Off-line processing and recycling equipment and method for finely separating and classifying tobacco leaf chippings

Abstract

The invention is suitable for primary processing of raw materials in a tobacco leaf redrying workshop, and relates to off-line processing and recycling equipment and method for finely separating and classifying tobacco leaf scraps. Comprising a first-stage vibrating screen two-layer screening device, a first-stage gravity winnowing machine, a second-stage vibrating screen two-layer screening device, a second-stage gravity winnowing machine, a third-stage vibrating screen single-layer screening device and a fourth-stage vibrating screen two-layer screening device which are sequentially arranged in the direction of a tobacco leaf fragment conveying main line, and further comprises a cyclone dust collector and a circular vibrating screen. The classification of the tobacco flakes with the tobacco leaf chippings larger than 1.5 mm is mainly completed by adopting a (4 + 1)-level vibrating screen (namely a four-level main vibrating screen and a one-level branch vibrating screen) and a two-level gravity winnowing machine, and the classification of the tobacco flakes smaller than 1.5 mm and the tobacco ash is mainly completed by adopting a cyclone dust collector and a circular vibrating screen; the non-tobacco sundry hemp velvet line separation and removal of the tobacco leaf chippings mainly adopt a hair collecting belt for impurity removal, a hair collecting wheel for impurity removal and a hemp thread removal machine for impurity removal, so that the utilization rate and the purity of tobacco leaf raw materials are improved.

Description

technical field [0001] The invention relates to the technical field of tobacco processing and is suitable for the primary processing of raw materials in a tobacco leaf redrying workshop, in particular to an off-line processing and recycling device and method for finely separating and classifying tobacco scraps. Background technique [0002] In the tobacco industry, tobacco shavings generally refer to the mixture of various tobacco leaves and shredded tobacco residues produced in the production of cigarettes, which are also called shredded tobacco under normal circumstances. For each tobacco leaf debris produced in the threshing and redrying workshop, it is a relatively complex mixture, containing precious tobacco leaves and stems, as well as fiber hemp that is harmful to cigarette products, etc. Therefore, the fineness of tobacco leaf debris is Chemical separation and classification has always been the focus and difficulty of the tobacco processing industry. [0003] Althou...

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Problems solved by technology

[0007] In order to solve the fine separation, classification and recovery of the complex mixture of tobacco scraps collected in the rebaking workshop, and to realize the classification of various tobacco sheet specifications and the elimination of non-tobacco impurities, the present invention provides a finely separated and classified tobacco scrap The off-line processing and recycling equipment and method of scraps are aimed at improving the utilization rate of raw materials of tobacco leaves and the purity of raw materials of tobacco leaves, realizing lean production of tobacco and improving the quality of cigarettes

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