The flash dryer is a new type of drying equipment successfully developed by our factory on the basis of introducing and absorbing foreign advanced technology. The flash dryer has advanced technology, reasonable design, compact structure, wide application range, large production capacity, good product quality, and high efficiency. Drying, crushing and screening can be completed in one equipment at one time, eliminating environmental pollution, and the performance of the whole machine is up to International advanced technology level.
The hot air enters the mixing, crushing and drying chamber from the bottom of the flash dryer at an appropriate spouting speed from the inlet pipe, and generates strong shear, collision, and friction on the material to be atomized, which enhances the mass and heat transfer. At the bottom of the flash 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.
The flash dryer has the characteristics of simple structure, convenient operation, small equipment area, low energy consumption, and micro-negative pressure operation without dust flying, etc., which greatly improves the operating environment. Therefore, its scope of application is getting wider and wider.
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