A test system and method for suspended combustion of metal aluminum powder

Abstract

The present invention discloses an experimental system and method for suspended combustion of metal aluminum powder. The suspended combustion device of the system comprises a combustion tube, the top end of which is provided with an air outlet, the bottom end of which is a reduced diameter structure and provided with an air inlet, a heating device wrapped around the outer body of the middle and upper cylinder, and a heating wire mesh arranged inside the middle and upper cylinder; a suspended gas supply device comprises a compressed air tank, the outlet of which is connected with the air inlet; the metal aluminum powder suspended device comprises an aluminum powder chamber, a chamber pull rod and a plurality of hemispherical nozzles; the aluminum powder chamber is transversely arranged at the top of the reduced diameter structure of the combustion tube, one end of which is fixed to the inner wall of the combustion tube, and the other end of which extends out of the combustion tube; the aluminum powder chamber comprises a fixed shell and a porous material bottom plate slidably connected to the lower end of the fixed shell; one end of the chamber pull rod is connected to the porous material bottom plate, and the other end of which extends out of the fixed shell; a plurality of hemispherical nozzles are arranged above the fixed shell, the handle end of which is connected to the fixed shell, and a plurality of small air outlet holes are arranged at the spherical end; a measuring and recording device is used for collecting images of suspended combustion of metal aluminum powder.

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