阅读说明：本技术 一种碳棒加热不燃烧烟草制品 (Carbon rod heating non-combustion tobacco product ) 是由 罗诚浩 陈义坤 黄龙 刘豪 王泽安 于 2021-10-25 设计创作，主要内容包括：本发明公开一种碳棒加热不燃烧烟草制品,包括依次连接的燃料段、燃烧烟气净化段、吸食烟气发生段,所述燃料段设有同轴的第一碳棒与第二碳棒,所述燃烧烟气净化段内填充有过滤剂,所述吸食烟气发生段内填充有烟草原料,所述第一碳棒的着火点为150-350℃,所述第一碳棒的燃尽温度小于等于600℃,所述第二碳棒的着火点为300-600℃,所述第二碳棒的燃尽温度小于等于850℃,持久耐烧、避免不完全燃烧。(The invention discloses a carbon rod heating non-combustible tobacco product which comprises a fuel section, a combustion smoke purification section and a smoking smoke generation section which are sequentially connected, wherein the fuel section is provided with a first carbon rod and a second carbon rod which are coaxial, a filtering agent is filled in the combustion smoke purification section, a tobacco raw material is filled in the smoking smoke generation section, the ignition point of the first carbon rod is 150-350 ℃, the burning-out temperature of the first carbon rod is less than or equal to 600 ℃, the ignition point of the second carbon rod is 300-600 ℃, the burning-out temperature of the second carbon rod is less than or equal to 850 ℃, and the carbon rod heating non-combustible tobacco product is durable and avoids incomplete combustion.)

1. A carbon rod heating non-combustible tobacco product is characterized by comprising a fuel section (1), a combustion smoke purification section (2) and a smoking smoke generation section (3) which are sequentially connected, wherein the fuel section (1) is provided with a first carbon rod (4) and a second carbon rod (5) which are coaxial, a filtering agent is filled in the combustion smoke purification section (2), a tobacco raw material is filled in the smoking smoke generation section (3), the ignition point of the first carbon rod (4) is 150-.

2. A carbon rod-heated non-combustible tobacco product according to claim 1, characterized in that the second carbon rod (5) is housed inside the first carbon rod (4), the inner surface of the first carbon rod (4) is in abutment with the outer surface of the second carbon rod (5), the outer surface of the first carbon rod (4) is provided with grooves (41) for increasing the surface area of the first carbon rod (4), at least one of said grooves (41) being provided.

3. A carbon rod-heated non-combustible tobacco product according to claim 1, characterized in that the first carbon rod (4) is accommodated inside the second carbon rod (5), the outer surface of the first carbon rod (4) is partially attached to the inner surface of the second carbon rod (5), the outer surface of the first carbon rod (4) and the inner surface of the second carbon rod (5) are provided with at least one gap (6) for the air flow to flow through, and the gap (6) is provided with at least one gap.

4. A carbon rod-heated non-combustible smoking article according to claim 2 or 3, wherein the filtering agent is a porous material loaded with a metal oxide.

5. A carbon rod-heated non-combustible smoking article according to claim 4, wherein the metal oxides comprise CuO, Fe₂O₃、MnO₂、CeO₂One or more of them.

6. A carbon rod heated non-combustible smoking article according to claim 4, wherein the porous material comprises one or more of molecular sieves, zeolites, granular activated carbon, powdered alumina, powdered titanium oxide.

7. A carbon rod-heated non-combustible tobacco product according to claim 1, wherein the tobacco material comprises one or more of tobacco powder, tobacco sheet, atomised sheet.

8. A carbon rod-heated non-combustible smoking article according to claim 1, characterised in that the length of the first carbon rod (4) is 1-2mm longer than the length of the second carbon rod (5).

9. A carbon rod-heated non-combustible tobacco product according to claim 1, characterized in that the first carbon rod (4) comprises one or more of fruit charcoal, chrysanthemum charcoal, cotton stalk charcoal and tobacco charcoal, and the carbon element content of the first carbon rod (4) is not less than 60%.

10. A carbon rod-heated non-combustible tobacco product according to claim 1, wherein the second carbon rod (5) comprises one or more of graphite powder, carbon fiber, coke, bamboo charcoal, activated carbon, black and white carbon, and binchotan, and the carbon element content of the second carbon rod (5) is not less than 80%.

