Ceramic Ball Mill
Ceramic ball mill linings will eventually wear down and need replacement. Even old pebble mills with Burrstone linings can be relined with high-alumina brick. We tear out and dispose of the old brick, check the steel shell thickness, repair or replace and thin or corroded section and the install the new brick lining.
We use only high quality, fine-grain 90% (or 96%) alumina brick with tongue and groove design. Bricks are secured and grouted with pure Portland cement or two-part epoxy. When it is time to reline a mill that is also a good time to check the bearings and drives components. If the mill is old and has babbitted bearings we can machine the trunions and replace the old friction bearings with sealed roller bearings. We can also rebuild or replaced drive components including ring & pinion gears and reducers and motors.
Repair and Refurbishing Services:
We reline all sizes of ceramic lined ball mills or pebble mills. We can also replace Burrstone linings with alumina brick.
Relining can be performed at your facility or at our works.
Polyurethane and rubber lined mills can be relined only at our workshop.
We use only high quality, fine-grain 90% alumina brick with tongue and groove design.
Bricks are secured and grouted with pure Portland cement. Two-part epoxy can also be used to provide a crevice free milling surface.
Repair or Replace Other Components:
Replace portions of a corroded cylinder
Repair babbitted bearings
Replace Babbitted bearings with roller bearings including machining the trunnions to size
Replace ring & pinion gears and gear reducers or entire drive systems
Alumina Brick Properties:
Mohs Hardness: 8.5-9
Density: 3.5-3.6 g/cc
Apparent Porosity: 0%
Maximum Temperature: 2,292°F
All acids (except hydrofluoric)
All bases – Std. NaOH 25%@ 95°F
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