Improved low-temperature vacuum drying oven

Abstract

The invention discloses an improved low-temperature vacuum drying oven. The improved low-temperature vacuum drying oven comprises an oven body, drying trays and at least one layer of drying rack, the inner top of the top of the oven box is semi-elliptical, the inner bottom of the bottom of the oven body is concave, and the concave portion of the inner bottom is provided with a drainage pipe; the drying racks are arranged inside the oven body, both the upper end and the lower end of the drying racks are provided with a steam pipe, the connector opening of each steam pipe is provided with a quick connector, and the drying trays are arranged on the drying racks. The improved low-temperature vacuum drying oven improves vacuum-pumping efficiency, avoids dead angles, solves the problem that materials at the top layer is not easy to dry, improves drying efficiency, solves the problems that materials are easy to be scorched at the contact position of the bottom of the drying tray and a heat dissipating coil pipe, improves drying efficiency on the whole and reduces drying energy loss.

Description

technical field [0001] The invention relates to the technical field of drying ovens, in particular to an improved low-temperature vacuum drying oven. Background technique [0002] The so-called vacuum drying is to heat and dry the dried material under vacuum conditions. It uses a vacuum pump to pump air and dehumidify to form a vacuum state in the working room, reduce the boiling point of water, speed up the drying speed, and can dry at a lower temperature. Under this condition, a higher drying rate is obtained, the heat is fully utilized, and no impurities are mixed in the drying process. The drying oven is widely used in medicine, food, light industry, chemical industry and other industries for low-temperature drying. It has the advantages of fast drying speed, low pollution, and will not damage the internal quality of the dried items. The top of the existing drying box is square, leaving a dead corner, so that the top layer of the baking tray with materials is not easy t...

AI Technical Summary

Problems solved by technology

The top of the existing drying box is square, leaving a dead corner, so that the top layer of the baking tray with materials is not easy to dry; water constantly appears at the bottom of the box, which affects the drying efficiency; the drying tray is in close contact with the cooling plate, resulting in It is easy for the material to be scorched at the contact between the bottom of the baking pan and the heat dissipation coil

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