In the industry, high tire retainer pressure and support pad wear is a common maintenance problem, which can be detrimental to the mechanical stability of rotary dryer/kiln. The source of this condition is axial friction between the tire bore and the support pads. This friction occurs when the plane of the tire is not perpendicular to the shell axis, a common occurrence on all types of rotary equipment. The non- obvious and the most damaging consequence of the axial force components between the tire and the shell is wear of the tire support pads. Pressures on the stop blocks is caused by the interaction between the tire bore and the support pads so stop bar loading is always accompanied by wear of the support pads. Support pad wear leads to high tire clearance and creep, high shell ovality, and ultimately refractory failures. Use of EZ LUBE BAR will minimize friction across the support pads, in turn minimizing tire retainer pressure and the risk of support pad and refractory failure. Wear of the support pads and tire bore is also reduced by using EZ LUBE BAR.
In many cases tire retainer pressure is so high that further steps are required to correct this condition. This may require shimming of the trunnion bearings and/or resurfacing of the tire(s) and rollers to correct roller slope discrepancies.
EZ LUBE BAR consists of high viscosity index thickeners with solid graphite and copper film-forming components. EZ LUBE BAR provide an adhesive, high solids film to assure maximum protection from excessive wear, cold welding and galling in an easy to apply form. Compared to other products used for this application, the solids content and lubricant properties are superior, decreasing the amount of our product required for each application.
EZ LUBE BAR is specifically designed for application on the tire retainers, riding rings, and support pads of horizontal calciners, rotary kilns, and rotary dryers. EZ LUBE BARS can be easily inserted between the filler bars where it melts and releases the solid lubricants. The product’s high solids content fills the surface imperfections resulting in a smoother bore surface, lower friction and less wear. The improved lubrication between filler bars and riding rings results in less friction and wear minimizes tire retainer pressure and extends eventual shell and refractory failure due to support pad wear (or high tire creep).