阅读说明：本技术 一种烟叶堆垛帐幕通风除湿吸附装置 (Tobacco leaf stack tent ventilation dehumidification adsorption equipment ) 是由 刘小清 于 2020-06-02 设计创作，主要内容包括：本发明公开了一种烟叶堆垛帐幕通风除湿吸附装置,包括烟垛帐幕,烟垛帐幕的一侧通过通风管连接有除湿机,其另一侧连接有排气管,除湿机的一侧通过管道连接有吸附装置,吸附装置包括通过管道依次连接的活性炭吸附装置、分子筛吸附装置和分解池,分解池的一侧连接有位于烟垛帐幕内部的出气管,氨气分解后形成的氮气通过出气管排入烟垛帐幕内用于烟叶的储藏。本发明采用活性炭和分子筛分别吸附烟叶自然醇化生成的二氧化碳和甲醇,缓解了烟叶自然醇化时干物质的损耗过程,降低了甲醇对工作人员身体健康的伤害；采用分解池分解氨气并将氨气分解后生成的氮气排放至烟垛帐幕内,延长烟叶的储藏期,有效减缓了烟叶的衰老,提高烟叶的抗病性和抑菌性。(The invention discloses a tobacco leaf stacking tent ventilation dehumidification adsorption device which comprises a tobacco stack tent, wherein one side of the tobacco stack tent is connected with a dehumidifier through a ventilation pipe, the other side of the tobacco stack tent is connected with an exhaust pipe, one side of the dehumidifier is connected with an adsorption device through a pipeline, the adsorption device comprises an activated carbon adsorption device, a molecular sieve adsorption device and a decomposition pool which are sequentially connected through a pipeline, one side of the decomposition pool is connected with an air outlet pipe positioned in the tobacco stack tent, and nitrogen formed after ammonia decomposition is discharged into the tobacco stack tent through the air outlet pipe and used for storing tobacco leaves. According to the invention, the activated carbon and the molecular sieve are adopted to respectively adsorb carbon dioxide and methanol generated by natural alcoholization of the tobacco leaves, so that the loss process of dry substances during natural alcoholization of the tobacco leaves is relieved, and the harm of the methanol to the health of workers is reduced; the decomposition pool is adopted to decompose ammonia gas, and nitrogen generated after the ammonia gas is decomposed is discharged into the tobacco stack tent, so that the storage period of the tobacco leaves is prolonged, the aging of the tobacco leaves is effectively slowed down, and the disease resistance and the bacterial inhibition of the tobacco leaves are improved.)

1. The utility model provides a tobacco leaf stack account ventilation dehumidification adsorption equipment, includes the cigarette buttress account, one side of cigarette buttress account is connected with the dehumidifier through the ventilation pipe, and its opposite side is connected with the blast pipe, there is adsorption equipment, its characterized in that one side that the ventilation pipe was kept away from to the dehumidifier through the pipe connection: adsorption equipment includes the decomposition pond that is used for adsorbing carbon dioxide's the active carbon adsorption device, is used for adsorbing the molecular sieve adsorption device of methyl alcohol and is used for decomposing the ammonia that connects gradually through the pipeline, one side that the molecular sieve adsorption device was kept away from in the decomposition pond is connected with the outlet duct that is located the cigarette buttress account inside, the nitrogen gas that forms after the ammonia decomposes is discharged into the storage that is used for the tobacco leaf in the cigarette buttress account through the outlet duct.

2. The ventilating, dehumidifying and adsorbing device of the tobacco leaf stacking tent as claimed in claim 1, wherein: the activated carbon adsorption device comprises a first shell and activated carbon filled in the first shell.

3. The ventilating, dehumidifying and adsorbing device of the tobacco leaf stacking tent as claimed in claim 1, wherein: the molecular sieve adsorption device comprises a second shell and an adsorption material filled in the second shell.

4. The ventilating, dehumidifying and adsorbing device of the tobacco leaf stacking tent as claimed in claim 3, wherein: the adsorption material is a waste catalyst of the SPOA-34 molecular sieve.