Technical Field

The invention relates to the field of heating non-combustible novel tobacco products, in particular to a carbon rod heating non-combustible tobacco product.

Technical Field

The new tobacco products gradually replace the traditional tobacco products such as cigarettes and the like due to the harm reduction characteristic of the new tobacco products become research and development hotspots. The novel tobacco products are mainly different from cigarette tobacco products adopting the traditional burning and smoking mode, and can be divided into two types of no smoke and smoke according to the using mode. Among them, smokeless products are represented by a heated non-combustible tobacco product and an electronic cigarette. The tobacco products mainly comprise buccal tobacco, chewing tobacco and buccal tobacco. At present, two types of products without smoke gas are in the market.

When the traditional cigarette is smoked, tobacco is in a high-temperature combustion state, and tar, benzopyrene, micromolecule gas pollutants and the like are easily generated. A heating non-combustion tobacco product (also called low-temperature cigarette) is a novel tobacco product which heats tobacco shreds by a special heating source, and nicotine and flavor substances in the tobacco shreds are volatilized to generate smoke to meet the requirements of smokers during heating. Different from the traditional cigarette, the tobacco shred of the non-combustion tobacco product is heated in the smoking intermittent heating mode and is in a non-combustion state, the heating temperature is not more than 350 ℃ at most, and therefore harmful ingredients generated by high-temperature combustion cracking of tobacco are reduced as far as possible.

The heating non-combustion type tobacco products are classified into "electric heating type tobacco products", "fuel heating type tobacco products" and "physical and chemical reaction heating type tobacco products" according to the difference of heating source. Among the three types of tobacco products that do not burn by heating, the electrical heating smoking system has the most extensive product development and technical research, and mainly comprises a smoking set, a cartridge and a charger. When in use, the cigarette cartridge is inserted into the smoking set, and the smoking set heats the cigarette cartridge, so that the tobacco in the cigarette cartridge is heated without burning. The tobacco cartridge mainly comprises a tobacco raw material section, an empty pipe section, a cooling section and a filter tip section, wherein the tobacco section mainly comprises tobacco sheets.

