CN115530412B - Dynamic tobacco gas regulating alcoholization method - Google Patents

Dynamic tobacco gas regulating alcoholization method Download PDF

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Publication number
CN115530412B
CN115530412B CN202211326109.5A CN202211326109A CN115530412B CN 115530412 B CN115530412 B CN 115530412B CN 202211326109 A CN202211326109 A CN 202211326109A CN 115530412 B CN115530412 B CN 115530412B
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alcoholization
air
tobacco
conditioning
airtight
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CN115530412A (en
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请求不公布姓名
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Tianjin CNRO Science Technology Co Ltd
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Tianjin CNRO Science Technology Co Ltd
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/20—Biochemical treatment

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
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Abstract

The application relates to a dynamic tobacco modified atmosphere alcoholization method, which comprises the following steps: acquiring the quantity of tobacco currently in an alcoholization peak value; acquiring the planned production quantity of tobacco in a future period of time; determining the demand time and the demand quantity of the tobacco at the alcoholization peak value in a future period according to the planned production quantity of the tobacco and the quantity of the tobacco at the alcoholization peak value in the future period; determining an alcoholization air-conditioning parameter according to the demand time, wherein the alcoholization air-conditioning parameter at least comprises oxygen content; determining the number of airtight tents needing to set or adjust the alcoholization air-conditioning parameters according to the required number; and setting or adjusting the air-conditioning parameters in the airtight tent, which need to be set or adjusted, to the determined alcoholization air-conditioning parameters. By utilizing the scheme of the application, the requirements of a tobacco production plan can be met, excessive stock backlog is not caused, and alcoholization cost is saved.

Description

Dynamic tobacco gas regulating alcoholization method
Technical Field
The application relates to the technical field of tobacco alcoholization, in particular to a dynamic tobacco modified atmosphere alcoholization method.
Background
Tobacco alcoholization is the scientific processing and management of tobacco leaves by using technical means to promote the physiological and biochemical changes of the tobacco leaves, thereby achieving the purpose of changing and improving the quality of the tobacco leaves. Tobacco alcoholization is classified into natural alcoholization and artificial alcoholization. The quality of tobacco leaves can be better improved by natural alcoholization, so that the raw materials of enterprises at the present stage are generally naturally alcoholized.
The tobacco plant predicts the tobacco demand for a future period of time and makes a production plan including the planned production quantity of tobacco for the future period of time. And preparing tobacco leaves with corresponding quantity according to the planned production quantity of the tobacco leaves by a tobacco factory warehouse for alcoholization operation. However, the predicted tobacco demand sometimes suffers from errors, resulting in insufficient or excessive amounts of alcoholized tobacco. When the quantity of the tobacco subjected to alcoholization is insufficient, the delivery time of the finished tobacco is prolonged, and the future production schedule is influenced; if the amount of tobacco subjected to alcoholization is excessive, the storage cost for peak-hold alcoholization increases. In view of the above problems in the related art, no effective solution has been found at present.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a dynamic tobacco modified atmosphere alcoholization method, which comprises the following steps: acquiring the quantity of tobacco currently in an alcoholization peak value; acquiring the planned production quantity of tobacco in a future period of time; determining the demand time and the demand quantity of the tobacco at the alcoholization peak value in a future period according to the planned production quantity of the tobacco and the quantity of the tobacco at the alcoholization peak value in the future period; determining an alcoholization air-conditioning parameter according to the demand time, wherein the alcoholization air-conditioning parameter at least comprises oxygen content; determining the number of airtight tents needing to set or adjust the alcoholization air-conditioning parameters according to the required number; and setting or adjusting the air-conditioning parameters in the airtight tent, which need to be set or adjusted, to the determined alcoholization air-conditioning parameters.
The oxygen content is 23% -30% by the method described above.
The method as described above, the alcoholization air-conditioning parameters further comprise temperature and relative humidity, the temperature is 25-35 ℃; the relative humidity is between 40% and 65%.
The method as described above, wherein determining the alcoholization-air-conditioning parameter according to said demand time comprises: obtaining one or more alcoholization curves of which alcoholization time is changed along with the oxygen content; and determining optimal alcoholization air-conditioning parameters based on the demand time and the one or more alcoholization curves.
A method as described above, wherein, in response to determining a plurality of alcoholization air-conditioning parameters based on said demand time and one or more of said alcoholization curves: judging the similarity between the alcoholized air-conditioning parameters and the air-conditioning parameters in the airtight tent at present; and determining an alcoholization air-conditioning parameter with the highest similarity with the current air-conditioning parameter in the airtight tent as an optimal alcoholization air-conditioning parameter in the plurality of alcoholization air-conditioning parameters.
A method as described above, wherein, in response to the demand time not being within the range of one or more of the alcoholization curves: determining a closest alcoholization time based on one or more of the alcoholization curves and the demand time; and determining an optimal alcoholization air-conditioning parameter according to the closest alcoholization time.
The method as described above, further comprising: and adjusting the air conditioning parameter of the tobacco at the alcoholization peak value to the alcoholization peak value maintaining parameter.
A method as described above, wherein the alcoholization peak hold parameter comprises: peak hold oxygen content, peak hold temperature, and peak hold relative humidity; the peak hold oxygen content is less than or equal to 10%.
A method as described above, wherein the peak hold temperature is at 25 ℃; the peak maintains the relative humidity at 55% -65%.
A method as described above, wherein the tobacco at the peak alcoholization has a shelf life in the peak alcoholization retention parameter of 0-12 months.
According to the application, the alcoholization air-conditioning parameters and the quantity of the airtight tents of the alcoholized tobacco are determined according to the required time and the required quantity of the tobacco, so that the tobacco stacking in the airtight tents with the corresponding quantity is exactly in the required time, the alcoholization process is completed, the tobacco reaches the alcoholization peak value, and the alcoholization quality is excellent. Therefore, the method can meet the requirements of tobacco production plans, does not cause excessive stock backlog, and saves alcoholization cost.
Drawings
Preferred embodiments of the present application will be described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic diagram of a tobacco curing system according to one embodiment of the present invention;
FIG. 2 is a schematic diagram of the integrated monitoring system of the tobacco curing system according to one embodiment of the present invention;
FIG. 3 is a schematic view of a tobacco gas conditioning system according to one embodiment of the present invention;
FIG. 4 is a flow chart of a method of tobacco gas conditioning according to one embodiment of the present invention;
FIG. 5 is a flow chart of a method of tobacco alcoholization air conditioning according to an embodiment of the invention;
FIG. 6 is a method of dynamic tobacco modified atmosphere alcoholization according to an embodiment of the invention;
FIGS. 7A-7C are line graphs of tobacco alcoholization quality versus alcoholization time according to an embodiment of the invention; and
fig. 8 is a schematic representation of a tobacco alcoholization curve according to an embodiment of the invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments of the application. In the drawings, like reference numerals describe substantially similar components throughout the different views. Various specific embodiments of the application are described in sufficient detail below to enable those skilled in the art to practice the teachings of the application. It is to be understood that other embodiments may be utilized or structural, logical, or electrical changes may be made to embodiments of the present application.
The tobacco gas nursing and protecting system mainly comprises two parts of gas regulating equipment and a gas-tight space. The air conditioning equipment adjusts parameters such as temperature, humidity, oxygen content and the like in the airtight space. The airtight space includes an airtight warehouse and a flexible airtight tent. The airtight storehouse can be transformed into a plurality of airtight warehouses in a large storehouse, and has the advantages of large space and the like. The flexible airtight tent is not limited in position, can be built anywhere, and the condition of tobacco in the flexible airtight tent is easily observed. In one embodiment, the air exchange rate of the airtight space is less than 0.1d -1 The method comprises the steps of carrying out a first treatment on the surface of the Preferably, the air exchange rate is less than 0.05d -1 。
Fig. 1 is a schematic view of a construction of a tobacco curing system according to an embodiment of the present invention. As shown in the figure, the tobacco curing system of the present embodiment is applied to the tobacco curing warehouse 101. The tobacco curing system of this embodiment includes: a plurality of flexible airtight tents 102, a distributed pipe network 104, a comprehensive detection air conditioning station 106 and an air source 103. A plurality of flexible, airtight tents 102 are used to place the stacked tobacco stacks. The gas source 103 is used to provide high purity nitrogen. Distributed pipe network 104 is connected to gas source 103. The integrated test air conditioning station 106 is configured to detect air conditioning parameters in the plurality of flexible air conditioning tents 102 and to be able to adjust the air conditioning parameters in the flexible air conditioning tents 102 via the distributed pipe network 104. In some embodiments, the air conditioning parameter includes oxygen content, humidity, or other parameters.
