CN101991181B - Prevention and treatment method for reducing SO2 toxic hazard during dense tobacco leaf baking - Google Patents
Prevention and treatment method for reducing SO2 toxic hazard during dense tobacco leaf baking Download PDFInfo
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- CN101991181B CN101991181B CN 201010569630 CN201010569630A CN101991181B CN 101991181 B CN101991181 B CN 101991181B CN 201010569630 CN201010569630 CN 201010569630 CN 201010569630 A CN201010569630 A CN 201010569630A CN 101991181 B CN101991181 B CN 101991181B
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Abstract
The invention relates to a prevention and treatment method for reducing SO2 toxic hazard during dense tobacco leaf baking, and belongs to the technical field of flue-cured tobacco modulation. The prevention and treatment method is characterized in that: a, a furnace roof and a furnace body of a heat supply device are welded and sealed at one time; a convex concave part of an ash removal port is kept flat, and the four corners of the convex concave part are kept horizontal and sealed with asbestos ropes; and sealing inspection is performed after each ash removal process is finished; b, the distance between a coal charging port and an air inlet of a ventilation and dehumidification system and the distance between an ash hole and the air inlet of the ventilation and dehumidification system are 2.5 to 3.0m respectively; c, fresh tobacco leaves are air-dried and packaged without attached water; and the relative humidity of the air is controlled to be 90 to 10 percent during an entire tobacco leaf baking process; and d, the tobacco packaging density is controlled to be 35 to 45kg/m<3>. Compared with the prior art, the method has the characteristics of low reconstruction cost, capability of obviously reducing SO2 toxic hazard symptom and is easy to learn, understand and master, and is suitable for dense tobacco leaf baking under the different ecological environmental conditions of Chinese tobacco planting areas.
Description
Technical field:
The present invention relates to SO in the tobacco leaf condensed bake process of a kind of reduction
2The method of preventing and treating of poisoning belongs to tobacco modulation technique field.
Background technology:
China's intensive baking room has been applied 510,000 at present.Baking facts have proved that intensive baking room has characteristics such as the baking ability is big, easy and simple to handle, tobacco rate height, receives extensively affirming and approval of cigarette district cadre, the masses, is the revolution property change of Chinese roasting plant.
Yet intensive baking room has changed the dress cigarette mode of conventional general barn, and smoke filling density significantly increases.Smoke filling density 20～the 25kg/m of traditional flue-curing barn
3, the smoke filling density of intensive baking room is usually at 40～50kg/m
3Smoke filling density is big, and the space between the tobacco leaf is little, air starvation, and " ponding " phenomenon is commonplace; Having influenced the normal ventilation dewetting of tobacco leaf, also is the SO in the cigarette-filling house
2Water-soluble, form H
2SO
3Solution produces murder by poisoning to tobacco leaf, has created condition.
Up to now, expert both domestic and external, scholar are with regard to H
2SO
3Solution has carried out big quantity research to the influence of plant leaf blade, and the result shows: 1. H
2SO
3Solution is coerced plant leaf blade and is produced between the threshold values pH 3.0～PH3.5 that injures; 2. H
2SO
3Solution forces the damage of plant leaf blade eucaryotic cell structure, and pore is open lastingly, and pathogen and other pollutant are got into, and moisture loss increases, and greatly reduces plant resistance to environment stress; 3. H
2SO
3Solution causes the plant leaf blade membrane permeability to increase, and the film protective enzyme is active to descend, and vegetable active oxygen metabolism balance is broken, film fat peroxidating aggravation, and membrane structure is destroyed, and has influence on photosynthetic, breathing of plant and normally carrying out of nitrogen metabolism and mineral nutrition metabolism.
The SO of intensive baking room
2Mainly come from the heat supply chamber, in the coal S in combustion process with O
2In conjunction with, generate SO
2SO
2Water-soluble generation H
2SO
3Solution.
Reaction equation is following:
S+O
2→SO
2 SO
2+H
2O←→H
2SO
3
In the intensive bake process, tobacco leaf is by H
2SO
3Solution is poisoned, and tobacco leaf surface produces green water stain shape piebald, and existing more illustration causes between the tobacco flue-curing loss 5%～8%; Research reduces SO in the tobacco leaf condensed bake process
2The method of preventing and treating of poisoning, it is extremely important just to seem.
The present invention is from minimizing or stop SO
2The source changes H
2SO
3The generation condition start with, through a large amount of tobacco flue-curing practice and tobacco flue-curing physiological and biochemical research, conclude to sum up and reduce SO in the tobacco leaf condensed bake process
2The method of preventing and treating of poisoning; Through the document retrieval, do not see the public reported identical both at home and abroad with the present invention.
Summary of the invention:
The objective of the invention is to overcome the deficiency of the intensive baking modulation technique of existing flue-cured tobacco, SO in the tobacco leaf condensed bake process of a kind of reduction is provided
2The method of preventing and treating of poisoning.
Scientific basis of the present invention is:
1. the SO of heat supply chamber
2The smoke spillage that mainly comes from heating plant.Coal burns in burner hearth, the SO of generation
2, since heating plant furnace roof and shaft interface, cleaning door, blow-by, and smoke spillage causes 5O
2Get into the heat supply chamber, flowing into cigarette-filling house.The sealing heating plant is minimizing or stop tobacco leaf SO
2The fundamental way of poisoning.
2. the flue gas in the stove after coal filling hole, grey hole leak, through short-range air approach, ventilation dewetting system air inlet, gets into the heat supply chamber, flows into cigarette-filling house, poisons tobacco leaf.Stove coal filling hole, grey hole and ventilation dewetting system air inlet keep more remote, can effectively reduce the air inlet SO of ventilation dewetting system
2Soakage.
