CN107797536A - It is a kind of to improve the control method for cutting rear cut tobacco moisture up to standard rate - Google Patents
It is a kind of to improve the control method for cutting rear cut tobacco moisture up to standard rate Download PDFInfo
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- CN107797536A CN107797536A CN201711033639.XA CN201711033639A CN107797536A CN 107797536 A CN107797536 A CN 107797536A CN 201711033639 A CN201711033639 A CN 201711033639A CN 107797536 A CN107797536 A CN 107797536A
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- 241000208125 Nicotiana Species 0.000 title claims abstract description 181
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 181
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005520 cutting process Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 97
- 238000004519 manufacturing process Methods 0.000 claims abstract description 62
- 230000001186 cumulative effect Effects 0.000 claims description 19
- 238000009472 formulation Methods 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 11
- 235000019504 cigarettes Nutrition 0.000 claims description 6
- 210000004712 air sac Anatomy 0.000 claims description 4
- 230000003750 conditioning effect Effects 0.000 claims description 4
- 238000010923 batch production Methods 0.000 claims description 3
- 238000013500 data storage Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 210000004027 cell Anatomy 0.000 claims 2
- 238000000465 moulding Methods 0.000 claims 1
- 210000000352 storage cell Anatomy 0.000 claims 1
- 239000000463 material Substances 0.000 description 8
- 238000004364 calculation method Methods 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41875—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by quality surveillance of production
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/32—Operator till task planning
- G05B2219/32018—Adapt process as function of results of quality measuring until maximum quality
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Automation & Control Theory (AREA)
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- Manufacture Of Tobacco Products (AREA)
Abstract
The present invention proposes a kind of control method for improving and cutting rear cut tobacco moisture up to standard rate, a rear cut tobacco moisture average batch minimum with center for standard moisture offset will be cut in historical data as benchmark batch, production batch tobacco leaf is divided into m subgroup, by gathering benchmark batch and the equal value difference of confidence and volume differences of production batch belted electronic balance belt speed, show that the loosening and gaining moisture of production batch residuals weight adds water shift ratio, and then control the amount of water in device for loosening and gaining moisture, realization cuts rear cut tobacco moisture and is less than 0.2% with center for standard moisture one side offset, rear cut tobacco moisture up to standard rate is cut so as to improve.
Description
Technical field
The present invention relates to one kind to cut rear cut tobacco humidity control method, especially a kind of to be obtained by belted electronic balance belt speed data
Go out loosening steam conditioner tobacco leaf amount of water one side shift ratio, to improve the control method for cutting rear cut tobacco moisture up to standard rate.
Background technology
The rear i.e. smoked sheet of cut tobacco moisture is cut after chopping machines, is cigarette into the moisture content of cut tobacco before next process
A key index in throwing process.The purpose of its technique is the anti-working ability for improving cut tobacco, and matching cut tobacco dries temperature
The design requirement of controlling value is spent, rear cut tobacco moisture control effect is cut and plays an important roll to the interior quality of pipe tobacco.Production process
In, cutting the change of rear moisture content of cut tobacco can cause the processing intensity of cut tobacco drying to change, and influence moisture content of cut tobacco after drying
Stability, can also influence the Filling power of cut tobacco, the structure of pipe tobacco and aesthetic quality etc. after drying, also can be to the inherent matter of cigarette
Amount has an impact.The difference that the difference of rear moisture content of cut tobacco can also make same board name cigarette produce aesthetic quality is cut between batch, is influenceed
The stability of product quality.
Loosening and gaining moisture tube rear end is added water closed-loop control in existing water-adding system, loosening and gaining moisture outlet tobacco leaf can be reduced
Moisture fluctuates, but can not fundamentally solve the offset problem in moisture content in leaves control by the gross；Also before promising elimination loosening and gaining moisture
The influence that supplied materials caking, moisture wave zone come, divides on control program basis in raw water, control program is carried out it is perfect, will be " fixed
Coefficient " plus water management pattern are changed to " variable coefficient " plus water, but the process of " variable coefficient " plus water simply uses supplied materials moisture and supplied materials
The theoretical difference of moisture is calculated, and supplied materials moisture is influenceed by tobacco leaf degree, time, water grading factors, is formulated grade in addition
The factors such as adjustment, Moisture Meter show value deviation influence, and to adding the accurate control of water coefficient to cause many uncertainties, often result in
Control deviation occurs for loosening and gaining moisture amount of water, the final accuracy for influenceing to cut rear cut tobacco moisture, can not fundamentally solve by the gross
Moisture content in leaves Accuracy control problem.Meanwhile counted in production and cut rear cut tobacco average water with 3 months 85 batches produced of the trade mark
Point, wherein, there are 4 batches beyond 1% batch with center for standard moisture one side offset, exist with center for standard moisture one side offset
Batch between 0.5-1% has 11 batches, and technological requirement is cut rear cut tobacco moisture central standard value one side offset and is usually no more than
0.5%, its actual moisture up to standard rate is only 82.4%.
