Directly Heated Rotary Dryer

The Introduction of Directly Heated Rotary Dryer:

Rotary dryers are suitable for a wide variety of products, ranging from granular, powdered and crystalline materials, through to filter cakes and sludges for the food, chemical and mineral industries.The indirect heated dryer is one of most excellent one.

In the indirect dryer, which is more suited to fine and dusty materials, there is little or no contact between the product and the drying gases since they are heated from the outside, via a stationary jacket fitted with either multiple burners or other external heat source.The directly heated rotary dryer operates on the principle of lifting and showering the product through a hot gas stream moving either in parallel or counter-flow.

Noted for their flexibility and heavy construction, rotary dryers are less sensitive to wide fluctuations in throughput and product size.Furthermore,It is of  greater thermal efficiency and where inertisation is required, recycling of exhaust gases can be used. This can be implemented on all our airstream drying systems and retrofitted on customer's existing drying operations.

Introduction of Rotary Kiln :<a href="http://www.cement-equipment-kf.com" title="Rotary kiln"> Rotary kiln </a>is the main equipment of calcining cement clinker.The drying machines are used to heat solids to the point where a required chemical reaction(s) takes place. The <a href="http://www.cement-equipment-kf.com" title="Rotary kiln"> Rotary kiln </a> is basically a rotating inclined cylinder. Solids retention time in the kiln is an important design factor and is set by proper selection of the diameter, length, speed, slope and internals design. There are two basic types of rotary kilns; direct fired and indirect fired.The dryer is used in the cement plant to calcine high grade cement, at the same time can be used in metallurgy,chemical,construction ect.Our <a href="http://www.cement-equipment-kf.com" title="Rotary kiln"> Rotary kiln </a> system is after technology innovation, being used in the most advanced hydraulic gear wheel device, the metering piston pump of high precision, the high precision control valve and contact graphite blocksealing devices and other advanced technologies. It features in easy to operate and operational safety. Compared with the same specification equipment, the rotary kiln stabilizes the thermal system program and improves the equipment operation rate, with the operation rate increased by 10%, the yield increased by 5% -10% and heat consumption reduced by 15%.Kefan designs and supplies both direct fired and indirect fired rotary kilns for a wide variety of applications. We have supplied over a thousand rotary kilns ranging in size up to 7.6 meters in diameter and 190 meters in length.Therefore, we can provide repair parts to the original tolerances and specifications and take advantage of the latest designs and improvements.