Papermaking process reconstituted tobacco equipment parameter monitoring method and system based on sensory quality score

Abstract

The invention relates to the technical field of computer systems, in particular to a method and system for monitoring technological parameters of paper-making reconstituted tobacco based on sensory quality scores. The method comprises the steps that the sensory quality score value of reconstituted tobacco to be detected is obtained, and the sensory quality score value is a predicted value calculated based on reconstituted tobacco sensory quality score associated process parameters; the reconstituted tobacco sensory quality score associated process parameters comprise at least one of coating water content, coating liquid temperature, absolute dry quantitation before coating, absolute dry quantitation after coating, coating rate, drying temperature, finished product water content and coating liquid concentration; when it is detected that the sensory quality score value is not in the normal value interval, abnormal target reconstituted tobacco technological parameters of the reconstituted tobacco are determined; and outputting abnormal target reconstituted tobacco equipment parameters corresponding to the abnormal target reconstituted tobacco process parameters. The method aims at solving the problem of how to improve the production stability of the paper-making reconstituted tobacco.

Description

Technical Field

[0001] The present invention relates to the technical field of computer systems, and in particular to a method and system for monitoring parameters of papermaking reconstituted tobacco equipment based on sensory quality scoring. Background Art

[0002] Reconstituted tobacco is an important component of the tobacco industry, and its quality directly affects the quality of tobacco products. The national standard GB 5606.4-2005 "Cigarettes Part 4: Sensory Technical Requirements" stipulates several rules for judging the sensory quality of cigarettes, and evaluates the sensory quality of cigarettes from aspects such as appearance, smoke, and aroma.

[0003] However, manual smoking evaluation usually involves sampling several cigarettes from a production batch, testing the parameters related to the sensory quality of the cigarettes using chemical experiments, and then combining the subjective judgment of professional smoking testers on the appearance, smoke, aroma, etc. to score the sensory quality of the cigarettes. If the score is unqualified, all cigarettes in the production batch will be judged as unqualified.

[0004] Related technical solution 1, Chinese patent publication number CN117422330A discloses a method for evaluating the quality of ordinary cigarette tobacco, which discloses the following indicators for evaluating the quality of tobacco: 1. Leaf quality indicators (including leaf moisture content, leaf filling value, leaf whole rate and leaf broken rate); 2. Cigarette physical indicators (including cigarette unit weight, cigarette unit weight standard deviation, cigarette draw resistance, cigarette draw resistance standard deviation, cigarette filter ventilation rate and cigarette filter ventilation rate standard deviation); 3. Smoke indicators (including tar release extremes, carbon monoxide release extremes and smoke nicotine release extremes); 4. Sensory indicators (including gloss, aroma, harmony, miscellaneous smell, irritation and aftertaste). The score of each indicator corresponds to a different weight. The final comprehensive evaluation score of tobacco is obtained by multiplying each indicator by its own weight and adding them together.

[0005] Related technical solution 2, Chinese patent publication number CN110458474A discloses a comprehensive evaluation method for the physical quality of cigarette rolling, which discloses the following 7 indicators for evaluating the quality of cut tobacco: support weight, draw resistance, hardness, ventilation rate, end cut tobacco, dust content and empty head rate. Through data collection, data standardization processing, and principal component analysis of standardized data, a batch of cigarette comprehensive physical quality evaluation model is established, and the cigarette rolling quality is quantitatively scored through the evaluation model.

[0006] However, the above-mentioned related technical solutions all focus on analyzing the indicators of the tobacco itself, and do not involve the research on the indicators and / or equipment process parameters that are correlated with the sensory quality of the reconstituted tobacco in the preparation process of cigarettes, especially the preparation process of reconstituted tobacco leaves. In addition, the above-mentioned technical solutions can only collect samples for testing after a large number of products in the same batch are prepared, and it is impossible to monitor the quality control of the reconstituted tobacco leaves in real time during the preparation process.

[0007] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0008] The main purpose of the present invention is to provide a method for monitoring parameters of papermaking reconstituted tobacco equipment based on sensory quality scoring, aiming to solve the problem of how to improve the stability of finished products of papermaking reconstituted tobacco.

[0009] To achieve the above object, the present invention provides a method for monitoring parameters of papermaking reconstituted tobacco equipment based on sensory quality scoring, the method comprising:

[0010] Obtaining a sensory quality score value of the reconstituted tobacco to be tested, wherein the sensory quality score value is a predicted value calculated based on process parameters associated with the sensory quality score of the reconstituted tobacco, and the process parameters associated with the sensory quality score of the reconstituted tobacco include at least one of the following: moisture content in the coating, temperature of the coating liquid, absolute dry weight before coating, absolute dry weight after coating, coating rate, drying temperature, moisture content in the finished product, and concentration of the coating liquid;

[0011] When it is detected that the sensory quality score value is not within the normal value range, determining the abnormal target reconstituted tobacco process parameter of the reconstituted tobacco;

[0012] Output the abnormal target reconstituted tobacco equipment parameters corresponding to the abnormal target reconstituted tobacco process parameters.

[0013] Optionally, the abnormal target reconstituted tobacco process parameters include at least one of the following: coating moisture, coating liquid temperature, absolute dry weight before coating, absolute dry weight after coating, coating rate, drying temperature, finished product moisture and coating liquid concentration. The output of the abnormal target reconstituted tobacco equipment parameters corresponding to the abnormal target reconstituted tobacco process parameters specifically includes:

[0014] Obtaining target reconstituted tobacco equipment parameters corresponding to the abnormal target reconstituted tobacco process parameters;

[0015] Detecting whether each of the target reconstituted tobacco equipment parameters is within the corresponding preset normal value range;

[0016] If not, the target reconstituted tobacco equipment parameters that are not within the preset normal value range are determined as the abnormal target reconstituted tobacco equipment parameters and output.

[0017] Optionally, when the abnormal target reconstituted tobacco process parameter is the coating moisture, the corresponding first target reconstituted tobacco equipment parameter includes at least one of the sizing amount, the vacuum degree of the vacuum dehydration box, the vacuum pressing pressure, the hot air temperature of the Yankee hood, the Yankee cylinder temperature, the small cylinder group temperature and the uniformity of the sheet base.

[0018] Optionally, when the abnormal target reconstituted tobacco process parameter is the coating liquid temperature, the corresponding second target reconstituted tobacco equipment parameter includes the steam usage of the heat exchanger and / or the coating liquid heating time.

[0019] Optionally, when the abnormal target reconstituted tobacco process parameter is the absolute dry weight before coating, the corresponding third target reconstituted tobacco equipment parameter includes at least one of sizing amount, retention rate, and sheet base uniformity.

[0020] Optionally, when the abnormal target reconstituted tobacco process parameter is the absolute dry weight after coating, the corresponding fourth target reconstituted tobacco equipment parameter includes at least one of the coating liquid concentration, coating roller pressure, additive usage, absolute dry weight before coating, paper machine speed, coating liquid temperature and base absorption performance value.

[0021] Optionally, when the abnormal target reconstituted tobacco process parameter is the coating rate, the corresponding fifth target reconstituted tobacco equipment parameter includes at least one of the absolute dry weight before coating, the absolute dry weight after coating, the coating roller pressure, the coating liquid concentration, the paper machine speed and the base absorption performance value.

[0022] Optionally, when the abnormal target reconstituted tobacco process parameter is the drying temperature, the corresponding sixth target reconstituted tobacco equipment parameter includes at least one of the slope spray flow rate of the coated cigarettes, the amount of hot air used, the condensate discharge, the dehumidification fan power, the number of tunnel dryer sections used, and the paper machine speed.

[0023] Optionally, when the abnormal target reconstituted tobacco process parameter is the finished product moisture, the corresponding seventh target reconstituted tobacco equipment parameter includes at least one of drying temperature, rotary dryer temperature and paper machine speed.

