CN206880054U - A kind of hot trapping prepares the device of smoke spices - Google Patents

Abstract

The utility model provides a device for preparing smoke and spices by heat capture, which includes a pyrolysis device and a capture device; the pyrolysis device includes a sample heating device, a sample carrying device arranged on the sample heating device, and a sample carrying device. The device is connected to a gas source through a pipeline, and a flow control device is set on the pipeline; the trapping device includes a solvent carrying device connected to the inlet of the flue gas and the outlet of the sample heating device, a solvent heating device for heating the solvent carrying device, and a A condensing device connected to the solvent carrying device and connected to the vapor outlet of the solvent carrying device. Compared with the normal temperature or low temperature solvent cold hydrazine absorption device, the solvent reflux capture device adopted by the utility model can improve the capture efficiency, save the amount of solvent used, increase the concentration of aroma substances in the capture liquid, improve the quality of e-liquid, and realize the use of a small amount of The solvent traps a large amount of product, reducing the frequency of changing solvents. The device of the utility model is simple and economical, easy to realize industrial batch production, and has good application prospects.

Description

A device for preparing smoke flavor and fragrance by thermal trapping

technical field

The utility model relates to the technical field of cigarettes, in particular to a device for preparing smoke fragrance by heat capture.

Background technique

Traditional cigarettes meet the needs of consumers by igniting shredded tobacco to produce smoke. When cigarettes are burned, they undergo material volatilization, pyrolysis and high-temperature synthesis, so that there are as many as 7,300 compounds in the smoke, of which combustion (the highest temperature is nearly 900°C) There are 2,740 substances produced, some of which are related to the characteristic aroma of cigarettes, but some substances are harmful to the human body (such as CO, benzo[α]pyrene, fused-ring aromatic hydrocarbons, etc.).

Due to the continuous upsurge of smoking and the environment, the anti-smoking movement, and the health needs of smokers, low-tar, low-harm cigarettes are paid more attention to, and new types of unburned tobacco products are also booming. Replacing traditional cigarettes by using electronic cigarettes or heat-not-burn cigarettes is the current development direction in the tobacco field. In electronic cigarettes and heat-not-burn cigarettes, nicotine and most tobacco flavor components can be transferred to the smoke at a relatively low temperature (usually lower than 500°C), so no harmful substances produced by high-temperature combustion of cigarettes will be produced and sidestream smoke, which can greatly reduce the harm of cigarettes to human health and pollution to the environment.

The principle of new tobacco products that have smoke but do not burn, such as electronic cigarettes or heat-not-burn cigarettes, is to volatilize glycerin, propylene glycol and other fog-forming substances, alkaloids, aroma substances present in tobacco or added, and other flavoring ingredients through heating. Come out to form an aerosol for the smoker to enjoy. Although these products have made great progress in technology, there is a big gap between these products in the market and traditional cigarettes in terms of taste and aroma style. The reason is that the lack of traditional cigarette combustion and high-temperature dry distillation pyrolysis process also loses the unique flavor components in the smoke based on these processes, making it difficult for smokers to obtain the unique sensory enjoyment of traditional cigarettes. The method of thing and existing essence and fragrance all can't make up for this defective.

To this end, people use high-temperature pyrolysis to process tobacco, imitate complex reaction processes such as pyrolysis and Maillard in the combustion process of traditional cigarettes, and obtain tobacco reaction products and use them in new tobacco products. To a certain extent, Make up for the shortcomings of new tobacco products such as electronic cigarettes or heat-not-burn cigarettes, such as lack of flavor, lack of or inconspicuous smoke characteristics, etc.

However, the research on tobacco pyrolysis in the prior art mainly focuses on the influence of pyrolysis temperature on product safety and sensory properties. The existing heating method will lead to uneven heating of the tobacco material, wherein the temperature of the part in contact with the heater is higher, and the temperature of the part far away from the heater is lower, which is prone to burnt phenomenon and affects the taste of the carbonized distillate. At the same time, the existing technology often uses pyrolysis in a closed container, and the tobacco powder is easy to turn black during the anaerobic high-temperature heating process, and black vape oil is easily produced, and the obtained product has a strong smoky taste. At the same time, the prior art has the problem of poor collection efficiency.

