A through-flow food drying device with two-way commutation function

Abstract

The invention discloses a flow crossing type food material drying device with a bidirectional flow conversion function. The flow crossing type food material drying device comprises a drying box and a hot air pipeline, a drying chamber is arranged in the drying box, containing guide grooves are symmetrically formed in the two sides of the drying chamber, material trays are arranged on the containing guide grooves, the top and the bottom of the drying chamber are provided with air distribution plates respectively to form an upper circulating air channel and a lower circulating air channel, a separation plate is arranged on one side of the drying chamber to form the hot air pipeline, a dual-channel reversing device is arranged in the hot air pipeline, and provided with two circulating air pipes communicated with the upper circulating air channel and the lower circulating air channel respectively, an air inlet pipe and an air return pipe are arranged to be connected with an air inlet connector and an air return connector on the drying box respectively, and the material trays are flow crossing type material trays with vent holes evenly distributed in the bottoms. The dual-channel reversing device is arranged in the drying box, the same execution mechanism is adopted for controlling integration, so hot air penetrates through the air distribution plates with holes and the material trays in the drying box from bottom to top or from top to bottom to cyclically dry materials, the drying heat efficiency is high, and quality is good.

Description

technical field [0001] The invention belongs to the technical field of drying equipment, and in particular relates to a through-flow food drying device with simple structure, easy operation and bidirectional flow conversion function. Background technique [0002] Although the existing hot air through-flow drying equipment has the function of drying the corresponding materials, in the structural design and drying process of the existing equipment, the material at the end of the air inlet pipe close to the heat source dries faster and has a higher water loss rate. If the temperature is too high, the color will deepen; while the material away from the heat source and close to the air outlet will lose water slowly, the temperature will be low, the temperature difference between the upper and lower material layers will be large, and the material will lose water unevenly in each baking tray, which will affect the drying quality. In order to solve the problem of unevenness, the met...

AI Technical Summary

Problems solved by technology

Part of the drying equipment that adopts the hot air direct discharge method still has the disadvantages of low drying efficiency and serious energy waste.

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