|
contents | news | |||||||||
| Linatex Plant provides top quality sand for RSG  Linatex supplied equipment for the independent, and privately owned Rotherham Sand and Gravel at their flagship site at Scrooby Top, near Bawtry. Planning permission was sought to extend Scrooby Top Quarry. Approval was granted by Nottinghamshire County Council for an estimated 15 years of new reserves on the condition that a new access road was built and the processing plant re-sited at a lower level to reduce its visual impact. The company made the decision to invest in a new processing plant which included a complete new washing and grading plant and an associated sand processing facility, weighbridge, new ready-mixed concrete plant, pre-pack bagging facilities and a new office block.Feeding directly from the wash plant the sand slurry is piped directly to the Linatex sand classification and dewatering plant, capable of processing up to 100 tonnes/hr of -5mm solids in some 600 gal/min of water containing around 10% silt. The plant is configured to produce approximately 65% concrete sand, 30% building sand and 5% waste fines. The -5mm slurry is piped into the centre of a 1.2m diameter S-Type classifier where the graded spilt on the sands takes place. A Linatex 150/125mm Mk111 centrifugal pump powered by a 37kW motor draws the coarse concrete sand fraction from the base of the classifier and feeds it, via 150mm bore pipework to a Linatex HK 150 sand separator for washing and dewatering. Overflow from the separator is piped to a terminating point adjacent to the S-Type classifier, from where it can be discharged to the quarry's silt pond or partially recirculated via the classifier. The coarse sand fraction is discharged to ground stockpile via three sand chutes. The height of the separator tower provides a stockpile capacity of approximately 3,000 tonnes. The overflow from the S-Type classifier is flumed to the centre of a 2.4m diameter feed-regulating sump. A Linatex 150/125mm Mk 111 centrifugal pump powered by a 30kW motor draws the fine sand slurry from the base of the sump and feeds it, via 125mm bore pipe work, to a Linatex HK 125 sand separator which washes and dewaters the fine sand fraction. This separator features an extended section to help retain more sub-micron fines if required. Once again, the fine sand is discharged to a ground stockpile of approximately 3,000 tonnes capacity, while the overflow from the separator is discharged to the silt or partially recirculated via the feed-regulating sump. write your comments about the article :: © 2006 Construction News :: home page |