Cloud special line thin cigarette silk processing technology and central control process

Abstract

The application relates to the technical field of tobacco processing, and particularly discloses a cloud tobacco special line thin cigarette tobacco processing technology and a central control technology. The original tobacco leaves are divided into a plurality of leaf group raw materials and tobacco stem raw materials; the plurality of leaf group raw materials are simultaneously pretreated, the tobacco stem raw materials are pretreated, and the sheet raw materials are pretreated; the plurality of pretreated leaf group raw materials are fully formulated and mixed to form full-formulation leaf groups, and the full-formulation leaf groups are sequentially subjected to loose moisture recovery, primary feeding and primary tobacco storage. The cloud tobacco special line thin cigarette tobacco processing technology and the central control technology can simultaneously pretreat the plurality of leaf group raw materials and the tobacco stem raw materials, improve the processing efficiency of the tobacco, retain the characteristics of the leaf group raw materials, improve the purity of each leaf group raw material, ensure the high consistency of the materials in the subsequent feeding, cutting and flavoring processes, and improve the quality stability and the uniformity of the smoking taste among the final cigarette batches.

Description

Technical Field

[0001] This invention relates to the field of tobacco processing technology, and in particular to the processing technology and central control technology for fine cigarettes produced on the Yunnan Tobacco dedicated line. Background Technology

[0002] Cigarette processing is a crucial step in cigarette production, and the level of technology directly determines the physical properties and sensory quality of the final cigarette product. With the continuous development of cigarette formulation technology, modern cigarettes are often made from a blend of various tobacco leaves from different origins, grades, and characteristics.

[0003] In existing cigarette manufacturing processes, a uniform production line is often used to perform extensive pretreatment on all tobacco leaves, ignoring the differences in physical properties (such as thickness, water absorption, and impurity content) of different leaf groups. This leads to over- or under-treatment of some raw materials, or group processing with excessively delayed blending, resulting in poor flavor uniformity and stability between batches of the final product. During the feeding and rehydration of leaf segments, existing technologies often use multiple feedings or extensive moisture adjustment methods, which can easily lead to overheating of tobacco leaves, loss of aroma, or uneven moisture distribution, thus affecting the quality of subsequent shredding. Therefore, there is room for improvement in the cigarette manufacturing process of Yunnan Tobacco's dedicated line for fine cigarettes.

[0004] Therefore, a special production line for Yunnan cigarettes and a central control process are needed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a special production line for fine cigarettes and a central control process that can simultaneously pre-treat different parts of the tobacco leaves, and then blend the pre-treated tobacco leaves to ensure the performance of the tobacco leaves.

[0006] This invention provides a processing technology and central control process for producing slim cigarettes on a dedicated Yunnan tobacco production line. The processing technology for producing slim cigarettes on a dedicated Yunnan tobacco production line includes: S10. Divide the raw tobacco leaves into several leaf groups and tobacco stems; S20. Simultaneously pre-treat several of the leaf group raw materials, pre-treat the tobacco stem raw materials, and pre-treat the sheet raw materials; S30. Mix the pretreated leaf group raw materials with the full formula to form a full formula leaf group, and then perform loosening and rehydration, one feeding and first-stage storage on the full formula leaf group in sequence. S40. Perform secondary processing on the material after primary leaf storage, and then perform secondary leaf storage. S50. The material after secondary storage is sequentially shredded, dried and cooled; S60. The pretreated tobacco stem raw material is blended with the cooled material, and the blended material is flavored and stored.

[0007] As an optional technical solution, S10 includes: S11. The original tobacco leaves are cut into original tobacco flakes and original tobacco stems, and all the original tobacco stems form the tobacco stem raw material; S12. The original tobacco leaves are divided into upper tobacco leaves, middle tobacco leaves and lower tobacco leaves. All the upper tobacco leaves form the upper leaf group raw material, all the middle tobacco leaves form the middle leaf group raw material, and all the lower tobacco leaves form the lower leaf group raw material.

[0008] As an optional technical solution, the simultaneous pretreatment of several of the aforementioned leaf group raw materials specifically includes: Different leaf group raw materials are placed into different pretreatment devices, and each pretreatment device pretreatments the corresponding leaf group raw material.

