| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent fall in throughput of a first mixer even when two drum mixers are joined. <P>SOLUTION: In a rotary cylinder type joined drum mixer apparatus, two drum mixers 1, 2 for mixing and pelletizing a sintering raw material 3 are directly joined by fitting and a raw material 3 is charged therein from a raw material charging end 1a of a first mixer 1 on an upstream side and the sintering raw material 3 subjected to mixing and pelletizing treatment is discharged from a pelletized material discharge end 2a of a second mixer 2 on a downstream side. An inner diameter in a range where main mixing in the first mixer 1 on the upstream side is carried out is made larger than an inner diameter of a fitting joining part 4 on a discharge side of the first mixer 1. For the first mixer, a state where a weir appears at an exit is caused, a raw material occupation rate is raised and residence time is prolonged, and thereby effect of main mixing is improved. <P>COPYRIGHT: (C)2013,JPO&INPIT |
