CN114642267A - Method and device for regulating and controlling hot processing strength of cut tobacco drying process and electronic equipment - Google Patents

Method and device for regulating and controlling hot processing strength of cut tobacco drying process and electronic equipment Download PDF

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CN114642267A
CN114642267A CN202210338750.4A CN202210338750A CN114642267A CN 114642267 A CN114642267 A CN 114642267A CN 202210338750 A CN202210338750 A CN 202210338750A CN 114642267 A CN114642267 A CN 114642267A
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CN114642267B (en
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刘文锋
邓雨婷
李陈巧
张耀华
司辉
胡红云
刘辉
周红审
刘德强
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China Tobacco Hubei Industrial LLC
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China Tobacco Hubei Industrial LLC
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    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00Preparing tobacco in the factory
    • A24B3/04Humidifying or drying tobacco bunches or cut tobacco
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B9/00Control of the moisture content of tobacco products, e.g. cigars, cigarettes, pipe tobacco

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Abstract

The invention discloses a method, a device and electronic equipment for regulating and controlling hot processing strength of a cut tobacco drying procedure, wherein the method comprises the steps of obtaining temperature and humidity data of an inlet and an outlet of a roller, which are acquired by a temperature and humidity detector, and generating a first mapping curve of the environment in the roller of a roller dryer based on the temperature and humidity data of the inlet and the outlet of the roller; obtaining a second mapping curve by first differential derivation of the first mapping curve, calculating hot working strength based on the second mapping curve, and constructing a real-time variation graph of the hot working strength; and comparing the real-time change diagram with the preset standard machining strength, calculating to obtain a real-time hot machining strength absolute difference value, and adjusting the temperature parameter of the roller dryer based on the real-time hot machining strength absolute difference value. According to the method, the enthalpy change of the hot air in the drying process is calculated by monitoring the temperature and the humidity of the hot air, so that the change state of the cut tobacco in the drying process is predicted, the hot processing strength is regulated and controlled, and quantitative regulation and control are realized.

Description

Method and device for regulating hot processing strength of cut tobacco drying process and electronic equipment
Technical Field
The application relates to the technical field of cigarette cut tobacco drying, in particular to a method and a device for regulating and controlling hot processing strength of a cut tobacco drying procedure and electronic equipment.
Background
The cut tobacco drying process is a key process in the cigarette cut tobacco production process, partial moisture of the cut tobacco is removed through heating and drying, meanwhile, the filling value and the processing resistance of the cut tobacco are improved, the physical quality and the sensory quality of the coordinated cut tobacco are improved, the smoking quality is improved, and the cigarette aroma style is highlighted.
At present, most of drying devices used in the industry are roller drying, and the cut tobacco reaches quality indexes such as moisture, temperature and the like of cut tobacco drying outlets through heat conduction with shoveling plates on the inner wall of the roller and heat convection with hot air. The hot working strength is an important index, and the hot working strength is the ratio of the constant integral of the drying rate to the time when the peak value is reached to the constant integral of the drying rate to the time in the whole process. However, due to the influence of factors such as audiences in the tobacco shred drying process, the hot processing strength in the processing process is not enough, the moisture requirement of the dried tobacco shreds cannot be met, and the excessive hot processing strength can reduce the content of the flavor components of the tobacco raw materials and increase the breakage of the tobacco shreds, so that the use of the proper hot processing strength is particularly important for the cigarette quality.
However, since the inside of the drum dryer is a high-temperature and closed environment and the drying process of the cut tobacco is dynamic, the material is continuously thrown and rolled in the drum, so that it is very difficult to directly monitor the thermal state of the cut tobacco in the drying process. Therefore, in the current industry, the temperature and the moisture of materials at the inlet and the outlet of the cut tobacco drying barrel are mainly monitored, and the production experience of field technicians is combined to adjust relevant parameters and hot working strength of the processing process so as to ensure that the quality index of the materials at the outlet is reached. In addition, technicians characterize and adjust the processing strength of the cut tobacco drying process through the humiture of cut tobacco at an inlet and an outlet of a roller, and the method has the defects that even if quality indexes such as moisture, temperature and the like of outlet materials meet expected requirements, certain fluctuation and difference of cigarette sensory quality and the like are easily caused by different control and adjustment modes, the processing strength of the drying process cannot be described only according to the thermal state parameters of the starting and ending states of the cut tobacco, and the basis of quantitative regulation and control is lacked, so that the quality of finished cigarettes is uncertain.
Therefore, the prior art can not accurately represent and monitor the hot processing strength of the cut tobacco drying process, and further can not quantitatively regulate and control the change state of the cut tobacco in the drying process.
Disclosure of Invention
In order to solve the above problems, embodiments of the present application provide a method and an apparatus for regulating and controlling hot processing strength in a cut tobacco drying process, and an electronic device.