[0009] As an optional technical solution, in each of the pretreatment devices pretreatment the corresponding leaf group raw materials, The pretreatment specifically includes: slicing the raw material of the leaf group; blending the sliced ​​material into a first thin sheet to form a mixed tobacco sheet; loosening and rehydrating the mixed tobacco sheet; and removing impurities from the loosened and rehydrated mixed tobacco sheet.

[0010] As an optional technical solution, when blending the raw materials after slicing into the first thin slice, the blending ratio of the first thin slice is controlled to be 4%-8%, and the blending amount is 150kg / batch-250kg / batch.

[0011] As an optional technical solution, the loosening and rehydration of the mixed tobacco sheets specifically includes: The mixed tobacco is fed into the drum, and steam is directly injected into the drum. The steam flow rate is controlled at 2800 kg / h-3200 kg / h, the steam temperature is controlled at 60℃-66℃, the discharge temperature of the drum outlet is controlled at 60±3℃, and the moisture content of the mixed tobacco output through the drum is controlled at 15%-19%.

[0012] As an optional technical solution, the pretreatment of the tobacco stem raw material specifically includes: The process involves: removing impurities from the tobacco stem raw material; loosening and rehydrating the material after removing impurities; storing the loosened and rehydrated material; heating the stored material; pressing the heated material; cutting the pressed material into strips; drying the strips; removing impurities from the dried material; flavoring the removed material; and storing the flavored material.

[0013] As an optional technical solution, S30 specifically includes: The full-formula leaf assembly is fed once using a proportional feeding mode. During the feeding process, the process flow rate is controlled at 3000 kg / h, the feeding ratio is 5%, and the temperature of the liquid is in the range of 47℃-53℃.

[0014] As an optional technical solution, the primary storage leaf specifically comprises: After the material is fed once, it is stored in a primary storage chamber. The storage environment temperature is controlled at 22-26℃, the relative humidity is controlled at 60-65%, and the storage time is controlled at 2-4 hours.

[0015] As an optional technical solution, in S40, the secondary processing specifically includes: The material after primary leaf storage is mixed with a second sheet; the material after mixing with the second sheet is then fed a second time.

[0016] The Yunyan dedicated line slim cigarette manufacturing process provided by this invention has at least the following beneficial effects: The Yunyan special-line slim cigarette manufacturing process provided by this invention includes dividing the raw tobacco leaves into several leaf groups and tobacco stems; pre-treating the leaf groups simultaneously, pre-treating the tobacco stems, and pre-treating the sheet tobacco; blending the pre-treated leaf groups into a complete formula to form a complete formula leaf group, and sequentially loosening and rehydrating the complete formula leaf group, adding material once, and storing the leaf group for the first stage; performing a second stage of processing on the material after the first stage of storage, and storing the leaf group for the second stage; sequentially cutting, drying, and cooling the material after the second stage of storage; blending the pre-treated tobacco stems with the cooled material, and flavoring and storing the blended material. This special-line slim cigarette processing technology of Yunnan Tobacco divides the raw tobacco leaves into several leaf groups and tobacco stems. It can pre-treat several leaf groups and tobacco stems separately at the same time, which can improve the processing efficiency of tobacco shreds. It can also perform corresponding pre-treatment on several leaf groups, retain the characteristics of each leaf group and improve the purity of each leaf group. After pre-treatment, the whole formula is blended to ensure a high degree of consistency of materials in the subsequent feeding, cutting and flavoring processes, thereby improving the quality stability and flavor uniformity between the final batches of cigarettes. Attached Figure Description

[0017] Figure 1 This is a flowchart of the Yunyan special line slim cigarette manufacturing process in an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure of the tobacco processing system in an embodiment of the present invention; Figure 3 This is a schematic diagram of the pretreatment line of the tobacco processing system in an embodiment of the present invention; Figure 4 This is a schematic diagram of the secondary pretreatment line of the tobacco processing system in an embodiment of the present invention; Figure 5 This is a schematic diagram of the sheet processing line of the tobacco processing system in an embodiment of the present invention; Figure 6 This is a schematic diagram of the tobacco stem processing line of the tobacco processing system in an embodiment of the present invention.

