A method for obtaining a predicted value of the moisture content of finished cut tobacco

Abstract

The present invention discloses a method for obtaining a predicted value of the moisture content of finished cut tobacco, including: establishing a prediction model for the moisture content of finished cut tobacco based on the moisture content values of each blending material of the finished cut tobacco sample, the blending weight value per unit time of each blending material, the moisture content value of the cut tobacco to be pneumatically conveyed, and the moisture content value of the finished cut tobacco; obtaining the moisture content values of each blending material of the finished cut tobacco to be produced and the blending weight value per unit time of each blending material, substituting them into the prediction model for the moisture content of finished cut tobacco, and obtaining the predicted value of the moisture content of the finished cut tobacco. The present invention can obtain the predicted value of the moisture content of the finished cut tobacco at the blending stage. By comparing the predicted value with the standard range of the moisture content of the finished cut tobacco, it can be determined at the blending stage whether the finished cut tobacco to be produced is out of standard, effectively alleviating the lag problem of the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of cigarettes, and particularly relates to a method for obtaining a predicted value of the moisture content of finished cut tobacco. Background Art

[0002] During the manufacturing process of finished cut tobacco, since there is no constant temperature and humidity environment in the processes of making stem cut tobacco, making expanded cut tobacco, and leaf cut tobacco expansion and drying, the moisture content of the stem cut tobacco, expanded cut tobacco, and leaf cut tobacco used for blending into finished cut tobacco will fluctuate with the changes in environmental temperature and humidity, which may cause the moisture content of the finished cut tobacco to deviate from the standard (that is, the moisture content is less than the minimum value or greater than the maximum value of the moisture content standard range). As one of the key factors affecting cigarette quality, too low moisture content of the finished cut tobacco will increase the breakage of the cut tobacco, and may also increase the amount of cut tobacco falling off at the end of the cigarette. Too high moisture content of the finished cut tobacco may cause mildew of the cut tobacco in the cigarette, and will also affect the combustion characteristics of the cigarette. Currently, the methods for judging whether the moisture content of the finished cut tobacco deviates from the standard are all to detect the moisture content of the produced finished cut tobacco and compare the detected value with the standard range of the moisture content of the finished cut tobacco. If the detected value deviates from the standard, the production will be adjusted. However, this method has a lag problem in production: since a large amount of materials have been put into the production line when the finished cut tobacco is produced, even if the production is adjusted immediately when it is known that the detected value deviates from the standard, a large amount of finished cut tobacco with moisture content deviating from the standard will be produced, resulting in serious waste. Summary of the Invention

[0003] The purpose of the present invention is to solve the lag problem existing in the existing methods for judging whether the moisture content of the finished cut tobacco deviates from the standard. The present invention provides a method for obtaining a predicted value of the moisture content of the finished cut tobacco, and the predicted value of the moisture content of the finished cut tobacco can be obtained at the blending stage. By comparing the predicted value with the standard range of the moisture content of the finished cut tobacco, it can be judged at the blending stage whether the finished cut tobacco to be produced deviates from the standard, which can effectively alleviate the lag problem of the existing technology.

[0004] To solve the above technical problems, the present invention discloses a method for obtaining a predicted value of the moisture content of the finished cut tobacco, including: establishing a prediction model for the moisture content of the finished cut tobacco according to the moisture content values of each blending material of the finished cut tobacco sample, the blending weight value per unit time of each blending material, the moisture content value of the pneumatically conveyed cut tobacco, and the moisture content value of the finished cut tobacco; obtaining the moisture content values of each blending material of the finished cut tobacco to be produced and the blending weight value per unit time of each blending material, substituting them into the prediction model for the moisture content of the finished cut tobacco, and obtaining the predicted value of the moisture content of the finished cut tobacco.

[0005] The finished cut tobacco sample and the finished cut tobacco to be produced are of the same brand.

[0006] Optionally, the finished cut tobacco moisture prediction model includes a first model and a second model. The first model is used to obtain the predicted value of the moisture of the cut tobacco to be pneumatically conveyed based on the moisture values of the blending materials to be used in the finished cut tobacco and the blending weights per unit time of the blending materials to be used. The second model is used to obtain the predicted value of the moisture of the finished cut tobacco based on the predicted value of the moisture of the cut tobacco to be pneumatically conveyed.

