Rohrleitungssystem zur Brennstoffeinblasung in Hochöfen oder dergleichen

摘要

Pipeline system comprises a fuel tubing line (1) and coupling elements (3, 11) provided on the end sections for connecting the fuel tubing line on a fuel connection (2) on the blast furnace side and on at least one fuel supply (15,16). The fuel tubing line has a core made from a material resistant to natural gas and is provided with a safety braiding on the peripheral side. The coupling elements are formed as quick coupling devices. A metallic sealed return stroke element (6) is provided on the side of the fuel tubing line facing the fuel connection to avoid a gas return stream from the blast furnace.