Catalyst enhanced airflow dryer works:
Pulsed airflow dryer is characterized by the air flow drying tube diameter alternately reduced and expanded. The use of pulsed airflow drying tube can give full play to the accelerating section has a high heat and mass transfer to strengthen the drying process. The wet material added by the intensifier crushes into the drying tube with a small diameter first and the particles are accelerated. When the accelerated movement ends, the drying tube diameter suddenly expands and the particles enter the drying tube with large diameter by inertia. Particles in the movement due to resistance and continue to slow down, until the end of deceleration. The drying tube suddenly shrinks again, so that the particles are accelerated again, so that the diameter of the tube is reduced and expanded alternately alternately, the moving speed of the particles alternately accelerates and decelerates, the relative speed and the heat transfer area between the air and the particles are relatively large, Thus enhancing the heat and mass transfer rate, while expanding the tube air velocity decreased corresponding increase in drying time.

The outside air after being purified by the gas stove heated to about 500 degrees into the drying tube, wet material from the spiral feeder into the grinder into the airflow drying accelerating tube, the material in the accelerator tube is dispersed by high-speed hot air and suspended in heat In the air, the gas is solidified and moves in parallel. The hot air transfers the heat to the material. After the material absorbs the heat, it exchanges heat and the mass quickly, and the evaporated water enters the air. Therefore, the gas-solid drying Heat and mass transfer process, until the upper part of the drying pipe, the material moisture is close to the critical moisture content (ie, the material is constant drying process is over), the material into the drying slow down, when the mixture into the cyclone, wet air and material separation , The dry material is recovered from the lower part of the cyclone, and the exhaust gas is discharged into the atmosphere by an induced draft fan.

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  Catalyst enhanced airflow dryer