Microwave drying kiln

Abstract

The invention discloses a microwave drying kiln. The microwave drying kiln comprises a bridge body bottom plate, a reversing end frame fixedly installed outside one side of the bridge body bottom plate and a power end frame fixedly installed outside the other side of the bridge body bottom plate. The bridge body is fixedly installed at the top of the bridge body bottom plate, a through groove bodyis formed in the plate surface of the bridge body, a conveying belt is arranged in the through groove body, and one end of the conveying belt is connected with a driving motor in the reversing end frame in a sleeving mode. The other end of the conveyor belt is connected with a driving motor in the power end frame in a sleeving mode, a plurality of microwave heating boxes are fixedly installed ona frame of a bridge body, and the conveyor belt penetrates through the interior of the microwave heating boxes. According to the microwave drying kiln, the residence time of materials in the microwaveheating boxes is controlled by adjusting the moving speed of the conveyor belt, that is, the roasting time of the materials is controlled; in the microwave roasting process of the materials, the phenomenon that the temperature of the surface materials in direct contact with gas is too low is eliminated, so that the materials are roasted uniformly and fully, and the microwave drying kiln is further suitable for microwave heat treatment of other powdery materials, such as drying, sintering and the like.

Description

technical field [0001] The invention relates to a microwave drying kiln. Background technique [0002] Microwave heating is the process of absorbing electromagnetic energy and converting it into heat energy by using the dielectric properties of the material itself. This technology has been widely used in drying and dehydration, high-temperature sintering of ceramics, and has achieved industrial applications. For ore processing and pretreatment, the advantages of microwave heating, such as selective heating, rapid temperature rise, energy saving and environmental protection, have unique technical advantages compared with traditional heating, and a new microwave roasting process has emerged. However, the research on this process is still in the laboratory and pilot test stage. The experimental equipment is generally household microwave ovens, microwave muffle furnaces, etc., which are intermittent equipment. Limited by conditions such as low temperature of the contact surface...

AI Technical Summary

Problems solved by technology

However, the research on this process is still in the laboratory and pilot test stage. The experimental equipment is generally household microwave ovens, microwave muffle furnaces, etc., which are intermittent equipment. Limited by conditions such as the low temperature of the surface material in contact, there are still certain technical difficulties in scaling up to an industrial production scale

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