Ignition system for coal gasifier

US4372754A · kind A · utility

Assignees

• Dr. C. Otto & Comp. GmbH
• Saarbergwerke Aktiengesellschaft · DE

Inventors

• Paul Gernhardt · Chesapeake, US
• Wilhelm Danguillier
• Karl Peter · Bochum, DE
• Wolfgang Grams · Herne, DE
• Siegfried Pohl · Oberschleißheim, DE
• Peter B. Schnitzler · Eppelheim, DE

Key dates

• Filing date: Nov 26, 1979
• Grant date: Feb 8, 1983
• Expiry date: Nov 26, 1999

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S48/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

An ignition burner and a pilot burner form part of an ignition system for a fluidized stream of finely-divided coal particles in a pressurized gasifier housing having a slag overflow pipe coupled to a discharge vessel. A fuel supply pipe delivers fuel for combustion by the ignition burner and the pilot burner. A sparkplug or hot wire is used to ignite the fuel delivered to the ignition burner. The flame produced by the ignition burner is widened by a baffle so that ignition by the pilot burner occurs to produce a flame which is monitored through a thermocouple. The parts forming the ignition system are carried by a pair of levers with pivots on the inner wall of a slag overflow pipe for movement between an operative position wherein the ignition burner is situated near the slag-receiving opening of the overflow pipe and an inoperative position wherein the ignition burner is protected from contact by slag and radiation heating. The ignition burner moves within substantially only one plane extending through the centerline of said slag overflow pipe.