CN108378406B - Temperature and humidity control method and system for moisture regain area of tobacco flake redrying machine - Google Patents
Temperature and humidity control method and system for moisture regain area of tobacco flake redrying machine Download PDFInfo
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- CN108378406B CN108378406B CN201810321427.XA CN201810321427A CN108378406B CN 108378406 B CN108378406 B CN 108378406B CN 201810321427 A CN201810321427 A CN 201810321427A CN 108378406 B CN108378406 B CN 108378406B
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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
- A24B3/00—Preparing tobacco in the factory
- A24B3/10—Roasting or cooling tobacco
Abstract
The invention discloses a temperature and humidity control method and system for a moisture regain area of a tobacco flake redrying machine, and relates to the technical field of tobacco flake redrying. The temperature and humidity control method comprises the following steps: dividing the moisture returning area into three areas from the feed inlet to the discharge outlet; acquiring deviation and deviation change rate; acquiring a limit value of the deviation change rate, adopting a fuzzy PID control method for zone control, and dividing into 3 control ranges according to the limit value of the deviation change rate; acquiring a real-time deviation change rate ec, and adjusting the temperature and humidity of each area by adopting a partitioned intelligent PID control algorithm; controlling the steam amount of the injection and adjusting the temperature by controlling the opening of the pneumatic membrane valve; the atomization water quantity sprayed is controlled by controlling the on-off of the atomization water path electromagnetic valve, and the humidification quantity is adjusted. The control is carried out through a zone control mode, so that the control is more accurate, and each target parameter can be adjusted according to the water content and the temperature of the outlet tobacco leaves, so that the tobacco leaves with more stable quality are obtained.
Description
Technical Field
The invention relates to the technical field of tobacco flake redrying, in particular to a temperature and humidity control method and a temperature and humidity control system for a moisture regain area of a tobacco flake redryer.
Background
Moisture regaining is a very important process in tobacco redrying, and tobacco absorbs moisture in a high-temperature and high-humidity environment to meet the requirement of set moisture content. In the process of dampening, the existing equipment adopts a conventional PID control method, the temperature and the humidity of circulating air are improved through steam sprayed by a steam pipe, and water is sprayed at the bottom of a dampening area in a mist form through a water nozzle and a steam-water mixing nozzle to adjust the humidity; and simultaneously, combining the detection results of the moisture detector and the temperature detector, and adjusting the steam inlet quantity and the water inlet quantity by adjusting the pressure of the pressurizing pump and the opening degree of the steam-water mixing nozzle valve so as to control the temperature and the moisture of the material, thereby obtaining the tobacco leaves meeting the requirements. When the material temperature is high or the water adding requirement is small, the steam inlet amount of the steam is reduced, at the moment, atomized particles of water are large, water drops are quickly formed after spraying, and the water drops are discharged through condensed water to be wasted. In the existing design, the reasonable layout of space is not considered, the moisture absorption of the tobacco leaves on the left, the middle and the right of a mesh belt is not uniform, the injection quantity of saturated steam and a mixing nozzle needs to be adjusted frequently, and the parameters are mutually interfered and cross-influenced, so that the moisture temperature of the processed tobacco leaves is not uniform, and the sensory quality fluctuation is large. More time, the tobacco leaf quality is difficult to guarantee by depending on the manual adjustment of experienced workers.
Disclosure of Invention
The invention aims to provide a temperature and humidity control method and a temperature and humidity control system for a moisture regain area of a tobacco piece redrying machine, and solves the problem of large tobacco quality fluctuation caused by mutual interference caused by multi-parameter blind adjustment.
