Patent ID: 8808616
Filing Date: 2014-08-19
Classification: C21B,F27B,F27D

Abstract:
1. Bustle pipe arrangement of a shaft furnace comprising: a circumferential bustle pipe arranged along an outer casing of said shaft furnace, said bustle pipe being arranged at a certain distance from said outer casing; a plurality of first arms connecting said bustle pipe to said outer casing of said shaft furnace on a first level; first blow channels being arranged through said first arms for fluidly connecting said bustle pipe to an interior of said shaft furnace; and a plurality of second arms connecting said bustle pipe to said outer casing of said shaft furnace on a second level; second blow channels being arranged through said second arms for fluidly connecting said bustle pipe to the interior of said shaft furnace, said first level being different from said second level, wherein said bustle pipe comprises access ports located in wall portions of the bustle pipe and opposite to said first and/or second blow channels, in linear alignment with respective first and/or second blow channels, and wherein said first arms are essentially horizontal and wherein said second arms are inclined at an angle of between 10 and 60° with respect to the horizontal.