| 摘要 |
A screw support is made in the form of a cylindrical rod, having conical form from below, and has a through radial opening on top. To the cylindrical rod is rigidly connected by inside diameter the screw support in the form of worm conveyor from below the conical form. The worm conveyor is made in the form of helical spiral with L-shaped cross section, which is made along outside diameter with a ledge bent at the angle of 90° to horizontal generatrix of the helical spiral. Shelf is directed towards the conical lower basis of cylindrical rod and is parallel relative to it. An L-shaped spiral is made of conical shape along external diameter.. |
