| 摘要 |
<p>Installation for introducing fractionated solid materials, for example powder, granular material, fiber and the like, into a treatment machine, particularly an extruder (1, 2), with a supply funnel (3) and one or a plurality of supply screws (5) which actually traverse the supply funnel. In order to obtain a uniform flow rate of fractionated solid materials uniformely and continuously supplied inside the supply funnel, there is arranged at a certain distance therefrom and substantially coaxially a funnel-shaped element (9). The supply screw or screws traverse the supply funnel without touching it, the member configured as a transport trough (10) projecting outside the supply funnels. Outside the supply funnel (3), the transport trough (10) is connected to a vibrator (13).</p> |