In a first aspect, an embodiment of the present application provides a method for regulating and controlling hot working strength in a cut tobacco drying process, where the method includes:
acquiring temperature and humidity data of an inlet and an outlet of a roller, which are acquired by a temperature and humidity detector, and generating a first mapping curve of the environment in a cylinder of a roller dryer based on the temperature and humidity data of the inlet and the outlet of the roller, wherein the first mapping curve is used for representing the mapping relation between humidity and time;
obtaining a second mapping curve by first differential derivation of the first mapping curve, calculating the hot working strength based on the second mapping curve, and constructing a real-time variation graph of the hot working strength, wherein the second mapping curve is used for representing the mapping relation between the drying rate and the time;
and comparing the real-time change diagram according to preset standard machining strength, calculating to obtain a real-time hot machining strength absolute difference value, and adjusting the temperature parameter of the roller dryer based on the real-time hot machining strength absolute difference value so as to enable the real-time hot machining strength absolute difference value to be zero.
Preferably, the calculating of the hot working strength based on the second mapping curve includes:
determining the drying rate peak time and the drying end time in the second mapping curve, and calculating the ratio of the constant integral of the drying rate peak time to the constant integral of the drying end time to the time, wherein the ratio is the hot working strength.
Preferably, the calculation formula of the ratio is as follows:
Figure DEST_PATH_IMAGE002
wherein,
Figure DEST_PATH_IMAGE004
in order to determine the peak time of the drying rate,
Figure DEST_PATH_IMAGE006
in order to set the end time of the drying,
Figure DEST_PATH_IMAGE008
is the drying rate.
Preferably, the temperature parameters comprise hot air temperature and cylinder wall temperature;
adjusting the temperature parameter of the roller dryer based on the real-time absolute difference value of the hot working strength, comprising:
when the real-time absolute difference value of the hot processing strength is smaller than a preset difference value, adjusting the hot air temperature corresponding to the roller dryer;
and when the real-time absolute difference value of the hot working strength is not less than a preset difference value, adjusting the temperature of the cylinder wall corresponding to the roller dryer.
Preferably, the method further comprises:
intercepting a change curve segment of the real-time change graph within a preset time length every time the preset time length passes, determining the change curve segment as a historical curve segment, and constructing a historical curve segment database based on the historical curve segments;
and when a newly intercepted first change curve segment is matched with any one of the historical curve segments, acquiring temperature parameter adjustment data of a subsequent historical curve segment corresponding to the historical curve segment, and adjusting the temperature parameter based on the temperature parameter adjustment data, wherein the subsequent historical curve segment is the next segment of the historical curve segment.
Preferably, when there is a newly intercepted first variation curve segment matching any one of the historical curve segments, acquiring temperature parameter adjustment data of a subsequent historical curve segment corresponding to the historical curve segment, and after adjusting the temperature parameter based on the temperature parameter adjustment data, the method further includes:
continuously monitoring a first real-time curve shape of a first subsequent curve segment, and comparing the first real-time curve shape with the subsequent historical curve segment, wherein the first subsequent curve segment is a next segment of the first variation curve segment;
and when the first real-time curve shape cannot be matched with the subsequent historical curve section, adjusting the temperature parameter of the roller dryer based on the real-time hot working strength absolute difference value, and forming a correlation group by the first subsequent curve section and the subsequent historical curve section.
Preferably, the method further comprises:
when a newly intercepted second change curve segment is matched with any one historical curve segment, acquiring a correlation group corresponding to the historical curve segment;
continuously monitoring a second real-time curve shape of a second subsequent curve segment, and comparing the second real-time curve shape with the association group, wherein the second subsequent curve segment is a next segment of the second variation curve segment;
when the second real-time curve shape is matched with any one of the association curve segments in the association group, acquiring temperature parameter adjustment data of the association curve, and adjusting the temperature parameter based on the temperature parameter adjustment data;
and when the second real-time curve shape cannot be matched with any one associated curve segment in the associated group, adjusting the temperature parameter of the roller dryer based on the real-time hot working strength absolute difference value, and adding the second subsequent curve segment serving as the associated curve segment into the associated group.
In a second aspect, an embodiment of the present application provides a device for regulating and controlling hot working strength of a cut tobacco drying process, the device includes:
the acquisition module is used for acquiring temperature and humidity data of an inlet and an outlet of the roller, which are acquired by the temperature and humidity detector, and generating a first mapping curve of the environment in the cylinder of the roller dryer based on the temperature and humidity data of the inlet and the outlet of the roller, wherein the first mapping curve is used for representing the mapping relation between humidity and time;
the calculation module is used for obtaining a second mapping curve by first differential derivation of the first mapping curve, calculating the hot working strength based on the second mapping curve, and constructing a real-time change graph of the hot working strength, wherein the second mapping curve is used for representing the mapping relation between the drying rate and the time;
and the adjusting module is used for comparing the real-time change diagram according to preset standard machining strength, calculating to obtain a real-time hot machining strength absolute difference value, and adjusting the temperature parameter of the roller dryer based on the real-time hot machining strength absolute difference value so as to enable the real-time hot machining strength absolute difference value to be zero.