[0007] Optionally, at normal ambient temperature, the method for establishing the first model includes: obtaining a first finished cut tobacco sample, which is a finished cut tobacco sample produced at normal ambient temperature, obtaining the grade coefficient of the finished cut tobacco based on the moisture values of the blending materials to be used in the first finished cut tobacco sample, the blending weights per unit time of the blending materials to be used, and the moisture value of the cut tobacco to be pneumatically conveyed, and establishing the first model at normal ambient temperature.

[0008] Optionally, at high ambient temperature, the method for establishing the first model includes: obtaining a first finished cut tobacco sample, which is a finished cut tobacco sample produced at normal ambient temperature, obtaining the grade coefficient of the finished cut tobacco based on the moisture values of the blending materials to be used in the first finished cut tobacco sample, the blending weights per unit time of the blending materials to be used, and the moisture value of the cut tobacco to be pneumatically conveyed; obtaining a second finished cut tobacco sample, which is a finished cut tobacco sample produced at high ambient temperature, obtaining the temperature constant at high ambient temperature based on the grade coefficient of the finished cut tobacco and the moisture values of the blending materials to be used in the second finished cut tobacco sample, the blending weights per unit time of the blending materials to be used, and the moisture value of the cut tobacco to be pneumatically conveyed, and establishing the first model at high ambient temperature. [[ID=X]] [[ID=Y]]

[0009] Optionally, at low ambient temperature, the method for establishing the first model includes: obtaining a first finished cut tobacco sample, which is a finished cut tobacco sample produced at normal ambient temperature, obtaining the grade coefficient of the finished cut tobacco based on the moisture values of the blending materials to be used in the first finished cut tobacco sample, the blending weights per unit time of the blending materials to be used, and the moisture value of the cut tobacco to be pneumatically conveyed; obtaining a third finished cut tobacco sample, which is a finished cut tobacco sample produced at low ambient temperature, obtaining the temperature constant at low ambient temperature based on the grade coefficient of the finished cut tobacco and the moisture values of the blending materials to be used in the third finished cut tobacco sample, the blending weights per unit time of the blending materials to be used, and the moisture value of the cut tobacco to be pneumatically conveyed, and establishing the first model at low ambient temperature.

[0010] Optionally, the first model is:

[0011]

[0012] where n represents the number of types of blending materials to be used, and M1, M, M3... M n respectively represent the moisture values of the blending materials to be used, and G1, G2, G3... G nrespectively represent the blending weight values of each material to be blended per unit time, K is the grade coefficient, C is the temperature constant, and M0 represents the predicted moisture content of the cut tobacco to be pneumatically conveyed.

[0013] Optionally, at room temperature ambient temperature, the value of the temperature constant C is 0.

[0014] Optionally, at room temperature ambient temperature, the method for establishing the second model includes: obtaining a first finished cut tobacco sample, which is a finished cut tobacco sample produced at room temperature ambient temperature, obtaining the pneumatic conveying moisture loss at room temperature ambient temperature according to the moisture content of the cut tobacco to be pneumatically conveyed and the moisture content of the finished cut tobacco in the first finished cut tobacco sample, and establishing the second model at room temperature ambient temperature.

[0015] Optionally, at high temperature ambient temperature, the method for establishing the second model includes: obtaining a second finished cut tobacco sample, which is a finished cut tobacco sample produced at high temperature ambient temperature, obtaining the pneumatic conveying moisture loss at high temperature ambient temperature according to the moisture content of the cut tobacco to be pneumatically conveyed and the moisture content of the finished cut tobacco in the second finished cut tobacco sample, and establishing the second model at high temperature ambient temperature.

[0016] Optionally, at low temperature ambient temperature, the method for establishing the second model includes: obtaining a third finished cut tobacco sample, which is a finished cut tobacco sample produced at low temperature ambient temperature, obtaining the pneumatic conveying moisture loss at low temperature ambient temperature according to the moisture content of the cut tobacco to be pneumatically conveyed and the moisture content of the finished cut tobacco in the third finished cut tobacco sample, and establishing the second model at low temperature ambient temperature.

[0017] Optionally, the second model is: M = M0 - M',

[0018] wherein, M' represents the pneumatic conveying moisture loss, and M represents the predicted moisture content of the finished cut tobacco.

[0019] Optionally, the room temperature ambient temperature is 18°C to 28°C.

[0020] Optionally, the high temperature ambient temperature is greater than 28°C.

[0021] Optionally, the low temperature ambient temperature is less than 18°C.

