Cellulose powder for cold-light spraying fireworks and preparation method thereof

A technology of cellulose powder and nitrocellulose, applied in offensive equipment, explosives processing equipment, explosives, etc., can solve the problems of low sensitivity of single-base powder, easy explosion, single-base powder cannot meet the needs of the fireworks industry, etc., and achieve the goal of fireworks Improved safety performance, delayed burning speed, and low cost effects

Inactive Publication Date: 2019-02-12
彭隆章
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And with the innovation of military science and technology, there will be less and less single-base powder flowing to the fireworks industry, and the quantity of single-base powder can no longer meet the needs of the fireworks industry.
[0004] And the sensitivity of the single base powder is low, it contains a small amount of nitroglycerin, which is very easy to explode

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In parts by weight, 90 parts by weight of nitrocellulose (12.5% ​​nitrogen content, 25% water content) is put into the mixer;

[0023] Put 2 parts by weight of pigment, 3 parts by weight of graphite, 2 parts by weight of diphenylamine, and 3 parts by weight of calcium nitrate into the methanol solution and stir evenly until the pigment, diphenylamine and calcium nitrate are all dissolved;

[0024] Turn on the mixer, slowly pour the above solution into the mixer, and mix for 45 minutes until the nitrocellulose becomes granular;

[0025] Pour out the above mixture from the mixer, and dry at a temperature not exceeding 70 degrees Celsius until the water content of the mixture is less than 5%.

[0026] wrap up and store.

Embodiment 2

[0028] In parts by weight, 85 parts by weight of nitrocellulose (10% nitrogen content, 27% water content) are put into the mixer;

[0029] Put 2 parts by weight of pigment, 3 parts by weight of graphite, 2 parts by weight of diphenylamine, and 6 parts by weight of calcium nitrate into the methanol solution and stir evenly until the pigment, diphenylamine and calcium nitrate are all dissolved;

[0030] Turn on the mixer, slowly pour the above solution into the mixer, and mix for 60 minutes until the nitrocellulose becomes granular;

[0031] Pour out the above mixture from the mixer, and dry at a temperature not exceeding 70 degrees Celsius until the water content of the mixture is less than 5%.

[0032] wrap up and store.

Embodiment 3

[0034] In parts by weight, 85 parts by weight of nitrocellulose (12% nitrogen content, 23% water content) are put into the mixer;

[0035] 3 parts by weight of pigment, 4 parts by weight of graphite, 3 parts by weight of diphenylamine, and 8 parts by weight of calcium nitrate are put into methanol solution and stirred evenly until the pigment, diphenylamine and calcium nitrate are all dissolved;

[0036] Turn on the mixer, slowly pour the above solution into the mixer, and mix for 30 minutes until the nitrocellulose becomes granular;

[0037] Pour out the above mixture from the mixer, and dry at a temperature not exceeding 70 degrees Celsius until the water content of the mixture is less than 5%.

[0038] wrap up and store.

[0039] The cellulose powder obtained from the above three embodiments is tested for its sensitivity, friction sensitivity and burning speed,

[0040] The sensitivity is tested by MBZ-1 drop hammer tester. The weight of the drop hammer is 50KG and the he...

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Abstract

The invention discloses cellulose powder for cold-light spraying fireworks. The cellulose powder is prepared from the following components in parts by weight: 85 to 90 parts of nitrocellulose, 2 to 3parts of diphenylamine, 3 to 8 parts of calcium nitrate and 3 to 4 parts of graphite, wherein the nitrogen content of the nitrocellulose is less than or equal to 12.5 percent and the water content is23 to 27 percent. Smokeless propellant powder disclosed by the invention has better explosive stability, moisture resistance and environment friendliness and is suitable for various cold-light fireworks to use.

Description

technical field [0001] The invention relates to the technical field of fireworks propellants, in particular to a cellulose powder for luminescence spraying fireworks and a preparation method thereof. Background technique [0002] Cold light fireworks refer to cold light smokeless fireworks made of metal powder with a low ignition point and processed in a certain proportion. . [0003] Existing luminescent fireworks usually use single-base powder as the main raw material, such as the Chinese patent with publication number CN1431181A, which uses the single-base powder of expired guns and shells as the main raw material, and simultaneously adds ammonium chromate and charcoal. However, the single-base powder belongs to the retired gunpowder of the national military industry, and its control and sales are very strict. And with the innovation of military science and technology, there will be less and less single-base powder flowing to the fireworks industry, and the quantity of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B31/24C06B21/00
CPCC06B21/0016C06B31/24
Inventor 彭隆章
Owner 彭隆章
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