| 摘要 |
<p>The invention relates to a device enabling powder material (12) to be transported, including a conveyor (3), which includes a lower channel (6) wherein a gas flows, and an upper channel (7) intended for the circulation of the powder material and said gas, said lower channel and said upper channel being separated by a porous wall (5) through which said gas is capable of passing, the lower channel being supplied with pressurized gas enabling potential fluidization of said power material in said upper channel, said upper channel being provided with transverse walls (50) in the upper portion thereof, which are arranged such that same define, together with the upper wall of said upper channel, at least one roof in which a pressurized gas bubble (20.1, 20.2) forms by the potential fluidization pressurization of said air channeling. In the vicinity of at least one bubble thus formed, the wall of the upper channel includes a fluidization gas discharge means provided with a partial vacuum-producing means (120.1, 120.2), which produces a substantially constant partial vacuum.</p> |
