Reliable rotary kiln for cement with easy maintenance
Low maintenance, low energy use 2-base rotary kiln
Imagine a rotary kiln for cement designed to completely eliminate the risk of shell constriction and the need for tyre migration monitoring systems. That’s the ROTAX-2®, which suspends the kiln shell inside tangentially suspended tyres on self-adjusting rollers. That means there’s no wear between tyre and kiln, and no need for lubrication. Instead, the drive is connected directly to the supporting rollers, and the kiln rotation is driven by friction between the rotating support rollers and the kiln tyre
The innovative suspension design of the ROTAX-2 means it can offer optimal mechanical reliability compared with traditional rotary kilns. And when it’s time to inspect or maintain the kiln, there are no hidden parts. Everything is visible, for easy inspection and maintenance. And the kiln alignment isn’t affected by the settling of the foundation, which means you don’t have to worry about periodical kiln axis realignment. The lack of a kiln girth gear and the low number of supporting rollers help keeps your maintenance costs low.
The ROTAX-2 is kept in position by an automatic hydraulic thrust device (HTD) that controls the axial motion of the kiln. Our HTD can take up the full axial load of the kiln, meaning that roller skewing is not required to take up axial forces.
A rotary kiln for cement is only as efficient as the seals on its inlet and outlet zones. After all, if false air enters the kiln system, fuel consumption goes up, production output goes down, and operating expenses skyrocket. The ROTAX-2’s impressive graphite seals use a staggered arrangement. Two rows of graphite blocks are held in place with a wire rope system. This means a good, tight seal against the outer air casing. Take note: the relatively slow speed at the kiln inlet cuts down on dust circulation. That means less kilocalorie consumption and easier operations.