WO2019119731A1

WO2019119731A1 - Peripheral electric heating aerosol generating system containing tobacco particles

Info

Publication number: WO2019119731A1
Application number: PCT/CN2018/088800
Authority: WO
Inventors: 周顺; 何庆; 王成虎; 张劲; 王孝峰; 张晓宇; 张亚平
Original assignee: 安徽中烟工业有限责任公司
Priority date: 2017-12-22
Filing date: 2018-05-29
Publication date: 2019-06-27
Also published as: CN108143005A

Abstract

Disclosed is a peripheral electric heating aerosol generating system containing tobacco particles, comprising an electric heating tobacco stem and a cartridge inserted in the electric heating tobacco stem. The cartridge comprises a metal sleeve, a filter section and a heating section. The top of the metal sleeve is provided with an opening, and the bottom of the metal sleeve is sealed by means of a metal base. The filter section and the heating section are vertically arranged in a cavity inside the metal sleeve. The bottom of the heating section is supported by the metal base, and the heating section is formed by the tobacco particles. The electric heating tobacco stem comprises a tobacco stem body. The upper portion of the tobacco stem body is provided with a containing cavity. An electric heating assembly is provided in the containing cavity of the tobacco stem body. The electric heating assembly comprises an annular heating piece and a bottom heating piece. The cartridge is inserted in the containing cavity of the electric heating tobacco stem, and the side wall and bottom of the heating section of the cartridge are heated by means of the annular heating piece and the bottom heating piece. The present invention has the advantages that the tobacco particles are sealed in the cartridge, the electric heating tobacco stem is not polluted, and fire hazards cannot be caused after the cartridge is replaced and discarded.

Description

Peripheral electric heating aerosol generating system comprising tobacco particles

Technical field

The invention relates to the technical field of tobacco products, in particular to a peripheral electric heating aerosol generating system comprising tobacco particles.

Background technique

In recent years, with the promulgation and implementation of the Framework Convention on Tobacco Control, tobacco control measures of various governments have become stricter, and the regulatory legislation on tobacco has become stricter. The voices of tobacco control and anti-smoking have become stronger and stronger, and the competitive pressures in domestic and foreign markets continue. At the same time, with the continuous improvement of people's living standards, people pay more attention to their physical and mental health and environmental protection, and have a new understanding of tobacco.

For the above reasons, the development of traditional cigarettes is subject to more and more constraints. According to statistics from 2011, while cigarette production and sales have declined worldwide, other types of tobacco products have shown a rapid growth trend, and the world tobacco market product structure. Constantly undergoing profound changes, and actively developing a full range of tobacco products has gradually become the strategic orientation of various multinational tobacco companies. At present, three major new types of tobacco products have emerged on the market: heating non-combustible tobacco products, electronic cigarettes and smokeless tobacco products.

Among them, the heating non-burning tobacco product is a new type of tobacco product which relies on heating different forms of tobacco materials to produce smoke release effect. It was one of the important categories of new tobacco products since the 1980s. Generally, the tobacco flavor is transmitted to consumers through the method of “heating without burning”, and its appearance and consumption mode are similar to those of traditional cigarettes, and the physiological and psychological needs of consumers are adapted and satisfied to some extent. This "heating without burning" method allows the tobacco to be heated only at lower temperatures (generally below 500 ° C), avoiding the formation of tar and a large number of harmful compounds caused by high temperature combustion of the tobacco, and since there is substantially no sidestream smoke Gas, will not produce second-hand smoke, will not affect the public environment. In recent years, many tobacco manufacturing companies and research institutes have seen great potential for heating non-combustible tobacco products, and have invested heavily in this field, and have gained a lot. Among them, the electric heating non-combustion tobacco product has the advantages of controllable heating temperature, flexible heating mode, convenient use and fashion, and has higher attention, and is an important development direction of heating non-combustion tobacco products at home and abroad.