Utility model content

In view of this, the technical problem to be solved by the utility model is to provide a device for preparing smoke flavor and fragrance by thermal trapping. High content.

The utility model provides a device for preparing smoke and spices by thermal trapping, which includes a pyrolysis device and a trapping device;

The pyrolysis device includes: a sample heating device, a sample carrying device arranged on the sample heating device, a gas source connected to the sample carrying device through a pipeline, and a flow control device is arranged on the pipeline;

The trapping device includes: a solvent carrying device with a flue gas inlet connected to the outlet of the sample heating device, a solvent heating device for heating the solvent carrying device, and a solvent carrying device arranged on the solvent carrying device and connected to the steam outlet of the solvent carrying device Condenser.

Preferably, the sample heating device is a heater; the sample carrying device is a flask; and the flow control device is a flow valve.

Preferably, the heater is selected from one of electric heating, microwave heating, infrared heating and electron beam heating; the solvent bottle is a three-necked flask.

Preferably, the solvent carrying device is arranged on the solvent heating device.

Preferably, the solvent carrying device is a solvent bottle; the condensing device is a condensing tube.

Preferably, the solvent bottle is a three-necked flask.

Preferably, the sample carrying device is connected to the solvent carrying device through a connecting pipe, and a switching valve is arranged on the connecting pipe.

Preferably, the end of the connecting tube at the outlet of the sample carrying device is immersed in the solvent in the solvent carrying device.

Preferably, the solvent in the solvent carrying device is selected from one or more of water, ethanol, ether, acetone, petroleum ether, solvent naphtha, n-hexane, cyclohexane, pentane, methylene chloride and ethyl acetate. kind.

Preferably, the gas in the gas source is an inert gas.

Compared with the prior art, the utility model provides a device for preparing smoke flavor and fragrance by thermal trapping, including a pyrolysis device and a trapping device; the pyrolysis device includes a sample heating device, a heating device arranged on the sample heating device A sample carrying device, a gas source connected to the sample carrying device through a pipeline, and a flow control device is arranged on the pipeline; the trapping device includes a solvent carrying device whose smoke inlet is connected to the outlet of the sample heating device, and a gas source for heating the solvent carrying device. A solvent heating device and a condensing device arranged on the solvent carrying device and connected to the vapor outlet of the solvent carrying device. Compared with the normal temperature or low temperature solvent cold hydrazine absorption device, the solvent reflux capture device adopted by the utility model can improve the capture efficiency, save the amount of solvent used, increase the concentration of aroma substances in the capture liquid, improve the quality of e-liquid, and realize the use of a small amount of The solvent traps a large amount of product, reducing the frequency of changing solvents. The device of the utility model is simple and economical, easy to realize industrial batch production, and has good application prospects.

Description of drawings

Fig. 1 is a device for preparing smoke flavor and fragrance by heat trapping according to one embodiment of the present invention.

detailed description

The utility model provides a device for preparing smoke and spices by thermal trapping, which includes a pyrolysis device and a trapping device;

The pyrolysis device includes: a sample heating device, a sample carrying device arranged on the sample heating device, a gas source connected to the sample carrying device through a pipeline, and a flow control device is arranged on the pipeline;

The trapping device includes: a solvent carrying device with a flue gas inlet connected to the outlet of the sample heating device, a solvent heating device for heating the solvent carrying device, and a solvent carrying device arranged on the solvent carrying device and connected to the steam outlet of the solvent carrying device Condenser.

The device for preparing smoke flavor provided by the utility model includes a pyrolysis device.

The pyrolysis device includes a sample heating device, a sample carrying device arranged on the sample heating device, a gas source connected to the sample carrying device through a pipeline, and a flow control device is arranged on the pipeline.

The pyrolysis device provided by the utility model is used for heating and decomposing tobacco samples to generate smoke.

According to the utility model, the pyrolysis device includes a sample heating device. The utility model does not limit the heating device, and the heating device known to those skilled in the art can heat the sample. The sample heating device is preferably a heater. The utility model does not limit the heating method, including but not limited to electric heating, microwave heating, infrared heating, electron beam heating and the like.

The pyrolysis device includes a sample carrier. The utility model does not limit the sample carrying device, as long as it can carry samples. Flasks are preferred; including but not limited to round bottom flasks.

