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Spray Dryer Testing, Inspection and Examination

Spray Dryer Testing, Inspection and Examination

What is Spray Drying?

Spray drying is the most widely used industrial process involving particle formation and drying.  It is used for the continuous production of dry solids in either powder, granulate or agglomerate form from liquid feedstock (ie cows).

Spray drying involves the atomisation of a liquid into a spray of droplets and contacting the droplets with hot air in a drying chamber. Evaporation of moisture from the droplets and formation of dry particles proceed under controlled temperature and airflow conditions. The powder is discharged continuously from the drying chamber.

GMP (Good Manufacturing Practise), HACCP programmes and pathogen monitoring are essential for effective food safety programmes.  Routine integrity inspection of the drying chamber that complies with the latest guidelines, directives and legislation is required.

Spray Dryer integrity testing and inspection

Independent Integrity Inspection Limited (INDEi) offers a comprehensive inspection service for the periodic examination and testing of spray dryers, cyclones, fluid bed dryers and bag filter housings.  Using our purpose-built and designed access platform INDEi personnel can carry out a critical examination of the internal surfaces of driers up to twelve-metre diameter without the need to erect expensive temporary scaffolding. 

Our personnel working strictly within the "Working at Height" and "Confined Spaces" legislation can complete a detailed and thorough examination using eddy current, penetrant and visual inspection methods of all seam welds, plate surfaces and suspect areas such as hammer marks and blast doors.


Spray drying integrity testing using access platform

Innovative Access Platform/Gantry

Our access platform and working practise reduce the examination time to less than three days, although emergency inspection and repairs can be carried out in a single day.

The access platform has many advantages over traditional scaffolding methods, such as:

• No risk of damage to the internal surfaces of the spray dryer from scaffold poles.

• No risk of wood contamination.

• No blind spots below or adjacent pole supports

• The inspection platform meets International and European regulations such as BS EN 1808.

INDEi personnel are trained and qualified to PCN, ASNT, CSWIP and overseen by The British Institute of Non-Destructive Testing and The Welding Institute, assuring our clients have total confidence in a professional service.



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ISO 9001 : 2015 registered quality management system.  BSI certificate number FS 510584