JUICE CLARIFICATION USING ROMFIL FLOTATION SYSTEMS: RFS 200 / RFS 300

Scope of Supply

The plant is mounted on a stainless steel frame with wheels and consists of:


• 1 Prefilter
• 2 Circulation pumps
• 1 Dosage pump for the gelatine
  (air drive double membrane pump)
• 1 Dosing unit for air or flotation gas
• 1 Air filter unit - 3 stage including    activated carbon
• 1 Flotation reactor with safety
   valve
• 3 Manometers – membrane type
• 5 Valves
• 1 Sample valve
• 1 Flowmeter for gelatine
• 1 Flowmeter for air
• 1 Electrical panel


Technical Data



Technical Information.

Romfil Flotation Systems are now available in modules of 5, 10, 20 and 30,000Lph. Details of the Flotation process were given in a previous emailer, and are available on request.

Normal techniques of cold settling the juice ex the press for 2-3 days, produces some 25% of the tank volume as settled lees, which are then filtered by an RDV filter. With the RFS, the lees fraction, (as foam on top of the clear juice,) is 3-4% of the juice volume. Thus the volume of feed to the RDV is greatly reduced.

Eg.

Juice Volume-lph Settled Lees-lph
25%
Foam-lph
3.5%
20,000 5,000 700
50,000 12,500 1,750

Flotation Benefits.

1. A big saving in RDV time, with only a fraction of the juice
    volume to be filtered.
2. A big saving in DE purchase and dumping costs.
3. Reduces processing time, because the flotation process
    can begin as soon as the juice is pectin -ve, normally
    1-2 hours after pressing.
4. Less juice waste. The recovered juice from filtration of
    the foam is good quality, allowing it to be recovered and
    fermented.
5. Less energy required, because the juice does not have
    to be cold settled.
6. Can add increased rates of gelatine over the amount
    needed for flotation (0.1%) to get a fining effect.

Several Flotation units have been supplied with repeat orders confirming the claims of this efficient method of juice clarification.