| 摘要 |
1495223 Cooling exothermic reactions in fluidised beds DORR-OLIVER INC 26 May 1976 [25 June 1975] 21901/76 Heading B1F To protect the lower bends 36, Fig. 3, of vertical heat exchange coil in a fluidised bed from erosion, e.g. in burning coal in a bed of limestone, the fluidising gas is introduced through tuyeres ports 19, Fig. 3, at a distance above the support plate 13, so that a quiescent region is formed about bends 36. The upper bends (34, Fig. 1 not shown) may be thickened if in the bed, or may be positioned above the bed. Air, water or liquid NaK may be used as heat exchange media. |
