PROCESS AND APPARATUS FOR PRODUCING ULTRAFINE EXPLOSIVE PARTICLES

摘要

A method and an improved eductor apparatus for producing ultrafine particles is disclosed. The exclusive particles,which when incorporated into a binder system, have the ability to propagate in thin sheets, and have very low impact sensitivityand very high propagation sensitivity. A stream of a solution of the explosive dissolved in a solvent is thoroughly mixedwith a stream of an inert nonsolvent so as to obtain nonlaminar flow of the streams by applying pressure against the flow of thenonsolvent stream, to thereby diverge the stream as it contacts the explosive solution, and violently agitating the combined streamto rapidly precipitate the explosive particles from the solution in the form of generally spheroidal, ultrafine particles. The twostreams are injected coaxially through continuous, concentric orifices of a nozzle into a mixing chamber. Preferably, the nonsolventstream is injected centrally of the explosive solution stream. The explosive solution stream is injected downstream of andsurrounds the nonsolvent solution stream for a substantial distance prior to being ejected into the mixing chamber.