Della Toffola Wins 2017 IQ Award for Polarcyo
March 1, 2017 -- Come to visit us…..we will be showcasing the ceramic cross filter which is now been integrated in the award winning technology Polarcyo for the continuos tartrate stabilization which enable to clarify and tartrate stabilize wines on demand in one single movement. The often many weeks of preparation is beeing significantly reduced enabling wines to be bottle ready. Continuos tartrate stabilization has been used in northern Europe for decades. This has now been coupled with crossflow which has ceramic membranes allowing to filter wines at cold stability temperatures of -4 -5C°. This evolution and convergence of technologies allows winemakers to reduce the window from post fermentation to bottling and packing, from eight to ten weeks to two or three weeks. The benefits of increasing the speed of post ferment process are cash flow and market access. The system includes a compressor for the cooling liquid, an air called condenser, a plate heat exchanger, a evaporator/ice scraper, crystals reactor with automatic agitator and tartrate diffuser, a crystals recycling circuit by means of a pump, and the ceramic cross flow filter complete with heat exchanger and chiller.
DTX systems have been developed to remove two serious obstacles from modern grape processing: pH correction and the total acidity in wines.
Function of the resins
Cationic resins are used to promote the ionic exchange of the monovalent and bivalent cations contained in the wine (Ca++, K+, Mg++, and Na+, and others) with the H+ ions in the resins, through which the wine that comes into contact with the resin is stripped of these elements and charged with H+ ions.
The main characteristic is that these resins are not selective in regard to the monovalent cations (K+ in particular) and for such reason withhold more or less all the cations in the wine. Because this is a cationic exchange, the cations with lowest electro-negativity are naturally withheld first, and specifically the K+ and Na+ are the first to be exchanged.
The system consists of:
- Feed pump
- Regeneration acid dosing injector
- No. 02 tanks containing the resins
- pH-meters for checks on the conditions of the resins and the pH of the product leaving the system
- Electric modulation valves for flowrate adjustment
- PLC with TOUCH SCREEN for the control of the automatism
The product to be treated passes through a feed pump that drives it into the tank that contains the resins where it undergoes ionic exchange and the cations present in the product are withheld and the H+ ions are released.
The product then flows out of the tank and is sent to the treated product tank.
The system checks the pH value both prior to its injection in the tank and at its outlet; when the difference between these two pH values reaches the programmed set value, resin regeneration begins