CN106213568B - Tobacco shreds drying exports method for controlling water content and device - Google Patents
Tobacco shreds drying exports method for controlling water content and device Download PDFInfo
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- CN106213568B CN106213568B CN201610810437.0A CN201610810437A CN106213568B CN 106213568 B CN106213568 B CN 106213568B CN 201610810437 A CN201610810437 A CN 201610810437A CN 106213568 B CN106213568 B CN 106213568B
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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
- A24B3/04—Humidifying or drying tobacco bunches or cut tobacco
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Abstract
The present invention discloses a kind of tobacco shreds drying outlet method for controlling water content and device.This method includes：Moisture content of cut tobaccos detected value before the level-one mixture detected is sent to control signal maker by the first moisture detector with moisture content of cut tobaccos before predetermined time interval detection level-one mixture；Control signal maker generates first control signal according to pipe tobacco target moisture content before moisture content of cut tobaccos detected value before level-one mixture and level-one mixture；PID controller carries out PID control processing according to first control signal, to generate second control signal；Hot wind volume control damper adjusts hot wind air quantity according to second control signal, dries silk outlet moisture content of cut tobaccos with adjustment, and then adjusts the moisture content of cut tobaccos of conveyer belt before level-one mixture.The present invention realizes the stabilization of pipe tobacco moisture content before flavoring, so as to reach the accurate control of finished cut tobacco moisture content by increasing a moisture detector on conveyer belt before level-one mixture.
Description
Technical field
The present invention relates to tobacco leaf production field, more particularly to a kind of tobacco shreds drying outlet method for controlling water content and device.
Background technology
Tobacco shreds drying outlet moisture content is one of Key Quality Indicator in cigarette primary processing production process.The quality index meeting
Flavoring outlet finished cut tobacco moisture content is influenced, whether qualification plays an important role to finished cut tobacco moisture content.
Tobacco enterprise dries the position that silk moisture content of outlet instrument is typically mounted on 3 meters or so the conveyer belts in distance baking silk outlet at present
It puts, pipe tobacco temperature is at 60 DEG C or so at this time, and pipe tobacco is in transmission process, as the reduction of temperature brings scattering and disappearing for moisture in cut tobacco,
And under different environmental weather conditions, moisture in cut tobacco value of scattering and disappearing is inconsistent, causes the fluctuation of moisture content before tobacco perfuming, causes
Finished cut tobacco moisture content is difficult to control after flavoring.
The content of the invention
In view of above technical problem, the present invention provides a kind of tobacco shreds drying outlet method for controlling water content and devices, can
To realize the stabilization of pipe tobacco moisture content before flavoring, reach finished cut tobacco moisture content and accurately control.
According to an aspect of the present invention, a kind of tobacco shreds drying outlet method for controlling water content is provided, including：
First moisture detector detects moisture content of cut tobaccos before level-one mixture, and the level-one that will be detected with predetermined time interval
Moisture content of cut tobaccos detected value is sent to control signal maker before mixture；
Control signal maker is aqueous according to moisture content of cut tobaccos detected value before level-one mixture and pipe tobacco target before level-one mixture
Rate generates first control signal, and first control signal is sent to PID controller；
PID controller carries out PID control processing according to first control signal, to generate second control signal, and by second
Control signal is sent to hot wind volume control damper；
Hot wind volume control damper adjusts hot wind air quantity according to second control signal, dries silk outlet moisture content of cut tobaccos with adjustment,
And then adjust the moisture content of cut tobaccos of conveyer belt before level-one mixture.
In one embodiment of the invention, the method further includes：
Second moisture detector is detected with predetermined time interval dries silk outlet moisture content of cut tobaccos, wherein the second moisture detector
It links with the first moisture detector；
PID controller is adjusted the base value of the second moisture detector according to first control signal.
