IP Library Granted Patent US 9,267,215
Granted Patent B2
US 9,267,215 · App. 13/854,231 · Granted Feb 23, 2016

System, method and apparatus for measuring electrolysis cell operating conditions and communicating the same

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Quick Facts
Patent No.
US 9,267,215
App. No.
13/854,231
Granted
Feb 23, 2016
Kind
B2
Abstract

System, method and apparatus for measuring electrolysis cell operating conditions and communicating the same are disclosed. The system includes a selectively positionable member coupled to an analytical apparatus, wherein the selectively positionable is configured to move the analytical apparatus into and out of physical communication with a bath. The system may also include a crust breaker for breaking the surface of a bath and an electronic device for measuring bath level.

Claims (14)

1. A method comprising:

operating a metal electrolysis cell comprising a bath and a selectively positionable member coupled to the metal electrolysis cell;

moving an analytical apparatus using the selectively positionable member from a first position to a second position, wherein in the first position the analytical apparatus is not in physical communication with the bath, wherein in the second position the analytical apparatus is in physical communication with the bath, and wherein the bath has a bath surface and the selectively positionable member comprises an arm having a plurality of independently moveable arm segments including a first arm segment that is capable of rotational movement about a vertical axis with respect to the bath surface, a second arm segment that is coupled to the first arm segment and capable of rotational movement about a horizontal axis with respect to the bath surface, and a third arm segment that is coupled to the second arm segment but not independently moveable with respect to the second arm segment, such that the third arm segment exhibits rotational movement about a horizontal axis with respect to the bath surface when the second arm segment exhibits rotational movement about a horizontal axis with respect to the bath surface;

measuring at least one operating condition related to the bath using the analytical apparatus; and

communicating the operating condition to a host computer through a network.

2. The method of claim 1 , further comprising: detecting a delta between the first position and the second position using an electronic device.

3. The method of claim 2 , further comprising: communicating the delta to the host computer through the network.

4. The method of claim 2 , wherein the analytical apparatus and the electronic device are integrated, and wherein the selectively positionable member, the analytical apparatus and the electronic device are automated.

5. The method of claim 2 , wherein the operating condition comprises bath superheat, bath temperature, bath constituent concentration, bath constituent ratio, and bath level.

6. The method of claim 5 , wherein the metal electrolysis cell is an aluminum electrolysis cell, wherein the bath constituent concentration is the concentration of alumina, and wherein the bath constituent ratio is the ratio of sodium fluoride to aluminum fluoride.

7. The method of claim 1 , further comprising: discharging the analytical apparatus with a discharge member, wherein the discharge member is coupled to the metal electrolysis cell.

8. The method of claim 7 , wherein the discharging comprises: spraying the analytical apparatus with compressed air.

9. The method of claim 1 , further comprising moving the analytical apparatus using the selectively positionable member from the second position to a third position, wherein in the third position the analytical apparatus is not in physical communication with the bath.

10. The method of claim 9 , wherein the first position and the third position are above bath level and the second position is below bath level.

Assignments (8)
RELEASE OF SECURITY INTEREST Recorded Apr 24, 2026
From: SUMITOMO MITSUI BANKING CORPORATION
To: ALCOA CANADA CO.; ALCOA USA CORP.
Reel/Frame 075481/0646 →
PATENT SECURITY AGREEMENT Recorded May 10, 2024
From: ALCOA USA CORP.
To: SUMITOMO MITSUI BANKING CORPORATION
Reel/Frame 067380/0794 →
PATENT SECURITY AGREEMENT Recorded May 10, 2024
From: ALCOA USA CORP.
To: SUMITOMO MITSUI BANKING CORPORATION
Reel/Frame 067380/0803 →
SECURITY INTEREST Recorded May 10, 2024
From: ALCOA USA CORP.
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 067376/0263 →
RELEASE OF SECURITY INTEREST Recorded Sep 28, 2022
From: JPMORGAN CHASE BANK, N.A.
To: ALCOA USA CORP.
Reel/Frame 061558/0257 →
SECURITY INTEREST Recorded Jan 27, 2017
From: ALCOA USA CORP.
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 041521/0521 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 3, 2016
From: ALCOA INC.
To: ALCOA USA CORP.
Reel/Frame 040556/0141 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 25, 2015
From: WANG, XIANGWEN; HOSLER, ROBERT; TARCY, GARY
To: ALCOA INC.
Reel/Frame 036407/0938 →