The technical core of heating non-combustion tobacco products mainly includes two aspects of heat source and smoke release material. The heat source types are divided into three types: electric heating, carbon heating, and chemical reaction heating. Among them, electric heating and carbon heating have been applied to products such as “iQOS” of Philip Morris and Revo of Reynolds Tobacco. The release material is a key factor affecting the smoking experience of heating non-combustible tobacco products. Currently, the smoke release materials mainly include tobacco, tobacco, tobacco sheets and the like. These materials can release flue gas with tobacco characteristic aroma under different heating environments, but there are common defects such as uneven heating, easy carbonization, and inconvenient operation. Among them, tobacco and tobacco are difficult to add atomizing agent, and there are problems such as small amount of smoke, uneven smoking, and easy coking; while the tobacco sheet used in "iQOS" solves the problem of smoke generation, the manufacturing process is complicated and the equipment cost is low. Expensive, not controllable, and there is a heavy burning paper smell in the flue gas, affecting the taste. At the same time, after the existing products are used, the smoke releasing material will remain on the electric heating component due to coking, carbonization, bonding and the like. Special tools are needed to clean the heating components, and this kind of product, like traditional cigarettes, has a safety fire hazard after use. Therefore, the development of a new type of electric heating aerosol generating system with simple operation, good atomization effect, no need for cleaning and environmental friendliness is very meaningful for the development of new tobacco products.

Summary of the invention

It is an object of the present invention to overcome the deficiencies of the prior art and to provide a peripheral electrically heated aerosol generating system comprising tobacco particles.

The invention is achieved by the following technical solutions:

A peripheral electric heating aerosol generating system comprising tobacco particles, comprising an electrically heated tobacco rod and a cartridge inserted into the electrically heated tobacco rod,

The cartridge includes a metal sleeve, a filter section and a heating section, and the top end of the metal sleeve is open and the bottom end is sealed by a metal base, and the filter section and the heating section are arranged in an up-and-down arrangement inside the metal sleeve. Inside the cavity, the bottom of the heating section is supported by a metal base, and the heating section is composed of tobacco particles, and the side wall of the metal sleeve has an inner vent hole at a position corresponding to the heating section;

The electric heating tobacco rod comprises a tobacco rod body, the upper portion of the tobacco rod body is provided with a receiving chamber with an open top end, and an electric heating assembly is arranged in the receiving chamber of the tobacco rod body, and the electric heating assembly comprises a distribution An annular heating piece of the inner side wall of the cavity, and a bottom heating piece distributed on the bottom wall of the accommodating cavity, and an outer vent hole is formed in the side wall of the accommodating cavity;

Inserting the cartridge into the receiving cavity of the electric heating rod from top to bottom, heating the side wall of the heating section of the cartridge through the annular heating sheet, and passing the bottom heating piece to the bottom of the heating section of the cartridge Heating;

The tobacco particles are composed of the following mass percentages of raw materials:

Tobacco ultrafine powder 40-60%, other biomass powder 0-10%, tobacco dry distillation 5-10%, atomizing agent 20-40%, binder 1-5%, the balance is tobacco flavors and fragrances.

Further, the filter segment of the cartridge is a paper filter rod.

Further, a battery for supplying power to the electric heating component is disposed inside the tobacco rod body, and the tobacco rod body is further provided with a charging interface for charging the battery.

Further, a switch is further disposed on the body of the tobacco rod.

Further, the accommodating cavity depth of the electrically heated tobacco rod is less than the axial length of the heating section of the cartridge.

Further, the inner vent has a pore diameter smaller than a particle diameter of the tobacco particles.

Further, the tobacco ultrafine powder is one or more selected from the group consisting of flue-cured tobacco, burley tobacco, oriental tobacco, expanded tobacco, and tobacco stem; and the particle size of the tobacco ultrafine powder is ≤250 μm.

Further, the other biomass powder is selected from one or more of tangerine peel, sandalwood, ebony, sarcophagus, sweet potato, chestnut, and malt; and the other biomass powder has a particle diameter of ≤250 μm.

Further, the mass of the other biomass powder accounts for ≤20% of the mass of the tobacco ultrafine powder; the quality of the tobacco dry distillation accounts for 5-20% of the mass of the tobacco ultrafine powder.

Further, the atomizing agent is selected from one or more of 1,2-propanediol, 1,3-butanediol, and glycerin; the binder is selected from the group consisting of starch, xanthan gum, and carrageenan. One or more of gelatin, guar gum, and maltodextrin.

The preparation method of the tobacco dry distillation used in the invention is prepared by referring to the patent CN204579897U "a submicron smoke particle preparation device capable of improving the sensory quality of the electronic cigarette", and the specific preparation method is as follows:

In an oxygen-free atmosphere, at least one of flue-cured tobacco, burley tobacco, and oriental tobacco is used as a tobacco raw material, and is subjected to dry distillation at 200 to 400 ° C. The distillate is collected by condensation, and concentrated under reduced pressure at 60 ° C to anhydrous steam. Distilled, the resulting residual product is the tobacco dry distillation.

