Development of an ice-blast cleaning process for heavily soiled hard surfaces in industrial, commercial and public areas
AiF 14143 N
In many industrial, commercial and public areas floors and other hard surfaces are soiled with various kinds of dirt. Depending on the properties of the respective surfaces and soil components, the resulting soilings can be removed with high effort only. In the case of floors, e.g. porous and structured surfaces are problematic, in the case of soilings oils, varnishes (metal processing, automotive industry), polymers, rubber abrasion (e.g. fork-lift trucks in industrial areas, hangars for airplane maintenance), residuals of production (e.g. foods, chemicals, pharmaceuticals) or chewing gum (traffic routes) are critical. Cleaning enterprises are increasingly assigned to remove such soilings. These enterprises are asked to remove the problematic soils quickly, effectively and economically. A big part of the surfaces which have to be cleaned are inaccessible or complex so that commonly used cleaning machines can not be applied economically.
Furthermore, also in the case of surfaces which are accessible for cleaning machines, expensive additional work can be necessary. In principle, the use of the ice-blast technology is a solution. This technology creates ice particles from water and applies them by means of compressed air onto the surfaces. Within the research project a mobile ice blast system was developed in cooperation with cleaning enterprises. This mobile system is able to meet different cleaning requirements by modification of variable parameters as air flow rate, pressure and kind of nozzles. In the case of heavily soiled hard surfaces or hygiene requirements different cleaning auxiliaries or disinfecting agents can be added.
Within practical tests the ice blast system was tested in different industrial, commercial and public areas on different kinds of practically relevant hard surfaces and soilings. The attainable cleaning performance and the performance per time unit were calculated with regard to the kind and quantity of practical soilings and different hard surfaces. According to these investigations, the ice blast technology is more economical than all other methods used in practice.
We thank the Arbeitsgemeinschaft industrieller Forschungvereinigungen e.V. (AiF) (Association of Industrial Research Organisations) (AiF-No. 14143 N) for funding these projects through a financial support by the Federal Ministry of Economic Affairs.
Furthermore we would like to thank different member companies for supporting the investigations.
The research report is available on request from FRT.