5. The ventilating, dehumidifying and adsorbing device of the tobacco leaf stacking tent as claimed in claim 1, wherein: and the decomposition tank is filled with a sodium hypochlorite solution.

6. The ventilating, dehumidifying and adsorbing device of the tobacco leaf stacking tent as claimed in claim 1, wherein: the ventilation pipe is further connected with a first pipeline, and the pipeline, connected with the adsorption device, of the dehumidifier is further connected with a second pipeline.

7. The ventilating, dehumidifying and adsorbing device of the tobacco leaf stacking tent as claimed in claim 6, wherein: and a first valve, a second valve, a third valve, a fourth valve and a fifth valve are respectively arranged on the ventilation pipe, the first pipeline, the pipeline connected between the dehumidifier and the adsorption device, the second pipeline and the exhaust pipe.

8. The ventilating, dehumidifying and adsorbing device of the tobacco leaf stacking tent as claimed in claim 6, wherein: and the second pipeline is connected with an exhaust fan.

9. The ventilating, dehumidifying and adsorbing device of the tobacco leaf stacking tent as claimed in claim 1, wherein: the tobacco stack tent is connected with an air inlet pipe in the Shanghai mode, and one end, far away from the tobacco stack tent, of the air inlet pipe is connected with a hydrogen cyanide storage tank.

10. The ventilating, dehumidifying and adsorbing device of the tobacco leaf stacking tent as claimed in claim 9, wherein: and a sixth valve is arranged on the air inlet pipe.

Technical Field

The invention relates to the technical field of tobacco processing equipment, in particular to a ventilation, dehumidification and adsorption device for a tobacco leaf stacking tent.

Background

The quality of the tobacco mainly comprises four parts of appearance quality, physical characteristics, chemical components and sensory quality of the tobacco, and reflects the processing quality characteristics of the tobacco from different aspects. The appearance quality is an important basis for tobacco leaf grading, the physical characteristics can reflect the quality of tobacco leaves, the processing resistance and the economic character of the tobacco leaves, and the chemical components and the sensory quality mainly reflect the internal quality of the tobacco leaves.

In order to improve the appearance quality, physical characteristics, chemical components and sensory quality of tobacco leaves, the tobacco leaves are stacked and placed in a tent for storage for 2-3 years before being used for production and processing, the tobacco leaves are remarkably improved in aspects of color, aroma, taste and the like after being stored, and the improvement and change of the quality of the stored tobacco leaves are called natural alcoholization. That is, the process of storing the tobacco leaves under suitable environmental conditions is the natural alcoholization process of the tobacco leaves. The natural alcoholization of the tobacco leaves has an important influence on the subsequent processing quality of the tobacco leaves.

The tobacco leaves consume oxygen, part of protein and amino acid are deaminated in the natural alcoholization process to release ammonia gas, and the ammonia gas has pungent smell and has adverse effects on the nervous system and the respiratory system of a human body; and the 'influence of exogenous ammonia gas on cytology and physiology of Alternaria alternata staining tobacco leaves' published by Dingyanfang indicates that the ammonia gas can promote Alternaria alternata staining tobacco leaves, accelerate the aging of the tobacco leaves, reduce the disease resistance and bacterial inhibition of the tobacco leaves, accelerate the aging and the step of cells and aggravate the staining pace of pathogenic bacteria on host tobacco leaves.

The pectin in tobacco leaf mainly comprises lactose, arabinose, polysaccharide, methyl ester saccharic acid, etc., and exists in free form and calcium salt form. The pectin has reducibility and can be further decomposed. Tobacco leaves contain considerable amounts of pectin, especially in the upper tobacco leaves. During the mellowing of tobacco leaves, pectin is hydrolyzed by acids, alkalis or enzymes, releasing methanol which escapes into the tent. Methanol is a highly toxic substance, has the greatest influence on the nervous system and the blood system of a human body, generates toxic reaction when being taken through the digestive tract, the respiratory tract or the skin, can damage the respiratory mucosa and the vision of a human, and causes an acute poisoning phenomenon.

