Reconstituted tobacco integrated tunnel dryer

Abstract

A reconstituted tobacco integrated tunnel dryer comprises at least two layers of drying boxes and the like. The dryer is characterized in that drying boxes include low-temperature drying boxes (3), high-temperature drying boxes (5) and cooling dry boxes (11) arranged behind the high-temperature drying boxes; the low-temperature drying boxes include upper low temperature boxes, lower low temperature boxes and low temperature air blowing nozzles (18); the high-temperature drying boxes include upper high temperature boxes, lower high temperature boxes and high temperature air blowing nozzles (19); each layer of drying boxes are formed by a plurality of pairs of insulated upper boxes and lower boxes which are arrayed in sequence; the cooling dry boxes (11) include upper cooling boxes, lower cooling boxes and cooling air nozzles (10) and are formed by a plurality of pairs of insulated upper boxes and lower boxes which are arrayed in sequence; dampening devices (9) are arranged in the first pair of the drying boxes. The reconstituted tobacco integrated tunnel dryer can be used for moistening, drying, cooling, shaping squeezed reconstituted-tobacco sheets and coated reconstituted-tobacco products and preventing adhesion.

Description

technical field [0001] The invention belongs to the technical field of drying equipment for reconstituted tobacco leaves by the papermaking method. Background technique [0002] In the current paper-making reconstituted tobacco production technology, the reconstituted tobacco leaves are directly dried by air flotation after coating. The disadvantage is that direct high-temperature drying is not conducive to the absorption of the coating liquid, and the coating liquid stays on the surface of the reconstituted tobacco leaves and is easy to stick to each other. , Subsequent processing is difficult. In addition, the reconstituted tobacco leaf base is usually dried in a single-layer air flotation drying box after coating. The disadvantages are that the drying section after coating is too long, takes up space on the site, and has high civil construction costs. Contents of the invention [0003] The purpose of the present invention is to address the deficiencies of the prior art,...

AI Technical Summary

Problems solved by technology

[0002] In the current paper-making reconstituted tobacco production technology, the reconstituted tobacco leaves are directly dried by air flotation after coating. The disadvantage is that the direct high-temperature drying is not conducive to the absorption of the coating liquid, and the coating liquid stays on the surface of the reconstituted tobacco leaves and is easy to stick to each other. , the follow-up processing is difficult. In addition, the reconstituted tobacco leaf base is usually dried in a single-layer air flotation drying box after coating. The disadvantage is that the drying section after coating is too long, occupying space on the site, and the cost of civil construction is high.

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