Assembling and welding method for side wall burner nozzle connecting pipe of multi-nozzle gasification furnace

• Main Authors: YIN RUNBANG, ZHAO YINGQUAN, DOU QUANSHAN, LUO YONGFEI
• Format: Patent
• Language: Chinese; English
• Published: 18.11.2022
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The invention discloses an assembling and welding method for a burner nozzle connecting pipe on the side wall of a multi-nozzle gasification furnace, which belongs to the technical field of welding and comprises the following steps: selecting a shell ring of the gasification furnace, and aligning and indexing to determine the positions of four assembly holes on the same plane and circumference by taking the end face on one side of the shell ring as a reference; a burner connecting pipe is selected, and the to-be-welded end of the burner connecting pipe is machined; an assembly hole is machined in the shell ring, so that the to-be-welded end of the burner connecting pipe is assembled with the shell ring, an inner U-shaped groove and an outer truncated edge with the length of 29.5-30.5 mm are formed at the joint, and the assembly gap between the burner connecting pipe and the shell ring is 0-0.5 mm; connecting and fixing the burner connecting pipe and the shell ring by adopting a connecting piece, and monitorin