The natural alcoholization process of the tobacco leaves also includes the fermentation process of the tobacco leaves, which is mainly that some organic acids are oxidized to release CO₂Oxidation reaction process with heat, etc., when CO is in tobacco tent₂The higher the concentration of (A), the greater the degree of anaerobic respiration occurring in the tobacco leaves, resulting in the more loss of dry matter in the tobacco leaves and the resulting decrease in the quality of the tobacco leaves.

In view of the foregoing, it would be desirable to provide a method for removing harmful components (such as ammonia, methanol and CO) generated during natural alcoholization of tobacco leaves₂) The device can improve the quality of the natural alcoholization of the tobacco leaves and reduce the damage of harmful components to the tobacco leaves and the influence on the health of human bodies.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, the ventilation and dehumidification adsorption device of the tobacco stacking tent with the ventilation, dehumidification and adsorption functions is simple in structure, harmful ingredients generated due to natural alcoholization of tobacco leaves in the tobacco stacking tent can be removed, and the natural alcoholization quality of the tobacco leaves is improved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a tobacco leaf stack account ventilation dehumidification adsorption equipment, includes the cigarette buttress account, one side of cigarette buttress account is connected with the dehumidifier through the ventilation pipe, and its opposite side is connected with the blast pipe, one side that the ventilation pipe was kept away from to the dehumidifier has adsorption equipment through the pipe connection, adsorption equipment includes the activated carbon adsorption equipment who is used for adsorbing carbon dioxide, is used for adsorbing the molecular sieve adsorption equipment of methyl alcohol and the decomposition pond that is used for decomposing the ammonia that connects gradually through the pipeline, one side that molecular sieve adsorption equipment was kept away from in the decomposition pond is connected with the outlet duct that is located the inside of cigarette buttress account, the nitrogen gas that forms after the ammonia decomposition is discharged into the storage that is used for the tobacco leaf in the cigarette buttress account through the outlet duct.

Further, the activated carbon adsorption device comprises a first shell and activated carbon filled in the first shell.

Further, the molecular sieve adsorption device comprises a second shell and an adsorption material filled in the second shell.

Further, the adsorption material is an SPOA-34 molecular sieve waste catalyst.

Further, the decomposition tank is filled with a sodium hypochlorite solution.

Furthermore, a first pipeline is connected to the ventilation pipe, and a second pipeline is connected to a pipeline connecting the dehumidifier and the adsorption device.

Furthermore, a first valve, a second valve, a third valve, a fourth valve and a fifth valve are respectively arranged on the ventilation pipe, the first pipeline, the pipeline connected between the dehumidifier and the adsorption device, the second pipeline and the exhaust pipe.

Further, an exhaust fan is connected to the second pipeline.

Further, the tobacco stack tent is connected with an air inlet pipe in the Shanghai, and one end, far away from the tobacco stack tent, of the air inlet pipe is connected with a hydrogen cyanide storage tank.

Further, a sixth valve is installed on the air inlet pipe.

The ventilation, dehumidification and adsorption device for the tobacco leaf stacking tent has the beneficial effects that:

(1) the invention has simple structure and convenient use, can carry out dehumidification or dehumidification adsorption or ventilation dehumidification operation on the tobacco stack curtain by adopting valve control, has the functions of ventilation, dehumidification and adsorption, provides better alcoholization conditions for the tobacco leaves when naturally alcoholizing in the tobacco stack curtain, and ensures the smooth operation of alcoholizing the tobacco leaves;

(2) according to the invention, the active carbon adsorption device is arranged, and carbon dioxide and formaldehyde generated by natural alcoholization of the tobacco leaves are adsorbed by the active carbon, so that the loss process of dry matters during natural alcoholization of the tobacco leaves is relieved;

(3) the molecular sieve adsorption device is arranged, and the molecular sieve is adopted to adsorb methanol generated by natural alcoholization of the tobacco leaves, so that the harm of the methanol to the health of workers is reduced;

(4) according to the invention, the decomposition pool is arranged, ammonia gas is decomposed by the decomposition pool, nitrogen generated after the ammonia gas is decomposed is discharged into the tobacco stack tent, and the nitrogen is applied to change the gas atmosphere in the tobacco stack tent, so that the storage period of tobacco leaves is prolonged, the aging of the tobacco leaves is effectively slowed down, the disease resistance and the antibacterial property of the tobacco leaves are improved, and the impregnation of pathogenic bacteria to the tobacco leaves is inhibited.

