CN102599645B - Method for lowering carbon monoxide content in main smoke of cigarette - Google Patents
Method for lowering carbon monoxide content in main smoke of cigarette Download PDFInfo
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- CN102599645B CN102599645B CN 201210039342 CN201210039342A CN102599645B CN 102599645 B CN102599645 B CN 102599645B CN 201210039342 CN201210039342 CN 201210039342 CN 201210039342 A CN201210039342 A CN 201210039342A CN 102599645 B CN102599645 B CN 102599645B
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- flue gas
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Abstract
The invention discloses a method for lowering carbon monoxide content in main smoke of cigarette. The method comprises the steps of: packaging tobacco leaves/cigarette finished product with cartons, wherein the stacking thickness is 26-72cm and the stacking density is 0.20-0.34g/cm<3>; and placing the cigarette cartons on a conveying device with conveying speed of 0.02-0.3m/s and irradiating with electron beam/X ray generated by an electron accelerator, wherein the energy of the electron accelerator is 5-10MeV, the beam current is 0.3-20mA, the beam power is 10-20kW, the maximum scanning width is 100cm, the scanning frequency is 5-15Hz, the irradiation dose is 1-10kGy, the working temperature is set at 5-35 DEG C, the cigarette cartons pass through a scanning window of the electron accelerator twice to undergo irradiation, the distance between the center of the cigarette carton and the scanning window of the electron accelerator is 40-60cm during irradiation, and the ambient humidity is limited to be not more than 60% during working.
Description
Technical field
The invention belongs to the irradiation technique application, also belong to tobacco tar-reducing harm reduction technical field, relate to the application of electron accelerator irradiation technology in reducing tobacco harm, especially a kind of electron accelerator irradiation treatment technology that can reduce carbon monoxide content in the cigarette mainstream flue gas.
Background technology
Tobacco is one of important industrial crops of China, occupies an important position in national economy.At present, there are 1,100,000,000 smokers in the whole world, and in state-owned more than 300,000,000, smoking has become a kind of social group behavior.As far back as the thirties in 20th century just the someone to propose smoking meeting harm healthy, especially nineteen fifty Britain Royal Society of Medicine and U.S. doctor's political affairs general administration in 1964 formally deliver smoking and healthy relation report, it is harmful clearly to have proposed smoking.Along with the pay attention to day by day of people to health, cigarette suck the focus that security has become Recent study, cause showing great attention to of countries in the world government.
Carbon monoxide is a kind of important harmful substance in the cigarette mainstream flue gas, the control composition inventory that is put into 46 kinds of harmful components lists of Canadian government and WHO " tobacco product control research group " suggestion, China national tobacco monopoly bureau also with carbon monoxide as one of 7 kinds of harmful components of evaluating cigarette security.In smoking process, because reactions such as the thermal cracking of tobacco ingredient and burning can generate a large amount of carbon monoxide.Carbon monoxide enters by respiratory tract that very fast meeting and hemoglobin produce very strong affinity behind the alveolar, make hemoglobin form carbonyl haemoglobin, stop the combination of oxygen and hemoglobin, hemoglobin will be hindered to the function of body tissue delivery oxygen, and then influence nervous centralis (brain) and the myocardial function the most responsive to the oxygen supply deficiency, cause histanoxia, thereby make the people produce poisoning symptom.Therefore, carbon monoxide improves the target that the smoking security has become current international consensus and pursuit to the harm of health in the reduction cigarette mainstream flue gas, also is one of great research topic that needs to be resolved hurrily in the current tobacco industry development.
Taking a series of reducing tar and reducing harm measures aspect the cigarette process technology in the world, develop various forms of filter tips, improved the natural permeable degree of cigarette paper, punch dilution, interpolation Chinese herbal medicine and technology (tobacco science and technology such as chemical addition agent, expanded cut tobacco, stem and reconstituted tobacoo, 2000, (8): 3-6).Fully utilize every technology and can regulate the tar content of cigarette, but especially not obviously minimizing of carbon monoxide content of harmful components does not reach the purpose that improves the smoking security.In addition, along with the reduction of tar content, the smoke perfume composition also reduces thereupon, makes the cigarette desalination, also can change cigarette odor-absorbing, causes bad mouthfeel, can not satisfy smoker's requirement.In addition, the method that reduces carbon monoxide content in the flue gas by microwave processing method is arranged also, disclose a kind of cigarette technological method for processing of low CO content as Chinese patent application CN 201010288102.X.This invention is to utilize microwave means by changing the content that the cigarette technology for making tobacco threds reduces carbon monoxide in the cigarette mainstream flue gas, though carbon monoxide content has certain effect in the flue gas to reducing, but microwave equipment costliness, the processing cost height, be difficult for combining with existing tobacco processing technology, be difficult in the suitability for industrialized production and apply.Therefore, these treatment measures do not possess conform with desirable selective, a kind of method that reduces carbon monoxide in the cigarette smoke of necessary exploitation.
