Method and apparatus for adding tobacco material

Abstract

The invention provides a charging method capable of improving the charging uniformity of a tobacco material and equipment used by the same. In a liquid material charging process, the tobacco material is spread from the top down and hot air flows from the bottom up, so the tobacco material is in a reverse suspension state relative to the hot air and a liquid material; the corresponding charging equipment comprises a charging chamber provided with a liquid material nozzle; the charging chamber is a vertical barrel-shaped cavity; the inside of the barrel-shaped cavity is sequentially provided with a feeding device, a charging area and a discharging device from top down and the material falls down from top in the barrel-shaped cavity; and the top of the barrel-shaped cavity is provided with an air suction opening and an exhaust fan, an air inlet and an air heat exchanger are arranged close to the lower end of the barrel-shaped cavity, a hot air opening communicated with the air heat exchanger is arranged around the bottom of the charging area, and the hot air in the barrel-shaped cavity flows from the bottom up. The method adopts a suspension type charge mode that the material passes through a liquid material mist zone in a suspension state under the action of reverse hot air, so the charging uniformity and the precision are both improved greatly.

Description

technical field [0001] The invention relates to a feeding method for adding feed liquid to tobacco materials, and also relates to feeding equipment for realizing the adding method. Background technique [0002] In the tobacco industry, a drum-type hot air feeding device is usually used to add liquid to the material. The general structure of the drum-type hot air feeding device is: the drum rotates around its own axis under the action of the driving force, a copying board or rakes are arranged on the inner wall of the drum, a feeding nozzle and a steam nozzle are arranged at the feeding end of the drum, and the feeding end and the discharging end Connect the air outlet and air inlet of the hot air circulation system respectively. When the device is working, the material fed into the drum is loosened and thrown up under the action of the lifting board or rake nails. The material exchanges heat with the circulating hot air flowing along the axial direction of the drum while th...

AI Technical Summary

Problems solved by technology

The device has the following disadvantages: (1) The material at room temperature enters the drum and is fed while heating, the heat exchange between the hot air and the material is delayed, the initial temperature of the material is low, and the effect of absorbing the material liquid is not good; (2) Partially atomized material The liquid is easily taken away by the flowing hot air or tidal wind, which not only causes the loss of the material liquid, but also pollutes the air duct, fan, radiator and filter screen, etc., which adversely affects the operation of the equipment and the environment; ( 3) The material will be thrown forward in piles through the copying board or rake nails, and it is difficult to evenly distribute the material, and the uniformity of the material liquid application is poor

This device solves the problem of low material feeding temperature and poor feeding effect, but it is difficult for this device to solve the adsorption of the material liquid on the horizontal ventilation holes, and even block the ventilation holes. It will advance in piles, it is difficult to evenly distribute the material, and the uniformity of the material liquid application is poor

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