The flexible air-tight tent 102 includes one or more flexible air-tight layers. Alternatively, the flexible airtight tent 102 may include an airtight door. The airtight door is disposed on the flexible airtight layer of the flexible airtight tent. The air exchange rate of the flexible airtight tent is less than 0.05d -1 Preferred ventilation rates are less than 0.01d -1 (the volume of one day of gas exchange in a gas-tight enclosure marked with carbon dioxide or oxygen represents the percentage of the total volume). The flexible air barrier includes, but is not limited to, PVC film, air-tight, and the like air barrier materials. The flexible inner liner may be opaque or translucent. In some embodiments, transparent PVC film or the like may be used to facilitate viewing of the tent interior. In the case of a non-transparent flexible airtight layer, an airtight viewing window may be added or a transparent airtight door may be used. In some embodiments, the airtight door is a zipper door, a magnetic door, an adhesive door, etc., such as a soft door with a zipper, which is secured after being pulled. In some embodiments, the air outlet is provided in the flexible air barrier in the upper portion of the flexible air-tight tent and the air inlet is provided in the bottom of the side thereof. As will be appreciated by those skilled in the art, the air inlet and air outlet apertures of the flexible, airtight tent 102 may comprise a variety of different arrangements.
In some embodiments, the flexible airtight tent may be fabricated in the field. Firstly, manufacturing a film cover according to the size of a stack position. For example, a film cover is prepared in advance using a high barrier film. In the curing warehouse, a layer of flexible base lining (such as a carton) is paved on the tobacco stack, and a prefabricated film cover is paved on the flexible base lining. And then placing tobacco and stacking to form a tobacco stack position. The number of the tobacco stacks can be set according to the needs, and is generally 100-200 boxes, about 20-40 tons; for an overhead goods space, the tobacco stacking can reach thousands of cases, even tens of thousands of cases; it is preferable to use a highly airtight warehouse at this time. After the tobacco stacks are piled, the flexible airtight tent is manufactured on site by utilizing sealing equipment such as cutting, hot pressing, end sealing and the like. In some embodiments, the membrane housing surface has pre-configured exhaust and intake ports. In some embodiments, the vent may also be installed in the flexible air barrier at the upper portion of the flexible air-tight tent in the field, with the air inlet installed at the bottom of its sides. Further, the exhaust and intake ports may be connected to exhaust and intake pipes of the distributed network near the stack.
In some embodiments, a temperature sensor may be disposed within the flexible airtight tent, which transmits the temperature within the flexible airtight tent to the integrated monitoring air conditioning station in a wired or wireless manner, and then to a field operation platform and/or a remote service platform via the integrated monitoring air conditioning station.
In some embodiments, a humidity sensor may be provided within the flexible airtight tent that includes a probe that can be extended into the interior of the tobacco stack to detect humidity within the interior of the tobacco stack. The tobacco humidity sensor sends the measured tobacco humidity to the comprehensive monitoring air conditioning station in a wired or wireless mode, and then the tobacco humidity sensor sends the measured tobacco humidity to the on-site operation platform and/or the remote service platform through the comprehensive monitoring air conditioning station.
A distributed pipe network 104 is provided in the curing barn 101. In one embodiment, the distributed network of pipes is disposed above the curing barn 101 at a height that is higher than the height of the tobacco stacks. The stack position of the tobacco is not affected, and the vehicle can not enter and exit the maintenance warehouse. In another embodiment, the distributed pipe network is disposed in the curing barn 101 buried under the ground of the curing barn in advance. Distributed network 104 includes reserved intake and exhaust lines near each predetermined stack location within curing barn 101.
In one embodiment, distributed pipe network 104 disposed above curing barn 101 includes rigid air supply lines 1041 that extend above each predetermined stack location within curing barn 101. One end of the rigid air supply line 1041 is connected to an air supply 103. The rigid air supply lines 1041 each include an air supply branch near each predetermined stack location. The end of the air supply branch comprises an air supply end. The air supply end and the air inlet of the flexible airtight tent can be connected through a flexible pipeline. In some embodiments, a manual valve is provided on each of the air supply branches of the rigid air supply line 1041 for manually controlling the flow of air into the plurality of flexible, airtight tents. As the sizes of the tobacco stacks may be different, the required gas flows are also different; while the gas supply branches are identical. The manual valve enables a user to adjust the flow of gas into the flexible airtight tent according to the size of the stack. The air conditioning parameters in the flexible airtight tent can be controlled accurately, and energy sources can be saved effectively. In some embodiments, the distributed network of pipes includes a plurality of parallel rigid gas supply lines 1041 for providing nitrogen of different purity or humidity, respectively (e.g., 90%, 99%, and 99.99% simultaneously). A plurality of parallel rigid gas supply lines may be connected to the gas supply branches, respectively, through solenoid valves, to supply nitrogen of different purity to the flexible airtight tent. Providing nitrogen of varying purity facilitates rapid reduction of oxygen within the flexible, airtight tent using a stepped oxygen reduction approach. In some embodiments, the distributed pipe network includes a plurality of humidification devices. The humidifying device is connected to the rigid gas supply line via a gas inlet line and a gas outlet line and humidifies the gas flowing therethrough (e.g., via a water tank). When the humidified gas is required, the electromagnetic valves on the air inlet pipeline and the air outlet pipeline are opened, so that part of the gas in the rigid air supply pipeline flows through the humidifying device, and the gas with certain humidity is obtained. Providing gases of different humidity facilitates independent regulation of humidity within the air tight tent, while multiple parallel rigid air supply lines greatly increase flexibility of air regulation for different flexible air tight tents.
In some embodiments, distributed pipe network 104 includes rigid exhaust pipe 1042. The rigid air supply line 1041 is disposed substantially parallel to the rigid air exhaust line 1042. The rigid exhaust line 1042 also extends above each predetermined stack location within the curing store 101. The end of the rigid exhaust line 1042 is connected to the outside. The rigid exhaust pipe 1042 comprises an exhaust branch adjacent to each predetermined stack location. One end of the air outlet branch is connected to a comprehensive monitoring air conditioning station 106, which is in turn connected to a rigid exhaust line 1042. The other end of the air outlet branch comprises an air outlet end. The air outlet end and the air outlet of the flexible airtight tent can be connected through a flexible pipeline. Of course, the air outlet branch may also be directly connected to the rigid air outlet pipe 1042, and then connected to the integrated monitoring air conditioning station 106 through a detection pipe. In some embodiments, the detection conduit may employ a small bore conduit.
In some embodiments, a rigid exhaust conduit 1042 is not required. Flexible tubing and air out legs are necessary from the air out end of the flexible air tight tent 102 to the integrated monitoring air conditioning station 106.
The flexible pipeline between the air inlet end of the air supply branch and the air inlet of the flexible airtight tent and between the air outlet end of the air outlet branch and the air outlet of the flexible airtight tent has a certain allowance. Therefore, even if the positions of the air outlet and the air inlet of the flexible airtight tent are slightly different for different stack positions, airtight connection of the flexible airtight tent and the air supply branch and the air outlet branch can be ensured.
In some embodiments, a solenoid valve is provided at the junction of the rigid air supply line 1041 and the air supply 103. The solenoid valve can be controlled by a field operation platform or a remote service platform. When the gas source 103 begins to supply gas, the solenoid valve is opened to provide high purity (greater than 99.99% purity) nitrogen gas through the rigid gas supply line to the one or more flexible airtight tents.