Drawings

FIG. 1 is a schematic structural view of a ventilating, dehumidifying and adsorbing device of a tobacco leaf stacking tent in example 1;

fig. 2 is a schematic structural diagram of a ventilation, dehumidification and adsorption device of a tobacco leaf stacking tent in embodiment 2.

The above reference numerals: 1-a smoke stack tent, 2-a ventilation pipe, 3-a dehumidifier, 4-an exhaust pipe, 5-an adsorption device, 51-an activated carbon adsorption device, 52-a molecular sieve adsorption device, 53-a decomposition tank, 54-activated carbon, 55-SPOA-34 molecular sieve waste catalyst, 56-a first filter screen, 57-a second filter screen, 58-a drying agent, 6-a first pipeline, 7-a second pipeline, 8-an exhaust fan, 9-a first valve, 10-a second valve, 11-a third valve, 12-a fourth valve, 13-a fifth valve, 14-an air inlet pipe and 15-a sixth valve.

Detailed Description

The invention is further illustrated with reference to the following figures and examples, which are not intended to limit the scope of the invention in any way.

Example 1

The utility model provides a tobacco leaf stack account ventilation dehumidification adsorption equipment 5, includes cigarette buttress account 1, and the tobacco leaf of stack has been deposited in cigarette buttress account 1, one side of cigarette buttress account 1 is connected with dehumidifier 3 through ventilation pipe 2, and its opposite side (this opposite side means the one side of mutually opposing with ventilation pipe 2 on the cigarette buttress account 1) is connected with blast pipe 4, dehumidifier 3 can be from electrified source or be connected with external power source, the comdenstion water accessible pipeline that dehumidifier 3 produced discharges to cigarette buttress account 1 outside or collects in the container of cigarette buttress account 1 in and take out regularly, there is adsorption equipment 5 one side of ventilation pipe 2 through the pipe connection in dehumidifier 3.

The ventilating pipe 2 is further connected with a first pipeline 6, a second pipeline 7 is further connected to a pipeline connecting the dehumidifier 3 and the adsorption device 5, and an exhaust fan 8 is connected to the second pipeline 7.

And a first valve 9, a second valve 10, a third valve 11, a fourth valve 12 and a fifth valve 13 are respectively arranged on the ventilation pipe 2, the first pipeline 6, a pipeline connected between the dehumidifier 3 and the adsorption device 5, the second pipeline 7 and the exhaust pipe 4.

Adsorption equipment 5 includes the activated carbon adsorption device 51 that is used for adsorbing carbon dioxide, is used for adsorbing the molecular sieve adsorption device 52 of methyl alcohol and the decomposition pond 53 that is used for decomposing the ammonia that connect gradually through the pipeline, one side that molecular sieve adsorption device 52 was kept away from to decomposition pond 53 is connected with the outlet duct that is located the internal portion of cigarette buttress account 1, the nitrogen gas that forms after the ammonia decomposes is discharged into the storage that is used for the tobacco leaf in the cigarette buttress account 1 through the outlet duct.

The activated carbon adsorption device 51 comprises a first shell and activated carbon 54 filled in the first shell, and the molecular sieve adsorption device 52 comprises a second shell and an adsorption material filled in the second shell, wherein the adsorption material is a waste catalyst 55 of the SPOA-34 molecular sieve. The decomposition tank 53 is filled with a sodium hypochlorite solution.

Install first filter screen 56 and second filter screen 57 in the pipeline of outlet duct, placed drier 58 between first filter screen 56 and second filter screen 57, adopt drier 58 to carry out drying process to the nitrogen gas that generates after decomposing through decomposition tank 53, avoid nitrogen gas to bring steam into the humidity increase in the curtain that leads to in the curtain, prevented the long moldy phenomenon of tobacco leaf.