[0022] Optionally, during the establishment of the predicted moisture content model of the finished cut tobacco, the moisture content values of each material to be blended, the moisture content of the cut tobacco to be pneumatically conveyed, and the moisture content of the finished cut tobacco in the finished cut tobacco sample are obtained by the oven method.

[0023] Optionally, the moisture content values of each material to be blended in the finished cut tobacco to be produced are obtained by an infrared moisture meter.

[0024] By establishing a prediction model for the moisture content of the finished cut tobacco, the predicted value of the moisture content of the finished cut tobacco can be obtained based on the moisture content values of the materials to be blended and the blending weights per unit time of the materials to be blended for the finished cut tobacco to be produced during the blending stage. The predicted value is compared with the standard range of the moisture content of the finished cut tobacco, and it can be determined during the blending stage whether the finished cut tobacco to be produced is out of standard. If it is determined that the finished cut tobacco to be produced is out of standard, production adjustments can be made more promptly, which can effectively reduce the output of the finished cut tobacco with moisture content out of standard and alleviate the lag problem of the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Shows the production flow chart of the finished cut tobacco;

[0026] Figure 2 Shows the flow chart of the method for obtaining the predicted value of the moisture content of the finished cut tobacco according to the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiments, this does not mean that the features of this invention are limited to this implementation manner. On the contrary, the purpose of introducing the invention in conjunction with the implementation manner is to cover other alternatives or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, many specific details will be included in the following description. The present invention can also be implemented without these details. In addition, in order to avoid confusing or obscuring the key points of the present invention, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0028] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] The terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0030] To make the purpose, technical solutions and advantages of the present invention clearer, the implementation manners of the present invention will be further described in detail below with reference to the drawings.

[0031] As Figure 1 shown, in this embodiment, the leaf tobacco after winnowing is blended with expanded tobacco and cut stem. The blended material becomes the tobacco to be pneumatically conveyed after flavoring and storing in the wire mesh belt bunker, and the tobacco to be pneumatically conveyed becomes the finished cut tobacco after pneumatic conveying.

[0032] As shown in Figure 2 the present invention provides a method for obtaining the predicted value of the moisture content of finished cut tobacco, including:

[0033] Step S1: Establish a prediction model for the moisture content of finished cut tobacco based on the moisture content values of each blending material in the finished cut tobacco sample, the blending weight values per unit time of each blending material, the moisture content value of the cut tobacco to be pneumatically conveyed, and the moisture content value of the finished cut tobacco;

[0034] Step S2: Obtain the moisture content values of each blending material in the finished cut tobacco to be produced and the blending weight values per unit time of each blending material, substitute them into the prediction model for the moisture content of finished cut tobacco, and obtain the predicted value of the moisture content of the finished cut tobacco to be produced.

[0035] The finished cut tobacco sample in Step S1 and the finished cut tobacco to be produced in Step S2 are of the same brand.

[0036] In practical applications, multiple prediction models for the moisture content of finished cut tobacco of different brands can be established in Step S1, and in Step S2, the prediction model for the moisture content of finished cut tobacco of the same brand as the finished cut tobacco to be produced can be selected for use. Alternatively, in Step S1, only the prediction model for the moisture content of finished cut tobacco of the same brand as the finished cut tobacco to be produced in Step S2 can be established and directly used in Step S2.

[0037] Among them, the finished cut tobacco sample in Step S1 and its moisture content values of each blending material, the blending weight values per unit time of each blending material, the moisture content value of the cut tobacco to be pneumatically conveyed, and the moisture content value of the finished cut tobacco can be obtained from experiments or from previous production.

[0038] In this embodiment, each blending material is cut tobacco, expanded cut tobacco, and cut stem. As shown in Figure 1 the blending weight per unit time of cut tobacco, expanded cut tobacco, and cut stem is the cumulative weight per unit time of the cut tobacco scale, expanded cut tobacco scale, and cut stem scale respectively. The moisture content value of cut tobacco is obtained by sampling and testing at the cut tobacco scale, the moisture content value of expanded cut tobacco is obtained by sampling and testing at the outlet of the expanded cut tobacco storage cabinet, the moisture content value of cut stem is obtained by sampling and testing at the outlet of the cut stem storage cabinet, the moisture content value of the cut tobacco to be pneumatically conveyed is obtained by sampling and testing at the feeding vibrating plate, and the moisture content value of the finished cut tobacco is obtained by sampling and testing at the outlet of the production line. Additionally, the blending weight per unit time of cut tobacco, expanded cut tobacco, and cut stem can also directly take the weight ratio values among the three (for a finished cut tobacco of a certain brand, the weight ratio values among each blending material are known) to simplify the steps.