The method for preparing tobacco particles of the present invention comprises the following steps:

Step 1: mixing the tobacco ultrafine powder and other biomass powders as a main ingredient, and mixing the tobacco dry matter, the atomizing agent, the binder and the tobacco flavor and fragrance according to the compounding amount as an auxiliary material; The main material and the auxiliary material are wet-mixed (the atomizing agent may be used, and no other mixed medium is added) to obtain a premix;

Step 2: The premix obtained in the step 1 is subjected to baking alcoholization to obtain an alcoholate;

Step 3: extruding the alcoholate obtained in step 2 through an extruder to obtain an extrudate;

Step 4: The extrudate obtained in the step 3 is subjected to spheronization granulation, and the water is removed by drying to obtain tobacco granules.

Wherein, in step 1, the mixing process is carried out by a high speed mixer, and the mixing conditions are: mixing time ≥ 15 min; mixing speed ≥ 500 rpm.

In the step 2, the conditions of the roasting alcoholization treatment are as follows: the atmosphere is continuously aerated with nitrogen; the temperature is 100-200 ° C; and the time is 2-4 h. For the aromatization treatment, the premix is placed in a heatable, ventilated stainless steel tank for baking and alcoholization. The process of step 2 can make the components in the premix more uniformly mixed on the one hand, and the Maillard reaction in the process of heating the alcoholization on the other hand can make the aroma of the product tobacco particle material more abundant, and remove the bad odor such as cyan gas; In addition, this step also removes some of the moisture from the premix, facilitating extrusion and the sensory experience of the product.

In the step 3, the extrusion molding conditions are: extrusion temperature ≤ 40 ° C; pore diameter of 0.5 - 0.8 mm; extrusion rate of 5 - 10 kg / h. The pore diameter is preferably 0.7 mm. The extruder employs a screen extruder or a variable density extruder (i.e., a screw extruder), preferably a variable density extruder.

In step 4, the spheronization granulation adopts a high-speed spheronizer, and the spheronization speed is ≥1000 rpm. The drying adopts a temperature-controlled oven, preferably a tunnel type quick dryer, the drying temperature is 60-80 ° C, the drying time is ≤ 1 h; preferably, the drying to the water content is ≤ 5 wt%.

The tobacco particles prepared by the present invention are uniform spherical particles having a particle diameter of 0.5 to 0.8 mm.

The tobacco granule of the invention has uniform granules and pleasant scent, and can adjust the amount of the atomizing agent to be added according to the demand, and the amount of smoke fumes released is large, and the consumer can satisfy the satisfaction of smoking in the state of heating and non-combustion. The combination of tobacco dry distillation and tobacco powder can significantly improve the sensory quality of the flue gas, so that the flue gas has excellent uniformity, aroma, concentration and strength; and the selective addition of other biomass powder can impart a unique aroma to the flue gas. Taste.

Table 1 Sensory evaluation form of tobacco granules (evaluation using matching electric heating smoking ware)

颗粒配方组成Particle formulation	香气aroma	浓度concentration	劲头Energize	综合评价Overview
烟末+干馏香料Smoke + dry distillation spice	A+A+	A++A++	A+A+	A+A+
烟末Smoke	A-A-	A-A-	AA	A-A-

The present invention has the following advantages over the prior art:

The present invention provides a peripheral electrically heated aerosol generating system comprising tobacco particles which, by heating the tobacco particles, produces an effect similar to conventional cigarettes. The shell of the cartridge is surrounded by a metal sleeve and a metal base to form a bottom closed space, and the tobacco particles of the heating section are sealed and filled in the space, and the cartridge is matched with the electric heating rod, and the cartridge is directly used after being used. The electric heating rod is taken out, and the smoke releasing material of the cartridge does not remain in the electric heating rod, and does not pollute the electric heating rod. Therefore, the electric heating rod is not required to be cleaned, the use is very convenient, and the cartridge is replaced. There is no fire hazard after abandonment.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the entire structure of the present invention.

2 is a schematic structural view of a cartridge of the present invention.

Figure 3 is a schematic view showing the structure of an electrically heated tobacco rod of the present invention.

Figure 4 is a comparison of the flue gas release rates of the tobacco particulate material prepared in Example 1 with other smoke releasing materials such as tobacco flakes and soot in a heat-non-combustible state (350 ° C).