The invention adopts the activated carbon 54 to absorb the carbon dioxide and formaldehyde generated by the natural alcoholization of the tobacco leaves, reduces the concentration of the carbon dioxide in the tobacco stack curtain 1, relieves the loss of dry matters caused by the anaerobic respiration of the tobacco leaves, and improves the quality of the natural alcoholization of the tobacco leaves.

The methanol generated by natural alcoholization of the tobacco leaves is absorbed by the waste catalyst 55 of the SPOA-34 molecular sieve, so that the content of the methanol in the tobacco stack curtain 1 is reduced, and the harm of the methanol in the tobacco stack curtain 1 to workers is reduced. The waste catalyst 55 of the SPOA-34 molecular sieve in the invention can adopt the waste catalyst 55 of the SPOA-34 molecular sieve published in the patent application number CN201410575041.3, and the composition components are not described in detail.

The sodium hypochlorite in the decomposition tank 53 is adopted to decompose ammonia gas generated by natural alcoholization of the tobacco leaves, and the reaction decomposition mechanism is as follows:

2NH₃+NaCl=NaCl+N₂H₄+H₂O；2NaClO+N₂H₄=2NaCl+2H₂O+N₂。

conveying the gas treated by the activated carbon adsorption device 51 and the molecular sieve adsorption device 52 to a decomposition pool 53 filled with a sodium hypochlorite solution, reacting ammonia in the gas with an excessive sodium hypochlorite solution to finally generate nitrogen, discharging the nitrogen into the tobacco stack curtain 1 from an air outlet pipe, changing the gas atmosphere in the tobacco stack curtain 1 by using the nitrogen generated by decomposing the ammonia, storing the tobacco leaves by using the ammonia, wherein the ammonia is inert gas and does not react with any chemical component in the tobacco leaves, the content of oxygen in the tobacco stack curtain 1 can be effectively reduced, aerobic respiration of the tobacco leaves is inhibited, the phenomenon of mildewing of the tobacco leaves due to the worms is effectively inhibited, and the storage period of the tobacco leaves is prolonged; and the content of ammonia gas in the tobacco stack curtain 1 is reduced, so that the aging of tobacco leaves is effectively slowed down, the disease resistance and the bacteriostatic property of the tobacco leaves are improved, and the impregnation of pathogenic bacteria to the tobacco leaves is inhibited.

The working principle and the using method of the invention are as follows: the ventilation dehumidification adsorption device 5 can perform dehumidification, ventilation dehumidification, adsorption and dehumidification adsorption operations, and the specific operation process comprises the following steps:

(1) when needs dehumidify the cigarette buttress account 1, when humidity in the cigarette buttress account 1 is higher than 65%, open dehumidifier 3 and dehumidify the operation in the cigarette buttress, concrete step is: closing the first valve 9, the third valve 11 and the fifth valve 13, opening the second valve 10 and the fourth valve 12, conveying the gas in the cigarette stack curtain 1 to the dehumidifier 3 through the first pipeline 6 for dehumidification, and then outputting the gas to the cigarette stack curtain 1 from the second pipeline 7 to complete the operation of dehumidifying the cigarette stack curtain 1;

(2) when the ventilation and dehumidification operation of the cigarette stack tent 1 is needed, the second valve 10 and the fourth valve 12 are closed, the first valve 9, the third valve 11 and the fifth valve 13 are opened, air outside the cigarette stack tent 1 is conveyed into the dehumidifier 3 through the ventilation pipe 2 for dehumidification, and the dehumidified air is conveyed into the adsorption device 5 through a pipeline to be adsorbed and then discharged into the cigarette stack tent 1, so that the ventilation and dehumidification operation of the cigarette stack tent 1 is completed;

