CN105628705A - Automatic deviation detection, alarm and rectification method for moisture meters in loosening and conditioning process - Google Patents
Automatic deviation detection, alarm and rectification method for moisture meters in loosening and conditioning process Download PDFInfo
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- CN105628705A CN105628705A CN201510973155.8A CN201510973155A CN105628705A CN 105628705 A CN105628705 A CN 105628705A CN 201510973155 A CN201510973155 A CN 201510973155A CN 105628705 A CN105628705 A CN 105628705A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N2021/8411—Application to online plant, process monitoring
- G01N2021/8416—Application to online plant, process monitoring and process controlling, not otherwise provided for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N2021/8466—Investigation of vegetal material, e.g. leaves, plants, fruits
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/12—Circuits of general importance; Signal processing
- G01N2201/127—Calibration; base line adjustment; drift compensation
- G01N2201/12746—Calibration values determination
- G01N2201/12753—Calibration values determination and storage
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/12—Circuits of general importance; Signal processing
- G01N2201/127—Calibration; base line adjustment; drift compensation
- G01N2201/12746—Calibration values determination
- G01N2201/12769—Calibration values determination and adjusting controls, e.g. zero and 100 %
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Abstract
The invention discloses an automatic deviation detection, alarm and rectification method for moisture meters in a loosening and conditioning process. The method comprises the following steps: first of all, materials with approximated moisture contents of tobacco in a formula are classified and subjected to module division, and moisture meter channels are arranged at a moisture regain material inlet and a moisture regain material outlet by adopting the characteristic of the consistency of the detection average of the material moisture contents in the same module; then the magnitude of the moisture contents of the materials in tobacco sets are detected in real time by the moisture meters, the average of the module moisture contents is automatically calculated by a data processing module in an MES (manufacturing execution system), and a detection alarm chart is drawn. Therefore, alarm for deviation of the moisture meters or automatic parameter adjustment is performed based on the characteristic of consistency between the tobacco moisture content average detected by the infrared moisture meters and the actually measured average (standard mid-value in a control chart), detection precision of the moisture meters can be further monitored, alarmed and prompted, the moisture meters are verified, the moisture meter verification working load is reduced, the moisture content difference between batches is effectively reduced, and the stability and the effectiveness of the process control are improved.
Description
Technical field
The present invention relates to technical field of tobacco processing, particularly relate to a kind of loosening and gaining moisture operation Moisture Meter deviation automatic detection warning and method for correcting error.
Background technology
Loosening and gaining moisture operation is one important procedure of tobacco processing course, in the process of Nicotiana tabacum L. processing, need, in the loosening and gaining moisture course of processing, smoked sheet is carried out loose and warming and humidifying, make the moisture content of smoked sheet and temperature increase to certain level, in order to meet the technological requirement of following process. The conventional Medicated cigarette loosening and gaining moisture control method of tradition is: production process is according to the trade mark by batch producing, and the random outbound in tobacco leaf formulation storehouse pressed by every batch of sheet cigarette raw material. Loosening and gaining moisture operation is processed according to the order of sheet cigarette outbound, and loosening steam conditioner carries out warming and humidifying according to moisture regain outlet water content requirement. Therefore, whether moisture content of outlet instrument is accurate, and loosening and gaining moisture process quality stability is had important function. And at present in actual production process, Moisture Meter is difficult to accurate verification, therefore can only play the effect of reference aborning, affects the stability of product quality. Main reason is that: one be every trade mark every batch produce time, although formulation library presses tobacco leaf formulation outbound, but each tobacco leaf degree presses the random outbound of optimal path according to the dispatching patcher in composition of raw materials storehouse in same formula, therefore, in every batch of leaf tobacco production process, the discharging order of Nicotiana tabacum L. is random. And the infrared moisture meter of application is to better for one matter measurement effect in the loosening and gaining moisture course of processing, and the sheet cigarette raw material in tobacco leaf formulation is because of the difference such as the place of production, grade, its chemical component difference is bigger, the moisture content that actual measurement moisture content and infrared moisture meter detect differs greatly, the material taken during because of every sub-sampling is difficult to determine specific grade, cause and cannot judge whether Moisture Meter zero point drifts about, it is impossible to moisture is calibrated.
In actual Moisture Meter verification operation process, Moisture Meter is demarcated and is sampled 10 Oven Method detection moisture content when generally showing moisture stabilization by whole tobacco leaf formulation certain time period in two minutes, when taken sample tobacco sample Oven Method detection moisture content meansigma methods detects the difference of show value more than 0.3% with infrared moisture meter. Moisture Meter is verified, causes Moisture Meter often repeatedly to calibrate, but be difficult to accurate alignment, between causing on the one hand loosening and gaining moisture outlet moisture content to criticize and batch in moisture deviation relatively big, cause calibration operation amount very big on the other hand.