Figure 5 is a comparison of the amount of smoke released from the tobacco particulate material prepared in Example 1 and other smoke releasing materials such as tobacco flakes and soot in a non-combustible state (350 ° C).

It can be seen from Figures 4 and 5 that the tobacco particulate material has obvious advantages over the flue gas release rate and the flue gas release amount of the tobacco flakes and the smoke. Under the same conditions, the tobacco particulate material is heated and not combusted. The smoke is released faster and the smoke is released more.

Figure 6 is a comparison of the flue gas release rates of the tobacco particulate material prepared in Example 2 with other smoke releasing materials such as tobacco flakes and soot in a heat-non-combustible state (350 ° C).

Figure 7 is a comparison of the amount of smoke released from the tobacco particulate material prepared in Example 2 with other smoke releasing materials such as tobacco flakes and soot in a non-combustible state (350 ° C).

It can be seen from Figures 6 and 7 that the tobacco particulate material has obvious advantages over the flue gas release rate and the flue gas release amount of the tobacco flakes and the smoke. Under the same conditions, the tobacco particulate material is heated and not combusted. The smoke is released faster and the smoke is released more.

In the figure: 1 electric heating rod, 11 rod body, 12 housing cavity, 13 ring heating piece, 14 bottom heating piece, 15 outer vent, 16 charging interface, 17 switch, 2 cartridge, 21 metal sleeve, 22 filter section, 23 heating section, 24 metal base, 25 inner vent.

Detailed ways

The embodiments of the present invention are described in detail below. The present embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation manners and specific operation procedures are given, but the scope of protection of the present invention is not limited to the following implementation. example.

Referring to FIG. 1 to FIG. 3, the embodiment discloses a peripheral electric heating aerosol generating system including tobacco particles, comprising an electric heating tobacco rod 1 and a cartridge 2 inserted into the electric heating tobacco rod 1.

The cartridge 2 includes a metal sleeve 21, a filter section 22 and a heating section 23. The top end of the metal sleeve 21 is open and the bottom end is sealed by a metal base 24, and the filter section 22 and the heating section 23 are arranged one above the other in the metal sleeve 21. In the inner cavity, the bottom of the heating section 23 is supported by the metal base 24, and the heating section 23 is composed of tobacco particles. The side wall of the metal sleeve 21 is provided with an inner vent hole 25 at the position corresponding to the heating section 23, and the inner vent hole 25 is provided. The pore size is smaller than the particle size of the tobacco particles to avoid leakage of the tobacco particles.

The electrically heated tobacco rod 1 comprises a tobacco rod body 11 having an upper portion of the upper portion of the tobacco rod body 11 with an open top end, the receiving chamber 12 having a depth smaller than the axial length of the heating portion 23 of the cartridge 2. An electric heating assembly is disposed in the accommodating chamber 12 of the tobacco rod body 11. The electric heating assembly includes an annular heating piece 13 distributed on the inner side wall of the accommodating chamber 12, and a bottom heating piece 14 distributed on the bottom wall of the accommodating chamber 12, accommodating the chamber 12. An outer venting opening 15 is defined in the side wall of the cavity; a battery for supplying power to the electric heating component is disposed inside the tobacco rod body 11, and the charging rod 16 is further provided with a charging interface 16 for charging the battery; A switch 17 is also provided on the 11 for opening and closing the electric heating assembly.

The cartridge 2 is inserted into the accommodating chamber 12 of the electric heating rod 1 from the top to the bottom, and the side wall of the heating section 23 of the cartridge 2 is heated by the annular heating piece 13, and the heating section 23 of the cartridge 2 is passed through the bottom heating sheet 14. Heat the bottom.

The material of the filter section 22 of the cartridge 2 can be selected from the group consisting of cellulose acetate filter rod, paper filter rod, activated carbon, aluminum foil, polylactic acid non-woven fabric, polylactic acid film, modified polylactic acid non-woven fabric and modified polylactic acid film. The species in it. The material of the metal sleeve 21 and the metal base 24 may be at least one selected from the group consisting of copper, aluminum, aluminum alloy, iron, and stainless steel.

In use, the cartridge 2 is inserted into the accommodating chamber 12 of the electric heating rod 1 from top to bottom, and the side wall of the heating section 23 of the cartridge 2 is heated by the annular heating sheet 13 through the bottom heating sheet 14 to the cartridge 2 The bottom of the heating section 23 is heated to cause the tobacco particles to generate smoke for suction. In this embodiment, the periphery and the bottom of the heating section 23 are simultaneously heated, and the heating is more uniform.