In one embodiment of the invention, the PID controller according to first control signal to the second moisture detector
Base value be adjusted including：
PID controller moisture content of cut tobaccos detected value before level-one mixture is more than the feelings of pipe tobacco target moisture content before level-one mixture
Under condition, increase the base value of the second moisture detector according to first control signal；
PID controller moisture content of cut tobaccos detected value before level-one mixture is less than the feelings of pipe tobacco target moisture content before level-one mixture
Under condition, reduce the base value of the second moisture detector according to first control signal.
In one embodiment of the invention, the first control signal for moisture content of cut tobaccos detected value before level-one mixture with
The difference of pipe tobacco target moisture content before level-one mixture；
The PID controller base value of the second moisture detector is adjusted according to first control signal including：
PID controller sums the base value of the second moisture detector and the difference, as the new of the second moisture detector
Base value.
In one embodiment of the invention, the hot wind volume control damper adjusts hot wind air quantity according to second control signal
Including：
In the case that moisture content of cut tobaccos detected value is more than pipe tobacco target moisture content before level-one mixture before level-one mixture, hot wind
Volume control damper increases hot wind air quantity according to second control signal, dries silk outlet moisture content of cut tobaccos to reduce, and then reduces level-one
The moisture content of cut tobaccos of conveyer belt before mixture；
In the case that moisture content of cut tobaccos detected value is less than pipe tobacco target moisture content before level-one mixture before level-one mixture, hot wind
Volume control damper reduces hot wind air quantity according to second control signal, dries silk outlet moisture content of cut tobaccos with increase, and then increases level-one
The moisture content of cut tobaccos of conveyer belt before mixture.
According to another aspect of the present invention, a kind of tobacco shreds drying outlet moisture control device is provided, including the first moisture
Detector, control signal maker, PID controller and hot wind volume control damper, wherein：
First moisture detector for detecting moisture content of cut tobaccos before level-one mixture with predetermined time interval, and will detect
Level-one mixture before moisture content of cut tobaccos detected value be sent to control signal maker；
Control signal maker, for according to pipe tobacco target before moisture content of cut tobaccos detected value before level-one mixture and level-one mixture
Moisture content generates first control signal, and first control signal is sent to PID controller；
PID controller, for carrying out PID control processing according to first control signal, to generate second control signal, and will
Second control signal is sent to hot wind volume control damper；
Hot wind volume control damper for adjusting hot wind air quantity according to second control signal, dries silk outlet pipe tobacco with adjustment and contains
Water rate, and then adjust the moisture content of cut tobaccos of conveyer belt before level-one mixture.
In one embodiment of the invention, described device further includes the second moisture detector, wherein：
Second moisture detector and the first moisture detector link；
Second moisture detector dries silk outlet moisture content of cut tobaccos for being detected with predetermined time interval；
PID controller is additionally operable to be adjusted the base value of the second moisture detector according to first control signal.
In one embodiment of the invention, PID controller be used for before level-one mixture moisture content of cut tobaccos detected value be more than
Before level-one mixture in the case of pipe tobacco target moisture content, increase the base value of the second moisture detector according to first control signal；With
And moisture content of cut tobaccos detected value is less than before level-one mixture in the case of pipe tobacco target moisture content before level-one mixture, according to the first control
Signal processed reduces the base value of the second moisture detector.
In one embodiment of the invention, the first control signal for moisture content of cut tobaccos detected value before level-one mixture with
The difference of pipe tobacco target moisture content before level-one mixture；
PID controller is used to sum the base value of the second moisture detector and the difference, as the second moisture detector
New base value.
In one embodiment of the invention, hot wind volume control damper is used for the moisture content of cut tobaccos detected value before level-one mixture
In the case of more than pipe tobacco target moisture content before level-one mixture, hot wind air quantity is increased according to second control signal, to reduce baking silk
Moisture content of cut tobaccos is exported, and then reduces the moisture content of cut tobaccos of conveyer belt before level-one mixture；And pipe tobacco is aqueous before level-one mixture
In the case that rate detected value is less than pipe tobacco target moisture content before level-one mixture, hot wind air quantity is reduced according to second control signal, with
Silk outlet moisture content of cut tobaccos is dried in increase, and then increases the moisture content of cut tobaccos of conveyer belt before level-one mixture.