In order to solve the technical problems, the invention adopts the following technical scheme: the temperature and humidity control method for the moisture regain area of the tobacco flake redrying machine is characterized by comprising the following steps of:
a. dividing the moisture regaining area into three areas from the feed inlet to the discharge outlet, wherein the three areas are a moisture regaining first area, a moisture regaining second area and a moisture regaining third area respectively, and setting system set values of the areas according to experience;
b. obtaining deviation and deviation change rate: the method comprises the following steps that a system is set to a value x, a sensor obtains an indoor data acquisition value y, the x and the y are sent to a controller PLC, a deviation e is obtained through comparison of the indoor data acquisition value y and the x and the y, the deviation e is derived by taking time as a variable, and a deviation change rate ec is obtained;
c. obtaining a limit value of the deviation change rate ec, and adopting a fuzzy PID control method to control in a partition mode: acquiring an upper limit | ec1| of a minimum interval and a lower limit | ec2| of a maximum interval of an error change rate ec in a control interval, and | ec1| ec2| of the error change rate ec; the range I is (0, | ec1|), the deviation change rate amplitude of the set value distance acquisition value is small, and the moisture regain three region is correspondingly controlled; the range II is defined as (| ec1|, | ec2|), the range II shows that the deviation change rate amplitude of the set value from the acquisition value is moderate, and the range II corresponds to the control moisture regain area; the range III is (| ec2|, + ∞), the range III shows that the range of the deviation change rate of the set value from the acquisition value is large, and the range corresponds to a control moisture regain area;
d. acquiring a real-time deviation change rate ec, and adjusting the temperature and humidity of each area by adopting a partition intelligent PID control algorithm: controlling the steam amount of the injection and adjusting the temperature by controlling the opening of the pneumatic membrane valve; the atomization water quantity sprayed is controlled by controlling the on-off of the atomization water path electromagnetic valve, and the humidification quantity is adjusted.
The further technical proposal is that the system set value is the temperature set value of each area, and the collection value is the temperature collection value of each area; the calculation formula of the opening adjustment amount u (t) of the pneumatic membrane valve in the step d is as follows:
wherein:
is a proportional gain;
is an integration time constant;
is a differential time constant;
is the deviation of the collected value from the set value.
The set value of the system is the set moisture content of the tobacco leaves, and the collection value is the moisture content of the tobacco leaves detected by a moisture meter at an outlet; the number of nozzles to be opened in step d
The calculation formula of (a) is as follows:
wherein: l is the tobacco flake flow, namely the weight of the tobacco flakes entering the moisture regain area in unit time;
the moisture content of the tobacco leaves detected by a moisture meter at an inlet;
the moisture content of the tobacco leaves detected by a moisture meter at an outlet;
setting the moisture content of the tobacco leaves;
the value is the influence value of steam on the moisture content of the tobacco leaves;
effective utilization rate of atomized water;
is the atomizing amount of the nozzle, namely the water spraying amount of the nozzle in unit time.
The further technical proposal is that
Setting the influence value of steam on the moisture content of the tobacco leaves as 1% according to an empirical value; s is the effective utilization rate of the atomized water and is set to be 90% according to an empirical value.
The temperature and humidity control system for realizing the temperature and humidity control method in the moisture regain area of the tobacco flake redrying machine is characterized by comprising the following steps of: the device comprises a control system, a first moisture regain area, a second moisture regain area and a third moisture regain area, wherein the top of each moisture regain area is provided with a heating pipe, the bottom of each moisture regain area is provided with a drainage channel, and a fan is independently arranged above one side of each moisture regain area; a first moisture meter is arranged at an inlet of the first moisture regaining area, a second moisture meter for measuring the moisture of the tobacco leaves is arranged at an outlet of the third moisture regaining area, and the first moisture meter and the second moisture meter are in signal connection with a control system; the bottom of each moisture regain area is provided with a steam outlet pipe which is connected to the main steam pipeline through a pneumatic membrane valve; more than 2 groups of atomized water pipes are arranged at the bottom of each moisture regain area, more than 3 atomized nozzles are uniformly distributed on the atomized water pipes and are connected to a main atomized water pipeline through electromagnetic valves; each moisture return area is provided with a temperature sensor in signal connection with the control system, and an electronic weighing device is arranged at the inlet of the tobacco piece redrying machine.
The steam outlet pipe is arranged on two sides of each moisture regain area along the width direction of each moisture regain area; atomized water pipe is provided with 4 groups, and every group includes 2 atomized water pipe, and wherein 2 groups set up in each moisture regain district both sides along width direction relatively, and 2 groups set up in each moisture regain district both sides along length direction relatively in addition.