This embodiment produces an effect similar to a conventional cigarette by heating the tobacco particulate material to generate smoke. The tobacco granule material is sealed in the cartridge 2, and the used electric heating rod 1 is not left and polluted after use, and the electric heating rod 1 is not required to be cleaned, and the rod 2 is replaced and discarded without causing fire hazard.

Among them, the tobacco particles are composed of the following mass percentages of raw materials:

Example 1:

The preparation method of the tobacco granules in this embodiment is as follows:

Step 1: Take flue-cured tobacco powder, sieve with 250μm sieve, weigh 600g as main ingredient; weigh 50g of flue-cured tobacco dry distillation, 240g of glycerol, 60g of propylene glycol, 20g of guar gum, 10g of gelatin, maltodextrin 10 g, tobacco flavors and fragrances (mint) 10 g in a stirred tank, stirred at 1000 rpm for 15 min as an auxiliary material; the main ingredient was added to the auxiliary material under stirring, and stirring was continued at 1000 rpm for 1 h at room temperature to obtain a premix.

Step 2: Pour the premix into a heated, ventilated stainless steel reaction tank, continuously pass nitrogen gas from the upper vent hole of the tank, and keep the pores open; the alcoholization temperature is 120 ° C, and the alcoholization time is 2 h. Alcohol.

Step 3: After the alcoholate was cooled to room temperature, it was sent to a screw extruder for extrusion molding at an extrusion rate of 5 kg/h and a pore diameter of 0.7 mm to obtain an extrudate.

Step 4: The extrudate obtained in step 3 is sent to a high-speed rounding machine for spheronization and granulation at a speed of 2000 rpm to obtain a wet granular material having a particle diameter of 0.7 mm, placed in a temperature-controlled oven, and dried at 80 ° C to a water content in the granules. The rate was 5 wt%, which gave the desired tobacco particles.

The flue gas release rate (Fig. 4) and the flue gas release rate (Fig. 5) of the tobacco particulate material and other smoke releasing materials such as tobacco sheets and cigarettes in a non-combustible state (Fig. 4) were compared by a cone calorimeter (Fig. 5). It can be seen from the figure that the tobacco particulate material has obvious advantages over the flue gas release rate and the flue gas release amount of the tobacco flakes and the smoke. Under the same conditions, the tobacco particulate material is smoked under heating and non-combustion conditions. The gas is released faster and the amount of smoke released is greater.

The tobacco granules of the present embodiment have a fast release rate of flue gas and a sufficient release amount in the state of heating and non-combustion, and have a distinctive flue-cured style characteristic, accompanied by a lightness of the mint, a strong sense of flue gas, and good comfort.

Example 2:

Step 1: Weigh 350g of flue-cured tobacco powder sieved through a 250μm sieve, 150g of burley tobacco powder, 50g of dried tangerine peel powder, 50g of ebony powder in a stirred tank, stir at a speed of 500rpm for 20min, as the main material; weigh the flue-cured tobacco separately 70 g of dry distillation, 10 g of burley tobacco dry distillation, 250 g of glycerin, 20 g of xanthan gum, 10 g of gelatin, 40 g of flavors and flavors of tobacco (fruity flavor, cocoa), and stirred in a stirred tank at 1000 rpm for 15 min. Excipients; adding the main ingredient to the auxiliary material under stirring, stirring at 1000 rpm for 1 h at room temperature to obtain a premix.

Step 2: Pour the premix into a heatable and ventilated stainless steel reaction tank, continuously pass nitrogen gas from the upper vent hole of the tank, and keep the pores open; the alcoholization temperature is 100 ° C, and the alcoholization time is 4 h. Alcohol.

Step 3: After the alcoholate was cooled to room temperature, it was sent to a screw extruder for extrusion molding at an extrusion rate of 6 kg/h and a pore diameter of 0.8 mm to obtain an extrudate.

Step 4: The extrudate obtained in step 3 is sent to a high-speed rounding machine for spheronization granulation at a rotational speed of 1500 rpm to obtain a wet granular material having a particle diameter of 0.8 mm, placed in a temperature-controlled oven, and dried at 80 ° C to a water content in the granules. The rate was 3 wt%, which gave the desired tobacco particles.