In some embodiments, the gas supply branch includes a solenoid valve that is capable of controlling the gas passage corresponding to the flexible, airtight tent. Likewise, the air outlet branch comprises a solenoid valve capable of controlling the air passage between the corresponding flexible airtight tent and the corresponding integrated monitoring air conditioning station. As shown, the same integrated monitoring air conditioning station 106 can correspond to a plurality of air tight tents (typically 6-20). The integrated monitoring air conditioning station 106 controls the solenoid valves on the air supply and air outlet branches of the corresponding plurality of flexible air conditioning tents, thereby controlling the monitoring of the air supply and air conditioning parameters for their corresponding flexible air conditioning tents. The introduction of the air conditioning station 106 is comprehensively monitored, so that the construction cost of the tobacco air conditioning and protecting system can be greatly reduced, and a foundation is provided for the low-cost accurate control of the tobacco air conditioning and protecting system.
In some embodiments, the air outlet and the air outlet of the flexible airtight tent are connected to the flexible conduit by quick connect plugs.
In some embodiments, the gas source 103 includes one or more nitrogen generation devices configured to provide nitrogen of one or more purities and pressure to provide nitrogen to the distributed piping. In some embodiments, multiple nitrogen generation devices of gas source 103 may be distributed at different locations in the warehouse and may be controlled to be independently activated or deactivated.
In some embodiments, gas source 103 comprises a removable gas source, such as an on-board nitrogen making device or a nitrogen making vehicle. The mobile gas source can be moved to a desired location in the warehouse and accessed into the distributed network of pipes to provide the desired high purity nitrogen. The mobile air source is very beneficial to reducing the investment cost of the tobacco curing system.
Fig. 2 is a schematic diagram of the structure of an integrated monitoring system of the tobacco curing system according to one embodiment of the present invention. As shown, the integrated monitoring air conditioning station 106 includes a processor 201, an air conditioning module 202, a detection module 203, a communication module 204, and an input-output module 205. The air conditioning module 202 is electrically connected to the processor 201 and is configured to receive instructions from the processor 201 and to control a plurality of solenoid valves on the air supply and air outlet branches of the corresponding flexible air tight tent on the distributed network to which it is connected to form one or more air intake passages from the air source 103 to one or more flexible air tight tents 102 storing stacks of cigarettes and one or more air exhaust passages from the one or more flexible air tight tents 102 to the integrated monitoring air conditioning station 106 to thereby condition and/or maintain oxygen content and/or humidity in the one or more flexible air tight tents 102.
A detection module 203 is electrically connected to the processor 201 and is configured to communicate with one or more exhaust channels, receive gas from one or more of the flexible airtight tents 102, and detect an air conditioning parameter such as oxygen content and/or humidity of the gas.
The communication module 204 sends the air conditioning parameters such as oxygen content and/or humidity from the detection module 203 to a remote service platform or a field operation platform. On the other hand, the communication module 204 receives control instructions from a remote service platform or a field operation platform and transmits the control instructions to the processor 201. The processor 201 controls the air conditioning module 202 to adjust the air conditioning parameters within the specified flexible airtight tent.
The input/output module 205 includes a display for displaying the air conditioning parameters such as oxygen content and/or humidity from the detection module 203, so that a user can directly know the air conditioning parameters in one or more flexible airtight tents managed by the integrated monitoring air conditioning station 106. On the other hand, the input/output module 205 includes an input device (e.g., a keyboard or touch screen, etc.) to receive instructions from a user and to send the instructions of the user to the processor 201.
In some embodiments, the integrated monitoring air conditioning station 106 is typically disposed on a distributed pipeline network. The electromagnetic valves on the air supply branch and the air outlet branch are convenient to control nearby, and damage possibly caused by tobacco stack position operation and other ground operations can be avoided. For example, the integrated monitoring air conditioning station 106 is disposed above the curing barn.
However, the integrated monitoring of the location of the air conditioning station 106 remote from the ground may present a problem. The user is not convenient to view and use the input output module 205. In some embodiments, the integrated monitoring air conditioning station 106 includes a first housing in which the processor 201, the air conditioning module 202, the detection module 203, and the communication module 204 are disposed, and a second housing; the input-output module 205 is disposed in the second housing; the first shell and the second shell are connected in a wired mode. Thus, the first housing may be disposed on a distributed pipeline, such as above a curing warehouse; the second housing may be provided in a convenient place, such as a wall or a post near the floor. Similar embodiments also include: the detection module 203 is disposed in a first housing, and the processor 201, the air conditioning module 202 communication module 204, and the input output module 205 are disposed in a second housing. Those skilled in the art will appreciate that other discrete means may exist. These ways are also within the scope of the invention.
In some embodiments, the processor 201 is configured to receive instructions from a remote service platform, a field operations platform, or the input output module 205 and control the opening and/or closing of one or more air intake and/or exhaust passages for one or more flexible airtight tents by the air conditioning module 102.
The air conditioning module 202 controls solenoid valves on the air supply branches of a corresponding plurality of flexible air tight tents to form an air intake channel for one or more flexible air tight tents. In some embodiments, if the air conditioning module 202 conditions multiple flexible airtight tents simultaneously, the air conditioning module 202 may time-share an exhaust channel between one of the multiple flexible airtight tents to the detection module 203. That is, the detection module 203 will first detect the air conditioning parameter in one of the flexible airtight tents, then turn to detect the air conditioning parameter in the other flexible airtight tent until after traversing all the flexible airtight tents, and then return to the first flexible airtight tent. Thus, even if the air conditioning parameters in each flexible airtight tent are different, the same comprehensive monitoring air conditioning station can realize independent air conditioning control. In other embodiments, if the air conditioning parameters of the plurality of flexible air-tight tents are the same or close, the air conditioning module 202 may form an air exhaust channel between all of the plurality of flexible air-tight tents to the detection module 203 until the air conditioning parameters meet the criteria. That is, the detection module 203 will detect the air conditioning parameters after mixing all the air in the flexible airtight tent at the same time. Therefore, the simultaneous adjustment of the air conditioning parameters in a plurality of flexible airtight tents can be realized more efficiently.
In some embodiments, referring to FIG. 2, the detection module 203 is connected to an exhaust passage. The detection module 203 comprises an extraction port, an internal pipeline 2011, a fan 2012, an oxygen sensor 2013, and a humidity sensor 2014. The extraction opening is connected with the air inlet of the internal air passage 2011, and the air outlet of the internal air passage 2011 is provided with branches which are respectively connected to the oxygen sensor 2013 and the humidity sensor 2014, and simultaneously, the oxygen content and the humidity of the air from the air in the flexible airtight tent are independently detected. The gas passes through the oxygen sensor 2013 and the humidity sensor 2014, and then passes through the fan 2012 to be connected to the outside through the internal gas path 2011. In the detection module 203, the oxygen content and the humidity are detected independently, so that the detection result can be obtained more accurately.
In some embodiments, to avoid that the existing gas in the flexible channel and the gas outlet line has an influence on the accuracy of the detection result, it is necessary to know the time from the gas inside the flexible airtight tent to enter the detection module by calculation. The volume of the gas extracted by the detection module through the extraction opening in each second is known according to the revolution and the air quantity of the fan 2012, and the total volume of the gas in the flexible channel and the length of the air outlet branch is calculated according to the length of the flexible channel. Thus, the time for the gas in the flexible airtight tent to enter the detection module can be calculated. Further, the lengths of the flexible channel and the air outlet branch of different flexible airtight tents are different, and the total volumes of the air in the flexible channel and the air outlet branch are also different, so that the time for entering the air is also different. In addition, the timing of the gas entry is also different in different modes, such as the adjustment of the air conditioning parameters of the single and multiple flexible airtight tents. The detection module can pre-store different flexible airtight tents and the time of gas entering the detection module under different modes, so that a more accurate detection result is provided.