According to the utility model, the pyrolysis device includes a gas source connected to the sample carrying device through a pipeline,

The utility model does not limit the gas source, as long as those skilled in the art are familiar with it. The gas source is preferably provided with an inert gas, more preferably nitrogen.

The utility model does not limit the pipeline, and the pipeline well-known by those skilled in the art will suffice. Gas can be generated to drive pyrolysis flue gas into the solvent carrying device.

Wherein, a flow control device is arranged on the pipeline; the flow control device is preferably a gas flow valve.

The pyrolysis described in the utility model is pyrolysis in a closed environment.

The trapping device provided by the utility model includes: a solvent carrying device connected to the inlet of the flue gas and the outlet of the sample heating device, a solvent heating device for heating the solvent carrying device and arranged on the solvent carrying device, and is connected with the solvent carrying device A condensing unit connected to the steam outlet of the unit.

According to the utility model, the trapping device includes a solvent carrying device in which the smoke inlet is connected with the outlet of the sample heating device.

Wherein, the solvent carrying device is preferably arranged on the solvent heating device.

The sample carrying device is connected to the solvent carrying device through a connecting pipe. The utility model does not limit the connecting pipe, and the connecting pipe well-known to those skilled in the art is sufficient. Wherein, the connecting pipe is preferably provided with a switching valve.

In the present utility model, the solvent carrying device is provided with a smoke inlet and a solvent carrying device steam outlet.

According to the utility model, the solvent carrying device is preferably a sample bottle; more preferably a three-neck flask.

Preferably, the end of the pipeline at the outlet of the smoke collection hood is immersed in the solvent in the solvent holding device.

A solvent is arranged in the solvent carrying device of the utility model; the solvent is preferably one of water, ethanol, ether, acetone, petroleum ether, solvent oil, n-hexane, cyclohexane, pentane, dichloromethane and ethyl acetate species or several.

According to the present invention, the trapping device includes a solvent heating device for heating the solvent carrying device; preferably, the solvent carrying device of the present invention is arranged on the solvent heating device.

The utility model does not limit the solvent heating device, as long as those skilled in the art are familiar with it. An adjustable thermostatic heater is preferred. The above device can be used to heat the solvent to make the solvent boil, and the device contains solvent vapor to better absorb the smoke.

The flue gas described in the utility model exists in the form of aerosol, and the condensation and trapping disclosed in the prior art, and the normal temperature or low temperature solvent absorption effect are poor. This is because the pyrolysis product of tobacco powder is an aerosol with strong stability. It is not easy to condense at room temperature or general low temperature. The absorption effect of solvent at room temperature or low temperature is limited, the solubility is low, and it is easy to absorb saturation. Therefore, the absorption liquid needs to be replaced frequently. The solvent demand big.

According to the utility model, the trapping device includes a condensing device arranged on the solvent carrying device and connected to the vapor outlet of the solvent carrying device.

In the utility model, one end of the condensing device is connected to the steam outlet of the solvent carrying device, and the other end is open.

The utility model does not limit the condensing device, which is well known to those skilled in the art, and is preferably a condensing tube. The utility model does not limit the liquid in the condensation pipe, which is well known by those skilled in the art, and can be normal temperature water or low temperature solution.

One end of the condensing pipe in the utility model is connected with the steam outlet of the carrying device for condensing the solvent vapor and the flue gas steam, and the other end is opened to discharge the gas from the gas source.

One end of the connection pipe between the solvent carrying device and the sample carrying device of the utility model is preferably inserted into the solvent in the solvent bottle, thereby improving the collection efficiency.

The utility model provides a device for preparing smoke and spices by heat capture, which includes a pyrolysis device and a capture device; the pyrolysis device includes a sample heating device, a sample carrying device arranged on the sample heating device, and a sample carrying device. The device is connected to a gas source through a pipeline, and a flow control device is set on the pipeline; the trapping device includes a solvent carrying device connected to the inlet of the flue gas and the outlet of the sample heating device, a solvent heating device for heating the solvent carrying device, and a A condensing device connected to the solvent carrying device and connected to the vapor outlet of the solvent carrying device. Compared with the normal temperature or low temperature solvent cold hydrazine absorption device, the solvent reflux capture device adopted by the utility model can improve the capture efficiency, save the amount of solvent used, increase the concentration of aroma substances in the capture liquid, improve the quality of e-liquid, and realize the use of a small amount of The solvent traps a large amount of product, reducing the frequency of changing solvents. The device of the utility model is simple and economical, easy to realize industrial batch production, and has good application prospects.

