Modifier and preparation method thereof for industrial explosive
A technology of industrial explosives and modifiers, applied in the direction of non-explosive/non-thermal agent components, explosives, offensive equipment, etc., can solve problems such as rupture escape, uneven dispersion, and unstable bubbles, and achieve simple formula and simple production process , Add the effect of simple way
Active Publication Date: 2012-10-31
湖南雷鸣西部民爆有限公司
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AI Technical Summary
Problems solved by technology
[0003] In order to solve the above problems, the present invention proposes a modifier for industrial explosives, which not only reduces the charge density of powdery ammonium oil explosives, improves its detonation sensitivity, but also completely eliminates the instability of bubbles, rupture and escape, uneven dispersion, and demulsification. and other phenomena, which simplifies the sensitization method of explosives, improves the sensitization performance and storage stability of explosives, and its characteristics are according to the mass ratio: it preferably contains 0.1% to 99% of expandable resin powder, and 0% to 90% of dispersing carrier ; Most preferably contain 10% to 50% of expandable resin powder, 20% to 70% of the dispersion carrier
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0017] Formula: 94.5wt% ammonium nitrate, 4.5wt% compound oil, 1wt% modifier, plus 0.3wt% WT type modifier;
[0018] Process: Add 189kg of ammonium nitrate and 0.6kg of WT modifier (additional) to a wheel mill with a chassis temperature of 110±2°C, a spindle speed of 21r / min, and a weight of 500kg. After 20 minutes of rolling treatment After adding 9 kg of compound oil, mixing and grinding for 5 minutes, adding 2 kg of the modifier of the present invention, mixing for 5 minutes and then dispensing, to obtain the ammonium oil explosive of Example 1.
[0019] Ammonium explosives are charged by semi-automatic charging machine produced by Shandong 456 Company. The measured parameters of the loaded drug coil are shown in Table 2:
[0020] projectCharge density (g / cm 3 ) Explosion distance (cm) Length of damaged steel pipe (m) Length of residual steel pipe (m) Comparative example 11.02323 Example 10.9695 No residue
[0021] Note: The steel pipes used in the explosion measurement o...
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Abstract
The invention relates to a modifier and a preparation method thereof for an industrial explosive. The modifier comprises, by mass, 0.1-99% of thermal expansion resin and 0-90% of a dispensed carrier. The preparation method includes adding the thermal expansion resin and the dispersed carrier into a mixing device according to a corresponding ratio for mixing for 5-10 minutes to obtain the modifier after even dispersion and mixing. According to the modifier and the preparation method thereof, the charge density of the industrial explosive is reduced, the detonation sensitivity of the industrial explosive is improved, the production process is simple, the intrinsic safety is good, and the modifier is suitable for continuous and automatic production.
Description
Technical field [0001] The invention relates to a modifier for industrial explosives and a preparation method thereof, which can be used in various industrial explosives in the civil explosive industry. Background technique [0002] Powdered ammonium explosives and emulsion explosives are the main varieties in the production and use of industrial explosives in my country. For powdery granular ammonium explosives, due to the high density of the powder, the use of traditional wood powder as a regulator has poor sensitization effect. In the deep hole blasting of small diameter blasthole charges, partial rejection or incomplete explosion often occurs, which affects The blasting effect seriously restricts its application. In the process of emulsification explosives using chemical foaming technology to generate bubbles or adding expanded perlite powder for sensitization, the bubbles are often unstable, ruptured and escaped, and uneven dispersion, which affects the application of emuls...
Claims
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Patent Timeline
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Inventor 夏文龙唐世灵肖国刘厚平郑光丕文珊肖钢军何正张曹林周三举彭忠厚郭昶
Owner 湖南雷鸣西部民爆有限公司