Influence of ammonium nitrate prills' properties on detonation velocity of ANFO

被引：72

作者：

Zygmunt, Bogdan

Buczkowski, Daniel

机构：

[1] Tech Mil Univ, Mechatron Fac, PL-00908 Warsaw, Poland

[2] Inst Ind Organ Chem, PL-03236 Warsaw, Poland

来源：

PROPELLANTS EXPLOSIVES PYROTECHNICS | 2007年 / 32卷 / 05期

关键词：

ANFO; detonation velocity; porosity; prilled; ammonium nitrate;

D O I：

10.1002/prep.200700045

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Prilled/granulated ammonium nitrate is commonly used as a fertilizer and a basic ingredient of industrial explosives, especially of ANFO. One of the most important factors that affect the explosive properties of ANFO is the porosity of the prills/granules. This paper describes an attempt to manufacture ammonium nitrate prills of determined porosity in order to investigate its influence on the ANFO detonation velocity. A method of manufacturing porous ammonium nitrate prills with a high-level of oil absorption (up to 20% by volume) was developed. The relations between porosity and granulometric distribution of ammonium nitrate prills versus the detonation velocity of ANFO were examined. It has been proved that the detonation velocity of ANFO increases significantly with higher porosity and smaller size of ammonium nitrate prills/granules. The influence of ANFO oxygen balance (researched by changing the content of fuel oil in the mixture) on detonation velocity has been determined for two kinds of ammonium nitrate prills-one with a low and another one with a high level of porosity.

引用

页码：411 / 414

页数：4