Summary of the invention
A kind of method that can reduce carbon monoxide content in the cigarette mainstream flue gas that purpose of the present invention provides at above-mentioned existing in prior technology problem just, after its main feature is the electron beam or x-ray irradiation of tobacco leaf/finished cigarette through the electron accelerator generation, can effectively reduce the carbon monoxide content in the flue gas, improve the security of sucking of cigarette, and energy desinsection, sterilization, and do not influence its sucking quality.
The objective of the invention is to be achieved through the following technical solutions:
The method of carbon monoxide is characterized in that in the minimizing cigarette mainstream flue gas of the present invention, and described method comprises the steps:
A) tobacco leaf/finished cigarette is adopted packed in cases, the ulking thickness of tobacco leaf/finished cigarette in carton is 26～72cm, and bulk density is 0.20～0.34g/cm
3
B) packaged tobacco leaf/finished cigarette is placed on the conveyer, the transporting velocity of described conveyer is 0.02～0.3m/s;
C) place the tobacco leaf/finished cigarette on the conveyer to accept electron beam/x-ray irradiation that electron accelerator produces, the energy of described electron accelerator is 5～10MeV, line is 0.3～20mA, beam power is 10～20kW, maximum sweep width is 100cm, scan frequency is 5～15Hz, irradiation dose is 1～10kGy, described irradiation is taked the mode of secondary irradiation, tobacco leaf/finished cigarette scans window through the conveyer transmission by electron accelerator twice accepts irradiation, once accept the irradiation dose of half, spin upside down smoke box behind the irradiation for the first time, for the second time the ray another side that passes smoke box carries out irradiation, the scanning window 40～60cm of smoke box centre distance electron accelerator during irradiation;
D) in the operating process of step c), the operating temperature of electron accelerator is set in 5～35 ℃ of scopes, and ambient humidity is limited in and is not more than 60%;
Finish above-mentioned steps a)～d) after, tobacco leaf is rolled into cigarette, get some of the cigarette that rolls into or above-mentioned finished cigarettes, according to GB/T 19609-2004 specified standard condition, utilize smoking machine anthropomorphic dummy smoking state, use the GAS ABSORPTION bottle to gather carbon monoxide in the flue gas, adopt non-scattering infrared method to measure the content of carbon monoxide, with correspondence without the cigarette sample of irradiation in contrast.
In the technique scheme disclosed in this invention, improved the method for only simply carrying out irradiation in the prior art by electron accelerator, by to every parameters Optimization in the whole piece irradiation working chain, namely pass through the ulking thickness of tobacco leaf/finished cigarette in carton, bulk density, distance between carton and the electron accelerator scanning window, the transporting velocity of conveyer, and the energy of electron accelerator, line, beam power, maximum sweep width, scan frequency, multinomial parameters Optimization such as irradiation dose has significantly improved and has used electron accelerator irradiation to reduce the effect of carbon monoxide content in the cigarette smoke.
Described cigarette is that finished cigarette or tobacco leaf roll the cigarette that forms behind irradiation.
Described tobacco leaf can be any one of junior tobacco leaf, redried leaf tobacco, airing tobacco.
Described conveyer can be belt, roller rod-type, chain type.