3. tobacco leaf surface produces " attached water ", is SO
2Water-soluble generation H
2SO
3Solution is poisoned, and condition is provided.In the tobacco flue-curing process, minimizing tobacco leaf surface generation " attached water " is reduction or stop tobacco leaf SO
2The important measures of poisoning.
4. it is too close to adorn cigarette, around the tobacco leaf space seldom, ventilation dewetting is not smooth, is easy to generate ponding, SO
2Water-soluble generation H
2SO
3Solution is poisoned.Suitable smoke filling density: 35～45kg/m
3
The present invention reduces SO in the tobacco leaf condensed bake process
2The method of preventing and treating of poisoning is that particular content is following to the improvement and the innovation of the intensive baking technology of existing flue-cured tobacco:
A. the furnace roof of heating plant and shaft are welded to each other, disposable sealing; It is smooth that the cleaning door convexconcave part keeps, and four jiaos keep level, seal with asbestos cord; Each deashing finishes, and does leakage check;
B. the distance of coal filling hole, grey hole and ventilation dewetting system air inlet is 2.5～3.0m;
C. fresh tobacco leaf dries and is not with " attached water " dress cigarette; The tobacco flue-curing overall process, relative air humidity is controlled at 90%～10%;
D. smoke filling density is controlled at 35～45kg/m
3
Other baking operating technology of the present invention is identical with conventional baking.
The present invention compared with prior art, it is low to have an improvement cost, can significantly reduce SO
2Poisoning symptom is prone to, understandable, wield characteristics; Be applicable to the tobacco leaf condensed baking under the domestic cigarettes district different ecological environmental condition.
The specific embodiment:
The method of preventing and treating of the present invention is carried out in the air-flow ascending manner of routine or air-flow descending manner intensive baking room.
The present invention reduces SO in the tobacco leaf condensed bake process
2The method of preventing and treating of poisoning is that reforming content is following to the improvement and the innovation of the intensive baking technology of existing flue-cured tobacco:
A. the furnace roof of heating plant and shaft weld relatively, disposable sealing; It is smooth that the cleaning door convexconcave part keeps, and four jiaos keep level, seal with asbestos cord; Each deashing finishes, and does leakage check;
B. the distance of coal filling hole, grey hole and ventilation dewetting system air inlet is 2.5m or 2.8m or 3.0m;
C. fresh tobacco leaf dries and is not with " attached water " dress cigarette; Tobacco flue-curing overall process, relative air humidity are controlled to be 90% or 50% or 10%;
D. smoke filling density is controlled at 35kg/m
3Or 40kg/m
3Or 45kg/m
3
Other operating technology of the present invention is identical with conventional baking.
The inventor uses the above-mentioned method of preventing and treating in the tobacco flue-curing process of the air-flow ascending manner of Yunnan Province's Yuxi, Puer City, Yunnan Province, Lincang City, Yunnan Province or air-flow descending manner intensive baking room; The baking result: tobacco leaf color is golden yellow, orange; Oil content is more, does not have SO
2Poisoning symptom occurs; Better-than-average tobacco leaf ratio 94%; The expert is to the smoking result of tobacco leaf: fragrance matter is purer, and perfume quantity is more sufficient, and flue gas concentration is comparatively full, abundant, and excitant is less, and strength is moderate, and assorted gas is lighter, and mouthfeel is fair, and use value is higher.
Claims (1)
1. one kind is reduced SO in the tobacco leaf condensed bake process
2The method of preventing and treating of poisoning is characterized in that:
A. the furnace roof of heating plant and shaft weld relatively, disposable sealing; It is smooth that the cleaning door convexconcave part keeps, and four jiaos keep level, seal with asbestos cord; Each deashing finishes, and does leakage check;
B. the distance of coal filling hole, grey hole and ventilation dewetting system air inlet is 2.5～3.0m;
C. fresh tobacco leaf dries and is not with " attached water " dress cigarette; The tobacco flue-curing overall process, relative air humidity is controlled at 90%～10%;
D. smoke filling density is controlled at 35～45kg/m
3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010569630 CN101991181B (en) | 2010-12-02 | 2010-12-02 | Prevention and treatment method for reducing SO2 toxic hazard during dense tobacco leaf baking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010569630 CN101991181B (en) | 2010-12-02 | 2010-12-02 | Prevention and treatment method for reducing SO2 toxic hazard during dense tobacco leaf baking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101991181A CN101991181A (en) | 2011-03-30 |
| CN101991181B true CN101991181B (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010569630 Active CN101991181B (en) | 2010-12-02 | 2010-12-02 | Prevention and treatment method for reducing SO2 toxic hazard during dense tobacco leaf baking |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008081341A8 (en) * | 2006-12-28 | 2008-09-25 | Philip Morris Prod | Sterilized moist snuff and method |
| CN101507527A (en) * | 2008-12-30 | 2009-08-19 | 华中科技大学 | High-efficiency heat exchanger for roasting tobacco leaf |
| CN101601501A (en) * | 2009-06-30 | 2009-12-16 | 中国烟草总公司福建省公司 | Integral structure of heat supply device of bulk curer |
-
2010
- 2010-12-02 CN CN 201010569630 patent/CN101991181B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008081341A8 (en) * | 2006-12-28 | 2008-09-25 | Philip Morris Prod | Sterilized moist snuff and method |
| CN101507527A (en) * | 2008-12-30 | 2009-08-19 | 华中科技大学 | High-efficiency heat exchanger for roasting tobacco leaf |
| CN101601501A (en) * | 2009-06-30 | 2009-12-16 | 中国烟草总公司福建省公司 | Integral structure of heat supply device of bulk curer |
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| Publication number | Publication date |
|---|---|
| CN101991181A (en) | 2011-03-30 |
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