Tobacco leaf vacuum charging system and method

Abstract

The invention relates to a tobacco leaf vacuum charging system and a method. The vacuum unit (8) of the charging system is respectively connected with a first negative pressure container (2) and a second negative pressure container (7) through a first vacuum pipeline (8) and a second vacuum pipeline (11); a first charging door (1), a first discharging door (18) and a vacuum breaker (16) are arranged on the first negative pressure container; a second charging door (19), a second charging door (15) and a charging nozzle (6) led into the second negative pressure container are arranged on the second negative pressure container; a first pneumatic feeder (4) is connected between the first discharging door and the second discharging door in a sealing way; a second pneumatic feeder (14) is connected with the lower end of the second negative pressure container in a sealing way; and a first vacuum valve (10) and a second vacuum valve (12) are respectively arranged on the first vacuum pipeline and the second vacuum pipeline. The tobacco leaf vacuum charging system and the method can improve the capability of feed liquid for immersing in tobacco leaf cell and the feed liquid absorbing uniformity of the leaf and has high production efficiency and simple equipment structure.

Description

technical field [0001] The invention relates to the technical field of equipment and methods for feeding tobacco leaf raw materials in the shredded cigarette process. Background technique [0002] Feeding is the technical process of pumping the prepared feed liquid into the tobacco leaves after being loosened and moistened evenly under the action of the injection medium. Adding different appropriate amounts of tobacco material liquid in the cigarette shredding process can not only enhance or improve the flavor of the tobacco formula, but also form the unique style of different brands of cigarettes. [0003] The typical tobacco leaf feeding process and equipment is to send the loose and dampened tobacco leaves into the drum feeder. In the drum feeder, the feed liquid feeds the blades through the atomizing nozzle, and the drum rotates and rolls to transport the tobacco. The function of stirring the smoke sheet and stirring the smoke sheet, so that the smoke sheet and the feed...

AI Technical Summary

Problems solved by technology

This invention at least has the following deficiencies: 1. only the first negative pressure container is evacuated, assuming that the volume ratio of the first negative pressure container and the second negative pressure container is 1: 1, after the pressure balance, the degree of vacuum is about 50000Pa, which is The absorption capacity of materials under a vacuum degree is very limited; ②The vacuum seal between the first negative pressure container and the second negative pressure container can only be realized in the case of a small channel, which is not conducive to the transportation of large flow materials and affects production efficiency; ③The storage belt conveyor is used in the first negative pressure container. Although it is beneficial to the control of material flow, it has strict requirements on the material and sealing of the belt conveyor, and the equipment manufacturing is difficult; ④The blanking chute and vibration cabinet are only for uniform discharge , after the spices are absorbed in a vacuum state, the structure can no longer realize the uniform absorption of spices by shredded tobacco; ⑤ After feeding, the evacuation system stops working, and the vacuum degree is quickly destroyed, and the difference in vacuum degree before and after feeding is too large, which affects the overall uniformity of the feeding process ⑥The negative pressure range in the first negative pressure container is -0.01~0.09MPa, which obviously does not meet the requirements of vacuum absorption; The actual situation of absorption can not meet the requirements of production capacity

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