In a third aspect, an embodiment of the present application provides an electronic device, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor executes the computer program to implement the steps of the method as provided in the first aspect or any one of the possible implementation manners of the first aspect.
In a fourth aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method as provided in the first aspect or any one of the possible implementations of the first aspect.
The invention has the beneficial effects that: 1. according to the relation that the reduction amount of the cut tobacco moisture in the drying process is equal to the increase amount of the hot air moisture, the change of the enthalpy of the hot air in the drying process is calculated by monitoring the temperature and the humidity of the hot air, and then the change state of the cut tobacco in the drying process is predicted, so that the hot processing strength is regulated and controlled, and quantitative regulation and control are realized.
2. The parameters required in the quantitative characterization process of the hot working strength are easy and quick to obtain, the operability is strong, the parameters are irrelevant to the parameters of the roller and the technological parameters of the roller, and the adaptability is wide.
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In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic flow chart of a method for regulating and controlling hot working strength in a cut tobacco drying process according to an embodiment of the present application;
fig. 2 is a schematic diagram of a first mapping curve provided in an embodiment of the present application;
FIG. 3 is a diagram illustrating a second mapping curve provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of a device for regulating and controlling hot processing strength in a cut tobacco drying process according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
In the following description, the terms "first" and "second" are used for descriptive purposes only and are not intended to indicate or imply relative importance. The following description provides embodiments of the present application, where different embodiments may be substituted or combined, and thus the present application is intended to include all possible combinations of the same and/or different embodiments described. Thus, if one embodiment includes feature A, B, C and another embodiment includes feature B, D, then this application should also be construed to include embodiments that include one or more of all other possible combinations of A, B, C, D, even though such embodiments may not be explicitly recited in the text below.
The following description provides examples, and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made in the function and arrangement of elements described without departing from the scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than the order described, and various steps may be added, omitted, or combined. Furthermore, features described with respect to some examples may be combined into other examples.
Referring to fig. 1, fig. 1 is a schematic flow chart of a method for regulating and controlling hot processing strength in a cut tobacco drying process according to an embodiment of the present application. In an embodiment of the present application, the method includes:
s101, acquiring temperature and humidity data of an inlet and an outlet of a roller, which are acquired by a temperature and humidity detector, and generating a first mapping curve of the environment in the roller dryer based on the temperature and humidity data of the inlet and the outlet of the roller, wherein the first mapping curve is used for representing the mapping relation between humidity and time.
The execution body of the application can be a controller of a computer terminal connected with the drum dryer.
In the embodiment of the application, in the drying process of the cut tobacco, the mass transfer process in the roller dryer mainly is the convection mass transfer between the cut tobacco and hot air, the main mass transfer carriers are the cut tobacco, hot air and water, and the mass conservation expression of the three can be expressed as follows:
Figure DEST_PATH_IMAGE010
Figure DEST_PATH_IMAGE012
that is, the mass of the cut tobacco is the mass of dry cut tobacco plus the mass of water in the cut tobacco, minus the mass of water lost in the cut tobacco during drying; the mass of the hot air is the mass of the dry air, the mass of the water vapor in the air and the mass of the moisture removed by the cut tobacco leaves. It can be seen that the reduction in cut tobacco moisture is equal to the increase in hot air moisture. Therefore, the enthalpy change of hot air in the drying process can be calculated by monitoring the temperature and humidity of the hot air, and the change state of the cut tobacco in the drying process can be predicted. In order to calculate the corresponding enthalpy change, four items of data of the temperature of hot air at the inlet and the outlet of the roller, the humidity of the hot air at the inlet and the outlet of the roller, the flow rate of the hot air and the flow rate of water vapor are acquired. The hot air temperature and humidity at the inlet and the outlet of the roller can be acquired by fixedly installing an installation rod which does not rotate along with the roller on the inner central axis of the roller dryer and punching and installing a temperature and humidity detector on the installation rod.
