Improved type porous granular ammonium nitrate fuel oil explosive and preparing method thereof

Abstract

The invention discloses an improved type porous granular ammonium nitrate fuel oil explosive and a preparing method thereof. The improved type porous granular ammonium nitrate fuel oil explosive is prepared by mixing the following three raw materials in percentage by weight: 93%-95% of porous granular ammonium nitrate, 2.5%-5.0% of light diesel oil and 1.5%-4.0% of bamboo charcoal powder. The preparing method comprises the following steps of adding the porous granular ammonium nitrate to a dispersator according to quantity, then slowly adding sufficient light diesel oil, sufficiently stirring for 5 minutes, and then stopping stirring; standing for 5 minutes, starting the dispersator again, slowly adding the residual bamboo charcoal powder, continuously stirring till color and luster are uniform, wherein the black bamboo charcoal powder is uniformly absorbed on the surface of the porous granular ammonium nitrate; finally filling and sealing to obtain the finished improved type porous granular ammonium nitrate fuel oil explosive product which has the advantages of uniform stirring, excellent property, low moisture absorption and agglomeration ratio, stability in storage, safety, environmental protection, energy conservation, low consumption and low cost.

Description

technical field [0001] The invention relates to an improved porous granular ammonium oil explosive and a manufacturing method thereof, belonging to the technical field of industrial explosives. Background technique [0002] Porous granular ammonium oil explosive is an explosive mechanical mixture composed of porous granular ammonium nitrate and light diesel oil. According to the principle that the explosive formula should meet the principle of zero oxygen balance, it can be known that the porous granular ammonium nitrate and The proportions of light diesel oil components are respectively 94%-95% and 6%-5%. In recent years, with the continuous development of my country's national economy, the investment in infrastructure is increasing. The development of domestic large-scale coal mines and metallurgical open-pit mines and the main substitute products after the elimination of ammonium ladder explosives, porous granular ammonium oil explosives in large aperture , large doses of...

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Problems solved by technology

[0003] At present, due to the characteristics of porous granular ammonium nitrate and diesel components, ordinary porous granular ammonium oil explosives have the following disadvantages, which limit the development of porous granular ammonium oil explosives

[0004] 1. Poor storage stability

Among the two components, porous granular ammonium nitrate is easy to absorb moisture and agglomerate, diesel oil is easy to volatilize, and the explosive performance will be greatly attenuated with the prolongation of storage time;

[0005] 2. The storage period is short, only 30 days, and the destruction of expired explosives is likely to cause safety accidents and environmental pollution;

[0006] 3. Rising raw material prices and increased manufacturing costs

[0007] 4. Among the components of porous granular ammonium oil explosives, light diesel oil is a non-renewable resource and contains toxic and harmful substances such as benzene, toluene and xylene. Requirements for exhaustion and resource conservation

[0008] Aiming at the supply-demand relationship between the increasing consumption of porous granular ammonium oil explosives and the rising price of raw materials, as well as the disadvantages of porous granular ammonium oil explosives such as poor storage stability, short storage period, easy moisture absorption and agglomeration, and easy volatilization, research and use are cheap, clean and Raw materials that can improve the performance of porous granular ammonium oil explosives are particularly important

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