| 摘要 |
<p>High efficiency extraction without any moving parts and with automatic emptying of trapped dust from the chamber, is carried out in a rectangular parall-elopiped chamber whose length width and height are 2.5, 2.3 and 3.5 times the hydraulic dia of the vertical outlet pipe for gas in its top face and tangential to one of the vertical bisector planes. Tangential to the other side of the same plane is a horizontal inlet pipe in the upper part of one side wall to which its axis is perpendicular. The floor of the chamber is of grating bars perpendicular to the inlet pipe axis.</p> |
