ISSN:
1573-8892
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Conclusions 1. A drastic increase in furnace throughput and an improvement in the production costs picture in the performance of open hearth furnaces can be achieved most effectively by using oxygen predominantly in a stream blown directly into the bath at high intensity, combined with a high rate of charge for the entire furnace burden. 2. As a result of instituting a high rate of charge of the entire furnace burden (250 to 300 tons/h) and high blowing intensity in the oxygen blow of the bath (15 to 17 m3/h ton) at the 250-ton open hearth furnace No. 1 of the Makeev metallurgical plant in 1966, furnace productivity increased 2.5 times in 1966 over the level achieved when oxygen is supplied to the process only through roof lancing, the fuel rate was cut to one-third, the total refractories required was cut 1.5 times, the net costs of the steel made was dropped 0.88 ruble/ton, and annual savings from the introduction of this high-productivity technology were 453,000 rubles. 3. Widespread use of this method for intensifying the open hearth production process will require improving the preparation of iron scrap feed, bringing the bulk density of the scrap up to the 2.5 to 3.0 ton/m3 range, as well as increasing the output of tonnage oxygen plants at metallurgical plants, equipping the furnaces with flue scrubbers, expanding auxiliary sections of the shops, and solving the problem of how to optimize the number of furnaces operating at higher productivity levels in a given shop.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00736863
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