The working principle is as follows: dividing a moisture regain area into three areas from a feed port to a discharge port, namely a moisture regain first area, a moisture regain second area and a moisture regain third area, acquiring an error change rate ec and a limit value thereof, acquiring an upper limit value | ec1| of a minimum interval and a lower limit value | ec2| of a maximum interval in a control interval, and | ec1| < | ec2 |; the range I is (0, | ec1|), the deviation change rate amplitude of the set value distance acquisition value is small, and the moisture regain three region is correspondingly controlled; the range II is defined as (| ec1|, | ec2|), the range II shows that the deviation change rate amplitude of the set value from the acquisition value is moderate, and the range II corresponds to the control moisture regain area; the range III is (| ec2|, + ∞), which means that the range of the deviation change rate of the set value from the acquisition value is large, and the control and the dampening are in a first range. And adjusting the temperature and the humidity of the subarea to be adjusted through the real-time deviation rate.
Different from the integral control concept of the conditioning area of the existing equipment, the zones can adopt an equal distribution mode and can also be subjected to unequal-distance zone division according to the temperature and humidity values of each zone acquired in the actual production process, and the temperature and humidity of each zone are regulated, so that the control range is smaller, the control effect is better, and the efficiency is higher; the selected limit value is the upper limit value of the minimum interval and the minimum value of the maximum interval, but is not the lower limit value of the minimum interval and the upper limit value of the maximum interval, so that the control range is effectively reduced. Meanwhile, the range I corresponds to a moisture regain three region, corresponds to the minimum deviation rate change range, and the moisture regain three region is positioned at the tobacco leaf discharging port, so that the control range is small, the tobacco leaf moisture fluctuation range is small, and the quality of finished tobacco leaves is convenient to control; the range two corresponds to a moisture regaining area two, and the deviation variation amplitude is large; the range corresponds to a moisture regain area, the deviation change range is maximum, the adjustable range is large, particularly for tobacco leaves which just start equipment and just enter the moisture regain area, the tobacco leaves can be heated and humidified to the maximum extent, so that the tobacco leaves can rapidly absorb moisture, and the processing efficiency is high.
Compared with the prior art, the invention has the beneficial effects that: obtaining deviation change rate limit values according to the acquired set values and the acquired values of the temperatures of the zones, determining three numerical value ranges according to the upper limit value and the lower limit value of the deviation change rate, and corresponding to the moisture regain zones; and determining the subarea to be controlled according to the real-time deviation change rate, and adjusting the temperature and the humidity of the corresponding subarea to obtain the tobacco leaves meeting the requirements. The control is carried out through a zone control mode, so that the control is more accurate, and each target parameter can be adjusted according to the water content and the temperature of the outlet tobacco leaves, so that the tobacco leaves with more stable quality are obtained.
Drawings
FIG. 1 is a schematic structural diagram of a temperature and humidity control system of a moisture regain area of a tobacco redrying machine.
In the figure: 1-a first moisture regain area, 2-a second moisture regain area, 3-a third moisture regain area, 4-a fan, 5-a first moisture meter, 6-a second moisture meter, 7-a steam outlet pipe, 8-a pneumatic membrane valve, 9-a main steam pipeline, 10-an atomized water pipe, 11-an electromagnetic valve and 12-a main atomized water pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The temperature and humidity control method for the moisture regain area of the tobacco flake redrying machine is characterized by comprising the following steps of:
a. dividing the moisture regaining area into three areas from the feed inlet to the discharge outlet, wherein the three areas are a moisture regaining first area, a moisture regaining second area and a moisture regaining third area respectively, and setting system set values of the areas according to experience;
b. obtaining deviation and deviation change rate: the method comprises the following steps that a system is set to a value x, a sensor obtains an indoor data acquisition value y, the x and the y are sent to a controller PLC, a deviation e is obtained through comparison of the indoor data acquisition value y and the x and the y, the deviation e is derived by taking time as a variable, and a deviation change rate ec is obtained;
c. obtaining a limit value of the deviation change rate ec, and adopting a fuzzy PID control method to control in a partition mode: acquiring an upper limit | ec1| of a minimum interval and a lower limit | ec2| of a maximum interval of an error change rate ec in a control interval, and | ec1| ec2| of the error change rate ec; the range I is (0, | ec1|), the deviation change rate amplitude of the set value distance acquisition value is small, and the moisture regain three region is correspondingly controlled; the range II is defined as (| ec1|, | ec2|), the range II shows that the deviation change rate amplitude of the set value from the acquisition value is moderate, and the range II corresponds to the control moisture regain area; the range III is (| ec2|, + ∞), the range III shows that the range of the deviation change rate of the set value from the acquisition value is large, and the range corresponds to a control moisture regain area;
d. acquiring a real-time deviation change rate ec, and adjusting the temperature and humidity of each area by adopting a partition intelligent PID control algorithm: controlling the steam amount of the injection and adjusting the temperature by controlling the opening of the pneumatic membrane valve; the atomization water quantity sprayed is controlled by controlling the on-off of the atomization water path electromagnetic valve, and the humidification quantity is adjusted.
