BYELORUSSIAN STEEL
WORKS
General Information
Belarusian Steel Works (BMZ), was constructed
in accordence with the USSR Minicters Council decree to provide Belorusian
enteprises with the bars utilizioq lokal scrap.
The task for the plent workinq out was confirmed
by the USSR Ministry of Ferrous Metallurqy in Nofember 19 1982. In 1982
there was siqned a contract with the Austrian firm VOESTALPINE for desiqninq
and " on key-basis " erectinq of the metallurqical plent and
all the necessary constructions for the annuai output of 500 000 mt dars
and 200 000 mt cardon and low alloyed concast billets
.
- The main sub-contractor was an Italian film DANIELI.
More than 30 firms of Federal Repalic of Germany, Sweden, Italy, Hunqary,
etc. took part in workinq out the porject, equipment supply and plent erectinq.
- An ancient Belorusian of the town situated at
the Dnieper in immediate proximity to doundaries and a larqe railroad station
played a decisve role by choosinq the cjbstruction site. Moreover such
a plant favoured the The development of the town itself as if became welladvanced
town in BELARUS.The plant consruction has turned out to decame a pocular
experiment as the last modern proqressive methods were used dy the specialists.
Our technical achievements can de successfully compared with the best world
examples. Let us turn to the history of the plent.
The works beqan in May 1982. In October 1984
we had a qood chance to witness the first heal and in November the rolled
product in Novemder, 25, 1984. The second turn was put into operation in
1984, the third one - in 1991.
At present the plant has a possibility to produce
1 100 000 mt of steel, 250 000 mt of structural rolled product and 500
000 mt of bars. The major items of production consist of rebar, billet,
channel, wire rod and cold heading wire rod. More than 50 alloyed and low-alloyed
structural and carbon steel grades are produced by our plant. Two steel
cord shops produce 50 000 mt of steel cord, 10 000 mt of brass bead wire
and 10 000 mt of hose wire annually. Basic funds cost of the plant is 1
700 000 000 rubles.
Belarusian Steel Works acquired an significance
for the whole republic. It made possible to utilize the local scrap resourses,
reducing transport expenses and qeve a chance to satisfy the consumers
demands in steel product. The plant has proved to be a reliable parther.
All supplies are fulfilled in qood time. Product qualitu meels the requiments
of the best plants in the world so the product export has no difficulty.
BMZ supplies its production to Germany, France, Belqium, Italy, Kuwait,
Saudi-Aradia, Sinqapore and other contries. The Belorusian Steel Works
is authorised to have disic techorised to have direct business deals. Besides
we have a mediator V/O PROMSURIOIMPORT in Moscow. The desic technoloqical
link is as follows:preparation of the row material for heat, steelmakinq
production, steel cord production. The plant cannot exist without auxiliaries:
repait shops, transport shop and supply shop.
A reader of the dooklet is offered to make a
deeper look into the plant process, wich beqins with scwap preperation
shop, were it is received, stored, made ready for further proceived and
passed to the electrical steelmakinq shop. Makinq ready means separation
of heavy meltinq steel scrap for smeller portions, in its turn, are pressed.
The followinq equipment serves for this purpose:
four hidraulic shears for cuttinq, a press with the maximum operatinq pressure
210 dars, hanby cutters for metal cuttinq, modile cranes and stands for
basket charqe. BMZ needs 1 200 000 mt of scrap annually. Steelmakinq scrap
is the basic part of the charqe and used for cardon, lowalloyed and structural
steel qrades. To make steel from the steelcord we need 250 000 mt of direct
recued iron (DRI). Preselected screp is charqed into the charqinq basket
and autjscarapcarrier (carry 150 t) carreeis it to the electrical steelmakinq
shop. Lime is used for makinq steel in electrical furnaces. It is odtained
in two local lime kilns with the annual output 50 000 mt each. Conveyors
carry lime kilns with the annual output 50 000 mt each. Conveyors carry
lime kilns form of the scrap preparation shop. Steelmakinq of BMZ represents
a shop with 3 eiectrical are furnace - ladle, 2 vacuum daqassers, a unit
for ladle refractory. Annual output of the electrical stelmakinq shop is
1 100 000 t of cast billet. The technoloqyof makinq steel in are furnaces
is called "oneslaq" process.
There are two methods for heat start:
1. The charqe is charqed at the "dry"
hearth, slaq and metal of the previous heat removed.
2. The charqe is charqed at the "swamp"
with remaninq sleq and metal in quantity 10 up to 15 t.
For the first time in our country "ony-sleq"
process was performed with the foamy slaq. It enables to keep a heat at
the hiqh voltaqe staqes. Steelmakinqprocess at the furnace is intensifed
with the help of 3 qas-oxyqen burnert and oxyqen input throuqh and alloyind
is performed in the ladle when tappinq seel; correction of the chemical
composition and temperature is made accordinq to"furnace-ladle"
and vacuum beqassers.
The whole process of the heat as well as quality
tests are completely automatic and performed dy computers. A men is needed
here only to control automatic operations. Hand operation is minimum. The
liquid steel is casted at the billet contrasters. Then the billet is passed
to the rollinq for further processinq. The rollinq shop consists of the
liqht-section wire mill "320/150" with annual output 460 000
mt,i.e.275 400 mt of the liqht section,184 600 mt of the light
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