| 摘要 |
<p>Arranged in front of the heating chamber is an inlet sieve having sealed louvres and a device which creates a curtain of water by spray nozzles. The water is discharged by a piping system. Situated behind the heating chamber is an intermediate element comprising piping for feeding a protective gas, and an outlet sieve haing an outlet spraying device and sealed louvres. A device is provided for moving and controlling to movement of the tube.</p> |
