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Propellant powder and preparation method

A technology of propellant and adhesive, which is used in explosives processing equipment, explosives, offensive equipment, etc., can solve the problems of low ignition point, high impact ignition rate, easy to be affected by moisture, etc., and achieves low friction sensitivity and impact sensitivity, and low moisture absorption rate. Effect

Inactive Publication Date: 2018-12-07
胡惠娟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are disadvantages such as easy to be affected by moisture, low safety performance, and easy to cause environmental pollution (the smog is relatively large)
In addition, this type of black powder has a low ignition point (398°C), sulfur content, high friction sensitivity, impact sensitivity and moisture absorption rate
[0003] The existing sulfur-free propellant consists of potassium perchlorate, charcoal, potassium hydrogen terephthalate and resin. This sulfur-free propellant has the problems of being susceptible to moisture and high rate of impact ignition, and cannot be applied to production and daily life. Therefore, It is necessary to develop a sulfur-free propellant that is safe, environmentally friendly and has good gunpowder performance

Method used

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  • Propellant powder and preparation method

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preparation example Construction

[0036] According to another aspect of the present invention there is provided a method for preparing a propellant, the preparation method comprising:

[0037] Weigh potassium permanganate, binder, potassium hydrogen phthalate and combustible agent according to the weight of the appeal;

[0038] Potassium permanganate, adhesives, potassium hydrogen phthalate, and combustibles were screened through 100 mesh and 200 mesh combined sieves, and potassium permanganate, adhesives, and Potassium hydrogen phthalate and flammable agents;

[0039] mixing medicines, mixing the potassium permanganate, binder and the combustible agent to prepare mixed powder;

[0040] Wet mixing, mixing the mixed powder and the potassium hydrogen phthalate with water while stirring to prepare a mixed ointment;

[0041] To granulate, put the mixed ointment into a granulator to make propellant granules.

[0042] As a preferred solution, drying is also included, and the propellant particles are placed in a t...

Embodiment 1

[0044] Take by weight 50 parts of potassium permanganate, 8 parts of adhesive, 20 parts of potassium hydrogen phthalate and 20 parts of combustible agent;

[0045] Wherein, based on the total weight of the combustible agent, the consumption of the nitrocellulose is 10% by weight, and the consumption of the charcoal powder is 90% by weight;

[0046] Potassium permanganate, adhesives, potassium hydrogen phthalate, and combustibles were screened through 100 mesh and 200 mesh combined sieves, and potassium permanganate, adhesives, and Potassium hydrogen phthalate and flammable agents;

[0047] mixing medicines, mixing the potassium permanganate, binder and the combustible agent to prepare mixed powder;

[0048] Wet mixing, mixing the mixed powder and the potassium hydrogen phthalate with water while stirring to prepare a mixed ointment;

[0049] To granulate, put the mixed ointment into a granulator to make propellant granules.

[0050] Drying, placing the propellant particles ...

Embodiment 2

[0052] Take by weighing 30 parts of potassium permanganate, 20 parts of binder, 10 parts of potassium hydrogen phthalate and 40 parts of combustible agent according to the weight of the appeal;

[0053] Wherein, based on the total weight of the combustible agent, the consumption of the nitrocellulose is 5% by weight, and the consumption of the charcoal powder is 95% by weight;

[0054] Potassium permanganate, adhesives, potassium hydrogen phthalate, and combustibles were screened through 100 mesh and 200 mesh combined sieves, and potassium permanganate, adhesives, and Potassium hydrogen phthalate and flammable agents;

[0055] mixing medicines, mixing the potassium permanganate, binder and the combustible agent to prepare mixed powder;

[0056] Wet mixing, mixing the mixed powder and the potassium hydrogen phthalate with water while stirring to prepare a mixed ointment;

[0057] To granulate, put the mixed ointment into a granulator to make propellant granules.

[0058] Dry...

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Abstract

The invention provides propellant powder and a preparation method. The propellant powder comprises 30-50 parts of potassium permanganate, 8-20 parts of a binding agent, 10-20 parts of potassium hydrogen phthalate and 20-40 parts of a combustible agent, wherein the combustible agent is a mixture of nitrocotton and charcoal powder. The propellant powder has low friction sensitivity and impact sensitivity, low moisture absorption rate and strong thrust and meanwhile reduces the environmental pollution.

Description

technical field [0001] The invention belongs to the field of gunpowder, and more specifically relates to a propellant and a preparation method. Background technique [0002] With the development of society, propellants are widely used in daily life and celebration activities. Most of the existing propellants are black powder, whose main components are potassium nitrate, sulfur, fir powder, etc., which adopt traditional manufacturing methods. It has been used for hundreds of years. The main working principle is to ignite the black powder through the fuse to generate upward power to push the fireworks cartridge into the air. There are disadvantages such as easy to be affected by moisture, low safety performance, and easy to cause environmental pollution (the smog is relatively large). In addition, this type of black powder has a low ignition point (398°C), sulfur content, high friction sensitivity, impact sensitivity and moisture absorption rate. [0003] The existing sulfur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B25/28C06B21/00
CPCC06B21/0066C06B25/28
Inventor 胡惠娟
Owner 胡惠娟
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