Carbon is a combustible material with a long use history and a wide source in the world, and compared with electric heating non-combustible tobacco, a heating non-combustible tobacco product prepared by taking carbon as a heat source is closer to a traditional cigarette product in appearance and is easily accepted by consumers of traditional cigarettes. In recent years, more research and development work on carbon-heated non-combustible tobacco products is carried out in China, but unfortunately, no carbon-heated non-combustible tobacco product is widely sold in the market at present. The main reasons were analyzed as follows: 1) the carbon rod is not easy to ignite and has poor experience effect. Although the carbon heating non-combustible cigarette has a shape similar to that of a traditional cigarette, because the ignition temperature of a carbon rod is far higher than that of tobacco, the carbon rod is difficult to ignite by adopting a match or a lighter, a common solution is to add substances such as a catalyst, a combustion improver and the like into a formula of the carbon rod, for example, the invention patent CN 103619198B is named as a combustible heat source for a smoking product and comprises carbon and at least one ignition aid, and the ignition aid is selected from metal nitrates, chlorates, peroxides, aluminothermic materials, intermetallic materials, magnesium, zirconium and the like; for example, the invention patent application No. 201810918505.4 discloses a modified carbon material, a preparation method and application thereof, CuO is used as a modifier to modify a carbonaceous material, in addition, a special igniter can be used to quickly ignite a carbon rod, for example, the invention patent application No. 201610985613.4 discloses an igniter capable of igniting carbon to heat a non-burning cigarette, which adopts a laser and a condenser lens to form a high-temperature quick ignition carbon rod; 2) the smoke generated during the combustion of the carbon rod contains harmful gas CO which may cause harm to human health. In order to reduce the amount of CO generated during the combustion of the carbon rod and further avoid the CO from entering the lung of the human body, it is a common practice to add catalysts during the preparation of the carbon rod, which are usually used during the combustion of solid fuels such as coal, carbon, graphite, etc. to improve the combustion efficiency, such as oxides, carbonates, nitrates, chlorides of alkali metals and alkaline earth metals, or oxides and salts of transition metals; in addition to improvement on the formula of carbon rod raw materials, the cigarette structure can be improved to reduce the suction amount of CO, for example, in patent 201610466840.6, the name of the invention is a gas path separated fuel heating type tobacco product, a fuel section is respectively provided with a central hole and peripheral axial through holes, wherein the inner surface of the central axial through hole is coated with an airtight coating and is connected with a gas-isolating and heat-conducting baffle, and other peripheral axial through holes are connected with radial through holes; the required air of carbon-point burning and the flue gas that produces are got into by peripheral axial through hole, flow from radial through hole, and it is the material that air and fuming material volatilize in can guaranteeing to get into the mouth of aspirator to this kind of design, furthest has avoided CO to the harm of human body in the flue gas. However, in the design, because the peripheral axial through holes of the carbon rod belong to natural convection, the diffusion speed of oxygen is low, the suction force of smokers is lacked, the actual combustion stability of the carbon rod is possibly deteriorated, and in addition, along with the combustion of the carbon rod, the central air-tight coating can fall off, oxidize and burn, and at the moment, the carbon rod can not isolate smoke gas and even can generate more toxic and harmful substances; 3) the carbon rod is not resistant to burning and cannot meet the requirements of continuous deep smokers. The carbon rod has limited length, and adopts inflammable carbon or mixes too much substances such as oxidant, catalyst, combustion improver and the like into carbon powder, so that the carbon rod easily catches fire quickly, the combustion time is short, and the suction time requirement of a suction person cannot be met, on the contrary, the carbon rod which has low volatile content and relatively compact graphitization and even pure carbon such as graphite powder, carbon fiber, coke and the like which are used as the raw materials of the carbon rod has the characteristic of burning resistance, but is not easy to ignite. In view of the characteristics of difficult compatibility of ignition and burning resistance, the invention patent application No. 201911263915.0, the name of the inflammable burning-resistant carbon heat source and the preparation method and the application thereof provide a method for preparing a carbon rod by adopting a carbon source blending method, mix inflammable carbon and difficult burning carbon, simultaneously exert the characteristics of easy ignition of the inflammable carbon and strong burning resistance of the difficult burning carbon to sustain fire, and ensure the double advantages of the inflammable burning resistance of the carbon rod. Although the method for blending the carbon source gives consideration to the characteristics of ignition and burning resistance, the situations of rapid combustion oxygen consumption of combustible carbon particles and insufficient oxygen supply during combustion of the flame-retardant carbon particles in the carbon rod can occur in the actual combustion process, and due to the fact that the combustible carbon particles compete with the flame-retardant carbon particles during combustion to rush air, oxygen in the air and the phenomenon exist, the phenomenon of incomplete combustion can occur in combustion smoke, and further CO is generated.

Disclosure of Invention

In order to solve the problems, the invention provides a carbon rod heating non-combustion tobacco product which is durable and burning-resistant and avoids incomplete combustion.

The technical scheme of the invention is that a carbon rod heating non-combustible tobacco product comprises a fuel section, a combustion smoke purification section and a smoking smoke generation section which are sequentially connected, wherein the fuel section is provided with a first carbon rod and a second carbon rod which are coaxial, a filter is filled in the combustion smoke purification section, a tobacco raw material is filled in the smoking smoke generation section, the ignition point and the burning resistance of the first carbon rod and the second carbon rod are obviously different, the ignition point of the first carbon rod is 150-, the formed carbonaceous heat source can be directly ignited to generate high-temperature smoke and simultaneously preheat air flowing through the surfaces of the first carbon rod and the second carbon rod, the inflammable carbon rod can be rapidly ignited in the heat source, the inflammable carbon rod can be durable in burning, and the carbon rod has the dual advantages of inflammability and burning resistance, the fuel section, the combustion smoke purification section and the smoking smoke generation section are sequentially connected in series, smoke from the fuel section, hot air and mixed gas of the hot air and the hot air pass through the smoke purification section and then reach the smoking smoke generation section, and the heat carried by incoming flow gas is utilized to enable tobacco raw materials placed in the smoking smoke generation section to undergo physicochemical processes of evaporation, volatilization, pyrolysis and the like, so that smoke capable of being smoked is formed.

