Translate
Inspection Detail
Inspection: 106335979 - Asarco, Inc.
Inspection Information - Office: San Francisco Ro
Site Address:
Asarco, Inc.
Ray Complex
Hayden, AZ 85235
Mailing Address:
P.O. Box 8, Hayden, AZ 85235
Union Status: Union
SIC:3331
NAICS: 0
Inspection Type: Accident
Scope: Partial
Advanced Notice: Y
Ownership: Private
Safety/Health: Safety
Close Conference: 02/15/1996
Emphasis:
Case Closed: 09/19/1997
| Type | Activity Nr | Safety | Health |
|---|---|---|---|
| Accident | 360150718 |
| Violations/Penalties | Serious | Willful | Repeat | Other | Unclass | Total |
|---|---|---|---|---|---|---|
| Initial Violations | 3 | 2 | 1 | 6 | ||
| Current Violations | 6 | 6 | ||||
| Initial Penalty | $12,000 | $140,000 | $12,500 | $0 | $0 | $164,500 |
| Current Penalty | $50,000 | $0 | $0 | $0 | $0 | $50,000 |
| FTA Penalty | $0 | $0 | $0 | $0 | $0 | $0 |
| # | Citation ID | Citation Type | Standard Cited | Issuance Date | Abatement Due Date | Current Penalty | Initial Penalty | FTA Penalty | Contest | Latest Event | Note |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 01001A | Serious | 19100038 A01 | 07/22/1996 | 08/24/1996 | $7,000 | $5,000 | $0 | 08/14/1996 | F - Formal Settlement | |
| 2. | 01001B | Serious | 19100038 A01 | 07/22/1996 | 08/24/1996 | $0 | $0 | $0 | 08/14/1996 | F - Formal Settlement | |
| 3. | 01001C | Serious | 19100038 A01 | 07/22/1996 | 08/24/1996 | $0 | $0 | $0 | 08/14/1996 | F - Formal Settlement | |
| 4. | 01001D | Serious | 19100038 A01 | 07/22/1996 | 08/24/1996 | $0 | $0 | $0 | 08/14/1996 | F - Formal Settlement | |
| 5. | 01001E | Serious | 19100038 A01 | 07/22/1996 | 08/24/1996 | $0 | $0 | $0 | 08/14/1996 | F - Formal Settlement | |
| 6. | 01001F | Serious | 19100038 A01 | 07/22/1996 | 08/24/1996 | $0 | $0 | $0 | 08/14/1996 | F - Formal Settlement | |
| 7. | 01001G | Serious | 19100038 A01 | 07/22/1996 | 08/24/1996 | $0 | $0 | $0 | 08/14/1996 | F - Formal Settlement | |
| 8. | 01001H | Serious | 19100038 A01 | 07/22/1996 | 08/24/1996 | $0 | $0 | $0 | 08/14/1996 | F - Formal Settlement | |
| 9. | 01001I | Serious | 19100038 A01 | 07/22/1996 | 08/24/1996 | $0 | $0 | $0 | 08/14/1996 | F - Formal Settlement | |
| 10. | 01001J | Serious | 19100038 A01 | 07/22/1996 | 08/24/1996 | $0 | $0 | $0 | 08/14/1996 | F - Formal Settlement | |
| 11. | 01002A | Serious | 19100132 A | 07/22/1996 | 08/08/1996 | $5,000 | $5,000 | $0 | 08/14/1996 | F - Formal Settlement | |
| 12. | 01002B | Serious | 19100132 C | 07/22/1996 | 08/08/1996 | $0 | $0 | $0 | 08/14/1996 | F - Formal Settlement | |
| 13. | 01003A | Serious | 19100219 D01 | 07/22/1996 | 08/08/1996 | $5,000 | $2,000 | $0 | 08/14/1996 | F - Formal Settlement | |
| 14. | 01003B | Serious | 19100219 E03 I | 07/22/1996 | 08/08/1996 | $0 | $0 | $0 | 08/14/1996 | F - Formal Settlement | |
| 15. | 02001 | Serious | 19100159 C01 I | 07/22/1996 | 08/24/1996 | $28,000 | $70,000 | $0 | 08/14/1996 | F - Formal Settlement | |
| 16. | 02002 | Serious | 19100159 C01 I | 07/22/1996 | 08/24/1996 | $0 | $70,000 | $0 | 08/14/1996 | F - Formal Settlement | |
| 17. | 03001 | Serious | 19100303 B01 | 07/22/1996 | 08/08/1996 | $5,000 | $12,500 | $0 | 08/14/1996 | F - Formal Settlement |
Investigation Summary
At 4:52 p.m. on January 24, 1996, Employees #1 through #3 were present when a major explosion occurred in an electric slag cleaning vessel at a copper smelting operation. The cleaning vessel was a furnace that used carbon electrodes to heat a molten mixture, separating slag material and copper-containing material. An initial minor explosion may have been caused by removal of the electrodes from the molten mixture, by hydrolyzed water, or by water reacting with the material. The first explosion was probably caused by suspended coke dust, a substance added to the molten mixture within the cleaning vessel. The suspended coke dust then ignited into a second major explosion. Employees #1 through #3 sustained burns from the superheated steam.
Keywords: BURN, FURNACE, DUST, STEAM, EXPLOSION, MOLTEN METAL, CHEMICAL REACTION, COMBUSTIBLE DUST, MECH MALFUNCTION, HIGH TEMPERATURE
| # | Inspection | Age | Sex | Degree of Injury | Nature of Injury | Occupation |
|---|---|---|---|---|---|---|
| 1 | 106335979 | Hospitalized injury | Burn/Scald(Heat) | Occupation not reported | ||
| 2 | 106335979 | Hospitalized injury | Burn/Scald(Heat) | Occupation not reported | ||
| 3 | 106335979 | Non Hospitalized injury | Burn/Scald(Heat) | Occupation not reported |