| 摘要 |
A hot blast main mixer stage comprises a section of hot blast main (Figure 1a, 2) and a plurality of cold blast inputs 12a, 13a, 14 to the section. The inputs are spaced about a circumference of the main (Figure 1a, 2) in an asymmetric arrangement and at least one of the inputs 12a, 13a is non-radial. More than half of the cold blast inputs 12a, 13a, 14 may be located in one half of the circumference of the hot blast main (Figure 1a, 2) and the converging non-radial inputs 12a, 13a can converge outside the circumference of the blast main (Figure 1a, 2). |
