Method for Setting Moisture Regulation Mechanism of Imported Cartoned Cut Tobacco

Abstract

The present invention discloses a method for setting an external boxed cut tobacco moisture control mechanism. The main design concept of the present invention is to form a targeted moisture control processing mechanism for specific problems arising from the south-to-north transportation mode of cigarette raw materials. That is, after the incoming materials, by detecting the control factors of the external cigarette boxes of a certain brand batch, the corresponding warming and humidifying storage plan can be efficiently determined. Specifically, the external cigarette boxes are subjected to warming and humidifying treatment without unpacking in the constant temperature and humidity area of the silk-making workshop, and combined with the index detection results of the external cut tobacco at different transfer stages, the correlation between the temperature and moisture content changes of the cut tobacco and the unpacking-free storage duration is analyzed and processed, and the targeted warming and humidifying storage condition parameters are clarified, thereby effectively avoiding the significant fluctuation of the cut tobacco index after the south-to-north transportation into the factory, and further improving the moisture qualification rate of the finished cigarettes.

Description

Technical Field

[0001] The present invention relates to the field of cigarette manufacturing, and particularly to a method for setting a moisture control mechanism for externally sourced boxed cut tobacco. Background Art

[0002] In this industry, some cigarette companies adopt a production mode of sending cut tobacco from southern factories (such as in Yunnan Province) to northern factories (such as in Inner Mongolia Autonomous Region). This production method is more sensitive to the impact of logistics distribution and seasonal climate. After the cut tobacco is delivered to the northern factory (usually referred to as externally sourced boxed cut tobacco, externally sourced tobacco boxes in the industry), both the temperature and moisture of the cut tobacco will change. Especially in winter, the temperature of the cut tobacco reaching the northern factory is relatively low. If it is directly unpacked, turned over in the box, and put into the cabinet for use, not only will the breakage be large, but also the moisture will change violently, which is very unfavorable for the moisture control of the finished cigarettes. Summary of the Invention

[0003] In view of the above, the present invention aims to provide a method for setting a moisture control mechanism for externally sourced boxed cut tobacco to solve the aforementioned technical problems.

[0004] The technical solution adopted by the present invention is as follows:

[0005] The present invention provides a method for setting a moisture control mechanism for externally sourced boxed cut tobacco, which includes:

[0006] Conduct a warming and moistening test on the externally sourced boxed cut tobacco based on non-unpacking storage in different constant temperature and humidity areas to obtain warming and moistening storage parameters;

[0007] Detect and analyze the temperature and humidity of the externally sourced cut tobacco entering the workshop silk warehouse according to batches to obtain the first analysis data;

[0008] Detect and analyze the temperature and humidity of the externally sourced cut tobacco entering the silk cabinet from the workshop silk warehouse according to batches to obtain the second analysis data;

[0009] Detect and analyze the moisture content of the externally sourced cut tobacco output from the silk cabinet to the cut tobacco rolling process according to batches to obtain the third analysis data;

[0010] Integrate the batch information, the first analysis data, the second analysis data, and the third analysis data, and conduct a correlation analysis according to the warming and moistening storage parameters;

[0011] According to the results of the correlation analysis, determine the control factors, and optimize the warming and moistening storage parameters of the externally sourced boxed cut tobacco in the constant temperature and humidity area based on the control factors.

[0012] In at least one possible implementation manner, the obtaining of the warming and moistening storage parameters includes:

[0013] Store several cases of foreign boxed cut tobacco unopened in at least two different constant temperature and humidity environments respectively;

[0014] According to the preset time gradient in days, sample the unopened foreign boxed cut tobacco day by day and detect the temperature and humidity indicators of the foreign boxed cut tobacco;

[0015] Based on the index values obtained from the sampling and detection, obtain the change trends of the temperature and humidity indicators of the foreign boxed cut tobacco in different constant temperature and humidity regions;

[0016] Based on the change trends in different constant temperature and humidity regions, obtain the warming and moisture regain storage parameters.

[0017] In at least one possible implementation, the temperature and humidity indicators include the surface moisture content, core moisture content, surface temperature, and core temperature of the foreign boxed cut tobacco.

[0018] In at least one possible implementation, the maximum value of the time gradient is determined by the moisture content states of the surface and core of the foreign boxed cut tobacco, and the relationship between the core temperature and the ambient temperature.

[0019] In at least one possible implementation, the warming and moisture regain storage parameters include: the upper limit of the unopened storage time and the relatively optimal storage duration.

