Electric heating device of layer type oven and layer type oven

Abstract

The invention provides an electric heating device of a layer type drying oven and the layer type drying oven, and belongs to the technical field of drying devices. The electric heating device comprises a heat conduction shell body, a plurality of mica heating plates and a high-temperature insulating wire, the heat conduction shell body comprises a base body and a plurality of cover plates, a plurality of cover plate mounting grooves are formed in the surface of the base body, one heating plate mounting groove is formed in the groove bottom of each cover plate mounting groove, the plurality ofmica heating plates are arranged in the heating plate mounting grooves in a one-to-one correspondence mode, a plurality of cover plates are arranged in the plurality of cover plate mounting grooves ina one-to-one correspondence mode, the mica heating plates are clamped between the base body and the cover plates, two binding posts are further arranged on the base body, and the high-temperature insulating wire is used for connecting the plurality of mica heating plates and the two binding posts. The electric heating device is rapid in heating and temperature rise, has maintainability, does notneed casting molding, shortens the production cycle of products, eliminates the possibility that impurities are mixed in the casting process, and does not influence the cleanliness of a drying chamber.

Description

technical field [0001] The disclosure relates to the technical field of heating devices, in particular to an electric heating device for a layer oven and the layer oven. Background technique [0002] At present, when the glass is baked, a layer oven is often used, and the layer oven uses a cast aluminum heating plate as the electric heating device in the layer oven. [0003] The cast aluminum heating plate is an electric heating device composed of a tubular electric heating element as the heating body and an aluminum alloy material as the shell. The tubular electric heating element is placed in the mold, and then the liquid aluminum alloy is injected into the mold, and the liquid aluminum alloy is solidified. A one-piece cast aluminum heating plate can be formed. [0004] However, the above-mentioned cast aluminum heating plate is slow to heat up, and the temperature consistency of the plate surface is poor, and there are many defects in the casting of the cast aluminum hea...

AI Technical Summary

Problems solved by technology

[0004] However, the heating of the above-mentioned cast aluminum heating plate is slow, the temperature uniformity of the plate surface is poor, and there are many defects in the casting of the cast aluminum heating plate

For example, the casting and molding process takes a long time, which will lead to a long production cycle of the cast aluminum heating plate, which will affect the delivery date of the automatic oven equipment; The precipitation on the aluminum surface affects the cleanliness of the drying room; the integrated cast aluminum heating plate formed by casting, the tubular electric heating unit inside the shell cannot be taken out separately, and when the tubular electric heating element fails, it cannot be replaced and can only be scrapped, resulting in waste, etc.

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