| 摘要 |
The invention concerns a curtain spraying pipe with means for cleaning a longitudinal slot-shaped opening in the pipe wall, through which a curtain 6 of a fluid is to be sprayed out. The cleaning means 7 comprises a carrier 8 inside the pipe and a cleaning device 9 projecting from the carrier through the slot 5, the carrier being arranged to be moved inside the spray pipe backwards and forwards between both ends of the slot opening, cleaning the gap with the aid of the projecting cleaning device. <IMAGE> |
