The new equipment of the rotary flash Dryer adopts a variety of advanced devices, such as the use of a variety of feeding devices, so that the feeding is continuous and stable, the filling process will not produce bridging phenomenon; the bottom of the dryer uses a special cooling device, to avoid the material in the bottom high temperature area Viscous wall and metamorphism occur; special pressure sealing device and bearing cooling device are used to effectively extend the service life of the transmission part; special air separation device is adopted to reduce the resistance of the equipment and effectively provide the processing air volume of the dryer; drying chamber With grading rings and swirling pieces, the fineness and final moisture of the material can be adjusted; the stirring, smashing device is used to produce strong shearing, blowing and rotating effects on the materials; using air filters, cyclone separators, bag filter, etc. Effectively remove dust and avoid environmental and material pollution. The device has strong mass transfer and heat transfer, high production intensity, short drying time and short material residence time. So today by the experienced Changzhou Fanqun Drying Equipment manufacturers to introduce to you the four rotary flash dryer design methods!
First, the determination of the drying chamber Rotary flash dryer to deal with some of the material evaporation strength, volumetric heating method is a theoretical design method of rotary flash dryer, but in this method the most critical volume heating coefficient is difficult to determine, so the lack of Operational. Evaporation intensity method is an indirect method of volumetric heating method. It can be calculated as long as there is a certain amount of experimental data. It is a method commonly used in industrial design. The evaporation intensity method calculates the volume of the drying chamber based on the amount of evaporated water and the evaporation intensity, and then calculates the effective height based on the relationship between the diameter and the height.
Second, the diameter of the drying chamber Another method is to calculate the required air consumption through material balance and heat balance, and then determine the diameter of the dryer according to the air speed range.
Third, the dryer height and grading particle size Hot air from the hot air distributor into the tangent direction into the drying chamber through the annular gap, the drying chamber of the material under the action of the hot air blowing and the stirrer push for spiral rotation up movement. When studying the fluid motion of smaller particles under centrifugal force, the effect of gravity is very small and therefore negligible.
Fourth, the application of rotating flash dryer Some rotating flash dryer operating conditions, the drying chamber is equipped with a classification ring, its role is mainly to make the particles larger or not dry material and qualified products separated from the drying room can be Effectively guarantees product particle size and moisture requirements. Replace different grading rings to meet product particle size requirements.
The hot air with cone-bottom hot air has cold wind protection to prevent the material from overheating and deterioration due to contact with high-temperature air. Drying system is closed, and operates under micro-negative pressure, dust is not leaked outside to protect the production environment, safety and health.
