Abstract 1. A FROTH APPARATUS COMPRISING SIDE AND BOTTOM WALL MEANS DIFINING A CELL FOR HOLDING A FLOTATION LIQUID TO BE TREATED, FEED MEANS FOR FEEDING SAID LIQUID INTO SAID CELL, DISCHARGE MEANS FOR DISCHARGING SAID LIQUID FROM THE CELL AFTER SAID LIQUID HAS BEEN SUBJECTED TO FLOTATION THEREIN, FROTH REMOVAL MEANS AT THE UPPER END OF THE CELL FOR DISCHARGING FROTH FROM THE CELL, AN UPRIGHT IMPELLER SHAFT EXTENDING DOWNWARDLY INTO THE CELL FOR CIRCULATING THE FLOTATION LIQUID AROUND THE CIRCUMFERENCE OF THE CELL, AND MEANS FOR SUPPLYING GAS INTO SAID CELL IN THE VICINITY OF SAID IMPELLER SHAFT FOR MIXING THE GAS WITH THE FLOTATION LIQUID TO GENERATE IN THE CELL A FROTH ENRICHED WITH A SELECTED COMPONENT OF SAID FLOTATION LIQUID, WHICH FROTH RISES TO THE SURFACE OF THE LIQUID AND IS DISCHARGED FROM THE CELL BY SAID FROTH REMOVAL MEANS, WHEREIN THE IMPROVEMENT COMPRISES: SAID REED MEANS IS A FEED OPENING IN THE SIDE WALL OF THE CELL, DISPOSED CLOSE OF THE BOTTOM WALL THEREOF AND OPENING INTO THE CELL IS A DIRECTION SUBSTANTIALLY TANGENTIAL TO THE DIRECTION OF MOVEMENT OF THE FLOTATION LIQUID IN THE CELL; AND SAID DISCHARGE MEANS IS A DISCHARGE OPENING IN THE SIDE WALL OF THE CELL AT A LOCATION CIRCIMFERENTIALLY SPACED FROM SAID FEED OPENING AND OPENING INTO THE CELL IN A DIRECTION SUBSTANTIALLY TANGENTIAL TO THE DIRECTION OR MOVEMENT OF THE FLOTATION LIQUID IN THE CELL, SAID DISCHARGE OPENING BEING LOCATED ON SAID SIDE WALL AT A POSITION NOT HIGHER THAN THE POSITION OF SAID FEED OPENING.
A FROTH APPARATUS COMPRISING SIDE AND BOTTOM WALL MEANS DIFINING A CELL FOR HOLDING A FLOTATION LIQUID TO BE TREATED, FEED MEANS FOR FEEDING SAID LIQUID INTO SAID CELL, DISCHARGE MEANS FOR DISCHARGING SAID LIQUID FROM THE CELL AFTER SAID LIQUID HAS BEEN SUBJECTED TO FLOTATION THEREIN, FROTH REMOVAL MEANS AT THE UPPER END OF THE CELL FOR DISCHARGING FROTH FROM THE CELL, AN UPRIGHT IMPELLER SHAFT EXTENDING DOWNWARDLY INTO THE CELL FOR CIRCULATING THE FLOTATION LIQUID AROUND THE CIRCUMFERENCE OF THE CELL, AND MEANS FOR SUPPLYING GAS INTO SAID CELL IN THE VICINITY OF SAID IMPELLER SHAFT FOR MIXING THE GAS WITH THE FLOTATION LIQUID TO GENERATE IN THE CELL A FROTH ENRICHED WITH A SELECTED COMPONENT OF SAID FLOTATION LIQUID, WHICH FROTH RISES TO THE SURFACE OF THE LIQUID AND IS DISCHARGED FROM THE CELL BY SAID FROTH REMOVAL MEANS, WHEREIN THE IMPROVEMENT COMPRISES: SAID REED MEANS IS A FEED OPENING IN THE SIDE WALL OF THE CELL, DISPOSED CLOSE OF THE BOTTOM WALL THEREOF AND OPENING INTO THE CELL IS A DIRECTION SUBSTANTIALLY TANGENTIAL TO THE DIRECTION OF MOVEMENT OF THE FLOTATION LIQUID IN THE CELL; AND SAID DISCHARGE MEANS IS A DISCHARGE OPENING IN THE SIDE WALL OF THE CELL AT A LOCATION CIRCIMFERENTIALLY SPACED FROM SAID FEED OPENING AND OPENING INTO THE CELL IN A DIRECTION SUBSTANTIALLY TANGENTIAL TO THE DIRECTION OR MOVEMENT OF THE FLOTATION LIQUID IN THE CELL, SAID DISCHARGE OPENING BEING LOCATED ON SAID SIDE WALL AT A POSITION NOT HIGHER THAN THE POSITION OF SAID FEED OPENING.
Claim 2
Dependent Claim
256 words
A FROTH APPARATUS COMPRISING SIDE AND BOTTOM WALL MEANS DIFINING A CELL FOR HOLDING A FLOTATION LIQUID TO BE TREATED, FEED MEANS FOR FEEDING SAID LIQUID INTO SAID CELL, DISCHARGE MEANS FOR DISCHARGING SAID LIQUID FROM THE CELL AFTER SAID LIQUID HAS BEEN SUBJECTED TO FLOTATION THEREIN, FROTH REMOVAL MEANS AT THE UPPER END OF THE CELL FOR DISCHARGING FROTH FROM THE CELL, AN UPRIGHT IMPELLER SHAFT EXTENDING DOWNWARDLY INTO THE CELL FOR CIRCULATING THE FLOTATION LIQUID AROUND THE CIRCUMFERENCE OF THE CELL, AND MEANS FOR SUPPLYING GAS INTO SAID CELL IN THE VICINITY OF SAID IMPELLER SHAFT FOR MIXING THE GAS WITH THE FLOTATION LIQUID TO GENERATE IN THE CELL A FROTH ENRICHED WITH A SELECTED COMPONENT OF SAID FLOTATION LIQUID, WHICH FROTH RISES TO THE SURFACE OF THE LIQUID AND IS DISCHARGED FROM THE CELL BY SAID FROTH REMOVAL MEANS, WHEREIN THE IMPROVEMENT COMPRISES: SAID REED MEANS IS A FEED OPENING IN THE SIDE WALL OF THE CELL, DISPOSED CLOSE OF THE BOTTOM WALL THEREOF AND OPENING INTO THE CELL IS A DIRECTION SUBSTANTIALLY TANGENTIAL TO THE DIRECTION OF MOVEMENT OF THE FLOTATION LIQUID IN THE CELL; AND SAID DISCHARGE MEANS IS A DISCHARGE OPENING IN THE SIDE WALL OF THE CELL AT A LOCATION CIRCIMFERENTIALLY SPACED FROM SAID FEED OPENING AND OPENING INTO THE CELL IN A DIRECTION SUBSTANTIALLY TANGENTIAL TO THE DIRECTION OR MOVEMENT OF THE FLOTATION LIQUID IN THE CELL, SAID DISCHARGE OPENING BEING LOCATED ON SAID SIDE WALL AT A POSITION NOT HIGHER THAN THE POSITION OF SAID FEED OPENING.