| 摘要 |
Spraying device for solid-laden liquids, particularly of the abrasive type, wherein the liquid to be sprayed, introduced tangentially into an annular groove (1) from which it overflows on one side only in order to form a hollow cone of fine droplets, comes in contact, when overflowing, with a circular cross-section movable member (2) held loose about an axis (3) along which it may be displaced rotationally and translationally in a limited way, said liquid causing the rotation of the movable member, characterized in that, when inactivated, the movable member (2) is in contact with the central portion (6) of the annular groove (1) so as to leave free a substantially annular passage for the liquid between the overflow surfaces (10 and 8) and the periphery of said member (2), and in that, due to the clearance of that member (2) rotationally actuated by the liquid, the contact between the liquid and said member causes a spraying effect and the generation of very fine droplets.
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