In order to improve the stability of tobacco drying process drying temperature, it is inclined that rear cut tobacco moisture and center for standard moisture are cut in diminution
Shifting amount, propose a kind of control method for improving and cutting rear cut tobacco moisture up to standard rate, it appears particularly important.
The content of the invention
It is an object of the invention to provide the control method that rear cut tobacco moisture up to standard rate is cut in a kind of raising, rear cut tobacco water is cut in diminution
Divide and center for standard moisture offset.
It is a kind of to improve the control method for cutting rear cut tobacco moisture up to standard rate, it is characterised in that：Comprise the following steps：
A：Collection belted electronic balance belt speed cuts rear cut tobacco moisture database and electricity with rear cut tobacco moisture, foundation is cut
Sub- belt conveyer scale belt speed database, selected from database and cut rear cut tobacco moisture average and the one of center for standard moisture offset minimum
Batch establishes the batch in tobacco feeding machine entrance belted electronic balance belt speed sample (α as benchmark batch1、α2、α3…αj…αn),
Using the belted electronic balance belt speed data of unit dosage time in the batch production period as sample elements αj, calculate the sample
Single normal population confidence averageN, n are sample size for wherein j=1,2,3 ...；
B：It is G that production batch is divided into subgroup weight according to tobacco formulation gross weightiKg m subgroup, establish per height
Group is in tobacco feeding machine entrance belted electronic balance belt speed sample (β1、β2、β3…βj…βn), by unit meter in the subgroup production period
The belted electronic balance belt speed data of time are measured as sample elements βj, the single normal population for gathering each subgroup sample is calculated respectively
Confidence averageWherein j=1,2,3 ... n, n are sample size, and i is the m of number i=1,2,3 ... by subgroup, and m is that subgroup is total
Number, GiFor the tobacco leaf weight of i-th of subgroup of production batch；
C：The single normal state for gathering benchmark batch and each subgroup tobacco feeding machine entrance belted electronic balance belt speed sample of production batch is total
The equal value difference of body confidenceWherein i is by the number of subgroup, the m of i=1,2,3 ...；
D：It is all G to gather weightiKg benchmark batch tobacco leaf volume V1With the tobacco leaf volume V of production batch subgroup2, whereinWithWherein i is by the number of subgroup, the m of i=1,2,3 ...；
E：Obtain amount of water difference DELTA G of the production batch subgroup relative to benchmark batchi=(V2-V1)ΔSiWherein i=1,2,
3…m；
F：The loosening and gaining moisture for finally giving production batch residuals weight adds water shift ratio P=Δs Gi/(g-gi), wherein P is to add
Water shift ratio, g criticize tobacco formulation gross weight, g for productioniPassing through by loosening steam conditioner when being counted for production batch subgroup
The cumulative weight of belted electronic balance,g-giFor production batch loosening and gaining moisture tobacco leaf residuals weight.Wherein i is to pass through son
The number of group, the m of i=1,2,3 ...；
G：The production batch loosening and gaining moisture tobacco leaf remainder that the water addition ratio example of adjustment loosening steam conditioner obtains for F-step adds
Water ratio P, so as to change water-adding system amount of water and hot-air steam compensation rate, rear cut tobacco moisture is cut with regulation so that
While ensureing hot blast temperature and drop temperature, rear cut tobacco moisture up to standard rate is cut in raising.
Further, in the step A belted electronic balance belt speed collection for actual flow reach setting flow 97% with
Data when upper.
Further, the rear cut tobacco moisture average of cutting of benchmark batch exists with the unilateral skew of center for standard moisture in the step A
Within 0.2%.
Further, production batch is divided into multiple subgroups according to tobacco formulation gross weight in the step B, per height
Group tobacco leaf cumulative weight is G Kg.
Further, each subgroup with 1000Kg tobacco leaf cumulative weights is G=1000 in the step B, 30 electronics skins
The belt speed sample of belt scale is as a statistics node, i.e. m=30.
