Medium and low temperature energetic heat source for cigarette and preparation method thereof

A heat source and low temperature technology, applied in the field of tobacco, can solve the problems of high burning speed, high burning temperature, complex formula components, etc., and achieve the effect of reducing burning speed and lowering burning temperature

Inactive Publication Date: 2017-09-12
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Energetic materials are mainly composed of combustibles and oxidants, which can make the mixed materials undergo intermolecular or intramolecular redox reactions without introducing oxygen in the ambient air to produce gas-solid phase diffusion combustion, and the combustion process is relatively stable; The low-temperature combustion speed and temperature have a strong dependence on the oxidant. For example, the patent CN105533800A lists the oxidant and combustible agent used in the current medium-low temperature heat source, but its formula has complex components, relatively high combustion temperature and relatively fast combustion speed. big problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The energetic heat source formula in this example is composed of the following raw materials in mass fractions: 21% phenolic resin, 23% calcium carbonate, and 56% strontium nitrate. The raw materials are passed through a 70-mesh molecular sieve and dried at 30°C for 3 hours. The diameter is 0.2mm, and the raw material is dried at 30°C for 3 hours, and after mixing, it is extruded into a heat source by relying on the viscosity of the phenolic resin itself, and then its combustion performance is tested. The test results show:

[0030] The combustion state of the heat source is smoldering;

[0031] The combustion temperature of the energy-containing heat source formula is 430°C.

[0032] The burning speed of the formula containing energy heat source is 1.0mm / min.

Embodiment 2

[0034] The energetic heat source formula in this example is composed of the following raw materials in mass fraction: 7%-19% phenolic resin, 18% calcium carbonate, 63%-75% strontium nitrate, pass the raw materials through 70 mesh molecular sieves, and dry them at 30°C After 3 hours, the particle size of the raw material is 0.2mm. Dry the raw material at 30°C for 3 hours, mix it and extrude it into a heat source by relying on the viscosity of the phenolic resin itself, and then test its combustion performance. The test results show:

[0035] The combustion temperature of the energy-containing heat source formula is 700°C-1000°C;

[0036] The burning speed of the formula containing energy heat source is 7-13mm / min;

[0037] The burning state of the formula containing energy heat source is continuous open flame burning.

Embodiment 3

[0039] The energy-containing heat source formula in this embodiment is composed of the following raw materials in mass fraction: 21% phenolic resin, 23% calcium carbonate, 10% potassium nitrate, 46% strontium nitrate, the raw materials are passed through a 70-mesh molecular sieve, and dried at 30 ° C for 3 hour, the particle size of the raw material is 0.2mm, and the raw material is dried at 30°C for 3 hours, and after mixing, it is extruded into a heat source by relying on the viscosity of the phenolic resin itself, and then its combustion performance is tested. The test results show:

[0040] The NOx concentration produced by the combustion of the energy-containing heat source formula is 780ppm;

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PUM

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Abstract

The invention discloses a medium and low temperature energetic heat source for heating a cigarette and a preparation method of the medium and low temperature energetic heat source. The heat source comprises the components of 17%-32% of phenolic resin, 60%-63% of strontium nitrate and 5%-23% of assistant by weight in the formula, and the particle size is 0.1 mm to 0.2 mm. The heat source is ignited without external oxygen supply, the produced medium and low temperature is used for pyrolysis of a tobacco shred, and the contents of toxic and hazardous gases produced in the high temperature combustion of the tobacco shred are effectively reduced. The heat source, when applied to heating the tobacco, effectively inhibits the release of toxic and hazardous gases produced from certain ingredients in the tobacco in the high temperature combustion without affecting the smoking taste as much as possible, and is of popularization significance for reducing the harm of smoking.

Description

technical field [0001] The invention relates to the field of tobacco, in particular to a medium-low temperature energy-containing heat source for heating tobacco and a preparation method thereof. Background technique [0002] The current medium and low temperature shredded tobacco heating technologies include electric heating, fuel heating, and physical and chemical heating. Due to the simple structure, low cost and relatively low technical difficulty of fuel heating technology, fuel heating technology is more practical; in fuel heating technology, carbonaceous heat sources are mostly used , but the low-temperature combustion of carbonaceous materials in the air is difficult to occur and produces a large amount of carbon monoxide, although there are many patents to reduce the combustion temperature and reduce carbon monoxide emissions, such as Japanese Patent Laid-Open No. 2-215373, which uses the addition of metal nitrides for combustion Generate metal oxides, and then prom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24F47/00
Inventor 郭耸齐秀生张琳周顺王孝峰何庆张晓宇赵安文黄宴峰余亮高尚
Owner NANJING UNIV OF SCI & TECH
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