Process and mechanism for in situ sensitization of aqueous explosives
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United States of America Patent
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Mar 25, 2003
Grant Date -
Sep 12, 2002
app pub date -
Mar 13, 2000
filing date -
Jun 26, 1997
priority date (Note) -
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Abstract
The process for sensitizing in situ aqueous explosives before charging the mine holes comprises the formation of an emulsion of dispersion gas-in-liquid from a low sensitivity or non explosive matrix product which consists of a liquid mixture in solution, emulsion or suspension of oxidant in fuel, and a gas. The density of the final explosive product can be varied as a function of the gas flow rate and can be controlled before introducing it into the hole. The installation comprises a tank (1) with the matrix product, a gas reserve (10), a mixture (5), a pump (3), and a gas flow rate regulating device (8) and optionally a tank (2) with a gas bubble stabilizing agent, a dosing pump (4) and a flow meter (7).
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