Rear cut tobacco moisture up to standard rate is cut in a kind of raising for the control method that rear cut tobacco moisture up to standard rate is cut based on above-mentioned raising
Control system, comprising data acquisition module, control module and execution module, the data acquisition module includes belted electronic balance
Belt speed sensor, infrared moisture meter, belt transmission flowmeter and touch display, the control module include data storage list
Member, comparator and program calculation unit can be set, the execution unit includes frequency converter and Pneumatic diaphragm valve.
The belted electronic balance belt speed sensor at least provided with a signal output part, the infrared moisture meter at least provided with
One signal output part, the belt transmission flowmeter are at least set at least provided with a signal output part, the touch display
There is a data transmission port, the control module is at least provided with three signal input parts, a data transmission port and two
Signal output port, the control module, which passes through the data of acquisition module, is stored in memory cell, by the comparison of comparator
Add water shift ratio with the display in touch display screen is calculated, while export corresponding signal to make to control in loosening and gaining moisture water-adding system
The frequency converter of the make-up water pump frequency of system exports corresponding frequency so as to change the rotating speed of make-up water pump, to change in loosening and conditioning system
Amount of water；The air bladder valve opening on corresponding signal change steam pipe line is exported simultaneously, to change loosening and conditioning system
In quantity of steam.The frequency converter is defeated at least provided with a signal at least provided with a signal input part, the Pneumatic diaphragm valve
Enter end and a valve position signal output end.
The belted electronic balance belt speed sensor signal output part, infrared moisture meter signal output part and belt transmission flow
The signal input part of the signal output part link control module of meter, the number of the data transmission terminal link control module of touch display
According to transmission port, the letter of the signal input part of the frequency converter and the signal input part difference link control module of Pneumatic diaphragm valve
Number output end.
The touch display screen is provided with the window of input and display production batch tobacco formulation gross weight, and real-time moisture is shown
Window, standard moisture setting window, belt transmission flow display window, the input of setting Belt Flow and display window and steaming
Air bladder valve opening size on steam pipe line.
In real time in use, the band of belted electronic balance belt speed sensor time per unit collection production batch or benchmark batch
Speed, the memory cell of control module is sent into, rear cut tobacco moisture is cut in detection to the infrared moisture meter in real time, and is sent into control mould
The memory cell of block, the standard moisture input window input standard moisture in touch display screen, control module are led to
Cross to compare to pick out and cut the unilateral skew of rear cut tobacco moisture average and center for standard moisture within 0.2% and offset is minimum one
Criticize as benchmark batch, the benchmark of belted electronic balance belt speed sensor per unit Dose times collection criticizes the electronics skin in production period
Belt scale belt speed, gathered data is as sample elements αj, so as to establish the batch in tobacco feeding machine entrance belted electronic balance belt speed
Sample (α1、α2、α3…αj…αn), gather the single normal population confidence average of the sampleN, n are sample for wherein j=1,2,3 ...
Capacity；
In the window input production batch tobacco formulation gross weight of the input production batch tobacco formulation gross weight of touch display screen
G, the program calculation unit in control module is according to each subgroup GiKg, production batch tobacco leaf is divided into m subgroup, belted electronic balance
Belt speed sensor time per unit gathers a belt conveyer scale belt speed as i-th of subgroup production period in tobacco feeding machine entrance electricity
The sample elements β of sub- belt conveyer scale belt speed samplej, each subgroup is established in tobacco feeding machine entrance belted electronic balance belt speed sample
(β1、β2、β3…βj…βn), j=1,2,3 ... n, n are sample size, and the subgroup sample is calculated by programmable computing unit collection
Single normal population confidence averageI is the m of number i=1,2,3 ... by subgroup；
The single normal population confidence average of the i-th subgroup is calculated by program calculation unit againIt is total with the single normal state of benchmark batch
Body confidence averageDifferenceShow that weight is all the tobacco leaf weight G of the i-th subgroup by program calculation unit againi
Kg benchmark batch tobacco leaf volume V1With the tobacco leaf volume V of production batch subgroup2, whereinWithThen obtain
The amount of water difference DELTA G that the i-th subgroup of production batch is criticized relative to benchmarki=(V2-V1)ΔSi；Then the skew of final plus water is obtained
Ratio P=Δs Gi/(g-gi), wherein P is amount of water shift ratio, and g criticizes tobacco formulation gross weight, g for productioniFor production batch
The cumulative weight by loosening steam conditioner by belted electronic balance during group statistics,g-giReturned for production batch is loose
Damp tobacco leaf residuals weight.Wherein i is by the number of subgroup, the m of i=1,2,3 ...；
Last control module exports corresponding according to the water addition ratio example of the production batch loosening and gaining moisture tobacco leaf remainder calculated
Signal Regulation frequency converter output frequency to control the rotating speed of the make-up water pump of water-adding system so as to change amount of water, meanwhile, it is defeated
Go out the valve seat opening of Pneumatic diaphragm valve on corresponding signal change loosening and conditioning system steam pipe line to adjust quantity of steam, so that
Ensure and change the content that residue cuts rear cut tobacco moisture while hot blast temperature and drop temperature, rear cut tobacco moisture up to standard is cut in raising
Rate.