In some embodiments, the detection module 203 also receives temperature parameters from temperature sensors in a corresponding plurality of flexible, airtight tents. The communication module 204 also transmits the temperature parameter to a field operation platform or a remote service platform.
In some embodiments, the detection module 203 further comprises a gas sensor data processing unit. The gas sensor data processing unit stores a database of standard samples of different alcoholization qualities. Specifically, certain tobaccos with different alcoholization processes are used as standard samples, and volatile gases generated by the standard samples are introduced into a gas sensing data processing unit. Tobacco leaves with certain tobacco alcoholization quality, which are good, medium and bad, can be selected as standard samples; then, the signals collected by the gas sensor are recorded and a corresponding relation with alcoholization quality is established. In some embodiments, the gas sensor data processing unit comprises a gas filtering module with sequentially reduced pore diameters, and can separate gas molecules with different sizes based on molecular sieve effect gradient, so as to realize multi-component gas detection of complex atmosphere.
Fig. 3 is a schematic view of a tobacco gas conditioning system according to one embodiment of the present invention. As shown, the plurality of integrated monitoring air conditioning stations are collection points for data in the system. The comprehensive monitoring air conditioning station collects respective air conditioning data from the plurality of managed flexible airtight tents and sends the air conditioning data to the on-site operation platform and/or the remote service platform respectively.
In some embodiments, the field operation platform includes a processor, memory, communication devices, input-output devices, and displays for monitoring and adjusting the air conditioning parameters within each flexible, airtight tent at the curing barn site. As will be appreciated, when there are multiple curing vaults, the field operation platform corresponds to a comprehensive monitoring air conditioning station in the multiple curing vaults. The on-site operation platform obtains and gathers the air-conditioning parameter states in all the flexible airtight tents from all the comprehensive monitoring air-conditioning stations by utilizing the communication device, and can display the air-conditioning parameter states to on-site operators through the display. The field staff can also utilize the field operation platform to input instructions to adjust the air conditioning parameters in one or more flexible airtight tents. The on-site operation platform forwards the input instruction to the designated comprehensive monitoring air conditioning station. The comprehensive monitoring air regulating station controls the opening of electromagnetic valves on an air supply branch and an air exhaust branch; the on-site operation platform controls the distributed pipe network and the electromagnetic valves on the air source to be opened, so that an air supply channel from the air source to the appointed one or more flexible airtight tents and an air exhaust channel from the appointed one or more flexible airtight tents to the corresponding comprehensive monitoring air conditioning station are formed. And the air supply channel is used for supplying air to the flexible airtight tent, and the air-conditioning parameters in the flexible airtight tent are monitored through the comprehensive monitoring air-conditioning station, so that the air-conditioning parameters are adjusted.
In some embodiments, the remote service platform includes a communication device and one or more servers for monitoring and adjusting the air conditioning parameters within each flexible, airtight tent at the maintenance warehouse site. The remote service platform communicates with each comprehensive monitoring air conditioning station by utilizing a communication device, and obtains and gathers the air conditioning parameter states in all the flexible airtight tents. In some embodiments, the manager can log into the remote service platform and view the air conditioning parameters and input instructions within each flexible airtight tent for remote control via the presentation interface. In some embodiments, the remote service platform includes a client that a manager can view the air conditioning parameters within each flexible airtight tent by logging into. The manager can also input instructions by using the client, and then adjust the air conditioning parameters in one or more flexible airtight tents through the remote service platform. The remote service platform forwards the input instruction to the designated comprehensive monitoring air conditioning station. The comprehensive monitoring air conditioning station controls the opening of electromagnetic valves on the air supply branch and the air exhaust branch. The remote service platform or a client thereof can also communicate with the field operation platform to control the distributed pipe network and the solenoid valves on the air source to open, thereby forming an air supply channel from the air source to the designated one or more flexible airtight tents and an air exhaust channel from the designated one or more flexible airtight tents to the corresponding comprehensive monitoring air conditioning station. And the air supply channel is used for supplying air to the flexible airtight tent, and the air-conditioning parameters in the flexible airtight tent are monitored through the comprehensive monitoring air-conditioning station, so that the air-conditioning parameters are adjusted.
In other embodiments, the client of the remote service platform may be utilized as software for field operations, while the field operation platform employs a simplified design. The on-site operation platform and each comprehensive monitoring air-conditioning station are not communicated with each other, but instructions are obtained from a remote service platform so as to control the control of the air source and the electromagnetic valve on the distributed pipeline network. For example, a manager logs into a client of the remote service platform at a maintenance warehouse to view the air conditioning parameters of a plurality of flexible, airtight tents. And sending out instructions for adjusting the air conditioning parameters in the plurality of flexible airtight tents at the client side according to the requirements. After receiving the instruction, the remote service platform respectively sends the instruction to the on-site operation platform and the designated comprehensive monitoring air conditioning station. And after receiving the instruction, the on-site operation platform controls the air source to start working and opens the distributed pipeline network and the electromagnetic valve on the air source. The specified comprehensive monitoring air conditioning station controls the opening of electromagnetic valves on an air supply branch and an air exhaust branch of the specified flexible airtight tent, the air conditioning of the specified flexible airtight tent is started, and meanwhile, a detection module of the comprehensive monitoring air conditioning station starts to detect air conditioning parameters from the inside of the specified flexible airtight tent. The comprehensive monitoring air conditioning station sends the detected air conditioning parameters to a remote service platform. The remote service platform transmits the detected air conditioning parameters to a client on site. The manager can thus view in real time the change in the air conditioning parameters within the flexible air tight tent until the air conditioning parameters within the designated flexible air tight tent reach the desired parameter values. The remote service platform sends an instruction to the on-site operation platform and the designated comprehensive monitoring air conditioner station to finish air conditioner operation.
In some embodiments, the client of the remote monitoring platform of the tobacco gas conservation system of the invention can be installed on one or more of a desktop computer, a notebook computer, a smart phone, and a tablet computer. The system can be used for remotely and also can be used for receiving the air conditioning parameters such as the oxygen content, the humidity and/or the temperature of the gas in the flexible airtight tent reported by each comprehensive monitoring air conditioning station on site, so as to realize the inquiry, analysis and display of the oxygen content, the humidity and/or the temperature of the gas in the flexible airtight tent; and the control of a preset program or a user instruction can be received, so that the adjustment of the air conditioning parameters in the flexible airtight tent can be realized.
In some embodiments, the integrated monitoring air conditioning station may receive an air conditioning parameter configuration of one or more flexible air tight tents from a field operations platform or a remote services platform. A detection module for comprehensively monitoring the air conditioning station detects the air from a plurality of corresponding flexible airtight tents periodically or aperiodically; the processor determines whether the detected air-conditioning parameter complies with the air-conditioning parameter configuration. If the detection result exceeds the range determined by the air-conditioning parameter configuration, the comprehensive detection air-conditioning station can send an alarm to the on-site operation platform and/or the remote service platform. And responding by the on-site operation platform or the remote service platform, and initiating the air-conditioning parameter adjustment operation.
In other embodiments, the integrated monitoring air conditioning station may also be the initiator of the air conditioning parameter adjustment operation. A detection module for comprehensively monitoring the air conditioning station to periodically or aperiodically detect the air from one or more flexible airtight tents; the processor determines whether the detected air-conditioning parameter complies with the air-conditioning parameter configuration. And if the air conditioner parameter configuration is found to be out of the range determined by the air conditioner parameter configuration, the air conditioner station is comprehensively detected to actively initiate the air conditioner parameter adjustment operation for the flexible airtight tent. In some embodiments, the integrated monitoring air conditioning station communicates with a field operation platform. The on-site operation platform controls the air source and the electromagnetic valve on the distributed pipeline, the comprehensive monitoring air conditioning station controls the electromagnetic valve on the air supply branch and the air exhaust branch of the flexible airtight tent to form an air inlet channel and an air exhaust channel, and air conditioning parameter adjustment is implemented. In other embodiments, the integrated monitoring air conditioning station directly controls the air source and the electromagnetic valve on the distributed pipeline, and can actively implement the air conditioning parameter adjustment operation. The method has the advantages that the components participating in decision making can be reduced as much as possible, and the air conditioning parameters in the flexible airtight tent are ensured to be always in the air conditioning parameter configuration range.