Preferably, the second carbon rod is accommodated in the first carbon rod, the inner surface of the first carbon rod is attached to the outer surface of the second carbon rod, the outer surface of the first carbon rod is provided with at least one groove for increasing the surface area of the first carbon rod, namely, the inner layer is a flame-retardant carbon rod, the outer layer is a combustible carbon rod, the inner layer and the outer layer are attached to each other by fixing the relative positions through friction force of contact surfaces, so that the combustible carbon rod wraps the flame-retardant carbon rod, the groove has any shape, and the any shape includes but is not limited to a cylinder, a square, a triangle, a wave, a spiral and an irregular shape, so that the contact area between air and the outer surface of the combustible carbon rod is increased.

Preferably, the first carbon rod is accommodated in the second carbon rod, the outer surface of the first carbon rod is partially attached to the inner surface of the second carbon rod, the outer surface of the first carbon rod and the inner surface of the second carbon rod are both provided with at least one gap for air flow circulation, namely, the inner layer is a combustible carbon rod, the outer layer is a flame-retardant carbon rod, the inner layer and the outer layer are bonded by fixing the relative positions through friction force of contact surfaces, so that partial contact of the flame-retardant carbon rod to the combustible carbon rod is realized, the gap is in any shape and is randomly distributed, and any shape includes but is not limited to a cylinder, a square, a triangle, a wave, a spiral and an irregular shape.

Preferably, the filtering agent is a porous material loaded with metal oxide, and the material has the functions of adsorbing and catalyzing the reaction of CO and oxygen, and oxidizes CO in the incoming flow gas into CO₂Meanwhile, the adsorption and capture device can adsorb and capture small solid particles such as ash particles, carbon black and the like carried in part of the incoming flow gas.

Preferably, the metal oxide includes CuO, Fe₂O₃、MnO₂、CeO₂The loading amount of the metal oxide is 1-5%, and the loading method comprises but is not limited to an impregnation method, a precipitation method and a redox method in the known technology.

Preferably, the porous material comprises one or more of molecular sieve, zeolite, granular activated carbon, powdered alumina and powdered titanium oxide, and is used as a carrier of metal oxide on one hand and an adsorbing material on the other hand.

Preferably, the tobacco material comprises one or more of tobacco powder, tobacco sheet and cigarette cartridge.

Preferably, the length of the first carbon rod is 1-2mm longer than that of the second carbon rod, namely, the combustible carbon rod is 1-2mm longer than the flame-retardant carbon rod, the length of the flame-retardant carbon rod in the scheme is 8-15mm, and the reason for setting the length difference is that the double-layer carbon rods have a precedence order during combustion, firstly the combustible carbon rod quickly ignites and combusts to provide heat required for suction, meanwhile, the heat is transferred to the flame-retardant carbon rod through conduction, convection and radiation by the aid of combusted smoke and preheated air, the temperature of the flame-retardant carbon rod is increased, ignition of the flame-retardant carbon rod is facilitated, and further when the combustible carbon rod is in the later combustion stage, the flame-retardant carbon rod can continuously combust to provide heat required for suction.

Preferably, the first carbon rod comprises one or more of fruit charcoal, chrysanthemum charcoal, cotton stalk charcoal and tobacco charcoal, the carbon element content of the first carbon rod is not less than 60%, the carbon rod is fluffy and contains inflammable substances, the ignition point is 150-350 ℃, the burnout temperature is not more than 600 ℃, and the carbon rod can be used as an inflammable carbon rod.

Preferably, the second carbon rod comprises one or more of graphite powder, carbon fiber, coke, bamboo charcoal, activated carbon, coal, white carbon and binchotan, the carbon element content of the second carbon rod is not less than 80%, the carbon rod has a compact structure and high carbon content, the ignition point is 300-600 ℃, the burnout temperature is not more than 850 ℃, and the burning resistance is durable.