The present invention realizes pipe tobacco and contains before flavoring by increasing a moisture detector on conveyer belt before level-one mixture
The stabilization of water rate, so as to reach the accurate control of finished cut tobacco moisture content.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the schematic diagram that tobacco shreds drying of the present invention exports moisture control device first embodiment.
Fig. 2 is the control logic schematic diagram of Fig. 1 embodiments.
Fig. 3 is the schematic diagram that tobacco shreds drying of the present invention exports moisture control device second embodiment.
Fig. 4 is the control logic schematic diagram of Fig. 3 embodiments.
Fig. 5 is the schematic diagram that tobacco shreds drying of the present invention exports method for controlling water content first embodiment.
Fig. 6 is the schematic diagram that tobacco shreds drying of the present invention exports method for controlling water content second embodiment.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower all other embodiments obtained, belong to the scope of protection of the invention.
Unless specifically stated otherwise, the component and positioned opposite, the digital table of step otherwise illustrated in these embodiments
It is not limited the scope of the invention up to formula and numerical value.
Simultaneously, it should be appreciated that for ease of description, the size of the various pieces shown in attached drawing is not according to reality
Proportionate relationship draw.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely illustrative, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent attached drawing in a attached drawing.
Fig. 1 is the schematic diagram that tobacco shreds drying of the present invention exports moisture control device first embodiment.Fig. 2 is implemented for Fig. 1
The control logic schematic diagram of example.As shown in Figure 1, tobacco shreds drying outlet moisture control device can include the first water content detection
Instrument 1, control signal maker 2, PID controller 3 and hot wind volume control damper 4, wherein：
First moisture detector 1 is arranged on the conveyer belt before level-one mixture.
First moisture detector 1 for detecting moisture content of cut tobaccos before level-one mixture with predetermined time interval, and will detect
Level-one mixture before moisture content of cut tobaccos detected value be sent to control signal maker 2.
Control signal maker 2, for according to pipe tobacco mesh before moisture content of cut tobaccos detected value before level-one mixture and level-one mixture
Moisture content generation first control signal is marked, and first control signal is sent to PID controller 3.
In one embodiment of the invention, the first control signal for moisture content of cut tobaccos detected value before level-one mixture with
The difference of pipe tobacco target moisture content before level-one mixture.
PID controller 3, for carrying out PID control processing according to first control signal, to generate second control signal, and
Second control signal is sent to hot wind volume control damper 4.
Hot wind volume control damper 4 for adjusting hot wind air quantity according to second control signal, dries silk outlet pipe tobacco with adjustment and contains
Water rate, and then adjust the moisture content of cut tobaccos of conveyer belt before level-one mixture.
In one embodiment of the invention, hot wind volume control damper 4 is specific can be used for the pipe tobacco before level-one mixture and contains
In the case that water rate detected value is more than pipe tobacco target moisture content before level-one mixture, hot wind air quantity is increased according to second control signal,
Silk outlet moisture content of cut tobaccos is dried to reduce, and then reduces the moisture content of cut tobaccos of conveyer belt before level-one mixture；And in level-one mixture
In the case that preceding moisture content of cut tobaccos detected value is less than pipe tobacco target moisture content before level-one mixture, heat is reduced according to second control signal
Wind air quantity dries silk outlet moisture content of cut tobaccos with increase, and then increases the moisture content of cut tobaccos of conveyer belt before level-one mixture.
