Compact burner for an entrained-flow gasifier having no liquid cooling

Abstract

A compact burner for the pressurized gasification of pulverized fuel dust for producing synthesis gas, wherein a plurality of concentric media channels transition into a conical burner tip. The burner tip provides a reduced contact surface on the reaction chamber side. The nozzle components of the burner tip are produced by selective laser melting, which permits a design for cooling by supplied media, such as fuel gas, flushing gas, or oxidation. A sliding guide having an intermediate seal is arranged between the nozzle components of two media channels to equalize temperature-driven linear extensions. The compact burner makes the expense for liquid cooling unnecessary.

1 . A compact burner for the pressurized gasification of pulverized fuel dust for producing synthesis gas, comprising:
 a plurality of tubes which delimit concentric channels for supplying media,   a burner tip which tapers conically,   wherein nozzle parts of the burner tip are manufactured by selective laser melting, and   a seal which is arranged at a sliding guide between two of the concentric channels.   
     
     
         2 . The compact burner as claimed in  claim 1 , further comprising:
 a swirl plate which is arranged in the concentric channel for the media.   
     
     
         3 . The compact burner as claimed in  claim 1 , further comprising:
 a nozzle part which merges at its conically tapering end into a cylindrically formed end piece.   
     
     
         4 . The compact burner as claimed in  claim 1 ,
 wherein the media comprises a fuel gas, a flushing gas, and/or an oxidizing agent.   
     
     
         5 . The compact burner as claimed in  claim 2 ,
 wherein the media comprises a fuel gas, a flushing gas, and/or an oxidizing agent.