Method for the preparation of heavy ANFO using high density ammonium nitrate and gassed bulk emulsion
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United States of America Patent
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Nov 3, 2015
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app pub date -
Jul 31, 2014
filing date -
Jul 31, 2014
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Abstract
A method of preparing heavy ANFO including loading high density ammonium nitrate into a hopper; feeding the high density ammonium nitrate into a mixing chamber; during the feeding step, injecting fuel into a high density ammonium nitrate feeding pipe, thereby obtaining ANFO; loading bulk emulsion into a hopper; gassing the bulk emulsion; feeding the gassed bulk emulsion into a same mixing chamber as the ANFO; and mixing the gassed bulk emulsion and the ANFO, thereby obtaining heavy ANFO.
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