Cut leaf tobacco microwave vacuum drying equipment

Abstract

Cut leaf tobacco microwave vacuum drying equipment is characterized by comprising a vertical cylinder-shaped drying cavity, a vacuum-pumping system communicated with the drying cavity, and a microwave heating system, wherein the top part and the bottom part of the drying cavity are respectively provided with a feed port and a discharge port, the drying cavity is internally provided with a material dispersion mechanism, the material dispersion mechanism comprises a spindle arranged on the axle center of the drying cavity, and multi-layer material dispersion plates arranged on the spindle, the spindle is driven to rotate by a motor, the microwave heating system is divided into a continuous microwave heating unit arranged on the upper part of the drying cavity and a pulsed microwave heating unit arranged on the lower part of the drying cavity, and the two heating units can respectively hierarchically arranged in multi groups along the shell of the drying cavity. Compared with the prior art, the invention has the advantages that the cut leaf tobacco microwave vacuum drying equipment can carry out the microwave drying in stages to the cut leaf tobacco under the a vacuum status, reduces the drying temperature of the cut leaf tobacco, keeps the fragrant of the cut leaf tobacco, improves the aesthetic quality of the cut leaf tobacco, at the same time, can realize the rapid dehydration and drying of the cut leaf tobacco, and improves the filling value of the cut leaf tobacco.

Description

technical field [0001] The invention belongs to the technical field of tobacco processing, and in particular relates to a microwave vacuum drying equipment for shredded leaves. Background technique [0002] Shredded leaf drying is a key process in the process of tobacco shredded processing. Its technological task is to remove part of the moisture in the shredded leaf to meet the requirements for storage and rolling of the shredded leaf. At the same time, it also improves the sensory quality of the shredded leaf. Processing resistance. [0003] Existing shredded tobacco drying equipment mainly includes drum-type drying equipment, air-flow drying equipment and microwave drying equipment. Hot air convection is used for drying; microwave drying equipment (CN 201005012Y) uses microwave radiation to make the polar molecules in the material vibrate and rub to generate heat to dry the material. [0004] The existing shredded leaf drying equipment mainly has the following deficienc...

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