Inspection and repair of spray dryer for milk powder

In October we were asked to provide access using the V-frame to a spray dryer in Vimmerby, Sweden. One of the larger diary companies in Sweden, producing milk powder for infants, asked us to help provide access for the team of inspectors and welders.

Duration

Only two days were needed for the whole process, starting with setting up the rigging and building up the frame providing access for both Bactoforce who performed the inspection of the dryer and the factory welder who repaired some small defect on the tank and taking down the frame.

Inspection method

After the cleaning protocol (SIB) the inside of the dryer was sprayed with penetrable fluid. With the use of UV-light it’s possible to detect small irregularities. Hanging from one side of the V-frame it’s possible for the inspector to make a 360 degree turn in the tank. With the use of an ActSafe to move up and down it’s possible to spray the entire dryer and check it afterwards with an UV-torch.

Abnormalities are documented and marked by the inspection team so it will be easy for the welder to repair or additional cleaning can be pursued afterwards.