[0020] In at least one possible implementation, the optimization of the warming and moisture regain storage parameters of the foreign boxed cut tobacco in the constant temperature and humidity region includes:

[0021] Determine the relationship between the core temperature of the foreign boxed cut tobacco and the unopened storage duration through the change trend of the moisture content of different batches of cut tobacco.

[0022] Compared with the prior art, the main design concept of the present invention is that, aiming at the specific problems generated by the mode of transporting southern cut tobacco to the north for cigarette production, the present invention forms a targeted moisture control mechanism. That is, after the incoming materials, by detecting the control factors of foreign cigarette boxes of a certain brand batch, the corresponding warming and moisture regain storage plan can be efficiently determined. Specifically, the foreign cigarette boxes are subjected to unopened warming and moisture regain treatment in the constant temperature and humidity region of the silk-making workshop, and combined with the index detection results of the foreign cut tobacco at different transfer stages, the correlation between the changes in cut tobacco temperature and moisture content and the unopened storage duration is analyzed and processed, and the targeted warming and moisture regain storage condition parameters are clarified, thus effectively avoiding the problem of significant fluctuations in cut tobacco indicators after southern cut tobacco is transported to the north and then improving the moisture qualification rate of finished cigarettes. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described below in conjunction with the drawings, where:

[0024] Figure 1 It is a schematic flowchart of a method for setting a moisture control mechanism for imported boxed cut tobacco provided by an embodiment of the present invention. Detailed implementation manners

[0025] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where 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 by referring to the drawings are exemplary and are only used to explain the present invention, and cannot be construed as a limitation to the present invention.

[0026] The present invention proposes an embodiment of a method for setting a moisture control mechanism for imported boxed cut tobacco. Specifically, as Figure 1 shown, which includes:

[0027] Step S1: Conduct a warming and rehumidifying test on imported boxed cut tobacco based on non-opening storage in different constant temperature and humidity areas, and obtain the warming and rehumidifying storage parameters.

[0028] Specifically, it may include the following steps:

[0029] Step S11: Store several boxes of imported boxed cut tobacco without opening in at least two different constant temperature and humidity environments respectively.

[0030] For example, store several boxes (such as 12 boxes) of imported boxed cut tobacco of a given brand (such as Brand A) without opening in a constant temperature and humidity cut tobacco flavoring room (ambient temperature 26±2°C, ambient humidity 62±5%) and a cut tobacco storage house (ambient temperature 26±1°C, ambient humidity 62±1%) respectively, and these imported tobacco boxes used for correlation test analysis can be numbered.

[0031] Step S12: Take samples of the imported boxed cut tobacco stored without opening day by day according to a preset time gradient in days, and detect the temperature and humidity indexes of the imported boxed cut tobacco.

[0032] In actual operation, the moisture content of the surface cut tobacco, the moisture content of the core (also called the core) cut tobacco, the surface temperature and the core temperature can be specifically detected.

[0033] Regarding the setting method of the time gradient, it includes: taking the first sample on the 0th day starting from the representation of the incoming material, and then taking samples on the 3rd, 4th, 5th, 6th, 7th, 8th... days, and the setting of the maximum value of the time gradient parameter depends on the moisture content of each part of the imported tobacco box tending to be stable, that is, there is no significant increase or no significant decrease trend, and the core temperature is consistent with the ambient temperature (which can be quantitatively judged by a preset index fluctuation threshold during implementation).

[0034] Step S13: According to the above daily sampling and recording the corresponding index values (which can be made in the form of a record table), the changing trends of the temperature and humidity indexes of the incoming boxed cut tobacco in different constant temperature and humidity areas can be obtained, where the changing trends are in units of days.

[0035] For example, after measuring the relevant indexes of Brand A, the following characteristics are obtained:

[0036] (1) The skin temperature and core temperature of the incoming cigarette boxes, after being stored unopened for three to four days, rapidly increase from the original 18°C and 0.6°C to about 25°C, and are consistent with the environmental temperature in the cut tobacco flavoring room five days later.

[0037] (2) The skin moisture content of the incoming cigarette boxes is relatively low, which is about 0.3% lower than the core moisture content. After being stored unopened for three days, it shows an obvious downward trend, with a decrease amplitude of about 0.6%. After being stored unopened for five days, the moisture content gradually reaches a relatively normal level. There are significant fluctuations after six to seven days, with a fluctuation amplitude of 0.5%, and it is still on an upward trend on the eighth day.