Summary of the invention
It is an object of the invention to a kind of loosening and gaining moisture operation Moisture Meter deviation automatic detection warning and method for correcting error, loosening and gaining moisture operation infrared moisture meter verifying work amount can be reduced, be effectively improved the stability of material water ratio after moisture regain simultaneously, improve crudy.
The technical solution used in the present invention is:
A kind of loosening and gaining moisture operation Moisture Meter deviation automatic detection warning and method for correcting error, comprise the following steps:
A: all Nicotiana tabacum L. moisture content weighted means recorded by Oven Method, and this numerical value is input to MES system, it is standard value; Value after described standard value upper and lower floating certainty ratio is designated as moisture content upper and lower limit; Described standard value includes inlet water and sets up separately and put fixed and moisture content of outlet setting value;
B: sheet cigarette raw material close for moisture content in each tobacco leaf formulation in all Nicotiana tabacum Lves is combined into a module, it is determined that the quantity of module in a leaf group, and the module in each leaf group is ranked up according to its moisture content extreme difference size according to modules;
C: during charging, each leaf group is by sequential feeding described in step A, and the charging aperture before moisture regain, the discharging opening after moisture regain are set up first, second Moisture Meter passage respectively, and Moisture Meter is verified;
The sheet cigarette raw material of process is carried out the detection of moisture content by the Moisture Meter of D: first, second Moisture Meter passage, and detected value is uploaded to MES system by data collecting system detected value, data are processed by the data processing software in MES system according to processing rule, after process, data are carried out described point by MES system by data, draw detection warning figure;
E: in detection warning figure, when first and or the water cut value of second point of water instrument lane testing, if having when having four points continuously beyond upper and lower limit LC, system then sends alarm signal immediately to alarm device, and alarm device is reported to the police.
A described point water instrument verification comprises the steps:
First select the close centre of order in one of them tobacco leaf formulation, and in shared tobacco leaf formulation, a kind of Nicotiana tabacum L. of large percentage carries out charging;
Then the charging aperture before moisture regain, the discharging opening after moisture regain are sampled detection, and testing result and Moisture Meter Air conduct measurement result are compared, and according to the two difference, Moisture Meter are carried out skew and adjust.
In described step E, for the Nicotiana tabacum L. in same tobacco leaf formulation, when the first Moisture Meter sense channel does not find to report to the police, and the second Moisture Meter sense channel detects warning, then it represents that Moisture Meter there occurs skew, it is necessary to Moisture Meter is verified again.
Described detection warning figure is rectangular axes, and transverse axis is time shaft, and vertical pivot is moisture content size, also sets up the upper and lower warning line of detection warning figure in detection warning figure, and the described big moisture content of upper and lower warning line is little of moisture content upper and lower limit.
Described standard value upper and lower floating certainty ratio is 0.3%-1.0%.
In described step D, when the MES system detected value to receiving carries out described point, if the Moisture Meter detected value received is without departing from the moisture content upper and lower limit set, and there are continuous three points when detecting the side of warning figure Plays value, the deviation that then entering water rate setting value can be added or deduct between continuous three points and standard value by MES system automatically sets up definite value separately as new inlet water, and simultaneity factor produces automatically to adjust and adds water flow set point.
The present invention utilizes grouping Processing theory, raw material close for formula Nicotiana tabacum L. moisture content is sorted out sub-module, utilize the equal modules raw aqueous rate detection consistent feature of meansigma methods get damp again into, discharging opening is configured Moisture Meter passage, then pass through the detection leaf group raw aqueous rate size that Moisture Meter is real-time, and by the automatic computing module moisture content meansigma methods of data processing module in MES system, draw detection warning figure, thus detecting the Nicotiana tabacum L. moisture content average characteristic consistent with actual measurement average (control drafting standard intermediate value) according to infrared moisture meter to carry out the alarm of Moisture Meter deviation or the automatic adjustment of parameter, and then can realize being monitored Moisture Meter accuracy of detection reporting to the police, remind and Moisture Meter is verified, alleviate Moisture Meter verifying work burden, effectively lower moisture content difference between criticizing, improve stability and the effectiveness of process control.
Accompanying drawing explanation
Fig. 1 is the flow chart of the present invention.
