In 2010 DLT supplied a 370 tonne capacity strand jack lifting system to BHEL Western Division in India for use in the construction of power stations. The system comprises 2 No DL-S185 strand jacks powered by 2 No DL-L40/1/300/E electrically powered hydraulic power packs for a lifting speed of 20 m/hr and controlled using our DL-M2 pendant control system. The first steam drum was lifted in November 2010, weighing 230 tonnes and lifted through a height of 70m in a single shift (see photos below), for the 2 x 500 kW Steam Turbine Power Station in Mouda. The steam drum was delivered and positioned at ground level directly under final position and then lifted vertically to final height and then transferred from the strand jacks to permanent hangers. This system is scheduled to complete many more boiler drum installations in 2011 and in the coming years.
By April 2011 BHEL had erected 5 steam drums using this equipment, the first two with DLT assistance and the following three on their own. Click here to view their own publication on the use of the system.