Air separator capable of separating tobacco stems from tobacco shreds in multi-level manner

Abstract

The invention relates to an air separator capable of separating tobacco stems from tobacco shreds in a multi-level manner, particularly relates to threshing and air separating equipment used in threshing and redrying procedures, and belongs to the technical field of tobacco processing equipment. The air separator capable of separating the tobacco stems from the tobacco shreds in the multi-level manner comprises a plurality of air separator bodies. The air separator bodies work independently and are serially connected with one another to form the air separator, and materials which do not meet requirements can be directly conveyed into a feed inlet of a next air separator body from a discharge outlet of a previous air separator body via a conveying mesh belt mounted in the previous air separator body, and then are subjected to secondary air separation; the materials can be continuously and repeatedly separated in different levels owing to separation bins in the different air separator bodies which work independently, separation air pressures with different air powers, different air speeds, different dimensions of the various separation bins, different material flow rates and different speeds of the conveying mesh belts. The air separator has the advantages of high efficiency, low energy consumption and simple structure, and material loss is low in a processing procedure.

Description

technical field [0001] The invention relates to an air separator for multi-stage separation of tobacco stems and tobacco flakes, in particular to a threshing air separator in the process of threshing and redrying, and belongs to the technical field of tobacco processing equipment. Background technique [0002] Airflow and air separation principle: Flotation of a certain material in the air flow, setting a certain air flow speed, so that the lighter part of the material whose suspension speed is lower than the set air flow speed moves upward, while the suspension speed in the material is higher than the set air flow speed. The heavier part moves downward, so that the material is separated into heavier and lighter parts in the airflow. [0003] CN 102626257 A and CN 2791087 Y disclose equipment for sorting tobacco flakes and tobacco stem mixture by using wind power, and the sorted effective leaves are sent by wind to carry out gas-material separation by using a rotary blanking...

AI Technical Summary

Problems solved by technology

[0005] The lighter and effective materials separated by the wind force of the above equipment are separated by pipeline transportation and air-material separation device. During the transportation and separation process, the moisture content of the material is reduced, and the mechanical friction is intense, resulting in a smaller size of the material and a large amount of debris. At the end, the use value of materials is reduced

At the same time, the above devices can only complete the sorting function, and all of them need a feeder to complete the separation of gas and materials. The equipment is complicated, the energy consumption is high, and the material loss is large.

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