Spin flash dryer new equipment using a variety of advanced equipment, such as the use of a variety of charging device, the charging is continuous and stable, the feeding process does not produce bridge phenomenon; the bottom of the dryer using special cooling device, avoids the material occurred in the high temperature zone at the bottom of wall sticking and metamorphic phenomenon; using a special pneumatic sealing device and bearing cooling device, effectively prolong the transmission part of the service life of the wind; the special equipment, reduce equipment resistance, and provides effective treatment of air dryer; drying chamber is provided with a grading ring and swirl plate, can adjust the fineness and water content; by mixing and crushing device, have strong shearing, blowing floating and rotating effect of material by air; cyclone separator, filter, bag filter, effectively remove dust, avoid environmental pollution and material. The device has high heat transfer and heat transfer, high production intensity, short drying time and short material residence time. So today by the rich experience in Changzhou drying equipment manufacturers to everybody introduce process design method of spin flash dryer!

First, the determination of drying room

Of spin flash dryer processing part of the material of the evaporation intensity and volume heat transfer method is the theory of spin flash dryer design method but the most critical volume heat transfer coefficient is difficult to determine, so the lack of operability. Evaporation intensity method is an indirect method of volume to the thermal method, as long as there is a certain experimental data can be calculated, industrial design is often used in the method. The evaporation intensity is calculated according to the volume of the drying chamber, and the effective height is calculated according to the relationship between the diameter and height.

Two, the diameter of the drying room

Another method is through the material balance and heat balance calculation is used to calculate the amount of air required, according to the diameter of the air velocity to determine the scope of the dryer.

Three, the height of the dryer and grading size

Tangent direction through the annular gap into the drying room for people from hot air distributor of hot air, the materials of the drying chamber in hot air blowing function to send and agitator promoting villainous spiral rotating upward motion. The effect of gravity on the motion of a fluid in a centrifugal force field is very small, so it can be ignored.

Four, the application of spin flash dryer

The operating conditions of the part of spin flash dryer, the upper part of the drying chamber is provided with a graded ring and its role is mainly the larger particles or not dry material and qualified products separation, stand in the drying chamber can effectively guarantee the product particle size and moisture content. Replacement of the grading ring with different sizes can meet the requirements of product size. Cold wind protection is provided at the bottom of the cone bottom hot air population to prevent the material from overheating and the high temperature air contact. The drying system is closed, and the dust is not leaked, the production environment is protected, and the safety and sanitation are operated under the micro negative pressure.