Recovery device for recovering pulverized product in spraying apparatus in vine barn, has structure including inflatable roll of flexible material, where roll is supplied by supply of gas under pressure to ensure maintenance of canvas

摘要

The device has a canvas (18) held by a structure (20), and a gutter (50) to collect a liquid. The structure includes an inflatable roll (24) of flexible material, where the inflatable roll is supplied by a supply of gas under pressure so as to ensure the maintenance of the canvas. A frame (22) placed in the periphery of the canvas includes an upper section (26), a front section (28), a lower section (30) and a back section, where the frame is formed on a portion of the canvas by the inflatable roll.