Taking the moisture control at the tobacco flake outlet as an example for explanation, the set value of the system is 12, the control range is +/-0.5, and the actual acquisition values in unit time are respectively 11.7,11.8,12.3 and 12.5; the deviation change rates are respectively-0.3, -0.2,0.3 and 0.5; in this case, the minimum interval is (-0.3, -0.2), and its upper limit is | 0.2 | and; the maximum interval is (0.3, 0.5), and the lower limit is | 0.3 | as defined above. In this case, (0, | 0.2 |) is taken as a range one, the range of the deviation change rate of the set value from the acquisition value is small, and the moisture regain three zone is correspondingly controlled; controlling a second damping zone correspondingly by taking (| 0.2 | and | 0.3 | as a range two and indicating that the deviation change rate of a set value from an acquisition value is medium; the range III is (| 0.3 |, + ∞), which means that the range of the deviation change rate of the set value from the acquisition value is large, and the control moisture regain is one region. When the real-time deviation rate falls in any range of the three ranges, the control system adjusts the humidification quantity of the region by controlling the on-off of the corresponding atomizing waterway solenoid valve in the three moisture regaining regions. The control is carried out through a zone control mode, so that the control is more accurate, and each target parameter can be adjusted according to the water content and the temperature of the outlet tobacco leaves, so that the tobacco leaves with more stable quality are obtained.
Example 2
In order to further improve the technical solution in embodiment 1, in this embodiment, the system set value is a set value of the temperature of each zone, and the collected value is a collected value of the temperature of each zone; d, adjusting the opening of the pneumatic membrane valve in the step d
The calculation formula of (a) is as follows:
wherein:
is a proportional gain;
is an integration time constant;
is a differential time constant;
is the deviation of the collected value from the set value. The moisture regain three-zone control corresponds to the (0, | ec1|) range one of the ec value, at which time the overshoot needs to be reduced, the steady state error of the system is reduced, and the differentiation or integration action is introduced appropriately; the second damping section controls the range two (| ec1|, | ec2|) corresponding to the ec value, when the system output tends toward the desired value, a smaller proportional coefficient and a larger integral coefficient should be taken; moisture regainOne-zone control corresponds to the (| ec2|, + ∞) range three of ec values, requiring robust integration and appropriate introduction of differentiation. The stable control of the temperature of each area is realized by accurately controlling the opening of the pneumatic membrane valve of each area, so that the control of the interval of the error change rate range of the set value and the acquisition value by adopting a corresponding control area is realized.
Example 3
In order to further improve the technical scheme in the embodiment 1, the set value of the system in this embodiment is the set moisture content of the tobacco leaves, and the collection value is the moisture content of the tobacco leaves detected by a moisture meter at an outlet; the number of nozzles to be opened in step d
The calculation formula of (a) is as follows:
wherein: l is the tobacco flake flow, namely the weight of the tobacco flakes entering the moisture regain area in unit time;
the moisture content of the tobacco leaves detected by a moisture meter at an inlet;
the moisture content of the tobacco leaves detected by a moisture meter at an outlet;
setting the moisture content of the tobacco leaves;
the value is the influence value of steam on the moisture content of the tobacco leaves;
effective utilization rate of atomized water;
is the atomizing amount of the nozzle, namely the water spraying amount of the nozzle in unit time. According to the outlet smoke detected in real timeThe water content value of the leaves and the weight of the tobacco sheets entering the moisture regain area are substituted into a formula to calculate the number of nozzles to be opened, and the opening or closing state of an electromagnetic valve in a water path is adjusted to adjust the sprayed atomized water quantity and the humidification quantity.
