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Solid fuel for torch burner and preparation method thereof

A technology of solid fuel and torch combustion, which is applied in the field of hand-held solid fuel torch charge, and can solve the problems that fuel cannot be ignited normally

Active Publication Date: 2013-03-06
THE 31TH INST OF THE THIRD ACAD OF RES CASIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical solution of the present invention is to overcome the shortcomings of the prior art that the fuel cannot be normally ignited in low-temperature, low-pressure, and oxygen-deficient plateau areas, and provide a solid fuel torch charge suitable for low-temperature, low-pressure, and oxygen-deficient areas

Method used

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  • Solid fuel for torch burner and preparation method thereof
  • Solid fuel for torch burner and preparation method thereof
  • Solid fuel for torch burner and preparation method thereof

Examples

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Effect test

preparation example Construction

[0051] The specific steps of the preparation method of ignition charge, transition charge and main charge are as follows:

[0052] a) After pulverizing the oxidant ammonium perchlorate and ammonium nitrate respectively, cross 200 meshes to get the sieve;

[0053] b) After pulverizing the fuel lignocellulose, pass through 200 meshes to get the sieve;

[0054] c) After crushing the flame colorant strontium carbonate, pass through 150 meshes to get the sieve;

[0055] d) dissolving shellac in an appropriate amount of alcohol to prepare a 5% to 10% alcohol solution;

[0056] e) oxidant and fuel are sieved and mixed evenly with a 60-mesh sieve;

[0057] f) then pour the shellac alcohol solution into the sieve and mix the material evenly;

[0058] g) granulating with 20 mesh sieves;

[0059] h) Dry naturally for 2 hours, then dry at 50°C for 24 hours;

[0060] i) The measured water content should be less than 0.2%, and the tested components meet the requirements;

[0061] j) T...

Embodiment 1

[0064] There are three kinds of formulas as the ignition medicine formula:

[0065] Recipe 1:

[0066] Ammonium perchlorate: 75%;

[0067] Lignocellulose powder: 20%;

[0068] Strontium carbonate: 0%;

[0069] Organic Shellac: 5%.

[0070] Recipe 2:

[0071] Ammonium perchlorate: 76%;

[0072] Lignocellulose powder: 19%;

[0073] Strontium carbonate: 0.5%;

[0074] Organic Shellac: 4.5%.

[0075] Recipe 3:

[0076] Ammonium perchlorate: 77%;

[0077] Lignocellulose powder: 18%;

[0078] Strontium carbonate: 1%;

[0079] Organic Shellac: 4%.

[0080] The oxygen difference in the above formula is n=-(13~14)g / 100g, the burning rate at 0.3bar and -50°C is about 0.7mm / s, non-hygroscopic and easy to ignite, in solid torch charge Used as a igniter.

Embodiment 2

[0082] There are three kinds of formulations as the main charge formula:

[0083] Recipe 1:

[0084] Ammonium perchlorate: 58%;

[0085] Ammonium nitrate: 17%;

[0086] Lignocellulose powder: 20%;

[0087] Strontium carbonate: 1%;

[0088] Organic Shellac: 4%.

[0089] Recipe 2:

[0090] Ammonium perchlorate: 60%;

[0091] Ammonium nitrate: 16%;

[0092] Lignocellulose powder: 19%;

[0093] Strontium carbonate: 0%;

[0094] Organic Shellac: 5%.

[0095] Recipe 3:

[0096] Ammonium perchlorate: 62%;

[0097] Ammonium nitrate: 13%;

[0098] Lignocellulose powder: 18%;

[0099] Strontium carbonate: 2%;

[0100] Organic Shellac: 5%.

[0101] The oxygen difference in the above formulation is n=-(21~23)g / 100g, the burning rate at 0.3bar and -45°C is about 0.5mm / s, it is hygroscopic, and its ignition performance is slightly worse than that of formulation 1. It is used as the main charge in the solid flare charge.

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Abstract

The invention pertains to the technical field of solid fuel and provides a solid fuel for a torch burner and a preparation method thereof. The components of the solid fuel are as follows: ammonium perchlorate and ammonium nitrate; lignocellulose powder; strontium carbonate; and organic shell-lac[shellac]. The preparation method comprises the following steps: oxidants such as ammonium perchlorate, ammonium nitrate, lignocellulose powder, strontium carbonate are crushed; shell-lac alcoholic solution is prepared from the shell-lac; then the shell-lac alcoholic solution is poured into a screen and mixed evenly and the materials are wetted and mixed evenly; granules are made with 20-mesh screens, air-dried for 2h and then oven-dried for 24h at the temperature of 50 DEG C; and the dried and analyzed grains are layered and press-packaged into a cladding sleeve through multiple times a valving die coining press and shaped after being filled with drugs. The solid fuel and the preparation method have the advantages that the filled solid drug for the burning system can be burned reliably at an average linear burning speed of 0.45mm / s to 0.55mm / s in the environment where the temperature is always minus 45 DEG C and the pressure is always low and about 0.3 bar and in the raining and snowing environment or windstorm environment at a speed of 50m / s.

Description

technical field [0001] The invention relates to a hand-held solid fuel torch charge suitable for special environmental conditions. The charge is made of a casein rubber kraft paper tube as a coating layer, and the charge column is made of a novel pyrotechnic charge that uses composite oxidant and lignocellulose powder as fuel. pellets compressed. Background technique [0002] Usually, the torches used in sports events and major celebrations use liquid hydrocarbon fuels. When this type of fuel is fully burned, it usually emits a light blue or light yellow transparent flame, but due to the lack of oxygen in the air at high altitudes, hydrocarbon fuels usually do not burn fully; and in an environment with strong background light and high ambient wind speed, the flame The visibility and shape of the fuel are poor; especially under low temperature conditions, it is difficult to ensure the continuous and stable supply of liquid fuel due to the decrease of saturated vapor pressure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L5/40F23K1/00
CPCY02E50/30
Inventor 戚磊朱家元吕永忱薛亮谢海波
Owner THE 31TH INST OF THE THIRD ACAD OF RES CASIC
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