A wind separator for multi-stage separation of tobacco stems and tobacco flakes

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 a multi-stage air separator for separating tobacco stems and tobacco sheets, in particular to an air separator for leaf threshing and redrying, and belongs to the technical field of tobacco processing equipment. Background technique [0002] The principle of airflow wind separation: Flotate a certain material in the airflow, set a certain airflow velocity, so that the lighter part of the material whose suspension velocity is lower than the set airflow velocity moves upward, while the suspension velocity of the material is higher than the set airflow velocity The heavier part of the material moves downwards, so that the material is separated into two parts, heavier and lighter, in the airflow. [0003] CN102626257A and CN2791087Y disclose equipment for sorting tobacco flakes and tobacco stem mixture materials by wind force, and the sorted effective blades are blown by air and then separated by a rotary feeder; [0004] CN101053...

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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