The device for preparing smoke-flavored spices by thermal trapping described in one embodiment of the utility model is shown in Figure 1, and Figure 1 is the device for preparing smoke-flavored flavors by thermal trapping described in one embodiment of the utility model, wherein, 1 is the sample heating device, 2 is the sample carrying device; 3 is the condensation device; 4 is the solvent carrying device, 5 is the solvent heating device, 6 is the connecting pipe; 7 is the switch valve, 8 is the flow control device, and 9 is the gas source.

The utility model provides a method for preparing smoke fragrance by thermal trapping, comprising:

The tobacco sample is placed on the sample carrying device, and is pyrolyzed by the sample heating device to obtain pyrolyzed smoke;

After the gas provided by the gas source is adjusted by the flow control device, it carries the pyrolyzed flue gas into the solvent carrying device, mixes with the solvent vapor obtained from the solvent heated by the solvent heating device, condenses in the condensing device, and absorbs the solvent in the solvent carrying device to obtain Absorbing liquid, the absorbing liquid is concentrated to obtain the flavor of smoke.

The method for preparing smoke-flavored spices provided by the utility model first places a tobacco sample on a sample carrying device, and is pyrolyzed by a sample heating device to obtain pyrolyzed smoke.

The utility model does not limit the tobacco sample, but can be pyrolyzed to prepare a tobacco sample with flavor and fragrance, and its shape is not limited, tobacco leaves, shredded tobacco and tobacco powder can be used; preferably tobacco powder.

In the present utility model, the tobacco sample is preferably pretreated before being placed on the sample carrying device, and the pretreatment is preferably to treat the tobacco sample with an enzyme, and the enzyme is selected from one of cellulase and pectinase or Several kinds. The method of the enzyme treatment is specifically:

Adjust the moisture content of the tobacco powder to 15%-20%, and then add a compound enzyme, which contains cellulase and pectinase, and the mass ratio of cellulase and pectinase is 1:1-10; preferably, the fiber The mass ratio of the enzyme and the pectinase is 1:1～5, wherein the enzyme activity of the cellulase used is 150,000 U/g, and the enzyme activity of the pectinase used is 30,000 U/g; The amount of enzyme added is 0.01% to 1.0% of the mass of tobacco powder, preferably 0.05% to 1.0%; the enzymolysis temperature is 30 to 60°C, preferably 40 to 50°C; the enzymolysis time is 4 to 24 hours, preferably 6 to 50°C 10 hours.

Preferably, the moisture in the tobacco powder is adjusted to 18%, and then 0.005g of compound enzyme is added per gram of tobacco powder (the mass ratio of cellulase and pectinase is 1:2), and the enzyme is mixed at 45°C It was hydrolyzed for 8 hours, and then used for pyrolysis after enzymatic hydrolysis. Compared with the product obtained by direct pyrolysis without enzymatic hydrolysis, the product obtained by pyrolysis after enzymatic hydrolysis has a stronger roasted aroma and a more comfortable taste.

After the enzyme treatment, the moisture content is preferably adjusted. Enzymes can degrade cell wall substances, making it easier to release aroma substances, and produce aroma substances after pyrolysis of degradation products; adjusting water can keep the moisture content at a certain value, and bring out aroma substances while water evaporates during the heating process. At the same time, it is ensured that the tobacco material can reach the required temperature within the same time.

The pretreatment of the utility model can also be mixed with the Maillard reaction raw material in the smoke powder material to adjust the moisture content. The raw material of the Maillard reaction can be sugar and/or amino acid, and the subsequent heating is used to cause a Maillard reaction between the added substances or between the added substances and the chemical components of the tobacco powder to generate flavor substances.

