VERTICAL SCREW SCREEN FOR WASTEWATER TREATMENT PLANTSWe manufacture vertical screw screens from acid-resistant stainless steel, designed for the mechanical separation of solid contaminants from wastewater and water. We select the screen opening size according to the fraction of retained solids within the range of 1 to 10 mm, while the size of the unit is adapted to the wastewater flow rate. The maximum capacity is 40 dm³/s.
The unit is equipped with a shafted screw, a brush system for cleaning the screening surface, a washing system and an integrated dewatering zone. For outdoor installations, the dewatering zone can be equipped with a 0.5–1 kW heating system to protect the unit against freezing.
The vertical screw screen can operate as part of the mechanical wastewater treatment stage. It retains solid contaminants, which are then removed from the screening surface and conveyed by the screw system.
Units of this type can be used, among other applications, in wastewater treatment plants receiving diluted wastewater from combined sewer systems, as well as in industrial installations. They can be selected as part of wastewater treatment plant equipment; depending on the required separation method, an alternative solution may be a rotary drum sieve.
We manufacture the unit from acid-resistant stainless steel. Individual components are selected according to the wastewater parameters and the type of contaminants to be retained.
The main components of the vertical screw screen include:
We select the size of the openings in the screening surface according to the characteristics of the contaminants present in the wastewater. The available range of 1 to 10 mm allows the unit to be adapted to the required degree of mechanical solids separation.
The size of the screen itself is selected according to the wastewater flow rate. The maximum capacity of the unit is 40 dm³/s.
The vertical screw screen is equipped with an integrated dewatering zone for retained solids. This reduces the amount of water remaining in the material discharged from the unit.
For screens installed outdoors, we offer an optional dewatering zone heating system rated at 0.5–1 kW. Its purpose is to protect the unit against freezing during periods of low temperatures.
| Parameter | Value / version |
|---|---|
| Construction material | acid-resistant stainless steel |
| Screen opening size | 1–10 mm |
| Maximum capacity | 40 dm³/s |
| Geared motor power | 1.5 kW |
| Dewatering zone heating power | 0.5–1 kW |
| Screw material | special-grade steel |
| Trough lining | polymer material |
| Dewatering zone | integrated |
| Washing system | yes |
The units we offer can also be used in industrial wastewater treatment plants, including sugar factories, breweries, meat processing plants, poultry and fish processing facilities, fruit and vegetable processing plants, tanneries, textile plants, as well as the paper and wood industries.
The selection of the screening surface size and opening diameter allows the vertical screw screen to be adapted to the wastewater characteristics and contaminant fractions present in a specific installation.
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