Tobacco material wind selection method and device

Abstract

The invention provides a tobacco material winnowing method and an equipment thereof. The tobacco material enters through a transportation equipment into a primary winnowing room to choose sundry goods of larger density by the primary winnowing room having higher wind speed; the tobacco material which is wind separated by the primary winnowing enters into a secondary winnowing room having lower wind speed to choose sundry goods with less larger density; the tobacco material which is wind separated by the two winnowing processes is output via a discharge opening. The equipment implementing the method comprises two winnowing rooms connecting with each other in parallel, supplementation wind gap of each winnowing room is provided with a damper to obtain proper air quantity and air speed for winnowing. The equipment is capable of achieving winnowing the tobacco material for two times with enhanced winnowing efficiency, simple structure and convenient maintenance.

Description

technical field [0001] The invention relates to a method and equipment for sorting tobacco materials, in particular to a method and equipment for sorting tobacco materials by means of winnowing. Background technique [0002] During the production of tobacco products, tobacco materials are usually mixed with various foreign matters, which will affect the quality of finished cigarettes. Tobacco companies usually use winnowing to remove foreign matter in tobacco materials. The basic principle of winnowing is to separate the tobacco material with a relatively small suspension speed from the foreign matter with a relatively high suspension speed according to the difference in the suspension speed of the material and foreign matter. However, when the difference in the suspension speed of the material and the foreign matter is not large, the separation efficiency will decrease. In order to improve the accuracy of winnowing, multiple winnowing equipment can be connected in series ...

AI Technical Summary

Problems solved by technology

This method is also one-time winnowing of wind speed, the separation accuracy is not high, the winnowing equipment is bulky and the system is complex

[0006] Therefore, no matter which of the above wind selection equipment is used, the essence is to use a wind speed one-time winnowing method to remove sundries, and it is impossible to effectively separate small stems and other sundries, especially these small stems, etc. Impurities seriously affect the quality of cigarettes during the rolling process

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