[0024] Optionally, when the abnormal target reconstituted tobacco process parameter is the coating liquid concentration, the corresponding eighth target reconstituted tobacco equipment parameter includes at least one of paper machine speed, coating liquid preparation concentration, cycle time, coating liquid reflux rate and coating liquid formula.

[0025] Optionally, the step of determining abnormal target reconstituted tobacco process parameters of the reconstituted tobacco includes:

[0026] Obtaining target process parameters of the reconstituted tobacco to be tested, wherein the target process parameters include at least one of the moisture content of the coating, the temperature of the coating liquid, the absolute dry weight before coating, the absolute dry weight after coating, the coating rate, the drying temperature, and the moisture content of the finished product and the concentration of the coating liquid;

[0027] Determine whether the target process parameter is in a preset process parameter range, wherein the preset process parameter range includes at least one of a standard coating moisture range, a standard coating liquid temperature range, a standard coating moisture range, a standard absolute dry weight range before coating, a standard absolute dry weight range after coating, a standard coating rate range, a standard drying temperature range, a standard finished product moisture range, and a standard coating liquid concentration range;

[0028] If not, the target process parameter is determined as the abnormal target reconstituted tobacco process parameter.

[0029] Optionally, the standard coating moisture range is 20.0%±3.0%.

[0030] Optionally, the standard coating liquid temperature range is 50.0°C±5.0°C.

[0031] Optionally, the standard absolute dry weight range before coating is 45.0 g / m 2 ±5.0g / m 2 .

[0032] Optionally, the standard absolute dry weight range after coating is 95.0 g / m 2 ±10.0g / m 2 .

[0033] Optionally, the standard coating rate interval is 42.0%±5.0%.

[0034] Optionally, the standard drying temperature interval includes at least one of the first tunnel temperature interval, the second tunnel temperature interval, the third tunnel temperature interval, the fourth tunnel temperature interval and the fifth tunnel temperature interval, the first tunnel temperature interval is 80.0℃±3.0℃, the second tunnel temperature interval is 90.0℃±3.0℃, the third tunnel temperature interval is 100.0℃±3.0℃, the fourth tunnel temperature interval is 105.0℃±3.0℃, and the fifth tunnel temperature interval is 110.0℃±3.0℃.

[0035] Optionally, the standard finished product moisture range is 10.0%±2.0%.

[0036] Optionally, the concentration range of the standard coating solution is 60.0±10.0%.

[0037] In addition, to achieve the above-mentioned objectives, the present invention also provides a papermaking process reconstituted tobacco system, the papermaking process reconstituted tobacco system comprising: a memory, a processor, and a papermaking process reconstituted tobacco process parameter monitoring program based on sensory quality scoring stored in the memory and executable on the processor, wherein the papermaking process reconstituted tobacco process parameter monitoring program based on sensory quality scoring implements the steps of the papermaking process reconstituted tobacco process parameter monitoring method based on sensory quality scoring as described above when executed by the processor.

[0038] This application has at least the following beneficial effects:

[0039] 1. The paper-making process of reconstituted tobacco leaves has a strong correlation with the sensory quality score value in the production process of reconstituted tobacco leaves, and the equipment parameters associated with the reconstituted tobacco leaf process parameters are explored, so as to realize the correlation between the sensory quality score value, the reconstituted tobacco leaf process parameters and the equipment parameters;

[0040] 2. Convert the sensory quality score obtained by traditional manual smoking evaluation into a real-time calculation by the system based on process parameters, so as to realize the efficient application of sensory quality score in the industrial production of papermaking reconstituted tobacco leaves;

[0041] 3. Monitor various equipment parameters in the production process of paper-making reconstituted tobacco leaves through sensory quality scores. When the sensory quality score of the reconstituted tobacco leaves to be tested as the test sample is abnormal, determine which reconstituted tobacco leaf process parameter is abnormal, and the equipment parameters related to the abnormal reconstituted tobacco leaf process parameter, so as to achieve real-time monitoring of key parameters affecting the sensory quality score in the production process of paper-making reconstituted tobacco leaves, and provide timely feedback when abnormalities occur, so as to ensure the product stability in the production process of paper-making reconstituted tobacco leaves;

[0042] 4. Based on the reconstituted tobacco process parameters that have a strong correlation with the sensory quality score values, the normal standard ranges corresponding to these reconstituted tobacco process parameters were further explored. Reconstituted tobacco process parameters that exceeded the normal standard range were deemed to be reconstituted tobacco process parameters that may reduce the sensory quality score values, thereby ensuring product stability in the papermaking reconstituted tobacco production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the architecture of the hardware operating environment of the papermaking process reconstituted tobacco system involved in the embodiment of the present invention;

[0044] Figure 2 It is a flow chart of a first embodiment of a method for monitoring parameters of a papermaking process reconstituted tobacco leaf equipment based on sensory quality scoring according to the present invention;

[0045] Figure 3It is a schematic diagram of a fitting curve of coating moisture and sensory evaluation score involved in an embodiment of the present invention;

[0046] Figure 4 It is a schematic diagram of a fitting curve of the coating solution concentration and the sensory evaluation score involved in the embodiment of the present invention;

[0047] Figure 5 It is a schematic diagram of a fitting curve of the coating liquid temperature and the sensory evaluation score involved in an embodiment of the present invention;

[0048] FIG. 6 (1#-5#) are schematic diagrams of fitting curves of various drying temperatures and sensory evaluation scores involved in embodiments of the present invention;

[0049] Figure 7 It is a schematic diagram of a fitting curve of the coating rate and the sensory evaluation score involved in an embodiment of the present invention;

[0050] Figure 8 It is a schematic diagram of the fitting curve of the absolute dry weight and sensory evaluation score before coating involved in the embodiment of the present invention;

[0051] Fig. 9 It is a schematic diagram of the fitting curve of the absolute dry weight and sensory evaluation score after coating involved in the embodiment of the present invention;

[0052] Fig.10 A schematic diagram of a fitting curve of the moisture content and sensory evaluation score of a finished product according to an embodiment of the present invention;

[0053] Fig.11 A schematic diagram of the association between the associated process parameters and the sensory quality scores of reconstituted tobacco leaves selected from the association table according to an embodiment of the present invention;

[0054] Fig.12 It is a flow chart of a second embodiment of a method for monitoring parameters of a papermaking process reconstituted tobacco leaf equipment based on sensory quality scoring according to the present invention;

[0055] Fig.13 It is a flow chart of the third embodiment of the method for monitoring parameters of reconstituted tobacco equipment in a papermaking process based on sensory quality scoring according to the present invention.

[0056] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0057] In order to better understand the above technical solution, exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0058] As an implementation plan, Figure 1 It is a schematic diagram of the architecture of the hardware operating environment of the papermaking reconstituted tobacco system involved in the embodiment of the present invention.

[0059] like Figure 1 As shown, the papermaking method reconstituted tobacco leaf system may include: a processor 1001, such as a CPU, a memory 1005, a user interface 1003, a network interface 1004, and a communication bus 1002. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1005 may be a high-speed RAM memory, or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0060] Those skilled in the art will understand that Figure 1 The architecture of the reconstituted tobacco system for papermaking shown in the figure does not constitute a limitation on the reconstituted tobacco system for papermaking, and may include more or less components than those shown in the figure, or combine certain components, or arrange the components differently.

[0061] like Figure 1 As shown, the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a parameter monitoring program for papermaking process reconstituted tobacco equipment based on sensory quality scoring. Among them, the operating system is a program for managing and controlling the hardware and software resources of the papermaking process reconstituted tobacco system, the parameter monitoring program for papermaking process reconstituted tobacco equipment based on sensory quality scoring, and the operation of other software or programs.

