Hot air and microwave coupled drying equipment

Abstract

The invention relates to hot air and microwave coupled drying equipment, belongs to the technical field of microwave drying, and aims to solve the problems that microwave drying is uneven and hot airdrying easily scatters materials. The hot air and microwave coupled drying equipment comprises a drying channel, a hot air generation device, a plurality of microwave generation devices, a separationcabin and a storage tank and is characterized in that the drying channel comprises a horizontally arranged continuous arc-shaped drying channel body; the hot air generation device is arranged at the feeding end of the drying channel; the microwave generation devices are arranged on the drying channel; the separation cabin is connected with the discharge end of the drying channel; the storage tankis arranged at the lower end of the separation cabin. The hot air and microwave coupled drying equipment has the advantages that by the special continuous arc-shaped spiral channel, materials can be prevented from being damaged by overheat and can be sufficiently mixed with hot air and microwaves during moving to achieve fast drying; in addition, the continuous arc-shaped drying channel allows microwaves to have large reflection angles on the inner wall of the channel, be reflected for many times and have long transmission distance, the transmission of the microwaves cannot be easily blocked by the inner wall without edges and corners, and microwave energy can be fully utilized.

Description

technical field [0001] The invention belongs to the technical field of microwave drying, and in particular relates to a hot air microwave coupling drying equipment. Background technique [0002] Hot air microwave coupled drying is a new drying method and technology in which microwave and hot air act on drying materials at the same time, but the inhomogeneity of microwave heating is a major factor restricting its development. Moreover, the research on microwave hot air coupled drying is currently mainly at the experimental research level, and most of the equipment used is transformed from microwave ovens. The lack of industrialized equipment with excellent performance is also the main obstacle restricting the application of this technology. Due to the uncertainty of its shape, the powdery material is easy to be blown up and scattered in the wind. In the current prior art, there is no good method and equipment for coupling and drying it. Contents of the invention [0003] T...

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Problems solved by technology

[0003] The purpose of the present invention is to propose a hot air microwave coupling drying equipment, which solves the problems of uneven microwave drying and easy blowing of materials in hot air drying in the prior art, and realizes material drying by coupling microwave and hot air

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