In the prior art, the calculation process of hot working strength is as follows, and the enthalpy value of water vapor is calculated according to the following formula:
Figure DEST_PATH_IMAGE014
the enthalpy value of the dry air is calculated by the formula:
Figure DEST_PATH_IMAGE016
and due to
Figure DEST_PATH_IMAGE018
Thus, the enthalpy of the humid air is calculated as:
Figure DEST_PATH_IMAGE020
after the enthalpy value of the wet air is obtained, the enthalpy change calculation formula of the hot air in the cut tobacco drying process is as follows:
Figure DEST_PATH_IMAGE022
therefore, the calculation formula of the hot working strength is:
Figure DEST_PATH_IMAGE024
wherein,
Figure DEST_PATH_IMAGE026
the flow rate of the hot air is the flow rate of the hot air,
Figure DEST_PATH_IMAGE028
is the flow rate of the water vapor,
Figure DEST_PATH_IMAGE030
Figure DEST_PATH_IMAGE032
respectively the inlet and outlet temperatures of the hot air,
Figure DEST_PATH_IMAGE034
Figure DEST_PATH_IMAGE036
the inlet and outlet humidity of the hot air respectively, the parameter data can be obtained in the production process,
Figure DEST_PATH_IMAGE038
the specific heat capacity of the dry air is a constant value when the temperature is not widely varied
Figure DEST_PATH_IMAGE040
In the present application, the hot working strength will be calculated from the corresponding curve of drying rate versus drying time, which is more accurate through a large number of data trials. First, as shown in fig. 2, a first mapping curve of the environment in the drum of the drum dryer, i.e. a humidity-time (X-t) graph, is generated according to the temperature and humidity data of the inlet and outlet of the drum.
S102, deriving the first mapping curve through first differential to obtain a second mapping curve, calculating the hot working strength based on the second mapping curve, and constructing a real-time variation graph of the hot working strength, wherein the second mapping curve is used for representing the mapping relation between the drying rate and the time.
In the embodiment of the present application, after calculating the humidity-time (X-t) curve of the environment inside the drum, as shown in fig. 3, a drying rate-drying time (a-t) curve can be obtained by performing a differential derivation on the humidity-time curve. By continuously calculating the current hot working strength, a real-time variation graph of the hot working strength can be constructed, namely, the hot working strength is visually represented in a graph mode.
In one embodiment, the calculating the hot working strength based on the second mapping curve includes:
determining the drying rate peak time and the drying end time in the second mapping curve, and calculating the ratio of the constant integral of the drying rate peak time to the constant integral of the drying end time to the time, wherein the ratio is the hot working strength.
In the examples of the present application, the processing strength of the cut tobacco drying process is characterized by the degree of drying, i.e. the ratio of the constant integral of the drying rate over time at the time of reaching the peak to the constant integral of the drying rate over time in the whole process.
In one embodiment, the ratio is calculated by the formula:
Figure 976742DEST_PATH_IMAGE002
wherein,
Figure 690620DEST_PATH_IMAGE004
in order to determine the peak time of the drying rate,
Figure 1516DEST_PATH_IMAGE006
in order to set the end time of the drying,
Figure 396725DEST_PATH_IMAGE008
is the drying rate.
S103, comparing the real-time change chart according to preset standard machining strength, calculating to obtain a real-time hot machining strength absolute difference value, and adjusting the temperature parameter of the roller dryer based on the real-time hot machining strength absolute difference value so as to enable the real-time hot machining strength absolute difference value to be zero.
In the embodiment of the present application, the hot working strength of the cut tobacco drying process of the batch to be tested corresponding to the real-time variation diagram is
Figure DEST_PATH_IMAGE042
The standard working strength in the ideal case calculated based on the theoretical value is
Figure DEST_PATH_IMAGE044
And comparing the standard machining strength with the real-time change diagram, so that the absolute value of the difference value between the hot machining strength and the standard machining strength, namely the real-time absolute difference value of the hot machining strength can be calculated in real time. In order to ensure the effect of the drying process, the real-time hot working strength should approach the standard working strength as much as possible, so the temperature related parameters of the drum dryer are adjusted according to the real-time hot working strength absolute difference value, so that the real-time hot working strength absolute difference value is zero, and the quantitative regulation and control of the hot working strength are realized.
In one embodiment, the temperature parameters include hot air temperature, cylinder wall temperature;
adjusting the temperature parameter of the roller dryer based on the real-time absolute difference value of the hot working strength comprises the following steps:
when the real-time absolute difference value of the hot processing strength is smaller than a preset difference value, adjusting the hot air temperature corresponding to the roller dryer;
and when the real-time absolute difference value of the hot working strength is not less than a preset difference value, adjusting the temperature of the cylinder wall corresponding to the roller dryer.
In the embodiment of the present application, a preset difference is set, and when adjusting the hot working strength, the magnitude of the real-time absolute difference of the hot working strength needs to be determined first. When the absolute difference value of the real-time hot working strength is smaller than the preset difference value, the difference between the hot working strength and the standard working strength is not large, and the hot working strength of the cut tobacco drying procedure is adjusted in a small range by preferentially selecting a mode of adjusting the temperature of hot air. When the absolute difference value of the real-time hot working strength is not less than the preset difference value, the difference between the hot working strength and the standard working strength is considered to be large, the normal and stable operation of the equipment is met, and meanwhile, the temperature of the cylinder wall is adjusted to regulate and control the working strength of the cut tobacco drying procedure, so that the large change of the hot working strength is ensured.
