Claims
- 1. A procedure for cleaning the anodes of electrolytic tanks, in particular for eliminating the deposits of impurities which adhere to the surfaces of the anodes during the process of producing non-ferrous metals by electrolysis, characterized in that it comprises, in combination, the following stages: a) mechanically breaking the deposits on the surfaces of the anodes; b) detaching and separating the deposits, once broken, from the surfaces of the anodes; and c) subjecting the surfaces of the anodes to a flattening operation; said breaking being carried out by means of closely spaced cutting lines made in the deposits, and said detaching and separating stage being carried out by means of jets of water under pressure incident on the surfaces of the anodes.
- 2. A procedure according to claim 1, characterized in that for the breaking of the deposits two series of cutting lines which cross each other are made in the surface of the anode.
- 3. A procedure according to claim 2, characterized in that cutting lines are made by means of pairs of parallel rotating rollers which are provided on their lateral surfaces with helical cutting grooves, the anode being passed between said rollers, the separation between the grooves of both rollers being maintained approximately equal to the thickness of said anode.
- 4. A procedure according to claim 2, characterized in that phases of breaking and flattening are carried out together by means of two plates provided on one of their sides with fine ribs provided with a free cutting edge, said plates being opposed and pressed at the same time against the surfaces of the anode, one on each side, to simultaneously produce cutting lines in the deposits as well as the flattening of the anode.
- 5. A procedure according to claim 1, characterized in that before the breaking stage the anodes are subjected to an operation of irrigation in order to eliminate acids.
- 6. A procedure according to claim 1, characterized in that cutting lines are made by means of pairs of parallel rotating rollers which are provided on their lateral surfaces with helical cutting grooves, the anode being passed between said rollers, the separation between the grooves of both rollers being maintained approximately equal to the thickness of said anode.
- 7. A procedure according to claim 1, characterized in that phases of breaking and flattening are carried out together by means of two plates provided on one of their sides with fine ribs provided with a free cutting edge, said plates being opposed and pressed at the same time against the surfaces of the anode, one on each side, to simultaneously produce cutting lines in the deposits as well as the flattening of the anode.
Priority Claims (1)
Number |
Date |
Country |
Kind |
9302030 |
Sep 1993 |
ESX |
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Parent Case Info
This is a division of application Ser. No. 08/261,402, filed Jun. 17, 1994.
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Number |
Name |
Date |
Kind |
3501795 |
Jasberg |
Mar 1970 |
|
4406753 |
Blake et al. |
Sep 1983 |
|
4595421 |
Redhead et al. |
Jun 1986 |
|
4903520 |
Hukkanen et al. |
Feb 1990 |
|
Foreign Referenced Citations (4)
Number |
Date |
Country |
0068855 |
Jan 1983 |
EPX |
0084521 |
Jul 1983 |
EPX |
3812850 |
Apr 1988 |
DEX |
1449545 |
Jan 1974 |
GBX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
261402 |
Jun 1994 |
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