The pretreatment of the utility model can also be mixed with the atomizing agent in the smoke powder material to adjust the moisture content. The atomizing agent is propylene glycol or glycerin. The atomizing agent infiltrates the tobacco raw material, which can reduce the burnt smell caused by the coking of the tobacco raw material during the pyrolysis process. Dissolving aroma components and atomizing them in the pyrolysis device can also carry aroma components.

The pyrolysis temperature of the utility model is preferably 200°C-450°C; more preferably 250°C-350°C; the pyrolysis time is preferably 5-180min; more preferably 10-150min.

According to the utility model, the flow rate of the gas provided by the gas source is adjusted by the flow control device. The gas provided by the gas source here is preferably an inert gas or air. By controlling the gas flow rate, the flow rate of the flue gas carried by the gas is controlled. The utility model does not limit the gas flow rate. It depends on the size of the overall device. Preferably, both the solvent vapor and the flue gas can be well condensed.

After the gas provided by the gas source is adjusted by the flow control device, it carries the pyrolyzed flue gas into the solvent carrying device, mixes with the solvent vapor obtained from the solvent heated by the solvent heating device, condenses in the condensing device, and absorbs the solvent in the solvent carrying device to obtain Absorb fluid.

Wherein, the solvent described in the utility model is preferably one or more of water, ethanol, ether, acetone, sherwood oil, solvent naphtha, normal hexane, cyclohexane, pentane, methylene chloride and ethyl acetate; It is preferably one or more of ethanol, ether, acetone, petroleum ether, solvent naphtha, n-hexane and cyclohexane; most preferably ethanol.

The concentration of the ethanol solution is preferably 90%-95%. The gas flow rate is preferably 100-120 mL/min.

The solvent heating means preferably heats the solvent to boiling. The temperature can be at or above the boiling point of the solvent. The circulating fluid in the condensing device is provided with water or a low-temperature solvent.

After the absorption liquid is obtained, the absorption liquid is concentrated to obtain the flavor of smoke.

The present invention does not limit the specific method of concentration, which is known to those skilled in the art. Concentration under reduced pressure is preferred.

Compared with the normal temperature or low temperature solvent absorption method, the utility model adopts the solvent reflux capture method, which can improve the capture efficiency, save the amount of solvent used, increase the concentration of aroma substances in the capture liquid, improve the quality of e-liquid, and realize the capture of a large amount with a small amount of solvent. products, reducing the frequency of replacement and dissolution. The principle is that the aerosol after pyrolysis of tobacco powder and solvent vapor enters the condenser tube together. During the mixing process, the stability of the original aerosol is destroyed, and the pyrolysis product of tobacco powder is It has greater solubility in the solvent or solvent vapor, and returns to the solvent along with the condensation of the solvent vapor, thereby improving the capture efficiency and the concentration of aroma substances in the e-liquid. Tobacco material pretreatment can improve product quality. Subsequent treatments such as pyrolysis product refining, pyrolysis residue extraction, and product assembly can not only make full use of raw tobacco powder, but also further improve product quality.

The utility model preferably analyzes the aroma components of the prepared smoke fragrance by GC-MS, and the analysis conditions are as follows:

Sample pretreatment: A certain amount of anethole was added to the capture solution as an internal standard, concentrated, and analyzed after passing through the membrane.

Gas chromatography-mass spectrometry parameters:

Gas chromatography: analytical column is HP-5MS (30m×0.25mm×0.25um); carrier gas is helium, purity ≥99.999%; constant flow mode, flow rate is 1.0mL/min; inlet temperature is 250°C; The ratio is 10:1; the column temperature adopts a temperature program method: the initial temperature is 50°C, keep for 2min, then raise the temperature to 250°C at 5°C/min, and keep for 30min.

Mass spectrometry: transfer line temperature 250°C; ionization method: electron bombardment source (EI+); monitoring method: full scan mode qualitative, scanning range: 33-550amu; ionization energy: 70eV; ion source temperature 200°C; quadrupole temperature: 150 °C; solvent delay: 6.5 min.

In the utility model, the absorbing liquid is mixed with propylene glycol and glycerol at a ratio of 1:1:1 (volume ratio) and then used for electronic cigarettes. Experts are invited to comment and smoke.

In order to further illustrate the utility model, the device and method for preparing the smoke flavor provided by the utility model are described in detail below in conjunction with the examples.