Example 4
To further improve the technical solution of the embodiment 3, the embodiment describes
Setting the influence value of steam on the moisture content of the tobacco leaves as 1% according to an empirical value;
for the effective utilization of the atomized water, the empirical value was set to 90%. The influence of steam on the moisture content of the tobacco leaves and the influence of partial water condensed and discharged atomized water in the actual production process are eliminated, and the mutual interference among all parameters is reduced as much as possible.
Example 5
As shown in fig. 1, the temperature and humidity control system for implementing the temperature and humidity control method in the moisture regain area of the tobacco redrying machine is characterized in that: the device comprises a control system, a first moisture regain area 1, a second moisture regain area 2 and a third moisture regain area 3, wherein the top of each moisture regain area is provided with a heating pipe, the bottom of each moisture regain area is provided with a drainage channel, and a fan 4 is independently arranged above one side of each moisture regain area; a first moisture meter 5 is arranged at an inlet of the first moisture regaining area 1, a second moisture meter 6 for measuring the moisture of the tobacco leaves is arranged at an outlet of the third moisture regaining area 3, and the first moisture meter 5 and the second moisture meter 6 are in signal connection with a control system; the bottom of each moisture regain area is provided with a steam outlet pipe 7, and the steam outlet pipe 7 is connected to a main steam pipeline 9 through a pneumatic membrane valve 8; more than 2 groups of atomized water pipes 10 are arranged at the bottom of each moisture regain area, more than 3 atomized nozzles are uniformly distributed on the atomized water pipes 10 and are connected to an atomized water main pipeline 12 through electromagnetic valves 11; each moisture return area is provided with a temperature sensor in signal connection with the control system, and an electronic weighing device is arranged at the inlet of the tobacco piece redrying machine. The first moisture meter 5 and the second moisture meter 6 feed back the measured moisture content data of the tobacco leaves to the control system, the temperature sensor feeds back the real-time temperature value of each area to the control system, and the control system controls the opening of the pneumatic thin film valve 8 through the fed-back data, controls the sprayed steam quantity and adjusts the temperature of each area; the atomization water flow sprayed is controlled by controlling the on-off of the atomization water path electromagnetic valve, and the humidification quantity of each region is adjusted. The control is carried out through a zone control mode, so that the control is more accurate, and each target parameter can be adjusted according to the water content and the temperature of the outlet tobacco leaves, so that the tobacco leaves with more stable quality are obtained.
Example 6
In order to further improve the technical solution in embodiment 5, in this embodiment, the steam outlet pipes 7 are oppositely disposed at two sides of each moisture regain area along the width direction of each moisture regain area; atomized water pipe 10 is provided with 3 groups, and every group includes 2 atomized water pipe 10, and wherein 2 groups set up in each moisture regain district both sides along width direction relatively, and 1 group sets up in each moisture regain district both sides along length direction relatively in addition. Each water route of messenger's moisture regain subregion bottom is the rectangular distribution, makes atomizing nozzle evenly spread whole moisture regain subregion bottom, makes the humidification more abundant.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts or arrangements, other uses will also be apparent to those skilled in the art.
