Water condensation preventing microwave vacuum drier

Abstract

The invention discloses a water condensation preventing microwave vacuum drier. The water condensation preventing microwave vacuum drier comprises a sealing box (1), an electrical appliance box (2) and a control box (3), wherein a material frame (4), a heater (17) and a combination sensor (10) are arranged in the sealing box (1); a microwave generator (5), a vacuum pump (6) and a condenser (7) are arranged in the electrical appliance box (2); a programmable logic controller (PLC) is arranged in the control box (3); and the microwave generator (5), the vacuum pump (6), the condenser (7), the combination sensor (10) and the heater (17) are electrically connected with the PLC. Humidity evaporated by an object is sucked by the vacuum pump, the temperature in the sealing box is slightly influenced, and drying efficiency is improved; by arranging the heater on the top of the sealing box, water vapor on the top is prevented from being condensed to drop on the object; and by arranging at least two pressing pieces at four edges of a sealing door, the seamless joint of the sealing door, a sealing ring and the sealing box can be realized, and sealing performance is ensured.

Description

technical field [0001] The invention relates to a drying device, in particular to an anti-condensation microwave vacuum dryer. Background technique [0002] At present, the drying process involves almost all sectors of the national economy and is widely used in production and life. The purpose of drying is to remove moisture or solvents from certain raw materials, semi-finished products and finished products, so as to facilitate processing, use, transportation and storage. The general drying methods include mechanical method, chemical method and heating (freezing) method. These methods either have huge equipment, high drying costs, or slow drying speed and small processing capacity. With the development of science and technology, such as the emergence of new products such as biological products, new materials (multiphase composite materials, nanomaterials, smart materials and biomedical materials, etc.), advanced ceramics, new advanced foods and new pharmaceutical products...

AI Technical Summary

Problems solved by technology

[0005] (1) Existing microwave dryers use fans to blow out the moisture in the drying box, but this reduces the temperature in the dryer and slows down the drying speed;

[0006] (2) Sealing rings are used at the sealing door of existing microwave dryers, but it is difficult to ensure the seamless fit between the sealing door, sealing ring and sealing box, and the sealing performance is not high;

[0007] (3) After the water vapor of the existing microwave dryer comes into contact with the top of the low-temperature box, it will condense and possibly drip onto the material, prolonging the drying time;

[0008] (4) Most of the material racks of existing microwave dryers have a fixed space size, and when the items are too large, there will be defects that they cannot be put in

Images