News
- 17.06.13
Magnezit Group completes repair works of a walking-beam continuous furnace at PJSC “ArcelorMittal Krivoy Rog”
Magnezit Group completed repair works of a walking-beam continuous kiln at section-rolling workshop #1 at “ArcelorMittal Krivoy Rog”, the biggest company of mining and metals production sector in Ukraine.
Successful completion of the important and large-scale project was possible due to long-term experience of Magnezit Group in the field of all-inclusive service of heating units of different type as well as strategic partnership with RATH GmbH, international industrial company providing joint project development for modernization of furnaces of rolling and machine-building production. Repair of the walking-beam continuous furnace is the first practical example of the effective partnership.
“All-inclusive maintenance service of heating units installed at the companies of different sectors is one of the key directions of Magnezit Group development in long-term perspective”, said Sergey Odegov, General Director of Magnezit Group. “The practice is spreading gradually at the territory of Russia and CIS. Today we can offer our partners not just up-to-date technical solutions but the best ways of their implementation taking into consideration all possibilities to optimize the costs”.
Magnezit Group provided “ArcelorMittal Krivoy Rog” with a complete service package from engineering of separate parts for heating units up to delivery of a complete set of materials and equipment, as well as field supervision. The project included repair of walking-beam continuous furnace lining elements: walking and stationary parts of walking hearth, walking and stationary parts of hearth beams, flue ducts. The customer was provided with a working draft of the flue duct lining, a working draft of the walking hearth lining and beams, kneading-and-mixing machinery for castables application. Supervision of lining-installation works was organized. Materials and equipment in full sets were supplied to customer’s warehouse. To fulfill the installation works Magnezit’s experts were sent to Krivoy Rog.
The object of the repair is unique. It is a modern walking-beam heating continuous furnace with walking beams and a walking hearth. It is designed to heat blanks before their rolling on a 150-1 rod mill. In the first part of the furnace there are cooled walking and stationary beams that stretch for 1/3 of the usable hearth length. These beams allow heating of blanks with burners located in the lower zones. The remaining part of the furnace has a walking hearth designed to heat blanks with arc burners of the upper zones. The furnace was installed and lined with materials produced by Calderys (Plibrico) in 1995. Over its operating period there were seven capital repairs (inter-repair time was 1,5-2 years) including partial repair of: skids pipes lining, burner blocks lining, working lining of furnace hearth and flue lining.
Magnezit Group is a world’s leading manufacturer of magnesia products. It is an integrated company that provides a complete cycle of refractories production from raw materials mining up to engineering and maintaining services. Magnezit Group includes production plants and service companies at the territory of Russia, China, Slovakia and Ukraine as well as a wide net of service and sale representatives. Using facilities of our production sites we create modern technological cycles to produce high-quality products that correspond to the highest world standards.
Public joint-stock company “ArcelorMittal Krivoy Rog” is the biggest company of mining and metals production sector in Ukraine. It is unique in its size and capabilities with complete metallurgical cycle including: chemical-recovery, ore-dressing and processing, mine management – underground ore mining and metallurgical production which consists of agglomeration and blast-furnace stage, steel-smelting and rolling stages. The company is specializing in production of reinforcing-bar steel and rods from regular and low-alloyed steel grades. It also produces agglomerates, concentrate, coke, cast iron, steel, rolled section steel, structural shapes and blast furnace slag.