Patent ID: 6183169
Filing Date: 2001-02-06
Classification: B01F

Abstract:
Apparatus which dispenses dry particles, comprising:a first-stage gas-solids fluidization chamber and at least one second-stage gas-solids fluidization chamber, each first-stage said first-stage and said at least one and second-stage chamber having particle fluidization means for creating a suspension of said particles within said chambers;for each said second-stage chamber, a conduit connected for suspended particles to flow from said first-stage chamber to said second-stage chamber for suspension in said second-stage chamber;means for providing a pressure drop from said first-stage chamber to each said second-stage chamber, to produce said flow of suspended particles from said first-stage chamber to said second-stage chamber; and,for each said second-stage chamber, means for withdrawing suspended particles from said at least one second-stage chamber into at least one collection area.