The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 2015
Filed:
Jul. 31, 2014
Exsa S.a., Lima, PE;
Karl Maslo, Lima, PE;
Heberth Ruiz, Lima, PE;
EXSA S.A., Lima, PE;
Abstract
A method of thermally treating high density ammonium nitrate for manufacturing ANFO and heavy ANFO including loading high density ammonium nitrate into a tank; entering the high density ammonium nitrate into heating equipment at room temperature; heating the high density ammonium nitrate inside the heating equipment; removing the treated ammonium nitrate from the heating equipment at a temperature less than 60° C.; and sieving the treated ammonium nitrate, thereby obtaining thermally treated ammonium nitrate; feeding thermally treated ammonium nitrate at a temperature of less than 30° C. into a mixing chamber while injecting fuel into the thermally treated ammonium nitrate feeding pipe, thereby obtaining ANFO; loading gassed or ungassed bulk emulsion into a hopper; feeding the bulk emulsion into the same mixing chamber as the ANFO; and mixing the bulk emulsion and the ANFO, thereby obtaining heavy ANFO.