
Under
the quick development, with open hearth furnaces be obso eted. the
metallurgical industry is stepped to transit into large scale converters.
The slag splashing converter maintenance is, after steel is discharged
from the converter, blow nitrogen gas with oxygen lance & splash
the MgO carying lesidual slag homogeneously to the converter wall.
The layer slag on the wall can protect the furnace lining efficiently.
After utilization of this technique, the American LTV Steel Inc.
has reached furnace campaigns of around 20000 heats. The converter's
operation ratio reaches ratio reaches 97%. This technique is being
introduced in countries & regions like Germany, Korea, Japen,
Taiwan etc.
Many iron & steel enterprises in China is
develiping their slag splashing converter maintenance techinques.
As a result, the furnace campaigns in Taiyuan Steel, Chengde Steel,
Chongqing Steel & Ma'Anshan Steel company are raised respectively
from 1500 heats, 500 heats, 700 heats & 1100 heats to 12000
heats, 1500 heats, 8500 heats & 10200 heats. The all get enormous
economic benefits.
One of the key technologies in the slag splashing
converter maintenance is the proper control on the MgO content in
the furnace slag. Practice proved that to add adequate amount of
calcined magneisite briquette is the most effective method go reach
this target. Therefor our company developed a series of super quality
calcined magnesite briquette for slag splashing converter maintenance
usage, to meet the demand from customers home & abroad. The
specification is as following.
MgO content
|
lg. Loss
|
Bulk Density g/m3
|
residual water
|
size(mm)
|
91% +-1%
|
5% (max.)
|
1.8-2.0
|
1%(max.)
|
0-30mm (acc. to customer's
requirement)
|
72% +-2%
|
25% (max.)
|
1.8-2.0
|
2%(max.)
|
30-60mm (acc. to customer's
requirement)
|
65% +-1%
|
30% +-2%(max.)
|
1.8-2.0
|
3%(max.)
|
30-60mm (acc. to customer's
requirement)
|
It was the cooperation between Luoyang Refractory Material Research
Institute. Wuhan Metallurgical Science & Technology University
& our company that being the first in comestic, deverloped &
presented the slag splashing converter maintenance technique. We
researched to make it fit for each diffierent.
Address: Pailou Town, Haicheng City, Liaoning
Province, China.
Postcode: 114207
Tel: +86 412 6103901
Fax: +86 412 3779797
E-mail: sales@chinarefractories.com
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