Heated air circulation bake oven

Abstract

The present invention relates to a hot air circulating dry oven, which belongs to a periodical electric cooker and comprises a stainless square pipe and an electric cooker main body welded by steel plates. The furnace casing is divided into an inner layer and an outer layer, and an insulation layer is arranged between the two layers; a hot air circulating system, a charging basket rotating system and a fast cooling system are arranged on the electric cooker main body. The hot air circulating system comprises a hot air circulating blower arranged at the top part of the electric cooker main body, a fan connected with the hot air circulating blower, two heaters arranged at both sides of the fan and an air guiding system composed of air deflectors at the top and both sides of each heater. The charging basket rotating system comprises at least one group of traversing slewing machine which can perform separate slewing heating for at least one charging basket; the fast cooling system comprises an air blower and a draught fan connected with the air guiding system. The present invention aims at resolving the problems of the uneven material changing and the great local temperature variation during the material clotting, tempering and annealing process, improves the production efficiency, reduces the production and operation cost, and resolves the problem of evenness of the furnace temperature for the structure.

Description

technical field [0001] The invention relates to heat treatment equipment for sintering, tempering, annealing and the like on materials, in particular to a hot air circulation oven. Background technique [0002] With the advancement of science and technology and the development of the times, people have continuously improved the process requirements for material heat treatment, and furthermore, more specific requirements have been put forward for the temperature deviation in the effective heating zone of the electric furnace for material heat treatment. [0003] In order to make all parts of the heat-treated material (especially large or multiple pieces) after heating meet the uniform heat treatment requirements, reduce the performance deviation between materials, and further improve the internal quality of the product, the temperature deviation range in the effective heating zone (Furnace temperature uniformity) requirements are getting smaller and smaller. [0004] In the ...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a hot air circulation oven to solve the problems of uneven material changes and large local temperature differences during the he

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