[0038] (3) The core moisture content of the incoming cigarette boxes is relatively high. After being stored unopened for four days, its moisture content remains relatively stable, starts to increase slightly on the fifth day, reaches the peak on the seventh day, and starts to decline on the eighth day.

[0039] Based on the above index change characteristics, the warming and moisture regain storage parameters under the condition of storing unopened in the cut tobacco flavoring room can be obtained: under the condition of an initial core temperature of 0°C (measured as 0.6°C), the moisture content and core temperature of Brand A incoming boxed cut tobacco can meet the requirements for normal use after being stored for three to four days. However, the moisture content increases rapidly after being stored for more than five days. Further, according to the actual rolling process requirements of the finished products of a specific brand, the upper limit of the storage duration for warming and moisture regain without opening in the cut tobacco flavoring room can be finally determined to be no more than four days, and the optimal storage duration is three days. In addition, the storage period of the cut tobacco in the cabinet can be guided based on this parameter, that is, the storage period of the cut tobacco in the cabinet should be shortened as much as possible.

[0040] Another example, after measuring the relevant indexes of Brand A, the following characteristics are obtained:

[0041] (1) In the environment of the cut tobacco storage house, the skin and core temperatures of the incoming cigarette boxes rapidly increase from the original 16°C and 0.5°C to about 25°C after being stored unopened for three to four days, and are consistent with the environmental temperature in the cut tobacco storage house five days later.

[0042] (2) The moisture content of the epidermis is about 0.2% lower than that of the core. After being stored for three to four days, it shows an obvious downward trend, with a decrease of about 0.7%. After being stored for five days, the moisture content gradually reaches a relatively normal level. After six to seven days, there are significant fluctuations, with a fluctuation range of 1.0%. It gradually drops on the eighth day.

[0043] (3) The moisture content of the core is relatively high. After being stored unopened for three days, the moisture content remains relatively stable. It starts to rise slightly from the fifth day and reaches the peak on the seventh day, and then starts to drop on the eighth day.

[0044] Based on the above characteristics of the index changes, the warming and moisturizing storage parameters under the condition of unopened storage in the silk storage house can be obtained: under the condition of an initial core temperature of 0°C (measured as 0.6°C), the moisture content of the cut tobacco and the core temperature of the externally boxed cut tobacco of Brand A can meet the requirements for normal use after being stored for three to four days. If the storage time exceeds five days, the moisture content increases rapidly. Further, according to the actual rolling process requirements of the finished products of a specific brand, the upper limit of the storage time for warming and moisturizing without opening the package in the stem flavoring room can be finally determined to be no more than four days, and the best storage time is three days. In addition, the storage period of the cut tobacco in the cabinet can be guided based on this parameter, that is, the storage period of the cut tobacco in the cabinet should be shortened as much as possible.

[0045] Step S14: Obtain the warming and moisturizing storage parameters based on the change trends in different constant temperature and humidity areas.

[0046] After comprehensively considering the warming and moisturizing storage parameters obtained in different constant temperature and humidity areas, the target conclusion can be obtained: To ensure the stability of the moisture content of the finished cut tobacco of Brand A, when the core temperature is 0°C, the best time range for unopened storage during the warming measures for the externally boxed cut tobacco of Brand A in the stem flavoring room and the silk storage house is 3 - 4 days. According to the actual rolling process requirements of the finished products of Brand A, the upper limit of the storage time is 4 days, and the most suitable storage time is 3 days. At the same time, the storage period of the cut tobacco in the cabinet (subsequently entering the silk cabinet) needs to be shortened. Of course, in actual operation, relevant verification tests can continue with the increase of the environmental temperature. The present invention does not elaborate and limit this.

[0047] Step S2: Detect and analyze the temperature, humidity and status of the externally sourced cut tobacco entering the silk warehouse in the workshop according to batches to obtain the first analysis data;

[0048] Under the condition of stable temperature and humidity in the feeding environment (from the tobacco leaf warehouse to the workshop silk warehouse), the skin temperature varies significantly with the weather. The difference between the core temperature and the skin temperature is within the range of (3 - 9)°C. The higher the skin temperature, the higher the core temperature. The skin moisture content is between (13 - 16)%, which belongs to a relatively high range. The main reason is the difference in environmental temperature. When entering from a low-temperature environment to a high-temperature environment, the hygroscopicity increases, resulting in a relatively high moisture content. The core moisture content has high stability, all within the range of (12.60 - 13.00)%, which is basically the same as the original moisture content of the cut tobacco (12.80 - 13.10)%.

