Uniform gas distribution device of air floating type drying box

Abstract

The invention provides a uniform gas distribution device of an air floating type drying box. The uniform gas distribution device comprises a wind inlet pipe, a wind distribution pipe and a plurality of spraying nozzles, wherein the wind distribution pipe is communicated to the wind inlet pipe, the plurality of the spraying nozzles are arranged on the same side surface of the wind distribution pipein an array manner and are communicated to the wind distribution pipe, the wind distribution pipe comprises a gas collection hood, a gas distribution pipe and a reflecting plate, a wind inlet is formed above the wind distribution pipe, the gas collection hood is fixedly installed on the inner side of the wind distribution pipe, a gas inlet is formed in the middle of the gas distribution pipe, gasoutlet holes are formed in the gas distribution pipe in a length direction in an array mode, the large opening of the gas collection hood is communicated to the wind inlet, the small opening of the gas collection hood is communicated to the gas inlet of the gas distribution pipe, and the reflecting plate is fixedly installed on the inner side of the wind distribution pipe and right faces the gasoutlet holes of the gas distribution pipe. According to the invention, with the device, hot wind can be further uniformly distributed in the wind distribution pipe so as to ensure the low temperaturedifference in different spraying nozzles, and the situation that the temperature difference is too large and the wind speed of the local area is too large due to the direct spraying of the high-temperature hot wind out of the nearest spraying nozzle can be avoided.

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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