Preserved fruit drying method

Abstract

The invention provides a preserved fruit drying method which comprises the following steps: providing a preserved fruit drying device; putting a material into a drying region; heating the material through a heat supply system till the temperature reaches a preset value; performing timing control on the temperature and the humidity in a drying room according to set process time so as to dry the material: in the process, a circulating fan pushes hot air to enter an air distribution region in the direction perpendicular to an air distribution plate, and the hot air is continuously blocked by the air distribution plate in the process of moving towards the air distribution plate so as to enter corresponding air distribution channels, can form horizontal flow guide air flowing into the drying region under the guide action of the air distribution channels to dry the material in the drying region, then enters an air return region through an air homogenization plate, and enters an air feeding channel for circulation under the action of the circulating fan; and at the end of the process time, taking out the dried material from a drying disk. According to the preserved fruit drying method, the heat energy can be uniformly circulated in a drying cavity in the drying room according to air paths of the air distribution plate and the air homogenization plate so as to reduce the temperature difference during drying.

Description

【Technical Field】 [0001] The invention relates to the technical field of heating and drying, in particular to a drying method of preserved fruit. 【Background technique】 [0002] In the processing of preserved fruits, the drying of preserved fruits is a very important processing link. Existing dried fruit drying mostly adopts steam or electric heating hot air circulation oven, the specific operation steps are as follows: put the fruit products to be dried, such as mango slices, hawthorn slices, etc. in a baking tray, and the baking tray is placed in a drying trolley , Push the drying trolley into the drying area. The hot air is sent into the drying area by the air supply system, and it comes into contact with the material to remove the moisture of the material. After drying for a period of time, the drying trolley is taken out of the drying area to obtain dried preserved fruit. However, the dried fruit drying device has the following shortcomings: 1. For a large amount of plated...

AI Technical Summary

Problems solved by technology

However, this dried fruit drying device has the following disadvantages: 1. For a large amount of plate-loaded materials, the hot air in the drying area is often disrupted due to stress when it moves in the drying area, causing the temperature of the multi-layer baking trays in the oven to increase. Extremely uneven, with local overheating and local overcooling

Although the oven door is often opened artificially, and the material tray is turned over many times at high temperature, the quality of the dried material still does not meet the requirements, and even waste products are produced, and the labor intensity is high.

2. Use electric oven or steam drying process, which consumes a lot of energy and has low efficiency, resulting in increased production costs

Images