Claims (6)
1. The temperature and humidity control method for the moisture regain area of the tobacco flake redrying machine is characterized by comprising the following steps of:
a. dividing the moisture regaining area into three areas from the feed inlet to the discharge outlet, wherein the three areas are a moisture regaining first area, a moisture regaining second area and a moisture regaining third area respectively, and setting system set values of the areas according to experience;
b. obtaining deviation and deviation change rate: the method comprises the following steps that a system is set to a value x, a sensor obtains an indoor data acquisition value y, the x and the y are sent to a controller PLC, a deviation e is obtained through comparison of the indoor data acquisition value y and the x and the y, the deviation e is derived by taking time as a variable, and a deviation change rate ec is obtained;
c. obtaining a limit value of the deviation change rate ec, and adopting a fuzzy PID control method to control in a partition mode: acquiring an upper limit value | ec1| of a minimum interval and a lower limit value | ec2| of a maximum interval of the deviation change rate ec in a control interval, wherein | ec1| < | ec2 |; taking (0, | ec1|) as a range one, indicating that the deviation change rate amplitude of the set value from the acquisition value is small, and correspondingly controlling a moisture regain area; the range II is (| ec1|, | ec2|) and represents that the deviation change rate of the set value from the acquisition value is medium, and the moisture regain area II is correspondingly controlled; the range III is defined as (| ec2|, + ∞), the range of the deviation change rate of the set value from the acquisition value is large, and a moisture regain area I is correspondingly controlled;
d. acquiring a real-time deviation change rate ec, and adjusting the temperature and humidity of each area by adopting a partition intelligent PID control algorithm: controlling the steam amount of the injection and adjusting the temperature by controlling the opening of the pneumatic membrane valve; the atomization water quantity sprayed is controlled by controlling the on-off of the atomization water path electromagnetic valve, and the humidification quantity is adjusted.
2. The method for controlling the temperature and humidity of the moisture regain area of the tobacco redryer according to claim 1, wherein the method comprises the following steps: the system set value is a set value of the temperature of each zone, and the collection value is a temperature collection value of each zone; the calculation formula of the opening adjustment amount u (t) of the pneumatic membrane valve in the step d is as follows:
wherein: kpIs a proportional gain; t isIIs an integration time constant; t isDIs a differential time constant; e (t) is the deviation of the collected value from the set value.
3. The method for controlling the temperature and humidity of the moisture regain area of the tobacco redryer according to claim 1, wherein the method comprises the following steps: the set value of the system is the set moisture content of the tobacco leaves, and the collection value is the moisture content of the tobacco leaves detected by a moisture meter at an outlet; the number of nozzles n (t) to be opened in step d is calculated as follows:
wherein: l is the tobacco flake flow, namely the weight of the tobacco flakes entering the moisture regain area in unit time; x is the number of1The moisture content of the tobacco leaves detected by a moisture meter at an inlet; y is the moisture content of the tobacco leaves detected by a moisture meter at the outlet; x is the set moisture content of the tobacco leaves; z is the influence value of steam on the moisture content of the tobacco leaves; s is the effective utilization rate of the atomized water; l is2Is the atomizing amount of the nozzle, namely the water spraying amount of the nozzle in unit time.
4. The method for controlling the temperature and humidity of the moisture regain area of the tobacco piece redrying machine according to claim 3, which is characterized in that: the z is an influence value of steam on the moisture content of the tobacco leaves and is set to be 1% according to an empirical value; s is the effective utilization rate of the atomized water and is set to be 90% according to an empirical value.
5. The temperature and humidity control system for realizing the temperature and humidity control method in the moisture regain area of the tobacco piece redrying machine, which is characterized in that: the device comprises a control system, a first moisture regain area (1), a second moisture regain area (2) and a third moisture regain area (3), wherein heating pipes are arranged at the top of each moisture regain area, drainage channels are arranged at the bottom of each moisture regain area, and a fan (4) is independently arranged above one side of each moisture regain area; a first moisture meter (5) is arranged at an inlet of the first moisture regaining area (1), a second moisture meter (6) for measuring the moisture of the tobacco leaves is arranged at an outlet of the third moisture regaining area (3), and the first moisture meter (5) and the second moisture meter (6) are in signal connection with a control system; the bottom of each moisture regain area is provided with a steam outlet pipe (7), and the steam outlet pipe (7) is connected to a main steam pipeline (9) through a pneumatic membrane valve (8); more than 2 groups of atomized water pipes (10) are arranged at the bottom of each moisture regain area, more than 3 atomized nozzles are uniformly distributed on the atomized water pipes (10) and are connected to a main atomized water pipeline (12) through electromagnetic valves (11); each moisture return area is provided with a temperature sensor in signal connection with the control system, and an electronic weighing device is arranged at the inlet of the tobacco piece redrying machine.
