Twin Screw Extruder With Black Powder

A continuous process of manufacturing black powder using a twin screw extruder is disclosed. Guar gum mixed with the single screw extruder at a concentration in the range from 0.05% to 0.5%, by weight, dramatically reduced the friction in the dies and permitted extrusion of the powder at much lower water levels. Different size dies used in combination with face cutting of the extruded strands produce various sized granules. The process can be operated remotely and automatically. The

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