[0062] exist Figure 1In the papermaking reconstituted tobacco system shown, the user interface 1003 is mainly used to connect to the terminal and communicate data with the terminal; the network interface 1004 is mainly used for the background server and communicates data with the background server; the processor 1001 can be used to call the papermaking reconstituted tobacco equipment parameter monitoring program based on sensory quality scoring stored in the memory 1005.

[0063] In this embodiment, the papermaking process reconstituted tobacco system includes: a memory 1005, a processor 1001, and a papermaking process reconstituted tobacco equipment parameter monitoring program based on sensory quality scoring stored in the memory and executable on the processor, wherein:

[0064] When the processor 1001 calls the papermaking process reconstituted tobacco equipment parameter monitoring program based on sensory quality scoring stored in the memory 1005, the following operations are performed:

[0065] Obtaining a sensory quality score value of the reconstituted tobacco to be tested, wherein the sensory quality score value is a predicted value calculated based on process parameters associated with the sensory quality score of the reconstituted tobacco, and the process parameters associated with the sensory quality score of the reconstituted tobacco include at least one of the following: moisture content in the coating, temperature of the coating liquid, absolute dry weight before coating, absolute dry weight after coating, coating rate, drying temperature, moisture content in the finished product, and concentration of the coating liquid;

[0066] When it is detected that the sensory quality score value is not within the normal value range, determining the abnormal target reconstituted tobacco process parameter of the reconstituted tobacco;

[0067] Output the abnormal target reconstituted tobacco equipment parameters corresponding to the abnormal target reconstituted tobacco process parameters.

[0068] When the processor 1001 calls the papermaking process reconstituted tobacco equipment parameter monitoring program based on sensory quality scoring stored in the memory 1005, the following operations are performed:

[0069] Obtaining target reconstituted tobacco equipment parameters corresponding to the abnormal target reconstituted tobacco process parameters;

[0070] Detecting whether each of the target reconstituted tobacco equipment parameters is within the corresponding preset normal value range;

[0071] If not, the target reconstituted tobacco equipment parameters that are not within the preset normal value range are determined as the abnormal target reconstituted tobacco equipment parameters and output.

[0072] When the processor 1001 calls the papermaking process reconstituted tobacco equipment parameter monitoring program based on sensory quality scoring stored in the memory 1005, the following operations are performed:

[0073] Obtaining target process parameters of the reconstituted tobacco to be tested, wherein the target process parameters include at least one of the following: moisture content in coating, coating liquid temperature, absolute dry weight before coating, absolute dry weight after coating, coating rate, drying temperature, finished product moisture content and coating liquid concentration;

[0074] Determine whether the target process parameter is within a preset process parameter range, wherein the preset process parameter range includes at least one of a standard coating moisture range, a standard coating liquid temperature range, a standard absolute dry weight range before coating, a standard absolute dry weight range after coating, a standard coating rate range, a standard drying temperature range, a standard finished product moisture range, and a standard coating liquid concentration range;

[0075] If not, the target process parameter is determined as the abnormal target reconstituted tobacco process parameter.

[0076] Based on the hardware architecture of the above-mentioned papermaking reconstituted tobacco system based on computer system technology, an embodiment of the equipment parameter monitoring method of the papermaking reconstituted tobacco process based on sensory quality scoring of the present invention is proposed.

[0077] First embodiment

[0078] Reference Figure 2 In a first embodiment, the method for monitoring equipment parameters of a papermaking process of reconstituted tobacco leaves based on sensory quality scoring comprises the following steps:

[0079] Step S10, obtaining a sensory quality score value of the reconstituted tobacco to be tested, wherein the sensory quality score value is a predicted value calculated based on the process parameters associated with the sensory quality score of the reconstituted tobacco, and the process parameters associated with the sensory quality score of the reconstituted tobacco include at least one of the following: moisture content in the coating, temperature of the coating liquid, absolute dry weight before coating, absolute dry weight after coating, coating rate, drying temperature, moisture content in the finished product, and concentration of the coating liquid;

[0080] In this embodiment, the sensory quality score of the reconstituted tobacco to be tested is firstly obtained.

[0081] It should be noted that the reconstituted tobacco leaves to be tested refer to the reconstituted tobacco leaves that have gone through the reconstituted tobacco process and are waiting to be tested to see if their quality meets the sensory quality standards.

[0082] Optionally, the reconstituted tobacco leaves to be tested can be sampled from a product batch previously produced in the production batch, as the reconstituted tobacco leaves to be tested.

[0083] It should be noted that the sensory quality score is a predicted value calculated based on the process parameters associated with the sensory quality score of reconstituted tobacco leaves, that is, the system calculates the predicted value through a deep learning model based on the process parameters that affect the sensory quality of reconstituted tobacco leaves during the preparation process of papermaking reconstituted tobacco leaves, rather than a score value after manual smoking evaluation.

[0084] In this embodiment, in order to study which parameters are "associated process parameters" that are strongly correlated with the sensory quality score of papermaking reconstituted tobacco, corresponding statistics are performed based on the existing production database Uniformence and combined with the actual sensory quality manual smoking scores, thereby determining the fitting curves in each process parameter.

[0085] For example, see Figure 3-Figure 10 Shown are the fitting curve schematic diagram of coating moisture and sensory evaluation score, the fitting curve schematic diagram of coating liquid concentration and sensory evaluation score, the fitting curve schematic diagram of coating liquid temperature and sensory evaluation score, the fitting curve schematic diagram of drying temperature and sensory evaluation score (1#-5#), the fitting curve schematic diagram of coating rate and sensory evaluation score, the fitting curve schematic diagram of absolute dry weight and sensory evaluation score before coating, the fitting curve schematic diagram of absolute dry weight and sensory evaluation score after coating, and the fitting curve schematic diagram of finished product moisture and sensory evaluation score.

[0086] After determining the fitting curve, Minitab was further used to perform correlation analysis on the key process parameters involved, referring to the corresponding table between the correlation coefficient and the correlation strength shown in Table 1:

[0087] Table 1. Correspondence between correlation coefficient and correlation strength

[0088] Correlation coefficient Strength of association 0.8-10 Very strong correlation 0.6-0.8 Strong correlation 0.4-0.6 Moderately strong correlation 0.2-0.4 Weak correlation 0.0-0.2 Very weak or no correlation

[0089] Based on the relationship table given in Table 1, we screened out parameters with correlation coefficients close to 0.8 or above from various process parameters as process parameters with strong correlation, as shown in Table 2 below:

[0090] Table 2. Correlation coefficients of related process parameters

[0091] Correlation of process parameters Correlation coefficient Coating moisture 0.863 Coating liquid temperature 0.881 Absolutely dry weight before coating 0.809 Absolutely dry weight after coating 0.811 Coating rate 0.874 Drying temperature 0.818 Finished product moisture 0.861 Coating liquid concentration 0.872

[0092] Among them, since the tunnel dryer involved is composed of multiple sections of ovens, there are multiple correlation coefficients of the temperature of the tunnel dryer involved. The correlation coefficient of the tunnel temperature in this example is 0.818, which is the average value.

[0093] Finally, after experimental demonstration, we selected eight process parameters in the production process of reconstituted tobacco leaves by the papermaking method, including moisture content in coating, coating liquid temperature, absolute dry weight before coating, absolute dry weight after coating, coating rate, drying temperature, moisture content of finished product and coating liquid concentration, as related process parameters for the sensory quality score of reconstituted tobacco leaves.

[0094] Furthermore, after determining the associated process parameters, during the papermaking reconstituted tobacco production process, the system collects these process parameters of the reconstituted tobacco in real time, and inputs the process parameters into the trained sensory quality score calculation model constructed based on the deep learning model. The sensory quality score calculation model calculates the sensory quality score values ​​corresponding to these process parameters.

