Display shell with modular open-bud charging structure and preparation method thereof

A budding drug and modular technology, applied in the direction of offensive equipment, pyrotechnics, weapon types, etc., can solve the problems of not reaching the use effect of the budding drug, unfavorable safety and environmental protection, and unsatisfactory ignition performance, so as to improve viewing Effect, beneficial to overall ignition, and the effect of solving the problem of insufficient combustion or residual drug

Active Publication Date: 2013-08-07
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of smokeless fireworks with a micropore structure as the bud-opening drug has an unsatisfactory bud-opening effect. The main problem is that the ignition performance is not ideal, and the firing rate of bright beads is low when the charging conditions are not suitable. , the diameter of the explosion is too small to achieve the effect of traditional budding medicines
In the preparation process of granular microporous fireworks, the above problems cannot be completely solved by adding sensitizers or ignition performance enhancers.
In addition, when using granular microporous smokeless fireworks medicine directly as a bud opening medicine for making fireworks shells, each shot needs to be weighed in advance, and the particles are prone to static electricity and adhere to the surroundings of the shell shell, which brings great pressure to the charge. Some difficulties have been raised, and these problems have brought potential safety hazards in the production process of fireworks shells
In addition, the use of granular fireworks charges often leads to the problem of drug particles remaining during the discharge process, which is also unfavorable to the safety and environmental protection of the discharge process.

Method used

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  • Display shell with modular open-bud charging structure and preparation method thereof
  • Display shell with modular open-bud charging structure and preparation method thereof
  • Display shell with modular open-bud charging structure and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0043] The preparation method of the bud-opening drug block is as follows: firstly, according to the requirements of charge density, select granular micro-pore fireworks drugs with different densities, and bond the smokeless fireworks drug particles into block solids through an organic adhesive; According to the fire performance requirements, different types and dosages of ignition performance enhancers can be mixed in the particle bonding and molding process; then molded by compression molding, and finally dried to obtain bud-opening medicine blocks. The composition of the bud-opening drug block and its preparation method are protected in the patent "Modular bud-opening drug for fireworks shells and its preparation method" applied on the same day.

[0044] In order to better illustrate the implementation of the present invention, the following examples are set forth, and these processes and process conditions do not represent the entirety of the invention. As long as the proc...

Embodiment 1

[0046] combine figure 1 , choose the 3-inch firework shell as an example, use the modular firework shell opening medicine block as the opening medicine, the diameter of the outer spherical shell is 76mm, the thickness is 3mm, and the diameter of the bright bead is 10mm.

[0047]Granular microporous fireworks medicine is prepared by using single-base waste powder containing 97.0% nitrocellulose and 1.0% diphenylamine (stabilizer). To the molding equipment, add ethyl acetate solvent 10 times the mass of the pellets under stirring, stir and dissolve at a temperature of 45°C-50°C for 30-60min, and then continuously add 0.5% aqueous solution of potassium nitrate to the system; Carry out emulsification and foaming operation under stirring state. In this step, continue to add 0.5% potassium nitrate aqueous solution. The amount of potassium nitrate aqueous solution added is 6 times of the mass of the granules, and then continue stirring at 50-60°C for 30min-60min , when the system te...

Embodiment 2

[0053] Granular micro-pore fireworks were prepared from raw materials with nitrocellulose content of 99% and diphenylamine (stabilizer) content of 0.5%. Add ethyl acetate solvent 10 times the mass of the pellets under stirring, stir and dissolve at 45°C-50°C for 30-60min, then continuously add 0.5% potassium nitrate aqueous solution to the system, potassium nitrate is used as a sensitizer Or ignition performance enhancer; carry out emulsification and foaming operation under stirring state, continue to add 0.5% potassium nitrate aqueous solution in this step, the amount of potassium nitrate aqueous solution added is 6 times of the mass of the pellets, and then in 50-60 ℃ Continue to stir at high temperature for 30min to 60min. When the system temperature is adjusted to 65°C-68°C, add 6 times the mass of the raw material drug containing dispersant and 0.5% potassium nitrate aqueous solution into the system to disperse into balls, gelatin as dispersant , the amount of dispersant ...

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Abstract

The invention discloses a display shell with a modular open-bud charging structure. The display shell comprises an outer shell, a delay ignition harness, bright beads and open-bud powder blocks, wherein the outer shell, the delay ignition harness and the bright beads can be made of traditional materials and have traditional structures; and the open-bud powder blocks are combined and charged in a ball shell, and a hollow structure is formed in the center of the open-bud charging structure. A preparation method of the display shell with the modular open-bud charging structure comprises the following steps of: arranging bright beads to the inner side of the ball shell of the display shell; directly charging the prepared modular powder blocks into one semi-ball shell; charging powder into theother semi-ball shell with the same powder charging sequence; and buckling the two semi-modular blocks with each other, and applying paper to the surface of the shell and drying. The display shell structure and the preparation method contribute to overall ignition, the problem of insufficient combustion or powder residue when particular microporous firework powder is taken as open-bud powder can be completely solved, and the enjoyment effect and environmentally friendly performance are improved. Furthermore, the operation of the display shell production process is simplified, and the safety of manufacture process and storage and transportation process of firework products is improved.

Description

technical field [0001] The invention belongs to the bud opening technology of fireworks bombs, in particular to a fireworks bomb with a modular bud opening charging structure and a preparation method thereof. Background technique [0002] At present, due to its environmental protection and safe use, smokeless fireworks have become an ideal substitute for black powder for fireworks or other propellant charges, and have been highly valued by the fireworks and firecracker industry. However, the use of smokeless fireworks with a micropore structure as the bud-opening drug has an unsatisfactory bud-opening effect. The main problem is that the ignition performance is not ideal, and the firing rate of bright beads is low when the charging conditions are not suitable. , the explosion diameter is too small to reach the effect of traditional budding medicines. In the preparation process of granular micropore fireworks, the above problems cannot be completely solved by adding sensitiz...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F42B4/00F42B4/30
Inventor 蔺向阳潘仁明李生有袁超
Owner NANJING UNIV OF SCI & TECH
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