Microwave drying machine with movable and adjustable magnetrons

Abstract

The invention provides a microwave drying machine with movable and adjustable magnetrons, and belongs to material drying equipment. A lead screw I and a lead screw II are rotatably arranged on the upper side part of the cavity interior of a microwave drying room in a mutual parallel manner and are located above a rotary type material conveyor belt assembly; the magnetrons are movably arranged on the lead screw I and the lead screw II through nut-type pipe seats; multiple temperature sensors are uniformly arranged on the top wall of the microwave drying room; a motor frame I for fixedly installing a stepper motor I and a motor frame II for fixedly installing a stepper motor II are arranged on a rack; the lead screw I is connected to the stepper motor I through a shaft sleeve I; a driven gear is rotatably arranged on the rack and is engaged with a driving gear on the stepper motor II; the lead screw II is connected to the driven gear through a shaft sleeve II; and the temperature sensors, the stepper motor I and the stepper motor II communicate with an electric control cabinet assembly through conducting wires. The microwave drying machine with the movable and adjustable magnetrons has high material drying efficiency, good quality, high microwave utilization rate and low drying energy consumption; a microwave electromagnetic field can be adjusted in real time; and the scientificand reasonable dynamic distribution of the microwave electromagnetic field is realized.

Description

technical field [0001] The invention belongs to material drying equipment, and mainly relates to a microwave dryer. Background technique [0002] The magnetron is the excitation device for generating microwaves, and it is also the heat source device for the microwave dryer to realize the drying of materials. However, the magnetrons on the current microwave drying equipment are all fixedly installed inside the microwave drying chamber. When the installation position of the magnetron is determined, the transmission mode of the microwave inside the dryer and its electromagnetic field distribution are also uniquely determined, that is, the energy supply mode is uniquely determined. When the material is placed in the microwave dryer, it will always be dried under the action of a fixed microwave electromagnetic field. As the drying continues, the energy supply of the material will continue to change during the drying process, or the energy required by it will be higher than its a...

AI Technical Summary

Problems solved by technology

When the material is placed in the microwave dryer, it will always be dried under the action of a fixed microwave electromagnetic field. As the drying continues, the energy supply of the material will continue to change during the drying process, or the energy required by it will be higher than its actual demand, or the drying energy will be insufficient. , If the temperature is too high, it will cause scorching, and if the temperature is low, it will cause low drying efficiency and poor dryness, which will reduce the drying quality.

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