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Method for killing insects of tobaccos by fumigating

A technology of tobacco leaves and stacking, which is applied in the fields of tobacco, tobacco preparation, application, etc., can solve the problems of unfavorable phosphine gas concentration and insufficient airtightness of a closed space, and achieves improved insecticidal effect, is conducive to cleaning and sanitation, and saves resources. Effect

Inactive Publication Date: 2012-12-26
SHENZHEN TOBACCO IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 2. The airtightness of the confined space is not enough, which is not conducive to maintaining the concentration of phosphine gas in the space for a long time

Method used

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with specific examples. The following examples are explanations of the present invention, and the present invention is not limited to the following examples.

[0026] The fumigation insecticidal method of tobacco leaf in the present embodiment comprises the following steps:

[0027] Choose a well-ventilated warehouse, and clean up the area where the tobacco leaves are stacked, especially the ground;

[0028] Stack the cured tobacco leaves layer by layer on the cleaned area;

[0029] Calculate the amount of aluminum phosphide used according to the ratio of 9g of aluminum phosphide per cubic meter of tobacco leaves, put the calculated amount of aluminum phosphide into an open aluminum box without a cover, and seal the aluminum box with a 0.01mm thick polyethylene film the open end of the aluminum box, and the polyethylene film is fastened on the aluminum box with a rubber band, and then the al...

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Abstract

The invention discloses a method for killing insects of tobaccos by fumigating, relating to the field of killing insects of tobaccos, in particular to a method for killing and preventing insects by fumigating tobaccos under storage conditions. The method comprises the following steps: I, placing the tobaccos in a stacking manner; II, placing aluminum phosphide in an uncovered open box made of aluminum or aluminum alloy, sealing the open end of the box by using a polyethylene film and placing the box filled with aluminum phosphide on the top of the stack; III, completely covering the stack and the box by using a five-layer co-extrusion nylon composite film; IV, pasting newspaper strips on the ground surface at the periphery of the stack by using paste; and V, sticking edges of the five-layer co-extrusion nylon composite film on the newspaper strips by using sealing paper after the paste is dry. The effect of killing insects by fumigating is greatly improved without affecting natural alcoholization of the tobaccos.

Description

technical field [0001] The invention relates to the field of insecticide of tobacco leaves, in particular to a method for fumigation of tobacco leaves under storage conditions to kill insects and prevent insects. Background technique [0002] The tobacco leaves after harvesting and roasting contain a large amount of nitrogen-containing compounds, free bases, volatile acids, and gas phase or particle phase substances that are not in harmony with the smoke, resulting in serious green and irritating odors, and poor smoking quality. In order to remove the green smell of tobacco leaves and reduce irritation, improve the aroma quality, reconcile chemical components, improve the flammability and smoking quality of tobacco leaves, flue-cured tobacco must be alcoholized before it can be used in the production of cigarettes. At present, the aging methods of tobacco leaves in China basically adopt natural aging, but the process of natural aging is slow, and generally takes 2 to 3 years...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B3/12
Inventor 叶晓青罗来凌
Owner SHENZHEN TOBACCO IND
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