- 13 - bogies or H-beams and load skates; and (3) once at the new site, reversing the process and lowering the tank onto its new foundation. The entire lifting, moving, and lowering process can be completed in 1 week. For a tank with a diameter of 80 feet, a crew of four people can perform the initial lifting process in approximately 8 hours. When relocating tanks using the Watson Air Bag technology, significant damage to a tank is unlikely. Tanks are lifted between 3 and 5 feet above the ground. Although a section of the tank could fall and hit the ground, any damage from such a fall is repairable. In some cases, the cost to move the tank intact is only 30 percent of the cost to cut the tank down and reconstruct it at the new site. 3. Dismantling and Reconstruction API Standard 653 provides procedures for dismantling and reconstructing welded tanks for relocation from their original site. When dismantling the tank, API Standard 653 recommends marking the shell, bottom, and roof plates for easy identification. If properly followed, the specifications of API Standard 653 will produce a tank with an “acceptable appearance and structural integrity”. A crew of 8 to 10 people can dismantle and reconstruct a tank. First, cranes hold the steel plates in place as the tank is cut apart with torches or other cutting devices. Then, thePage: Previous 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Next
Last modified: May 25, 2011