partially combustible substances

US5050512A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Herbert Tratz · Ottensoos, DE
• Georg Losel · Uttenreuth, DE

Key dates

• Filing date: Jul 16, 1990
• Grant date: Sep 24, 1991
• Expiry date: Jul 16, 2010

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F23G2201/304
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

A combustion chamber for combusting a substance includes a burner and at least three successively disposed parts including a primary chamber, a secondary chamber and an ash discharge chamber. The burner is associated with and conducts a first air flow to the primary chamber. The primary chamber has an inlet for conducting a second air flow for substoichiometric combustion of a substance to be combusted at a temperature below an ash softening point and without clinker flow. The secondary chamber has an inlet for conducting a third air flow for brief, intensive, complete combustion of the substance discharged from the primary chamber with clinker flow, and the secondary chamber has walls and a material lining the walls being resistant to fluid clinker. A process for combusting a substance being at least partially formed of combustible material includes feeding an air flow to the substance for substoichiometrically combusting the substance at a temperature below an ash softening point without clinker flow but with formation of a residue, and subsequently admixing a further air flow with the residue of the substoichiometric combustion for completely combusting the residue and forming f…