In one embodiment, the method further comprises:
intercepting a change curve segment of the real-time change graph within a preset time length every time the preset time length passes, determining the change curve segment as a historical curve segment, and constructing a historical curve segment database based on the historical curve segments;
when a newly intercepted first change curve segment is matched with any one of the historical curve segments, acquiring temperature parameter adjustment data of a subsequent historical curve segment corresponding to the historical curve segment, and adjusting the temperature parameter based on the temperature parameter adjustment data, wherein the subsequent historical curve segment is the next segment of the historical curve segment.
In the embodiment of the application, the real-time change graph is a graph updated and expanded in real time, and the application continuously acquires the change curve segments generated in each preset time period according to the real-time change graph with the preset time period as an interval, and reserves the intercepted change curve segments as historical curve segments to construct the historical curve segment database. Thereafter, each new intercepted first variation curve segment is matched with each historical curve segment already stored in the database before being stored as historical data. If the successfully matched historical curve segment exists, the current real-time condition can be considered to be the same as the historical condition, at the moment, a subsequent historical curve segment corresponding to the historical curve segment is obtained and is regarded as the subsequent curve segment corresponding to the current curve segment, the temperature parameter is adjusted based on the temperature parameter adjusting data of the subsequent historical curve segment, and the efficiency of the adjusting and controlling process is improved.
In one implementation, when there is a match between a newly intercepted first variation curve segment and any one of the historical curve segments, obtaining temperature parameter adjustment data of a subsequent historical curve segment corresponding to the historical curve segment, and after adjusting the temperature parameter based on the temperature parameter adjustment data, the method further includes:
continuously monitoring a first real-time curve shape of a first subsequent curve segment, and comparing the first real-time curve shape with the subsequent historical curve segment, wherein the first subsequent curve segment is a next segment of the first variation curve segment;
and when the first real-time curve shape cannot be matched with the subsequent historical curve section, adjusting the temperature parameter of the roller dryer based on the real-time hot working strength absolute difference value, and forming a correlation group by the first subsequent curve section and the subsequent historical curve section.
In the embodiment of the application, the processing object is made into cut tobacco, and the cut tobacco contains moisture and is gathered together to a certain extent, namely, in the drum drying process, the controller is difficult to identify and distinguish the specific type of the cut tobacco as the processing object independently. However, the difference in the processing target results in the difference in the actual hot working strength. That is, when the processing objects are different, even if the first variation curve segment matches a certain history curve segment and the remaining conditions are not changed, the shapes of the first subsequent curve segment and the subsequent history curve segment will still not match. Therefore, when the first subsequent curve segment is not completely generated, the corresponding first real-time curve shape of the first subsequent curve segment is continuously monitored and is continuously compared with the subsequent historical curve segment, so that whether the generated part of the first subsequent curve segment can be matched with the part corresponding to the subsequent historical curve segment or not is continuously monitored in real time. When the two can not be matched, the processing object at this time can be considered to be different, and the adjustment through the temperature parameter adjustment data of the subsequent historical curve segment is inaccurate, so the adjustment is performed again based on the real-time hot working strength absolute difference value obtained by the previous calculation. In addition, the first subsequent curve segment which is finally and completely generated and intercepted is associated with the subsequent historical curve segment to form a association group, so that when the adaptive curve segment is detected again in the subsequent process, the association group can be respectively matched in the association group, the content of the association group is enriched continuously, the subsequent processing objects can be quickly matched with correct historical data, and the temperature parameter of the current subsequent curve segment can be efficiently and conveniently adjusted.
In one embodiment, the method further comprises:
when a newly intercepted second change curve segment is matched with any one historical curve segment, acquiring a correlation group corresponding to the historical curve segment;
continuously monitoring a second real-time curve shape of a second subsequent curve segment, and comparing the second real-time curve shape with the association group, wherein the second subsequent curve segment is a next segment of the second variation curve segment;
when the second real-time curve shape is matched with any one of the associated curve segments in the associated group, acquiring temperature parameter adjustment data of the associated curve, and adjusting the temperature parameter based on the temperature parameter adjustment data;
and when the second real-time curve shape cannot be matched with any one associated curve segment in the associated group, adjusting the temperature parameter of the roller dryer based on the real-time hot working strength absolute difference value, and adding the second subsequent curve segment serving as the associated curve segment into the associated group.
