CN101940353B - Method for processing cigarettes with low content of heavy metal Cd - Google Patents
Method for processing cigarettes with low content of heavy metal Cd Download PDFInfo
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- CN101940353B CN101940353B CN2010102882944A CN201010288294A CN101940353B CN 101940353 B CN101940353 B CN 101940353B CN 2010102882944 A CN2010102882944 A CN 2010102882944A CN 201010288294 A CN201010288294 A CN 201010288294A CN 101940353 B CN101940353 B CN 101940353B
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Abstract
The invention provides a method for processing cigarettes to reduce content of heavy metal Cd, and belongs to the technical field of cigarette processing methods. The method comprises the following procedures: microwave loosening, loose rewetting, heating and moistening of blades, leaf wetting and material charging, leaf storage, cutting, HT and drying of cut tobacco, fragrance addition, cut tobacco storage and coiling and wrapping; the process parameters of the microwave loosening procedure is that: microwave power is 121 kilowatts and the processing time is 240 seconds; the process parameters of the loose rewetting procedure is that: the vapor pressure of gas and water nozzles is 0.3MPa, the air-returning temperature is 70 DEG C and the rotary speed of the cylinder body is 13r/min; and the process parameters of the HT and drying of cut tobacco is that: the working vapor pressure of HT is 0.6MPa, the hot air temperature is 135 DEG C, the opening degree of the moisture-discharging air door is 80 percent, the opening degree of the hot air door is 30 percent and the rotary speed of the cylinder body is 13r/min. By optimizing the process parameters, the heavy metal Cd content of cigarettes is reduced, and the advantages of the method in lowering the heavy metal Cd content of cigarettes are affirmed.
Description
Technical field
The present invention relates to cigarette processing method technical field, be specifically related to a kind of cigarette technological method for processing that reduces content of beary metal Cd.
Background technology
Heavy metal not only has very big influence to the yield and quality of flue-cured tobacco, and smoker and environment are had tremendous influence.Flue-cured tobacco be a kind of be the special economic crop of main purpose to suck, when containing excessive heavy metal in the tobacco leaf, in aspiration procedure, heavy metal will get into human body through main flume, cause potential hazard to human body.Inorganic element content in tobacco and the flue gas is very low, but harmful elements such as As, Cd, Cr, Hg, Pb, Se, Ni have savings toxicity in human body.In 107 kinds of cigarette smoke harmful components of U.S. 1989 report, As, Cd, Cr, Pb, Ni, Cu, Hg etc. are in the row impressively, and nineteen ninety Huffman (Hoffman) is also listed As, Cd, Cr, Pb, Ni, Se, Hg among 44 kinds of harmful components of tobacco in.Metal Cd is shifted to stem, leaf and seed by root at the different growing stage of plant, and the result of study of Ma Xinming shows that tobacco leaf is the maximum position of cadmium cumulant.(Cao Xianglian, Hebei agricultural sciences, 2009,13)
" prevent to contact tobacco smoke " in " Framework Convention on Tobacco Control ", " control of tobacco composition and disclosure " two criterions require national governments to work up more severe " Tobacco Control " laws and regulations; Impel tobacco productive corporation when reducing releasing content of coke tar in cigarette; More want the burst size of main harmful components in the strict control cigarette smoke; Smoking has been the main challenge that tobacco business faces with health, and lowering harm and decreasing coking is related to the survival and development of tobacco business.The research of Elements C d mainly concentrates on the detection method at present in the tobacco, as for how selecting suitable technological parameter to reduce cigarette Cd Study on content, does not appear in the newspapers as yet.This research is tried hard to from the new way of cigarette processing technology angle exploration cigarette lowering harm and decreasing coking; Go out the cigarette working process parameter through assay optimization,, use the method processing cigarette of this technological parameter through the setting reduction content of beary metal of technological parameter; Lowered the content of cigarette Cd to a certain extent; Utilize micro-wave digestion pre-treatment sample, icp ms (ICP-MS) detects, and has confirmed that this technique processing method reduces the beneficial effect of cigarette Cd content.
Summary of the invention
The objective of the invention is the content of the combination of process parameters of optimizing application in cigarette throwing workshop section, thereby a kind of cigarette technological method for processing that reduces content of beary metal Cd is provided with Cd in the reduction cigarette.