[0018] In the picture: 10. Pre-treatment line; 20. Primary leaf storage device; 30. Secondary pre-treatment line; 40. Secondary leaf storage device; 50. Stem processing line; 60. Leaf processing line. Detailed Implementation

[0019] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] like Figure 1 As shown, this embodiment provides a Yunyan dedicated line slim cigarette manufacturing process and central control process, which includes the following steps.

[0024] S10. Divide the raw tobacco leaves into several leaf groups and tobacco stems.

[0025] Specifically, in this embodiment, by dividing the raw tobacco leaves into several leaf groups and stems, targeted pretreatment can be carried out on different parts of the raw tobacco leaves. This preserves the characteristics of each leaf group and stem, improves purity, and ensures that each leaf group can be properly processed. After pretreatment, the whole formula is mixed, which guarantees the quality of subsequent tobacco products and improves the quality of cigarettes.

[0026] Preferably, in this embodiment, S10 includes the following steps.

[0027] S11. The original tobacco leaves are cut into original tobacco flakes and original tobacco stems. All the original tobacco stems are used to form tobacco stem raw materials.

[0028] Specifically, in this embodiment, the original tobacco leaves are cut into original tobacco leaves and original tobacco stems through a "leaf-removing and stem-removing" process. The original tobacco leaves and original tobacco stems are then separated by a combination of wind sorting and vibrating sieving, so that the original tobacco leaves and original tobacco stems can be pre-processed separately in subsequent processes. The "leaf-removing and stem-removing" process is a common processing technology in the prior art and will not be described in detail here.

[0029] S12. The original tobacco leaves are divided into upper tobacco leaves, middle tobacco leaves and lower tobacco leaves. All the upper tobacco leaves form the upper leaf group raw material, all the middle tobacco leaves form the middle leaf group raw material, and all the lower tobacco leaves form the lower leaf group raw material.

[0030] Specifically, in this embodiment, since the light, ventilation, and nutrient supply conditions of the upper, middle, and lower tobacco leaves are different, there are systematic differences in their appearance, chemical composition, sensory quality, and combustion characteristics. Therefore, by performing separate pretreatment on the upper, middle, and lower tobacco leaves, it can be ensured that all three tobacco leaves have good characteristics, which is beneficial to improving the quality of the finished tobacco shreds.

[0031] Optionally, in this embodiment, when dividing the raw tobacco leaves into upper, middle, and lower tobacco leaves, an AI-based intelligent tobacco leaf sorting and grading device with visual recognition can be used. This device combines a high-resolution camera, a light source, and a convolutional neural network to automatically identify the part features of the raw tobacco leaves (such as leaf shape, leaf texture, and color distribution), thereby achieving automatic sorting of the upper, middle, and lower tobacco leaves and improving the cutting efficiency of the raw tobacco leaves.

[0032] S20. Simultaneously pre-treat several leaf groups of raw materials, pre-treat tobacco stem raw materials, and pre-treat sheet raw materials.

[0033] Specifically, in this embodiment, a plurality of pretreatment lines 10 are provided, and the plurality of pretreatment lines 10 and a plurality of leaf raw materials are provided in a one-to-one correspondence, thereby improving the pretreatment effect of the plurality of leaf raw materials and thus improving the processing efficiency of tobacco.

[0034] Specifically, in this embodiment, each pretreatment line 10 pretreatments the corresponding leaf group raw material, and the pretreatment specifically includes the following steps.

[0035] S211. Slice the leaf material.

[0036] Specifically, in this embodiment, the tobacco leaf raw material is sliced ​​using a tobacco leaf slicer to reduce the volume of the raw material, which facilitates subsequent processing.

[0037] S212. The sliced ​​material is blended into a first thin sheet to form mixed tobacco sheets.

[0038] Specifically, in this embodiment, blending the first sheet into the tobacco leaf raw material not only improves the utilization rate of the raw material but also effectively controls the content of tar and harmful components, optimizing the tobacco formula. Further, when blending the first sheet, the blending ratio of the first sheet is controlled at 4%-8%, and the blending amount is 150kg / batch-250kg / batch. Optionally, the blending ratio of the first sheet can be 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, etc., and the blending amount can be 160kg / batch, 170kg / batch, 180kg / batch, 190kg / batch, 200kg / batch, 210kg / batch, 220kg / batch, 230kg / batch, 240kg / batch, or 250kg / batch, etc. The blending ratio and blending amount of the first sheet can be specifically set according to actual use and are not specifically limited here.