Real-time moisture, belt transmission flow and steam that infrared moisture meter measures are shown in the touch display screen
Air bladder valve opening on pipeline.
Further, the input setting Belt Flow in touch display screen, when belt transmission flowmeter collects actual stream
The belt speed data of belted electronic balance collection could be used as benchmark batch to enter in tobacco feeding machine when amount reaches setting flow more than 97%
Mouth belted electronic balance belt speed sample elements αj.Improve the single normal population confidence average of benchmark lot sample sheetAccuracy so that carry
The accuracy of the production batch loosening and gaining moisture tobacco leaf water addition ratio example of high residuals weight, is less than with center for standard moisture one side offset
0.2%.
Compared with prior art, invention describes belted electronic balance belt speed before tobacco feeding to participate in loosening steam conditioner moisture
The method of control, and provide a kind of raising for the control method that rear cut tobacco moisture up to standard rate is cut based on above-mentioned raising and cut rear cut tobacco
The control system of moisture up to standard rate, it can effectively reduce and cut rear cut tobacco moisture and center for standard moisture offset, rear leaf is cut in realization
Silk moisture is less than 0.2% with center for standard moisture one side offset, effectively improves and cuts rear cut tobacco moisture up to standard rate.
Embodiment
Embodiment 1：
Detected in real time by infrared moisture meter and cut rear cut tobacco moisture, and be sent into the memory cell of control module, established
Rise and cut rear cut tobacco moisture database and belted electronic balance belt speed database, the standard moisture in touch display screen is defeated
It is 20% to enter window input standard moisture, recalls the A trades mark by database and cuts rear cut tobacco moisture closest to center for standard moisture
It is worth a batch, average moisture is 19.93% after showing the trade mark chopping, differs 0.07% with center for standard value, utilizes data
Storehouse recall the batch hot blast charging before all belt speed data of belted electronic balance, remove less than 97% setting flow material number end to end
According to rear, the average for calculating confidential interval is 0.09445m/s, the benchmark batch using this batch as the A trades mark.The A trades mark are in loosening and gaining moisture
Preceding tobacco formulation amount is 6980Kg, in the window input production batch of the input production batch tobacco formulation gross weight of touch display screen
Tobacco formulation gross weight 6980Kg, tobacco leaf average cumulative amount be 7250Kg before hot blast charging, belted electronic balance before hot blast feeds
The belt speed sensor belt speed of collection in every 20 seconds, belted electronic balance set flow as 6000Kg/h, and tobacco leaf cumulative amount reaches within 10 minutes
To 1000Kg be one group, every group can gather 30 belt speed data, last group less than 30 belt speed data can also carry out average and
The calculating of amount of water shift ratio., can be with after removing the belt speed data that this batch of production period is expected less than 97% setting flow end to end
The belt conveyer scale belt speed data of the trade mark are divided into 7 groups.By the comparison of control module and following result is calculated：
The confidential interval mean value computation result of first group of belted electronic balance belt speed is 0.09283m/s, and this group of tobacco leaf volume is
Volume of 1000 kilograms of tobacco leaves after belted electronic balance, i.e.,：1000/0.09283=10772.4m3, benchmark batch equal 1000
Kilogram volume of the tobacco leaf after belted electronic balance be：1000/0.09445=10587.6m3 (value will be with every group of cigarette of production batch
Calculating is compared in leaf volume), now, the difference of the tobacco leaf volume of first group of tobacco leaf volume of this batch and benchmark batch is 184.8m3,
Volume differences are positive number, illustrate that first group of tobacco leaf amount of water at loosening steam conditioner is bigger than normal, it is 184.8*0.09283 to add water offset
=17.15 kilograms, now loosening and gaining moisture water addition ratio example setting value is 4.1L/100 kilograms of tobacco leaf, and loosening and gaining moisture belt conveyer scale tobacco leaf
Cumulative amount is 1120 kilograms, and residuals weight is 6980-1120=5860 kilograms, and it is 17.15/5860=to add water shift ratio
The water addition ratio example setting value of loosening steam conditioner is adjusted to by 0.3L/100 kilograms of tobacco leaf, system by 4.1L/100 kilograms automatically
3.8L/100 kilograms of tobacco leaf.Control module in system is according to the production batch loosening and gaining moisture tobacco leaf remainder plus water calculated
The output frequency that ratio exports corresponding Signal Regulation frequency converter is added with controlling the rotating speed of the make-up water pump of water-adding system so as to change
Water, after the adjustment of water addition ratio example, if having influence on loosening steam conditioner hot blast temperature or outlet temperature index, equipment will automatically adjust
Hot-air steam and compensation steam film valve opening, realize the stability of indices.So as to ensure hot blast temperature and go out material temperature
Change the content that residue cuts rear cut tobacco moisture while spending, rear cut tobacco moisture up to standard rate is cut in raising.
