| 摘要 |
It comprises a module 1 for entry to the tunnel, the latter composed of modules 2 and a section 3 which is linked to a generator 4 of hot air which is introduced into the tunnel by means of turbines, under pressure. A belt 5 conveys the product from the entry 1 to the subsequent module 8 and a second belt 13 transports the product on its return to the module 1, which is converted into simultaneous entry and exit head. The improvements allow automatic loading of the product and its exit, once processed, via the same end of the tunnel, distribution of the air currents in a circular and horizontal manner and easy control of the control panels. <IMAGE>
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