Moisture control device is exported based on the tobacco shreds drying that the above embodiment of the present invention provides, by before level-one mixture
Increase a moisture detector on conveyer belt, using moisture content of cut tobacco before level-one mixture as drying process target moisture content, due to
Pipe tobacco temperature has tended to room temperature before level-one mixture, and moisture content of cut tobaccos is stablized, and thus the above embodiment of the present invention realizes pipe tobacco and exists
The stabilization of moisture content before flavoring, so as to reach the accurate control of finished cut tobacco moisture content.
Fig. 3 is the schematic diagram that tobacco shreds drying of the present invention exports moisture control device second embodiment.Fig. 4 is implemented for Fig. 3
The control logic schematic diagram of example.Compared with embodiment illustrated in fig. 1, in the embodiment shown in fig. 3, described device can also include the
Two moisture detectors 5, wherein：
Second moisture detector 5, which is arranged on, to be dried on silk exit conveyor belt, the second moisture detector 5 and the first moisture detector
1 linkage.
Second moisture detector 5 dries silk outlet moisture content of cut tobaccos for being detected with predetermined time interval.
PID controller 3 can be also used for being adjusted the base value of the second moisture detector 5 according to first control signal.
In one particular embodiment of the present invention, the first control signal detects for moisture content of cut tobaccos before level-one mixture
Value and the difference of pipe tobacco target moisture content before level-one mixture；PID controller 3 is specifically used for the base value of the second moisture detector 5
It sums with the difference, the new base value as the second moisture detector 5.
In the another specific embodiment of the present invention, PID controller 3 is examined by moisture on conveyer belt before first order calculation mixture
Difference between measured value and desired value on the premise of baking silk outlet moisture content setting value is constant, passes through to automatically adjust and dries silk outlet
The base value of Moisture Meter realizes before level-one mixture automatically controlling for pipe tobacco target moisture content on conveyer belt.
In one embodiment of the invention, PID controller 3 be used for before level-one mixture moisture content of cut tobaccos detected value be more than
Before level-one mixture in the case of pipe tobacco target moisture content, increase the base value of the second moisture detector 5 according to first control signal；With
And moisture content of cut tobaccos detected value is less than before level-one mixture in the case of pipe tobacco target moisture content before level-one mixture, according to the first control
Signal processed reduces the base value of the second moisture detector 5.
Such as：Pipe tobacco target moisture content is 12.5% before level-one mixture, and moisture content of cut tobaccos detected value is before level-one mixture
13.0%, then dry a moisture content of outlet instrument base value automatically plus 0.5 or so and dry silk outlet moisture content setting value it is constant, silk will be dried and gone out
The show value of mouth Moisture Meter is heightened；If pipe tobacco target moisture content is 12.5% before level-one mixture, moisture content of cut tobaccos before level-one mixture
Detected value is 12.0%, then dry a moisture content of outlet instrument base value subtract 0.5 or so automatically and dry silk outlet moisture content setting value it is constant,
A show value for moisture content of outlet instrument will be dried to turn down.
Moisture control device is exported based on the tobacco shreds drying that the above embodiment of the present invention provides, passes through the first water content detection
The linkage of instrument and the second water content detection detector, it is aqueous to drying silk outlet cut tobacco to realize by adjusting hot air flow convenient for observing
The real-time adjustment of moisture content of cut tobacco before rate and level-one mixture.The above embodiment of the present invention passes through on conveyer belt before first order calculation mixture
Difference between water content detection value and desired value on the premise of baking silk outlet moisture content setting value is constant, passes through to automatically adjust and dry
The base value of silk moisture content of outlet instrument realizes before level-one mixture automatically controlling for pipe tobacco target moisture content on conveyer belt.
The above embodiment of the present invention increases a moisture detector before level-one mixture on conveyer belt, by level-one mixture frontal lobe
Silk moisture content is as drying process target moisture content, it is possible thereby to realize the stabilization of pipe tobacco moisture content before flavoring, tobacco perfuming
Outlet moisture content of cut tobaccos qualification rate has been increased to 99% by original 95%, and flavoring exports moisture content standard deviation by original
0.05% has been increased to 0.03%, so as to reach the accurate control to finished cut tobacco moisture content.
