Design Methods of Four Technologies for Rotating Flash Drying Machine

The new equipment of rotary flash drying machine adopts a variety of advanced devices, such as the use of a variety of feed equipment, so that the feed continuous stability, the feed process will not produce bridge construction; The special cooling device is used at the bottom of the dryer to avoid the adhesion and deterioration of the material in the high temperature area at the bottom; Adopt special air pressure sealing device and bearing cooling device to effectively extend the service life of the transmission part; The special air distribution device is used to reduce the resistance of the equipment and effectively provide the air volume of the dryer. The drying chamber is equipped with a graded ring and a swirling sheet, which can adjust the fineness and final moisture of the material; The mixing crushing device is used to produce strong shear, blowing and rotating effects on the material; Air filter, cyclone separator, cloth bag dust remover, etc. are used to effectively remove dust and avoid environmental and material pollution. The equipment has strong heat transfer, high production strength, short drying time and short staying time. Then today by the experienced Changzhou region drying equipment manufacturers to introduce to everyone the four major technology design methods of the rotary flash dryer!

The volumetric heat transfer method is the theoretical design method of the rotary flash dryer, but the key volumetric heat transfer coefficient is difficult to determine, so it lacks operability. Evaporation intensity method is an indirect method of volumetric heat transfer method. As long as there are certain experimental data, it can be calculated. It is often used in industrial design. The evaporation intensity method calculates the volume of the drying chamber based on the evaporation volume and evaporation intensity, and then calculates the effective height based on the relationship between diameter and height.

Another method is to calculate the required amount of air through material accounting and heat measurement, and then determine the diameter of the dryer based on the air speed range.

The hot wind tangent direction from the hot wind distributor enters the human drying room through a circular gap. The materials in the drying room are spirally rotated and lifted by the hot wind and the mixer. When studying the fluid motion of smaller particles under centrifugal force field, the influence of gravity is very small and therefore negligible.