The technical solution of purpose that realizes the present invention is following: a kind of cigarette technological method for processing that reduces content of beary metal Cd comprises following operation: microwave is loose, loosening and gaining moisture, blade warming and humidifying, leaves moisting are reinforced, storage leaf, chopping, HT+ baking silk, perfuming, storage silk, wraparound.The optimal process parameter of the loose operation of microwave is: 121 kilowatts of microwave powers, 240 seconds process times; The optimal process parameter of loosening and gaining moisture operation is: vapour, (operating) water nozzle steam pressure 0.3MPa, 70 ℃ of return air temperatures, drum speed 13r/min; The optimal process parameter of HT+ drying process is: HT working steam pressure 0.6MPa, 135 ℃ of hot blast temperatures, humidity discharging throttle opening 80%, hot blast throttle opening 30%, drum speed 13r/min, all the other procedure technology parameter constants; The leaf silk warming and humidifying operation of HT for adopting tunnel type leaf silk warming and humidifying machine to carry out.
The sample that the scene is obtained carries out proper process, satisfies chopping respectively, rolls requirement, rolls into finally that elasticity is suitable, the cigarette of good uniformity props up.At last sample is smoked panel test, judge aesthetic quality's change direction and intensity of variation.
More than each processes employ optimize combination of process parameters accordingly, can effectively reduce Cd content in the obtained cigarette product.Need to prove that the selection of parameter level receives the certain influence of objective condition because this test is directly carried out in suitability for industrialized production equipment.
The present invention compared with prior art beneficial effect is:
1, a kind of cigarette technological method for processing that reduces content of beary metal Cd is provided.
2, explored the new way of cigarette lowering harm and decreasing coking from cigarette processing technology angle.
3, to the regulation and control of flue-cured tobacco content of beary metal, mainly concentrate on the tobacco cultivation field at present, as utilize plastic-film-covered cultivation to reduce the flue-cured tobacco content of beary metal; This research then reduces content of beary metal through the setting of technological parameter, has important theory and inquires into meaning and actual application value.
The specific embodiment
Below in conjunction with embodiment the present invention is done further explanation.
The tobacco process code requirement of issuing according to country at present, set cigarette processing technology for making tobacco threds comprises following operation: microwave is loose, loosening and gaining moisture, blade warming and humidifying, leaves moisting are reinforced, storage leaf, chopping, HT+ baking silk, perfuming, storage silk etc.In cigarette throwing workshop section, mainly be through the tobacco special processing equipment, for example FT112 type microwave tobacco bale loosening system, WQ3313 type drum-type blade damping machine, SH625 type thin board type cut-tobacco drier etc. are carried out the operation task.The task of the loose operation of microwave is suitably to improve the smoked sheet temperature, and loose smoked sheet further improves the anti-processability of smoked sheet.The present invention at the optimal process parameter of the loose operation of microwave is: 121 kilowatts of microwave powers, 240 seconds process times; The task of loosening and gaining moisture operation is moisture content and the temperature that increases smoked sheet, improves the anti-processability of smoked sheet, makes section back smoked sheet loose, the aesthetic quality who improves smoked sheet.The present invention at the optimal process parameter of loosening and gaining moisture operation is: vapour, (operating) water nozzle steam pressure 0.3MPa, 70 ℃ of return air temperatures, drum speed 13r/min; The task of HT+ drying process is the moisture of control leaf silk, satisfies the following process requirement; Improve the aesthetic quality of leaf silk, improve leaf silk filling capacity and anti-processability, reach the coordination of the two.The present invention at the optimal process parameter of HT+ drying process is: HT working steam pressure 0.6MPa, 135 ℃ of hot blast temperatures, humidity discharging throttle opening 80%, hot blast throttle opening 30%, drum speed 13r/min, all the other procedure technology parameter constants; The leaf silk warming and humidifying operation of HT for adopting tunnel type leaf silk warming and humidifying machine to carry out.The tobacco sample that production obtains is for optimizing sample.To optimize sample utilizes the inductivity coupled plasma mass spectrometry analytical technology to detect to draw testing result.
Embodiment 1
To produce the tobacco sample that obtains as control sample by set cigarette technology for making tobacco threds parameter; In the loose operation of microwave, press the optimization working process parameter combination adjusting process parameter of microwave power 121KW, process time 240s, all the other procedure technology parameter constants are produced the tobacco sample that obtains for optimizing sample; The Cd content detection of two samples is seen table 1.
Loose process optimization sample of table 1 microwave and control sample Cd content detection result
| The sample title | ?Cd(μg/g) | Microwave power (KW) | Process time (second) |
| Control sample | 3.718 | 140 | 320 |
| Optimize sample | 3.154 | 121 | 240 |
Can find out that by table 1 Cd content has reduced by 15.17% than the control samples article in the tobacco sample that production obtains under the loose optimization combination of process parameters of microwave, has tangible reduction Cd content effect.
