Inflatable-seal-type cross-flow drying oven with dual drying cars

Abstract

The invention relates to the field of drying equipment, in particular to an inflatable-seal-type cross-flow drying oven with dual drying cars, which has the advantages of even drying, large processing capacity, good sealing property and high heat utilization rate. The drying oven comprises a oven body (1); two drying chambers (2) are arranged in the oven body (1) symmetrically; a fresh air inlet (3), a moisture outlet (4) and an air draft device are arranged at the top of the oven box (1) respectively; an air-out chamber (5) is arranged between the drying chambers (2); an air-in chamber (6) is formed among the top of the drying chamber (2), the side of the drying chambers (2) close to the oven body (1) and the oven body (1); drying cars (7) are arranged in the drying chambers (2); a filter (8) is arranged at the side, close to the air-in chamber (6), of the drying chambers (2) and the other side is communicated with the air-out chamber (5) by an inflatable-seal device; the filter (8) is arranged at the part corresponding to the air draft device, above the air-out chamber (5); the fresh air inlet (3) is communicated with the drying chambers (2) by a heater (9) arranged in the air-in chamber (6); and the moisture outlet (4) is connected with the air draft device.

Description

technical field [0001] The invention relates to the field of drying equipment, in particular to an inflatable and sealed double-drying car through-flow oven. Background technique [0002] The oven is a kind of drying equipment. It adopts the new technology of energy-saving and environment-friendly heating promoted by the state. It generates heat sources through different heating methods. When these heat sources are absorbed by the heating object, they can be directly converted into heat energy, thereby obtaining a rapid drying effect and shortening production. cycle, save 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 air through the air duct to make the internal temperature of the oven uniform; the other is heat transfer oil. Circulation heating, it is mainly to insert the ...

AI Technical Summary

Problems solved by technology

However, the hot air in this flat-flow oven only flows along the surface of the material, so that the contact area between it and the material is limited, the heat exchange is insufficient, the required drying time is long, and energy is wasted. Evaporation is more difficult, and at the same time, the upper layer of each layer of material dries faster than the lower layer, which limits the drying speed and the drying effect is not ideal

[0005] Due to the above-mentioned problems in the advection oven, another cross-flow oven that adopts hot air circulation heating method to dry gradually appeared on the market. According to the improvement of the internal structure of the oven, the hot air forms a cross-flow airflow to pass through the material. The contact area between the airflow and the material is increased, and the heat exchange is sufficient, which overcomes the shortcomings of the advection oven to a certain extent, but this kind of oven is more likely to cause the material to scatter than the advection oven, and the impact on small particle materials is particularly obvious; at the same time, this The scattered small particles move with the air flow, which is easy to pollute the inside of the equipment and the air outlet device, affecting the drying effect and increasing the maintenance intensity

In addition, the material handling capacity of the generally used through-flow oven is relatively small, which will affect the working efficiency of the entire treatment process or process to a certain extent.

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