[0095] In order to ensure that the sensory quality score calculated by the model is close enough to the sensory quality score after manual smoking, during the training process, we collected a large number of related process parameters of reconstituted tobacco leaves produced in historical batches, and scored these reconstituted tobacco leaves through manual smoking, and obtained a correlation table covering a large number of related process parameters and sensory quality scores of reconstituted tobacco leaves. Fig.11 This is a schematic diagram of the correlation between the process parameters and sensory quality scores of reconstituted tobacco leaves selected from the correlation table (the specific values ​​of the sensory quality scores are omitted because they involve industrial secrets). Using the data in this correlation table, multiple deep learning training and algorithm optimization were carried out. After testing, the accuracy of the final model reached 93.6%.

[0096] It should be noted that the specific method of constructing the sensory quality score calculation model is not the public focus of this proposal. This proposal aims to explain the correlation between the sensory quality score and the sensory quality process parameters of reconstituted tobacco leaves.

[0097] It can be understood that the process parameters associated with the sensory quality score of reconstituted tobacco leaves in this embodiment, which are considered to have a strong correlation with the sensory quality score, can be any one or more of the above-mentioned eight process parameters.

[0098] For example, in some specific embodiments, the coating water content and coating liquid temperature are selected as the process parameters associated with the sensory quality score of the reconstituted tobacco leaves. Then, only the current coating water content and the current coating liquid temperature of the reconstituted tobacco leaves to be tested collected by the system are used to calculate the corresponding sensory quality score, and other associated process parameters are not used as inputs for calculating the score in the model. The selection of other parameters is similar.

[0099] Step S20, when it is detected that the sensory quality score value is not within the normal value range, determining the abnormal target reconstituted tobacco process parameter of the reconstituted tobacco;

[0100] In this embodiment, after obtaining the sensory quality score value of the reconstituted tobacco leaves to be tested, it is determined whether the numerical range of the sensory quality score value is in the normal value range. When it is detected that the sensory quality score value is not in the normal value range, it is determined that the reconstituted tobacco leaves to be tested have abnormalities in one or more production process links, and the process parameters corresponding to these production process links are taken as target process parameters to be tested for detection, and the target process parameters are further judged as abnormal process parameters, which are used as the target abnormal process parameters.

[0101] It should be noted that the target process parameters correspond to the process parameters associated with the sensory quality score of reconstituted tobacco leaves. For example, the process parameters associated with the sensory quality score of reconstituted tobacco leaves used to calculate the sensory quality score are the absolute dry weight before coating, the absolute dry weight after coating, the coating rate and the drying temperature. The target process parameters correspond to the absolute dry weight before coating, the absolute dry weight after coating, the coating rate and the drying temperature. When performing abnormality troubleshooting, the system only pays attention to whether there are abnormalities in these process parameters.

[0102] Optionally, the normal value range can be set to a fixed value of ±1.0; wherein the fixed value can be set according to the specific processing scenario of the reconstituted tobacco leaves.

[0103] Step S30, outputting the abnormal target reconstituted tobacco equipment parameters corresponding to the abnormal target reconstituted tobacco process parameters.

[0104] In this embodiment, after determining the target abnormal process parameters, each target abnormal process parameter corresponds to one or more target reconstituted tobacco equipment parameters, and the target reconstituted tobacco equipment parameters refer to the parameters corresponding to the equipment that affects the target abnormal process parameters in the papermaking process of reconstituted tobacco, that is, different abnormal process parameters correspond to different target abnormal reconstituted tobacco equipment parameters. The specific abnormal process parameters and the corresponding abnormal target reconstituted tobacco equipment parameters are described in the subsequent embodiments and will not be repeated here.

[0105] Optionally, in some embodiments, the output method can be to display the specific abnormal process parameter name, the equipment information of the abnormal equipment, and the corresponding operating parameter name of the equipment to the background user terminal, and the staff will promptly execute the corresponding emergency handling strategy after receiving this information in the background.

[0106] Optionally, in some embodiments, the output method may also be to send a prompt message to the monitoring end in the process link where the abnormal process parameter is located, so as to alert the supervisor in the process link that the operating parameters of the equipment in the link are abnormal.

[0107] Optionally, in some embodiments, the output method can also be to send the abnormal target reconstituted tobacco equipment parameters to the intelligent control end of the system, and the intelligent control end adjusts the equipment parameters according to the abnormal target reconstituted tobacco equipment parameters to restore it to normal operating parameters.

[0108] In addition, it should be noted that, in the present embodiment, the reason why the quality control stability of the reconstructed tobacco leaves in the papermaking process is monitored by monitoring the value of the sensory quality score, rather than directly monitoring the value of the process parameters associated with the sensory quality score of the reconstructed tobacco leaves is that: there are a variety of quality monitoring indicators in the production process of reconstructed tobacco leaves, but the general monitoring indicators are only for assessing the output grade of the reconstructed tobacco leaves, which does not affect whether the reconstructed tobacco leaves are qualified; and the sensory quality score value is an indicator with a veto nature as to whether the production of the reconstructed tobacco leaves is qualified.

[0109] In the actual papermaking process of reconstituted tobacco leaves, we allow a certain fluctuation in the numerical range of the process parameters associated with the sensory quality score of the reconstituted tobacco leaves. Therefore, even if the values ​​of one or several process parameters associated with the sensory quality score of the reconstituted tobacco leaves in a batch of reconstituted tobacco leaves deviate from the preset numerical range, but do not cause the sensory quality score values ​​monitored by the system to deviate from the normal value range, we still regard the output of this batch of reconstituted tobacco leaves as qualified, and do not regard the fluctuating process parameters associated with the sensory quality score of the reconstituted tobacco leaves as abnormal process parameters. In other words, only when the monitored sensory quality score values ​​are abnormal and the values ​​of the process parameters associated with the sensory quality score of the reconstituted tobacco leaves are also abnormal, will the corresponding process parameters associated with the sensory quality score of the reconstituted tobacco leaves be regarded as abnormal process parameters.

[0110] In the technical solution provided in this embodiment, by obtaining the sensory quality score value of the reconstituted tobacco to be tested calculated based on the process parameters associated with the sensory quality score of the reconstituted tobacco, when the sensory quality score value is abnormal, it is determined which process parameter of the reconstituted tobacco is abnormal, as well as the equipment parameters related to the abnormal process parameter, thereby realizing real-time monitoring of the key parameters affecting the sensory quality score in the production process of papermaking reconstituted tobacco, and timely feedback when an abnormality occurs, thereby ensuring product stability in the production process of papermaking reconstituted tobacco.

[0111] Second embodiment

[0112] Reference Fig.12 In this embodiment, based on the first embodiment, step S30 specifically includes:

[0113] Step S31, obtaining target reconstituted tobacco equipment parameters corresponding to the abnormal target reconstituted tobacco process parameters;

[0114] Step S32, detecting whether each of the target reconstituted tobacco equipment parameters is within the corresponding preset normal value range;

[0115] Step S33: if not, the target reconstituted tobacco equipment parameter that is not within the preset normal value range is determined as the abnormal target reconstituted tobacco equipment parameter and outputted.

[0116] As an optional embodiment, the target process parameter corresponds to one or more target reconstituted tobacco equipment parameters. When the target process parameter is an abnormal target reconstituted tobacco process parameter, the target reconstituted tobacco equipment parameter corresponding to the abnormal target reconstituted tobacco process parameter is obtained, and it is detected whether each target reconstituted tobacco equipment parameter is in its corresponding preset normal numerical range. If the judgment is no, the target reconstituted tobacco equipment parameter that is not in the preset normal numerical range is determined as the abnormal target reconstituted tobacco equipment parameter and output.