Fig. 5 is the schematic diagram that tobacco shreds drying of the present invention exports method for controlling water content first embodiment.Preferably, this implementation
Example can be performed by the tobacco shreds drying outlet moisture control device of any of the above-described embodiment of the present invention.As shown in figure 5, the method
It can include：
Step 51, the first moisture detector 1 is with moisture content of cut tobaccos before predetermined time interval detection level-one mixture, and will detect
To level-one mixture before moisture content of cut tobaccos detected value be sent to control signal maker 2.
Step 52, control signal maker 2 is according to pipe tobacco before moisture content of cut tobaccos detected value before level-one mixture and level-one mixture
Target moisture content generates first control signal, and first control signal is sent to PID controller 3.
In one embodiment of the invention, the first control signal for moisture content of cut tobaccos detected value before level-one mixture with
The difference of pipe tobacco target moisture content before level-one mixture.
Step 53, PID controller 3 carries out PID control processing according to first control signal, to generate second control signal,
And second control signal is sent to hot wind volume control damper 4.
Step 54, hot wind volume control damper 4 adjusts hot wind air quantity according to second control signal, dries silk outlet pipe tobacco with adjustment
Moisture content, and then adjust the moisture content of cut tobaccos of conveyer belt before level-one mixture.
In one embodiment of the invention, in step 54, the hot wind volume control damper 4 is according to second control signal tune
The step of whole hot wind air quantity, can include：
Step 541, before level-one mixture moisture content of cut tobaccos detected value be more than level-one mixture before pipe tobacco target moisture content feelings
Under condition, hot wind volume control damper 4 increases hot wind air quantity according to second control signal, dries silk outlet moisture content of cut tobaccos to reduce, into
And reduce the moisture content of cut tobaccos of conveyer belt before level-one mixture.
Step 542, before level-one mixture moisture content of cut tobaccos detected value be less than level-one mixture before pipe tobacco target moisture content feelings
Under condition, hot wind volume control damper 4 reduces hot wind air quantity according to second control signal, dries silk outlet moisture content of cut tobaccos with increase, into
And increase the moisture content of cut tobaccos of conveyer belt before level-one mixture.
Method for controlling water content is exported based on the tobacco shreds drying that the above embodiment of the present invention provides, by before level-one mixture
Increase a moisture detector on conveyer belt, using moisture content of cut tobacco before level-one mixture as drying process target moisture content, due to
Pipe tobacco temperature has tended to room temperature before level-one mixture, and moisture content of cut tobaccos is stablized, and thus the above embodiment of the present invention realizes pipe tobacco and exists
The stabilization of moisture content before flavoring, so as to reach the accurate control of finished cut tobacco moisture content.
Fig. 6 is the schematic diagram that tobacco shreds drying of the present invention exports method for controlling water content second embodiment.The step of Fig. 6 embodiments
Rapid 61, step 63, step 65, step 66 are same or like with the step 51- steps 54 of Fig. 5 embodiments respectively.Preferably, this reality
Applying example can be performed by the tobacco shreds drying outlet moisture control device of any of the above-described embodiment of the present invention.As shown in fig. 6, the side
Method can include：
Step 61, the first moisture detector 1 is with moisture content of cut tobaccos before predetermined time interval detection level-one mixture, and will detect
To level-one mixture before moisture content of cut tobaccos detected value be sent to control signal maker 2.
Step 62, the second moisture detector 5 is detected with predetermined time interval dries silk outlet moisture content of cut tobaccos, wherein the second water
Sorting-detecting instrument 5 links with the first moisture detector 1；
Step 63, control signal maker 2 is according to pipe tobacco before moisture content of cut tobaccos detected value before level-one mixture and level-one mixture
Target moisture content generates first control signal, and first control signal is sent to PID controller 3.