[0049] Step S3: According to batches, detect and analyze the temperature and humidity and status of the foreign cut tobacco entering the silk cabinet (also known as entering the cabinet) from the workshop silk warehouse to obtain the second analysis data;

[0050] Under the condition of stable environmental temperature and humidity during cabinet entry, when the storage time without unpacking for warming and moisture regain is between (28 - 80) hours, the difference between the core temperature and the skin temperature is within the range of below 3°C. The skin moisture content increases with the increase of the storage time without unpacking. The core moisture content shows a significant increasing trend after 60 hours. From this rule, it can be seen that when the storage time of the foreign tobacco box without unpacking is about 30 hours, the consistency between the skin temperature and the core temperature can be achieved (this data is the value when the external ambient temperature is about 5°C).

[0051] Step S4: According to batches, detect and analyze the moisture content and status of the foreign cut tobacco output from the silk cabinet to the cigarette making cut tobacco process (also known as leaving the cabinet) to obtain the third analysis data;

[0052] The measured average moisture content at the outlet of the silk cabinet is 13.05%, and the average moisture content of the finished product is 12.73%, a decrease of 0.32%. The change in the above-mentioned storage time has led to a significant downward trend in the moisture content of the finished product, a decrease of 0.13% compared with the historical data (such as the average moisture content of the finished product from January 2021 to February 2022 was 12.86%). It is 0.13% higher than the standard upper limit value of 12.60%. The main reason for its relatively high moisture content is that the moisture content of the foreign cut tobacco is relatively high (within the range of 12.85% - 13.05%), and it is still relatively high compared with the established moisture content for flavoring of first-class cigarettes of 12.5% - 12.7%, resulting in an excessive moisture content.

[0053] Step S5: Integrate batch information, the first analysis data, the second analysis data, and the third analysis data, and perform a correlation analysis according to the warming and moisture regain storage parameters;

[0054] The concept of this step is to comprehensively analyze the changing trends of the moisture content of the foreign cut tobacco at each stage as described above, and perform a correlation analysis according to the duration of storage without unpacking for warming and moisture regain. In a certain example, the analysis results are shown as follows:

[0055] (1) Batch a, stored unopened for 79 hours. The moisture content of the core increased from 12.72% to 13.81%, with a growth rate of 1.09%, indicating that the unopened storage time is too long. The core temperature was 4.2°C.

[0056] (2) Batch b, stored unopened for 69.4 hours. The moisture content of the core increased from 12.65% to 13.25%, with a growth rate of 0.6%, indicating that the unopened storage time is too long. The core temperature was 8.2°C.

[0057] (3) Batch c, stored unopened for 53.3 hours. The moisture content of the core decreased from 12.88% to 12.73%, remaining basically the same. The core temperature was 2°C.

[0058] (4) Batch d, stored unopened for 50.5 hours. The moisture content of the core changed from 12.97% to 12.97%, remaining the same. The core temperature was 2.2°C.

[0059] (5) Batch e, stored unopened for 32.3 hours. The moisture content of the core increased from 12.79% to 12.96%, remaining basically the same. The core temperature was 8°C.

[0060] (6) Batch f, stored unopened for 28.5 hours. The moisture content of the core increased from 12.80% to 13.22%, with a significant increase of 0.42%. The core temperature was 21.8°C. Although the unopened storage time was short, the core temperature was high and the moisture content increased significantly.

[0061] Step S6: According to the results of the correlation analysis, determine the control factors, and optimize the warming and moisture regain storage parameters of the incoming boxed cut tobacco in the constant temperature and humidity area based on the control factors.

[0062] Specifically, the relationship between the core temperature of the incoming boxed cut tobacco (i.e., the control factor, and the core moisture content as known from the previous text) and the unopened storage duration can be determined through the moisture content change law of different batches of cut tobacco. Through actual tests, the two show a negative correlation. The higher the core temperature, the shorter the unopened storage time, and the lower the core temperature, the longer the unopened storage time. The following conclusions can be drawn from the example test results for reference:

[0063] When the core temperature of the incoming boxed cut tobacco ≤ 3°C, it can be stored in the stem flavoring room and cut tobacco storage house in the silk reprocessing workshop, and the storage time can be optimized to (65 ± 10) hours;

[0064] When 3°C < core temperature ≤ 12°C, it can be stored in the stem flavoring room and cut tobacco storage house in the silk reprocessing workshop, and the storage time can be optimized to (25 ± 6) hours;

[0065] When the core temperature of the incoming materials exceeds 12°C, there is no need to warm up and humidify in the cut tobacco flavoring room or the silk storage house. It can be directly stored temporarily in the preparation room or the logistics warehouse and directly put into the cabinet for subsequent use according to production requirements at any time.

