Uniform air distribution device for air flotation drying oven

Abstract

The invention proposes a uniform air distribution device for an air-floating drying box, which includes an air inlet pipe, an air distribution pipe and several nozzles, the air distribution pipe and the air inlet pipe are connected to each other, and several nozzle arrays are arranged on the same side of the air distribution pipe And it communicates with the air distribution pipe. The air distribution pipe also includes an air collecting hood, an air distribution pipe and a reflector. An air inlet is arranged above the air distribution pipe. The air collecting hood is fixedly installed inside the air distribution pipe. There is an air inlet in the middle of the air distribution pipe, and air outlet holes are arranged in an array along the length direction of the air distribution pipe. The large mouth of the air collection hood is connected to the air inlet, the small mouth of the air collection hood is connected to the air inlet of the air distribution pipe, and the reflector is fixed on the Inside the air distribution pipe, the reflector is facing the air outlet of the air distribution pipe. The uniform air distribution device of the air-floating drying box of the present invention can further evenly distribute the hot air in the air distribution pipe to ensure that the temperature difference between different nozzles is smaller, and at the same time, it can avoid the excessive temperature difference caused by the high-temperature hot air being directly sprayed from the nearest nozzle. Excessive wind speed in some areas.

Description

technical field [0001] The invention relates to the technical field of coated paper processing equipment, in particular to a uniform air distribution device for an air flotation drying box. Background technique [0002] In the production process of coated paper, it is necessary to use drying equipment to dry the coated paper. At present, the common drying equipment is a gas drying box, and the air flotation drying equipment is the most common. The drying box has an upper box with opposite openings. The upper and lower boxes are equipped with an air distribution device, which is used to evenly distribute the hot air and blow it to the paper surface at a high speed, so that the paper floats and the solvent on the paper surface is dried. . [0003] However, the air flotation drying oven needs to blow high-temperature and high-pressure gas during the drying process. The gas is often not evenly dispersed after entering the air flotation drying oven, and the high-temperature gas ...

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Problems solved by technology

[0003] However, the air flotation drying oven needs to blow high-temperature and high-pressure gas during the drying process. The gas is often not evenly dispersed after entering the air flotation drying oven, and the high-temperature gas blown in will first be ejected from the nearest gas outlet. , while the temperature of the gas discharged from the gas outlet far from the gas inlet will be relatively lower. For a drying box with poor gas distribution effect, the temperature difference at the gas outlet is too large, which will lead to poor drying effect of the drying box, and even cause Excessively high drying temperature will cause damage to the coated paper. At the same time, the poor air distribution effect will also lead to uneven air outlet, which will affect the smooth operation of the paper.

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