Protein skimmer for water treatment by means of flotation
in sea-water with salinity between 15 to 35‰.
Water and air flow rate can be adjusted independently.
Water and air bubbles flow in countercurrent, suitable for
the operation and optimal mixing of ozone and water.
1. Specifications
Water flow approx. 12 – 24 m3/h
Water volume approx. 280 L
Retention time approx. 1 – 2 min
Air intake flow approx. 6,7 m3/h
Power consumption 1,1 kW
Power supply 1Ph. N PE 230 V
Frequency 50 Hz
2. Dimensions
Diameter 600 mm
Total height 2080 mm
Additionally required free height >300 mm
3. Components
3.1 1 Mixing and reaction tank
Material PE/PP
1 Screw joint for water inlet d 63 mm
1 Butterfly valve at the water outlet d 90 mm
for the manual adjustment of the water level
in the reaction tank to regulate the skimming process.
The butterfly valve is to regulate an optimal skimming
process and not to adjust the complete water process.
Cannot be used as shutoff valve.
(In foam fractionators with an automatic level control
system is this ball valve equipped with a motor).
1 Ascending pipe for the water outlet
with screw joint d 90 mm
The water outlet must discharge into a pressure less
open tank. The water in the outlet may content gas bubbles.
Depending on the operation mode a gas saturation
is possible.
1 Standpipe for water level indication.
1 Screwed coupling for a pressure sensor.
1 Draining valve d 32 mm
1 Water distribution system at the inlet to distribute the water
over the cross section of the reaction tank uniformly.
1 Bubble distribution system near the base to distribute the
bubbles over the cross section of the reaction tank uniformly.
3.2 1 Injection Unit
to suck in the specified air amount and input fine bubbles
in the water flow.
The operation is independently of the water flow through the
protein skimmer.
1 Injector
Material PVC
1 Booster pump installed on a base plate.
All water contacting parts made of plastic.
Pump and motor directly coupled.
1 Airflow meter.
1 Connection for ozone.
3.3 1 Foam Beaker
Diameter 600 mm
Material transparent PVC
coupled with the mixing and reaction tank.
Screws, nuts and washers in stainless steel.
Integrated foam cone and foam tube.
1 Waste water outlet d 75 mm
Waste water has to be discharged pressure less through a
siphon. The height of the siphon should be max. 250mm.
The connections have to be removable for cleaning and
maintenance purposes.
1 Exhaust air connection d 50 mm
The exhaust air has to be discharged pressure less through a
siphon. The height of the siphon should be max. 250mm.
The connections have to be removable for cleaning and
maintenance purposes.
1 Foam beaker lid, screwed.
Screws, nuts and washers in stainless steel.
The foam beaker lid has to be removable for cleaning and
maintenance purposes.
Take account of additionally free height !
3.4 Rinsing System
1 Set of rinsing water nozzles for cleaning the foam beaker and
the outside of the foam tube, to be connected with a tap water
or fresh water supply.
Pressure max. 4 bar.
Connection through ball valve d 25 mm
1 Rotating rinsing water nozzle system for cleaning the inside of
the foam tube (patent pending) with brush for the foam tube
edge, connected ready for operation with the injector pump.
Connection through ball valve d 25 mm
Please note
For the most favourable way of transportation our Protein Skimmers
Model Helgoland might be partly disassembled in our works. They will
have to be re-assembled on the site according to our assembly
instructions.