[0117] It should be noted that the target reconstituted tobacco equipment parameters are equipment parameters associated with the abnormal target reconstituted tobacco process parameters in the papermaking process of reconstituted tobacco.

[0118] In addition, in some special cases, if the system detects abnormal target reconstituted tobacco process parameters, but the target reconstituted tobacco equipment parameters corresponding to the abnormal target reconstituted tobacco process parameters are all within the normal value range, two situations may occur at this time:

[0119] 1. The process parameters of abnormal target reconstituted tobacco leaves were incorrectly determined;

[0120] 2. Abnormal target reconstituted tobacco equipment parameters corresponding to the process parameters of the target reconstituted tobacco leaves are abnormal, but the system does not recognize it.

[0121] If this situation occurs, the abnormal target reconstituted tobacco process parameters will be marked and output to the backend client for supervisors to check whether the process parameters are abnormal, and / or all target reconstituted tobacco equipment parameters corresponding to the abnormal target reconstituted tobacco process parameters will be output to the backend client for supervisors to check whether the operating parameters of each related equipment are normal.

[0122] In this embodiment, the abnormal target reconstituted tobacco process parameters include at least one of the moisture content at the coating input, coating liquid temperature, absolute dry weight before coating, absolute dry weight after coating, coating rate, drying temperature, finished product moisture content and coating liquid concentration. The target reconstituted tobacco equipment parameters corresponding to each abnormal target reconstituted tobacco process parameter are described below.

[0123] Further, in this embodiment, when the abnormal target reconstituted tobacco process parameter is the coating moisture, the corresponding first target reconstituted tobacco equipment parameter includes at least one of the sizing amount, the vacuum degree of the vacuum dehydration box, the vacuum pressing pressure, the hot air temperature of the Yankee hood, the Yankee cylinder temperature, the small cylinder group temperature and the uniformity of the sheet base.

[0124] The sizing amount refers to the slurry flow rate required to meet the quantitative requirements. Optionally, a flow meter can be set in the slurry pipeline in the coating process, and the system can collect the sizing amount by collecting the flow data on the flow meter. Among them, the sizing amount is positively correlated with the water content of the coating within a certain range, that is, within this range, the more sizing amount, the greater the water content of the coating.

[0125] The main function of the vacuum dehydration box is to remove excess moisture from the reconstituted tobacco slurry to increase the solid content of the slurry. The vacuum degree of the vacuum dehydration box can be directly collected by the system. The vacuum degree is negatively correlated with the moisture content of the coating, that is, the greater the vacuum degree, the smaller the moisture content of the coating.

[0126] The vacuum pressing pressure is the pressure value applied to the slurry by the vacuum dehydration box under a vacuum environment, thereby reducing the moisture content of the slurry. The vacuum pressing pressure can be directly collected by the system, among which the vacuum degree is negatively correlated with the moisture content of the coating, that is, the greater the vacuum pressing pressure, the lower the moisture content of the coating.

[0127] The hot air temperature of the Yankee hood refers to the problem of hot air blowing the paper through the Yankee hood. The Yankee hood is located above the dryer and helps accelerate the drying of the paper by spraying high-temperature hot air. The Yankee cylinder temperature refers to the temperature of the surface of the Yankee cylinder. The Yankee cylinder is heated by steam to evaporate the water when the paper contacts the cylinder surface. The hot air temperature of the Yankee hood can be collected by the system through the temperature sensor set on the Yankee hood, and the Yankee cylinder temperature can be collected by the system through the temperature sensor set on the surface of the Yankee cylinder. Among them, the hot air temperature of the Yankee hood and the temperature of the Yankee cylinder are negatively correlated with the moisture of the coating, that is, the higher the hot air temperature of the Yankee hood and the temperature of the Yankee cylinder, the lower the moisture of the coating.

[0128] The temperature of the small cylinder group refers to the surface temperature of the small diameter drying cylinder (also called the small cylinder group). The temperature of the small cylinder group can be collected by the system through a temperature sensor set on the surface of the small cylinder group. Among them, the vacuum degree is negatively correlated with the moisture of the incoming coating, that is, the greater the temperature pressure of the small cylinder group, the smaller the moisture of the incoming coating.

[0129] The uniformity of the sheet base refers to the quantitative value of the consistency of the sheet base material of the reconstituted tobacco leaf on the entire paper web. The uniformity of the sheet base is monitored in real time by a horizontal scanning frame and adjusted in linkage by the quality control system. Among them, the uniformity of the sheet base will affect the fluctuation of the moisture content of the coating. The better the uniformity, the smaller the fluctuation of the moisture content of the coating.

[0130] When an abnormality is detected in the value of the moisture content entering the coating, based on the first target reconstructed tobacco equipment parameters mentioned above and the positive / negative correlation between these operating parameters and the moisture content entering the coating, it is detected whether the first target reconstructed tobacco equipment parameters are too large / too small, and when it is found that the first target reconstructed tobacco equipment parameters are too large / too small, the parameters are quickly adjusted to regulate the amount of moisture content entering the coating of the papermaking reconstructed tobacco.

[0131] It is understandable that since the changes in the parameters of the above-mentioned first target reconstituted tobacco equipment will affect the moisture content of the coating, the equipment parameters are adjusted when the moisture content of the coating is abnormal, which can be single-parameter adjustment or multi-parameter comprehensive adjustment.

[0132] For example, when the moisture content of the reconstituted tobacco leaves entering the coating is higher than the normal range, the hot air temperature of the Yankee hood can be increased to reduce the moisture content of the reconstituted tobacco leaves entering the coating. The hot air temperature of the Yankee hood and the temperature of the small cylinder group can also be increased at the same time to combine adjustments to reduce the moisture content of the reconstituted tobacco leaves entering the coating, etc.

[0133] Further, in this embodiment, when the abnormal target reconstituted tobacco process parameter is the coating liquid temperature, the corresponding second target reconstituted tobacco equipment parameter includes the steam usage of the heat exchanger and / or the coating liquid heating time.

[0134] The steam consumption of the heat exchanger refers to the amount of steam required by the heat exchanger used to heat the coating liquid. The steam consumption data can be directly collected through the built-in steam flow monitoring module. The steam consumption is positively correlated with the coating liquid temperature.

[0135] The coating liquid heating time refers to the time required to heat the coating liquid to the temperature required by the process. This operating parameter is a collected value. The coating liquid heating time is positively correlated with the coating liquid temperature.

[0136] When an abnormal value of the coating liquid temperature is detected, based on the above-mentioned equipment parameters and the positive / negative correlation between these operating parameters and the coating liquid temperature, it is detected whether the above-mentioned second target reconstituted tobacco equipment parameters are too large / too small, and when it is found that the second target reconstituted tobacco equipment parameters are too large / too small, the parameters are quickly adjusted to regulate the coating liquid temperature of the papermaking reconstituted tobacco.

[0137] Similarly, the regulation of the parameters of the reconstituted tobacco equipment for the second target can be single-parameter regulation or multi-parameter comprehensive regulation.

[0138] Further, in this embodiment, when the abnormal target reconstituted tobacco process parameter is the absolute dry weight before coating, the corresponding third target reconstituted tobacco equipment parameter includes at least one of the sizing amount, retention rate, and sheet base uniformity.

[0139] The meaning of the sizing amount is the same as above, and will not be repeated here. Among them, the sizing amount is positively correlated with the absolute dry weight before coating within a certain numerical range.

[0140] Retention rate (also known as filler retention rate) refers to the proportion of fillers or fibers retained in paper during the papermaking process, that is, the percentage of fillers in paper to fillers in the slurry. Retention rate is positively correlated with the absolute dry weight before coating.