Example 1

Connect the device according to the utility model, specifically: place the sample flask on the adjustable constant temperature heater, place the three-necked flask on the solvent heater, open the nitrogen gas source, adjust the gas flow valve, and the flue gas inlet of the three-necked flask It is connected to the gas outlet of the sample flask, the steam outlet is connected to the condensing device, and the other end of the condensing device is opened.

Example 2

Connect the device according to Example 1 of the utility model, add 60mL95% ethanol solution in advance in the three-necked flask, close the on-off valve, turn on the solvent heater, and set its temperature to 80°C, add 10 grams of smoke powder in advance in the sample container, After the solvent in the solvent bottle starts to boil, open the switch valve and the gas flow valve at the same time, so that the nitrogen flow rate provided by the gas source is 100mL/min, turn on the sample heater and set the temperature to 350°C, and perform pyrolysis for 1 hour. After pyrolysis, use 10mL of 95% ethanol solution to wash out the flue gas condensate in the connecting pipe, and combine it with the solvent in the solvent bottle, use 95% ethanol to make up the volume of the combined solution to 80mL, take 20mL of the liquid, concentrate and dry it for use GC/MS analysis of its aroma components, another 20mL of liquid mixed with propylene glycol and glycerol at a ratio of 1:1:1 (volume ratio) was used for electronic cigarettes, and experts were invited to comment on smoking.

Comparative example 1

The present embodiment is basically the same as Example 2, except that solvent cold capture is adopted, specifically: one end of the connecting pipe (7) is connected with 3 series-connected absorption bottles, and 20mL95% ethanol solution is housed in each absorption bottle. Place the absorption bottle in a cold trap at -15°C. After the pyrolysis, combine the solvents of the three absorption bottles, wash out the flue gas condensate in the connecting tube with 10mL 95% ethanol solution, and make up the volume of the combined solution to 80mL with 95% ethanol , Take 20mL of the liquid, concentrate and dry it, and analyze its aroma components by GC/MS. Take another 20mL of the liquid, mix it with propylene glycol and glycerol at a ratio of 1:1:1 (volume ratio), and then use it in electronic cigarettes. Experts are invited to smoke it.

Example 3

Connect the device according to Example 1 of the utility model, add 60mL95% ethanol solution in advance in the three-necked flask, close the on-off valve, turn on the solvent heater, and set its temperature to 80°C, add 10 grams of smoke powder in advance in the sample container, After the solvent in the solvent bottle starts to boil, open the switch valve and the gas flow valve at the same time, so that the nitrogen flow rate provided by the gas source is 100mL/min, turn on the sample heater and set the temperature to 350°C, and perform pyrolysis for 1 hour. Three pyrolyzed samples were captured consecutively without changing the capture solvent. After pyrolysis, use 10mL of 95% ethanol solution to wash out the flue gas condensate in the connecting pipe, combine it with the solvent in the solvent bottle, use 95% ethanol to make up the volume of the combined solution to 80mL, take 20mL of the liquid, concentrate and dry it, and use GC /MS to analyze its aroma components, and take another 20mL of liquid mixed with propylene glycol and glycerol at a ratio of 1:1:1 (volume ratio) and use it in electronic cigarettes. Experts are invited to comment on smoking.

Example 4

Connect the device according to Example 1 of the present utility model, add 60 mL of 95% ethanol solution in advance into the three-necked flask, close the on-off valve, turn on the solvent heater, and set its temperature to 80 ° C, add 10 grams of the enzymolyzed solution in the sample container in advance For the treated tobacco powder, the enzymatic hydrolysis treatment is as follows: adjust the moisture content of the tobacco powder to 18%, and then add 0.005g of compound enzyme per gram of tobacco powder (the mass ratio of cellulase and pectinase is 1:2), After mixing, it was enzymatically hydrolyzed at 45°C for 8 hours, and then used for pyrolysis after enzymatic hydrolysis. After the solvent in the solvent bottle starts to boil, open the switch valve and the gas flow valve at the same time, so that the nitrogen flow rate provided by the gas source is 100mL/min, turn on the sample heater and set the temperature to 350°C, and perform pyrolysis for 1 hour. After pyrolysis, use 10mL of 95% ethanol solution to wash out the flue gas condensate in the connecting pipe, and combine it with the solvent in the solvent bottle, use 95% ethanol to make up the volume of the combined solution to 80mL, take 20mL of the liquid, concentrate and dry it for use GC/MS analysis of its aroma components, another 20mL of liquid mixed with propylene glycol and glycerol at a ratio of 1:1:1 (volume ratio) was used for electronic cigarettes, and experts were invited to comment on smoking.

