Explosive modeling powder spray granulation spheroidization device

Abstract

The invention provides an explosive molding powder atomizing granulating spheroidizing apparatus. The explosive molding powder atomizing granulating spheroidizing apparatus comprises a primary sieve granulating part and an atomizing spheroidizing part, wherein the primary sieve granulating part comprises a double-layer scraper plate (1), a primary granulating net (2), a secondary granulating net (3), a spline main shaft (4), an explosion-proof frequency-variable motor (5), a reducer (6) and a discharging groove (7), the atomizing spheroidizing part comprises a spheroidizing device (8), a spheroidizing device rotating shaft (9), an electromotor (10), a belt pulley (11), a feeding-discharging opening cover (12), a solvent spray head (13), an air compression station (14), a glue solution tank (16) and a vacuum pump (18). The explosive molding powder atomizing granulating spheroidizing apparatus is suitable for aluminum-containing explosive, and particularly suitable for granulating and spheroidizing forming the JHOL-1 explosive. The JHOL-1 explosive molding powder prepared by adopting the explosive molding powder atomizing granulating spheroidizing apparatus is in a compact spherical shape, high in accumulation density and good in mobility.

Description

Technical field [0001] The invention relates to a spray granulation spheroidizing device for explosive modeling powder, in particular to a spray granulating spheroidizing device for JHOL-1 explosive. Background technique [0002] Press molding is an important way of forming explosive products. The products prepared by this process have many advantages such as high molding dimensional accuracy, high molding density, and convenient molding. The raw material of explosive press molding is called molding powder. The morphology, particle size and bulk density of the molding powder have a very important influence on the quality of the final pressed product. Generally speaking, modeling powder with spherical shape and moderate particle size has higher bulk density, better powder flowability, and higher density of the pressed product. The higher the density of the molded grain, the higher the explosive velocity, explosion pressure, The higher the explosive heat, the higher the damage ef...

AI Technical Summary

Problems solved by technology

Since the formula system contains aluminum powder, the aluminum powder and water will react when heated, so it is not suitable for the water suspension granulation process; in addition, the aluminum powder in the JHOL-1 explosive formula contains some flaky aluminum powder, which is different from the commonly used spherical aluminum powder. In contrast, its shape is irregular flakes, and the specific surface area is large. If the kneading, crushing and granulation process is adopted, the flake aluminum powder will be coated on the surface of the simple explosive by a binder, so that the bulk density and fluidity of the finished explosive molding powder will increase. It is lower than the explosive molding powder using spherical aluminum powder in similar formula systems, and the compression formability cannot meet the charge requirements

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