| 摘要 |
A method for the cold sterilisation of a tunnel-type oven (1), this latter being suitable for the hot sterilisation of bottles, comprising an input chamber (3), a hot sterilisation chamber (4), a cooling chamber (5) and a conveyor (6), consists of a sequence of operating phases which have to be carried out periodically. Said phases comprise: airtightly closing the input (31) and output (51) openings of the oven (1), the air input ducts (33, 43) and output duct (34); supplying a pre-defined amount of sterilisation fluid mixed with air, until all the inner surfaces of the oven (1) are reached by said fluid; opening a recycling duct (37); stopping the supply of sterilisation fluid, and supplying the oven (1) with humidity and temperature controlled air. The oven (1) design keeps it completely hermetic, once said input opening (31) and output opening (51) have been closed. |
