Tubular burner for industrial furnaces

US6638058B1 · kind B1 · utility

Assignee

• Krupp Polysius AG · DE

Inventors

• Sebastian Mainusch · Warendorf, DE
• Gerhard Kastingschafer · Wadersloh, DE
• Thomas Woestmann · Münster, DE
• Andreas Kroner · Schloß Holte-Stukenbrock, DE
• Oliver Wilde · Beckum, DE
• Reinhard Korting

Key dates

• Filing date: Dec 7, 2001
• Grant date: Oct 28, 2003
• Expiry date: Dec 7, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F23D14/48
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

A tubular burner for industrial furnaces is capable of achieving a good mixing of combustion gas and fuel. This burner contains an end section projecting into a combustion zone supplied with secondary combustion air, and several separate annular feed ducts for combustion gas and fuel bounded by tubular walls arranged coaxially one inside the other, individual nozzles being arranged in approximately annular distribution in the end wall of the combustion gas feed duct facing into the combustion zone. To achieve a good mixing of combustion gas/combustion air and fuel, at least one outer annular feed duct is constructed essentially as fuel feed duct, whilst the combustion gas feed duct equipped with individual nozzles is arranged radially inside this fuel feed duct.