Electrostatic charging of powder causes it to
be attracted to, or repelled from, nearby surfaces or surrounding
particles. This can lead to variations in bulk density, choking
of machines, and a range of other industrial problems.
This project aimed to improve the economic efficiency
of pneumatic conveying, milling and mixing in a test process plant
- a Spanish cement factory - by reducing electrostatic powder adhesion.
New powder categorisation methods were developed and test rigs set
up to model processing machines. Laboratory tests were then repeated
on an industrial scale. The results will enable the European cement,
sulphur, pharmaceutical, food, nuclear, paper, textile and other
industries to locate the causes of electrostatic charge problems,
to quantify them and to deal with them appropriately.
The prime partner, Chilworth, as well
as the other non-manufacturing partners, are now providing consulting
to improve a range of industrial situations. Some of the participants
have gone on to work on other EC projects. Partners say Brite Euram
participation meant enhanced recognition and that without EC funding
the project would not have taken place.