The invention has the beneficial effects that:

1. according to the scheme, the first carbon rod is used as a combustible carbon rod, the second carbon rod is used as a flame-retardant carbon rod to be subjected to spatial combination to form a carbon heat source of the composite double-layer carbon rod, the combustible carbon rod in the heat source can be rapidly ignited, and the flame-retardant carbon rod can be durable in burning and has the double advantages of being combustible and durable;

2. the double-layer carbon rods in the fuel section are different from a single carbon rod formed by mixing inflammable carbon and flame-retardant carbon in the prior art, and the phenomenon that incomplete combustion is caused by mutual influence of carbon particles with different combustion characteristics in the combustion process of the single carbon rod in the prior art is overcome;

3. the porous material that the loading that burns the flue gas purification section and pack has metallic oxide can effectively oxidize the CO that does not burn to the greatest extent, the flue gas of having avoided the carbon-point burning to produce is to the harm of human body, can effectively block the ash content that the carbon-point burning produced in addition, particulate matters such as carbon black are inhaled by the human body, can separate the carbon-point simultaneously and inhale the flue gas and take place the section, avoid the terminal direct material contact that can supply to inhale the flue gas with what fill of carbon-point, reduce the material that can supply to inhale the flue gas because the volatilization of the harmful material to human health that the high temperature leads to.

Drawings

FIG. 1 is a schematic structural view of a carbon rod-heated non-combustible tobacco product according to the present embodiment;

FIG. 2 is a schematic longitudinal cross-sectional view of a fuel section of a carbon rod-heated non-combustible smoking article according to example 1;

FIG. 3 is a schematic cross-sectional view of a fuel section of a carbon rod-heated non-combustible smoking article according to example 1;

FIG. 4 is a schematic longitudinal cross-sectional view of a fuel section of a carbon rod-heated non-combustible smoking article according to example 2;

FIG. 5 is a schematic cross-sectional view of a fuel section of a carbon rod-heated non-combustible smoking article according to example 2;

FIG. 6 is combustion test data of carbon rod-heated non-combustible tobacco products prepared in examples 1-3 and comparative example 1.

In the figure: 1. a fuel section; 2. a combustion flue gas purification section; 3. a smoke sucking generation section; 4. a first carbon rod; 41. a groove; 5. a second carbon rod; 6. a gap.

Detailed Description

The present invention will be described in further detail with reference to examples.

It will be appreciated by those skilled in the art that the following examples are illustrative of the invention only and should not be taken as limiting the scope of the invention. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available by purchase.

The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.

As used herein, the terms "combustible carbon rod" and "nonflammable carbon rod" refer to carbonaceous materials having a relatively low ignition point and a relatively high ignition point, respectively, the combustible carbon rod being equivalent to the first carbon rod described herein and the nonflammable carbon rod being equivalent to the second carbon rod described herein.

Example 1

A carbon rod heating non-combustible tobacco product comprises a fuel section 1, a combustion flue gas purification section 2 and a smoking flue gas generation section 3 which are sequentially connected.

The fuel section 1 is provided with a first carbon rod 4 and a second carbon rod 5 which are coaxial, the first carbon rod 4 and the second carbon rod 5 form a carbonaceous heat source in a double-layer carbon rod form, the ignition point and the burning resistance of the first carbon rod 4 and the second carbon rod 5 are obviously different, the ignition point of the first carbon rod 4 is 150 ℃, the burnout temperature of the first carbon rod 4 is 600 ℃, the ignition point of the second carbon rod 5 is 300 ℃, the burnout temperature of the second carbon rod 5 is less than or equal to 850 ℃, the first carbon rod 4 is regarded as a flame-retardant carbon rod, the carbon element content of the first carbon rod 4 is 60%, the second carbon rod 5 is coke, the carbon element content of the second carbon rod 5 is 80%, the length of the flame-retardant carbon rod is 8mm, the length of the combustible carbon rod is 9mm, and the moisture content of the first carbon rod 4 and the second carbon rod 5 is analyzed by a commercial instrument Selecting the contents of volatile components, fixed carbon and ash to judge whether the contents meet the definition requirements of the flammable carbon rod and the flame-retardant carbon rod; the second carbon rod 5 is accommodated in the first carbon rod 4, the first carbon rod 4 is a hollow carbon rod, the second carbon rod 5 is a solid carbon rod, the first carbon rod 4 wraps the second carbon rod 5, the inner surface of the first carbon rod 4 is attached to the outer surface of the second carbon rod 5, grooves (41) for increasing the surface area of the first carbon rod 4 are formed in the outer surface of the first carbon rod 4, the number of the grooves (41) is 2, and the grooves (41) can be in any shape, such as square grooves (41), groove shapes, wave shapes, spiral shapes and the like;

the combustion flue gas purification section 2 is filled with the filtering agent, the filtering agent is a porous material loaded with metal oxide, and the metal oxide is Fe₂O₃The porous material is activated carbon powder with the particle size of less than 1mm, and the metal oxide is loaded with Fe with the mass content of 1 percent on the activated carbon powder by an impregnation method₂O₃；

