Negative-pressure pulse cooperated ordinary pressure radio-frequency spouted-bed drying device and application thereof

Abstract

The invention provides a negative-pressure pulse cooperated ordinary pressure radio-frequency spouted-bed drying device and application thereof and belongs to the technical field of agricultural product and food drying and processing technologies and mechanical device manufacturing. The spouted-bed drying device makes a wet material arranged in a spouted bed heated between left and right electrodeplates under the effect of a radio-frequency field, material moisture is evaporated under the effects of an air blower and a dehumidification fan, and spatial motion and uniform dispersion of the material are achieved under the effect of negative-pressure pulse spouting. Tradition air drying is replaced by ordinary pressure radio-frequency spouted-bed drying, the wet material drying efficiency isimproved, the drying time is shortened, the drying power consumption is reduced, and the uniformity of dried products is improved. Uniform material dispersion is achieved by adopting negative-pressure pulse spouting, the problems such as adhesion, agglomeration, poor quality, time and effort waste and the like in the ordinary pressure drying process of high-adhesion materials are solved, energy is saved by 40% or above, the uniformity is improved by 90% or above, and ordinary pressure efficient energy-saving and high-quality drying of agricultural products and foods is achieved.

Description

technical field [0001] The invention relates to a negative pressure pulse cooperative normal pressure radio frequency spouted bed drying device and its application, which is suitable for high-efficiency and high-quality drying processing of various high-viscosity materials, and belongs to the technical fields of agricultural product and food drying processing technology and mechanical equipment manufacturing. Background technique [0002] Today's agricultural products and food atmospheric drying processing technology and equipment manufacturing are relatively mature, but there are also defects such as low efficiency, poor quality, high cost and heavy pollution. Utilizing efficient physical combination of microwave, infrared and radio frequency to combine atmospheric pressure hot air drying technology and equipment is an important direction to improve traditional atmospheric pressure agricultural products and food drying processing technology. The combination of microwave and...

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Problems solved by technology

[0009] In short, the negative pressure pulse combined with the atmospheric pressure radio frequency spouted bed drying device and the high-efficiency, energy-saving and high-quality processing methods have not been reported in the relevant literature in China, and no papers and patents have been retrieved in this regard abroad so far.

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