[0039] The prediction model for the moisture content of finished cut tobacco includes a first model and a second model. The first model is used to obtain the predicted value of the moisture content of the cut tobacco to be pneumatically conveyed based on the moisture content values of each blending material in the finished cut tobacco to be produced and the blending weight values per unit time of each blending material, and the second model is used to obtain the predicted value of the moisture content of the finished cut tobacco based on the predicted value of the moisture content of the cut tobacco to be pneumatically conveyed.

[0040] The blending materials of cut tobacco products with different grades and the ratios between the blending materials are different, and the blending materials and the ratios between the blending materials will affect the moisture of the cut tobacco to be pneumatically conveyed. Therefore, the first model includes the grade coefficient of the cut tobacco product, which is used to characterize the influence of the blending materials of cut tobacco products with different grades and the ratios between the blending materials on the moisture of the cut tobacco to be pneumatically conveyed.

[0041] There is no adjustment system for the environmental temperature of the cigarette making hall where the cut tobacco is pneumatically selected. The environmental temperature of the cigarette making hall changes with the natural temperature, including three environmental temperatures of normal temperature, high temperature, and low temperature. The temperature of the cut tobacco in the cigarette making hall is the same as the environmental temperature of the cigarette making hall, and the temperature of the cut tobacco at the initial stage of blending is the same as the temperature of the cut tobacco in the cigarette making hall. Therefore, the temperature of the cut tobacco at the initial stage of blending is the same as the environmental temperature of the cigarette making hall and also includes three temperatures of normal temperature, high temperature, and low temperature, which will have different effects on the moisture of the blending materials and ultimately have different effects on the moisture of the cut tobacco to be pneumatically conveyed. Therefore, the first model includes a temperature constant, which is used to characterize the influence of the environmental temperature of the cigarette making hall on the moisture of the cut tobacco to be pneumatically conveyed, and there are three establishment methods for the first model. Different establishment methods correspond to different environmental temperatures of the cigarette making hall. In the following establishment methods of the first model, the environmental temperature refers to the environmental temperature of the cigarette making hall:

[0042] Under the environmental temperature of normal temperature, the establishment method of the first model includes: obtaining a first cut tobacco product sample, which is a cut tobacco product sample produced under the environmental temperature of normal temperature, obtaining the grade coefficient of the cut tobacco product according to the moisture values of each blending material to be blended, the blending weight value of each blending material per unit time, and the moisture value of the cut tobacco to be pneumatically conveyed of the first cut tobacco product sample, and establishing the first model under the environmental temperature of normal temperature.

[0043] Under the environmental temperature of high temperature, the establishment method of the first model includes: obtaining a first cut tobacco product sample, which is a cut tobacco product sample produced under the environmental temperature of normal temperature, obtaining the grade coefficient of the cut tobacco product according to the moisture values of each blending material to be blended, the blending weight value of each blending material per unit time, and the moisture value of the cut tobacco to be pneumatically conveyed of the first cut tobacco product sample; obtaining a second cut tobacco product sample, which is a cut tobacco product sample produced under the environmental temperature of high temperature, obtaining the temperature constant under the environmental temperature of high temperature according to the grade coefficient of the cut tobacco product and the moisture values of each blending material to be blended, the blending weight value of each blending material per unit time, and the moisture value of the cut tobacco to be pneumatically conveyed of the second cut tobacco product sample, and establishing the first model under the environmental temperature of high temperature.

[0044] At low ambient temperature, the method for establishing the first model includes: obtaining a first finished cut tobacco sample, which is a finished cut tobacco sample produced at normal ambient temperature, obtaining the brand coefficient of the finished cut tobacco according to the moisture values of each blending material to be blended, the blending weight values per unit time of each blending material to be blended, and the moisture value of the cut tobacco to be pneumatically conveyed; obtaining a third finished cut tobacco sample, which is a finished cut tobacco sample produced at low ambient temperature, obtaining the temperature constant at low ambient temperature according to the brand coefficient of the finished cut tobacco and the moisture values of each blending material to be blended, the blending weight values per unit time of each blending material to be blended, and the moisture value of the cut tobacco to be pneumatically conveyed, and establishing the first model at low ambient temperature.