Fig. 4 is a flow chart of a method of tobacco gas conditioning according to one embodiment of the present invention. As shown in the figure, the tobacco gas nursing and protecting method comprises the following steps: in step S410, a flexible airtight tent is manufactured on site to seal the tobacco stack, and the flexible airtight tent is connected to a distributed pipe network. The sealing mode of the flexible airtight tent manufactured on site in the embodiment has small influence on the operation of the tobacco stack position, and the distributed pipe network is arranged at a position which does not influence the operation of the stack position, so that the efficiency of tobacco warehouse entry is not influenced. Because the distributed pipe network and the comprehensive monitoring air conditioning station are both preset, a plurality of flexible airtight tents can be supported simultaneously. This makes the whole of the tobacco gas nursing method of the present embodiment very efficient.
In step S420, the stack of tobacco in the flexible airtight tent is subjected to oxygen reduction, insect killing and mildew removal treatment. Forming a plurality of gas passages from a gas source through a distributed network of pipes to a plurality of flexible, airtight tents in response to an insecticidal/mildewproof instruction from a field operation platform or a remote service platform; and (3) performing oxygen reduction on the plurality of flexible airtight tents. In some embodiments, the oxygen content within the flexible, airtight tent is reduced to 1.0%,0.5%, or 0.2% for insecticidal and mildew-removal purposes. In some embodiments, a mildew remover, such as chlorine dioxide, may also be released into the tobacco stack during this step to better achieve the removal of the mildew.
In step S430, the air conditioning parameters within the flexible airtight tent are maintained for a time sufficient to achieve insecticidal/fungicidal. After being sealed by the flexible airtight tent, the tobacco stack position is isolated from the outside; the filter plates are arranged on the air supply branch and the air outlet branch, so that insect eggs and mould spores can be filtered. Thus, eggs and mold existing outside will not enter the flexible airtight tent again. The air-tight tent can achieve the effects of insect killing, insect prevention, mould prevention and bacteria inhibition only by replacing the air-tight tent with oxygen in a reduced level for a period of time. Thus, not only the workload can be greatly reduced, but also the quality of tobacco can be improved.
In some embodiments, the insecticidal/fungicidal operation of step S430 uses a lower oxygen content than the prior art to achieve a better insecticidal/fungicidal effect. In some embodiments, the oxygen content of the pesticide/mold is less than 1.0% and the time of the pesticide/mold is between 5 and 15 days (e.g., at an oxygen content of 1.0% and a time of the pesticide/mold removal of 15 days). Preferably, in some embodiments, the oxygen content of the pesticide/mold removal is 0.5% and the time to pesticide/mold removal is 10 days. More preferably, in some embodiments, the oxygen content of the pesticide/mold removal is 0.2% and the time to pesticide/mold removal is 5 days.
In some embodiments, during the insecticidal/mildewproof process of step S430, a mildewproof agent, such as chlorine dioxide, may be applied to the plurality of flexible tents to assist in enhancing the mildewproof effect.
Throughout step S430, the integrated monitoring air conditioning station periodically detects the oxygen content within the plurality of flexible, airtight tents. If the oxygen content in the flexible airtight tent is higher than the set insecticidal/mildew-removal maximum oxygen content, the air conditioning operation for the flexible airtight tent is started until the oxygen content in the flexible airtight tent reaches the set insecticidal/mildew-removal oxygen content.
In some embodiments, after the insecticidal/mildewproof operation, the air conditioning operation for each flexible airtight tent is started, the oxygen content is increased, and the humidity is controlled to reach the set alcoholization air conditioning parameters, so as to accelerate the alcoholization of the tobacco.
Because tobacco alcoholization time is relatively long, in some embodiments, the comprehensive monitoring air conditioning station is used as core equipment, and the oxygen content and the humidity in the corresponding flexible airtight tent are periodically detected by utilizing the comprehensive monitoring air conditioning station. In response to the oxygen content and/or humidity within the one or more flexible, airtight tents being outside of a predetermined range; the integrated monitoring air conditioning station issues a prompt to the field operation platform or the remote service platform to initiate air conditioning operations for the flexible airtight tent or tents. In particular, the on-site operation platform cooperates with the integrated monitoring air conditioning station to activate the air supply and to open the distributed piping and solenoid valves on the air supply and air outlet branches to form a plurality of air passages from the air supply through the distributed piping network to the flexible airtight tent or tents. And introducing high-purity nitrogen subjected to air conditioning into the plurality of flexible airtight tents, discharging the gas in the plurality of flexible airtight tents through the distributed pipe network, and enabling the gas discharged from the plurality of flexible airtight tents to pass through the detection module of the comprehensive monitoring air conditioning station. The air conditioning parameters within the flexible air tight tent are maintained or adjusted throughout the alcoholization cycle. In response to a user command to adjust a conditioning parameter or the oxygen content and/or humidity within a plurality of the flexible airtight tents being outside a predetermined range; the comprehensive monitoring air regulating station forms a plurality of air channels from an air source to a plurality of flexible airtight tents through a distributed pipe network by controlling the air regulating modules to open corresponding electromagnetic valves, and forms a plurality of air channels from one of the plurality of flexible airtight tents to the detection module and forms a plurality of air channels from the plurality of flexible airtight tents to the detection module in a time-sharing manner; and introducing high-purity nitrogen subjected to air conditioning into the plurality of flexible airtight tents, discharging the gas in the plurality of flexible airtight tents through the distributed pipe network, and detecting the oxygen content and the humidity of the gas discharged by the plurality of flexible airtight tents through the detection module of the comprehensive monitoring air conditioning station. When the detection module detects that the air-conditioning parameters in the flexible airtight tent accord with the instruction of a user or reach a preset range, the comprehensive monitoring air-conditioning station closes the corresponding electromagnetic valve by controlling the air-conditioning module.
Fig. 5 is a flow chart of a method of tobacco alcoholization air-conditioning according to an embodiment of the invention. In step S510, the warehouse is modified into one or more airtight spaces to realize the sealing of multiple stacks of tobacco. The airtight space includes an airtight warehouse and a flexible airtight tent. When the warehouse is changed into a plurality of airtight spaces, different kinds of tobacco are placed in the airtight spaces, and the method is suitable for simultaneously alcoholizing different kinds of tobacco.
When the airtight space is the airtight tent, the airtight tent has advantages of convenient installation and convenient movement, and is suitable for simultaneously alcoholizing different kinds of tobacco. First, a part of the airtight tent is arranged at a plurality of positions where the tobacco stacks are to be stored. A portion of the air-tight tent includes at least a bottom surface of the air-tight tent, and the material of the bottom surface may be a flexible air-tight material such as PVC film, air-tight cloth, or the like.
A plurality of stack positions are placed on a portion of the airtight tent where the plurality of positions of stack positions are stored. The tobacco buttress position is placed on the bottom surface of airtight tent, and tobacco buttress position can be placed on the support frame, and the interval fixed distance between the support frame guarantees ventilation smoothness between the tobacco to make things convenient for the staff to pass through.
A plurality of airtight tents are formed at a plurality of positions where the tobacco stack positions are stored, and the plurality of tobacco stack positions are enclosed in the plurality of airtight tents. And after the tobacco stack is placed on the bottom surface, installing the top surface and the surrounding vertical surfaces of the airtight tent on the ground, and hermetically storing the tobacco stack in the airtight tent. One vertical face of the airtight tent can be provided with an airtight door, and the size of the airtight door can be determined according to the volume of the airtight tent.
