公开(公告)号：US3632488A

公开(公告)日：1972-01-04

申请号：US3632488D

申请日：1969-01-23

Applicant: REYNOLDS METALS CO

Inventor： DECKER HARVEY DAVID ,  MCGRAW JAMES EDWARD ,  BARBOUR RICHARD R

IPC: C25C3/20 ,  H05B7/156 ,  C22D3/12 ,  B01K3/00

CPC classification number: C25C3/20 ,  H05B7/156 ,  Y02P10/256 ,  Y02P10/259

Abstract: D R A W I N G
A METHOD OF CONTROLLING AN ALUMINUM REDUCTION CELL IS DISCLOSED, IN WHICH THE HEAT FLOW COEFFICIENT FOR THE BATH IS DETERMINED AND USED WITH A DESIRED BATH TEMPERATURE TO CALCULATE THE BATH''S HEAT LOSS ENERGY. CALCULATIONS ARE ALSO MADE OF THE CELL''S POWER REQUIREMENTS FOR PURPOSES OTHER THAN HEATING THE BATH SUCH AS THE ENERGY REQUIRED TO REDUCE THE CELL''S ALUMINA. THE SUM OF THE BATH HEAT LOSS AND OTHER ENERGY REQUIREMENTS IS DIVIDED BY THE CELL''S BASE AMPERAGE TO DETERMINE A SET VOLTAGE AND THE CELL''S ANODE IS ADJUSTED TO KEEP THE CELL VOLTAGE WITHIN PREDETERMINED LIMITS OF THE SET VOLTAGE.