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Precision Unit Alignment:
The
professionals from RSC correct the alignment of your rotary unit
to properly “float” the vessel between its thrust idlers or
stops, and within industry standards. RSC personnel make the
adjustments, skewing and shimming each trunnion as necessary to
provide good face contact between the unit’s tires and trunnions,
and adjusting the vessel’s “float” for optimum performance.
Precision Unit Alignment is accomplished
in two phases:
1.) Cold
Alignment Phase:
The unit is aligned running at ambient temperature and under
minimal load conditions, with all major adjustments being made
to the unit at that time. This phase of the alignment normally
requires the unit be lifted off the trunnions to add or remove
shims from under the trunnions.
2.) Hot
Alignment Phase:
After the unit has been brought to operational temperatures and
production loads, RSC technicians recheck the unit to verify
proper alignment of the trunnions, validating the “float” of the
vessel and inspecting the face contact between the tires and
trunnions for air gap. Minor corrections are made at this time
to fine-tune the unit’s performance.
Additional Alignment Services:
1.)
Drive Train Inspection: Other Major contributors to
vibration and poor alignment are inspected during the cold
alignment, such as loose anchor bolts, trunnion base assembly
slope, incorrect base alignment, broken or cracked grout, and
alignment of gear reducers, couplings and motors.
2.) Optical Alignment:
RSC offers
an evaluation of the trunnion base assemblies using optical
measuring devices to verify the degree of slope, base elevation,
and alignment between bases in relation to the actual centerline
of the vessel.
3.) Ovality Testing:
On vessels
seeing extreme heat such as kilns, RSC performs an evaluation of
the ovality of the shell assembly. Using optical measuring
devices, Laser equipment and manual recording devices, RSC
determines the actual center point of the shell, degree of flex
in the vessel, and mapping of the actual shell profile in
several locations. RSC verifies the degree of slope on the
vessel, and alignment between bases and in relation to the
centerline of the vessel. A mechanical engineer (PE) is placed
on-site to oversee the testing and provide the results to our
customers. If you are constantly loosing refractory in your
vessel, ovality testing will identify your problems.
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