In step S520, a plurality of positions for storing the tobacco stacks in the plurality of airtight spaces are connected to the distributed gas pipe network. The distributed gas pipe network is respectively communicated with a plurality of airtight spaces, and gas parameters in the airtight spaces can be adjusted. Gas parameters include, but are not limited to, humidity and oxygen content. The distributed gas pipe network can independently adjust the gas parameters in a certain airtight space according to tobacco types, so that all types of tobacco are in the optimal gas parameters, and the alcoholization speed and quality of the tobacco are improved.
In step S530, the distributed gas pipe network is used to perform the insecticidal operation on the tobacco stack positions in the airtight spaces. Various mold can be attached to the surfaces of tobacco leaves, and the mold is easy to breed and reproduce in a proper environment, so that the tobacco leaves are mildewed and deteriorated. In the alcoholization process of tobacco, the tobacco encounters high-humidity environmental conditions, the temperature is also suitable for mould propagation, and if the tobacco is found not timely, the problem that part of tobacco is mildewed and cannot be used is caused. Therefore, the insecticidal operation on the tobacco stack is a necessary and important step for alcoholizing in an oxygen-enriched environment.
The insecticidal operation on the tobacco stacks in the plurality of airtight spaces comprises: and introducing nitrogen into the airtight space, and adding a proper amount of deoxidizer under a proper low-oxygen state. In one embodiment, the amount of oxygen scavenger used is determined based on the volume of the airtight space. Oxygen content in the airtight space can be quickly reduced by combining the deoxidizer with nitrogen filling and oxygen reduction. Further, the oxygen content can be reduced to 0.2% -2%; preferably, the insecticidal oxygen content in the airtight space is reduced to and maintained below 0.5%, so that eggs, moulds and the like in tobacco leaves can be thoroughly killed. Further, by means of oxygen reduction by combining the deoxidizer and the nitrogen filling, 2/3 of deoxidizer can be saved, and the tobacco insecticidal cost is greatly reduced.
In one embodiment, the impurities of the gas entering the airtight space are filtered, wherein the impurities include dust contaminants, aerogel, mold spores and eggs. To avoid introducing new eggs and moulds during the insecticidal period, it is necessary to ensure that clean gas is filled. The application can utilize a multistage composite belt-pressure filtration technology, the filtration grade can reach 0.01 mu m, and impurities in gas can be removed efficiently.
In step S540, oxygen-enriched gas is introduced into the multiple airtight spaces by using the distributed gas pipe network to achieve oxygen-enriched accelerated alcoholization. Wherein the types of tobacco stacks in different airtight spaces can be different. Tobacco is classified into various kinds according to the place of production, year, location of tobacco, grade of tobacco, and use of tobacco. The proper alcoholization air-conditioning parameters of different types of tobacco leaves are not the same. Alcoholization parameters include, but are not limited to, temperature, relative humidity, and oxygen content. For example, a tobacco stack of Yunnan is placed in airtight space A, and a tobacco stack of Henan is placed in airtight space B. Because the climate in the south is moist and the north is dry, the moisture content of the tobacco stack in the producing area in Yunnan is higher than that in Henan in the producing area, and the proper alcoholization relative humidity is higher. Therefore, the oxygen content and/or humidity within the different airtight spaces are different. Further, the times at which the tobacco stacks in the different airtight spaces reach the alcoholization peak are different. According to the method, the time for the tobacco stack position to reach the alcoholization peak value is related to the type of the tobacco and the alcoholization air-conditioning parameter, and the alcoholization speed of the tobacco can be accelerated by adopting the proper alcoholization air-conditioning parameter.
In one embodiment, the oxygen content in the airtight space is controlled to be 23% -32%; controlling the temperature in the airtight space at 20-35 ℃; controlling the relative humidity in the airtight space to be 40% -65%. Preferably, the oxygen content in the airtight space is controlled to 25% -30%; controlling the temperature in the airtight space to be 20-30 ℃; the relative humidity in the airtight space is controlled to 55% -65%. When the alcoholization air-conditioning parameters in the airtight space are controlled in a range suitable for alcoholization of tobacco, the alcoholization period of the tobacco can be controlled to be 12-30 months. Compared with the traditional alcoholization period, the scheme of the application can shorten the alcoholization time by at least 6 months and greatly improve the alcoholization efficiency.
According to the application, experimental analysis is utilized to study the influence of alcoholization air-conditioning parameters such as high temperature, oxygen enrichment and the like on the alcoholization speed of tobacco leaves, the corresponding relation between the alcoholization air-conditioning parameters and the alcoholization speeds of different tobacco leaves is established, and finally, the optimal alcoholization air-conditioning parameters of different production places, different years and different purposes are obtained, so that the optimal matching of the alcoholization air-conditioning parameters and the quality of the tobacco leaves is realized, and finally, the purpose of shortening the alcoholization period of the tobacco leaves is realized. The tobacco gas conditioning and protecting system can realize automatic detection and accurate regulation and control of parameters such as temperature, relative humidity, oxygen content and the like, accurately regulate and control the parameters such as temperature, relative humidity, oxygen content and the like in an airtight space, meet proper alcoholization conditioning parameters of different types of tobacco and ensure the alcoholization quality of the tobacco.
In one embodiment, the green impurity gas in the airtight space is periodically discharged to improve the cleanliness in the airtight space. The tobacco gas nursing and protecting system has a self-cleaning function, and can regularly remove green miscellaneous gas or other harmful gases in the airtight space, so as to ensure the alcoholization quality of tobacco in the airtight space. Wherein, the green miscellaneous gas in the airtight space can be discharged every 1-4 weeks.
In step S550, the alcoholization quality of the tobacco is predicted according to the tobacco alcoholization curve corresponding to the alcoholization air-conditioning parameter in the airtight space. According to the application, through experimental analysis, tobacco alcoholization curves with alcoholization quality and alcoholization time change under different alcoholization air-conditioning parameters are obtained. According to the tobacco alcoholization curve corresponding to the current alcoholization time and the alcoholization air-conditioning parameter, the alcoholization quality of the tobacco can be predicted. Further, one or more of oxygen content, humidity and temperature in the plurality of airtight spaces is monitored by utilizing a comprehensive air conditioning monitoring station connected with the distributed pipe network, so that the stability of the oxygen content, humidity and temperature in the airtight spaces is ensured.
The alcoholization quality of the tobacco can be judged according to physicochemical indexes and artificial fine. The alcoholization quality of tobacco can be classified into lower, middle, upper and superior according to the alcoholization quality of tobacco. When the alcoholization quality of the tobacco is the same, the tobacco alcoholization is considered to be finished, and the delivery standard is reached. When the quality of tobacco is excellent, it is considered that the best alcoholization quality is achieved.
Aiming at the problem that deviation occurs in predicted tobacco demand, the application provides a dynamic tobacco air-conditioning alcoholization method, according to the latest production plan, alcoholization air-conditioning parameters are timely adjusted, so that the quantity of tobacco subjected to alcoholization corresponds to the quantity of tobacco production plans, and the normal execution of the tobacco production plans is ensured.
Fig. 6 is a method of dynamic tobacco modified atmosphere alcoholization according to an embodiment of the application. In step S610, the number of tobacco currently at the alcoholization peak is obtained. The quantity of tobacco at the alcoholization peak, namely the tobacco stack position, reaches the optimal alcoholization quality, and the quality of the tobacco is excellent at the moment. When the quality of the tobacco is excellent, the aroma of the tobacco reaches the optimal state, the green miscellaneous gas is reduced, the irritation is reduced, and the taste is more comfortable. After the quality of the tobacco is excellent, the quality of the tobacco can be maintained for a period of time, if the alcoholization air-conditioning parameters are not changed, the tobacco can be continuously alcoholized, and the parameters such as aroma and the like can be deteriorated. Therefore, the tobacco at the alcoholization peak value is used as soon as possible, and is produced into commodity tobacco; or changing the alcoholization air-conditioning parameters of the tobacco at the alcoholization peak value to keep the quality of the tobacco in a state of excellent.