[0066] In summary, the main design concept of the present invention is to form a targeted moisture control mechanism for specific problems arising from the south-north transportation mode of cigarette raw materials. That is, after the incoming materials, by detecting the control factors of the incoming cigarette boxes of a certain brand batch, the corresponding warming-up, humidifying and storage plan can be efficiently determined. Specifically, the incoming cigarette boxes are subjected to warming-up and humidifying treatment without unpacking in the constant temperature and humidity area of the silk-making workshop. Combining with the index detection results of the incoming cut tobacco at different transfer stages, the correlation between the temperature and moisture content changes of the cut tobacco and the unpacked storage duration is analyzed and processed, and the targeted warming-up, humidifying and storage condition parameters are determined, thus effectively avoiding the significant fluctuations in the cut tobacco indexes after the south-north transportation of cut tobacco into the factory, and further improving the moisture qualification rate of the finished cigarettes.

[0067] In the embodiments of the present invention, "at least one" means one or more, and "a plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent the situation of A existing alone, A and B existing simultaneously, and B existing alone. Where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the front and back associated objects. "At least one of the following" and its similar expressions refer to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, and c can represent: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, and c can be single or multiple.

[0068] The structure, features and effects of the present invention have been described in detail based on the embodiments shown in the drawings above. However, the above are only the preferred embodiments of the present invention. It should be noted that for the technical features involved in the above embodiments and their preferred modes, those skilled in the art can reasonably combine and match them into a variety of equivalent solutions without departing from and without changing the design concept and technical effects of the present invention; therefore, the present invention is not limited to the scope of implementation shown in the drawings. As long as the changes made in accordance with the concept of the present invention or the equivalent embodiments modified into equivalent changes still do not exceed the spirit covered by the description and the drawings, they should all be within the protection scope of the present invention.

Claims

1. A method for setting an external boxed cut tobacco moisture control mechanism, characterized in that, Including: In different constant temperature and humidity areas, conduct a warming and moisture regain test on incoming boxed cut tobacco without unpacking to obtain warming and moisture regain storage parameters, including: storing a number of boxes of incoming boxed cut tobacco without unpacking in at least two different constant temperature and humidity environments respectively; sampling the incoming boxed cut tobacco stored without unpacking day by day according to a preset time gradient in days and detecting the temperature and humidity indexes of the incoming boxed cut tobacco; obtaining the change trend of the temperature and humidity indexes of the incoming boxed cut tobacco in different constant temperature and humidity areas based on the index values detected by sampling; obtaining the warming and moisture regain storage parameters based on the change trend in different constant temperature and humidity areas; Detect the temperature and humidity of the incoming cut tobacco entering the workshop silk warehouse by batch and conduct a status analysis to obtain the first analysis data; Detect the temperature and humidity of the incoming cut tobacco entering the silk cabinet from the workshop silk warehouse by batch and conduct a status analysis to obtain the second analysis data; Detect the moisture content of the incoming cut tobacco output from the silk cabinet to the cigarette making cut tobacco process by batch and conduct a status analysis to obtain the third analysis data; Integrate the batch information, the first analysis data, the second analysis data, and the third analysis data, and conduct a correlation analysis according to the warming and moisture regain storage parameters; Determine the control factor according to the result of the correlation analysis, and optimize the warming and moisture regain storage parameters of the incoming boxed cut tobacco in the constant temperature and humidity area based on the control factor; Among them, the warming and moisture regain storage parameters include: the upper limit of the storage time without unpacking and the relatively optimal storage duration.

2. The method for setting the moisture control mechanism of the incoming boxed cut tobacco according to claim 1, wherein, The temperature and humidity indexes include the surface moisture content, core moisture content, surface temperature, and core temperature of the incoming boxed cut tobacco.

3. The method for setting the moisture control mechanism of the incoming boxed cut tobacco according to claim 2, characterized in that, The maximum value of the time gradient is determined by the moisture content status of the surface and core of the incoming boxed cut tobacco, and the relationship between the core temperature and the ambient temperature.

4. The method for setting the moisture control mechanism of imported boxed cut tobacco according to any one of claims 1 to 3, characterized in that, The optimization of the warming and moisture regain storage parameters of the incoming boxed cut tobacco in the constant temperature and humidity area includes: Determine the relationship between the core temperature of the incoming boxed cut tobacco and the storage duration without unpacking through the change trend of the moisture content of different batches of cut tobacco.

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