[0039] Specifically, in this embodiment, such as Figure 5 As shown, the first sheet is pre-treated by the sheet pre-treatment line 10. The specific sheet pre-treatment line 10 includes sheet slicing, sheet rehydration, and sheet pre-assembly. The above processes are all existing technologies and will not be described in detail here.

[0040] Optionally, in this embodiment, the first sheet is made by a papermaking process, and the papermaking process for processing the first sheet is existing technology, which will not be described in detail here.

[0041] Optionally, in this embodiment, when blending, a thin-plate wire electronic scale is used as the main scale to set the blending ratio.

[0042] S213. Loosen and rehydrate the mixed tobacco sheets.

[0043] Specifically, in this embodiment, loosening and rehydrating the mixed tobacco flakes optimizes their physical state and processing performance, improves their processing resistance, increases their flexibility, and prevents them from breaking apart during subsequent processing, thereby increasing the yield and reducing material waste. It also effectively breaks up lumps of the mixed tobacco flakes, making their structure looser and their moisture content and temperature distribution more uniform, ensuring uniformity and stability during blending. Furthermore, it aids in pest control and quality regulation, improving the overall quality of the mixed tobacco flakes.

[0044] Specifically, in this embodiment, a loosening and rehydration device is used when the mixed tobacco flakes are loosened and rehydrated. The loosening and rehydration device includes a drum, which has an inlet, an outlet, and an air inlet. The mixed tobacco flakes enter the drum through the inlet, and steam is directly injected into the drum through the air inlet. The steam flow rate is controlled at 2800 kg / h-3200 kg / h, and the steam temperature is controlled at 60℃-66℃. The mixed tobacco flakes are output from the drum through the outlet. During discharge, the outlet temperature of the drum is controlled at 60±3℃, and the moisture content of the mixed tobacco shreds output from the drum is controlled at 15%-19%. Preferably, the steam flow rate is 3000 kg / h. In other embodiments, the steam flow rate can be 2800 kg / h, 2850 kg / h, 2900 kg / h, 2950 kg / h, 3050 kg / h, 3100 kg / h, 3150 kg / h, or 3200 kg / h, etc., and no specific limitation is made here. Preferably, the temperature of the steam is 63°C. In other embodiments, the temperature of the steam can be 60°C, 61°C, 62°C, 64°C, 65°C, or 66°C, etc., and no specific limitation is made here.

[0045] S214. Remove impurities from the loose, rehydrated mixed tobacco sheets.

[0046] Specifically, in this embodiment, impurities are removed from the loose, rehydrated mixed tobacco sheets, thereby separating impurities from the mixed tobacco sheets and further improving the purity of the raw materials of the mixed tobacco sheets, ensuring the quality of the tobacco shreds processed subsequently.

[0047] Specifically, in this embodiment, an air classifier is used for impurity removal. The air classifier is existing technology and will not be described in detail here.

[0048] Optionally, in this embodiment, as Figure 2 and Figure 3 As shown, taking the example of preprocessing line 10 with 4 lines, we will not go into details here.

[0049] Furthermore, the pretreatment of tobacco stem raw materials specifically includes the following steps.

[0050] S221. Remove impurities from tobacco stem raw materials.

[0051] Specifically, in this embodiment, the tobacco stem raw material is removed by an air classifier, thereby improving the purity of the tobacco stem raw material and improving the quality of the product.

[0052] S222. Rehydrate the material after impurity removal.

[0053] Specifically, in this embodiment, rehydrating the tobacco stem raw material can increase its moisture content, ensure a suitable temperature, loosen the compressed structure, improve processing adaptability, and create a uniform and stable material state for subsequent processes such as shredding or expansion, thereby improving product performance.

[0054] S223. Store loose, rehydrated materials.

