Inspection Detail
Inspection: 106335979 - Asarco, Inc.
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Inspection Information - Office: San Francisco | ||||
Nr: 106335979 | Report ID: 0935000 | Open Date: 01/26/1996 | ||
Asarco, Inc. | ||||
Ray Complex Hayden, AZ 85235 | Union Status: Union | |||
SIC: 3331/Primary Smelting and Refining of Copper | ||||
Mailing: P.O. Box 8, Hayden, AZ 85235 | ||||
Inspection Type: | Accident | |||
Scope: | Partial | Advanced Notice: | Y | |
Ownership: | Private | |||
Safety/Health: | Safety | Close Conference: | 02/15/1996 | |
Close Case: | 09/19/1997 | |||
Related Activity: | Type | ID | Safety | Health |
Accident | 360150718 |
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 Amount | $0 | $0 | $0 | $0 | $0 | $0 |
# | ID | Type | Standard | Issuance | Abate | Curr$ | Init$ | Fta$ | Contest | LastEvent | |
---|---|---|---|---|---|---|---|---|---|---|---|
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 |
Accident Investigation Summary | ||||||
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Summary Nr: 170993182 | Event: 01/24/1996 | Three Employees Burned When Slag Cleaning Vessel Explodes | ||||
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 | Degree | Nature | Occupation | |||
1 | 106335979 | Non Hospitalized injury | Burn/Scald(Heat) | Occupation not reported | ||
2 | 106335979 | Hospitalized injury | Burn/Scald(Heat) | Occupation not reported | ||
3 | 106335979 | Hospitalized injury | Burn/Scald(Heat) | Occupation not reported |