In one embodiment, when the tobacco reaches the alcoholization peak value, the continuous alcoholization rate of the tobacco can be slowed down by adjusting the air conditioning parameter in the airtight space, so that the tobacco is kept at the alcoholization peak value for a long time, and the optimal quality of the tobacco is ensured. The alcoholization peak-hold parameters include peak-hold oxygen content, peak-hold temperature, and peak-hold relative humidity. Wherein the peak-hold oxygen content is less than or equal to 10%, and the peak-hold temperature is preferably less than 25 ℃; the peak hold relative humidity is 55% -65%. The oxygen content is reduced to below 6%, preferably 2% -5%, and when the peak value holding temperature is within 25 ℃, the activity of enzymes in tobacco leaves can be reduced, the processes of decomposition, conversion and synthesis of chemical components in the tobacco leaves are inhibited, and the chemical components in the alcoholization peak value are kept unchanged or changed slowly.
According to the application, the alcoholization process of the tobacco is inhibited in a mode of reducing oxygen and temperature, so that the aim of maintaining the best tobacco quality is fulfilled. In addition, the oxygen content in the airtight tent is reduced, so that the growth of worm mould on tobacco can be inhibited, and the problem of mould generation of the tobacco is avoided. The oxygen content in the tobacco is reduced, and the excessive color change of the tobacco can be effectively slowed down, so that the color of the tobacco can be kept to be good. The oxygen content in the airtight tent can be quickly reduced to below 6% by using the tobacco gas nursing system. In addition, the airtight tent has good air tightness, and the oxygen content in the airtight tent is ensured to be stable for a long time.
In one embodiment, the tobacco at the peak alcoholization has a shelf life in the peak alcoholization retention parameter of 0-12 months. Tobacco in the alcoholization peak is stored in the alcoholization peak holding parameter, and although the alcoholization process of the tobacco can be inhibited, the storage time is too long, and the alcoholization quality of the tobacco can be reduced. And, tobacco is preserved in the peak-hold parameters for a long time, which takes up excessive funds and increases the capital pressure of the tobacco plant.
In step S620, the planned production quantity of tobacco for a period of time in the future is acquired. The planned quantity of tobacco includes the type of commodity smoke planned to be produced, the production time, and the quantity of production. Wherein, the commodity cigarette is prepared by mixing a plurality of tobaccos according to a proportion. Different types of commodity cigarettes, corresponding tobacco types and mixing proportions are different. The number of tobacco planned productions in the future is formulated according to the past production experience, but the market changes, and the tobacco planned productions in the future are adjusted to meet the latest market demands. The planned production quantity of tobacco in a future period of time may be updated at fixed intervals. Wherein the fixed time may be 1-4 weeks.
In step S630, the demand time and the demand quantity of tobacco at the peak alcoholization in the future period are determined according to the planned production quantity of tobacco and the quantity of tobacco at the peak alcoholization in the future period. When commodity cigarettes are produced, tobacco which is currently at an alcoholization peak value is preferentially used, so that the stock quantity of the tobacco can be reduced, and the fund turnover rate is improved. When the quantity of the tobacco at the alcoholization peak value is insufficient to meet the planned production quantity of the tobacco in a future period, the demand time and the demand quantity of the tobacco at the alcoholization peak value are determined according to the difference value of the quantity of the tobacco at the alcoholization peak value.
In step S640, an alcoholization air-conditioning parameter is determined according to the demand time, where the alcoholization air-conditioning parameter includes at least oxygen content. The alcoholization gas adjustment parameters are different, and the time for the tobacco to reach the alcoholization peak value is also different. Alcoholization parameters include oxygen content, temperature and relative humidity. The oxygen content is 23% -30%; the temperature is 25-35 ℃; the relative humidity is 40% -65%. Further, alcoholization air-conditioning parameters are also determined according to the tobacco types. The tobacco species will vary, as will the time to reach the peak alcoholization.
In one embodiment, determining the alcoholization-air-conditioning parameter based on said demand time comprises: obtaining one or more alcoholization curves of which alcoholization time is changed along with the oxygen content; and determining optimal alcoholization air-conditioning parameters based on the demand time and the one or more alcoholization curves. According to experimental analysis, an alcoholization curve of which alcoholization time is changed along with oxygen content under the condition of a certain temperature and humidity can be summarized. According to the required time, the optimal alcoholization air-conditioning parameter can be determined in one or more alcoholization curves. The alcoholization parameters in the airtight tent are adjusted, so that the tobacco in the airtight tent is alcoholized exactly at the required time, the overstock of excessive tobacco stock is not caused, and the requirement of the planned production quantity of the tobacco is not influenced.
In one embodiment, in response to determining a plurality of alcoholization air-conditioning parameters based on the time of demand and one or more alcoholization curves: judging the similarity between the alcoholized air-conditioning parameters and the air-conditioning parameters in the current airtight tent; and determining the alcoholized air-conditioning parameter with the highest similarity with the air-conditioning parameter in the current airtight tent as the optimal alcoholized air-conditioning parameter. The method has the advantages that one demand time can possibly determine a plurality of alcoholization air-conditioning parameters on a plurality of alcoholization curves, and the time for adjusting the air-conditioning parameters can be shortened and the working efficiency can be improved by judging the similarity between the plurality of alcoholization air-conditioning parameters and the air-conditioning parameters in the current airtight tent. For example, the required time is 20 months, and the alcoholization curve 1 is an alcoholization curve of which the alcoholization time varies with the concentration of oxygen content at 30 ℃ and 60% humidity; alcoholization curve 2 is an alcoholization curve in which alcoholization time varies with oxygen content concentration at a temperature of 30℃and a humidity of 65%. According to the required time, the corresponding oxygen content is found to be 29% in the alcoholization curve 1 and 24% in the alcoholization curve 2. From this, alcoholization air-conditioning parameter 1 is: oxygen content 29%, temperature 30 ℃ and humidity 60%; the alcoholization air-conditioning parameter 2 is as follows: oxygen content 24%, temperature 30 ℃ and humidity 65%. The current air conditioning parameters in airtight tents are known as: oxygen content 21%, temperature 30 ℃ and humidity 65%. And comparing the alcoholization air-conditioning parameter 1, the alcoholization air-conditioning parameter 2 and the similarity of the air-conditioning parameter in the current airtight tent to obtain that the alcoholization air-conditioning parameter 2 is closest to the air-conditioning parameter in the current airtight tent, and adjusting the air-conditioning parameter in the airtight tent to the alcoholization air-conditioning parameter 2.
In one embodiment, in response to the demand time not being within the range of one or more alcoholization curves: determining a closest alcoholization time based on the one or more alcoholization curves and the demand time; and determining an optimal alcoholization air-conditioning parameter according to the closest alcoholization time. For example, if one or more alcoholization curves vary from 12 months to 30 months, then the alcoholization air-conditioning parameter corresponding to an alcoholization time of 18 months is determined to be the closest alcoholization time. Therefore, any required time can be ensured, and the optimal alcoholization air-conditioning parameter can be determined.
In step S650, the number of airtight tents for which the alcoholization air-conditioning parameter needs to be set or adjusted is determined according to the required number. The required amount may be weight and the unit may be tons. The required number may also be the number of tobacco bins, each tobacco bin corresponding to a fixed weight of tobacco. For example, the required amount is 28 tons, and the weight of the tobacco stack in each airtight tent is 3 tons, so that 10 airtight tents of the tobacco stacks need to be set or adjusted to meet the requirement of planned production of tobacco.
In step S660, the air conditioning parameters in the airtight tent for which the alcoholization air conditioning parameters need to be set or adjusted are set or adjusted to the determined alcoholization air conditioning parameters. And setting or adjusting the air-conditioning parameters of the airtight tents with the corresponding number to the determined alcoholization air-conditioning parameters, so that the tobacco stack positions in the airtight tents with the corresponding number are exactly in the required time, the alcoholization process is completed, the tobacco reaches the alcoholization peak value, and the alcoholization quality is excellent. Thus, the requirement of the tobacco production plan can be met, and excessive stock backlog is not caused.