[0055] Specifically, in this embodiment, due to the dense structure of the tobacco stem raw material, its high lignin and cellulose content, and slow water penetration, the storage process allows for a uniform distribution of moisture within the tobacco stem raw material. Moisture absorbed from the surface gradually penetrates into the internal tissue, thereby improving the processability of the tobacco stem raw material.

[0056] Optionally, in this embodiment, the tobacco stem raw material is stored for 4-24 hours, the storage temperature is 40-50°C, and the moisture content of the tobacco stem raw material after storage is controlled to be 22-24%.

[0057] Optionally, in this embodiment, in order to ensure the processing performance of the tobacco stem raw material, the tobacco stem raw material after impurity removal can be rehydrated twice and stored twice. The first loose rehydration is carried out by water tank rehydration, followed by the first storage of stems, then the drum rehydration, and then the second storage of stems, which can improve the processing performance of the tobacco stem raw material.

[0058] S224. Heat the material after storage.

[0059] Specifically, in this embodiment, by heating the material after storing the stems, its temperature and softness can be increased, and its processing resistance can be enhanced, so that subsequent processing such as cutting into shreds and pressing into stems can be carried out smoothly. At the same time, it reduces breakage, ensures the quality of the stem shreds, and thus improves the quality of tobacco stems.

[0060] Optionally, in this embodiment, the material after the tobacco stems are stored can be heated by any one of the following devices: a water washing device (such as a hot water tank), a spiral tobacco stem rehumidifier, a tunnel tobacco stem rehumidifier (also known as a WQ type rehumidifier), and a drum-type stem moistening machine. All of the above devices are existing technologies and will not be described in detail here.

[0061] S225. Press the heated material to remove the stems.

[0062] Specifically, in this embodiment, by pressing the heated material, the structure of the heated material can be loosened by mechanical extrusion, which facilitates subsequent processing steps such as shredding and feeding, thereby improving the uniformity and processing performance of the shredded material.

[0063] S226. Cut the material after pressing into strips.

[0064] Specifically, in this embodiment, the material after pressing the tobacco stems is cut into shreds using a rotary cutter or a curved blade horizontal rotary cutter, so that the tobacco stem raw material is formed into shreds and the uniformity of the shreds can be ensured.

[0065] Specifically, in this embodiment, after cutting the stems into strips, a process of adding liquid ingredients such as flavoring agents and humectants is performed on the stems. This process can improve the sensory quality of the stems, enhance their processing suitability, and improve the flavor and combustion performance of the finished cigarette. Optionally, after the adding process, the stems can be temporarily stored to improve the adding effect and thus enhance the performance of the stems.

[0066] Optionally, such as Figure 6 As shown, in this embodiment, the tobacco stem raw material is pretreated by the tobacco stem processing line 50. The tobacco stem processing line 50 is existing technology, so it will not be described in detail here.

[0067] S227. Dry the material after cutting the stems into shreds.

[0068] Specifically, in this embodiment, airflow drying is used to dry the stems, which can remove excess moisture, control the moisture content of the stems, improve the curing expansion effect, enhance the filling and elasticity of the stems, improve combustion performance and sensory consistency, and meet the compatibility requirements of subsequent processes.

[0069] S228. Remove impurities from the dried material.

[0070] Specifically, in this embodiment, the dried material is cleaned by an air classifier to remove impurities from the stems, thereby improving the safety, uniformity, combustion performance, and sensory quality of the cigarette product. S229. Add fragrance to the material after impurity removal.

[0071] Specifically, in this embodiment, flavoring the purified material can further improve the sensory quality of the stems, making the stems more suitable for blending with leaf shreds and meeting the flavor design requirements of cigarette products.

[0072] S230. Store the flavored material.

[0073] Specifically, in this embodiment, the aroma-enhancing effect of the stems can be improved, and moisture balance, processing stability and adaptability to subsequent processes can be achieved.

[0074] Optionally, in this embodiment, the stems are stored through a secondary storage device 40, which can reduce additional device costs and improve economic efficiency.

[0075] S30. Mix the pretreated leaf group raw materials with the full formula to form a full formula leaf group, and then add the full formula leaf group once and store the leaves for the first time.

