| 摘要 |
<p>A quick and relatively inexpensive method for filling vertical process vessels, e.g. reactors or packed towers, with particulate material such as catalyst or other packing, while preventing contamination and damage. A special flexible bag with a bottom seal which may be opened by means of a release line is filled with the material and then gently lowered into the vessel by means of line attached to the upper portion of the bag. The bottom seal is then opened by pulling upon the release line, permitting the contained material to drop gently into the vessel. The bag is retrieved by pulling up on the elevator line, and the process is repeated until the vessel is filled to the desired level.</p> |