In the embodiment of the present application, after the association group is constructed, if a second variation curve segment is newly captured again and the second variation curve segment is matched with the historical curve segment corresponding to the association group, the second real-time curve shape which is continuously monitored in real time may be matched with each association curve segment in the association group. Therefore, when the temperature parameter adjusting data can be matched with a certain associated curve segment in the associated group, the temperature parameter is adjusted based on the temperature parameter adjusting data corresponding to the associated curve segment, and then specific regulation and control can be carried out on different processing objects, so that the effectiveness of intelligent regulation and control is ensured. And for the second subsequent curve segment which cannot be matched, adding the second subsequent curve segment into the association group, enriching the data in the association group, and thus ensuring the successful matching probability of the subsequently intercepted curve segment.
The device for regulating and controlling hot processing strength in the cut tobacco drying process provided by the embodiment of the present application will be described in detail below with reference to fig. 4. It should be noted that, the device for regulating hot processing strength in the cut tobacco drying process shown in fig. 4 is used for executing the method of the embodiment shown in fig. 1 of the present application, for convenience of description, only the portion related to the embodiment of the present application is shown, and specific technical details are not disclosed, please refer to the embodiment shown in fig. 1 of the present application.
Please refer to fig. 4, fig. 4 is a schematic structural diagram of a device for regulating and controlling hot processing strength in a cut tobacco drying process according to an embodiment of the present application. As shown in fig. 4, the apparatus includes:
an obtaining module 401, configured to obtain drum inlet and outlet temperature and humidity data acquired by a temperature and humidity detector, and generate a first mapping curve of an environment in a drum of a drum dryer based on the drum inlet and outlet temperature and humidity data, where the first mapping curve is used to represent a mapping relationship between humidity and time;
a calculating module 402, configured to derive the first mapping curve through first differential to obtain a second mapping curve, calculate a hot working strength based on the second mapping curve, and construct a real-time variation graph of the hot working strength, where the second mapping curve is used to represent a mapping relationship between a drying rate and time;
an adjusting module 403, configured to compare the real-time variation graph according to a preset standard machining strength, calculate to obtain a real-time absolute difference value of the hot machining strength, and adjust the temperature parameter of the drum dryer based on the real-time absolute difference value of the hot machining strength, so that the real-time absolute difference value of the hot machining strength is zero.
In one possible implementation, the calculation module 402 includes:
and the ratio calculation unit is used for determining the drying rate peak time and the drying end time in the second mapping curve, and calculating the ratio of the constant integral of the drying rate peak time to the drying end time to the constant integral of the drying end time to the drying end time, wherein the ratio is the hot working strength.
In one implementation, the adjustment module 403 includes:
the first adjusting unit is used for adjusting the hot air temperature corresponding to the roller dryer when the absolute difference value of the real-time hot processing strength is smaller than a preset difference value;
and the second adjusting unit is used for adjusting the temperature of the cylinder wall corresponding to the roller dryer when the real-time absolute difference value of the hot working strength is not less than a preset difference value.
In one embodiment, the apparatus further comprises:
the intercepting module is used for intercepting a change curve segment of the real-time change graph in the preset time length every time the preset time length passes, determining the change curve segment as a historical curve segment, and constructing a historical curve segment database based on the historical curve segments;
and the matching module is used for acquiring temperature parameter adjustment data of a subsequent history curve segment corresponding to the history curve segment when a newly intercepted first change curve segment is matched with any history curve segment, and adjusting the temperature parameter based on the temperature parameter adjustment data, wherein the subsequent history curve segment is the next segment of the history curve segment.
In one embodiment, the apparatus further comprises:
the monitoring module is used for continuously monitoring a first real-time curve shape of a first subsequent curve segment, and comparing the first real-time curve shape with the subsequent historical curve segment, wherein the first subsequent curve segment is a next segment of the first change curve segment;
and the association module is used for adjusting the temperature parameter of the roller dryer based on the real-time hot working strength absolute difference value when the first real-time curve shape cannot be matched with the subsequent historical curve section, and forming an association group by the first subsequent curve section and the subsequent historical curve section.
In one embodiment, the apparatus further comprises:
the first judgment module is used for acquiring a correlation group corresponding to the historical curve segment when a newly intercepted second variation curve segment is matched with any one historical curve segment;
the comparison module is used for continuously monitoring a second real-time curve shape of a second subsequent curve segment, and comparing the second real-time curve shape with the association group, wherein the second subsequent curve segment is a next segment of the second variation curve segment;
the second judging module is used for acquiring temperature parameter adjusting data of the association curve when the second real-time curve shape is matched with any association curve segment in the association group, and adjusting the temperature parameter based on the temperature parameter adjusting data;
and the third judging module is used for adjusting the temperature parameter of the roller dryer based on the real-time hot working strength absolute difference value when the second real-time curve shape cannot be matched with any one associated curve segment in the associated group, and adding the second subsequent curve segment serving as the associated curve segment into the associated group.