[0045] The first model is:

[0046]

[0047] Wherein, n represents the number of types of blending materials to be blended, M1, M2, M3... M n respectively represent the moisture values of each blending material to be blended, G1, G2, G3... G n respectively represent the blending weight values per unit time of each blending material to be blended, K is the brand coefficient, C is the temperature constant, and M0 represents the predicted moisture value of the cut tobacco to be pneumatically conveyed.

[0048] During the establishment process of the first model, M1, M2, M3... M n are respectively taken as the moisture values of each blending material to be blended of the finished cut tobacco sample, G1, G2, G3... G n are respectively taken as the blending weight values per unit time of each blending material to be blended of the finished cut tobacco sample, and M0 is taken as the moisture value of the cut tobacco to be pneumatically conveyed of the finished cut tobacco sample to determine the brand coefficient K and the temperature constant C.

[0049] In this embodiment, the first model is:

[0050]

[0051] Wherein, 3 represents the number of types of blending materials to be blended, M1, M2, and M3 respectively represent the moisture values of cut tobacco leaves, expanded cut tobacco, and cut tobacco stems, G1, G2, and G3 respectively represent the blending weight values per unit time of cut tobacco leaves, expanded cut tobacco, and cut tobacco stems, K is the brand coefficient, C is the temperature constant, and M0 represents the predicted moisture value of the cut tobacco to be pneumatically conveyed.

[0052] At normal ambient temperature, the value of the temperature constant C is 0.

[0053] During the pneumatic conveying process, moisture loss of cut tobacco occurs, and the amount of moisture loss during pneumatic conveying is affected by the ambient temperature of pneumatic conveying. The ambient temperature of pneumatic conveying is affected by nature and changes with the temperature of nature. It includes three ambient temperatures for pneumatic conveying: normal temperature, high temperature, and low temperature. These three ambient temperatures for pneumatic conveying will have different effects on the amount of moisture loss during pneumatic conveying, and thus different effects on the moisture content of the finished cut tobacco. Therefore, there are three methods for establishing the second model, and different ambient temperatures for pneumatic conveying correspond to different establishment methods. In the following methods for establishing the second model, the ambient temperature refers to the ambient temperature of pneumatic conveying:

[0054] Under the ambient temperature of normal temperature, the method for establishing the second model includes: obtaining a first sample of finished cut tobacco, where the first sample of finished cut tobacco is a sample of finished cut tobacco produced under the ambient temperature of normal temperature, obtaining the moisture loss during pneumatic conveying under the ambient temperature of normal temperature based on the moisture content of the cut tobacco to be pneumatically conveyed and the moisture content of the finished cut tobacco in the first sample of finished cut tobacco, and establishing the second model under the ambient temperature of normal temperature.

[0055] Under the ambient temperature of high temperature, the method for establishing the second model includes: obtaining a second sample of finished cut tobacco, where the second sample of finished cut tobacco is a sample of finished cut tobacco produced under the ambient temperature of high temperature, obtaining the moisture loss during pneumatic conveying under the ambient temperature of high temperature based on the moisture content of the cut tobacco to be pneumatically conveyed and the moisture content of the finished cut tobacco in the second sample of finished cut tobacco, and establishing the second model under the ambient temperature of high temperature.

[0056] Under the ambient temperature of low temperature, the method for establishing the second model includes: obtaining a third sample of finished cut tobacco, where the third sample of finished cut tobacco is a sample of finished cut tobacco produced under the ambient temperature of low temperature, obtaining the moisture loss during pneumatic conveying under the ambient temperature of low temperature based on the moisture content of the cut tobacco to be pneumatically conveyed and the moisture content of the finished cut tobacco in the third sample of finished cut tobacco, and establishing the second model under the ambient temperature of low temperature.

[0057] The second model is: M = M0 - M',

[0058] where M' represents the moisture loss during pneumatic conveying, and M represents the predicted moisture content of the finished cut tobacco.

[0059] During the establishment process of the second model, take M0 as the moisture content of the cut tobacco to be pneumatically conveyed in the sample of finished cut tobacco, and take M as the moisture content of the finished cut tobacco in the sample of finished cut tobacco to determine the moisture loss M'.

[0060] The ambient temperature of normal temperature is 18°C to 28°C.

[0061] The ambient temperature of high temperature is greater than 28°C.

[0062] The ambient temperature of low temperature is less than 18°C.

