Dynamic clarifier (flotation unit)

Before the suspended solids are separated by flotation, the juice is treated with enzymes in doses set by a preliminary test and by the characteristics of the juice. It is then saturated with air or nitrogen in a special saturator.

The treated juice is sent to the flotation tanks, where the gas-solid particles, having a lower specific gravity than the juice, tend to separate and rise to the surface.

The machine has a system to regulate the saturation gas and the process flow rate. It can work either by pump-over or by transfer from tank to tank.

Equipment

• Stainless steel centrifugal feed pump, with impeller adapted for vacuum suction.
• 2 pre-filters with removable basket to keep the machine running continuously.
• Pressure switch for automatic stop if the product runs out.
• Sight glass.
• 2 micrometric valves to regulate and balance flow and pressure.
• Pressure gauge group with PED safety valve and vent valve.
• Sample tap.
• Vertical cylindrical tank in AISI 304 stainless steel, with a special internal must-rolling system for better gas absorption.
• Gas injector and diffuser.
• Peristaltic dosing pump with adjustable flow rate.
• Electrical panel on a stainless steel console.