Reserves of the blast-furnace smelting operation for producing high-quality rolled steel
Short description:
The technology don't requires the capital charges and implemented by entering the pellet of natural compounds of boron into the blast-furnace burden, which during the process of metallurgical treatment pass into the cast iron, steel and rolled product, significantly improving the quality of the latter.
As a result of production at the Sokolov-Sarbaiskoye Mining Production Association and processing at the Magnitogorsk Metallurgical Combine the 500 thousand tons of boron-containing pellets were obtained the following results:
- increase the hot strength of pellets by 2 times,
- reduce the consumption of fluxing stone by 12 %,
- reduce the consumption of bentonite by 2 times,
- reducing the loss of pellets from the ore degradation of 100 tons/twenty-four hours,
- increasing productivity of blast furnaces by 4 %,
- reducing the coke consumption by 5 %,
- increase the production of cast iron of the highest category of sulfur (less than 0,02 %) from 65-70 to 85%,
- reduce the resulfuration velocity in oxygen converter by 5 times,
- savings of lime and dolomite - 4 %,
- growth plasticity (d4) autosteel sheets 08Yu to 3,5-8,7 %,
- growth stamped factor on 25,3-41,0 %,
- growth production of rolled products for extreme difficult rolled-out (EDR) by 2 times (from 32 to 75 %).
Level of readiness:
For the first time in world practice, the proposed method tested in industrial conditions and the new technology have been implemented at the Sokolov-Sarbaiskoye Mining and Industrial Association and the Magnitogorsk Metallurgical Combine.
Availability of patents:
Technology protected by copyright certificates of USSR.
Partners:
Sokolov-Sarbaiskoye Mining and Industrial Association;
Magnitogorsk Metallurgical Combine.
Contacts:
SSE «Zh. Abishev ChMI» RSE «NC CPMRM RK»
Karaganda, 63, Ermekov str.
Tel.: (7212) 43-31-64
Fax: (7212) 43-31-61
E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