When the belt speed data of second group of production batch, which reach calculating, to be required, continue by above-mentioned steps calculating plus water offset,
Result of calculation is -11.4 kilograms, and now, system can add water offset to sum for two groups by program by before, draw 5.75 kilograms, explanation
Tobacco leaf amount of water still floats, and now, loosening steam conditioner entrance tobacco leaf cumulative amount is 2260 kilograms, residuals weight 6980-
2260=4720 kilograms, under preceding two groups of belted electronic balance belt speed plus water shift ratio is 5.75/4720=0.12L/100 kilograms
Tobacco leaf, system continue automatic revision, the water addition ratio example setting value of loosening steam conditioner are adjusted into 3.7L/100 kilograms by 3.8.
When 3rd group of belt speed data reach calculating and required, continue to calculate 1000 kilograms of tobacco leaves by above-mentioned steps and add water to offset
Amount, result of calculation are -0.6 kilogram, and now, three groups can be added water offset integrally to sum by system by program, and the stage of calculating adds water
Offset is 5.15 kilograms, illustrates that tobacco leaf stage amount of water still slightly floats, now, loosening steam conditioner entrance tobacco leaf cumulative amount is
3380 kilograms, residuals weight is 6980-3380=3600 kilograms, and under first three groups belted electronic balance belt speed plus water shift ratio is
5.15/3600=0.1L/100 kilogram tobacco leaf, system continues automatic revision, by the water addition ratio example setting value of loosening steam conditioner by
3.7 are adjusted to 3.6L/100 kilograms.
When 4th group of belt speed data reach calculating and required, continue to calculate 1000 kilograms of tobacco leaves by above-mentioned steps and add water to offset
Amount, result of calculation are -6.1 kilograms, and now, four groups can be added water offset integrally to sum by system by program, and the stage of calculating adds water
Offset is -0.95 kilogram, illustrates that tobacco leaf stage amount of water is slightly floated downward, now, loosening steam conditioner entrance tobacco leaf cumulative amount is
4487 kilograms, residuals weight is 6980-4487=2493 kilograms, under preceding four groups of belted electronic balance belt speed plus water shift ratio
For -0.95/2493=-0.04L/100 kilograms of tobacco leaves, system is continued automatic revision, is not enough to change after being rounded up due to result
Become current ratio, so continuing to carry out adding water by the water addition ratio example of 3.6L/100 kilograms of tobacco leaf.
When 5th group of belt speed data reach calculating and required, continue to calculate 1000 kilograms of tobacco leaves by above-mentioned steps and add water to offset
Amount, result of calculation are 4.3 kilograms, and now, five groups can be added water offset integrally to sum by system by program, and the stage of calculating adds water inclined
Shifting amount is 3.35 kilograms, illustrates that tobacco leaf stage amount of water slightly floats, and now, loosening steam conditioner entrance tobacco leaf cumulative amount is 5614
Kilogram, residuals weight is 6980-5614=1366 kilograms, and under first five set belted electronic balance belt speed plus water shift ratio is
3.35/1366=0.3L/100 kilogram tobacco leaf, system continues automatic revision, by the water addition ratio example setting value of loosening steam conditioner by
3.6 are adjusted to 3.3L/100 kilograms.
