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Method for preparing porous carbon heat source material

A porous carbon and heat source technology, applied in the application, tobacco, smoker's products and other directions, can solve the problems of material flammability and mechanical strength damage, reduce processing tolerance and thermal collapse resistance, reduce material mechanical strength and other problems, To achieve smooth heat flow transfer, avoid the reduction of mechanical strength, and improve the effect of mechanical strength

Active Publication Date: 2016-06-01
CHINA TOBACCO ANHUI IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing carbonaceous heat sources are often provided with multiple longitudinal channels (CN102458165A, US4881556, CN101420876A, CN89104936.3, CN1100453A, CN103263084A, etc.) to improve its ignition, combustion adequacy and heat transfer efficiency, but complex physical structures give Material processing brings difficulty and also reduces the mechanical strength of the material, which in turn reduces the processing tolerance and thermal collapse resistance
CN103233295A and CN103263077A propose a method of crosslinking carbonaceous heat source materials using calcium salts. The prepared materials have a loose structure and gaps, and hot air can pass through smoothly, and the crosslinked and solidified network structure can improve mechanical strength and heat resistance Collapsibility, but the size of the carbon powder used is too large, which will inevitably cause great damage to the combustibility and mechanical strength of the material
However, the preparation process of these two methods is loaded down with trivial details, and the energy consumption is high.

Method used

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  • Method for preparing porous carbon heat source material
  • Method for preparing porous carbon heat source material
  • Method for preparing porous carbon heat source material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The composition of each component of the porous carbonaceous heat source material in this embodiment is as follows:

[0026]

[0027] The above-mentioned raw materials and 60g water are initially mixed, and then sent into the screw extruder to continue mixing, while blowing agent CO 2 It is poured into an extruder, extruded after foaming, and then dried and cut to obtain a porous carbonaceous heat source material.

[0028] The screw process parameters are set as follows: the temperature is 25-35° C., and the screw speed is 100 rpm.

[0029] Blowing agent CO 2 The injection flow rate is 6mL / min.

Embodiment 2

[0031] The composition of each component of the porous carbonaceous heat source material in this embodiment is as follows:

[0032]

[0033] The above-mentioned raw materials and 100g water are initially mixed, and then sent into the screw extruder to continue mixing, while blowing agent CO 2 It is poured into an extruder, extruded after foaming, and then dried and cut to obtain a porous carbonaceous heat source material.

[0034] The screw process parameters are set as follows: the temperature is 25-35° C., and the screw speed is 150 rpm.

[0035] Blowing agent CO 2 The injection flow rate is 10mL / min.

Embodiment 3

[0037] The composition of each component of the porous carbonaceous heat source material in this embodiment is as follows:

[0038]

[0039] The above-mentioned raw materials and 130g water are initially mixed, and then sent into the screw extruder to continue mixing, while blowing agent CO 2 It is poured into an extruder, extruded after foaming, and then dried and cut to obtain a porous carbonaceous heat source material.

[0040] The screw process parameters are set as follows: the temperature is 25-35° C., and the screw speed is 180 rpm.

[0041] Blowing agent CO 2 The injection flow rate is 16mL / min.

[0042] The carbonaceous heat sources prepared in Example 1, Example 2, and Example 3 were evaluated for three indicators: ignitability, CO release, and combustion shrinkage rate. The results are shown in Table 1.

[0043] It can be seen from Table 1 that the ignition temperature, CO emission and shrinkage rate of the carbonaceous heat source prepared by the present inve...

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Abstract

The invention discloses a method for preparing a porous carbon heat source material. The method includes the steps that all components and water are primarily mixed through a mixing machine, and then are fed into a screw extruder to continue to be mixed; meanwhile, a foaming agent CO2 is injected into the screw extruder, extrusion molding is conducted after foaming, then drying and cutting are conducted, and the porous carbon heat source material is obtained. According to the method, due to the porous characteristic of a porous carbon heat source, the porous carbon heat source is easy to ignite, full in burning and smooth in thermal flow transferring, and the difficulty, caused by the complex-longitudinal-channel design, of processing molding and reduction, caused by the complex-longitudinal-channel design, of mechanical strength are avoided.

Description

1. Technical field [0001] The invention relates to a method for preparing a heat source material for cigarettes, in particular to a method for preparing a porous carbonaceous heat source material, which can be used for low-temperature cigarettes and belongs to the field of new tobacco products. 2. Background technology [0002] Low-temperature heating cigarettes generally convey satisfaction and tobacco aroma to consumers by heating non-burning tobacco. Their appearance and consumption methods are also similar to traditional cigarettes, which to a certain extent adapt to and satisfy consumers' physiological needs and psychological needs. This "heat not burn" method enables the tobacco to be heated only at a lower temperature (ideal temperature range 450-550°C), avoiding the generation of a large number of harmful compounds caused by the high temperature environment when the tobacco is burned, and because there is basically no side effects No second-hand smoke will be genera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24F47/00
CPCA24F47/004
Inventor 王孝峰周顺何庆张亚平徐迎波
Owner CHINA TOBACCO ANHUI IND CO LTD
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