0.45g of tobacco raw material is filled in the smoking smoke generation section 3, and the tobacco raw material comprises a mixture of tobacco powder and tobacco sheets;

the process of using the carbon rod to heat the non-combustible tobacco product in the embodiment is as follows: the outer layer of the inflammable carbon rod is directly ignited by matches, the heat generated by the burning of the inflammable carbon rod heats the air flowing over the surface and the formed smoke, the air flows pass through the burning smoke purification section 2 under the action of suction force, the particles carried by the air flow are filtered, and the harmful gas CO in the smoke is catalytically oxidized into CO₂The purified air flow with a certain temperature heats the tobacco raw material of the smoking smoke generation section 3, and releases the smoke which can be smoked for the smoker to enjoy;

along with the continuous burning of easily burning carbon-point, the heat is through conducting the difficult fire carbon-point in inlayer, and when the temperature reached the firing temperature of difficult fire carbon-point, the difficult fire carbon-point can burn, and then continuously produces the heat and heat the air that flows through the surface and the flue gas that forms, these air currents pass through burning gas cleaning section 2 under the effect of suction force, and wherein the granule that the air current carried is filtered down, harmful gas CO is by catalytic oxidation for CO in the flue gas₂The purified air flow with a certain temperature heats the tobacco sheets of the smoking smoke generation section 3, and the smoking smoke is continuously released for smokers to enjoy.

Example 2

A carbon rod heating non-combustible tobacco product comprises a fuel section 1, a combustion flue gas purification section 2 and a smoking flue gas generation section 3 which are sequentially connected.

The fuel section 1 is provided with a first carbon rod 4 and a second carbon rod 5 which are coaxial, the first carbon rod 4 and the second carbon rod 5 form a carbonaceous heat source in a double-layer carbon rod form, the ignition point and the burning resistance of the first carbon rod 4 and the second carbon rod 5 are obviously different, the ignition point of the first carbon rod 4 is 350 ℃, the burnout temperature of the first carbon rod 4 is 580 ℃, the first carbon rod 4 is regarded as a combustible carbon rod, the ignition point of the second carbon rod 5 is 600 ℃, the burnout temperature of the second carbon rod 5 is 750 ℃, the first carbon rod 4 is regarded as a nonflammable carbon rod, the first carbon rod 4 comprises a mixture of chrysanthemum charcoal and cotton rod charcoal, the carbon element content of the first carbon rod 4 is 62%, the second carbon rod 5 is a mixture of black and brown charcoal, white charcoal and prepared and industrial and long charcoal, the carbon rod 5 has 86% of carbon elements, the nonflammable carbon rod has a length of 12mm, the combustible carbon rod has a length of 13mm, and it is worth noting that the first carbon rod 4 and the second carbon rod 5 adopt a water content analyzer thereof, Selecting the contents of volatile components, fixed carbon and ash to judge whether the contents meet the definition requirements of the flammable carbon rod and the flame-retardant carbon rod; the first carbon rod 4 is accommodated in the second carbon rod 5 and is in physical contact with the second carbon rod 5 through friction, the outer surface of the first carbon rod 4 is partially attached to the inner surface of the second carbon rod 5, gaps 6 for air flow circulation are formed in the outer surface of the first carbon rod 4 and the inner surface of the second carbon rod 5, 3 gaps 6 are formed in the first carbon rod 4, 5 gaps are formed in the second carbon rod 5, the gaps 6 can be randomly distributed in any shape, and air flow can not pass through the gaps.

The combustion flue gas purification section 2 is filled with the filtering agent, the filtering agent is a porous material loaded with metal oxide, and the metal oxide is MnO₂The porous material is a columnar formed molecular sieve, the metal oxide is coated on the molecular sieve by a precipitation method, and the loading capacity is 5%;

0.45g of tobacco raw material is filled in the smoking smoke generation section 3, and the tobacco raw material is an atomized sheet;

the process of using the carbon rod to heat the non-combustible tobacco product in the embodiment is as follows: igniting the head of a central combustible carbon rod by using a lighter, wherein the heat generated by the combustion of the combustible carbon rod heats the air flowing over the surface and the formed airFlue gases, which are drawn through a combustion flue gas cleaning stage 2, wherein particles carried by the flue gases are filtered off and the harmful gases CO in the flue gases are catalytically oxidized to CO₂The purified air flow with a certain temperature heats the tobacco sheets of the smoking smoke generation section 3, and releases the smoking smoke for smokers to enjoy.