[0063] In step S1, the moisture content values of each blending material to be added, the moisture content of the cut tobacco to be pneumatically conveyed, and the moisture content of the finished cut tobacco in the sample of finished cut tobacco are obtained by the oven method.

[0064] In step S2, the moisture values of each blending material of the finished cut tobacco to be produced are obtained by an infrared moisture meter.

[0065] In practical applications, it is necessary to regularly compare the moisture measurement value of the infrared moisture meter with the moisture measurement value of the oven method, and adjust the infrared moisture meter according to the moisture measurement value of the oven method, so that the moisture measurement value of the infrared moisture meter is the same as the moisture measurement value of the oven method, making the measurement of the moisture values of each blending material of the finished cut tobacco to be produced by the infrared moisture meter fast and accurate.

[0066] By establishing a moisture prediction model for the finished cut tobacco, in the blending stage, the moisture prediction value of the finished cut tobacco can be obtained according to the moisture values of each blending material of the finished cut tobacco to be produced and the blending weight value of each blending material per unit time. The prediction value is compared with the standard range of the moisture of the finished cut tobacco. In the blending stage, it can be judged whether the finished cut tobacco to be produced is out of standard. If it is judged that the finished cut tobacco to be produced is out of standard, production adjustment can be carried out more timely, which can effectively reduce the output of the finished cut tobacco with moisture out of standard and alleviate the lag problem of the existing technology.

[0067] Although the present invention has been illustrated and described by referring to some preferred embodiments of the present invention, those of ordinary skill in the art should understand that the above content is a further detailed description of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. Those skilled in the art can make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A method for obtaining a predicted value of the moisture content of finished cut tobacco, characterized in that, Including: Establish a moisture prediction model for the finished cut tobacco based on the moisture values of each blending material to be blended in the finished cut tobacco sample, the blending weight value per unit time of each blending material to be blended, the moisture value of the cut tobacco to be pneumatically conveyed, and the moisture value of the finished cut tobacco. The moisture prediction model for the finished cut tobacco includes a first model and a second model. The first model is used to obtain a predicted moisture value of the cut tobacco to be pneumatically conveyed based on the moisture values of each blending material to be blended in the finished cut tobacco to be produced and the blending weight value per unit time of each blending material to be blended. The second model is used to obtain the predicted moisture value of the finished cut tobacco based on the predicted moisture value of the cut tobacco to be pneumatically conveyed. Obtain the moisture values of each blending material to be blended in the finished cut tobacco to be produced and the blending weight value per unit time of each blending material to be blended, substitute them into the moisture prediction model for the finished cut tobacco, and obtain the predicted moisture value of the finished cut tobacco. Among them, the first model is: Among them, n represents the number of types of materials to be blended, M1, M2, M3... M n respectively represent the moisture values of each material to be blended, G1, G2, G3... G n respectively represent the blending weight values per unit time of each material to be blended, K is the grade coefficient, which is used to characterize the influence of the blending materials of finished cut tobacco of different grades and the proportion between each blending material on the moisture of the cut tobacco to be pneumatically conveyed, C is the temperature constant, and M0 represents the predicted moisture value of the cut tobacco to be pneumatically conveyed; The second model is: M = M0 - M', where M' represents the moisture loss during pneumatic conveying, and M represents the predicted moisture value of the finished cut tobacco.

2. The method for obtaining the predicted value of the moisture content of the finished cut tobacco according to claim 1, characterized in that, Under the normal temperature environment temperature, the normal temperature environment temperature is 18°C to 28°C. The establishment method of the first model includes: Obtain a first finished cut tobacco sample, which is the finished cut tobacco sample produced under the normal temperature environment temperature. Obtain the brand coefficient of the finished cut tobacco based on the moisture values of each blending material to be blended in the first finished cut tobacco sample, the blending weight value per unit time of each blending material to be blended, and the moisture value of the cut tobacco to be pneumatically conveyed, and establish the first model under the normal temperature environment temperature.