[0141] In addition, the retention rate is a calculated value, calculated as follows:

[0142] Retention rate = absolute dry weight of retained slurry / absolute dry weight of slurry * 100%

[0143] Among them, the absolute dry amount of retained slurry and the absolute dry amount of slurry are both the collection amounts of the system.

[0144] The meaning of the film base uniformity is the same as above, and will not be repeated here. Among them, the better the film base uniformity, the more stable the absolute dry weight before coating, and vice versa, the worse the uniformity, the greater the quantitative fluctuation, and the extreme difference will affect the back-end processing.

[0145] When an abnormality is detected in the value of the absolute dry weight before coating, based on the third target reconstituted tobacco equipment parameters mentioned above and the positive / negative correlation between these operating parameters and the absolute dry weight before coating, it is detected whether the third target reconstituted tobacco equipment parameters are too large / too small, and when it is found that the third target reconstituted tobacco equipment parameters are too large / too small, the parameters are quickly adjusted to regulate the absolute dry weight before coating of the papermaking reconstituted tobacco.

[0146] Further, in this embodiment, when the abnormal target reconstituted tobacco process parameter is the post-coating quantity, the corresponding fourth target reconstituted tobacco equipment parameter includes at least one of the coating liquid concentration, coating roller pressure, additive usage, absolute dry quantity before coating, paper machine speed, coating liquid temperature and base absorption performance value.

[0147] The coating liquid concentration can be a collected value or a calculated value. The Brix value is used to reflect the coating liquid concentration for monitoring and measurement, and it can also be collected and converted by a mass transmitter to present a specific concentration value. There is a positive correlation between the coating liquid concentration and the post-coating quantity. The roller pressure of the coating roller refers to the pressure value when the coating roller applies the coating to the surface of the base material, which can be directly collected by the system. Among them, the coating roller pressure is negatively correlated with the post-coating quantity.

[0148] The amount of additives used refers to all substances in the middle coating liquid except the concentrated liquid, including flavors and fragrances, calcium carbonate, propylene glycol, glycerin, etc. Among them, calcium carbonate in the additives will directly increase the quantitative amount after coating. Therefore, the amount of additives used is positively correlated with the quantitative amount after coating.

[0149] In addition, the absolute dry weight before coating will also affect the size of the absolute dry weight after coating, and the two are positively correlated. When the value of the absolute dry weight after coating is abnormal, the equipment parameters that affect the absolute dry weight before coating (such as sizing amount, retention rate, film base uniformity, etc.) can be detected, and the absolute dry weight before coating can be adjusted by adjusting the equipment parameters that affect the absolute dry weight before coating, thereby adjusting the value of the absolute dry weight after coating.

[0150] Paper machine speed refers to the running speed of the paper machine, which is determined by the driving roller of the paper machine's fourdrinier wire and can be directly collected by the system. The paper machine speed is negatively correlated with the weight after coating.

[0151] In addition, the temperature of the coating liquid will also affect the size of the quantitative amount after coating. When the temperature of the coating liquid decreases, the viscosity of the coating liquid increases, and the quantitative amount after coating will also increase. Therefore, when the quantitative value after coating is abnormal, the equipment parameters affecting the temperature of the coating liquid can be detected. By adjusting the equipment parameters affecting the temperature of the coating liquid, the temperature of the coating liquid can be adjusted, and then the numerical size of the quantitative amount after coating can be adjusted.

[0152] The sheet base absorption performance value refers to the quantitative value of the sheet base absorption performance, which is related to the material of the sheet base and is positively correlated with the bulk thickness of the sheet base within a certain numerical range. The sheet base absorption performance value is a parameter value predetermined in the process of papermaking reconstituted tobacco leaves. The sheet base absorption performance value can be changed by adjusting the bulk thickness of the sheet base. Under the same conditions, the better the sheet base absorption performance, the higher the quantitative value after coating, but there is an extreme value. Therefore, the sheet base absorption performance is positively correlated with the quantitative value after coating within a certain range.

[0153] When an abnormality is detected in the value of the post-coating quantitative value, based on the above-mentioned equipment parameters and the positive / negative correlation between these operating parameters and the post-coating quantitative value, it is detected whether the above-mentioned fourth target reconstituted tobacco equipment parameters are too large / too small, and when it is found that the fourth target reconstituted tobacco equipment parameters are too large / too small, the parameters are quickly adjusted to regulate the post-coating quantitative value of the papermaking reconstituted tobacco.

[0154] Similarly, the regulation of the parameters of the reconstituted tobacco equipment for the fourth goal can be single-parameter regulation or multi-parameter comprehensive regulation.

[0155] Furthermore, in this embodiment, when the abnormal target reconstituted tobacco process parameter is the coating rate, the corresponding fifth target reconstituted tobacco equipment parameter includes at least one of the absolute dry weight before coating, the absolute dry weight after coating, the coating roller pressure, the coating liquid concentration, the paper machine speed and the base absorption performance value.

[0156] The target reconstituted tobacco equipment parameters that affect the coating rate are similar to the aforementioned absolute dry weight before coating and absolute dry weight after coating, and can be referred to the relevant records in the aforementioned target reconstituted tobacco equipment parameters, which will not be repeated here. The regulation of the fifth target reconstituted tobacco equipment parameter can be single parameter regulation or multi-parameter comprehensive regulation.

[0157] Furthermore, in this embodiment, when the abnormal target reconstituted tobacco process parameter is the drying temperature, the corresponding sixth target reconstituted tobacco equipment parameter includes at least one of the slope spray flow rate after coating, the hot air usage, the condensate discharge, the dehumidification fan power, the number of tunnel sections used, and the paper machine speed.

[0158] Slope spray flow refers to the amount of water sprayed by the slope spray equipment during the spraying process, which can be directly collected through the system. The slope spray equipment forms water mist after high pressure to act on the coated product, which facilitates the penetration of the coating liquid. The principle is to stabilize the water entering the tunnel and drive the penetration of the coating liquid through the permeability of water. The amount of water will lower the temperature of the product entering the tunnel, thereby affecting the tunnel temperature. Therefore, the slope spray flow and tunnel temperature are negatively correlated.

[0159] Among them, when the tunnel dryer has multiple sections, the slope spray flow rate affects the tunnel temperature in the first tunnel section.

[0160] Hot air usage refers to the combined hot air usage of the tunnel dryer and the rotary dryer, which can be directly collected through the system. There is a positive correlation between hot air usage and tunnel temperature.

[0161] The condensate discharge situation refers to the condensate discharge situation in the condensate pipe of the tunnel dryer, including but not limited to the condensate discharge volume, condensate temperature, discharge frequency, condensate pipe pressure and total discharge volume. Poor discharge will directly affect the temperature control of the tunnel dryer. The system collects at least one of the condensate discharge volume, condensate temperature, discharge frequency, condensate pipe pressure and total discharge volume and obtains a calculated amount by weighting. The calculated amount falls into different numerical ranges, corresponding to different condensate discharge situations. The larger the calculated amount, the better the condensate discharge situation.

[0162] The power of the dehumidification fan refers to the operating power of the dehumidification fan, which can be directly collected through the system. There is a positive correlation between the power of the dehumidification fan and the tunnel temperature.

[0163] The number of tunnel sections used refers to the number of tunnel sections opened and used in the tunnel dryer. There is a positive correlation between the number of tunnel sections used and the drying temperature.

[0164] The paper machine speed is the same as mentioned above and will not be repeated here.

[0165] When an abnormality is detected in the drying temperature value, based on the above-mentioned equipment parameters and the positive / negative correlation between these operating parameters and the drying temperature, it is detected whether the above-mentioned sixth target reconstructed tobacco equipment parameter is too large / too small, and when it is found that the sixth target reconstructed tobacco equipment parameter is too large / too small, the parameter is quickly adjusted to regulate the drying temperature of the papermaking reconstructed tobacco.

