Recent improvements in blast furnace operation within the AHMSA/GAN, Monclova Mexico works

Conference · Fri Jan 01 00:00:00 EST 1993 · Proceedings, Ironmaking Conference; (United States)

OSTI ID:6185578

Morales, J M; Dominguez, H; Geerdes, M

Following the privatization of Altos Hornos de Mexico in November 1991 four areas were chosen to improve blast furnace performance and hot metal costs. These areas included improvement of pellet quality, start of oil-gas co-injection in the blast furnace, improved control of gas flow in the blast furnace and start of monitoring program to predict the remaining life of the hearth of the major blast furnace at AHMSA. The efforts resulted in the following improvements in the first half of 1992: production level increased to 2.4 ton/m[sup 3]/24 hrs; moreover, the annual production record of blast furnace 5 (hearth diameter 11.2 m, 37 ft) set in 1992, was 1.639 mln tonnes; coke rates decreased by 60 kg/tonne, half of which was due to process improvements and the other half to injection of oil; silicon standard deviations decreased from 0.22% in 1991 to 0.20% in 1992; hot metal costs decreased with 10.6%; and the major reline of BF 5 can be postponed by at least 1.5 year.

• OSTI ID: 6185578
• Report Number(s): CONF-9303222-; CODEN: PIRCB9
• Journal Information: Proceedings, Ironmaking Conference; (United States), Vol. 52; Conference: 52. ironmaking conference, Dallas, TX (United States), 28-31 Mar 1993; ISSN 0099-6874
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
BLAST FURNACES
MODIFICATIONS
MEXICO
COKE
COST
FLUID INJECTION
FUEL CONSUMPTION
FUEL OILS
NATURAL GAS
NUMERICAL DATA
PRODUCTIVITY
SERVICE LIFE
SILICON
DATA
DEVELOPING COUNTRIES
ELEMENTS
ENERGY CONSUMPTION
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
FURNACES
GAS FUELS
GASES
INFORMATION
LATIN AMERICA
LIFETIME
LIQUID FUELS
NORTH AMERICA
PETROLEUM PRODUCTS
SEMIMETALS
010500* - Coal
Lignite
& Peat- Products & By-Products