In one embodiment of the invention, the first control signal for moisture content of cut tobaccos detected value before level-one mixture with
The difference of pipe tobacco target moisture content before level-one mixture.
Step 64, PID controller 3 is adjusted the base value of the second moisture detector 5 according to first control signal.
In one embodiment of the invention, step 64 can include：
Step 641, the moisture content of cut tobaccos detected value before level-one mixture of PID controller 3 is more than pipe tobacco target before level-one mixture
In the case of moisture content, increase the base value of the second moisture detector 5 according to first control signal.
Step 642, the moisture content of cut tobaccos detected value before level-one mixture of PID controller 3 is less than pipe tobacco target before level-one mixture
In the case of moisture content, reduce the base value of the second moisture detector 5 according to first control signal.
In one embodiment of the invention, step 64 can include：PID controller 3 is by the base of the second moisture detector 5
Value is summed with the difference, the new base value as the second moisture detector 5.
In one embodiment of the invention, step 64 can include：It is examined by moisture content of cut tobaccos before first order calculation mixture
The difference of measured value and pipe tobacco target moisture content before level-one mixture on the premise of baking silk outlet moisture content setting value is constant, passes through
Automatic adjustment dries the base value of silk moisture content of outlet instrument to realize before level-one mixture automatically controlling for pipe tobacco target moisture content on conveyer belt.
Such as：If pipe tobacco target moisture content is 12.5% before level-one mixture, moisture content of cut tobaccos detected value is before level-one mixture
13.0%, then dry a moisture content of outlet instrument base value automatically plus 0.5 or so and dry silk outlet moisture content setting value it is constant；If conversely, one
Pipe tobacco target moisture content is 12.5% before grade mixture, and moisture content of cut tobaccos detected value is 12.0% before level-one mixture, then dries silk outlet
Moisture Meter base value subtracts 0.5 or so automatically and to dry silk outlet moisture content setting value constant.
Step 65, PID controller 3 carries out PID control processing according to first control signal, to generate second control signal,
And second control signal is sent to hot wind volume control damper 4.
Step 66, hot wind volume control damper 4 adjusts hot wind air quantity according to second control signal, dries silk outlet pipe tobacco with adjustment
Moisture content, and then adjust the moisture content of cut tobaccos of conveyer belt before level-one mixture.
In one embodiment of the invention, in step 66, the hot wind volume control damper 4 is according to second control signal tune
The step of whole hot wind air quantity, can include：
Step 661, before level-one mixture moisture content of cut tobaccos detected value be more than level-one mixture before pipe tobacco target moisture content feelings
Under condition, hot wind volume control damper 4 increases hot wind air quantity according to second control signal, dries silk outlet moisture content of cut tobaccos to reduce, into
And reduce the moisture content of cut tobaccos of conveyer belt before level-one mixture.
Step 662, before level-one mixture moisture content of cut tobaccos detected value be less than level-one mixture before pipe tobacco target moisture content feelings
Under condition, hot wind volume control damper 4 reduces hot wind air quantity according to second control signal, dries silk outlet moisture content of cut tobaccos with increase, into
And increase the moisture content of cut tobaccos of conveyer belt before level-one mixture.
Method for controlling water content is exported based on the tobacco shreds drying that the above embodiment of the present invention provides, passes through the first water content detection
The linkage of instrument and the second water content detection detector, it is aqueous to drying silk outlet cut tobacco to realize by adjusting hot air flow convenient for observing
The real-time adjustment of moisture content of cut tobacco before rate and level-one mixture.The above embodiment of the present invention passes through on conveyer belt before first order calculation mixture
Difference between water content detection value and desired value on the premise of baking silk outlet moisture content setting value is constant, passes through to automatically adjust and dry
The base value of silk moisture content of outlet instrument realizes before level-one mixture automatically controlling for pipe tobacco target moisture content on conveyer belt.
