Advantages: 1, 20% of foreign investment in equipment is imported products, wear-resistant manganese plate manufacture, 3-4 times more wear-resistant than ordinary steel. 2, the material initial moisture 15%, final moisture to ensure 0.5-1% or less, is a cement plant slag powder, dry mortar production line and other projects drying the product of choice. 3, than the traditional single cylinder dryer to improve the thermal efficiency of over 40%. 4, fuel applicable anthracite, bituminous coal, coal, oil, gas. Materials can bake 20-40mm following blocks, pellets and powder materials. 5, than monocular dryer to reduce the footprint of about 60%. About 60% lower construction investment, easy installation. 6, seamless wind phenomenon, completely solve the sealing difficulty. 7, the material temperature ≤60 degrees, can be directly feed repository, without injecting cooling shed cooling. 8, the outer cylinder temperature ≤60 °, the exhaust gas temperature <120 degrees, dust removal equipment bag used more than twice as long time. Coal is the single cylinder dryer 1/3, saving 40%, tons of standard coal consumption <9 kg main purposes: three return dryer Schematic three return dryer structure diagram [1] efficiently combined three cylinder drying Dry machine is mainly used for drying certain humidity range of particulate material, such as dry mortar industry with sand, foundry industry with a variety of sand. Blast furnace slag cement building materials industry with. Small size clay, for the chemical industry can not afford to chemical changes, small particles of the material is not afraid of high temperature and dust soiled. Depending on the industry after the final moisture drying material requirements, material moisture content after drying can reach 1-0.5 percent. Material into the drying machine to stick the tube wall and the lifting plate is appropriate. Into the gas temperature dryer heat exchange should not be higher than 750 degrees Celsius, if available at the entrance to the inner tube and the special requirements of high temperature resistant steel plate drying, dryer Yang plate material. Works 1. After drying the moisture content of the material is greater than the prescribed value, the elimination method is to control the production capacity of the dryer, and increase or decrease the supply of heat; 2, rolling circle swing operation of the cylinder, the reason is rolling female connector side of the ring is not clamped, elimination method is to use the pad to make rolling circle and female connectors maintain proper uniform and clamping to prevent tight and prone to accidents; 3, large gear meshing with the pinion clearance is destroyed The reason is a tug wear b c pinion gear wheel wear and wear their elimination method for turning or replacement, you can also install or paired opposite updated according to wear;... 4, whole body vibration, the reason is a tugboat. device is connected with the base is destroyed, eliminating the method is correct tightening joints, it is in the correct position; 5, rolling ring flank wear, the elimination method is based on the degree of wear Toru, turning on the rolling ring or replacement