The application designs a comparison test and researches the relation between different tobacco alcoholization parameters and tobacco alcoholization quality.
Experimental design:
table 1: tobacco alcoholization quality comparison test parameter design under different oxygen content and humidity
By referring to the data, the proper temperature for alcoholizing the tobacco is 20-35 ℃, so that the alcoholizing temperature in the experiment of the application is 30 ℃.
(II) experimental steps:
firstly, selecting the higher tobacco flakes at the middle and upper parts of the same grade, variety and batch, selecting the higher tobacco flakes as experimental raw materials, and carrying out physical and chemical index detection and quality control judgment to obtain initial values of experimental initial values;
secondly, regulating and controlling tobacco alcoholization parameters of different test piece cigarettes according to experimental design respectively, wherein parameter regulating and controlling errors are less than or equal to 1%;
thirdly, placing the test piece cigarettes into a plurality of experimental containers after insecticidal operation;
fourth, tobacco alcoholization parameters in different test containers are monitored, and the stability of the tobacco alcoholization parameters is ensured;
fifthly, sampling and testing once every 3 months of the experiment until the experiment is finished in 30 months;
and sixthly, after the experiment is finished, analyzing and sorting the experimental data and reporting the junction item.
(III) at 30 ℃, sampling test results within 30 months are as follows:
table 2: influence of different oxygen contents and different action times on tobacco alcoholization quality (relative humidity 55%)
Table 3: influence of different oxygen contents and different action times on tobacco alcoholization quality (relative humidity 60%)
Table 4: influence of different oxygen contents and different action times on tobacco alcoholization quality (relative humidity 65%)
(IV) Experimental analysis
Fig. 7A-7C are line graphs of tobacco alcoholization quality versus alcoholization time according to an embodiment of the invention. Referring to fig. 7A, the tobacco alcoholization quality was superior at the earliest 27 months for the samples under conditions of oxygen content of 21% and 23% at 30 ℃ and 55% relative humidity in the tobacco alcoholization parameters. When the tobacco is at a temperature of 30 ℃, the relative humidity is 55%, and the oxygen content is between 21% and 30%, the quality of alcoholization is not excellent within 30 months.
Referring to fig. 7B, the tobacco alcoholization quality was superior at 18 months at the earliest under the condition that the oxygen content was 30% at 30 ℃ and 60% relative humidity in the tobacco alcoholization parameters; under the condition that the oxygen content is 28%, the tobacco alcoholization quality is higher when the sample is 24 months at the earliest; at the initial 27 months of the samples, the tobacco alcoholization quality was superior at the oxygen content of 21%, 23% and 25%, respectively.
Referring to fig. 7C, the tobacco alcoholization quality was superior when the sample was 18 months at the earliest under the conditions that the temperature in the tobacco alcoholization parameters was 30 ℃ and the relative humidity was 65% and the oxygen content was 25%, 28% and 30%, respectively; under the conditions that the oxygen content is 28% and the oxygen content is 30%, the tobacco alcoholization quality of the sample is excellent at the earliest 30 months.
In summary, in the tobacco alcoholization parameters, when the temperature is 30 ℃, the oxygen content is 25% -30% and the relative humidity is 60% -65%, the time for achieving the best quality of tobacco alcoholization is the shortest. Preferably, in the tobacco alcoholization parameters, when the temperature is 30 ℃, the oxygen content is 28% and the relative humidity is 65%, the tobacco alcoholization quality is superior at 18 months at the earliest and is superior at 30 months at the earliest. The tobacco is placed in a suitable alcoholization parameter, and the alcoholization period of the tobacco can be controlled to be 12-30 months. Compared with the traditional alcoholization method, the scheme of the application can shorten the alcoholization period by at least 6 months, and improves the alcoholization efficiency of tobacco.
Fig. 8 is a schematic representation of a tobacco alcoholization curve according to an embodiment of the application. Tables 5 and 6 were obtained based on the time when the earliest alcoholization quality was reached based on the oxygen content of different concentrations according to the experimental data in tables 3 and 4, and curves 1 and 2 were obtained according to the data in tables 5 and 6, respectively.
Table 5: optimal alcoholization time (relative humidity 60%) for different oxygen contents
Table 6: optimal alcoholization time (relative humidity 65%) for different oxygen contents
Referring to fig. 8, the horizontal axis of the alcoholization curve is oxygen content concentration in units; the vertical axis is alcoholization duration in months. The temperature corresponding to curve 1 is 30℃and the relative humidity is 60%; curve 2 corresponds to a temperature of 30 c and a relative humidity of 65%.
The curve 1 corresponds to the formula y= -1.0714x 2 +4.3286x+23.4；
The formula corresponding to curve 2 is: y= 0.4286x 2 -4.3714x+28.8；
From curves 1 and 2, one or more alcoholization air-conditioning parameters can be determined from the alcoholization time. Therefore, the air conditioning parameters in the airtight tent can be adjusted, so that the alcoholization time of the tobacco can be adjusted, and the method has important significance for the production plan of the finished tobacco.
The above embodiments are provided for illustrating the present invention and not for limiting the present invention, and various changes and modifications may be made by one skilled in the relevant art without departing from the scope of the present invention, therefore, all equivalent technical solutions shall fall within the scope of the present disclosure.

Claims (7)

1. A method of dynamic tobacco air-conditioning alcoholization comprising:
acquiring the quantity of tobacco currently in an alcoholization peak value;
acquiring the planned production quantity of tobacco in a future period of time;
determining the demand time and the demand quantity of the tobacco at the alcoholization peak value in a future period according to the planned production quantity of the tobacco and the quantity of the tobacco at the alcoholization peak value in the future period;
Determining an alcoholization air-conditioning parameter according to the demand time, wherein the alcoholization air-conditioning parameter at least comprises oxygen content;
determining the number of airtight tents needing to set or adjust the alcoholization air-conditioning parameters according to the required number; and
setting or adjusting the air-conditioning parameters in the airtight tent, which need to be set or adjusted, to the alcoholized air-conditioning parameters as determined;
wherein, determining the alcoholization air-conditioning parameter according to the demand time comprises: obtaining one or more alcoholization curves of which alcoholization time is changed along with the oxygen content; and determining an optimal alcoholization air-conditioning parameter based on the demand time and the one or more alcoholization curves; wherein in response to determining a plurality of alcoholization air-conditioning parameters based on said demand time and one or more of said alcoholization curves: judging the similarity between the alcoholized air-conditioning parameters and the air-conditioning parameters in the airtight tent at present; and determining an alcoholization air-conditioning parameter with the highest similarity with the current air-conditioning parameter in the airtight tent as an optimal alcoholization air-conditioning parameter in the plurality of alcoholization air-conditioning parameters; wherein, in response to the demand time not being within the range of one or more of the alcoholization curves: determining a closest alcoholization time based on one or more of the alcoholization curves and the demand time; and determining an optimal alcoholization air-conditioning parameter according to the closest alcoholization time.
2. The method of claim 1, wherein the oxygen content is 23% -30%.
3. The method of claim 1, the alcoholization-modified atmosphere parameters further comprising a temperature and a relative humidity, the temperature being between 25 ℃ and 35 ℃; the relative humidity is between 40% and 65%.
4. The method of claim 1, further comprising: and adjusting the air conditioning parameter of the tobacco at the alcoholization peak value to the alcoholization peak value maintaining parameter.
5. The method of claim 4, wherein the alcoholization peak hold parameter comprises: peak hold oxygen content, peak hold temperature, and peak hold relative humidity; the peak hold oxygen content is less than or equal to 10%.
6. The method of claim 4, wherein the peak hold temperature is less than 25 ℃; the peak maintains the relative humidity at 55% -65%.
7. The method of claim 4, wherein the tobacco at the peak alcoholization has a shelf life in the peak alcoholization retention parameter of 0-12 months.
CN202211326109.5A 2022-10-27 2022-10-27 Dynamic tobacco gas regulating alcoholization method Active CN115530412B (en)

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