| 摘要 |
<p>A process for the treatment of objects with an inflammable volatile liquid, in an installation comprising at least one upwardly open tank (16) adapted to be filled with the liquid, a drying device (20) adapted to remove contained treatment liquid from the treated objects, and a transport system adapted to bring an object to be treated above the tank, and to immerse it in the tank, to withdraw it, and to transfer it into the drying device, then to remove it. The tank and the drying device are disposed in a closed chamber (2, 4) containing an atmosphere comprised principally of a protective gas, with an oxygen content maintained sufficiently low that the ignition of the treatment liquid will be impossible. This chamber is separated from the exterior by at least one gas lock (1, 5) containing the same atmosphere. The object to be treated passes through the gas lock to enter the chamber and by the same or another gas lock to be removed. In the drying device (20), the objects are brought to a temperature higher than that at which the vapors of the treatment liquid would burn in the presence of air. In the drying device (20), the objects are heated by blowing (23) of preheated protective gas. The preheated protective gas is comprised at least in part by protective gas from the chamber, which has been impoverished in treatment product vapors by passage through a condenser (22) before having been preheated.</p> |