Embodiment 2
To produce the tobacco sample that obtains as control sample by set cigarette technology for making tobacco threds parameter; In the loosening and gaining moisture operation; Press the optimization working process parameter combination adjusting process parameter of vapour, (operating) water nozzle steam pressure 0.3MPa, 70 ℃ of return air temperatures, drum speed 13r/min; All the other procedure technology parameter constants are produced the tobacco sample that obtains and are the optimization sample; The Cd content detection of two samples is seen table 2.
Table 2 loosening and gaining moisture process optimization sample and control sample Cd content detection result
| The sample title | Cd(μg/g) | Vapour, (operating) water nozzle steam pressure (MPa) | Return air temperature (℃) | Drum speed (r/min) |
| Control sample | 3.718 | ?0.2 | 48 | 11 |
| Optimize sample | 3.441 | ?0.3 | 70 | 13 |
Can find out that by table 2 Cd content has reduced by 7.45% than the control samples article in the tobacco sample that production obtains under loosening and gaining moisture optimization combination of process parameters, has tangible reduction Cd content effect.
Embodiment 3
To produce the tobacco sample that obtains as control sample by set cigarette technology for making tobacco threds parameter; In the HT+ drying process; Press the optimization working process parameter combination adjusting process parameter of HT working steam pressure 0.6MPa, 135 ℃ of hot blast temperatures, humidity discharging throttle opening 80%, hot blast throttle opening 30%, drum speed 13r/min; All the other procedure technology parameter constants are produced the tobacco sample that obtains and are the optimization sample; The Cd content detection of two samples is seen table 3.
Table 3HT+ drying process is optimized sample and control sample Cd content detection result
Can find out that by table 3 Cd content has reduced by 3.77% than the control samples article in the tobacco sample that production obtains under HT+ baking silk optimization combination of process parameters, has tangible reduction Cd content effect.
Be sampling method and each the process optimization test data and the testing result of test below:
(1) tobacco-dryer exit sampling: according to testing program, the adjusting process parameter, treat that the baking silk operates steadily after; According to the process time of material in operation; In a baking silk exit (1～2 meter), constant duration sampling 3 times (about 25Kg/inferior), need immediately the leaf silk is divided after naturally cooling to normal temperature on the ground of cleaning after the sampling to mix again; With about the about 40Kg of quartering keeping sample, as a sample A; Repeat above step after 5 minutes and get a parallel samples B again, it is subsequent use to carry out sign.
(2) test data of Cd content is following in each operation:
The loose operation test specimen of table 4 microwave, optimization sample and control sample Cd content detection result
| Sample | Cd(μg/g) | Microwave power (KW) | Process time (second) |
| Control sample | 3.72 | 140 | 320 |
| Test appearance-1 | 3.73 | 180 | 300 |
| Test appearance-2 | 3.85 | 150 | 360 |
| Test appearance-3 | 3.67 | 150 | 240 |
| Optimize sample | 3.15 | 121 | 240 |
Table 5 loosening and gaining moisture operation test specimen, optimization sample and control sample Cd content detection result
| Sample | Cd(μg/g) | Vapour, (operating) water nozzle steam pressure (MPa) | Return air temperature (℃) | Drum speed (r/min) |
| Control sample | 3.72 | 0.2 | 48 | 11 |
| Test appearance-1 | 3.67 | 0.1 | 60 | 11 |
| Test appearance-2 | 3.60 | 0.3 | 50 | 11 |
| Test appearance-3 | 3.70 | 0.2 | 70 | 8 |
| Optimize sample | 3.44 | 0.3 | 70 | 13 |
Table 6HT+ drying process test specimen, optimization sample and control sample Cd content detection result
Explain: control sample is the sample by normal set technological parameter processing, and test specimen is to change the sample of processing behind the machined parameters, and optimizing sample is the sample of processing under the parameters optimization.
The index detected value that the present invention obtains under the optimization combination of process parameters is three explained hereafter products and detects mean value.
(3) tester is:
Icp ms (ICP-MS): VG PQ ExCel l type (U.S. Thermo Electron company);
Microwave digestion system: Multiwave 3000 types are equipped with HP-100 type counteracting tank (Austrian Anton Paar company);
Direct-Q type ultrapure water equipment (U.S. Millipore company);
HNO
3(65%), H
2O
2(30%), is top grade pure (German Merck company);
High-purity argon gas (99.999%, Sichuan Tianyi Science & Technology Co., Ltd);
Electronic balance: Mettler AX 504 types (Switzerland Mettler Toledo Inc.).
