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Propellant and preparation method

A technology of propellant and adhesive, used in explosives processing equipment, explosives, offensive equipment and other directions, can solve the problems of high impact sensitivity and moisture absorption rate, low ignition point, environmental pollution, etc.

Inactive Publication Date: 2018-11-20
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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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] Potassium permanganate, binder, potassium hydrogen phthalate, combustible agent and ferric oxide are weighed according to the weight of the appeal;

[0038] Screen potassium permanganate, adhesives, potassium hydrogen phthalate, combustibles and iron tetroxide through 100 mesh and 200 mesh combined sieves, and select potassium permanganate with a particle size between 100 mesh and 200 mesh , Adhesives, potassium hydrogen phthalate, combustibles and ferric oxide;

[0039] Mixing medicine, mixing the potassium permanganate, binder, combustible agent and ferric oxide 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.

[...

Embodiment 1

[0044] Take by weight 50 parts of potassium permanganate, 8 parts of binder, 20 parts of potassium hydrogen phthalate, 20 parts of combustible agent, 10 parts of ferric oxide;

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

[0046] Screen potassium permanganate, adhesives, potassium hydrogen phthalate, combustibles and iron tetroxide through 100 mesh and 200 mesh combined sieves, and select potassium permanganate with a particle size between 100 mesh and 200 mesh , Adhesives, potassium hydrogen phthalate, combustibles and ferric oxide;

[0047] Mixing medicine, mixing the potassium permanganate, binder, combustible agent and ferric oxide 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 ointme...

Embodiment 2

[0052] Take by weighing 30 parts of potassium permanganate, 20 parts of binding agent, 10 parts of potassium hydrogen phthalate, 40 parts of combustible agent, 5 parts of ferroferric oxide by weight of appeal;

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

[0054] Screen potassium permanganate, adhesives, potassium hydrogen phthalate, combustibles and iron tetroxide through 100 mesh and 200 mesh combined sieves, and select potassium permanganate with a particle size between 100 mesh and 200 mesh , Adhesives, potassium hydrogen phthalate, combustibles and ferric oxide;

[0055] Mixing medicine, mixing the potassium permanganate, binder, combustible agent and ferric oxide 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] T...

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Abstract

The invention provides a propellant and a preparation method. The propellant is prepared from the following components: 30-50 parts of potassium permanganate, 8-20 parts of an adhesive, 10-20 parts ofpotassium hydrogen phthalate, 20-40 parts of a combustible agent and 5-10 parts of iron(II,III) oxide, wherein the combustible agent is a mixture of pearl powder and charcoal powder. The propellant has low friction sensitivity and impact sensitivity, low moisture absorption rate and strong thrust, and environmental pollution is reduced.

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): C06B23/00C06B21/00
CPCC06B21/0066C06B23/00
Inventor 胡惠娟
Owner 胡惠娟
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