Modifier for industrial explosives and preparation method thereof
A modifier and expansibility technology, applied in the field of modifiers for industrial explosives and its preparation, can solve problems such as uneven dispersion, breakage escape, and unstable bubbles, and achieve simple formula, low cost, and simple addition methods Effect
Active Publication Date: 2015-09-23
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 roller weight of 500kg, and perform rolling for 20 minutes. After adding 9 kg of compound oil and mixing and milling for 5 minutes, 2 kg of the modifier of the present invention was added, and after mixing for 5 minutes, the ammonium oil explosive was obtained.
[0019] The ammonium oil explosives are charged by semi-automatic charge machine produced by Shandong 456 Company, and the parameters of the loaded charge rolls are listed in Table 2:
[0020] project Charge density (g / cm 3 ) Sacrifice distance (cm) Destroyed steel pipe length (m) Residual steel pipe length (m) Comparative example 1 1.02 3 2 3 Example 1 0.96 9 5 Totally destroyed without residue
[...
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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 oil explosives and emulsion explosives are the main varieties in the production and use of industrial explosives in my country. For powdery ammonium oil explosives, due to the high powder density, the sensitization effect of using traditional wood powder as a regulator is poor. 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. When emulsion explosives use chemical foaming technology to generate bubbles or add expanded perlite powder for sensitization, bubble instability, rupture and escape, and uneven dispersion often occur, which affect the application of emulsion explosives. Therefore, f...
Claims
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IPC IPC(8): C06B23/00
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