Method and device for removing local moisture in box-packed tobacco

Abstract

The invention relates to a method and equipment for removing local moisture in box-packed tobacco. The method for removing local moisture in box-packed tobacco includes the steps of: 1) preheating with dry hot air; 2) starting radio frequency heating and simultaneously using dry hot air to assist heating Until the heating target temperature is reached; 3) Vacuum the cavity, and keep the first preset time after reaching the target vacuum; 4) Return to normal pressure; 5) Start radio frequency heating again and use dry hot air to assist heating, and keep the second preset time Set the time, when the preset heating times are reached, stop the dry hot air and stop the radio frequency heating, otherwise return to step 3); 6) Vacuumize, and keep the third preset time after reaching the target vacuum degree; 7) Pass dry cold air And continue for the fourth preset time, if it drops to the target end temperature, then end, otherwise return to step 6). The invention can achieve the purpose of quickly removing the moisture in the local area of ​​the box-packed tobacco and effectively avoiding adverse effects on the quality of the tobacco in the non-wet area in the box.

Description

technical field [0001] The invention relates to the technical field of drying agricultural products, in particular to a method and equipment for removing local moisture in box-packed tobacco. Background technique [0002] As a raw material for the tobacco industry, box-packed tobacco will absorb water and become damp during the alcoholization and fermentation process and become moldy. The loss ranges from lower grades of tobacco leaves to severe damage to the complete unusability of tobacco leaves. After the cigarette is moldy, its contents decompose rapidly, the normal structure and contents are destroyed, the appearance is darkened, the original aroma disappears, a strong musty smell is emitted, the smell deteriorates seriously, and the irritation increases. Large, bitter and dry when inhaled, unable to enter the throat, while the toughness and elasticity are greatly reduced. When the mildew is severe, it will completely turn into black stained and foul-smelling rot, losin...

AI Technical Summary

Problems solved by technology

[0002] As a raw material for the tobacco industry, box-packed tobacco will absorb water and become damp during the alcoholization and fermentation process and become moldy. The loss will reduce the grade of tobacco leaves in the slightest, and cause the tobacco leaves to be completely unusable.

After the cigarette is moldy, its contents decompose rapidly, the normal structure and contents are destroyed, the appearance is darkened, the original aroma disappears, and a strong smell of moldy acid is emitted, the taste deteriorates seriously, and the irritation increases Large, bitter and dry when inhaled, unable to enter the throat, and at the same time the toughness and elasticity are greatly reduced. When the mildew is severe, it will completely turn into black stained and foul-smelling rot, losing its use value

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