| 摘要 |
1348295 Mashing ALFA LAVAL A B 3 Nov 1971 [3 Nov 1970] 51049/71 Heading C6E A heated mash is passed continuously through a flat spiral duct whose cross-section is elongated in the direction of the spiral axis, which is horizontal. The duct may comprise a double spiral so that both inlet and outlet may be at the perimeter or at the centre. The mash may be heated in a spiral heat exchanger before entering the duct. Two sets of one or more spiral ducts, the second at a higher temperature than the first, may be employed. |
