Roto-Sieve rotating drum screen (wastewater treatment - mechanical pretreatment - water filtration - screening technology - particle separation) :
Benefits using Roto-Sieve drum screens in wastewater treatment applications
There are many advantages using Roto-Sieve rotating drum screens in wastewater treatment applications, especially in the preliminary treatment traject.
Roto-Sieve drum screen : a short description
A rotating drum screen separates solid particles and fibres from liquids by screening. The drums screens are based on proven technology, with a self-cleaning function, offering excellent results with minimal maintenance. With high operational reliability, a long service life and low energy consumption, Roto-Sieve drum screens are a proven good investment. Due to its internal feed and circular perforations, Roto-Sieve offers the best separation that can be achieved mechanically. It has been shown in practice that a fibre or hair has a very small chance of orienting itself at a right angle and against the water current, so that it can pass through a round hole.
Roto-Sieve rotating drum screen : operating principle
Roto-Sieve drum screens consist of a perforated drum (1) with internally fixed screw (2), which transports the separated particles out of the drum. The drum rotates by drive belts (3) and is driven by a cog gear motor (4). Incoming liquid is fed into the drum through an inlet pipe (5), which distributes the water over a large area of the drum’s interior. During passage through the drum, the liquid is screened through the drum’s perforations and collects in the trough (6) underneath. Separated particles are transported out of the drum through the screenings outlet (7). Dewatering continues throughout transport in the drum. To prevent clogging of the unit’s perforations, all drum screens are fitted with a rotating brush (8) and a spray header with spray nozzles (9). Roto-Sieve drum screens are completely encased in removable splash guards (10) and equipped with a ventilation exhaust (11) to improve the working environment.
Roto-Sieve rotating drum screen : benefits and technical features
- minimal maintenance
- high operational reliability
- high degree of separation
- extended life-time
- low energy consumption
- cost saving
- good utility in many applications
- increased performance of water treatment processes
Roto-Sieve rotating drum screen design
As standard, Roto-Sieve drum screens are manufactured in five models for various flows, in stainless steel or acid-proof steel. For all models, splash guards are made in stainless steel covers. Brushes are manufactured in heat resistant material. Standard drum perforations are 0.8-1.0-1.5–2.0-3.0 mm and the smallest perforations are 0.6 mm. Most models are supplied with standard overflow system.
Roto-Sieve rotating drum screen : process benefits
- enhances process efficiency, for instance in wastewater treatment plants
- reduces need for cleaning
- easy maintenance
- reduces operating cost of the subsequent stages in the wastewater treatment process
Worldwide several thousands of Roto-Sieve rotating drum screens have been installed, enhancing the wastewater treatment process in production plants as well as in municipal wastewater treatment installations. Roto-Sieve rotating drum screens have been succesfully implemented in all kinds of industries, such as breweries, municipal wastewater treatment plants, the vegetable processing industry, the potatoe processing industry, bottling rooms, the coffee-roasting industry, the animal feeding industry, slaughter houses, chicken slaughter houses, the shipping industry, the textile industry, the sugar industry, papermills, the fish industry, the dairy industry, the plastic processing industry, recycling companies, etc.
Your Benelux (Belgium, Grand Duchy of Luxembourg, the Netherlands) distributor : Task Environmental Engineering.
It goes without saying that you can always obtain spareparts for your existing Roto-Sieve rotating drum screen (eg purchased in the past from Roto-Sieve Belgium in Vilvoorde). Also for Roto-Sieve rotating drum screens from the nineties, spareparts remain available directly from stock. Most spareparts are easy to replace. However, our technician is always at your disposal for a thorough checkup of your Roto-Sieve or replacement of spareparts. The Roto-Sieve rotating drum screens have an extended life-time. A good maintenance inspection of your Roto-Sieve will even increase the expected life-time of the drum screen. Your distributor for spareparts in the Benelux (Belgium, Grand Duchy of Luxembourg, the Netherlands) : Task Environmental Engineering. Contact us (preferably with your machine number at hand: 10-xxxx) : we take care of the rest.
How it works : the movie