Comparative example 2

This example is basically the same as Comparative Example 2, except that 3 pyrolysis samples were captured continuously without changing the capture solvent. Specifically: one end of the connecting pipe (7) is connected to three series-connected absorption bottles, each absorption bottle is equipped with 20mL95% ethanol solution, the absorption bottle is placed in a -15°C cold trap, and the three absorption bottles are combined after the pyrolysis is completed , continuously capture 3 pyrolysis samples without changing the capture solvent. And use 10mL95% ethanol solution to wash out the flue gas condensate in the connecting pipe, use 95% ethanol to make up the volume of the combined solution to 80mL, take 20mL of the liquid and analyze its aroma components by GC/MS after concentration and drying, and another 20mL of the liquid and Propylene glycol and glycerin are mixed according to 1:1:1 (volume ratio) and then used in electronic cigarettes. Experts are invited to comment on smoking.

Example 5

Expert evaluation results: when the products obtained in Example 2 and Comparative Example 1 are used in electronic cigarettes, they all have burnt, roasted, and smoky aromas, and have the main aroma style and taste close to traditional cigarettes, and the difference between the two is not obvious When the products obtained in Example 3 and Comparative Example 2 are used in electronic cigarettes, they all have strong burnt aroma, baking aroma, and smoke aroma, but the aroma intensity of Example 2 is obviously greater than that of Comparative Example 2; Compared with Example 2, when the product obtained in Example 4 is used in electronic cigarettes, it has a stronger roasted aroma and a more comfortable taste, and its sensory quality is obviously better than that of Example 2.

GC/MS analysis fragrance composition result shows that the content of the main roasted fragrance substances (such as furfural, 5-methylfurfural, 5-hydroxymethylfurfural, etc.) of Example 4 is more than 1.2 times that of Example 2; using the same solvent , using the method of solvent vapor capture, its capture efficiency is significantly higher than that of the solvent cold capture method. The comparison results of some representative aroma components are shown in the table below.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made, these improvements and Retouching should also be regarded as the scope of protection of the present utility model.

Claims (10)

1. a kind of hot trapping prepares the device of smoke spices, it is characterised in that including pyrolysis installation and capturing device；

Pyrolysis installation includes：Sample heating device, the sample bearing device being arranged on the sample heating device, hold with sample The source of the gas put and be connected by pipeline is carried, volume control device is set on pipeline；

Capturing device includes：It is solvent bogey that the outlet of smoke inlet and sample heating device is connected, described molten for heating The solvent heater of agent bogey and be arranged on the solvent bogey, and with solvent bogey steam (vapor) outlet phase Condensing unit even.

2. device according to claim 1, it is characterised in that the sample heating device is heater；The sample is held Carry and be set to flask；The volume control device is flow valve.

3. device according to claim 2, it is characterised in that the heater is selected from electrical heating, microwave heating, infrared ray One kind in heating and electron beam heating；The solvent bottle is three-necked flask.

4. device according to claim 1, it is characterised in that the solvent bogey is arranged at the solvent heating dress Put.

5. device according to claim 1, it is characterised in that the solvent bogey is solvent bottle；The condensation dress It is set to condenser pipe.

6. device according to claim 1, it is characterised in that the solvent bottle is three-necked flask.

7. device according to claim 1, it is characterised in that the sample bearing device passes through company with solvent bogey Adapter is connected, and switch valve is provided with the connecting tube.

8. device according to claim 1, it is characterised in that the connection pipe end of the sample bearing device outlet immerses In solvent in solvent bogey.

9. device according to claim 1, it is characterised in that solvent in the solvent bogey be selected from water, ethanol, One or more in ether, acetone, petroleum ether, solvent naphtha, n-hexane, hexamethylene, pentane, dichloromethane and ethyl acetate.

10. device according to claim 1, it is characterised in that the gas in the source of the gas is inert gas.