(3) when the harmful gas in the cigarette stack curtain 1 needs to be removed to realize the adsorption operation, the first valve 9, the second valve 10 and the fifth valve 13 are closed, the third valve 11 and the fourth valve 12 are opened, the gas in the cigarette stack curtain 1 is conveyed into the adsorption device 5 through the second pipeline 7, carbon dioxide, formaldehyde, methanol and ammonia gas in the gas are removed sequentially through the activated carbon adsorption device 51, the molecular sieve adsorption device 525 and the decomposition pool 53, and the nitrogen gas generated after the ammonia gas is decomposed is conveyed into the cigarette stack curtain 1 through the gas outlet pipe, so that the adsorption operation of the cigarette stack curtain 1 is completed;

(4) when needing to dehumidify and adsorb in the cigarette buttress account 1, close first valve 9, fourth valve 12 and fifth valve 13, open second valve 10 and third valve 11, carry out the dehumidification in first pipeline 6 carries the gas in the cigarette buttress account 1 to dehumidifier 3 earlier, discharge in cigarette buttress account 1 after carrying out wife in adsorbing device 5 through the pipeline after the rethread will dehumidify, accomplish cigarette buttress account 1 and carry out the operation that the dehumidification was adsorbed.

Example 2

The utility model provides a tobacco leaf stack account ventilation dehumidification adsorption equipment 5, includes cigarette buttress account 1, and the tobacco leaf of stack has been deposited in cigarette buttress account 1, one side of cigarette buttress account 1 is connected with dehumidifier 3 through ventilation pipe 2, and its opposite side (this opposite side means the one side of mutually opposing with ventilation pipe 2 on the cigarette buttress account 1) is connected with blast pipe 4, dehumidifier 3 can be from electrified source or be connected with external power source, the comdenstion water accessible pipeline that dehumidifier 3 produced discharges to cigarette buttress account 1 outside or collects in the container of cigarette buttress account 1 in and take out regularly, there is adsorption equipment 5 one side of ventilation pipe 2 through the pipe connection in dehumidifier 3.

The ventilating pipe 2 is further connected with a first pipeline 6, a second pipeline 7 is further connected to a pipeline connecting the dehumidifier 3 and the adsorption device 5, and an exhaust fan 8 is connected to the second pipeline 7.

And a first valve 9, a second valve 10, a third valve 11, a fourth valve 12 and a fifth valve 13 are respectively arranged on the ventilation pipe 2, the first pipeline 6, a pipeline connected between the dehumidifier 3 and the adsorption device 5, the second pipeline 7 and the exhaust pipe 4.

The tobacco stack tent 1 is connected with an air inlet pipe 14 in the Shanghai, one end of the air inlet pipe 14 far away from the tobacco stack tent 1 is connected with a hydrogen cyanide storage tank. A sixth valve 15 is mounted on the intake pipe 14.

Adsorption equipment 5 includes the activated carbon adsorption device 51 that is used for adsorbing carbon dioxide, is used for adsorbing the molecular sieve adsorption device 52 of methyl alcohol and the decomposition pond 53 that is used for decomposing the ammonia that connect gradually through the pipeline, one side that molecular sieve adsorption device 52 was kept away from to decomposition pond 53 is connected with the outlet duct that is located the internal portion of cigarette buttress account 1, the nitrogen gas that forms after the ammonia decomposes is discharged into the storage that is used for the tobacco leaf in the cigarette buttress account 1 through the outlet duct.

Install first filter screen 56 and second filter screen 57 in the pipeline of outlet duct, placed drier 58 between first filter screen 56 and second filter screen 57, adopt drier 58 to carry out drying process to the nitrogen gas that generates after decomposing through decomposition tank 53, avoid nitrogen gas to bring steam into the humidity increase in the curtain that leads to in the curtain, prevented the long moldy phenomenon of tobacco leaf. The desiccant 58 in the present invention is only required to be a desiccant 58 having a drying and water absorbing function in the prior art, such as a preparation method of a bentonite desiccant 58 disclosed in patent application No. CN201510525233.8 and a desiccant 58 for tobacco industry disclosed in CN201520598875.6, and the components of the desiccant 58 are not described in detail.

