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Drying speed and solubility of air stream spray drying machine
Oct 25, 2018

The air stream spray drying machine belongs to the jet airflow belt drying type when it is operated. It mainly uses hot air to spray the material on the conveyor belt downward or up and down by the slit flow or the hole beam. Since the jet gas belt is as high as 15 m/s or more, Therefore, the heat transfer film for convection heat transfer is extremely thin, the heat transfer coefficient is large, and the drying speed is fast.

When the air stream spray drying machine is mainly used for airtight materials, the jet airflow on it will still return to the top, and the gas sprayed under it will still return below, and then participate in the circulation. For the drying of breathable materials such as coated cloth, it is also suitable for the drying of sheet materials and some special materials. If two-way air jet is used, the material such as the sheet is less deformed after drying. The jet stream can be dried using a heat source such as steam, electricity, hot blast stove, and fuel flue gas.

The airflow spray dryer has a fast drying speed, and the liquid material is effectively increased in surface area after being atomized. In the hot air flow, it can evaporate 95%-98% of the water in an instant, and the drying time takes only a few seconds. The clock is especially suitable for the drying of heat sensitive materials.

The airflow spray dryer has good uniformity, fluidity and solubility, and the product has high purity and good quality. The production process is simplified and the operation control is convenient.

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