Wilmar International Ltd. was founded in 1991 and has its headquarters in Singapore. Their business activities consist of the cultivation of palm tree plantations, the production and refining of vegetable oils, the production and refining of sugar, the production of special quality vegetable fats, oleo-chemical products and biodiesel. Wilmar owns more than 450 production locations.
In Rotterdam Wilmar has a large refinery for vegetable oils. The refining process uses industrial filter plates, also called ’leaf filters’. These filter plates become highly contaminated with bleaching earth among other things, which has a negative effect on the capacity and the quality of the entire refining process.
To clean these plates professionally and effectively, Wilmar commissioned Gröninger to build a stainless steel cleaning booth to ensure fully automatic cleaning of the filter plates. In the past these plates were ’boiled’ in hot water and steam, but the new booth now ensures a much faster cleaning process.
The cleaning system cleans a leaf filter using hot water at 80°C, a dose of an alkaline chemical and a working pressure of 200 bar. Depending on the level of contamination the cleaning only takes between 15 and 30 minutes. In short, the advantages of this system are obvious:
1.Reduced cleaning times
2.Lower energy costs
3.Consistent cleaning quality (compared to the manual hand gun cleaning).