[0166] When the abnormal target reconstituted tobacco process parameter is finished product moisture, the corresponding seventh target reconstituted tobacco equipment parameter includes at least one of drying temperature, rotary dryer temperature and paper machine speed.

[0167] The drying temperature is negatively correlated with the moisture content of the finished product. The target reconstituted tobacco equipment parameters that affect the drying temperature can also affect the moisture content of the final reconstituted tobacco product.

[0168] The paper machine speed is the same as mentioned above and will not be repeated here.

[0169] The rotary dryer temperature can be directly collected by the system and is negatively correlated with the moisture content of the finished product.

[0170] Further, when the abnormal target reconstituted tobacco process parameter is the coating liquid concentration, the corresponding eighth target reconstituted tobacco equipment parameter includes at least one of the paper machine speed, coating liquid preparation concentration, cycle time, coating liquid reflux rate and coating liquid formula.

[0171] The concentration of the coating liquid preparation refers to the concentration of the concentrated solution after the tobacco extract is evaporated and concentrated. It can be directly expressed and collected by the Brix value, which is positively correlated with the concentration of the coating liquid;

[0172] Cycle time refers to the circulation time of the coating liquid in the coating machine tank, which can be controlled by the coating liquid supply pump and the coating liquid tank level linkage. Since the substrate will take away water first when passing through the coating liquid tank, thereby increasing the coating liquid concentration in the coating liquid tank, it is positively correlated with the coating liquid concentration.

[0173] The coating liquid reflux refers to the reflux amount of the coating liquid after use, which is directly collected by the system;

[0174] The coating liquid formula refers to the difference in the substances added to the coating liquid according to the product differences. The difference in the added substances leads to the difference in the concentration of the coating liquid;

[0175] In the technical solution provided in this embodiment, each target process parameter corresponds to one or more target reconstituted tobacco equipment parameters. When the target process parameter is detected as an abnormal target reconstituted tobacco process parameter, each target reconstituted tobacco equipment parameter is detected to be abnormal, and the abnormal target reconstituted tobacco equipment parameter is output to prompt the staff to adjust the reconstituted tobacco equipment parameter corresponding to the process parameter, thereby restoring the abnormal process parameter to the corresponding parameter value under the standard sensory quality score value, thereby avoiding large fluctuations in the sensory quality score values ​​of subsequent reconstituted tobacco under the production batch, and further improving the quality control stability of the reconstituted tobacco production process.

[0176] Third embodiment

[0177] Reference Fig.13 Based on any of the above embodiments, in this embodiment, step S20 includes:

[0178] Step S21, obtaining target process parameters of the reconstituted tobacco to be tested, wherein the target process parameters include at least one of the following: moisture content before coating, temperature of coating liquid, absolute dry weight before coating, absolute dry weight after coating, coating rate, drying temperature, moisture content of finished product and concentration of coating liquid;

[0179] Step S22, determining whether the target process parameter is in a preset process parameter interval, wherein the preset process parameter interval includes at least one of a standard coating moisture interval, a standard coating liquid temperature interval, a standard coating moisture interval, a standard absolute dry weight interval before coating, a standard absolute dry weight interval after coating, a standard coating rate interval, a standard drying temperature interval, a standard finished product moisture interval, and a standard coating liquid concentration interval;

[0180] Step S23: if not, determine the target process parameter as the abnormal target reconstituted tobacco process parameter.

[0181] As an optional embodiment, for abnormal judgment of target process parameters, a corresponding standard range is pre-set for each target process parameter, and it is judged whether these parameters are within these standard ranges. The target process parameters that are not within the standard ranges are determined as abnormal target reconstituted tobacco process parameters, thereby executing the determination and output of abnormal target reconstituted tobacco equipment parameters of the abnormal target reconstituted tobacco process parameters in step S30.

[0182] In this embodiment, the target process parameters include at least one of the coating moisture, coating liquid temperature, absolute dry weight before coating, absolute dry weight after coating, coating rate, drying temperature, finished product moisture and coating liquid concentration; the preset process parameter interval includes at least one of the standard coating moisture interval, standard coating liquid temperature interval, standard coating moisture interval, standard absolute dry weight interval before coating, standard absolute dry weight interval after coating, standard coating rate interval, standard drying temperature interval, standard finished product moisture interval and standard coating liquid concentration interval.

[0183] It can be understood that, in this embodiment, if there are several target process parameters, there will be several corresponding preset process parameter intervals.

[0184] For example, in some specific embodiments, the target process parameters are the coating moisture and the coating liquid temperature, and the corresponding preset process parameter intervals are the standard coating moisture interval and the standard coating liquid temperature interval; in other specific embodiments, the target process parameters are the coating rate, the drying temperature and the finished product moisture, and the corresponding preset process parameter intervals are the standard coating rate interval, the standard drying temperature interval and the standard finished product moisture interval.

[0185] In the technical solution provided in this embodiment, a corresponding standard range is pre-set for each target process parameter to determine whether these parameters are within these standard ranges, and the target process parameters that are not within the standard range are determined as abnormal target reconstituted tobacco process parameters, thereby executing the determination and output of the abnormal target reconstituted tobacco equipment parameters for the abnormal target reconstituted tobacco process parameters in step S30.

[0186] Fourth embodiment

[0187] Based on any of the foregoing embodiments, in this embodiment, the standard coating moisture range can be set to 20.0%±3.0%.

[0188] Fifth embodiment

[0189] Based on any of the foregoing embodiments, in this embodiment, the standard coating liquid temperature range can be set to 50°C±5.0°C.

[0190] Sixth embodiment

[0191] Based on any of the above embodiments, in this embodiment, the standard absolute dry weight range before coating can be set to 45.0 g / m 2 ±5.0g / m 2 .

[0192] Seventh embodiment

[0193] Based on any of the above embodiments, in this embodiment, the standard absolute dry weight range after coating can be set to 95.0 g / m 2 ±10.0g / m 2 .

[0194] Eighth embodiment

[0195] Based on any of the foregoing embodiments, in this embodiment, the standard coating rate range can be set to 42.0%±5.0%.

[0196] Ninth embodiment

[0197] Based on any of the foregoing embodiments, in this embodiment, a tunnel dryer is provided with a maximum of five tunnels, the drying temperature of each tunnel is different, and the corresponding standard drying temperature range is also different, wherein the standard drying temperature range includes at least one of the first tunnel temperature range, the second tunnel temperature range, the third tunnel temperature range, the fourth tunnel temperature range and the fifth tunnel temperature range, the first tunnel temperature range is 80.0℃±3.0℃, the second tunnel temperature range is 90.0℃±3.0℃, the third tunnel temperature range is 100.0℃±3.0℃, the fourth tunnel temperature range is 105.0℃±3.0℃, and the fifth tunnel temperature range is 110.0℃±3.0℃.

[0198] Tenth embodiment

[0199] Based on any of the foregoing embodiments, in this embodiment, the standard finished product moisture range can be set to 10.0%±2.0%.

[0200] Eleventh Embodiment

[0201] Based on any of the foregoing embodiments, in this embodiment, the standard coating liquid concentration range may be set to 60.0%±10.0%.

[0202] In addition, it can be understood by a person skilled in the art that all or part of the processes in the method for implementing the above embodiment can be completed by instructing the relevant hardware through a computer program. The computer program includes program instructions, and the computer program can be stored in a storage medium, which is a computer-readable storage medium. The program instructions are executed by at least one processor in the papermaking process reconstituted tobacco system to implement the process steps of the embodiment of the above method.

