Biwater Treatment - Products
Coarse Screen
Products
Rotating Bar Interceptors
Coarse Screen
Grit Removal
Tank Scrapers
Aerators - Horizontal Rotor
Aerators - Vertical Shaft
•Medium Speed
•Slow
Speed
Tertiary Treatment
Package Plants
Coarse Screen |
|
 |
Key Features: • Self cleaning • Inclined front rake • Bar spaces 12-50mm • Deep channel application • Sprocketless return |
| General Description An automatic self-cleaning inclined front raked screen Application For all medium to deep channels, the Infra screen is the ideal choice. The screen is designed to accommodate widths up to 2.5m and depths to 10.0m, where bar spacings are above 12mm Continuous Cleaning Operation The advantage of endless chain screens is that multi-cleaning tine sections can be incorporated on the chain length, giving continuous cleaning of the low levels screen grid. Collected debris is carried upwards on the tines, protected by a deadplate to prevent discharge into the downstream flow. The discharge of screenings can be accommodated at any height above the coping level and chain tensioning devices are incorporated within the arrangement. FEATURES Drive: The drive motor is mounted high-up, well above flood level and incorporates torque protection. Material: There is a choice of material - self coloured stainless steel or fully protected carbon steel. Sprocketless Return: Our design of sprocketless return includes a special, adjustable slide, around which the chains change direction, thus removing the maintenance problem of underwater sprockets. Tine Options: Spring loaded tines can be incorporated into the screen to protect the rake gear. |
|
| Detailed Description: The screen raking gear comprises mild steel tines in short replaceable sections. Arranged to enter approximately 25 mm into the screen bars. The channel guide assembly is arranged to allow the tines to drop into the base of the screen at the start of the cleaning cycle, remaining in contact with the screen bars until the discharge point is reached. Above top water level the taper bars would cease, the raking tines carry the screenings along a mild steel beaching plate to the discharge point. At the discharge point the rake tines come into contact with the cleaning arm which pushes the screenings onto the discharge chute, and from here into the screenings trough. No raking gear parts are permanently below water level. When not in use the raking gear stops in the parked position, above coping level, allowing routine maintenance and inspection. At the screenings discharge point, but before the parking point is reached, the tine carrier assembly rides over a latching mechanism which tilts the assembly, to ensure that the tines disengage on the downward cycle. |
 |
| Click here for printable PDF | |
Tony Gillard
Business Development Manager
+44 (0)1706 367555
Reference Sites
• Smurfit Paper Mill, Lancashire
• Bedford WwTW, Anglian Water
• Portsmouth WwTW, South West Water
• Granton, Lothian RC, East of Scotland Water
• Eastbourne MTW, Southern Water
• Preston WwTW, United Utilities
• Iqueqe, Chili
• Ramsgate WwTW, Southern Water
• Daniso Papermill, Lancashire
Biwater
Treatment Ltd Biwater Place, Gregge St, Heywood,
Lancashire, OL10 2DX
T:+44(01706) 367555 F: +44(01706) 365598 e:info@biwater.com
©Copyright Biwater Treatment Ltd
T:+44(01706) 367555 F: +44(01706) 365598 e:info@biwater.com
©Copyright Biwater Treatment Ltd
