Annual report 2007 - Magnitogorsk Iron & Steel Works ...
Annual report 2007 - Magnitogorsk Iron & Steel Works ...
Annual report 2007 - Magnitogorsk Iron & Steel Works ...
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28<br />
Description of Key Production Divisions<br />
MMK’s technological process encompasses all the production stages, from ore mining to downstream steel<br />
processing.<br />
Mining and Ore Dressing Division<br />
The Company’s Mining and Ore Dressing Division includes the following subdivisions: mines for producing iron<br />
ore, dolomite and limestone, an ore dressing plant, a crushing and calcining plant, an ore preparation plant, and a<br />
sintering plant consisting of 13 sinter machines and 2 sinter stabilization units. The annual capacity of the sintering<br />
plant is 11 m tons of sinter.<br />
Coke and Chemical By-Products Division<br />
MMK has the largest coke and chemical by-products operation among Russian steel companies which consists<br />
of nine coke-oven batteries with a total capacity of 5.7 million tonnes.<br />
Besides coke-oven batteries, the Division comprises a coal preparation shop, a chemical products processing<br />
shop, a gas treatment shop and a coke gas treatment plant which is unparalleled in the world in terms of its<br />
capacity ( 240,000 m3/h).<br />
Blast Furnace Division<br />
The BF Division includes eight blast furnaces with the annual capacity of about 10 million tonnes of hot metal.<br />
As part of the Blast-Furnace Division’s modernization programme, one blast furnace was equipped with a bell-less<br />
top charging device in 2006. In <strong>2007</strong>, 2 more bell-less charging devices were installed and put into operation in two<br />
blast furnaces. It is planned to install bell-less charging devices in all of MMK’s blast furnaces.<br />
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<strong>Steel</strong>-Smelting Division<br />
The <strong>Steel</strong>-Smelting Division of MMK consists of the BOF and EAF Shops.<br />
The BOF (Basic Oxygen Furnace) Shop consists of three BOF converters, each with a capacity of 3.43 m tpy, steel<br />
secondary treatment and refinement equipment, and four continuous casting machines.<br />
The EAF (Electric Arc Furnaces) Shop includes two 2-million tpy EAF’s, steel secondary treatment and<br />
refinement equipment, and three continuous casting machines. Besides, the EAF Shop includes a twin-bath<br />
steel-smelting furnace.<br />
Rolling Division<br />
MMK produces the following long products: debars, wire rod, heavy-gage wire, assorted sections and others.<br />
In 2006, MMK commissioned a state-of-the-art complex for the production of long products which includes<br />
three new section mills with a total capacity of 2.010 million tpy.<br />
Mill Production capacity, ktpy<br />
170 mm mill 690<br />
370 mm mill 560<br />
450 mm mill 760