Along with the continuous burning of inlayer easily fires the carbon-point, the heat is through conduction, convection current and radiation to inlayer fire-retardant carbon-point, when the temperature reaches fire temperature of fire-retardant carbon-point, fire-retardant carbon-point can burn, and then continuously produce the heat and heat the air that flows through the surface and the flue gas that forms, these air currents are through burning gas cleaning section 2 under the effect of suction force, wherein the granule that the air current carried is filtered off, harmful gas CO is catalytic oxidation to CO in the flue gas₂The purified air flow with a certain temperature heats the tobacco sheets of the smoking smoke generation section 3, and releases the smoke which can be used for smoking for being enjoyed by smokers for a long time.

Example 3

A carbon rod heating non-combustible tobacco product comprises a fuel section 1, a combustion flue gas purification section 2 and a smoking flue gas generation section 3 which are sequentially connected.

The fuel section 1 is provided with a first carbon rod 4 and a second carbon rod 5 which are coaxial, the first carbon rod 4 and the second carbon rod 5 form a carbonaceous heat source in a double-layer carbon rod form, the ignition point and the burning resistance of the first carbon rod 4 and the second carbon rod 5 are obviously different, the ignition point of the first carbon rod 4 is 300 ℃, the burnout temperature of the first carbon rod 4 is 580 ℃, the first carbon rod 4 is regarded as a combustible carbon rod, the ignition point of the second carbon rod 5 is 450 ℃, the burnout temperature of the second carbon rod 5 is less than or equal to 750 ℃, the second carbon rod is regarded as a non-combustible carbon rod, the first carbon rod 4 is a mixture of chrysanthemum charcoal and tobacco charcoal, the carbon element content of the first carbon rod 4 is 75%, the second carbon rod 5 is a mixture of graphite powder and carbon fiber, the carbon element content of the second carbon rod 5 is 85%, and the first carbon rod 4 and the second carbon rod 5 are analyzed by an analyzer for moisture and volatile components thereof, Fixing the content of carbon and ash to judge whether the definition requirements of the flammable carbon rod and the flame-retardant carbon rod are met; the first carbon rod 4 is accommodated in the second carbon rod 5 and is in physical contact with the second carbon rod 5 through friction, the length of a flame-retardant carbon rod is 12mm, the length of a combustible carbon rod is 13mm, the outer surface of the first carbon rod 4 is partially attached to the inner surface of the second carbon rod 5, gaps 6 for air flow circulation are formed in the outer surface of the first carbon rod 4 and the inner surface of the second carbon rod 5, at least one gap 6 is formed in each gap 6, each gap 6 can be in any shape, and air flow can pass through without obstruction;

the combustion flue gas purification section 2 is filled with the filtering agent, the filtering agent is a porous material loaded with metal oxides, and the metal oxides comprise CuO and CeO₂The porous material is granular activated carbon, and the metal oxide is loaded with CuO and CeO with the mass content of 3 percent on the granular activated carbon by a precipitation method₂A mixture of (a);

the smoking smoke generation section 3 is filled with 0.4g g tobacco raw material which is an atomized sheet;

the process of using the carbon rod to heat the non-combustible tobacco product in the embodiment is as follows: the head of a combustible carbon rod at the center is ignited by a lighter, the heat generated by the combustion of the combustible carbon rod heats the air flowing over the surface and the formed smoke, the air flows pass through the combustion smoke purification section 2 under the action of suction force, particles carried by the air flow are filtered, and the harmful gas CO in the smoke is catalytically oxidized into CO₂The purified air flow with a certain temperature heats the tobacco sheets of the smoking smoke generation section 3, and releases the smoking smoke for smokers to enjoy.

