| 摘要 |
The invention relates to a submerged combustion burner (1) and to a melter comprising submerged combustion burners (1). The burner comprises a substantially parallelepipedic body, the melt oriented face of which shows a longitudinal slot, two opposite walls of the slot comprising a series of nozzles each supplied separately with fuel and oxygen containing gas. The slot advantageously shows a narrow opening comprised between 10 and 30 mm, preferably between 15 and 25 mm, most preferably about 20 mm. The burner is advantageously made of steel plates, preferably high temperature resistant steel. The walls of the slot as well as the melt oriented face of the burner are advantageously cooled. According to the invention, the parallelepipedic burner body comprises a first external longitudinal volume showing a generally U-shaped cross-section and a second internal longitudinal volume fitted within the said first external longitudinal volume, showing also a generally U-shaped cross-section, one of the longitudinal volumes comprising a connection to a supply of oxygen and the other comprising a connection to a supply of fuel gas. The ends of the branches of the longitudinal volumes are connected to the burner nozzles. A flange is arranged around the parallelepipedic burner body at a distance from the melt oriented face of said body. |