6. The temperature and humidity control system of the temperature and humidity control method for the moisture regain area of the tobacco piece redrying machine according to claim 5, characterized in that: the steam outlet pipes (7) are oppositely arranged at two sides of each moisture regain area along the width direction of each moisture regain area; atomizing water pipe (10) are provided with 4 groups, and every group includes 2 atomizing water pipe (10), and wherein 2 groups set up in each moisture regain district both sides along width direction relatively, and 2 groups set up in each moisture regain district both sides along length direction relatively in addition.
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| CN110537731A (en) * | 2019-08-06 | 2019-12-06 | 广东大源小能节能科技有限公司 | Humidity control system for redrying tobacco leaves |
| CN110623297A (en) * | 2019-10-18 | 2019-12-31 | 江苏中烟工业有限责任公司 | Threshing and redrying pretreatment device and moisture control method thereof |
| CN111443680B (en) * | 2020-04-24 | 2021-03-05 | 龙岩烟草工业有限责任公司 | Control method, control device and cigarette processing equipment |
| CN111831028A (en) * | 2020-07-28 | 2020-10-27 | 福建省龙岩金叶复烤有限责任公司 | Temperature control method and device for material head and material tail of moisture regain section of redrying machine and medium |
| CN111831029A (en) * | 2020-07-28 | 2020-10-27 | 福建省龙岩金叶复烤有限责任公司 | Tobacco redrying temperature control method and device and medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003075689A1 (en) * | 2002-03-14 | 2003-09-18 | Japan Tobacco Inc. | Raw material moisture control method and moisture control machine |
| CN203446505U (en) * | 2013-05-31 | 2014-02-26 | 河南中烟工业有限责任公司 | Double PID control system used for cut stem drying machine |
| CN103704875A (en) * | 2012-10-09 | 2014-04-09 | 北京精密机电控制设备研究所 | High-precision tobacco shred moisture control method and control system thereof |
| JP5709289B2 (en) * | 2012-03-15 | 2015-04-30 | 日本たばこ産業株式会社 | Humidity control method for tobacco materials |
| CN105962408A (en) * | 2016-07-01 | 2016-09-28 | 云南烟叶复烤有限责任公司 | Multi-strategy composite control method for moisture of tobacco at outlet of tobacco redryer |
| CN105996106A (en) * | 2016-06-17 | 2016-10-12 | 河南中烟工业有限责任公司 | Cut tobacco quality control method and system based on airflow drying |
| CN106054834A (en) * | 2016-06-17 | 2016-10-26 | 河南中烟工业有限责任公司 | Tobacco flake quality control method and system based on loosing and conditioning |
| CN106974317A (en) * | 2016-01-15 | 2017-07-25 | 红塔烟草（集团）有限责任公司楚雄卷烟厂 | A kind of control method of hot blast leaves moisting equipment |
-
2018
- 2018-04-11 CN CN201810321427.XA patent/CN108378406B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003075689A1 (en) * | 2002-03-14 | 2003-09-18 | Japan Tobacco Inc. | Raw material moisture control method and moisture control machine |
| JP5709289B2 (en) * | 2012-03-15 | 2015-04-30 | 日本たばこ産業株式会社 | Humidity control method for tobacco materials |
| CN103704875A (en) * | 2012-10-09 | 2014-04-09 | 北京精密机电控制设备研究所 | High-precision tobacco shred moisture control method and control system thereof |
| CN203446505U (en) * | 2013-05-31 | 2014-02-26 | 河南中烟工业有限责任公司 | Double PID control system used for cut stem drying machine |
| CN106974317A (en) * | 2016-01-15 | 2017-07-25 | 红塔烟草（集团）有限责任公司楚雄卷烟厂 | A kind of control method of hot blast leaves moisting equipment |
| CN105996106A (en) * | 2016-06-17 | 2016-10-12 | 河南中烟工业有限责任公司 | Cut tobacco quality control method and system based on airflow drying |
| CN106054834A (en) * | 2016-06-17 | 2016-10-26 | 河南中烟工业有限责任公司 | Tobacco flake quality control method and system based on loosing and conditioning |
| CN105962408A (en) * | 2016-07-01 | 2016-09-28 | 云南烟叶复烤有限责任公司 | Multi-strategy composite control method for moisture of tobacco at outlet of tobacco redryer |
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