Apparatus and methods for entraining a substance in a fluid stream

摘要

Apparatus and methods are disclosed for uptake and transport of particulate matter in a gas stream. The apparatus includes a receiver for the particulate matter connected with a gravity feed input channel assembly with a passive metering orifice therein. An in-line aeration and distribution chamber assembly is connected with an outlet from the input channel assembly and includes a chamber with plural discrete gas intake passageways opening thereinto. An outlet channel exits the chamber and is connectable with a vacuum suction source for directing a gas stream having the particulate matter entrained therein from the apparatus.

主权项

1. Apparatus connectable with a vacuum suction source for entraining a substance in a fluid stream comprising:
a receiver for the substance having a discharge structure; a gravity feed substance input channel assembly receiving said receiver discharge structure at one end and having an opposite end therebelow, said assembly including a passive metering orifice therein, wherein said one end of said input channel assembly includes a receiver adapter for receiving said discharge structure of said receiver, and wherein said metering orifice is located in a first removable insert deployable in said receiver adapter; at least one additional metering orifice insert having at least one feature different from said first removable insert, said inserts selectively interchangeable at said receiver adapter to accommodate either or both of different metering outcomes and different physical characteristics of the substance; and a distribution assembly receiving said opposite end of said input channel assembly and having a fluid intake and an outlet channel connectable with the vacuum suction source for directing a fluid stream having the substance entrained therein from the apparatus.