Cigarette cracking device and cigarette thermal cracking analysis method using same

A technology of cracking device and analysis method, applied in the field of cigarette testing equipment, can solve the problems of complex and small continuous adjustment of Curie point cracker temperature, generally tens of micrograms to several milligrams, and inability to thermally crack large samples, etc. The effect of avoiding the occurrence of temperature gradients inside the sample, fast heating, easy control and measurement

Active Publication Date: 2019-07-23
CHINA TOBACCO HENAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the hot wire cracker attaches the sample to be tested to a heating wire or in a quartz glass tube. This heating method also determines that the sample to be tested is too small, generally tens of micrograms to several milligrams; The cracker adjusts the cracking temperature through ferromagnetic alloys of different compositions. Due to the different Curie point temperatures of ferromagnetic materials, the temperature adjustment is complicated and cannot be continuously adjusted, so the scope of use is relatively limited; when the laser cracker cracks the sample Mainly achieved by point heatin

Method used

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  • Cigarette cracking device and cigarette thermal cracking analysis method using same
  • Cigarette cracking device and cigarette thermal cracking analysis method using same
  • Cigarette cracking device and cigarette thermal cracking analysis method using same

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Such as Figure 1~Figure 3 As shown, the cigarette cracking device provided by the present application includes two parts, a furnace body and a control system;

[0040] Described body of furnace adopts vertical structure, comprises a cracking chamber 7 that is used to hold sample, and the outside of cracking chamber 7 is provided with electric furnace heating wire 5, and the upper end of cracking chamber 7 is connected with carrier gas inlet 2 simultaneously, and the end of cracking chamber is connected with There is a carrier gas outlet 9;

[0041] The heating wire 5 of the electric furnace is connected with a thermocouple 6, and the thermocouple 6 controls parameters such as heating time and heating temperature by a control system.

[0042] The cracking chamber 7 is used to hold the sample to be heated and cracked, and is specifically a quartz tube; the diameter of the quartz tube is matched with a sample holding cage 8, so that the sample to be heated and cracked ca...

Embodiment 2

[0055] With similar parameters of the three auxiliary materials, one cigarette sample of China Tobacco Henan Co., Ltd. with different specifications of high, medium and low tar (cigarette sample brands are: high tar soft big golden round, medium tar century-old Luzhou, low tar golden leaf Xuanshang , and numbered 1, 2, 3 respectively). According to the smoking parameters, draw out the burnt tobacco part, and then select 2 / 5 of the total burnt tobacco for pyrolysis analysis according to the distribution of mainstream smoke and sidestream smoke.

[0056] During pyrolysis analysis, the shredded tobacco sample is placed in a stainless steel mesh cage, the filter is placed in the holder, and connected to the gas outlet of the instrument.

[0057] Turn on the power of the instrument and set the cracking parameters:

[0058] The cracking gas compressed air flow rate is 20mL / min, the cracking gas flow rate is 46mL, the cracking temperature is 900°C, the heating rate is 100°C / ms, and ...

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Abstract

The invention belongs to the technical field of cigarette detection equipment, and particularly relates to a cigarette cracking device. The device comprises a furnace body and a control system, wherein the furnace body adopts a vertical structure and comprises a cracking chamber used for containing samples; an electric furnace heating wire is arranged outside the cracking chamber; the upper end ofthe cracking chamber is connected with a carrier gas inlet; the tail end of the cracking chamber is connected with a carrier gas outlet; the electric furnace heating wire is connected with a thermocouple; the heating time and temperature of the thermocouple is controlled by a control system; the cracking chamber is used for containing a sample to be heated for cracking; the cracking chamber is provided with a quartz tube; a sample containing cage is matched with the diameter of the quartz tube; the middle part of the quartz tube is narrow and is used for clamping the sample containing cage; and the upper end of the furnace body is provided with a cracking knob used for controlling the opening and closing of the cracking chamber. The device is applicable to various types of samples, and has large capacity of samples; and meanwhile, the device has the advantages that the heating is rapid, the cracking reaction process can be quickly completed in a short time, and the temperature gradient in the sample can be obviously reduced.

Description

technical field [0001] The invention belongs to the technical field of cigarette testing equipment, and in particular relates to a cigarette cracking device and a cigarette pyrolysis analysis method using the device. Background technique [0002] Cigarette is a kind of special consumer product, and its smoking quality is realized by burning. Cigarette combustion is a complex physical and chemical process, and the difference in cigarette quality is mainly due to the difference in various substances produced by combustion and cracking. Therefore, in order to study the quality of cigarette products, the majority of tobacco workers need to study the thermal cracking behavior under simulated cigarette combustion conditions, so as to find the relationship between the chemical components of tobacco leaves and smoke components, and then explore the aroma substances, The formation mechanism of harmful components provides a theoretical basis for related research on cigarette flavor e...

Claims

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Application Information

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IPC IPC(8): F27B17/02G01N30/02G01N30/06
CPCF27B17/02G01N30/02G01N30/06
Inventor 邱建华宋金勇李怀奇邱道夫郝辉陈晓刘金晓王宁骆震
Owner CHINA TOBACCO HENAN IND
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