[0076] Specifically, in this embodiment, the pretreated upper, middle, and lower tobacco leaves are mixed according to a preset ratio to form a complete blend of leaves. Then, the complete blend of leaves is fed once using a proportional feeding mode. During the single feeding process, the process flow rate is controlled at 3000 kg / h, the feeding ratio is 5%, and the liquid temperature is controlled within the range of 47-53℃ to ensure the effectiveness of the single feeding.

[0077] Specifically, in this embodiment, the material added in one feeding is sugar, and the amount of sugar used is 50 kg / t. Optionally, in this embodiment, the sugar flavoring must be stored separately, and the storage environment must be dark, dry, well-ventilated, at a low temperature, and free from pollution.

[0078] After the first feeding, the leaves are stored for the first stage. During the first stage of leaf storage, the ambient temperature is controlled at 22-26℃, the relative humidity is controlled at 60-65%, and the storage time is controlled at 2-4 hours. This can achieve the moisture balance of the whole formula leaf group, improve the processing stability and adaptability to subsequent processes.

[0079] Optionally, in this embodiment, the primary storage blades can be either box-type or cabinet-type, and the specific selection can be made according to the actual usage scenario. No specific limitations are imposed here. Furthermore, both box-type and cabinet-type storage blades are existing technologies and will not be described in detail here.

[0080] Optionally, in this embodiment, if the materials processed by different pretreatment lines 10 have the same storage parameters, they can be stored in the same primary storage device 20, or they can be stored in different primary storage devices 20. Here, we take the storage in the same primary storage device 20 as an example, which is only an example and not a limitation, and will not be elaborated here.

[0081] S40. Perform secondary processing on the material after primary leaf storage, and then perform secondary leaf storage.

[0082] Specifically, in this embodiment, the secondary processing includes the following steps.

[0083] S41. The material after the first-stage leaf storage is mixed with a second sheet.

[0084] Specifically, in this embodiment, the material after primary leaf storage is blended with a second sheet, which can prevent the second sheet from breaking during processing, and can also achieve formula homogenization, stabilize cigarette quality, improve raw material utilization, and assist in reducing tar and harm, thereby improving the quality of tobacco.

[0085] S42. The material after the second thin film is mixed is fed a second time.

[0086] Specifically, in this embodiment, water is added to the material after the second sheet is added to regulate the moisture content of the material and to increase the temperature of the material.

[0087] Optionally, during the secondary feeding process, the process water temperature is controlled at 40-46℃, and the output moisture content is controlled at 20.2-22.2%, thereby improving the material performance.

[0088] Furthermore, secondary feeding followed by secondary leaf storage can further even out the moisture content of the material, improve the quality of the material, and thus improve the quality of the tobacco.

[0089] Optionally, in this embodiment, since different specifications of cigarettes require different secondary processing, multiple secondary pretreatment lines 30 are provided according to actual use, which can simultaneously perform secondary processing on the material after primary leaf storage with different parameters, thereby improving the processing efficiency of tobacco leaves. Further, optionally, in this embodiment, four secondary pretreatment lines 30 are provided as an example, which will not be elaborated further.

[0090] S50. The material after secondary storage is sequentially shredded, dried and cooled.

[0091] Specifically, in this embodiment, the material is shredded using a shredder, with the shred width set at 0.7 mm and the moisture content of the shreds controlled at 20-21%.

[0092] Specifically, in this embodiment, the shredded material is dried using a thin-plate drying mode with cylinder wall temperature control. During drying, the process hot air temperature is 118-122℃, and the cylinder wall temperature is consistently maintained at 121-131℃. The output moisture content is controlled at 13.2-13.6%, thus ensuring the drying effect of the material. Furthermore, the thin-plate drying mode with cylinder wall temperature control results in gentler heat exchange, effectively reducing mechanical impact and thermal breakage during the drying process. This leads to a high percentage of whole tobacco shreds while maintaining excellent filling value (4.2-4.8cm). 3 / g), which significantly improves the utilization rate of tobacco raw materials and the combustion performance of cigarettes.

[0093] Alternatively, in another embodiment, other equipment may be used for drying the material, which will not be described in detail here.

[0094] After the material is dried, it is cooled to facilitate subsequent mixing with stems and other materials, ensuring product performance.