Along with the continuous burning of inlayer easily fires the carbon-point, the heat is through conduction, convection current and radiation to inlayer fire-retardant carbon-point, when the temperature reaches fire temperature of fire-retardant carbon-point, fire-retardant carbon-point can burn, and then continuously produce the heat and heat the air that flows through the surface and the flue gas that forms, these air currents are through burning gas cleaning section 2 under the effect of suction force, wherein the granule that the air current carried is filtered off, harmful gas CO is catalytic oxidation to CO in the flue gas₂The purified air flow with a certain temperature heats the tobacco sheets of the smoking smoke generation section 3 to release smoke for smokingThe smoker can enjoy the tea for a long time.

Comparative example 1

A carbon rod heating non-combustible tobacco product comprises a fuel section 1, a combustion flue gas purification section 2 and a smoking flue gas generation section 3 which are sequentially connected.

30 parts by weight of charcoal of 100 meshes, 15 parts by weight of black matrix charcoal of 200 meshes, 15 parts by weight of fruit charcoal of 1250 meshes, 1.5 parts by weight of montmorillonite powder of 1250 meshes, 13.5 parts by weight of non-aqueous glutinous rice glue of 200 meshes and 25 parts by weight of water are mixed and stirred uniformly in a mixing roll, the mixture is aged for 10 minutes, a carbon rod is extruded by a screw extrusion molding machine, the extrusion molding pressure is 2MPa and the temperature is 85 ℃, the extruded carbon rod is dried in air flow, the temperature of the air is kept at 60 ℃, and the moisture content of the carbon rod after drying is lower than 10%. Dissolving 2 parts by weight of potassium malate in 100 parts by weight of water, soaking a carbon rod in the solution for not less than 2 seconds, taking out, blowing away liquid drops on the surface of the carbon rod, putting the carbon rod into a microwave heating cavity, adjusting the power of microwaves, and ensuring that the temperature of air flowing in the heating cavity is 105 ℃ to obtain the fuel section 1.

The combustion flue gas purification section 2 is filled with the filtering agent, the filtering agent is a porous material loaded with metal oxide, and the metal oxide comprises MnO₂The porous material is a molecular sieve, and MnO2 with the mass content of 1% is loaded on the molecular sieve by a precipitation method through the metal oxide;

the smoking smoke generation section 3 is filled with 0.45g of tobacco raw materials, and the tobacco raw materials comprise one or more of tobacco powder and tobacco sheets.

Comparative example 2

A carbon rod heating non-combustible tobacco product comprises a fuel section 1, a combustion flue gas purification section 2 and a smoking flue gas generation section 3 which are sequentially connected.

30 parts by weight of charcoal of 100 meshes, 15 parts by weight of black matrix charcoal of 200 meshes, 15 parts by weight of fruit charcoal of 1250 meshes, 1.5 parts by weight of montmorillonite powder of 1250 meshes, 13.5 parts by weight of non-aqueous glutinous rice glue of 200 meshes and 25 parts by weight of water are mixed and stirred uniformly in a mixing roll, the mixture is aged for 10 minutes, a carbon rod is extruded by a screw extrusion molding machine, the extrusion molding pressure is 2MPa and the temperature is 85 ℃, the extruded carbon rod is dried in air flow, the temperature of the air is kept at 60 ℃, and the moisture content of the carbon rod after drying is lower than 10%. Dissolving 2 parts by weight of potassium malate in 100 parts by weight of water, soaking a carbon rod in the solution for not less than 2 seconds, taking out, blowing away liquid drops on the surface of the carbon rod, putting the carbon rod into a microwave heating cavity, adjusting the power of microwaves, and ensuring that the temperature of air flowing in the heating cavity is 105 ℃ to obtain the fuel section 1.

The combustion flue gas purification section 2 is filled with tobacco shreds;

the smoking smoke generation section 3 is filled with 0.45g of tobacco raw material, and the tobacco raw material is tobacco powder.

Test data

The carbon rod-heated non-combustible tobacco products prepared in the above-described examples 1 to 3 and comparative examples 1 to 2 were subjected to a combustion test in air to determine the combustion effect, and the specific test results of the respective parameters are shown in fig. 6, in which "surface combustion rate (cm/min)" is the moving rate of the red-hot combustion line on the surface of the fuel section 1, i.e., faster surface combustion rate indicates easier combustion, and "overall combustion rate (cm/min)" is the reciprocal of the combustion time that the fuel section 1 per unit length can burn, i.e., slower overall combustion rate indicates longer combustion.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.