A mechanically regulated, green and environmentally friendly storage method for sheet tobacco

Abstract

The invention relates to a mechanical control and environmental-protection method for storing tobacco flakes, which is characterized by comprising the following steps: 1. constructing a tobacco leaf pile sealing space which is sealed in six surfaces and is capable of mechanically controlling a storage environment; 2. carrying out one-time thorough gas fumigation control: adopting any one or the combination of more than one of the following four methods to realize the fumigation control on insect and mildew damage to tobacco leaf piles: (1) hydrogen phosphide conventional fumigation control, (2) carbon dioxide gas fumigation control, (3) nitrogen-filled modified fumigation control and (4) iron powder deoxidant-applied deoxidization fumigation control; 3. carrying out emission or filter purification on fumigation gas after the fumigation control is finished; and 4. carrying out manual and mechanical control to discharge accumulated heat and damp in a plastic sealing tent. The method hasthe characteristics of low cost, mechanical control and environmental protection.

Description

technical field [0001] The invention relates to a method for stacking, sealing and mechanically regulating and storing sheet cigarettes. Background technique [0002] Laminar tobacco is currently the main form of tobacco leaf storage in domestic cigarette factories. Before laminar tobacco is used for production and processing, it needs to go through a storage period of 2 to 3 years to complete the natural alcoholization of tobacco leaves to improve the smoking quality of tobacco leaves. Tobacco leaves are extremely vulnerable to insects and mildew during storage, and daily ventilation and cooling, drying and dehumidification, and ensuring the normal alcoholization of tobacco leaves under natural conditions must be solved. At present, most of the domestic flakes are stored in warehouses. The warehouses with good conditions have good airtightness and are equipped with air conditioners or dehumidifiers. Others are basically conventional natural storage methods. Phosphine is use...

AI Technical Summary

Problems solved by technology

[0003] ①As the climate continues to warm, the safe storage of tobacco sheets relies too much on good warehouse conditions. The current tobacco leaf warehouses generally need to invest a lot of money to ensure that the warehouse has good airtight performance and moisture-proof performance. Various equipment also need to have the ability to prevent fumigation and insecticide corrosion pollution

[0004] ②The scale and area of ​​the sliced ​​tobacco warehouse are generally large. Because the tobacco leaves are frequently transferred in and out of the warehouse, they are easily infected by imported insect pests. It is difficult to find a suitable time to fumigate and kill insects with chemical agents, resulting in the tobacco leaves often being seriously infected with insects.

And because of the lack of effective protection means, the tobacco leaves will be infected with insect pests again after a chemical fumigation and control. It is often necessary to repeat the fumigation and control 2 to 3 times in a year, which is expensive and unsafe.

[0005] ③Most of the current tobacco leaf warehouse insecticides use the whole warehouse phosphine fumigation, and the whole warehouse fumigation will produce more toxic gases, making it difficult to effectively discharge environmentally friendly

[0006] ④In the current daily storage and maintenance system for storing tobacco leaves, warehouses with good conditions are equipped with dehumidifiers or air-conditioning equipment, and dehumidification and cooling are carried out every spring and summer. However, this maintenance mode requires warehouses to have good heat preservation and moisturizing conditions. , whenever there are personnel and logistics in and out of the warehouse, the formed low-temperature and dry storage environment will be destroyed, and the maintenance equipment needs to be turned on repeatedly, which greatly increases energy consumption and storage maintenance costs.

[0007] ⑤ During the storage of tobacco leaves, technical links such as daily maintenance, isolation and pest control, fumigation and desinsection, ventilation and dehumidification, drying and mildew prevention, sealing and oxygen reduction and preservation are disconnected from each other, and the functions are difficult to convert

However, with continuous technological innovation and continuous improvement in actual work, it is found that the above-mentioned patented technology still has many limitations and cannot fully meet the increasing social requirements for safety and environmental protection. The specific defects and shortcomings are as follows:

[0009] ① The first two patented technologies provide a sealed space for tobacco leaf stacks that can mechanically regulate the storage environment, using the method of five-sided sealing of the tobacco leaf stacks, without emphasizing the use of plastic film liners for the bottom of the tobacco leaf stacks, which is easy Cause the tobacco leaves to absorb the moisture in the floor and cause the humidity or moisture in the tobacco leaves to rise, which is not conducive to the safe storage of the tobacco leaves;

[0010] ② The methods of fumigation after the tobacco leaves are stacked and sealed with plastic tents are still not comprehensive. There is not only the conventional fumigation method of phosphine widely used at present, but also the carbon dioxide gas fumigation control, nitrogen-filled controlled atmosphere control and application with green characteristics. Advanced prevention and control methods such as iron powder oxygen scavenger and oxygen reduction prevention and control;

[0011] ③ Lack of description of carbon emission reduction methods after carbon dioxide fumigation; lack of description of the definition and preparation methods of chemical reaction medium components when toxic gas filtration and purification equipment absorbs phosphine and carbon dioxide;

This single-direction ventilation method is likely to form a dead angle in the sealed tobacco leaf stack during actual operation

[0014] ⑥ In terms of technical means to promote the maintenance and quality of tobacco leaves, there is a lack of technical measures to control the storage environment in sealed tents such as mechanical humidification, mechanical heating, and artificial oxygenation

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