When 6th group of belt speed data reach calculating and required, 1000 kilograms of tobacco leaves add water offset result of calculation public for -4.1
Jin, now, six groups can be added water offset integrally to sum by system by program, and the stage of calculating adds water offset to be -0.75 kilogram, says
Bright tobacco leaf stage amount of water is slightly floated downward, and now, loosening steam conditioner entrance tobacco leaf cumulative amount is 6750 kilograms, and residuals weight is
6980-6750=230 kilograms, it is -0.75/230=-0.3L/100 that the first six, which organizes under belted electronic balance belt speed plus water shift ratio,
Kilogram tobacco leaf, system continue automatic revision, and the water addition ratio example setting value of loosening steam conditioner is adjusted into 3.6L/100 public affairs by 3.3
Jin.
When the belt speed data of belted electronic balance reach calculating and required before the charging of 7th group of hot blast, loosening steam conditioner has produced knot
Beam, system calculate 1000 kilograms of tobacco leaves of hot blast charger entrance and add water offset result to be -1.15 kilograms, and system presses program by seven
Group plus water offset are integrally summed, and are calculated this batch of totality and are added water offset to be -1.9 kilograms, overall plus water shift ratio is -1.9/
6980=-0.03L/100 kilograms of tobacco leaf is (i.e.：It is smaller 0.03%) than a reference value moisture to cut the actual moisture of rear cut tobacco, draws this batch
It is about 19.93%-0.03%=19.9% to cut rear cut tobacco moisture, and actual moisture average value is after this batch of tobacco leaf chopping
19.86%, it is only smaller than benchmark batch moisture by 0.07%, meet the design of actual controlling value and a reference value moisture deviation≤0.2%
It is required that.
Embodiment 2：
Standard moisture input window input standard moisture in touch display screen is 20%, is adjusted by database
Going out the B trades mark and cut rear cut tobacco moisture closest to the batch of center for standard value one, average moisture is 20.03% after showing the trade mark chopping,
0.03% is differed with center for standard value, this batch all belt speed samples of belted electronic balance before hot blast charging are recalled using database,
After removing the data of material end to end less than 97% setting flow, the average for calculating confidential interval is 0.08936m/s, and this batch will make
For the benchmark batch of the trade mark.
Tobacco formulation amount of the trade mark before loosening and gaining moisture is 5863Kg, and tobacco leaf average cumulative amount is before hot blast charging
6156Kg, before being fed according to hot blast belted electronic balance belt speed adopt frequency for every 20 seconds once, belted electronic balance set flow as
6000Kg/h, belt conveyer scale belt speed collection is carried out by 10 minutes tobacco leaf cumulative amount 1000Kg, 30 belt speed data of every group of collection are (last
One group of calculating that average and amount of water shift ratio can be also carried out less than 30 but more than 5 belt speed data).Remove this batch of production period
Between end to end material less than 97% setting flow belt speed after, the belt conveyer scale belt speed data of the trade mark can be divided into 6 groups.By controlling mould
The comparison and calculating of block, the confidential interval mean value computation result of first group of belted electronic balance belt speed are 0.08902m/s, this group of cigarette
Leaf volume is volume of 1000 kilograms of tobacco leaves after belted electronic balance, amount, and result of calculation is -3.1 kilograms, now, system meeting
Water offset is added integrally to sum by five groups by program, the stage of calculating adds water offset to be -2.0 kilograms, illustrates that the tobacco leaf stage adds water
Amount is slightly floated downward, and now, loosening steam conditioner entrance tobacco leaf cumulative amount is 5582 kilograms, and residuals weight is 5863-5582=281 public
Jin, under first five set belted electronic balance belt speed plus water shift ratio is -2.0/281=-0.7L/100 kilograms of tobacco leaves, and system continues
Automatic revision, 5.0L/100 kilograms is adjusted to by the water addition ratio example setting value of loosening steam conditioner by 4.3.
When belted electronic balance belt speed data reach calculating and required before 6th group of hot blast charging, loosening steam conditioner has produced knot
Beam, system calculate 1000 kilograms of tobacco leaves of hot blast charger entrance and add water offset result to be -1.8 kilograms, and now, system can be by journey
Six groups are added water offset integrally to sum by sequence, and the stage of calculating adds water offset to be -3.8 kilograms, overall plus water shift ratio for -
3.8/5863=-0.06L/100 kilogram tobacco leaf is (i.e.：It is smaller 0.06%) than a reference value moisture to cut the actual moisture of rear cut tobacco, draws
It is about 20.53%-0.06%=20.47% that this batch, which cuts rear cut tobacco moisture, and actual moisture average value is after this batch of tobacco leaf chopping
20.49%, it is only smaller than benchmark batch moisture by 0.04%, meet the design of actual controlling value and a reference value moisture deviation≤0.2%
It is required that.
