The flash dryer is widely used in the dispersion and drying of granular, powdery, paste-like and filter cake-like false agglomerates in the chemical, pharmaceutical, building materials, food, feed, and other industries. This article will describe the specific design process of the spin flash dryer.

  The flash dryer has a variety of feeding devices to choose from, the feeding is continuous and stable, and there will be no bridging phenomenon in the process.

  A special cooling device is installed at the bottom of the flash dryer to avoid material deterioration in the high temperature area at the bottom.

  The special air pressure sealing device and bearing cooling device of the flash dryer can effectively extend the service life of the transmission part.

  The special air distribution device of the flash dryer reduces the resistance of the equipment and effectively provides the air volume of the dryer.

  The drying chamber of the flash dryer is equipped with a grading ring and a swirl plate, and the fineness of the material and the final moisture are adjustable. (For example, the final moisture content of calcium carbonate can be adjusted to ≤0.1%)

  Compared with other drying methods, flash dryers can effectively increase the specific gravity of materials.

  The flash dryer's drying chamber has a high circumferential air velocity and a short material residence time, which effectively prevents the material from sticking to the wall and the deterioration of heat-sensitive materials, and achieves high efficiency, speed, small equipment, and large-scale production.

  The hot air of the flash dryer enters the mixing and crushing drying chamber from the bottom of the dryer through the inlet pipe at a suitable spouting speed, which produces strong shearing, floating, and rotating effects on the material, so the material is subjected to centrifugation, shearing, collision, and friction. The divisor is atomized to enhance the mass and heat transfer. At the bottom of the dryer, the larger and wetter particle clusters are mechanically broken under the action of the agitator, and the particles with lower moisture content and smaller particle size are entrained by the rotating airflow to rise, and are further dried during the ascent. Because the gas-solid two phases make a rotating flow, the inertia of the solid phase is greater than that of the gas phase, and the relative speed between the solid and gas phases is larger, which strengthens the mass and heat transfer between the two phases, so the machine has high production intensity.