Showing papers on "Jet mill published in 1970"
Patent•
10 Dec 1970
TL;DR: In this article, an approach for pulverizing granules at low temperatures in a jet mill is described, where two cold-gas streams are used, one for precooling granules to be pulverized and the other for cooling the granules as they are pulverised.
Abstract: Apparatus and process for pulverizing granules at low temperatures in a jet mill is provided wherein two cold-gas streams are used, one for precooling the granules to be pulverized and the other for cooling the granules as they are pulverized.
24 citations
Patent•
04 Feb 1970
TL;DR: In this paper, the preparation of MEAL BLACK POWDER from the RAW MATERIALS POTASSIUM NITRATE, SULPHUR and CARBON, where the RAW mixtures are mixed and SIMULTANEOUSLY GROUND and PULVERIZED under CONTINUOUS INTRODUTION into a JET MILL of KNOWN CONSTRUCTION.
Abstract: THE PRESENT INVENTION RELATES TO A PROCESS FOR THE PREPARATION OF MEAL BLACK POWDER FROM THE RAW MATERIALS POTASSIUM NITRATE, SULPHUR AND ACTIVATEDCARBON, WHEREIN THE RAW MATERIALS ARE MIXED AND SIMULTANEOUSLY GROUND AND PULVERIZED UNDER CONTINUOUS INTRODUTION INTO A JET MILL OF KNOWN CONSTRUCTION. THE INVENTION ALSO RELATES TO THE FURTHER PROCESSSING OF THE MEAL BLACK POWDER, COMPRISING COMPACTING DISINTEGRATION, SIEVING AND POLISHING THE OBTAINED BLACK POWDER GRANULES, WHEREIN THE POLISHING IS CARRIED OUT IN A SIMILAR JET MILL AND PULVERIZED GRAPHITE IS BLOWN INTO THE MILL FOR FURTHER POLISHING OF THE POWDER GRANULES.
16 citations