Finger screen puts production on track at Warmwell Quarry
- 16 December 2008
- Company & Industry News
In an effort to improve production even further Warmwell Quarry has recently installed a heavy-duty finger screen into its processing plant. Replacing a Niagara E10 13' x 5' single deck screen the new two-deck screen was supplied by Finedoor.
Owned and operated by Bardon Aggregates, Warmwell quarry is situated near Doncaster with the area being originally worked as several sand and gravel sites. Today the material being processed at Warmwell is fine sand accompanied by a clay residue.
Currently the site operates a wash plant that supplies washed sand to an on-site bagging plant. As clay was something of an issue within the production of this material the decision to replace the old screen was made with a view to improve the general process whilst simultaneously improving the quality of the end product.
After a short consultation process Finedoor supplied a 4 x 1.5 m - two-deck screen with a heavy-duty finger deck assembly. Designed to fit into the existing structure the top deck utilises 800 mm long tines pitched at 50 mm centres providing a 40 mm aperture. In contrast the lower deck side is of tensioned woven wire slotted mesh with a 25 x 50 mm aperture to the bottom deck. Driven by an 11 kW TEFC squirrel cage motor the heavy-duty screen is constructed of 10 mm thick side plates and is of two bearing construction with grease lubrication. The specification also included balance weight guards, helical steel coil springs to isolate vibration and feed and discharge trays. Installation was completed over a short shutdown period and full production was attained within the desired window.