Detailed description of the invention
As it is shown in figure 1, the present invention comprises the following steps:
A: all Nicotiana tabacum L. moisture content weighted means recorded by Oven Method, and this numerical value is sent to MES system, it is standard value; Value after the upper and lower floating certain limit of described standard value is designated as moisture content upper and lower limit; The upper and lower float value of described standard value is �� 0.3%. Described standard value includes entrance moisture and moisture content of outlet setting value;
B: sheet cigarette raw material close for moisture content in each tobacco leaf formulation in all Nicotiana tabacum Lves is combined into a module, it is determined that the quantity of module in a leaf group, and the module in each leaf group is ranked up according to its moisture content extreme difference size of modules;
C: during charging, each leaf group is by sequential feeding described in step A, and the charging aperture before moisture regain, the discharging opening after moisture regain are set up first, second Moisture Meter passage respectively, and Moisture Meter is verified; A described point water instrument verification comprises the steps:
First select the close centre of order in one of them tobacco leaf formulation, and in shared tobacco leaf formulation, a kind of Nicotiana tabacum L. of large percentage carries out charging;
Then the charging aperture before moisture regain, the discharging opening after moisture regain are sampled detection, and testing result and Moisture Meter Air conduct measurement result are compared, and according to the two difference, Moisture Meter are carried out skew and adjust.
First, second described Moisture Meter sense channel is that the conveying passage having both sides to be fixedly installed infrared detection Moisture Meter is constituted.
The sheet cigarette raw material of process is carried out the detection of moisture content by the Moisture Meter of D: first, second Moisture Meter passage, and detected value is sent to processor, processor receives the detected value of Moisture Meter, and detected value is sent to MES system, the MES system detected value to receiving carries out described point, draws detection warning figure; Described detection warning figure is rectangular axes, and transverse axis is time shaft, and vertical pivot is moisture content size, also sets up the upper and lower warning line of detection warning figure in detection warning figure, and the described big moisture content of upper and lower warning line is little of moisture content upper and lower limit.
In described step D, when the MES system detected value to receiving carries out described point, if the Moisture Meter detected value received is without departing from the moisture content upper and lower limit set, and there are continuous three points when detecting the side of warning figure Plays value, the deviation that then entering water rate setting value can be added or deduct between continuous three points and standard value by MES system automatically sets up definite value separately as new inlet water, and simultaneity factor produces automatically to adjust and adds water flow set point;
E: in detection warning figure, when first and or the water cut value of second point of water instrument lane testing, if having when having four points continuously beyond upper and lower limit LC, system then sends alarm signal immediately to alarm device, and alarm device is reported to the police.
In described step E, for the Nicotiana tabacum L. in same tobacco leaf formulation, when the first Moisture Meter sense channel does not find to report to the police, and the second Moisture Meter sense channel detects warning, then it represents that Moisture Meter there occurs skew, it is necessary to Moisture Meter is verified again.
Embodiment 1
25 grade sheet cigarette raw materials of formula A:50 case, gross weight 10000kg,
(1) Oven Method detection Nicotiana tabacum L. moisture content before first batch of production; Calculating extreme difference is 2.8%, and group spacing is defined as 0.7, then number of packet is 4;
(2) by moisture content difference, sheet cigarette raw material is divided into 4 modules, belted electronic balance accumulating weight weighs, the first module moisture content (10.5%-11.2%, weighted mean is 10.8%), 5 grade 12 casees, 2400kg; 6 grade 13 casees of second module (11.2%-11.9%, weighted mean is 11.6%), 2600kg; 7 grade 14 casees of three module (11.9%-12.6%, weighted mean is 12.3%), 2800kg; 7 grade 11 casees of 4th module (12.6%-13.3%, weighted mean is 12.9%), 2200kg; Moisture regain system starts to add water according to supplied materials signal lag for 46 seconds;
(3), when loosening and gaining moisture operation produces, it is 594kg/h that the first module adds discharge, and steam flow is 80kg/h, and adding water coefficient is 0.80, and hot blast temperature is 80 DEG C, and moisture regain system starts to add water according to supplied materials signal lag for 46 seconds; Belted electronic balance claims to obtain sheet cigarette weight cumulative amount when reaching 2400kg, starts to produce the second module, and 46 seconds moisture regain systems of time delay will add discharge and be adjusted to 400kg/h, and steam flow is 90kg/h, and adding water coefficient is 0.90, and hot blast temperature is 85 DEG C; Belted electronic balance claims to obtain sheet cigarette weight cumulative amount when reaching 5000kg, starts to produce three module, and 46 seconds loosening and conditioning systems of time delay will add water flow set point and be set to 335kg/h, and steam flow is 100kg/h, and adding water coefficient is 1.00, and hot blast temperature is 90 DEG C; Belted electronic balance claims to obtain sheet cigarette weight cumulative amount when reaching 7800kg, time delay 46 seconds, starts to produce the 4th module, and loosening and conditioning system will add that water flow set point is set to 291kg/h, steam flow is 105kg/h, and adding water coefficient is 1.15, and hot blast temperature is 95 DEG C;
The belted electronic balance of loosening and gaining moisture operation adopts control type belted electronic balance, and in producing overall process, belted electronic balance sets flow 6500kg/h, and moisture content of outlet setting value is 19.0%.