The flue gas release rate (Fig. 6) and the flue gas release rate (Fig. 6) of the tobacco particulate material and other smoke releasing materials such as tobacco sheets and cigarettes in a non-combustion state (Fig. 6) were compared by a cone calorimeter (Fig. 7). It can be seen from the figure that the tobacco particulate material has obvious advantages over the flue gas release rate and the flue gas release amount of the tobacco flakes and the smoke. Under the same conditions, the tobacco particulate material is smoked under heating and non-combustion conditions. The gas is released faster and the amount of smoke released is greater.

The tobacco granule material of the present embodiment has a fast release rate of flue gas and a sufficient amount of release in the state of heating and non-combustion, and has remarkable mixed tobacco style characteristics, and combines the aroma of dried tangerine peel and ebony, and the smoke has a strong sense of satisfaction and good comfort. .

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalents, and improvements made within the spirit and scope of the present invention should be included in the scope of the present invention. Inside.

Claims

A peripheral electric heating aerosol generating system comprising tobacco particles, comprising: an electrically heated tobacco rod and a cartridge inserted into the electrically heated tobacco rod,

The cartridge includes a metal sleeve, a filter section and a heating section, and the top end of the metal sleeve is open and the bottom end is sealed by a metal base, and the filter section and the heating section are arranged in an up-and-down arrangement inside the metal sleeve. Inside the cavity, the bottom of the heating section is supported by a metal base, and the heating section is composed of tobacco particles, and the side wall of the metal sleeve has an inner vent hole at a position corresponding to the heating section;

The electric heating tobacco rod comprises a tobacco rod body, the upper portion of the tobacco rod body is provided with a receiving chamber with an open top end, and an electric heating assembly is arranged in the receiving chamber of the tobacco rod body, and the electric heating assembly comprises a distribution An annular heating piece of the inner side wall of the cavity, and a bottom heating piece distributed on the bottom wall of the accommodating cavity, and an outer vent hole is formed in the side wall of the accommodating cavity;

Inserting the cartridge into the receiving cavity of the electric heating rod from top to bottom, heating the side wall of the heating section of the cartridge through the annular heating sheet, and passing the bottom heating piece to the bottom of the heating section of the cartridge Heating;

The tobacco particles are composed of the following mass percentages of raw materials:

Tobacco ultrafine powder 40-60%, other biomass powder 0-10%, tobacco dry distillation 5-10%, atomizing agent 20-40%, binder 1-5%, the balance is tobacco flavors and fragrances.
A peripheral electrically heated aerosol generating system comprising tobacco particles according to claim 1 wherein the filter section of the cartridge is a paper filter plug.
A peripheral electric heating aerosol generating system comprising tobacco particles according to claim 1, wherein the tobacco rod body is internally provided with a battery for supplying power to the electric heating assembly, and the tobacco rod body is further A charging interface for charging the battery is provided.
A peripheral electric heating aerosol generating system comprising tobacco particles according to claim 3, wherein the tobacco rod body is further provided with a switch.
A peripheral electrically heated aerosol generating system comprising tobacco particles according to claim 1 wherein said electrically heated tobacco rod has a receiving chamber depth that is less than an axial length of said heated section of said cartridge.
A peripheral electrically heated aerosol generating system comprising tobacco particles according to claim 1 wherein said inner vent has a pore size smaller than a particle size of said tobacco particles.
A peripheral electric heating aerosol generating system comprising tobacco particles according to claim 1, wherein said tobacco ultrafine powder is selected from the group consisting of flue-cured tobacco, burley tobacco, oriental tobacco, expanded tobacco, and tobacco stem. One or more; the tobacco ultrafine powder has a particle size of ≤250 μm.
A peripheral electric heating aerosol generating system comprising tobacco particles according to claim 1, wherein said other biomass powder is selected from the group consisting of dried tangerine peel, sandalwood, ebony, sarcophagus, sweet potato, chestnut, and malt. One or more; the other biomass powder has a particle size of ≤250 μm.
A peripheral electric heating aerosol generating system comprising tobacco particles according to claim 1, wherein: said other biomass powder has a mass ratio of tobacco ultrafine powder of ≤ 20%; said tobacco dry distillation The quality accounts for 5-20% of the quality of the ultrafine powder of tobacco.
A peripheral electric heating aerosol generating system comprising tobacco particles according to claim 1 wherein:

The atomizing agent is selected from one or more of 1,2-propanediol, 1,3-butanediol, and glycerin;

The binder is selected from one or more of starch, xanthan gum, carrageenan, gelatin, guar gum, and maltodextrin.