Three drum dryer drying equipment in the wet material products, the three rotary drum dryer is in monocular rotary dryer based on the improvement of energy-efficient products. After a number of enterprises, the application of a variety of industries, and achieved good results. Three rotary drum dryer improves dryer monocular monocular original internal structure, increase the machine before the wet material to dry and wet material in the machine to extend the drying time, coupled with the seal, moisturizer and a reasonable matching measures to make the dryer production capacity compared with the original single cylinder dryer, increase 50-80%, unit volume evaporation strength up to 120-180kg / m3, standard coal consumption of only 6-8kg / t. Its advanced technology, reasonable operating parameters, the operation is simple and feasible. Can be widely used in various industries for slag, clay, coal, iron, ore, and other mixed materials, construction of dry-mixed mortar, yellow sand, etc. as well as chemical, foundry industry raw materials drying. Three drum dryer performance advantages: 1, Dryer scientific and rational energy efficient. Material of the inner cylinder with the hot gas to the radiation, convection, conduction, heat exchange form, the outer cylinder of heat exchange by conduction, convection and dried form. Dryer high thermal efficiency, energy saving effect is remarkable. After testing, the thermal efficiency of the dryer is about much more than the traditional 50% level. After the device is put into use, economizer effect is significant. 2, the machine uses hot air downstream drying materials and technology, a wide range of applications. It can adapt to the drying clay, coal, slag, iron and other raw materials, but also for a variety of bulk materials drying metallurgical and chemical sectors. Compact structure. Overall level layout, the use of wheel bearing, gear size canceled and replaced by the idler gear, making installation more convenient, more simple, more reliable, higher operating rate. 3, the external surface area of ??the aircraft than monocular rotary dryer reduced by more than 30%, and the outer tube inner cylinder has a thermal insulation effect, the outer tube surface temperature is low, less heat loss in energy efficient, while greatly improving the the working environment and working conditions. 4, a variety of lifting plate design, angular lifting plate and lifting plate thousand words combine to make the material more fully with the hot flue gas exchange, reducing the dryer cylinder of "wind tunnel" generation mechanism. 5, the use of frequency control, adjust the cylinder speed, according to water into the machine, production requirements, with appropriate speed, ensure that it meets the needs of the next process. Automatic temperature control system, make the operation more convenient.