Drying device and method for effectively improving quality of agricultural products

Abstract

The invention relates to a drying device for effectively improving the quality of agricultural products. The drying device is characterized in that an atmospheric valve and a pressure gauge are arranged on a drying box, a water storage pipe is connected to an ultrasonic atomizing type superheated steam generator through a water conveying pipe, and a steam outlet of the ultrasonic atomizing type superheated steam generator is connected to an overheated steam distributor of the drying box through a first steam pipe; a steam outlet of the drying box is connected to a condenser through a second steam pipe, a liquid outlet of the condenser is connected with a liquid collecting bottle, and a vacuum pump is connected to the condenser through a vacuum pipeline. The invention relates to a drying method for effectively improving the quality of the agricultural products. The drying method comprises the steps of 1) preheating, 2) feeding, 3) vacuumizing, 4) steam introducing, 5) material drying and 6) experiment finishing. The drying device and method are scientific and reasonable in design, overheated steam is generated fast and efficiently, energy consumption is reduced, and the drying temperature is low; and the drying equality of the agricultural products can be improved, and the drying device and method are especially suitable for drying food, the agricultural products and other heat-sensitive materials.

Description

technical field [0001] The invention belongs to the technical field of drying, and relates to a drying device for agricultural products, in particular to a drying device and a drying method for effectively improving the quality of agricultural products, and is especially suitable for drying heat-sensitive materials such as agricultural products and food. Background technique [0002] The superheated steam drying process has the advantages of high heat and mass transfer efficiency, and the quality of the material can be better protected during the drying process. The whole drying process has no waste gas emissions and no pollution to the environment. In recent years, it has been more and more favored by researchers. favor. Atmospheric pressure superheated steam has a high drying temperature, which usually has a serious impact on the quality of heat-sensitive materials such as agricultural products and food during the drying process. If the pressure of the drying process is r...

AI Technical Summary

Problems solved by technology

This invention also uses a steam generator to heat water to 100°C to generate steam at atmospheric pressure. This process not only consumes relatively high energy, but the invention does not explain how to pass superheated steam into the drying box and realize the process of drying in the drying box. The pressure is stable, and the device cannot achieve online weighing of materials under low pressure conditions

Images