Lift-off agent for safe aerial shells and preparation method thereof

A fireworks and safe technology, applied in the field of pyrotechnics, can solve the problems of human or environmental threats, increase the burning rate and other problems, and achieve the effects of uniform particle size, good compression formability and good stability

Inactive Publication Date: 2020-07-17
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 threats to people or the environment after the explosion of the existing firework bomb lift-off agent, and to achieve the purpose of increasing the burning rate, and proposes a safe firework bomb lift-off agent and its preparation method

Method used

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  • Lift-off agent for safe aerial shells and preparation method thereof
  • Lift-off agent for safe aerial shells and preparation method thereof
  • Lift-off agent for safe aerial shells and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of safe fireworks shell lift-off agent, its formula is as follows:

[0029]

[0030] The nitrogen content of the nitrocellulose in the component is 11%

[0031] A kind of its preparation method of safe type fireworks bomb lift-off agent, comprises the following steps:

[0032] 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 75g of water-dispelling nitrobamboo cellulose, and the water content of the nitrobamboo cellulose after water flooding was quickly determined to be 3% by Karl Fischer reagent;

[0033] Step 2: Divide the nitrobamboo cellulose after flooding in step 1 into Group I and Group II according to the mass ratio of 3:10; place 13.3 g of nitrobamboo cellulose in Group I in 50 g...

Embodiment 2

[0040] A kind of safe fireworks shell lift-off agent, its formula is as follows:

[0041]

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

[0043] A kind of its preparation method of safe type fireworks bomb lift-off agent, comprises the following steps:

[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 85kg of water-dispelling nitrobamboo cellulose, and the water content of the nitrobamboo cellulose after water flooding was quickly determined to be 2% by Karl Fischer reagent;

[0045] Step 2: Divide the nitrobamboo cellulose after flooding in step 1 into Group I and Group II according to the mass ratio of 2:10; place 14.2 kg of nitrobamboo cellulose in Group I in 40...

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PUM

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Abstract

The invention relates to a lift-off agent for safe aerial shells and a preparation method thereof, belonging to the field of pyrotechnic compositions. The agent comprises the following components: nitrified bamboo cellulose, potassium nitrate, a component A and a component B, wherein the component A is any one selected from melamine and dicyandiamide; and the component B is any one selected from guanidine salt, aminoguanidine salt, diaminoguanidine salt and triaminoguanidine salt. The preparation method is simple in process and easy to operate, a high-temperature pressurizing and depressurizing device is not used in the preparation process, operation is safe and reliable, and industrial production can be achieved. The yield of the prepared agent is high, and particles of the produced lift-off agent for safe aerial shells are uniform in particle size and good in compression formability.

Description

technical field [0001] The invention relates to a safety type 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 at the same time, it is safe for people and the environment, it can also be made int...

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 刘吉平于保藏李琪军刘克普吉伟生周天驰
Owner 江西吉润花炮新材料科技有限公司
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