Homogenizing stacking and regulating method for curing primary flue-cured tobacco
By carefully managing and scientifically matching primary flue-cured tobacco, the problem that traditional methods cannot accurately control nicotine content is solved, and the reduction of the nicotine coefficient of variation and the improvement of cigarette product quality is achieved.
Patent Information
- Application Number
- CN202510097075.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-05-09
AI Technical Summary
Traditional primary flue-cured tobacco stacking and regulation methods cannot accurately control the fluctuations in nicotine content, resulting in the inability to move forward in homogenization processing, which affects the industry's process of promoting homogenization processing in the entire business chain.
By checking the identity and quantity information of tobacco leaves, unloading and stacking the tobacco piles according to the detected nicotine level, and establishing a personalized tobacco pile maintenance plan based on the identity information of tobacco leaves, calculating the ratio of tobacco leaves of different nicotine levels to achieve homogeneous out-of-warehouse allocation.
It effectively reduces the coefficient of nicotine variation, improves the inherent quality of cigarette products, and realizes refined management and scientific proportion of primary flue-cured tobacco products.
Smart Images
Figure CN119949555A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of tobacco storage quality control, and in particular to a homogenization stacking and control method for curing primary flue-cured tobacco. Background Art
[0002] For the tobacco industry, the current homogenization process advocates front-end control and back-end compensation. With the continuous advancement of the industry's homogenization process, the homogenization process has moved from the silk making and packaging end to the leaf threshing and re-drying end. However, due to the large fluctuations in the coefficient of variation of incoming nicotine, the homogenization process of the entire business chain has not yet been realized. In the field of first-cured tobacco collection and storage before leaf threshing and re-drying, the traditional stacking and regulation methods of first-cured tobacco often rely on manual experience and simple classification, and cannot accurately control the fluctuation of nicotine content, resulting in the inability to move forward homogenization processing, which has affected the industry's progress in promoting homogenization processing of the entire business chain. Summary of the invention
[0003] In view of the above-mentioned defects or shortcomings in the prior art, the present invention provides a homogenized stacking and regulation method for curing first-cured tobacco, which can achieve refined management and scientific proportioning of first-cured tobacco, aiming to reduce the nicotine variation coefficient and improve the intrinsic quality of cigarette products.
[0004] One aspect of the present invention provides a homogenized stacking and control method for curing primary flue-cured tobacco, comprising: verifying the identity information and quantity information of tobacco leaves according to data in a platform database; The tobacco stacks are unloaded and stacked according to the nicotine grades obtained through testing. Based on the identity information of the tobacco leaves, a personalized tobacco stack maintenance plan is established by regularly testing the changes in the nicotine indicators of the tobacco stacks. The target nicotine content of the blended tobacco leaves is determined based on the redrying feeding plan, leaf threshing and redrying formula, inventory level and product processing requirements. Based on the target nicotine content, the proportion of tobacco leaves of different nicotine grades is calculated. The tobacco leaves are homogenized and allocated according to the proportions.
[0005] Furthermore, the step of unloading and stacking the cigarette stacks according to the nicotine level obtained by the detection includes: detecting the nicotine content of the cigarette packages on the cigarette truck by using a handheld near-infrared spectrometer, unloading the cigarette packages to cargo locations with different nicotine content confidence intervals according to the different nicotine contents, and performing stacking operations.
[0006] Further, the nicotine lower limit LSL and the nicotine upper limit USL of the nicotine content confidence interval are calculated according to the following formula: ; ; Among them, Mean represents the mean value of nicotine sampling of 30% tobacco leaf samples from the tobacco vehicle. It represents the standard deviation of nicotine sampling of 30% of the samples taken from the tobacco vehicle.
[0007] Furthermore, the step of unloading and stacking the cigarette stacks according to the nicotine grade also includes: when high-quality cigarettes are delivered, they are stacked first according to the nicotine content, and when medium and low-quality cigarettes are delivered, they are stacked only after the stacking of the high-quality cigarettes is completed.
[0008] Furthermore, it also includes: obtaining a correction factor based on the change of nicotine content in the three years before the tobacco leaf purchasing season , using the correction factor Correct the lower nicotine limit LSL and upper nicotine limit USL of the confidence interval of nicotine content in each cigarette pile.
[0009] Furthermore, in the early stage of the tobacco leaf purchasing season, the nicotine lower limit LSL and the nicotine upper limit USL of the nicotine content confidence interval are calculated as follows: ; ; Among them, Mean represents the mean value of nicotine sampling of 30% tobacco leaf samples from the tobacco vehicle. It represents the standard deviation of nicotine sampling of 30% of the samples taken from the cigarette car. is the correction factor.
[0010] Furthermore, in the late tobacco leaf purchasing season, the nicotine lower limit LSL and the nicotine upper limit USL of the nicotine content confidence interval are calculated as follows: ; ; Among them, Mean represents the mean value of nicotine sampling of 30% tobacco leaf samples from the tobacco vehicle. It represents the standard deviation of nicotine sampling of 30% of the samples taken from the cigarette car. is the correction factor.
[0011] Furthermore, it also includes: setting a QR code for each cigarette stack, wherein the QR code records the identity information and nicotine information of the first-cured tobacco stored in the cigarette stack.
[0012] Furthermore, the step of establishing a personalized maintenance plan for tobacco stacks by regularly detecting changes in nicotine indicators of tobacco stacks based on the identity information of tobacco leaves includes: for high-nicotine tobacco stacks, reducing the area exposed to the sun by adjusting the stacking shape to avoid a further increase in the nicotine value; for low-nicotine tobacco stacks, increasing the area exposed to the sun by adjusting the stacking shape to avoid a further decrease in the nicotine value; for medium-nicotine tobacco stacks, monitoring the nicotine value of the tobacco stacks, and when the nicotine value reaches a high nicotine value or a low nicotine value, performing corresponding operations according to the maintenance plan for the high-nicotine tobacco stack or the low-nicotine tobacco stack.
[0013] Furthermore, according to the target nicotine content, calculating the ratio of tobacco leaves with different nicotine grades includes: optimizing the ratio of tobacco leaves with different nicotine grades through a machine learning model according to the soil, light, rainfall and wind conditions of the tobacco producing area.
[0014] The present invention provides a homogenized stacking and control method for curing first-cured tobacco, which realizes the refined management and scientific proportioning of first-cured tobacco, effectively reduces the coefficient of variation of nicotine by accurately monitoring the nicotine content and establishing personalized curing countermeasures, and improves the intrinsic quality of cigarette products. The method of the present invention is simple to operate and has significant effects, providing new technical support for the development of the tobacco industry. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 It is a flow chart of a homogenized stacking and control method for curing primary flue-cured tobacco provided in one embodiment of the present application. DETAILED DESCRIPTION
[0016] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0017] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention are also intended to include plural forms, unless the context clearly indicates other meanings.
[0018] It should be understood that although the terms first, second, third, etc. may be used to describe the acquisition modules in the embodiments of the present invention, the acquisition modules should not be limited to these terms. These terms are only used to distinguish the acquisition modules from each other.
[0019] The word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.
[0020] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present invention are described at the angles shown in the drawings and should not be understood as limiting the embodiments of the present invention. In addition, in the context, it should also be understood that when it is mentioned that an element is formed "on" or "under" another element, it can not only be formed directly "on" or "under" another element, but also be formed "on" or "under" another element indirectly through an intermediate element.
[0021] One embodiment of the present application provides a homogenization stacking and control method for curing primary flue-cured tobacco. Figure 1 , the method comprises the following steps:
[0022] Step S101, verifying the identity information and quantity information of the tobacco leaves according to the data in the platform database.
[0023] Specifically, based on the data from the national unified tobacco production and operation platform, identity information such as the variety and grade of tobacco leaves and quantity information such as the number of cigarette packages and the number of tobacco trucks are verified. In order to meet the requirements of the leaf beating and re-roasting group formula, the tobacco leaves that are given priority for beating and re-roasting are placed in the warehouse area close to the warehouse for shipment, to facilitate rapid deployment of the beating and re-roasting leaves.
[0024] Step S102, unloading and stacking the cigarette stacks according to the detected nicotine levels.
[0025] In this step, on the premise that each cigarette stack has a nicotine level, a handheld near-infrared spectrometer is used to detect each cigarette bag on the cigarette truck, and the cigarette truck is instructed to stack them according to high, medium and low nicotine levels, ensuring that each cigarette truck is unloaded and stacked according to the cargo position of the high, medium and low nicotine confidence interval when unloading and stacking.
[0026] Specifically, the cigarette packs of each cigarette car are sampled, and the nicotine confidence interval [nicotine lower limit LSL, nicotine upper limit USL] of the cigarette stack is obtained according to the sampling results of the nicotine value of the cigarette packs. The specific calculation formula is as follows: ; ; Among them, Mean represents the mean value of nicotine sampling of 30% tobacco leaf samples from the tobacco vehicle. It represents the standard deviation of nicotine sampling of 30% of the samples taken from the tobacco vehicle.
[0027] Furthermore, since the incoming tobacco trucks involve different tobacco stations and the tobacco leaves collected by each tobacco station are affected by the differences in the quality of the incoming tobacco leaves, in order to ensure that each tobacco stack meets the requirements of the leaf threshing and re-roasting formula while not affecting the overall nicotine balance of the stacking due to the differences in the incoming tobacco leaves, when stacking, consideration is given to stacking the incoming high-quality tobacco according to the nicotine value, and stacking the incoming medium and low-quality tobacco should be carried out after the stacking of the high-quality tobacco is completed.
[0028] Furthermore, the purchase of top-grade / upper tobacco, medium-grade / middle tobacco, and inferior / lower tobacco may occur in the early, middle, and late stages of the purchase season. Due to different purchase times and different picking locations, the nicotine content fluctuates. Therefore, in the calculation process of the nicotine confidence interval for each tobacco pile, a correction factor β is added to the early, middle, and late stages of the purchase season. This correction factor uses machine learning to output the correction of the high, medium, and low confidence intervals of nicotine based on the changes in nicotine values in the three years before the purchase season. A positive correction factor β indicates that the nicotine content of tobacco leaves has been on an upward trend in the past three years, and a negative correction factor β indicates that the nicotine content of tobacco leaves has been on a downward trend in the past three years.
[0029] Specifically, in the early stage of the acquisition season, the confidence interval is shifted to the left: ; ; Among them, Mean represents the mean value of nicotine sampling of 30% tobacco leaf samples from the tobacco vehicle. It represents the standard deviation of nicotine sampling of 30% of the samples taken from the cigarette car. is the correction factor.
[0030] In the middle of the acquisition season, keep the confidence interval unchanged: ; ; Among them, Mean represents the mean value of nicotine sampling of 30% tobacco leaf samples from the tobacco vehicle. It represents the standard deviation of nicotine sampling of 30% of the samples taken from the tobacco vehicle.
[0031] Later in the acquisition season, the confidence interval shifts rightward: ; ; Among them, Mean represents the mean value of nicotine sampling of 30% tobacco leaf samples from the tobacco vehicle. It represents the standard deviation of nicotine sampling of 30% of the samples taken from the cigarette car. is the correction factor.
[0032] The above-mentioned left or right shift of the confidence interval at different procurement times can better meet the changes in incoming tobacco leaves during the procurement period.
[0033] Furthermore, a QR code is set for each tobacco stack, which records the identity information of the variety, grade, origin, year, etc. of the freshly cured tobacco stored in the tobacco stack, and also stores the nicotine information of the tobacco stack. The information recorded by the QR code can be used as a starting point for personalized maintenance of tobacco leaves in the warehouse to achieve homogenization regulation.
[0034] Step S103, establishing a personalized maintenance plan for tobacco piles by regularly detecting changes in nicotine indicators of tobacco piles based on the identity information of tobacco leaves.
[0035] Specifically, according to the characteristics of incoming tobacco leaves, such as variety, grade, origin, and part, by regularly testing the changes in nicotine indicators of tobacco piles, personalized maintenance countermeasures are established, as follows: For high-nicotine cigarette stacks, the shape of the stack can be adjusted to reduce the area exposed to the sun, so as to avoid further increase in nicotine content; For low-nicotine cigarette stacks, the shape of the stacking can be adjusted to increase the area exposed to the sun, so as to avoid further reduction of the nicotine value; For medium-nicotine cigarette stacks, monitor the nicotine value of the cigarette stack. When the nicotine value reaches a high-nicotine value or a low-nicotine value, perform corresponding operations according to the maintenance plan for high-nicotine cigarette stacks or low-nicotine cigarette stacks.
[0036] Step S104, determining the target nicotine content of the blended tobacco leaves according to the redrying feeding plan, leaf threshing and redrying formula, inventory and product processing requirements, and calculating the proportion of tobacco leaves with different nicotine grades according to the target nicotine content.
[0037] Specifically, according to the redrying feeding plan, leaf threshing and redrying formula, inventory, etc., the target nicotine content of the blend is determined by homogenization ratio according to the actual product processing needs of the industrial customers corresponding to the tobacco leaf enterprises, and then the ratio of high, medium and low nicotine is calculated. Among them, the calculation of the ratio is mainly based on laboratory-level testing, and the corresponding gradient test is carried out to finally obtain an effective ratio. The different ratios of tobacco leaves of different varieties are mainly based on Hongda, K326, NC series (for example: NC102, NC297), and cloud series (for example: cloud 87, cloud 97). Furthermore, the ratio of tobacco leaves with different nicotine contents is not a constant coefficient, because the tobacco leaves themselves are affected by soil, light, rainfall, wind and other factors. Even tobacco leaves of the same variety, origin and grade will fluctuate in composition every year. Therefore, on the basis of the original ratio, the ratio coefficient is continuously optimized by machine learning every year according to the incoming materials to achieve an effective ratio of the target nicotine content.
[0038] Step S105, homogenize and distribute the tobacco leaves according to the tobacco leaf blending ratio.
[0039] Specifically, after the ratio of high, medium and low nicotine is determined, the tobacco leaves will be homogenized and allocated according to the ratio, and the storage period of each grade of tobacco leaves will be comprehensively controlled. The medium and low-grade tobacco will be roasted in the early and late stages of redrying, and the high-grade tobacco will be roasted in the middle stage of redrying.
[0040] The method of this embodiment realizes the refined management and scientific proportioning of the first-cured tobacco, and effectively reduces the coefficient of variation of nicotine by accurately monitoring the nicotine content and establishing personalized maintenance countermeasures, thereby improving the intrinsic quality of cigarette products. The method is easy to operate and has significant effects, and provides new technical support for the development of the tobacco industry.
[0041] The above description is only a preferred embodiment of the present invention. Those skilled in the art should understand that the scope of disclosure involved in the present invention is not limited to the technical solution formed by a specific combination of the above technical features, but also should cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosed concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present invention (but not limited to) to form a technical solution.
Claims
1. A homogenization stacking and control method for curing primary flue-cured tobacco, characterized in that include: Verify the identity and quantity information of tobacco leaves according to the data in the platform database; Unload and stack the cigarette stacks according to the nicotine levels detected; According to the identity information of tobacco leaves, a personalized maintenance plan for tobacco piles is established by regularly testing the changes in nicotine indicators of tobacco piles; Determine the target nicotine content of the blended tobacco leaves according to the redrying feeding plan, leaf threshing and redrying formula, inventory and product processing requirements, and calculate the proportion of tobacco leaves with different nicotine grades according to the target nicotine content; Homogenized tobacco leaves are dispatched from warehouse according to the proportion of tobacco leaves.
