Double-rail overhead travelling crane

1. Open the electrolyte crust. 2. Add the electrolyte of aluminium oxide and fluoride salt into electrolytic bath. 3. Unscrew and tighten a small box jig, lift the anode scrap, then change the new anode. 4. Remove the anode scrap and crusting from anode so as to install new anode 5. Vacuum pumping, TAP, lifting, calculating and display, then implement print. 6. Lifting and installing anode busbar and elevating frame. 7. Complete the installation and maintenance of upper structure of electrolytic bath and lower pot shell and other scattered lifting.