It is clear to a person skilled in the art that the solution according to the embodiments of the present application can be implemented by means of software and/or hardware. The "unit" and "module" in this specification refer to software and/or hardware that can perform a specific function independently or in cooperation with other components, where the hardware may be, for example, a Field-Programmable Gate Array (FPGA), an Integrated Circuit (IC), or the like.
Each processing unit and/or module in the embodiments of the present application may be implemented by an analog circuit that implements the functions described in the embodiments of the present application, or may be implemented by software that executes the functions described in the embodiments of the present application.
Referring to fig. 5, a schematic structural diagram of an electronic device according to an embodiment of the present application is shown, where the electronic device may be used to implement the method in the embodiment shown in fig. 1. As shown in fig. 5, the electronic device 500 may include: at least one central processor 501, at least one network interface 504, a user interface 503, a memory 505, at least one communication bus 502.
Wherein a communication bus 502 is used to enable connective communication between these components.
The user interface 503 may include a Display screen (Display) and a Camera (Camera), and the optional user interface 503 may also include a standard wired interface and a wireless interface.
The network interface 504 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface), among others.
The central processor 501 may include one or more processing cores. The central processor 501 connects various parts within the entire electronic device 500 using various interfaces and lines, and performs various functions of the terminal 500 and processes data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 505 and calling data stored in the memory 505. Optionally, the central Processing unit 501 may be implemented in at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). The Central Processing Unit 501 may integrate one or a combination of a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), a modem, and the like. Wherein, the CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing the content required to be displayed by the display screen; the modem is used to handle wireless communications. It is to be understood that the modem may not be integrated into the central processing unit 501, and may be implemented by a single chip.
The Memory 505 may include a Random Access Memory (RAM) or a Read-Only Memory (Read-Only Memory). Optionally, the memory 505 includes a non-transitory computer-readable medium. The memory 505 may be used to store instructions, programs, code sets, or instruction sets. The memory 505 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the various method embodiments described above, and the like; the storage data area may store data and the like referred to in the above respective method embodiments. The memory 505 may alternatively be at least one memory device located remotely from the aforementioned central processor 501. As shown in fig. 5, memory 505, which is a type of computer storage medium, may include an operating system, a network communication module, a user interface module, and program instructions.
In the electronic device 500 shown in fig. 5, the user interface 503 is mainly used as an interface for providing input for a user, and acquiring data input by the user; the central processor 501 may be configured to call the application program for regulating and controlling the hot processing strength of the cut tobacco drying process stored in the memory 505, and specifically execute the following operations:
acquiring the hot air temperature at the inlet and the outlet of the roller and the hot air humidity at the inlet and the outlet of the roller, which are acquired by a temperature and humidity detector, and measuring the hot air flow and the water vapor flow in the roller dryer;
calculating the enthalpy change of hot air in the roller dryer based on the temperature of the hot air at the inlet and the outlet of the roller, the humidity of the hot air at the inlet and the outlet of the roller, the flow of the hot air and the flow of water vapor, determining the enthalpy change of the hot air as hot processing strength, and constructing a real-time change diagram of the hot processing strength;
and comparing the real-time change diagram according to preset standard machining strength, calculating to obtain a real-time hot machining strength absolute difference value, and adjusting the temperature parameter of the roller dryer based on the real-time hot machining strength absolute difference value so as to enable the real-time hot machining strength absolute difference value to be zero.
The present application also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the above-described method. The computer-readable storage medium may include, but is not limited to, any type of disk including floppy disks, optical disks, DVD, CD-ROMs, microdrive, and magneto-optical disks, ROMs, RAMs, EPROMs, EEPROMs, DRAMs, VRAMs, flash memory devices, magnetic or optical cards, nanosystems (including molecular memory ICs), or any type of media or device suitable for storing instructions and/or data.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some service interfaces, devices or units, and may be an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned memory comprises: various media capable of storing program codes, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by a program, which is stored in a computer-readable memory, and the memory may include: flash disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.
The above description is only an exemplary embodiment of the present disclosure, and the scope of the present disclosure should not be limited thereby. That is, all equivalent changes and modifications made in accordance with the teachings of the present disclosure are intended to be included within the scope of the present disclosure. Embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (10)

1. A method for regulating and controlling hot processing strength in a cut tobacco drying procedure is characterized by comprising the following steps:
acquiring temperature and humidity data of an inlet and an outlet of a roller, which are acquired by a temperature and humidity detector, and generating a first mapping curve of the environment in a cylinder of a roller dryer based on the temperature and humidity data of the inlet and the outlet of the roller, wherein the first mapping curve is used for representing the mapping relation between humidity and time;
obtaining a second mapping curve by first differential derivation of the first mapping curve, calculating the hot working strength based on the second mapping curve, and constructing a real-time variation graph of the hot working strength, wherein the second mapping curve is used for representing the mapping relation between the drying rate and the time;
and comparing the real-time change diagram according to preset standard machining strength, calculating to obtain a real-time hot machining strength absolute difference value, and adjusting the temperature parameter of the roller dryer based on the real-time hot machining strength absolute difference value so as to enable the real-time hot machining strength absolute difference value to be zero.