[0095] S60. The pretreated tobacco stem raw material is blended with the cooled material, and the blended material is flavored and stored.

[0096] Specifically, in this embodiment, the tobacco stem raw material is pretreated to form stem shreds, and the cooled material is tobacco shreds. The stem shreds and tobacco shreds are mixed to form mixed tobacco shreds. The mixed tobacco shreds are then flavored and finally stored to obtain the tobacco shred product.

[0097] Specifically, in this embodiment, the proportion of stems in the blend is 0-6%.

[0098] Specifically, in this embodiment, flavoring is performed using a proportional flavoring method. The process flow rate during flavoring is 2000-3000 kg / h, and the flavoring ratio is 0.3%-0.5% to ensure the flavoring effect of the mixed tobacco. After flavoring, the purity is controlled to be ≥99.5%, the whole tobacco yield ≥80%, the broken tobacco yield ≤2%, and the filling value 4.2-4.8 cm. 3 / g, with an output moisture content of 12.8-13.8%.

[0099] Optionally, in this embodiment, fragrance is used directly when adding fragrance, and the amount of fragrance is 3 kg / t of material weight. The type of fragrance can be set according to the actual use scenario, which will not be elaborated here.

[0100] After adding flavoring, the tobacco is stored for at least 2 hours, and the moisture content of the tobacco leaves leaving the warehouse is 12-13%, thereby ensuring the quality of the tobacco leaves.

[0101] like Figures 2 to 6As shown, in order to implement the above-mentioned Yunyan dedicated line fine cigarette manufacturing process and central control process, this embodiment also provides a tobacco processing system. The tobacco processing system includes several pretreatment lines 10, several secondary pretreatment lines 30, a primary leaf storage device 20, a secondary leaf storage device 40, a tobacco stem processing line 50, and a sheet processing line 60. The several pretreatment lines 10 are all located upstream of the primary leaf storage device 20, the several secondary processing lines are located between the primary leaf storage device 20 and the secondary leaf storage device 40, the tobacco stem processing line 50 is located upstream of the secondary leaf storage device 40, and the sheet processing line 60 is located upstream of the primary leaf storage device 20. The tobacco processing system provided in this embodiment has several pretreatment lines 10 that can simultaneously pretreat several leaf groups of raw materials. Simultaneously, tobacco stem processing line 50 pretreats tobacco stem raw materials, and sheet processing line 60 pretreats sheet raw materials. Then, the pretreated leaf groups are fully blended to form a complete blend of leaf materials. After loosening, rehydrating, and initial feeding of the complete blend of leaf materials, the materials are stored in a primary leaf storage device 20. Then, the materials undergo secondary processing in a secondary processing line, and finally, are stored in a secondary leaf storage device. Forty pairs of materials are placed for secondary storage, and then the materials after secondary storage are shredded, dried and cooled. The pre-treated tobacco stem raw materials are then blended with the cooled materials, and the blended materials are flavored and stored. This tobacco processing system processes tobacco shreds using the above-mentioned Yunnan Tobacco special line fine cigarette shredding process. It can retain the characteristics of each leaf group of raw materials and improve the purity. After pretreatment, the whole formula is blended to ensure a high degree of consistency of materials in the subsequent feeding, shredding and flavoring processes, thereby improving the quality stability and flavor uniformity between the final cigarette batches.

[0102] Specifically, in this embodiment, the tobacco processing system also includes a control unit. Several pretreatment lines 10, several secondary pretreatment lines 30, a primary leaf storage device 20, a secondary leaf storage device 40, a tobacco stem processing line 50, and a sheet processing line 60 are all communicatively connected to the control unit. Thus, the control unit can control the parameters of the several pretreatment lines 10, several secondary pretreatment lines 30, a primary leaf storage device 20, a secondary leaf storage device 40, a tobacco stem processing line 50, and a sheet processing line 60, thereby improving the smoothness of the processing and ensuring the quality of the tobacco.

[0103] Obviously, the above description is merely a preferred embodiment of the present invention and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of disclosure involved in this invention is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this invention.

