Smoked sheet multiple roasting method and special-purpose equipment thereof

Abstract

The invention relates to a smoked sheet re-drying method and a special device thereof, and is characterized in that the smoked sheet re-drying method comprises the steps as follows: smoked sheets to be re-dried pass through three series drying areas of an airflow drying cavity in an airflow-typed smoked sheet re-drying device in sequence under the control of a feeding machine; the fluidized smokedsheets are heated by utilizing the convection heating of the hot air; the three drying areas of the airflow drying cavity respectively realize the heating up, the rapid dehydration and the water balance of leaves, so as to lead the moisture content of the smoked sheets to directly reach the technological requirements of 11 percent to 13 percent without cooling and dampening. The device comprisesthe feeding machine, a belt scale (3) which is arranged at a discharge hole of the feeding machine, a belt conveyor (4) which is connected with the discharge hole of the belt scale, and the airflow-typed smoked sheet re-drying device which is connected with a discharge end of the belt conveyor; wherein, the airflow-typed smoked sheet re-drying device comprises a first drying area (5), a second drying area (6) and a third drying area (7) which are formed by three unattached drying apparatuses that are combined in series.

Description

technical field [0001] The invention relates to a tobacco processing technology, in particular to a method for redrying tobacco sheets and special equipment thereof. Background technique [0002] Tobacco redrying is a sorting and preparatory process for transforming tobacco leaves from agricultural products to raw materials for industrial production, and it is a very important link in the overall processing of tobacco. ("Tobacco Science and Technology", No. 5, 2005, page 3). With the development of tobacco leaf redrying technology, threshing and redrying is a commonly adopted method at present, that is, the leaves and stems of tobacco leaves are separated in the redrying factory, and the tobacco leaves are redried separately, and then sent to the cigarette factory for use. The production process of threshing and re-roasting goes through several important processes such as leaf matching, unstalking, moistening leaves, threshing and destemming, re-roasting of tobacco sheets, ...

AI Technical Summary

Problems solved by technology

However, microwave drying is limited by the manufacturing power of the magnetron, and it is difficult to achieve high-flow rebaking to meet the requirements of industrial production

In addition, the main component of microwave drying - the magnetron has a limited service life. Generally, after 1 to 2 years of use, its power decays to less than 80% and needs to be replaced, and the cost of use is relatively high.

The safety of microwave work is also a problem that needs to be treated carefully

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