Advantage of the present invention is:
(1) method of carbon monoxide in the minimizing cigarette mainstream flue gas of the present invention, electron beam/x-ray irradiation that the electron accelerator that adopts produces has higher energy, can effectively reduce the carbon monoxide in the flue gas, improve the security of sucking of cigarette, and energy desinsection, sterilization, and do not influence its sucking quality, have practicality;
(2) method of carbon monoxide in the minimizing cigarette mainstream flue gas of the present invention adopts the electron accelerator irradiation technology to belong to emerging radiation processing technology, the irradiation efficiency height, the irradiation good evenness, processing safety is strong, and equipment control is simple, adaptability is strong, and is high in technological content, has novelty;
(3) method of carbon monoxide in the minimizing cigarette mainstream flue gas of the present invention adopts this green new and high technology of electron accelerator irradiation technology, for the tobacco tar-reducing harm reduction opens up a new way, has broad application prospects and great economic implications;
(4) method of carbon monoxide in the minimizing cigarette mainstream flue gas of the present invention, adopt electron accelerator, be easy to combine with existing tobacco processing technology, can be according to present China tobacco processing technology, design and manufacture the electron accelerator that is applied to the special use of tobacco irradiation, electron accelerator is directly installed in the streamline of tobacco processing, one process procedure as in the tobacco leaf processing process is easy to realize industrialization;
(5) method of carbon monoxide in the minimizing cigarette mainstream flue gas of the present invention, safety and sanitation, noresidue, free from environmental pollution;
(6) method of carbon monoxide in the minimizing cigarette mainstream flue gas of the present invention, it is low to consume energy, and can save cost.
The specific embodiment
For a better understanding of the present invention, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention is not limited to the following examples.
Embodiment 1
Get junior tobacco leaf 150kg at random, every 50kg packing one case, totally 3 casees pack for the corrugated case of 70cm * 60cm * 50cm with long * wide * height, and the ulking thickness of tobacco leaf in carton is 26～72cm, and bulk density is 0.20～0.34g/cm
3It is on the conveyer of 0.02～0.3m/s that packaged tobacco leaf is placed transporting velocity; Place the tobacco leaf on the conveyer to accept electron beam/x-ray irradiation that electron accelerator produces, the energy of electron accelerator is 5～10MeV, line is 0.3～20mA, beam power is 10～20kW, maximum sweep width is 100cm, scan frequency is 5～15Hz, irradiation dose is 1kGy, adopt the mode of secondary irradiation, tobacco leaf scans window through the conveyer transmission by electron accelerator twice accepts irradiation, once accepts the irradiation dose of half, spins upside down smoke box behind the irradiation for the first time, for the second time the ray another side that passes smoke box carries out irradiation, the scanning window 40～60cm of smoke box centre distance electron accelerator during irradiation; In the aforesaid operations process, the operating temperature of electron accelerator is set in 5～35 ℃ of scopes, and ambient humidity is limited in and is not more than 60%; After finishing above-mentioned steps, tobacco leaf is rolled into cigarette, get 40 of the cigarette that roll into, according to GB/T 19609-2004 specified standard condition, utilize smoking machine anthropomorphic dummy smoking state, use the carbon monoxide in the GAS ABSORPTION bottle collection flue gas, adopt non-scattering infrared method to measure the content of carbon monoxide, with correspondence without the cigarette sample of irradiation in contrast, and suck evaluation.The results are shown in Table 1.
Carbon monoxide content and variation thereof behind the first flue-cured tobacco predose of table 1
Embodiment 2
Get redried leaf tobacco 3 casees of standard container packing at random, carton length * wide * height is 113.6cm * 72cm * 72.5cm, the heavy 200kg of every case.Adopt the X ray of 5kGy dosage to carry out radiation treatment, tobacco leaf rolls by cigarette machine behind the irradiation, get at random and meet 40 of the cigarette that measure to require, according to GB/T 19609-2004 specified standard condition, utilize smoking machine anthropomorphic dummy smoking state, use the carbon monoxide in the GAS ABSORPTION bottle collection flue gas, adopt non-scattering infrared method to measure the content of carbon monoxide, with correspondence without the cigarette sample of irradiation in contrast, and suck evaluation.The results are shown in Table 2.
Carbon monoxide content and variation thereof behind the table 2 redrying cigarette predose
Embodiment 3
Get finished cigarette 3 casees at random, carton length * wide * height is 47.5cm * 26cm * 59.5cm, the heavy 15kg of every case, 50 of quantity.Adopt the electron beam of 10kGy dosage to carry out radiation treatment, get at random behind the irradiation and meet 40 of the cigarette that measure to require, according to GB/T 19609-2004 specified standard condition, utilize smoking machine anthropomorphic dummy smoking state, use the carbon monoxide in the GAS ABSORPTION bottle collection flue gas, adopt non-scattering infrared method to measure the content of carbon monoxide, with correspondence without the cigarette sample of irradiation in contrast, and suck evaluation.The results are shown in Table 3.
