Tobacco Leaf Conservation Method

Abstract

The invention discloses a tobacco conservation method suitable for disinsection, mold prevention and alcoholization of stored goods such as tobacco leaves, tobacco shreds and tobacco stems. The purposes of preventing insects and avoiding cross infection are achieved through heat sealing; the tobacco temperature and humidity are monitored through a wireless temperature and humidity monitoring probe arranged in a tobacco pile and a tobacco bale core; temperature and humidity monitoring data is wirelessly transmitted to a PC (personal computer) data collection terminal, and a temperature and humidity integrated machine is controlled to be started and stopped through an automatic integrated circuit control technology if tobacco temperature and humidity monitoring situations deviate from interval temperature and humidity conditions set by a PC according to the interval temperature and humidity conditions set by the PC, so that the tobacco leaves are conserved under the set temperature and humidity conditions that the humidity is 50-65RH and the temperature is 22-27 DEG C; moreover, the method can be used for effectively reducing the usage frequency of aluminum phosphate and ensuring an insecticidal effect.

Description

Technical field [0001] The invention relates to a tobacco leaf curing method suitable for insect removal, mildew prevention and aging of stored materials such as tobacco leaves, cut tobacco, tobacco stems and the like. Background technique [0002] Tobacco maintenance and insect pest control in China mainly adopt aluminum phosphide fumigation to kill insects or carry out chemical control spraying method, warehouse empty warehouse and comprehensive environmental management in the surrounding environment. Tobacco leaf aging and curing mainly rely on natural aging method; tobacco leaf sealing storage mainly adopts air conditioning Tobacco conservation and other methods have achieved obvious results. However, when carefully analyzing the current situation of integrated control of tobacco pests and tobacco leaf maintenance, it is not difficult to find that there are still some problems and difficulties. These problems are mainly manifested in the following aspects: [0003] 1. The exte...

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Problems solved by technology

[0004] 2. The conditions of the tobacco leaf warehouse are uneven, and there are many dead corners and gaps, which are easy to breed tobacco pests

Insect-bearing smoke that has not been fumigated and insecticide-treated is brought into the factory area with a large number of insect sources, spread and spread in the storage area, some fly to other warehouses, and some spread to the surrounding environment. Through continuous growth, Breeding, it is possible to cause cross-infection to the tobacco leaf warehouse again at any time

[0006] 4. Pest control methods are single, and the frequency of control is insufficient

This method has a simple and quick spraying process, and can quickly suppress the sudden adult tobacco pests in the warehouse, but it cannot play an insecticidal effect on the hidden tobacco pests and insect eggs, pupae and other insect states. The effect cannot be sustained even when new insects appear

Therefore, after applying this method once, the number of tobacco adults can only be controlled for a short period of time, but the insecticidal effect on hidden larvae, eggs, and pupae cannot be achieved. After a period of development, these residual insect sources It will form a new source of insects, lay eggs everywhere and spread

[0007] 5. The most practical method of killing insects in tobacco leaves is to use aluminum phosphide fumigating method. Although this method is economical and convenient, long-term use is accompanied by several serious safety and pollution problems:

[0008] ① Aluminum phosphide, an effective insecticidal component after the decomposition of aluminum phosphide, is highly toxic and can easily cause danger to personal safety. After killing insects, aluminum phosphide and other highly toxic gases can only diffuse to the surrounding areas of the warehouse. Serious pollution of the surrounding environment

[0009] ② Aluminum phosphide is very easy to spontaneously ignite during use. Many fires have been caused in tobacco factories and grain warehouses in various places, causing huge losses, and it is a major safety hazard

[0010] ③ Aluminum phosphide is easy to absorb water and dissolve to produce phosphine, an insecticide. Phosphine has strong acidity and will seriously corrode warehouse equipment

[0011] ④ Aluminum phosphide has strong permeability. Although it is beneficial for killing insects, its highly toxic and residues are not easy to eliminate. Long-term use will have adverse effects on reducing tar and harm in cigarettes

[0012] 6. Modified atmosphere tobacco leaf maintenance is used for insecticide and maintenance of tobacco leaves. Although the effect of insecticide is achieved, the normal alcoholization of tobacco leaves cannot be guaranteed. Once stored for a long time, once the warehouse is opened in an emergency, the stored tobacco leaves are easily oxidized when exposed to air, affecting Tobacco quality

[0015] The disadvantages of the air-conditioning agent storage method are: first, it causes tobacco leaf pollution. The main component of the air-conditioning agent is reduced iron powder, which will produce ferric oxide after reacting with oxygen. The air-conditioning agent requires a certain degree of air permeability on the product packaging. In the process of transportation, handling and construction, it is easy to leak powder, the packaging is easy to be damaged, and the stored items are easy to be polluted, which will pollute the tobacco leaves

Second, the odor and miscellaneous gas in the stack cannot be discharged in time. The method of air conditioning and oxygen reduction will cause negative pressure in the stack, which will cause the peripheral air to enter the stack on the one hand; The odor and miscellaneous gas will be absorbed by the tobacco leaves and affect the quality of the tobacco leaves

[0016] The disadvantages of the carbon dioxide modified atmosphere sealed storage method are: the cost is relatively high, and condensation is prone to occur during the slow-release operation of carbon dioxide, resulting in excessive humidity in the sealed stack and mildew of the tobacco leaves

[0017] 9. Although the existing technology can solve the problem of tobacco leaf pests, in terms of tobacco leaf maintenance, ventilation through ventilation ducts, and the way of continuously replenishing air is prone to control dead angles, and environmental control is not complete. The wired temperature and humidity monitoring system requires frequent manual operations. Turn on the ventilation equipment after data monitoring, the ventilation time is long, and the processing effect is low