Microwave dryer for vegetable and fruit crops

Abstract

The invention discloses a microwave dryer for vegetable and fruit crops. The microwave dryer comprises a tray, a roller way, a cavity, magnetrons, a door body, a moisture removal system, a temperatureand humidity sensor, a shielding protection layer, an operation panel and a control cabinet, the tray is arranged on the roller way; a plurality of antiskid patterns are arranged at the lower end ofthe tray; the cavity is formed in the bottom in a fruit and vegetable microwave dryer; a door body is arranged on one side of the cavity; pulleys and sliding rails are arranged below the door body, aplurality of magnetrons are arranged on the inner walls of the two sides of the cavity, the magnetrons are distributed in a rectangular array mode, one ends of the magnetrons are electrically connected with a control cabinet through a concentrator, the moisture removal system comprises an exhaust channel, a fan and a water guide groove, and the exhaust channel is provided with two channels and arranged at the top end of the cavity. The fruits and vegetables are uniformly heated under the direct action of the fruit and vegetable microwave dryer, heat conduction is not needed, sanitation and high efficiency are achieved, the puffing effect is better than that of a conventional wind-heat drying process, and meanwhile the sterilization effect is achieved under the dual action of the heat effect and the non-heat effect of microwaves.

Description

technical field [0001] The invention relates to a primary processing machine for agricultural products, in particular to a microwave dryer for fruit and vegetable crops. Background technique [0002] Existing fruit and vegetable drying equipment feeds hot air into the drying system through the heating system, and directly passes the high-temperature air from the heating system into the drying system. Because the equilibrium moisture content in the drying process is relatively low, fruits and vegetables close to the heat source are in other places. When the fruits and vegetables are not dried, it is easy to form scorched defects, which affects the processing quality of fruits and vegetables, and the drying time is long, the labor intensity is high, and the product quality is unstable. In coordination, from the perspective of the development of refined agriculture, the overall level of fruit and vegetable drying machinery and drying equipment needs to be improved. Contents o...

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Problems solved by technology

[0002] Existing fruit and vegetable drying equipment feeds hot air into the drying system through the heating system, and directly passes the high-temperature air from the heating system into the drying system. Because the equilibrium moisture content in the drying process is relatively low, fruits and vegetables close to the heat source are in other places. When the fruits and vegetables

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