The above embodiment of the present invention increases a moisture detector before level-one mixture on conveyer belt, by level-one mixture frontal lobe
Silk moisture content is as drying process target moisture content, it is possible thereby to realize the stabilization of pipe tobacco moisture content before flavoring, tobacco perfuming
Outlet moisture content of cut tobaccos qualification rate has been increased to 99% by original 95%, and flavoring exports moisture content standard deviation by original
0.05% has been increased to 0.03%, so as to reach the accurate control to finished cut tobacco moisture content.
Control signal maker 2 and PID controller 3 described above, which can be implemented as performing the application, to be retouched
State general processor, programmable logic controller (PLC) (PLC), digital signal processor (DSP), the application-specific integrated circuit of function
(ASIC), field programmable gate array (FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components or it is arbitrary appropriately combined.
So far, the present invention is described in detail.In order to avoid the design of the masking present invention, it is public that this field institute is not described
Some details known.Those skilled in the art as described above, can be appreciated how to implement technology disclosed herein completely
Scheme.
One of ordinary skill in the art will appreciate that hardware can be passed through by realizing all or part of step of above-described embodiment
It completes, relevant hardware can also be instructed to complete by program, the program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
Description of the invention provides for the sake of example and description, and is not exhaustively or by the present invention
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.It selects and retouches
It states embodiment and is to more preferably illustrate the principle of the present invention and practical application, and those of ordinary skill in the art is enable to manage
The present invention is solved so as to design the various embodiments with various modifications suitable for special-purpose.
Claims (6)
1. a kind of tobacco shreds drying exports method for controlling water content, which is characterized in that including：
First moisture detector detects moisture content of cut tobaccos before level-one mixture, and the level-one mixture that will be detected with predetermined time interval
Preceding moisture content of cut tobaccos detected value is sent to control signal maker；
Control signal maker is given birth to according to pipe tobacco target moisture content before moisture content of cut tobaccos detected value before level-one mixture and level-one mixture
PID controller is sent into first control signal, and by first control signal；
PID controller carries out PID control processing according to first control signal, to generate second control signal, and second is controlled
Signal is sent to hot wind volume control damper；
Hot wind volume control damper adjusts hot wind air quantity according to second control signal, dries silk outlet moisture content of cut tobaccos with adjustment, and then
The moisture content of cut tobaccos of conveyer belt before adjustment level-one mixture；
Wherein, the method further includes：
Second moisture detector is detected with predetermined time interval dries silk outlet moisture content of cut tobaccos, wherein the second moisture detector and the
One moisture detector links；
PID controller is adjusted the base value of the second moisture detector according to first control signal；
Wherein, the PID controller base value of the second moisture detector is adjusted according to first control signal including：
PID controller moisture content of cut tobaccos detected value before level-one mixture is more than the situation of pipe tobacco target moisture content before level-one mixture
Under, according to the base value of first control signal the second moisture detector of increase；
PID controller moisture content of cut tobaccos detected value before level-one mixture is less than the situation of pipe tobacco target moisture content before level-one mixture
Under, according to the base value of first control signal the second moisture detector of reduction.
2. according to the method described in claim 1, it is characterized in that, the first control signal is aqueous for pipe tobacco before level-one mixture
The difference of rate detected value and pipe tobacco target moisture content before level-one mixture；
The PID controller base value of the second moisture detector is adjusted according to first control signal including：
PID controller sums the base value of the second moisture detector and the difference, the new base value as the second moisture detector.
3. according to the method any one of claim 1-2, which is characterized in that the hot wind volume control damper is according to second
Control signal adjustment hot wind air quantity includes：
In the case that moisture content of cut tobaccos detected value is more than pipe tobacco target moisture content before level-one mixture before level-one mixture, hot wind air quantity
Control valve increases hot wind air quantity according to second control signal, dries silk outlet moisture content of cut tobaccos to reduce, and then reduces level-one mixture
The moisture content of cut tobaccos of preceding conveyer belt；
In the case that moisture content of cut tobaccos detected value is less than pipe tobacco target moisture content before level-one mixture before level-one mixture, hot wind air quantity
Control valve reduces hot wind air quantity according to second control signal, dries silk outlet moisture content of cut tobaccos with increase, and then increases level-one mixture
The moisture content of cut tobaccos of preceding conveyer belt.