The activated carbon adsorption device 51 comprises a first shell and activated carbon 54 filled in the first shell, and the molecular sieve adsorption device 52 comprises a second shell and an adsorption material filled in the second shell, wherein the adsorption material is a waste catalyst 55 of the SPOA-34 molecular sieve. The decomposition tank 53 is filled with a sodium hypochlorite solution.

The invention adopts the activated carbon 54 to absorb the carbon dioxide and formaldehyde generated by the natural alcoholization of the tobacco leaves, reduces the concentration of the carbon dioxide in the tobacco stack curtain 1, relieves the loss of dry matters caused by the anaerobic respiration of the tobacco leaves, and improves the quality of the natural alcoholization of the tobacco leaves.

The methanol generated by natural alcoholization of the tobacco leaves is absorbed by the waste catalyst 55 of the SPOA-34 molecular sieve, so that the content of the methanol in the tobacco stack curtain 1 is reduced, and the harm of the methanol in the tobacco stack curtain 1 to workers is reduced. The waste catalyst 55 of the SPOA-34 molecular sieve in the invention can adopt the waste catalyst 55 of the SPOA-34 molecular sieve published in the patent application number CN201410575041.3, and the composition components are not described in detail.

The sodium hypochlorite in the decomposition tank 53 is adopted to decompose ammonia gas generated by natural alcoholization of the tobacco leaves, and the reaction decomposition mechanism is as follows:

2NH₃+NaCl=NaCl+N₂H₄+H₂O；2NaClO+N₂H₄=2NaCl+2H₂O+N₂。

conveying the gas treated by the activated carbon adsorption device 51 and the molecular sieve adsorption device 52 to a decomposition pool 53 filled with a sodium hypochlorite solution, reacting ammonia in the gas with an excessive sodium hypochlorite solution to finally generate nitrogen, discharging the nitrogen into the tobacco stack curtain 1 from an air outlet pipe, changing the gas atmosphere in the tobacco stack curtain 1 by using the nitrogen generated by decomposing the ammonia, storing the tobacco leaves by using the ammonia, wherein the ammonia is inert gas and does not react with any chemical component in the tobacco leaves, the content of oxygen in the tobacco stack curtain 1 can be effectively reduced, aerobic respiration of the tobacco leaves is inhibited, the phenomenon of mildewing of the tobacco leaves due to the worms is effectively inhibited, and the storage period of the tobacco leaves is prolonged; and the content of ammonia gas in the tobacco stack curtain 1 is reduced, so that the aging of tobacco leaves is effectively slowed down, the disease resistance and the bacteriostatic property of the tobacco leaves are improved, and the impregnation of pathogenic bacteria to the tobacco leaves is inhibited.

When the pest and disease damage prevention is needed to be carried out in the tobacco stack tent 1, the operation steps of fumigation are as follows: closing the first valve 9, the second valve 10, the third valve 11, the fourth valve 12 and the fifth valve 13, opening the sixth valve 15, conveying phosphine into the account through the air inlet pipe 14, wherein the volume concentration of the phosphine is 30-700ppm, maintaining the airtight state of the tobacco stack account 1 for more than 4 days, and adopting the phosphine to kill pests in tobacco leaves and inhibit the growth and reproduction of the pests.

When dehumidification adsorption is needed after fumigation and insect killing, the specific operation of the dehumidification adsorption is as follows: the first valve 9, the fourth valve 12 and the fifth valve 13 are closed, the second valve 10 and the third valve 11 are opened, the gas in the cigarette stack curtain 1 is firstly conveyed into the dehumidifier 3 for dehumidification through the first pipeline 6, and then the dehumidified gas is conveyed into the adsorption device 5 for adsorption and then is discharged into the cigarette stack curtain 1 through the pipeline, so that the operation of dehumidifying and adsorbing the cigarette stack curtain 1 is completed.

It will be further understood that the terms "first," "second," and the like, are used herein to describe various elements, but these elements should not be limited by these terms. These terms are only used to distinguish one element from another.

As used herein, the terms "upper," "lower," "left," "right," and the like are used for convenience of description based on the orientation as shown in the figures of the drawings, which may vary from one actual device to another depending on the manner in which the device is arranged.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.