[0203] Therefore, the present invention also provides a computer-readable storage medium, which stores a papermaking process reconstituted tobacco equipment parameter monitoring program based on sensory quality scoring. When the papermaking process reconstituted tobacco equipment parameter monitoring program based on sensory quality scoring is executed by a processor, the various steps of the papermaking process reconstituted tobacco equipment parameter monitoring method based on sensory quality scoring described in the above embodiment are implemented.

[0204] The computer-readable storage medium may be a USB flash drive, a mobile hard disk, a read-only memory (ROM), a magnetic disk, or an optical disk, etc., which may store program codes.

[0205] It should be noted that since the storage medium provided in the embodiment of the present application is the storage medium used to implement the method of the embodiment of the present application, based on the method introduced in the embodiment of the present application, the person skilled in the art can understand the specific structure and deformation of the storage medium, so it is not repeated here. All storage media used in the method of the embodiment of the present application belong to the scope of protection of this application.

[0206] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0207] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0208] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0209] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0210] It should be noted that in the claims, any reference signs placed between brackets shall not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claim. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The invention may be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third etc. does not indicate any order. These words may be interpreted as names.

[0211] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0212] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for monitoring process parameters of reconstituted tobacco leaves in a papermaking process based on sensory quality scoring, characterized in that: The method comprises the following steps: Obtaining a sensory quality score value of the reconstituted tobacco to be tested, wherein the sensory quality score value is a predicted value calculated based on process parameters associated with the sensory quality score of the reconstituted tobacco, and the process parameters associated with the sensory quality score of the reconstituted tobacco include at least one of the following: moisture content in the coating, temperature of the coating liquid, absolute dry weight before coating, absolute dry weight after coating, coating rate, drying temperature, moisture content in the finished product, and concentration of the coating liquid; When it is detected that the sensory quality score value is not within the normal value range, determining the abnormal target reconstituted tobacco process parameter of the reconstituted tobacco; Output the abnormal target reconstituted tobacco equipment parameters corresponding to the abnormal target reconstituted tobacco process parameters.

2. The method according to claim 1, characterized in that The abnormal target reconstituted tobacco process parameters include at least one of the following: water content before coating, coating liquid temperature, absolute dry weight before coating, absolute dry weight after coating, coating rate, drying temperature, finished product water content and coating liquid concentration. The output of the abnormal target reconstituted tobacco equipment parameters corresponding to the abnormal target reconstituted tobacco process parameters specifically includes: Obtaining target reconstituted tobacco equipment parameters corresponding to the abnormal target reconstituted tobacco process parameters; Detecting whether each of the target reconstituted tobacco equipment parameters is within the corresponding preset normal value range; If not, the target reconstituted tobacco equipment parameters that are not within the preset normal value range are determined as the abnormal target reconstituted tobacco equipment parameters and output.

3. The method according to claim 2, characterized in that When the abnormal target reconstituted tobacco process parameter is the coating moisture, the corresponding first target reconstituted tobacco equipment parameter includes at least one of the sizing amount, the vacuum degree of the vacuum dehydration box, the vacuum pressing pressure, the hot air temperature of the Yankee hood, the Yankee cylinder temperature, the small cylinder group temperature and the uniformity of the sheet base.

4. The method according to claim 2, characterized in that When the abnormal target reconstituted tobacco process parameter is the coating liquid temperature, the corresponding second target reconstituted tobacco equipment parameter includes the steam usage of the heat exchanger and / or the coating liquid heating time.

5. The method according to claim 2, characterized in that When the abnormal target reconstituted tobacco process parameter is the absolute dry weight before coating, the corresponding third target reconstituted tobacco equipment parameter includes at least one of sizing amount, retention rate, and sheet base uniformity.

6. The method according to claim 2, characterized in that When the abnormal target reconstituted tobacco process parameter is the absolute dry weight after coating, the corresponding fourth target reconstituted tobacco equipment parameter includes at least one of the coating liquid concentration, coating roller pressure, additive usage, absolute dry weight before coating, paper machine speed, coating liquid temperature and base absorption performance value.

7. The method according to claim 2, characterized in that When the abnormal target reconstituted tobacco process parameter is the coating rate, the corresponding fifth target reconstituted tobacco equipment parameter includes at least one of the absolute dry weight before coating, the absolute dry weight after coating, the coating roller pressure, the coating liquid concentration, the paper machine speed and the base absorption performance value.

8. The method according to claim 2, characterized in that When the abnormal target reconstituted tobacco process parameter is the drying temperature, the corresponding sixth target reconstituted tobacco equipment parameter includes at least one of the slope spray flow after coating, hot air usage, condensate discharge, dehumidification fan power, tunnel dryer usage number, and paper machine speed.

9. The method according to claim 2, characterized in that When the abnormal target reconstituted tobacco process parameter is the finished product moisture, the corresponding seventh target reconstituted tobacco equipment parameter includes at least one of a drying temperature, a rotary dryer temperature and a paper machine speed.

10. The method according to claim 2, characterized in that When the abnormal target reconstituted tobacco process parameter is the coating liquid concentration, the corresponding eighth target reconstituted tobacco equipment parameter includes at least one of paper machine speed, coating liquid preparation concentration, cycle time, coating liquid reflux rate and coating liquid formula.

11. The method according to claim 1, characterized in that The step of determining the abnormal target reconstituted tobacco process parameter of the reconstituted tobacco comprises: Obtaining target process parameters of the reconstituted tobacco to be tested, wherein the target process parameters include at least one of the following: moisture content in coating, coating liquid temperature, absolute dry weight before coating, absolute dry weight after coating, coating rate, drying temperature, finished product moisture content and coating liquid concentration; Determine whether the target process parameter is within a preset process parameter range, wherein the preset process parameter range includes at least one of a standard coating moisture range, a standard coating liquid temperature range, a standard absolute dry weight range before coating, a standard absolute dry weight range after coating, a standard coating rate range, a standard drying temperature range, a standard finished product moisture range, and a standard coating liquid concentration range; If not, the target process parameter is determined as the abnormal target reconstituted tobacco process parameter.

12. The method according to claim 11, characterized in that The standard coating moisture range is 20.0%±3.0%.

13. The method according to claim 11, characterized in that The standard coating liquid temperature range is 50.0°C±5.0°C.

14. The method according to claim 11, characterized in that The standard absolute dry weight range before coating is 45.0 g / m 2 ±5.0g / m 2 .

15. The method according to claim 11, characterized in that The standard absolute dry weight range after coating is 95g / m 2 ±10.0g / m 2 .

16. The method according to claim 11, characterized in that The standard coating rate range is 42.0%±5.0%.

17. The method according to claim 11, characterized in that The standard drying temperature interval includes the first tunnel temperature interval, the second tunnel temperature interval, the third tunnel temperature interval, the fourth tunnel temperature interval and the fifth tunnel temperature interval. The first tunnel temperature interval is 80.0℃±3.0℃, the second tunnel temperature interval is 90.0℃±3.0℃, the third tunnel temperature interval is 100.0℃±3.0℃, the fourth tunnel temperature interval is 105.0℃±3.0℃, and the fifth tunnel temperature interval is 110.0℃±3.0℃.

18. The method according to claim 11, characterized in that The standard finished product moisture range is 10.0%±2.0%.

19. The method according to claim 11, characterized in that The concentration range of the standard coating solution is 60.0±10.0%.

20. A papermaking process reconstituted tobacco system, characterized in that: The papermaking reconstituted tobacco system comprises: a memory, a processor, and a papermaking reconstituted tobacco equipment parameter monitoring program based on sensory quality scoring stored in the memory and executable on the processor. When the papermaking reconstituted tobacco equipment parameter monitoring program based on sensory quality scoring is executed by the processor, the steps of the papermaking reconstituted tobacco equipment parameter monitoring method based on sensory quality scoring as described in any one of claims 1 to 19 are implemented.

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