Rotary flash dryer The new equipment uses a variety of advanced devices, such as the use of a variety of feeding device, so that feeding continuously and steadily, the feeding process does not produce bridging phenomenon; dryer at the bottom of a special cooling device to avoid the material in the bottom of the high- The use of special air seal device and bearing cooling device, effectively extend the transmission part of the life; the use of special sub-wind device, reducing the resistance of the equipment, and effectively provides the dryer to deal with air flow; drying chamber Equipped with grading ring and swirl pieces, can adjust the fineness and final moisture content of materials; use of mixing and crushing device, the material produces a strong shear, blowing floating, rotating role; the use of air filters, cyclone, bag filter , The effective removal of dust, to avoid environmental and material pollution. The device heat transfer mass, high strength, short drying time, short residence time of the material. Then today by the experienced Changzhou area drying equipment manufacturers to introduce rotary flash dryer four process design method!

First, determine the drying chamber
Rotational flash dryer is the theoretical method for the design of rotary flash dryer. However, the most important volume heat transfer coefficient is difficult to be determined, so it is lack of maneuverability. Evaporation intensity method is an indirect method of volume heat method, as long as there is a certain amount of experimental data can be calculated, is often used in industrial design methods. Evaporation intensity method is based on evaporation of water and evaporation intensity to calculate the volume of the drying chamber, and then according to the relationship between diameter and height to calculate the effective height.

Second, the drying chamber diameter
Another method is to calculate the required air consumption by material balance and heat balance, and then determine the diameter of the dryer according to the air speed range.

Third, the height of the dryer and grading size
Hot air from the hot air distributor into the tangential direction through the annular gap into the drying chamber, the drying room of the material in the hot air blowing under the action and the propeller for the spiral rotation under the ascending motion. The effect of gravity on the motion of the smaller particles in the centrifugal field is negligible.

Fourth, the application of rotary flash dryer
Part of the rotating flash dryer operating conditions, the upper part of the drying chamber with grading ring, its role is to make the larger particles or not dry materials and qualified products separated in the drying room can effectively guarantee product size and moisture requirements. Replacement of different sizes of grading rings to meet product size requirements. Cone at the end of the Department of hot air with cold protection, to prevent material and high-temperature air contact overheating deterioration. Drying system is closed, but also in the micro-negative pressure operation, the dust is not leaked to protect the production environment, safety and health.