Electromagnetic heating tunnel type steel belt fluid bed dryer

Abstract

The invention discloses an electromagnetic heating tunnel type steel belt fluid bed dryer which comprises an electromagnetic high-frequency heating part and a drying part. The drying part comprises a tunnel dryer main body, a steel belt, air feeding hoses, a plurality of air gathering covers, a plurality of air gathering pipes, cyclone separators and air exhausting fans arranged above the cyclone separators. Vertical air inlet pipes are arranged at one side of the steel belt; an above-belt air inlet pipe and an under-belt air inlet pipe are connected to each vertical air inlet pipe; air blowing nozzles are distributed on a pipe body of each above-belt air inlet pipe and a pipe body of each under-belt air inlet pipe. The electromagnetic high-frequency heating part comprises an electromagnetic high-frequency air heater and a high pressure fan. According to the electromagnetic heating tunnel type steel belt fluid bed dryer, the electromagnetic high-frequency heating technology is adopted, and the electromagnetic heating tunnel type steel belt fluid bed dryer has the characteristics of being wide in applicability, adjustable in temperature and fast in warming up; during the drying process, conductive drying is conducted by means of heating the steel belt, materials are subjected to direct drying through gas, and the materials are also subjected to fluidized stirring through the gas; the drying capability is high; and drying tail gas of the last stage is reclaimed, energy consumption is thus lowered, and dust discharge during the drying process is reduced.

Description

technical field [0001] The patent of the present invention relates to the technical field of dryers, in particular to an electromagnetic heating tunnel type steel belt fluidized dryer. Background technique [0002] At present, no matter whether the traditional tunnel dryer adopts the trolley type or the belt type, when passing through the drying tunnel, the materials are spread on the trolley or the belt and move together with the trolley or belt, and the position of the material relative to the spread is not static. Therefore, the drying efficiency is not high. In addition, the traditional resistance heating method has defects such as large heat loss, and the resistance wire is easy to burn out due to high temperature aging. Contents of the invention [0003] In order to solve the above-mentioned deficiencies in the prior art, the present invention proposes an electromagnetic heating tunnel type steel belt fluidized dryer. [0004] In order to solve the above technical ...

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Problems solved by technology

[0002] At present, no matter whether the traditional tunnel dryer adopts the trolley type or the belt type, when passing through the drying tunnel, the materials are spread on the trolley or the belt and move together with the trolley or belt, and the position of the material relative to the spread is not static. moving, therefore, the drying efficiency is not high

In addition, the traditional resistance heating method has defects such as large heat loss, resistance wire is easy to burn out due to high temperature aging, etc.

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