Above content is to combine specific embodiment and data further description made for the present invention, it is impossible to is recognized
The specific implementation of the fixed present invention is confined to these explanations.For general technical staff of the technical field of the invention,
Without departing from the inventive concept of the premise, some simple deduction or replace can also be made, should all be considered as belonging to the present invention
Protection domain.
Claims (8)
1. a kind of improve the control method for cutting rear cut tobacco moisture up to standard rate, it is characterised in that：Comprise the following steps：
A：Collection belted electronic balance belt speed cuts rear cut tobacco moisture database and electronics skin with rear cut tobacco moisture, foundation is cut
Belt scale belt speed database, selected from database and cut a rear cut tobacco moisture average batch minimum with center for standard moisture offset
As benchmark batch, the batch is established in tobacco feeding machine entrance belted electronic balance belt speed sample (α1、α2、α3…αj…αn), by this
The belted electronic balance belt speed data of unit dosage time are as sample elements α in batch production periodj, calculating the list of the sample just
State totality confidence averageN, n are sample size for wherein j=1,2,3 ...；
B：It is G that production batch is divided into subgroup weight according to tobacco formulation gross weightiKg m subgroup, each subgroup is established in cigarette
Leaf charger entrance belted electronic balance belt speed sample (β1、β2、β3…βj…βn), by the unit dosage time in the subgroup production period
Belted electronic balance belt speed data as sample elements βj, the single normal population confidence of each subgroup sample of collection calculating is equal respectively
ValueWherein j=1,2,3 ... n, n are sample size, and i is the m of number i=1,2,3 ... by subgroup, and m is that subgroup is total, Gi
For the tobacco leaf weight of i-th of subgroup of production batch；
C：The single normal population of collection benchmark batch and each subgroup tobacco feeding machine entrance belted electronic balance belt speed sample of production batch is put
Believe equal value differenceWherein i is by the number of subgroup, the m of i=1,2,3 ...；
D：It is all G to gather weightiKg benchmark batch tobacco leaf volume V1With the tobacco leaf volume V of production batch subgroup2, whereinWithWherein i is by the number of subgroup, the m of i=1,2,3 ...；
E：Obtain amount of water difference DELTA G of the production batch subgroup relative to benchmark batchi=(V2-V1)ΔSiThe m of wherein i=1,2,3 ...；
F：The loosening and gaining moisture for finally giving production batch residuals weight adds water shift ratio P=Δs Gi/(g-gi), wherein P is amount of water
Shift ratio, g criticize tobacco formulation gross weight, g for productioniPass through electronics by loosening steam conditioner when being counted for production batch subgroup
The cumulative weight of belt conveyer scale,g-giFor production batch loosening and gaining moisture tobacco leaf residuals weight.Wherein i is to pass through subgroup
Number, the m of i=1,2,3 ...；
G：The water addition ratio for the production batch loosening and gaining moisture tobacco leaf remainder that the water addition ratio example of adjustment loosening steam conditioner obtains for F-step
Example P, so as to change water-adding system amount of water and hot-air steam compensation rate, rear cut tobacco moisture is cut with regulation so that ensureing
While hot blast temperature and drop temperature, rear cut tobacco moisture up to standard rate is cut in raising.
2. according to claim 1 improve the control method for cutting rear cut tobacco moisture up to standard rate, it is characterised in that：The A steps
Belted electronic balance belt speed collection in rapid reaches data during setting flow more than 97% for actual flow.
3. according to claim 2 improve cuts the control method of rear cut tobacco moisture up to standard rate, benchmark batch in the step A
Rear cut tobacco moisture average is cut to offset within 0.2% with center for standard moisture one side.
4. the control method of rear cut tobacco moisture up to standard rate, the step B are cut in the raising according to any one of claim 1-3
Middle that production batch is divided into multiple subgroups according to tobacco formulation gross weight, each subgroup tobacco leaf cumulative weight is G Kg.
