Porous granular ammonium nitrate fuel oil explosive with stable and safe performance

Abstract

The invention discloses a safe porous granular ammonium nitrate fuel oil explosive with stable performance. The safe porous granular ammonium nitrate fuel oil explosive comprises the following components in parts by weight: 94-95 parts of porous granular ammonium nitrate and 5-6 parts of liquid paraffin. The liquid paraffin is adopted as a combustible agent, the liquid paraffin is an intermediate product of coal-to-oil, and is non-toxic, free of pungent smell, environment-friendly and convenient to store and transport, the porous granular ammonium nitrate fuel oil explosive is prepared without heating and melting, the density is only 0.83-0.89 g / cm < 3 >, and the prepared explosive is high in detonation sensitivity and beneficial to on-site blasting; compared with an existing process formula and production steps, the preparation method is simpler, and the performance is greatly improved.

Description

Technical field: [0001] The invention relates to a porous granular ammonium explosive with stable performance and safety, belonging to the field of explosives. Background technique: [0002] Ammonium explosives refer to a powdery or granular explosive mixture composed of ammonium nitrate and combustibles. Porous granular ammonium explosives are prepared by mixing 94-95 wt% of oxidant porous granular ammonium nitrate and 5-6 wt% of combustible diesel fuel. It is widely used in the field of engineering blasting. [0003] In the production process, the consumption of diesel oil is large and the production cost is high, and the company has been included in the key supervision list of high energy consumption because of the large amount of diesel used all the year round. Problems; Diesel has a low flash point, is volatile and produces a pungent odor, which is not conducive to storage and long-distance transportation, and is prone to safety production accidents and occupational h...

AI Technical Summary

Problems solved by technology

[0008] 1. Nitrotoluene, dinitrotoluene, dinitrophenol, animal oil, paraffin and microcrystalline wax are solid at room temperature and have a high melting point. When using the above substances as combustible agents to produce porous granular ammonium oil explosives, high temperature is required For melting, many equipments are put into use, the production process is relatively complicated, and nitrotoluene, dinitrotoluene, and dinitrophenol are easy to explode when they are melted at high temperature, and there are great safety hazards;

[0009] 2. Nitropropane, nitrotoluene, dinitrotoluene, and dinitrophenol are slightly soluble in water, and are easily affected by the environment during use. For example, when blasting in a humid environment or blasting with water blasting holes, it will cause porous granular The decline in the performance of ammonium oil explosives;

[0010] 3. Nitropropane, nitrotoluene, dinitrotoluene, and dinitrophenol are toxic and have a pungent odor. When the above-mentioned substances are used as combustible agents to produce porous granular ammonium oil explosives, the occupational health of the staff is seriously affected;

The greater the density of the oil phase material, the higher the required detonation energy, and the irritating smoke and dust such as nitrogen oxides produced after the explosion are relatively large, which does not meet the environmental protection requirements);

[0012] 5. Nitropropane and dinitrophenol have low flash points, which are prone to fire during storage and transportation, and have high safety risks;

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