3. The method for obtaining the predicted value of the moisture content of the finished cut tobacco according to claim 1, wherein, Under the high temperature environment temperature, the high temperature environment temperature is greater than 28°C. The establishment method of the first model includes: Obtain a first finished cut tobacco sample, which is the finished cut tobacco sample produced under the normal temperature environment temperature. Obtain the brand coefficient of the finished cut tobacco based on the moisture values of each blending material to be blended in the first finished cut tobacco sample, the blending weight value per unit time of each blending material to be blended, and the moisture value of the cut tobacco to be pneumatically conveyed. Obtain a second finished cut tobacco sample, which is the finished cut tobacco sample produced under the high temperature environment temperature. Obtain the temperature constant under the high temperature environment temperature based on the brand coefficient of the finished cut tobacco and the moisture values of each blending material to be blended in the second finished cut tobacco sample, the blending weight value per unit time of each blending material to be blended, and the moisture value of the cut tobacco to be pneumatically conveyed, and establish the first model under the high temperature environment temperature.

4. The method for obtaining the predicted value of the moisture content of the finished cut tobacco according to claim 1, wherein Under the low temperature environment temperature, the low temperature environment temperature is less than 18°C. The establishment method of the first model includes: Obtain a first finished cut tobacco sample, which is the finished cut tobacco sample produced under the normal temperature environment temperature. Obtain the brand coefficient of the finished cut tobacco based on the moisture values of each blending material to be blended in the first finished cut tobacco sample, the blending weight value per unit time of each blending material to be blended, and the moisture value of the cut tobacco to be pneumatically conveyed. Obtain a third finished cut tobacco sample, where the third finished cut tobacco sample is the finished cut tobacco sample produced under a low-temperature ambient temperature. Obtain the temperature constant under the low-temperature ambient temperature according to the brand coefficient of the finished cut tobacco, the moisture values of each blending material to be blended in the third finished cut tobacco sample, the blending weight value of each blending material per unit time, and the moisture value of the cut tobacco to be pneumatically conveyed, and establish the first model under the low-temperature ambient temperature.

5. The method for obtaining the predicted value of the moisture content of the finished cut tobacco according to any one of claims 1-4, characterized in that, Under the normal-temperature ambient temperature, the value of the temperature constant C is 0, and the normal-temperature ambient temperature is 18°C to 28°C.

6. The method for obtaining the predicted value of the moisture content of the finished cut tobacco according to claim 1, wherein, Under the normal-temperature ambient temperature, where the normal-temperature ambient temperature is 18°C to 28°C, the method for establishing the second model includes: Obtain a first finished cut tobacco sample, where the first finished cut tobacco sample is the finished cut tobacco sample produced under the normal-temperature ambient temperature. Obtain the pneumatic conveying moisture loss under the normal-temperature ambient temperature according to the moisture value of the cut tobacco to be pneumatically conveyed and the moisture value of the finished cut tobacco in the first finished cut tobacco sample, and establish the second model under the normal-temperature ambient temperature.

7. The method for obtaining the predicted value of the moisture content of the finished cut tobacco according to claim 1, wherein, Under the high-temperature ambient temperature, where the high-temperature ambient temperature is greater than 28°C, the method for establishing the second model includes: Obtain a second finished cut tobacco sample, where the second finished cut tobacco sample is the finished cut tobacco sample produced under the high-temperature ambient temperature. Obtain the pneumatic conveying moisture loss under the high-temperature ambient temperature according to the moisture value of the cut tobacco to be pneumatically conveyed and the moisture value of the finished cut tobacco in the second finished cut tobacco sample, and establish the second model under the high-temperature ambient temperature.

8. The method for obtaining the predicted value of the moisture content of the finished cut tobacco according to claim 1, characterized in that, Under the low-temperature ambient temperature, where the low-temperature ambient temperature is less than 18°C, the method for establishing the second model includes: Obtain a third finished cut tobacco sample, where the third finished cut tobacco sample is the finished cut tobacco sample produced under the low-temperature ambient temperature. Obtain the pneumatic conveying moisture loss under the low-temperature ambient temperature according to the moisture value of the cut tobacco to be pneumatically conveyed and the moisture value of the finished cut tobacco in the third finished cut tobacco sample, and establish the second model under the low-temperature ambient temperature.

9. The method for obtaining the predicted value of the moisture content of the finished cut tobacco according to any one of claims 1, 2, 3, 4, 6, 7, and 8, characterized in that, During the establishment process of the finished cut tobacco moisture prediction model, obtain the moisture values of each blending material to be blended, the moisture value of the cut tobacco to be pneumatically conveyed, and the moisture value of the finished cut tobacco in the finished cut tobacco sample by the oven method.

10. The method for obtaining the predicted value of the moisture content of the finished cut tobacco according to claim 1, characterized in that, Obtain the moisture values of each blending material to be blended in the finished cut tobacco to be produced by an infrared moisture meter.

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