Andreotti Impianti Spa
Dry Winterizing Plants
The purpose of winterizing plant is to remove from the oil those substances which, at room temperature, make oil cloudy as Triglycerides with high melting point and Waxes. Above substances can be removed by filtration after crystallization at low temperature. The filtration cycle is automatically managed through dedicated PLC. Automatic filtration cycle is mainly controlled by: 1) One PLC for automatic control of complete filtration cycle that operates all pneumatic valves and related opening and locking switches, level switches and pressure switches.
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Stand by
- Stand by
- Filling
- Precoating
- Indirect filtration
- Direct filtration
- Emptying
- Cake blowing
- Cake discharge
The PLC controls and allows the automatic passage from one phase to the following, while only one phase that must be authorized by the operator is that of passage from cloudy filtration to clear filtration.
In case of anomalous working, program stops, and calls for operator intervention.
Manual plant operation can be done, and in this case, the operator manages different phases from electric control board by switches selector.
In case of anomalous working, program stops, and calls for operator intervention.
Manual plant operation can be done, and in this case, the operator manages different phases from electric control board by switches selector.
The total automatism is complete with:
- - Complete set of pneumatic control valves with opening and locking stroke ends.
- - Set of pressure switches, electric levels and accessories