CLEANING IN PLACE
During the nineties the CIP'able bag filter concept was developed and it is now becoming more and more the norm that these filters are fitted in the exhaust systems from spray dryers, either together with cyclones in series, or as the only means of powder separation and environmental control.
GEA Niro A/S has now developed the next generation of CIP'able / sanitary bag filters, SANICIP™. These filters will give a large number of advantages in the operation of the bag filter itself and the spray dryer in general. The spray dryer will operate more economically with savings in energy consumption, lower noise level, better control of finer particles and higher yield of raw materials, meaning less effluent.
Secondary advantages include reduced space requirements for a plant of the same capacity and less maintenance.
This new bag filter is unique and includes new features such as internal CIP of the bags (patent pending) making it possible to reduce water and chemical consumption and a newly developed purge air system (patent pending) allowing CIP of the clean air plenum of the filter and also reduction in the time it takes to dry out the filter bags.