4. a kind of tobacco shreds drying exports moisture control device, which is characterized in that is given birth to including the first moisture detector, control signal
It grows up to be a useful person, PID controller and hot wind volume control damper, wherein：
First moisture detector, for detecting moisture content of cut tobaccos before level-one mixture, and one will detected with predetermined time interval
Moisture content of cut tobaccos detected value is sent to control signal maker before grade mixture；
Control signal maker, for aqueous according to moisture content of cut tobaccos detected value before level-one mixture and pipe tobacco target before level-one mixture
Rate generates first control signal, and first control signal is sent to PID controller；
PID controller, for carrying out PID control processing according to first control signal, to generate second control signal, and by second
Control signal is sent to hot wind volume control damper；
Hot wind volume control damper for adjusting hot wind air quantity according to second control signal, dries silk outlet moisture content of cut tobaccos with adjustment,
And then adjust the moisture content of cut tobaccos of conveyer belt before level-one mixture；
Wherein, described device further includes the second moisture detector, wherein：
Second moisture detector and the first moisture detector link；
Second moisture detector dries silk outlet moisture content of cut tobaccos for being detected with predetermined time interval；
PID controller is additionally operable to be adjusted the base value of the second moisture detector according to first control signal；
Wherein, it is aqueous more than pipe tobacco target before level-one mixture to be used for the moisture content of cut tobaccos detected value before level-one mixture for PID controller
In the case of rate, increase the base value of the second moisture detector according to first control signal；And pipe tobacco is aqueous before level-one mixture
In the case that rate detected value is less than pipe tobacco target moisture content before level-one mixture, the second water content detection is reduced according to first control signal
The base value of instrument.
5. device according to claim 4, which is characterized in that the first control signal is aqueous for pipe tobacco before level-one mixture
The difference of rate detected value and pipe tobacco target moisture content before level-one mixture；
PID controller is used to sum the base value of the second moisture detector and the difference, as the new of the second moisture detector
Base value.
6. according to the device any one of claim 4-5, which is characterized in that
It is aqueous more than pipe tobacco target before level-one mixture that hot wind volume control damper is used for the moisture content of cut tobaccos detected value before level-one mixture
In the case of rate, hot wind air quantity is increased according to second control signal, silk outlet moisture content of cut tobaccos is dried to reduce, and then reduces level-one
The moisture content of cut tobaccos of conveyer belt before mixture；And moisture content of cut tobaccos detected value is less than pipe tobacco mesh before level-one mixture before level-one mixture
In the case of marking moisture content, hot wind air quantity is reduced according to second control signal, silk outlet moisture content of cut tobaccos, Jin Erzeng are dried with increase
The moisture content of cut tobaccos of conveyer belt before big level-one mixture.
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| CN106983172A (en) * | 2017-04-24 | 2017-07-28 | 江苏密斯欧智能科技有限公司 | A kind of method of tobacco silk thread intelligence manufacture |
| CN107421839B (en) * | 2017-06-08 | 2020-01-31 | 上海烟草集团有限责任公司 | Pre-baking moisture detection device and method for production of baked silk threads |
| CN111165866A (en) * | 2019-12-12 | 2020-05-19 | 河南中烟工业有限责任公司 | Quality control method and system based on airflow type cut stem drying |
| CN110946306B (en) * | 2019-12-12 | 2022-09-23 | 河南中烟工业有限责任公司 | Quality control method and system based on drum-type cut tobacco moisture regain |
| CN111912812B (en) * | 2020-07-02 | 2023-03-21 | 河南中烟工业有限责任公司 | Method and system for reducing oily spot smoke |
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