Carbon monoxide content and variation thereof behind the table 3 finished cigarette predose
By table 1～3 as can be known, the method for carbon monoxide content in the reduction cigarette mainstream flue gas of the present invention, electron accelerator irradiation is obvious to the degradation effect of carbon monoxide in the cigarette mainstream flue gas, but does not influence its sucking quality.
Above-described specific embodiment further describes purpose of the present invention, technical scheme and beneficial effect.Institute it should be understood that the above only for specific embodiments of the invention, is not limited to the present invention, and is within the spirit and principles in the present invention all, any modification of making, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a method that reduces carbon monoxide content in the cigarette mainstream flue gas is characterized in that, described method comprises the steps:
A) tobacco leaf/finished cigarette is adopted packed in cases, the ulking thickness of tobacco leaf/finished cigarette in carton is 26 ~ 72cm, and bulk density is 0.20 ~ 0.34 g/cm
3
B) packing is had the carton of tobacco leaf/finished cigarette place on the conveyer, the transporting velocity of described conveyer is 0.02 ~ 0.3m/s;
C) place the tobacco leaf/finished cigarette on the conveyer to accept electron beam/x-ray irradiation that electron accelerator produces,
The energy of described electron accelerator is 5 ~ 10 MeV, and line is 0.3 ~ 20mA, and beam power is 10 ~ 20kW, and maximum sweep width is 100cm, and scan frequency is 5 ~ 15Hz, and irradiation dose is 1 ~ 10 kGy,
Described irradiation is taked the mode of secondary irradiation, tobacco leaf/finished cigarette scans window through the conveyer transmission by electron accelerator twice accepts irradiation, once accept the irradiation dose of half, spin upside down smoke box behind the irradiation for the first time, for the second time the ray another side that passes smoke box carries out irradiation, the scanning window 40 ~ 60cm of smoke box centre distance electron accelerator during irradiation;
D) in the operating process of step c), the operating temperature of electron accelerator is set in 5 ~ 35 ℃ of scopes, and ambient humidity is limited in and is not more than 60%;
E) finish above-mentioned steps a) ~ d) after, tobacco leaf is rolled into cigarette, get some of the cigarette that rolls into or above-mentioned finished cigarettes, utilize smoking machine anthropomorphic dummy smoking state, use the carbon monoxide in the GAS ABSORPTION bottle collection flue gas, adopt non-scattering infrared method to measure the content of carbon monoxide.
2. the method for carbon monoxide content in the reduction cigarette mainstream flue gas according to claim 1, it is characterized in that, at above-mentioned steps e) in, use the carbon monoxide in the GAS ABSORPTION bottle collection flue gas, adopt non-scattering infrared method to measure the content of carbon monoxide, with correspondence without the cigarette sample of irradiation in contrast, the reduction degree of the content of carbon monoxide in the testing cigarette flue gas.
3. the method for carbon monoxide content in the reduction cigarette mainstream flue gas according to claim 1 is characterized in that, described cigarette is that finished cigarette or tobacco leaf roll the cigarette that forms behind irradiation.
4. the method for carbon monoxide content in the reduction cigarette mainstream flue gas according to claim 1 is characterized in that described tobacco leaf is junior tobacco leaf, redried leaf tobacco or airing tobacco.
5. the method for carbon monoxide content in the reduction cigarette mainstream flue gas according to claim 1 is characterized in that, described conveyer is belt, roller rod-type or chain type.
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| CN1179671C (en) * | 2003-06-13 | 2004-12-15 | 玉溪金灿科技有限公司 | Method of optimizing tobacco leaf as upper tobacco material |
| US8006703B2 (en) * | 2003-10-27 | 2011-08-30 | Philip Morris Usa Inc. | In situ synthesis of composite nanoscale particles |
| CN101233954B (en) * | 2008-02-26 | 2010-12-08 | 川渝中烟工业公司 | Reprocessing method for executing electromagnetic irradiation to cigarette finished product |
| CN101632490A (en) * | 2009-08-06 | 2010-01-27 | 河南省科学院同位素研究所有限责任公司 | Tobacco leaf and green mould proof method of products thereof |
| CN101961133B (en) * | 2010-09-21 | 2012-08-22 | 川渝中烟工业有限责任公司 | Cigarette processing method capable of lowering carbon monoxide content |
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