VSS vertical screw screens with compactor are used for solid-liquid separation and combine two operations: filtration and compacting.
They feature a screen basket, that can be made of perforated sheet or wedge wire, that acts as a filter, followed by the tubular transport section that ends with a compacting and dewatering modulus that can be provided with a chute or a bagging system.
Screenings are conveyed by a shafted screw, provided with bolted plastic brushes in the screen basket section, to keep the basket clean, till the compacting dewatering section where both the volume and the weight are reduced (up to 40%).
The machine is usually placed inside a pit of suitable width and suitable connection.
The most common application of this equipment is for pumping station and whenever it is necessary to reduce the installation space.
The machine can be used also for in channel installation; for this propose it features an open basket provided with a special double washing system.
The screen VSS can be manufactured in different combinations of stainless steel and high strength carbon steel, the stainless steel being grade 304; 316 or Duplex, while the spiral can be carbon steel, 304, 316.
Many optional can be added to the basic machine configuration: additional or custom made discharge chutes; washing system for the basket and/or for the transport section.
As standard supply, the compacting modulus is provided with a washing system to eliminate odor problems. Each washing system can be operated manually or with a solenoid valve.
The main advantages of this equipment are the following:
• The high efficiency
• The simplicity
• The extremely simple installation
• The extremely simple maintenance
In the most common installation and operational situation, maintenance consists of brushes replacement after 2 years from installation. Simeco’s unique auxiliary lifting guide rail system allows to simplify this operation and make it possible to be performed on site even from untrained personnel.
Upon request the unit can be supplied provided with a control panel, which can be electromechanical or PLC controlled.