(4) system acquisition is 19,1% to a batch loosening and gaining moisture outlet moisture content meansigma methods, is 0.1% with the difference of outlet moisture content setting value 19%, and system described point, without departing from scope, need not verify.
(5) system acquisition is 12.18% to a batch loosening and gaining moisture entering water rate meansigma methods, is 0.1% with the difference of entering water rate setting value 12.08, and system described point, without departing from scope, need not verify.
Embodiment 2
15 grade sheet cigarette raw materials of formula B:40 case, gross weight 7750kg;
(1) Oven Method detection Nicotiana tabacum L. moisture content before first batch of production; Calculating extreme difference is 1.8%, and group spacing is defined as 0.6%, then number of packet is 3;
(2) by smoked sheet moisture content group spacing 0.6%, sheet cigarette raw material is divided into 3 modules, the first module (4 grade 8 casees of moisture content (11.5%-12.1%, moisture content weighted mean 11.8%), 1350kg; 6 grade 18 casees of second module (12.1%-12.7%, moisture content weighted mean 12.5%), 3600kg; 5 grade 14 casees of three module (12.7%-13.3%, moisture content weighted mean 13.0%), 2800kg; Weighed by belted electronic balance accumulating weight;
(3), when loosening and gaining moisture operation produces, it is 443kg/h that the first module adds discharge, and steam flow is 75kg/h, and adding water coefficient is 0.80, and hot blast temperature is 80 DEG C, and moisture regain system starts to add water according to supplied materials signal lag for 46 seconds; Belted electronic balance claims to obtain sheet cigarette weight cumulative amount when reaching 2400kg, starts to produce the second module, and 46 seconds moisture regain systems of time delay will add discharge and be adjusted to 294kg/h, and steam flow is 90kg/h, add water coefficient be 0.90, hot blast temperature be 85 DEG C; Belted electronic balance claims to obtain sheet cigarette weight cumulative amount when reaching 5000kg, start to produce three module, 46 seconds loosening and conditioning systems of time delay will add water flow set point and be automatically set as 225kg/h, and steam flow is 100kg/h, add water coefficient be 1.00, hot blast temperature be 90 DEG C;
The belted electronic balance of loosening and gaining moisture operation adopts control type belted electronic balance, and in producing overall process, belted electronic balance sets flow 6500kg/h, and moisture content of outlet setting value is 18.0%.
(4) system acquisition is 19,1% to a batch loosening and gaining moisture outlet moisture content meansigma methods, is 0.1% with the difference of outlet moisture content setting value 19%, and system described point, without departing from scope, need not verify.
(5) system acquisition is 12.56% to a batch loosening and gaining moisture entering water rate meansigma methods, is 0.03% with the difference of entering water rate setting value 12.53%, and system described point, without departing from scope, need not verify.
By above-described embodiment it can be seen that the invention have the advantage that and sheet cigarette raw material close for moisture content in tobacco leaf formulation is combined into a module, every batch of leaf group of every trade mark, by some module compositions, can arrange corresponding machined parameters according to module processing characteristics during production. Moisture Meter can be monitored warning by system automatically, reminds and adjusts parameter in time and Moisture Meter is verified, alleviates Moisture Meter verifying work burden, effectively moisture content difference between control batch.
Above-mentioned the specific embodiment of the present invention is described; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme, those skilled in the art need not pay various amendments or deformation that creative work can make still within protection scope of the present invention.
