Cigarette cracking device and cigarette thermal cracking analysis method using same

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...

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 heating, so the heating point is limited to the surface, and a temperature gradient is formed inside the sample

In short, the hot wire and laser crackers are unable to pyrolyze a large amount of samples due to their heating methods and structural limitations, while the Curie point cracker is very limited in scope due to the complex continuous temperature adjustment.

The existing tube furnace cracker can better meet the test requirements of large sample volume in terms of heating principle, but there is less research work on this kind of thermal cracker in the prior art, and there is a lack of better actual products

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