(4) icp ms (ICP-MS) assay method sample pre-treatments:
40 mesh sieves are pulverized and crossed to leaf silk sample 40 ℃ of oven dry down, then; Accurately take by weighing the sample 0.3g after sieving, place the interior jar of PFA of micro-wave digestion stove, add the HNO of 6mL 65%
3H with 2mL 30%
2O
2Solution.Digestion procedure: respectively be incubated 5min at 100 ℃, 130 ℃ and 160 ℃, be warmed up to 190 ℃ then and be incubated 10min again; After heating end, treat to take out counteracting tank when temperature is brought down below 60 ℃, then sample is transferred in the 50mL PET sample bottle of weighing in advance, with jar in about 42mL water washing PFA several times, washing lotion also is transferred in the sample bottle, shakes up after weighing.The preparation sample blank uses the same method.
Claims (1)
1. cigarette technological method for processing that reduces content of beary metal Cd; Comprise following operation: microwave is loose, loosening and gaining moisture, blade warming and humidifying, leaves moisting reinforced, storage leaf, chopping, HT+ baking silk, perfuming, storage silk, wraparound; It is characterized in that: the technological parameter of the loose operation of said microwave is: 121 kilowatts of microwave powers, 240 seconds process times; The technological parameter of loosening and gaining moisture operation is: vapour, (operating) water nozzle steam pressure 0.3MPa, 70 ℃ of return air temperatures, drum speed 13r/min; The technological parameter of HT+ drying process is: HT working steam pressure 0.6MPa, 135 ℃ of hot blast temperatures, humidity discharging throttle opening 80%, hot blast throttle opening 30%, drum speed 13r/min; The leaf silk warming and humidifying operation of HT for adopting tunnel type leaf silk warming and humidifying machine to carry out.
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| CN2010102882944A CN101940353B (en) | 2010-09-21 | 2010-09-21 | Method for processing cigarettes with low content of heavy metal Cd |
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| CN2010102882944A CN101940353B (en) | 2010-09-21 | 2010-09-21 | Method for processing cigarettes with low content of heavy metal Cd |
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| CN101940353B true CN101940353B (en) | 2012-09-12 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105361229A (en) * | 2015-12-14 | 2016-03-02 | 贵州中烟工业有限责任公司 | Method for reducing cigarette tar release amount through cylinder wall temperature |
| CN105533788A (en) * | 2015-12-14 | 2016-05-04 | 贵州中烟工业有限责任公司 | Method for decreasing the amount of tar release of cigarette |
| CN105410982A (en) * | 2015-12-14 | 2016-03-23 | 贵州中烟工业有限责任公司 | Method for reducing cigarette tar release amount through opening degree of hot air damper |
| CN105495671A (en) * | 2015-12-14 | 2016-04-20 | 贵州中烟工业有限责任公司 | Method for reducing tar release amount of cigarettes through drum rotation speed |
| CN105495670A (en) * | 2015-12-14 | 2016-04-20 | 贵州中烟工业有限责任公司 | Method for reducing tar release amount of cigarettes through hot-blast temperature |
| CN105361230A (en) * | 2015-12-14 | 2016-03-02 | 贵州中烟工业有限责任公司 | Method for reducing tar release amount of cigarettes by adjusting opening degree of moisture exhaust air door |
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|---|---|---|---|---|
| US4004594A (en) * | 1974-01-19 | 1977-01-25 | Hauni-Werke Korber & Co., Kg | Method and apparatus for conditioning tobacco |
| CN1659985A (en) * | 2004-12-30 | 2005-08-31 | 将军烟草集团有限公司 | Method for threshing ad redrying tobacco by using microwave technology |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4004594A (en) * | 1974-01-19 | 1977-01-25 | Hauni-Werke Korber & Co., Kg | Method and apparatus for conditioning tobacco |
| CN1659985A (en) * | 2004-12-30 | 2005-08-31 | 将军烟草集团有限公司 | Method for threshing ad redrying tobacco by using microwave technology |
Non-Patent Citations (3)
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| 周学政等.膨胀与干燥工序工艺参数对叶丝常规化学成分的影响.《湖北农业科学》.2010,第49卷(第1期),168-170. * |
| 唐士军等.重点工序工艺参数与主流烟气中CO量的关系研究.《郑州轻工业学院学报(自然科学版)》.2010,第25卷(第4期),20-23. * |
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Address after: 610017 Jackie Chan Road, Chengdu economic and Technological Development Zone, Longquanyi District, Sichuan, China, No. 2, No. Applicant after: China Tobacco Chuanyu Industrial Co., Ltd. Address before: 610017 Jackie Chan Road, Chengdu economic and Technological Development Zone, Longquanyi District, Sichuan, China, No. 2, No. Applicant before: China Tobacco Chuanyu Industrial Corporation |
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