2. The method of claim 1, wherein said calculating hot working strength based on said second mapping curve comprises:
determining the drying rate peak time and the drying end time in the second mapping curve, and calculating the ratio of the constant integral of the drying rate peak time to the constant integral of the drying end time to the time, wherein the ratio is the hot working strength.
3. The method of claim 2, wherein the ratio is calculated by:
Figure DEST_PATH_IMAGE001
wherein,
Figure 79128DEST_PATH_IMAGE002
in order to determine the peak time of the drying rate,
Figure DEST_PATH_IMAGE003
in order to set the end time of the drying,
Figure 809318DEST_PATH_IMAGE004
is the drying rate.
4. The method of claim 1, wherein the temperature parameters include hot air temperature, barrel wall temperature;
adjusting the temperature parameter of the roller dryer based on the real-time absolute difference value of the hot working strength comprises the following steps:
when the real-time absolute difference value of the hot processing strength is smaller than a preset difference value, adjusting the hot air temperature corresponding to the roller dryer;
and when the real-time absolute difference value of the hot working strength is not less than a preset difference value, adjusting the temperature of the cylinder wall corresponding to the roller dryer.
5. The method of claim 1, further comprising:
intercepting a change curve segment of the real-time change graph within a preset time length every time the preset time length passes, determining the change curve segment as a historical curve segment, and constructing a historical curve segment database based on the historical curve segments;
and when a newly intercepted first change curve segment is matched with any one of the historical curve segments, acquiring temperature parameter adjustment data of a subsequent historical curve segment corresponding to the historical curve segment, and adjusting the temperature parameter based on the temperature parameter adjustment data, wherein the subsequent historical curve segment is the next segment of the historical curve segment.
6. The method of claim 5, wherein when there is a match between a newly intercepted first variation curve segment and any one of the historical curve segments, obtaining temperature parameter adjustment data of a subsequent historical curve segment corresponding to the historical curve segment, and after adjusting the temperature parameter based on the temperature parameter adjustment data, further comprising:
continuously monitoring a first real-time curve shape of a first subsequent curve segment, and comparing the first real-time curve shape with the subsequent historical curve segment, wherein the first subsequent curve segment is a next segment of the first variation curve segment;
and when the first real-time curve shape cannot be matched with the subsequent historical curve section, adjusting the temperature parameter of the roller dryer based on the real-time hot working strength absolute difference value, and forming a correlation group by the first subsequent curve section and the subsequent historical curve section.
7. The method of claim 6, further comprising:
when a newly intercepted second change curve segment is matched with any one historical curve segment, acquiring a correlation group corresponding to the historical curve segment;
continuously monitoring a second real-time curve shape of a second subsequent curve segment, and comparing the second real-time curve shape with the association group, wherein the second subsequent curve segment is a next segment of the second variation curve segment;
when the second real-time curve shape is matched with any one of the associated curve segments in the associated group, acquiring temperature parameter adjustment data of the associated curve, and adjusting the temperature parameter based on the temperature parameter adjustment data;
and when the second real-time curve shape cannot be matched with any one associated curve segment in the associated group, adjusting the temperature parameter of the roller dryer based on the real-time hot working strength absolute difference value, and adding the second subsequent curve segment serving as the associated curve segment into the associated group.
8. A hot working strength regulating device for a cut tobacco drying procedure is characterized by comprising:
the acquisition module is used for acquiring temperature and humidity data of an inlet and an outlet of the roller, which are acquired by the temperature and humidity detector, and generating a first mapping curve of the environment in the cylinder of the roller dryer based on the temperature and humidity data of the inlet and the outlet of the roller, wherein the first mapping curve is used for representing the mapping relation between humidity and time;
the calculation module is used for obtaining a second mapping curve by first differential derivation of the first mapping curve, calculating the hot working strength based on the second mapping curve, and constructing a real-time change graph of the hot working strength, wherein the second mapping curve is used for representing the mapping relation between the drying rate and the time;
and the adjusting module is used for comparing the real-time change diagram according to preset standard machining strength, calculating to obtain a real-time hot machining strength absolute difference value, and adjusting the temperature parameter of the roller dryer based on the real-time hot machining strength absolute difference value so as to enable the real-time hot machining strength absolute difference value to be zero.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method according to any of claims 1-7 are implemented when the computer program is executed by the processor.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
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