Through-flow type drying oven

Abstract

The invention discloses a through-flow type drying oven which comprises an oven body, a housing, a protective layer, an air inlet box, an air inlet channel, electric heating wires, protective nets, a fan room, fans, air outlets, heat rejection ports, a baffle, a heating plate, a heating wire and infrared heating devices. The through-flow type drying oven has the beneficial effects that the multiple electric heating wires are arranged in the air inlet box and are in hierarchical distribution, so that air entering the drying oven is hot air; the protective nets are arranged at the air inlets of the air inlet box, so that tiny dust particles can be filtered effectively; the baffle is located under the air outlets, so that the wind directions during air suction of the fans can be converted from the vertical direction to the horizontal direction, and a rotation phenomenon of an interior air flow is avoided; the heat rejection directions of the heat rejection ports in the side walls of the fan room are inclined to the upper exteriors, and the flowing of the hot air can be accelerated due to the obliquely upward design; a heating system in the oven body consists of the heating wire and the infrared heating devices jointly, so that the drying time is short by adopting the two heating modes, and the drying efficiency is improved.

Description

technical field [0001] The invention relates to an oven, in particular to a through-flow oven, which belongs to the field of drying equipment. Background technique [0002] Ovens are widely used in precision baking of electronics, motors, communications, electroplating, plastics, metal chemicals, food, printing, pharmaceuticals, PC boards, powders, impregnation, spraying, glass, ceramics, wood building materials, etc. Drying, tempering, preheating, shaping, processing, etc. The oven generates heat sources through different heating methods. When these heat sources are absorbed by the heated object, they can be directly converted into heat energy, thereby obtaining a fast drying effect, shortening the production cycle and saving energy. , Improve product quality and other purposes. [0003] The oven currently used mainly adopts the following two heating methods: one is hot air circulation heating, which mainly uses electric energy to heat the heating tube, and the motor sends...

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Problems solved by technology

[0003] The oven currently used mainly adopts the following two heating methods: one is hot air circulation heating, which mainly uses electric energy to heat the heating tube, and the motor sends air through the air duct to make the internal temperature of the oven uniform; the other is heat transfer oil. Circulation heating, for the oven that adopts the hot air circulation heating method, advection box oven is generally used. The hot air in this advection oven only flows along the surface of the material, so that the contact area between it and the material is limited, and the heat exchange Insufficient, short heating time, uneven heating

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