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Bass display shell lift-off agent and preparation method thereof

A technology for shells and medicaments, applied in the field of pyrotechnics, can solve the problems of increasing burning speed, loud sound, etc., and achieve the effects of good compression formability, high energy and good stability

Inactive Publication Date: 2020-08-04
江西吉润花炮新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem of loud sound after the explosion of the existing firework bomb lift-off agent, and to achieve the purpose of increasing the burning rate, and proposes a low-frequency firework bomb lift-off agent and its preparation method

Method used

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  • Bass display shell lift-off agent and preparation method thereof
  • Bass display shell lift-off agent and preparation method thereof
  • Bass display shell lift-off agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of low-frequency fireworks shell lift-off medicine, its formula is as follows:

[0028]

[0029] The nitrogen content of the nitrobamboo cellulose in the components is 12.5%;

[0030] A kind of preparation method of the medicament for launching into the air of a bass display shell, the specific steps are as follows:

[0031] Step 1. After preliminary dehydration of nitrobamboo cellulose, and then forming a layer with a larger surface area on the filter conveyor belt, it is placed in a strong hot air flow environment, driven by the filter screen, on a vacuum filter belt thermal dehydrator Complete the flooding of nitrobamboo cellulose to obtain 70g of water-dispelling nitrobamboo cellulose, and the water content of nitrobamboo cellulose after flooding is 3% through Karl Fischer reagent; The amount of water is controlled at 1% to 5% by rapid determination of Karl Fischer reagent;

[0032] Step 2: Divide the nitrobamboo cellulose after water displacement in ste...

Embodiment 2

[0039] A kind of low-frequency fireworks shell lift-off medicine, its formula is as follows:

[0040]

[0041]

[0042] The nitrogen content of the nitrocellulose in the components is 12%;

[0043] A kind of preparation method of the medicament for launching into the air of a bass display shell, the specific steps are as follows:

[0044] Step 1. After preliminary dehydration of nitrobamboo cellulose, and then forming a layer with a larger surface area on the filter conveyor belt, it is placed in a strong hot air flow environment, driven by the filter screen, on a vacuum filter belt thermal dehydrator Complete the flooding of nitrobamboo cellulose to obtain 55 kg of water-dispelling nitrobamboo cellulose, and the water content of the nitrobamboo cellulose after water flooding is quickly determined to be 4% by Karl Fischer reagent;

[0045] Step 2, divide the nitrobamboo cellulose after water displacement in step 1 into Group I, Group II, and Group III according to the m...

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Abstract

The invention relates to a bass display shell lift-off agent and a preparation method thereof, and belongs to the field of pyrotechnic compositions. The main components comprise nitrified bamboo cellulose, potassium nitrate, expandable graphite, maleic anhydride grafted ethylene propylene diene monomer and a component A, wherein the component A is any one of melamine and dicyandiamide, according to the preparation method of the bass display shell lift-off agent, the preparation process is simple and easy to operate, no high-temperature pressurizing and depressurizing device is used in the preparation process, operation is safe and reliable, and industrial production can be achieved. The prepared agent product is relatively high in yield, and the bass display shell lift-off agent prepared by the product is uniform in particle size, good in compression formability, high in medicament energy, safe to operate, stable in reaction, good in stability and low in cost.

Description

technical field [0001] The invention relates to a low-frequency fireworks shell lift-off agent and a preparation method thereof, belonging to the field of pyrotechnic agents. Background technique [0002] The quality of the fireworks shell lift-off agent generally requires compactness, good mechanical strength, and a density of 1.58-1.64g / cm 3 . Only when the above requirements are met can the regularity of parallel layer combustion be maintained. But in some lift-off fireworks shells (such as colored, shredded paper fireworks, etc.) and multicolored fireworks shells, if dense propellants are used, the combustion layer must be thinned to ensure that the medicament burns out when the fireworks projectiles fly out. However, there are many practical difficulties in the production of propellants with a thinner combustion layer. In order to achieve the purpose of increasing the burning rate and having a lower sound at the same time, a kind of low-pitched fireworks bomb lift-of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B31/22C06B21/00C06B23/00
CPCC06B21/00C06B23/00C06B31/22
Inventor 刘吉平吉伟生于保藏李琪军刘克普周耀明
Owner 江西吉润花炮新材料科技有限公司