Automated propellant blending

Agitating – Having specified feed means – Responsive to condition sensor

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422163, 3661501, 366241, 366279, 137 93, B01F 1502

Patent

active

058790799

ABSTRACT:
An automated propellant blending apparatus and method uses closely metered addition of countersolvent to a binder solution with propellant particles dispersed therein to precisely control binder precipitation and particle aggregation. A profile of binder precipitation versus countersolvent-solvent ratio is established empirically and used in a computer algorithm to establish countersolvent addition parameters near the cloud point for controlling the transition of properties of the binder during agglomeration and finishing of the propellant composition particles. The system is remotely operated by computer for safety, reliability and improved product properties, and also increases product output.

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