Machinery / equipment
Inspectahire Instrument Company
The Royal Mint has a requirement to undertake a condition appraisal on a retort - a long scroll-type container that forms part of a coin annealing rotary furnace. As a result of the brass annealing process, zinc oxide had gathered inside the machine since it become operational 3 years previously, and output was impacted.
The Royal Mint contacted the OEM of the machine to undertake a camera study inspection and subsequent cleaning and removal of zinc. As the OEM was based overseas this was not a viable option and Inspectahire were asked to provide a solution.
Inspectahire undertook the inspection from the open end of the retort while normal warehouse operations continued to be carried out in the area.
All work was carried out according to The Royal Mint permit to work system at site.
All Electrical equipment was tested by Inspectahire Electrician and verified that it was fit for use.
Inspectahire used a P448 Tractor with P494 Camera, which was energised and tested prior to use.
The Tractor was then inserted into the Retort and carried out a pre-clean inspection up to 19 metres, where the propeller type assembly stopped any further progress of the P448 Camera System.