Tobacco leaf threshing and destemming technical method and special equipment thereof

Abstract

The invention provides a tobacco leaf threshing and destemming technical method and a special equipment of the tobacco leaf threshing and destemming technical method. The invention is characterized in that the threshing and destemming technology is a three-section type threshing, destemming and leaf-stem separating process, the leaf-stem separating processes of the first stage and second stage threshing sections all adopt the assembled classification in the manner of light spectrum destemming and wind separating, i.e. the last-stage wind separating devices of the first threshing section and the second threshing section adopt high-wind speed wind separation, the all free purified leafs and some leafs with stems are selected from the upstream material, the leafs with stems and the purified leafs in the upstream material are further finely separated from each other by the light spectrum destemming, and the separated leafs with stems are charged into the nest-stage leaf threshing machine. The method has the advantages that 1) the leaf-stem separating purity can be improved, and the stem containing rate in the leafs of the output leafs and the leaf containing rate in the stems of the tobacco stems can be reduced; 2) a threshing and destemming flow path can be effectively simplified by the three-threshing seven-wind separating technology, so that a processing link can be reduced; 3) the threshing times can be reduced, so that the structures of the threshed tobacco leafs and tobacco stems can be improved; and 4) a wind separation unit is reduced, so that the gas use amount can be reduced, and the energy consumption of the system can be reduced.

Description

technical field [0001] The invention relates to a tobacco leaf processing process, in particular to a leaf threshing and destemming process and special equipment for the tobacco leaf threshing and redrying process. Background technique [0002] Tobacco leaves are harvested and initially roasted as primary agricultural products, which need to be threshed and destemmed by threshing and redrying enterprises, redried and dehydrated to be processed into finished tobacco sheets, and then exported to cigarette industrial enterprises as industrial raw materials. The technological task of threshing and destemming is to separate the tobacco stems and leaves from the tobacco leaves, and make the degree of separation, size and process loss of the two meet the specified quality requirements. Threshing and destemming are the main links in the leaf making process. The process quality of stem leaf separation in this process is the key to the raw material consumption of tobacco leaves in thr...

AI Technical Summary

Problems solved by technology

This method reduces the load of the air separator by dividing the material, which can improve the air separation accuracy to a certain extent, but at the same time further increases the complexity of the process, and the increase of air separation units also increases the energy consumption.

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