Title: Arrangement at central installations for pneumatic transport of packaged refuse

• Summary
• Claims
• Description
• View all

Abstract: In pneumatic refuse systems, each vertical branch duct for receiving the refuse is normally connected to a main suction duct through a valve which, when closed, causes the refuse to be collected in the bottom of the branch duct and, when periodically opened, releases the accumulated refuse into the main duct. Liquid in the accumulated refuse also accumulates, undesirably, on the upper side of the valve. The invention provides an annular chamber positioned around the botttom of the branch duct, and circumferentially spaced-apart openings from the annular chamber to the interior of the branch duct at the level of the top of the valve, so that liquid accumulating at the bottom of the branch duct is collected in the annular chamber; a small bypass duct extends from the annular chamber to the adjacent main duct, so that the collected liquid is sucked out of the annular chamber and into the main duct, thereby clearing the valve of liquid.


Do you think this is a good invention? Vote now: