Novel threshing and redrying process based on threshing and drying separation

Abstract

The invention particularly discloses a novel threshing and redrying process based on threshing and redrying separation. The novel threshing and redrying process comprises the steps that tobacco leaf raw materials are subjected to pretreatment of vacuum moisture regaining, slitting and nicotine high, medium and low matched feeding and leaf and stem separation; matching parameters are designed according to the characteristics of main-grade tobacco leaf raw materials so as to ensure that tobacco strips with different qualities are processed into tobacco strips with uniform sizes and stable quality in the leaf-stem separation stage, and the characteristics of the tobacco leaf raw materials comprise the mechanical characteristics of tobacco leaves; large pieces, middle pieces, small pieces, fragments and fragments are separated from tobacco strips of different sizes, and the tobacco strips are divided into one class of large pieces, middle pieces and small pieces, one class of fragments and fragments or one class of large pieces, middle pieces, small pieces and fragments and fragments according to the inherent quality conditions of different sizes or the positioning and demand quantity of cigarette products; and the threshed tobacco strips are classified and stored according to the quality classification or are independently redried and packaged so as to meet the individual requirements of different cigarette products. The stability of the tobacco leaf formula is improved, and tobacco leaf resources are flexibly blended.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco processing, and more specifically to a novel leaf threshing and re-roasting process based on threshing and roasting separation. Background Art

[0002] As an agricultural product, the quality of tobacco leaves is deeply affected by natural and human factors such as climate, soil, and planting technology, which leads to significant fluctuations in the quality of tobacco leaves between different years. This instability poses a challenge to the overall quality of tobacco leaves. In order to deal with this problem, tobacco leaf module formula leaf beating technology came into being. It has alleviated the troubles caused by annual quality fluctuations to a certain extent and improved the stability of tobacco leaf formulas. However, in the face of special years, the quality fluctuations of tobacco leaves are particularly severe. Simply relying on tobacco resources from the same production area can no longer meet the needs of stable formula module quality. In addition, due to policy restrictions, tobacco leaves from different production areas face many obstacles in cross-regional formula combination, which further aggravates the difficulty of stabilizing tobacco leaf quality.

[0003] Therefore, it is urgent to explore and implement an innovative method to effectively solve the problem of stable quality of tobacco leaves between years. This method should be able to cross the boundaries of production areas and years, flexibly allocate tobacco resources, and fully consider the characteristics and advantages of tobacco leaves in each production area, ensure the high-quality supply of tobacco raw materials, and provide solid support for the sustainable development of the company's brand. Summary of the invention

[0004] The present invention provides a novel leaf threshing and re-roasting process based on threshing and roasting separation, which solves the problem of annual quality fluctuation of existing tobacco leaves, which easily leads to poor stability of tobacco leaf formula, can improve the stability of tobacco leaf formula, can flexibly allocate tobacco leaf resources according to the unique advantages of tobacco leaves in producing areas, effectively solves the problem of annual and regional quality fluctuation of tobacco leaves, and provides a solid guarantee for the stable formula of cigarette products.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A new leaf threshing and redrying process based on threshing and roasting separation, comprising:

[0007] The tobacco raw materials are subjected to vacuum conditioning, cutting, pretreatment of nicotine, high, medium and low mixing, and leaf stem separation;

[0008] Designing supporting parameters according to the characteristics of the main grade tobacco raw materials to ensure that tobacco leaves of different qualities are processed into tobacco leaves of uniform size and stable quality during the leaf stem separation stage, wherein the tobacco raw material characteristics include the mechanical characteristics of tobacco leaves;

[0009] Separate tobacco sheets of different sizes into large sheets, medium sheets, small sheets, fragments and crushed powder, and classify them into large sheets, medium sheets and small sheets as one category, fragments and crushed powder as another category or large sheets, medium sheets as one category, small sheets as one category, fragments and crushed powder as another category according to the internal quality of different sizes or the positioning and demand of cigarette products;

[0010] The threshed tobacco leaves are classified and stored according to quality or re-roasted and packaged individually to meet the personalized needs of different cigarette products.

[0011] Preferably, it also includes:

[0012] The classified tobacco strips of different sizes are individually re-roasted, packaged, labeled and temporarily stored to wait for the assembly materials to be ready.

[0013] Preferably, it also includes:

[0014] The classified tobacco leaves of different sizes are combined according to the principle of similar characteristic values ​​of chemical composition to form a tobacco leaf formula module with stable quality from year to year.

[0015] Preferably, it also includes:

[0016] According to the formula design plan, the leaves are spread and loaded according to the proportion, and the leaves are moistened and fully mixed. After moistening, the leaves are sorted and removed of impurities, and then the leaf shape adjustment equipment is used to adjust the size of the leaves, and then they are mixed in the mixing cabinet to ensure homogeneous processing.

[0017] Preferably, it also includes:

[0018] Based on the formula requirements, market positioning and historical sales data of cigarette products, a product database is established to determine the usage positioning and scale of tobacco leaves from different production areas and grades in the corresponding tobacco formula modules, so as to keep the demand in dynamic balance.

[0019] Preferably, it also includes:

[0020] The mechanical property data of tobacco leaves of different years, origins and grades are collected and analyzed, and a raw material mechanical property database is established to clarify the processing parameters of tobacco leaves in the corresponding tobacco leaf formula module. The processing parameters include: material temperature, material moisture content and roller speed.

[0021] Preferably, it also includes:

[0022] Detect and record the key chemical components of tobacco leaves involved in the cigarette product database, and establish a raw material chemical component database to clarify the chemical component characteristic values ​​of tobacco leaf raw materials required for cigarette products, wherein the chemical components include reducing sugar, nicotine, potassium and chlorine.

[0023] Preferably, the process of specifying the processing parameters of tobacco leaves in the corresponding tobacco leaf formula module includes:

[0024] After the second moistening, the material temperature is 58±3℃, the material moisture content is 17.5±0.5%, the leaf stem separation process, one diamond frame, the frame size is 3.5 inches, the roller speed is 590±10r / min;

[0025] The frame size of the second dozen is 3.0 inches, and the speed is 720±10r / min;

[0026] The three-beat frame size is 2.5 inches and the speed is 850±10r / min.

[0027] Preferably, the process of specifying the processing parameters of tobacco leaves in the corresponding tobacco leaf formula module further includes:

[0028] After the second moistening, the material temperature is 61±3℃, the material moisture content is 18.0±0.5%, the leaf stem separation process, one diamond frame, the frame size is 3.5 inches, the roller speed is 600±10r / min;

[0029] The frame size of the second dozen is 3.0 inches, and the speed is 750±10r / min;

[0030] The three-beat frame size is 2.5 inches and the speed is 850±10r / min.

[0031] Preferably, the threshed tobacco leaves are classified and stored according to quality or individually redried and packaged, including:

[0032] For the same redrying plant, the tobacco leaves from adjacent production areas or the same production area shall be classified, temporarily stored and individually labeled;

[0033] For the combined tobacco leaves that need to be redried across factories or across years, they shall be classified, redried and individually labeled.

[0034] The present invention provides a novel leaf threshing and redrying process based on threshing and roasting separation, which separates tobacco leaves into leaf slices by leaf stems, and separates large slices, medium slices, small slices, fragments, and crushed pieces, and then classifies and stores them according to quality or redry and packages them separately to meet the personalized needs of different cigarette products. It can solve the problem that the quality fluctuation of existing tobacco leaves between years easily leads to poor stability of tobacco leaf formula, improve the stability of tobacco leaf formula, and flexibly allocate tobacco leaf resources according to the unique advantages of tobacco leaves in the producing areas, effectively solve the quality fluctuation problem of tobacco leaves between years and regions, and provide a solid guarantee for the stable formula of cigarette products. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below.

[0036] Figure 1 It is a schematic diagram of a novel leaf threshing and re-roasting process based on threshing and roasting separation provided by the present invention.

[0037] Figure 2 It is a flow chart of a novel leaf threshing and re-roasting process based on threshing and roasting separation provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0038] In order to enable persons skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and implementation modes.

[0039] In view of the problem that tobacco leaves in different producing areas and different years are prone to poor stability in their combination formulas, the present invention provides a novel leaf threshing and re-roasting process based on threshing and roasting separation, which solves the problem that the quality fluctuations of existing tobacco leaves from year to year easily lead to poor stability of tobacco leaf formulas. The stability of the tobacco leaf formula can be improved, and tobacco leaf resources can be flexibly allocated according to the unique advantages of tobacco leaves in the producing areas, which effectively solves the problem of quality fluctuations of tobacco leaves from year to year and from region to region, and provides a solid guarantee for the stable formula of cigarette products.

[0040] like Figure 1 and Figure 2 As shown in the figure, a new leaf threshing and redrying process based on threshing and roasting separation comprises:

[0041] S1: vacuum conditioning, cutting, pretreatment of tobacco leaf raw materials with high, medium and low nicotine content and separation of leaf stems;

[0042] S2: Design supporting parameters according to the characteristics of the main grade tobacco raw materials to ensure that tobacco leaves of different qualities are processed into tobacco leaves of uniform size and stable quality during the leaf stem separation stage, wherein the tobacco raw material characteristics include the mechanical properties of tobacco leaves;

[0043] S3: Separate tobacco sheets of different sizes into large sheets, medium sheets, small sheets, fragments and crushed powder, and classify them into large sheets, medium sheets and small sheets as one category, fragments and crushed powder as another category or large sheets, medium sheets as one category, small sheets as one category, fragments and crushed powder as another category according to the internal quality of different sizes or the positioning and demand of cigarette products;

[0044] S4: The tobacco leaves after threshing are classified and stored according to quality or individually re-roasted and packaged to meet the personalized needs of different cigarette products.

[0045] Specifically, in the pretreatment stage: the tobacco raw materials are subjected to vacuum conditioning, cutting, feeding (nicotine, high, medium and low combinations) and other pretreatment and leaf stem separation processes. According to the characteristics of the main grade tobacco raw materials, including the mechanical properties of tobacco leaves, matching parameters are designed to ensure that the leaf stem separation stage can process tobacco leaves of different qualities into tobacco leaves of uniform size and stable quality.

[0046] Ideally, different sizes of tobacco flakes can be separated into five categories: large flakes, medium flakes, small flakes, fragments, and fines. According to the internal quality of different sizes or the positioning and demand of cigarette products, they can be divided into two or three categories: large, medium, small, fragments, fines or large, medium and small, fragments, and fines. The separation of different types of tobacco flakes can be achieved by combining roller screening, vibration screening, etc.

[0047] Classification storage and re-drying: After threshing, the tobacco leaves are classified and stored according to quality or re-dried and packaged separately to meet the personalized needs of different cigarette products. Classification storage requires that different types of tobacco leaves be stored and labeled separately. The storage temperature is 22±2℃ and the humidity is 60±5%. The tobacco leaves are stored in tobacco frames with a height of no more than 1 meter to avoid mildew, squeezing and other conditions that affect the quality of tobacco leaves during storage. Classification re-drying is to separate the leaf stems and combine different types of tobacco leaves for cross-year or cross-re-drying points, and classify the different types of tobacco leaves for re-drying, packaging and labeling.

[0048] The method also includes: individually re-baking and packaging the classified tobacco strips of different sizes, individually labeling and temporarily storing the tobacco strips to wait for the assembly materials to be ready.

[0049] The method also includes: combining the classified tobacco leaves of different sizes according to the principle of similar characteristic values ​​of chemical components to form a tobacco leaf formula module with stable quality from year to year.

[0050] In actual application, the tobacco leaves of different sizes are classified and subsequently grouped into modules. Based on the principle of similar chemical composition characteristic values, the modules are grouped to form tobacco leaf formula modules with stable quality from year to year. If a single redrying point can complete the grouping for the current year, different types of tobacco leaves are stored separately; if the grouping is implemented across years or across redrying points, different types of tobacco leaves are redried and stored separately.

[0051] The method also includes: spreading leaves and feeding materials according to the proportion according to the formula design plan, fully mixing the leaves after moistening, sorting and removing impurities after moistening, and then adjusting the size of the leaves through sheet shape control equipment, and then mixing through a mixing cabinet to ensure homogenized processing.

[0052] The method also includes: establishing a product database based on the formula requirements, market positioning and historical sales data of cigarette products to determine the usage positioning and usage scale of tobacco leaves of different production areas and different grades in corresponding tobacco leaf formula modules, so as to keep the demand in dynamic balance.

[0053] The method also includes: collecting and analyzing the mechanical property data of tobacco leaves of different years, origins and grades, and establishing a raw material mechanical property database to clarify the processing parameters of the tobacco leaves in the corresponding tobacco leaf formula module, wherein the processing parameters include: material temperature, material moisture content and roller speed.

[0054] The method also includes: detecting and recording the key chemical components of tobacco involved in the cigarette product database, and establishing a raw material chemical component database to clarify the chemical component characteristic values ​​of the tobacco raw materials required for cigarette products, wherein the chemical components include: reducing sugar, nicotine, potassium and chlorine.

[0055] In practical applications, a multi-dimensional database system is constructed. The cigarette product database: comprehensively records the formula requirements, market positioning and historical sales data of cigarette products, and provides precise guidance for the optimal allocation of tobacco resources; and clarifies the positioning and scale of use of tobacco leaves of different production areas and grades, and the scale of use is in dynamic balance. Raw material mechanical property database: systematically collects and analyzes the mechanical property data of tobacco leaves of different years, origins and grades, and provides a scientific basis for the precise setting of leaf threshing parameters. Raw material chemical composition database: detects and records the key chemical components of tobacco leaves involved in the cigarette product database (such as reducing sugar, nicotine, potassium, chlorine, etc.), and clarifies the chemical composition characteristic values ​​of tobacco leaf raw materials required for cigarette products.

[0056] Modular combination strategy: Based on the principle of similar chemical composition, tobacco leaf modules are accurately combined. Based on the formula requirements and demand of cigarette products, combined with the quality and style characteristics of raw materials, and the sensory quality of tobacco leaves of different sizes, scientific formula design and flexible module combination are used to ensure that cigarette products can maintain stable quality in different years and regions.

[0057] Provide a variety of module combination solutions to meet the preferences and market demands of different consumers. Establish a cigarette product database, including the positioning and demand of tobacco leaf modules, and the demand is in dynamic balance.

[0058] Different types of tobacco strips are grouped. Temporary tobacco strips: According to the grouping plan and the module design plan, the materials are accurately loaded and mixed, and the process of removing foreign matter is used. After the sheet shape adjustment process, the sheet shape is sorted, and the mixing cabinet is mixed several times to improve the homogeneity level. Finally, it goes through the stages of re-baking, packaging, and labeling. Baked tobacco strips: According to the grouping plan, after vacuum rehumidification, according to the module design plan, the materials are accurately loaded and mixed, and the sheet shape is further loosened and mixed after a run, and the process of removing foreign matter is used. After the sheet shape adjustment process, the sheet shape is sorted, and the mixing cabinet is mixed several times to improve the homogeneity level. Finally, it goes through the stages of re-baking, packaging, and labeling.

[0059] Furthermore, the process of specifying the processing parameters of tobacco leaves in the corresponding tobacco leaf formula module includes:

[0060] After the second moistening, the material temperature is 58±3℃, the material moisture content is 17.5±0.5%, the leaf stem separation process, one diamond frame, the frame size is 3.5 inches, the roller speed is 590±10r / min;

[0061] The frame size of the second dozen is 3.0 inches, and the speed is 720±10r / min;

[0062] The three-beat frame size is 2.5 inches and the speed is 850±10r / min.

[0063] Furthermore, the process of specifying the processing parameters of tobacco leaves in the corresponding tobacco leaf formula module also includes:

[0064] After the second moistening, the material temperature is 61±3℃, the material moisture content is 18.0±0.5%, the leaf stem separation process, one diamond frame, the frame size is 3.5 inches, the roller speed is 600±10r / min;

[0065] The frame size of the second dozen is 3.0 inches, and the speed is 750±10r / min;

[0066] The three-beat frame size is 2.5 inches and the speed is 850±10r / min.

[0067] In one embodiment, after screening the cigarette product raw material library, 8,000 dan of modules with quality reaching CA level from a certain place A in Henan Province are needed in 2023. In that year, the C2F of the place allocated 6,000 dan and the C3F allocated 18,000 dan.

[0068] According to the above module design objectives, module A and module CA are designed with the same quality level as in 2022. The module scale shall not be less than 8,000 dan.

[0069] Combined with the sensory quality level of different sizes of C2F and C3F in 2023, the assembly quality level of large, medium and small pieces of C2F in 2023 and large and medium pieces of C3F in 2023 is equivalent to the quality level of CA module in A area in 2022. Therefore, C2F in 2023 is divided into two categories: large, medium and small, and fragments and broken pieces; C2F in 2023 is divided into three categories: large and medium, small pieces, and fragments and broken pieces. Adjacent grades in the same region can be assembled in modules. Therefore, the tobacco sheets that need to be assembled are temporarily stored, and the tobacco that does not enter this module formula is considered to be assembled across regions, and classified for re-baking and labeling.

[0070] Mechanical properties test of C2F and C3F in site A in 2023:

[0071] Combined with the mechanical properties, the C2F processing parameters are designed. The material temperature after the second moistening is 58±3℃, the material moisture content is 17.5±0.5%, and the leaf stem separation process is as follows: one dozen diamond-shaped frames, the frame size is 3.5 inches, and the roller speed is 590±10r / min; the second dozen frame size is 3.0 inches, and the speed is 720±10r / min; the third dozen frame size is 2.5 inches, and the speed is 850±10r / min.

[0072] Design C3F processing parameters, material temperature after second moistening is 61±3℃, material moisture content is 18.0±0.5%, leaf stem separation process, one dozen diamond-shaped frame, frame size is 3.5 inches, roller speed is 600±10r / min; second dozen frame size is 3.0 inches, speed is 750±10r / min; third dozen frame size is 2.5 inches, speed is 850±10r / min;

[0073] According to the above processing parameters, combined with roller screening and vibration screening, C2F is accurately separated into two categories, large, medium and small, and fragments and crumbs. C3F is separated into three categories, large, medium, small pieces, and fragments and crumbs. C2F fragments and crumbs are separately roasted and labeled, C3F small pieces are separately roasted and labeled, and C3F fragments and fragments are separately roasted and labeled. C2F large, medium and small categories are separately labeled and temporarily stored, and C3F large and medium categories are separately labeled and temporarily stored. Individually roasted and labeled tobacco leaves are waiting for subsequent assembly. Temporarily stored tobacco leaves are waiting for the assembly materials to be ready for subsequent processing. Temporary storage is carried out in an environment with a temperature of 22±2℃ and a humidity of 60±5%. The height of the single frame material is not higher than 1 meter to avoid tobacco mildew, extrusion and other conditions that affect the quality of tobacco leaves during storage.

[0074] The temporarily stored C2F large, medium and small tobacco strips and C3F large and medium tobacco strips are laid out and loaded according to the formula design plan and proportion, and are fully mixed after moistening. After moistening, they are cleaned by various means such as sorting and removing impurities, manual impurity removal, electrostatic impurity removal, screening impurity removal, and hemp roller impurity removal. The size of the tobacco strips is adjusted through the sheet shape control equipment. After the mixing cabinet, they are further mixed to ensure homogenization processing. After re-roasting, pre-pressing packaging, labeling and other processes.

[0075] Furthermore, the threshed tobacco leaves are classified and stored according to quality or individually redried and packaged, including:

[0076] For the same redrying plant, the tobacco leaves from adjacent production areas or the same production area shall be classified, temporarily stored and individually labeled;

[0077] For the combined tobacco leaves that need to be redried across factories or across years, they shall be classified, redried and individually labeled.

[0078] This method achieves in-depth exploration and precise utilization of tobacco raw material characteristics through scientific data analysis and refined process control. Through this process, tobacco resources can be flexibly allocated based on the unique advantages of tobacco leaves in the producing areas, effectively solving the problem of quality fluctuations between years and regions, and providing a solid guarantee for the stable formulation of cigarette products.

[0079] It can be seen that the present invention provides a new leaf threshing and re-baking process based on threshing and baking separation, which separates tobacco leaves into leaf slices by leaf stems, and separates large slices, medium slices, small slices, fragments, and crushed pieces, and then classifies them according to quality for storage or separate re-baking and packaging to meet the personalized needs of different cigarette products. It can solve the problem of annual quality fluctuations in existing tobacco leaves, which easily leads to poor stability of tobacco leaf formulas, improve the stability of tobacco leaf formulas, and flexibly allocate tobacco leaf resources based on the unique advantages of tobacco leaves in the producing areas, effectively solving the problem of annual and regional quality fluctuations in tobacco leaves, and providing a solid guarantee for the stable formula of cigarette products.

[0080] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A novel leaf threshing and re-roasting process based on threshing and roasting separation, characterized in that: include: The tobacco raw materials are subjected to vacuum conditioning, cutting, pretreatment of nicotine, high, medium and low mixing, and leaf stem separation; Designing supporting parameters according to the characteristics of the main grade tobacco raw materials to ensure that tobacco leaves of different qualities are processed into tobacco leaves of uniform size and stable quality during the leaf stem separation stage, wherein the tobacco raw material characteristics include the mechanical characteristics of tobacco leaves; Separate tobacco sheets of different sizes into large sheets, medium sheets, small sheets, fragments and crushed powder, and classify them into large sheets, medium sheets and small sheets as one category, fragments and crushed powder as another category or large sheets, medium sheets as one category, small sheets as one category, fragments and crushed powder as another category according to the internal quality of different sizes or the positioning and demand of cigarette products; The threshed tobacco leaves are classified and stored according to quality or re-roasted and packaged individually to meet the personalized needs of different cigarette products.

2. The novel leaf threshing and re-roasting process based on threshing and roasting separation according to claim 1 is characterized in that: Also includes: The classified tobacco strips of different sizes are individually re-roasted, packaged, labeled and temporarily stored to wait for the assembly materials to be ready.

3. The novel leaf threshing and re-roasting process based on threshing and roasting separation according to claim 2 is characterized in that: Also includes: The classified tobacco leaves of different sizes are combined according to the principle of similar characteristic values ​​of chemical composition to form a tobacco leaf formula module with stable quality from year to year.

4. The novel leaf threshing and re-roasting process based on threshing and roasting separation according to claim 3 is characterized in that: Also includes: According to the formula design plan, the leaves are spread and loaded according to the proportion, and the leaves are moistened and fully mixed. After moistening, the leaves are sorted and removed of impurities, and then the leaf shape adjustment equipment is used to adjust the size of the leaves, and then they are mixed in the mixing cabinet to ensure homogeneous processing.

5. The novel leaf threshing and re-roasting process based on threshing and roasting separation according to claim 4 is characterized in that: Also includes: Based on the formula requirements, market positioning and historical sales data of cigarette products, a product database is established to determine the usage positioning and scale of tobacco leaves from different production areas and grades in the corresponding tobacco formula modules, so as to keep the demand in dynamic balance.

6. The novel leaf threshing and re-roasting process based on threshing and roasting separation according to claim 5 is characterized in that: Also includes: The mechanical property data of tobacco leaves of different years, origins and grades are collected and analyzed, and a raw material mechanical property database is established to clarify the processing parameters of tobacco leaves in the corresponding tobacco leaf formula module. The processing parameters include: material temperature, material moisture content and roller speed.

7. The novel leaf threshing and re-roasting process based on threshing and roasting separation according to claim 6 is characterized in that: Also includes: Detect and record the key chemical components of tobacco leaves involved in the cigarette product database, and establish a raw material chemical component database to clarify the chemical component characteristic values ​​of tobacco leaf raw materials required for cigarette products, wherein the chemical components include reducing sugar, nicotine, potassium and chlorine.

8. The novel leaf threshing and re-roasting process based on threshing and roasting separation according to claim 7 is characterized in that: The process of specifying the processing parameters of tobacco leaves in the corresponding tobacco leaf recipe module includes: After the second moistening, the material temperature is 58±3℃, the material moisture content is 17.5±0.5%, the leaf stem separation process, one diamond frame, the frame size is 3.5 inches, the roller speed is 590±10r / min; The frame size of the second dozen is 3.0 inches, and the speed is 720±10r / min; The three-beat frame size is 2.5 inches and the speed is 850±10r / min.

9. The novel leaf threshing and re-roasting process based on threshing and roasting separation according to claim 8 is characterized in that: The process of specifying the processing parameters of the tobacco leaves in the corresponding tobacco leaf recipe module also includes: After the second moistening, the material temperature is 61±3℃, the material moisture content is 18.0±0.5%, the leaf stem separation process, one diamond frame, the frame size is 3.5 inches, the roller speed is 600±10r / min; The frame size of the second dozen is 3.0 inches, and the speed is 750±10r / min; The three-beat frame size is 2.5 inches and the speed is 850±10r / min.

10. The novel leaf threshing and re-roasting process based on threshing and roasting separation according to claim 9 is characterized in that: The threshed tobacco leaves are classified and stored according to quality or individually redried and packaged, including: For the same redrying plant, the tobacco leaves from adjacent production areas or the same production area shall be classified, temporarily stored and individually labeled; For the combined tobacco leaves that need to be redried across factories or across years, they shall be classified, redried and individually labeled.

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