| 摘要 |
<p>An apparatus for cleaning a surface (0) by means of an abrasive in a transporting air current at high velocity, which apparatus substantially consists of a nozzle (1) for placing on the surface (0) provided with a feed line (3) to be connected onto a pressure source (4), which line (3) has an inlet opening (9) for the abrasive, and a discharge line (6) connected to a vacuum source and leading to a dust collector (8) wherein a dust/abrasive separator (7) is accomodated in the discharge line (6) and connected via a closable port mechanism (13) with a storage tank (10) for the reclaimed abrasive connected to the inlet opening (9), and further said dust/abrasive separator being a container having baffle means arranged therein, whereby the discharge line leading to the dust collector runs out beneath the lowest of the baffle means in order to separate the dust from the grit more efficiently.</p> |