2. The homogenization stacking and control method for curing primary flue-cured tobacco according to claim 1, characterized in that: The step of unloading and stacking the cigarette stacks according to the nicotine level detected comprises: The nicotine content of cigarette packs on the cigarette truck is tested by using a handheld near-infrared spectrometer. According to the different nicotine content, the cigarette packs are unloaded to cargo locations with different nicotine content confidence intervals and stacked.
3. The homogenization stacking and control method for curing primary flue-cured tobacco according to claim 2, characterized in that: The nicotine lower limit LSL and the nicotine upper limit USL of the nicotine content confidence interval are calculated according to the following formula: ； ； Among them, Mean represents the mean value of nicotine sampling of 30% tobacco leaf samples from the tobacco vehicle. It represents the standard deviation of nicotine sampling of 30% of the samples taken from the tobacco vehicle.
4. The homogenization stacking and control method for curing primary flue-cured tobacco according to claim 2, characterized in that: The step of unloading and stacking the cigarette stacks according to the nicotine grade also includes stacking first according to the nicotine content when high-quality cigarettes are delivered, and stacking the medium and low-quality cigarettes after the stacking of the high-quality cigarettes is completed.
5. The homogenization stacking and control method for curing primary flue-cured tobacco according to claim 3, characterized in that: Also includes: The correction factor is obtained based on the changes in nicotine content in the three years before the tobacco leaf purchasing season. , using the correction factor Correct the lower nicotine limit LSL and upper nicotine limit USL of the confidence interval of nicotine content in each cigarette pile.
6. The homogenization stacking and control method for curing primary flue-cured tobacco according to claim 5, characterized in that: In the early stage of tobacco leaf purchasing season, the lower limit LSL and upper limit USL of the confidence interval of nicotine content are calculated as follows: ； ； Among them, Mean represents the mean value of nicotine sampling of 30% tobacco leaf samples from the tobacco vehicle. It represents the standard deviation of nicotine sampling of 30% of the samples taken from the cigarette car. is the correction factor.
7. The homogenization stacking and control method for curing primary flue-cured tobacco according to claim 5, characterized in that: In the late tobacco leaf purchasing season, the nicotine lower limit LSL and nicotine upper limit USL of the nicotine content confidence interval are calculated as follows: ； ； Among them, Mean represents the mean value of nicotine sampling of 30% tobacco leaf samples from the tobacco vehicle. It represents the standard deviation of nicotine sampling of 30% of the samples taken from the cigarette car. is the correction factor.
8. A homogenization stacking and control method for curing primary flue-cured tobacco according to any one of claims 2 to 7, characterized in that: Also includes: A two-dimensional code is set for each cigarette stack, and the two-dimensional code records the identity information and nicotine information of the first-cured tobacco stored in the cigarette stack.
9. The homogenization stacking and control method for curing primary flue-cured tobacco according to claim 1, characterized in that: The steps of establishing a personalized maintenance plan for tobacco stacks by regularly detecting changes in nicotine indicators of tobacco stacks based on the identity information of tobacco leaves include: For high-nicotine cigarette stacks, the shape of the stack can be adjusted to reduce the area exposed to the sun, so as to avoid further increase in nicotine content; For low-nicotine cigarette stacks, the shape of the stacking can be adjusted to increase the area exposed to the sun, so as to avoid further reduction of the nicotine value; For medium-nicotine cigarette stacks, monitor the nicotine value of the cigarette stack. When the nicotine value reaches a high-nicotine value or a low-nicotine value, perform corresponding operations according to the maintenance plan for high-nicotine cigarette stacks or low-nicotine cigarette stacks.
10. The homogenization stacking and control method for curing primary flue-cured tobacco according to claim 1, characterized in that: According to the target nicotine content, the proportion of tobacco leaves with different nicotine grades is calculated including: Based on the soil, light, rainfall and wind conditions of the tobacco producing areas, the ratio of tobacco leaves with different nicotine levels is optimized through machine learning models.