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Smokeless type firework shell opening ammunition capable of improving ignition capacity and preparation method for opening ammunition

A technology for shells and buds, which is applied to the field of buds for smokeless shells and their preparation, can solve the problems of residual powder, particle adhesion, insufficient ignition ability, etc., and achieves the improvement of firing rate and ignition Ability enhancement, effect of improving ignition ability

Inactive Publication Date: 2012-07-18
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the preparation process of granular microporous fireworks, the problem of insufficient ignition ability can be better solved by adding sensitizers or ignition performance enhancers, but many sensitizers or ignition performance enhancers are also in the combustion process. also produces some smoke
When directly using granular microporous smokeless fireworks medicine as the budding medicine to make fireworks bombs, each shot needs to be weighed in advance, and the particles are prone to static electricity and adhere to the surroundings of the fireworks shell, which brings some difficulties to the charge. , these problems have brought safety hazards in the production process of fireworks charges
In addition, when the charging conditions of the granular microporous smokeless fireworks are not suitable, there will be problems of drug particles remaining in the firing process, which is not good for the safety and environmental protection of the firing process.

Method used

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  • Smokeless type firework shell opening ammunition capable of improving ignition capacity and preparation method for opening ammunition
  • Smokeless type firework shell opening ammunition capable of improving ignition capacity and preparation method for opening ammunition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Granular microporous fireworks were prepared from single-base waste gunpowder containing 97.0% of nitrocellulose and 1.0% of diphenylamine (stabilizer). The single-base waste powder is preliminarily crushed in the presence of a large amount of water, and the particle diameter is controlled to be no more than 3mm. The single-base waste powder with water is added to the forming reactor, and the moisture content of the wet single-base waste powder is 15%. -30%, add ethyl acetate solvent 10 times the mass of single-base waste propellant powder under stirring, stir and dissolve at 45°C-60°C for 30-60min, and then continuously add water to the material system in the forming reactor Carry out the emulsification and foaming operation under the stirring state, continue to add water in this step, the quality of the added water is 6 times of the mass of the single-base spent powder. Then, continue to stir at 50-60°C for 30min to 60min, and when the temperature of the material in t...

Embodiment 2

[0037] The granulated microporous fireworks medicine is prepared by using the raw material medicine granules with nitrocellulose content of 99% and diphenylamine (stabilizer) content of 0.5%. First add the raw material medicine pellets into the forming reactor, add ethyl acetate solvent 10 times the mass of the raw medicine medicine pellets under stirring, stir and dissolve at 45°C-60°C for 30-60min, and then continuously pour into the system Add mass concentration and be 0.5% potassium nitrate aqueous solution; Carry out emulsification and foaming operation under agitation state, continue to add mass concentration in this step and be 0.5% potassium nitrate aqueous solution, the amount of the potassium nitrate aqueous solution that adds is the 6% of raw material drug quality and then continue to stir at 50-60°C for 30min-60min. When the system temperature is adjusted to 65°C-68°C, add an aqueous solution containing 0.5% gelatin that is 6 times the mass of the raw material granu...

Embodiment 3-16

[0041] The same process and raw materials as in Example 1 were used to prepare granular micropore fireworks medicine.

[0042] A similar process to that of Example 1 is used to prepare the block of the modular bud-opening medicine, only the type and amount of the ignition performance enhancer used in the molding process of the modular bud-opening medicine are changed, the performance of the obtained modular medicine and the ability of the fireworks to pop See the table below for a comparison of the results of the bud tests.

[0043]

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Abstract

The invention discloses a smokeless type firework shell opening ammunition capable of improving the ignition capacity and a preparation method for the opening ammunition. An ignition performance enhancer which has relatively high melting point and can improve the ignition capacity without influencing the environment friendliness is added during preparation of the modular opening ammunition for a firework shell. The method comprises the following steps of: preparing granular micro-hole firework ammunitions; and adhering the granular micro-hole firework ammunitions to form the modular smokeless opening ammunition. The adhering forming process of the modular smokeless opening ammunition capable of improving the ignition capacity comprises the following steps of: mixing an adhesive for forming, an ignition performance enhancer and the granular micro-hole firework ammunitions; preparing an ammunition block by the mixture according to a die-casting method; and finally drying. The modular opening ammunition remarkably improves the ignition capacity of a bead without influencing the environment friendliness of a firework product and the process safety for manufacturing a firework shell.

Description

technical field [0001] The invention belongs to the bud-opening technology of fireworks bombs, in particular to a bud-opening drug for smokeless fireworks bombs with improved ignition capability and a preparation method thereof. Background technique [0002] The traditional fireworks popping explosives are made of black powder as the main explosive material. Usually, black powder is mixed with a small amount of binder, and a large amount of low-density filling materials such as rice husk or cottonseed husk are added. The black powder sticks to the surface of the granulated filler and dries to become a granulated budding agent. Due to the wide source of raw materials and the simple production process, this kind of budding medicine has been used for hundreds of years, but the use of natural materials such as rice husks also brings about unstable performance. This budding medicine also can produce a large amount of smog when filling materials such as black powder and rice husk...

Claims

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Application Information

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IPC IPC(8): C06B25/20
Inventor 潘仁明蔺向阳李生有
Owner NANJING UNIV OF SCI & TECH
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