Claims (6)
1. a loosening and gaining moisture operation Moisture Meter deviation automatic detection warning and method for correcting error, it is characterised in that: comprise the following steps:
A: all Nicotiana tabacum L. moisture content weighted means recorded by Oven Method, and this numerical value is input to MES system, it is standard value; Value after described standard value upper and lower floating certainty ratio is designated as moisture content upper and lower limit; Described standard value includes inlet water and sets up separately and put fixed and moisture content of outlet setting value;
B: sheet cigarette raw material close for moisture content in each tobacco leaf formulation in all Nicotiana tabacum Lves is combined into a module, it is determined that the quantity of module in a leaf group, and the module in each leaf group is ranked up according to its moisture content extreme difference size according to modules;
C: during charging, each leaf group is by sequential feeding described in step A, and the charging aperture before moisture regain, the discharging opening after moisture regain are set up first, second Moisture Meter passage respectively, and Moisture Meter is verified;
The sheet cigarette raw material of process is carried out the detection of moisture content by the Moisture Meter of D: first, second Moisture Meter passage, and detected value is uploaded to MES system by data collecting system detected value, data are processed by the data processing software in MES system according to processing rule, after process, data are carried out described point by MES system by data, draw detection warning figure;
E: in detection warning figure, when first and or the water cut value of second point of water instrument lane testing, have four points continuously beyond upper and lower limit L if hadCTime, system then sends alarm signal immediately to alarm device, and alarm device is reported to the police.
2. loosening and gaining moisture operation Moisture Meter deviation automatic detection warning according to claim 1 and method for correcting error, it is characterised in that: a described point water instrument verification comprises the steps:
First select the close centre of order in one of them tobacco leaf formulation, and in shared tobacco leaf formulation, a kind of Nicotiana tabacum L. of large percentage carries out charging;
Then the charging aperture before moisture regain, the discharging opening after moisture regain are sampled detection, and testing result and Moisture Meter Air conduct measurement result are compared, and according to the two difference, Moisture Meter are carried out skew and adjust.
3. loosening and gaining moisture operation Moisture Meter deviation automatic detection warning according to claim 2 and method for correcting error, it is characterized in that: in described step E, for the Nicotiana tabacum L. in same tobacco leaf formulation, when the first Moisture Meter sense channel does not find to report to the police, and the second Moisture Meter sense channel detects warning, then represent that Moisture Meter there occurs skew, it is necessary to Moisture Meter is verified again.
4. loosening and gaining moisture operation Moisture Meter deviation automatic detection warning according to claim 3 and method for correcting error, it is characterized in that: described detection warning figure is rectangular axes, and transverse axis is time shaft, vertical pivot is moisture content size, also setting up the upper and lower warning line of detection warning figure in detection warning figure, the described big moisture content of upper and lower warning line is little of moisture content upper and lower limit.
5. loosening and gaining moisture operation Moisture Meter deviation automatic detection warning according to claim 4 and method for correcting error, it is characterised in that: described standard value upper and lower floating certainty ratio is 0.3%-1.0%.
6. loosening and gaining moisture operation Moisture Meter deviation automatic detection warning according to claim 5 and method for correcting error, it is characterized in that: in described step D, when the MES system detected value to receiving carries out described point, if the Moisture Meter detected value received is without departing from the moisture content set, lower limit, and there are continuous three points when detecting the side of warning figure Plays value, the deviation that then entering water rate setting value can be added or deduct between continuous three points and standard value by MES system automatically sets up definite value separately as new inlet water, simultaneity factor produces automatically to adjust and adds water flow set point.
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Cited By (5)
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| CN107797536A (en) * | 2017-10-30 | 2018-03-13 | 红云红河烟草（集团）有限责任公司新疆卷烟厂 | It is a kind of to improve the control method for cutting rear cut tobacco moisture up to standard rate |
| CN108685142A (en) * | 2018-08-27 | 2018-10-23 | 红塔烟草(集团)有限责任公司 | Each process moisture content of outlet maintaining method in a kind of cigarette primary processing process |
| CN112327960A (en) * | 2020-10-20 | 2021-02-05 | 张家口卷烟厂有限责任公司 | Intelligent control system for loosening and dampening equipment |
| CN113096747A (en) * | 2021-04-12 | 2021-07-09 | 江苏丰尚智能科技有限公司 | Method and device for predicting moisture content of discharged material of dryer and computer equipment |
| CN115349657A (en) * | 2022-08-28 | 2022-11-18 | 红云红河烟草(集团)有限责任公司 | System and method for early warning abnormity of online moisture meter in key process of wire making |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112327960B (en) * | 2020-10-20 | 2022-02-11 | 张家口卷烟厂有限责任公司 | Intelligent control system for loosening and dampening equipment |
| CN113096747A (en) * | 2021-04-12 | 2021-07-09 | 江苏丰尚智能科技有限公司 | Method and device for predicting moisture content of discharged material of dryer and computer equipment |
| CN115349657A (en) * | 2022-08-28 | 2022-11-18 | 红云红河烟草(集团)有限责任公司 | System and method for early warning abnormity of online moisture meter in key process of wire making |
| CN115349657B (en) * | 2022-08-28 | 2023-10-24 | 红云红河烟草(集团)有限责任公司 | Abnormality early warning system and method for online moisture meter of wire making key process |
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