5. according to claim 4 improve cuts the control method of rear cut tobacco moisture up to standard rate, each subgroup in the step B
It is G=1000 with 1000Kg tobacco leaf cumulative weights, the belt speed sample of 30 belted electronic balances is as a statistics node, i.e. m=
30。
6. a kind of improve the control system for cutting rear cut tobacco moisture up to standard rate, comprising data acquisition module, control module and mould is performed
Block, it is characterised in that：The data acquisition module includes belted electronic balance belt speed sensor, infrared moisture meter, belt transmitting stream
Gauge and touch display screen, the control module include data storage cell, comparator and can set program calculation unit, institute
State execution unit and include frequency converter and Pneumatic diaphragm valve；It is total at least provided with input production batch tobacco formulation in the touch display screen
Window and standard moisture the setting window of weight；
The belted electronic balance belt speed sensor time per unit collection production batch or the belt speed of benchmark batch, are sent into control module
Memory cell, rear cut tobacco moisture is cut in detection to the infrared moisture meter in real time, and is sent into the memory cell of control module, is being touched
The standard moisture input window input standard moisture on display screen is touched, control module is picked out by comparing calculating and cut
Cut tobacco moisture average is offset within 0.2% with center for standard moisture one side afterwards and a collection of of offset minimum is used as benchmark batch,
Belted electronic balance belt speed in the benchmark batch production period of belted electronic balance belt speed sensor per unit Dose times collection, collection
Data are as sample elements αj, so as to establish the batch in tobacco feeding machine entrance belted electronic balance belt speed sample (α1、α2、α3…
αj…αn), calculate the single normal population confidence average for gathering the sampleN, n are sample size for wherein j=1,2,3 ...；
In the window input production batch tobacco formulation gross weight g of the input production batch tobacco formulation gross weight of touch display screen, control
Program calculation unit in molding block is according to each subgroup GiKg, production batch tobacco leaf is divided into m subgroup, belted electronic balance belt speed
Sensor time per unit gathers a belt conveyer scale belt speed as i-th of subgroup production period in tobacco feeding machine entrance electronics skin
The sample elements β of belt scale belt speed samplej, each subgroup is established in tobacco feeding machine entrance belted electronic balance belt speed sample (β1、β2、
β3…βj…βn), j=1,2,3 ... n, n are sample size, and the single normal state for calculating the subgroup sample by programmable computing unit is total
Body confidence averageI is the m of number i=1,2,3 ... by subgroup；
The single normal population confidence average of the i-th subgroup is collected by program calculation unit againPut with benchmark batch single normal population
Believe averageDifferenceThe tobacco leaf weight G that weight is all the i-th subgroup is calculated by program calculation unit againi
Kg benchmark batch tobacco leaf volume V1With the tobacco leaf volume V of production batch subgroup2, whereinWithThen obtain
The amount of water difference DELTA G that the i-th subgroup of production batch is criticized relative to benchmarki=(V2-V1)ΔSi；Then draw and add water shift ratio P=
ΔGi/(g-gi), wherein P is amount of water shift ratio, and g criticizes tobacco formulation gross weight, g for productioniWhen being counted for production batch subgroup
The cumulative weight by loosening steam conditioner by belted electronic balance,g-giRemained for production batch loosening and gaining moisture tobacco leaf
Remaining weight.Wherein i is by the number of subgroup, the m of i=1,2,3 ...；
Last control module exports corresponding letter according to the water addition ratio example of the production batch loosening and gaining moisture tobacco leaf remainder calculated
The output frequency of number regulation frequency converter to control the rotating speed of the make-up water pump of water-adding system so as to change amount of water, meanwhile, export phase
The signal answered changes the valve seat opening of Pneumatic diaphragm valve on loosening and conditioning system steam pipe line to adjust quantity of steam, so as to ensure
Change the content that residue cuts rear cut tobacco moisture while hot blast temperature and drop temperature, rear cut tobacco moisture up to standard rate is cut in raising.
7. according to claim 6 improve the control system for cutting rear cut tobacco moisture up to standard rate, it is characterised in that：It is aobvious touching
Setting Belt Flow input window is additionally provided with display screen, the input setting Belt Flow in touch display screen, when belt transmitting stream
The belt speed data that gauge collects belted electronic balance collection when actual flow reaches setting flow more than 97% could be used as benchmark
Criticize in tobacco feeding machine entrance belted electronic balance belt speed sample elements αj。
8. according to claim 7 improve the control system for cutting rear cut tobacco moisture up to standard rate, it is characterised in that：The touch
It is additionally provided with Real-time Water sub-display window mouth on display screen, belt transmission flow display window, air bladder valve opening on steam pipe line
Display window.
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Effective date of registration: 20190930 Address after: 650231, 367 Jin Hong Road, Wuhua District, Yunnan, Kunming Applicant after: Hongyun Honghe Tobacco (Group) Co., Ltd. Address before: 833200 Hubei Road, Kanas, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region, No. 306 Applicant before: Hongyun Honghe Tobacco (Group) Co., Ltd. Xinjiang Cigarette Factory |
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