Claims

1. The processing technology and central control technology for fine cigarettes produced on the Yunyan dedicated line, characterized in that: Includes the following steps: S10. Divide the raw tobacco leaves into several leaf groups and tobacco stems; S20. Simultaneously pre-treat several of the leaf group raw materials, pre-treat the tobacco stem raw materials, and pre-treat the sheet raw materials; S30. Mix the pretreated leaf group raw materials with the full formula to form a full formula leaf group, and then perform loosening and rehydration, one feeding and first-stage storage on the full formula leaf group in sequence. S40. Perform secondary processing on the material after primary leaf storage, and then perform secondary leaf storage. S50. The material after secondary storage is sequentially shredded, dried and cooled; S60. The pretreated tobacco stem raw material is blended with the cooled material, and the blended material is flavored and stored.

2. The Yunyan dedicated line slim cigarette manufacturing process and central control process according to claim 1, characterized in that, S10 includes: S11. The original tobacco leaves are cut into original tobacco flakes and original tobacco stems, and all the original tobacco stems form the tobacco stem raw material; S12. The original tobacco leaves are divided into upper tobacco leaves, middle tobacco leaves and lower tobacco leaves. All the upper tobacco leaves form the upper leaf group raw material, all the middle tobacco leaves form the middle leaf group raw material, and all the lower tobacco leaves form the lower leaf group raw material.

3. The Yunyan dedicated line slim cigarette manufacturing process and central control process according to claim 1, characterized in that, The pretreatment of several of the aforementioned leaf group raw materials specifically includes: Different leaf group raw materials are placed into different pretreatment devices, and each pretreatment device pretreatments the corresponding leaf group raw material.

4. The Yunyan dedicated line slim cigarette manufacturing process and central control process according to claim 3, characterized in that, In each of the pretreatment devices, the corresponding leaf group raw materials are pretreated. The pretreatment specifically includes: slicing the raw material of the leaf group; blending the sliced ​​material into a first thin sheet to form a mixed tobacco sheet; loosening and rehydrating the mixed tobacco sheet; and removing impurities from the loosened and rehydrated mixed tobacco sheet.

5. The Yunyan dedicated line slim cigarette manufacturing process and central control process according to claim 3, characterized in that, When blending the raw materials after slicing into the first thin slice, the blending ratio of the first thin slice is controlled to be 4%-8%, and the blending amount is 150kg / batch-250kg / batch.

6. The Yunyan dedicated line slim cigarette manufacturing process and central control process according to claim 3, characterized in that, The loosening and rehydration of the mixed tobacco sheets specifically includes: The mixed tobacco is fed into the drum, and steam is directly injected into the drum. The steam flow rate is controlled at 2800 kg / h-3200 kg / h, the steam temperature is controlled at 60℃-66℃, the discharge temperature of the drum outlet is controlled at 60±3℃, and the moisture content of the mixed tobacco output through the drum is controlled at 15%-19%.

7. The Yunyan dedicated line slim cigarette manufacturing process and central control process according to any one of claims 1-6, characterized in that, The pretreatment of the tobacco stem raw material specifically includes: The process involves: removing impurities from the tobacco stem raw material; loosening and rehydrating the material after removing impurities; storing the loosened and rehydrated material; heating the stored material; pressing the heated material; cutting the pressed material into strips; drying the strips; removing impurities from the dried material; flavoring the removed material; and storing the flavored material.

8. The Yunyan dedicated line slim cigarette manufacturing process and central control process according to claim 7, characterized in that, S30 specifically includes: The full-formula leaf assembly is fed once using a proportional feeding mode. During the feeding process, the process flow rate is controlled at 3000 kg / h, the feeding ratio is 5%, and the temperature of the liquid is in the range of 47℃-53℃.

9. The Yunyan dedicated line slim cigarette manufacturing process and central control process according to claim 7, characterized in that, The primary storage leaf specifically refers to: After the material is fed once, it is stored in a primary storage chamber. The storage environment temperature is controlled at 22-26℃, the relative humidity is controlled at 60-65%, and the storage time is controlled at 2-4 hours.

10. The Yunyan dedicated line slim cigarette manufacturing process and central control process according to claim 7, characterized in that, In S40, the secondary processing specifically includes: The material after primary leaf storage is mixed with a second sheet; the material after mixing with the second sheet is then fed a second time.

Images