References
ANDRITZ METALS offers future-oriented technologies in the cold-rolling, thermal treatment and surface finishing market segments. All required processes come from one supplier – from engineering to start-up. The performance packages cover complete lines as well as special machines. A selection of some highlight projects is provided below.
Jindal stainless steel plant, hot annealing and pickling line
Part of the O P Jindal group, Jindal Stainless Limited (formerly JSL Stainless Ltd.) is India’s largest and the only fully integrated stainless steel manufacturer. ANDRITZ supplied a hot annealing and pickling line and a cold annealing and pickling line. After fill expansion, Jindal’s stainless steel capacity will be about 2.5 million tons per annum.
Salem Steel Plant, hot annealing and pickling line, India
Salem Steel Plant, a special steel unit of Steel Authority of India Ltd., pioneered the supply of wider width stainless steel sheets/coils in India. The plant can produce annealed and pickled austenitic, ferritic, martensitic and low-nickel stainless steel strip from hot and cold rolled material. In September 2008 the “Salem Steel Expansion Project”, containing the ANDRITZ METALS annealing and pickling line, was inaugurated by Prime Minister Mammohan Singh, Congress President Sonia Ghandi, and Steel Authority of India Chairman S.K. Roongta.
Dillinger Huettenwerke, roller hearth furnace
This kind of heat-treatment furnace is a roller hearth furnace with upper and lower heating. During the transport through the furnace the incoming plates are heated from charging temperature up to final temperature. The charging and discharging of the furnace is done by means of a roller bed. The roller hearth furnace having a length of 79.9 m, a width of 5 m and a height of 1.35 m.
Jiangxi Copper, Guixi Smelter, tilting furnace
Supply of a tiltable reverberatory furnace. This kind of furnace is used for melting and refining of different types of copper scrap. At Jiangxi Copper it is used for the production of anode copper, but also FRHC copper and other copper qualities can be produced from copper scrap by fire refining.
JSC Tagil Iron and Steel Works, car bottom pusher-type furnace
Supply of a heat treatment plant for high-speed railway wheels (designed for the heat treatment of 100 wheels per hour in relation to the reference wheel). The furnace plant is designed as car bottom pusher-type furnace.
Mopani Copper Mines, drum-type anode furnace
Supply of two 400 t drum-type anode furnaces used for the production of anode copper from blister copper charged by a ladle and an overhead crane. The anode furnace is equipped with a heavy oil/diesel burner system and a refining system using compressed air and diesel for the oxidation and refining.
Ofar S.p.A, shaft furnace
Supply of two shaft furnaces (furnace height 16 m) for hardening and tempering of shafts with a weight of max. 160 t. The shafts have a diameter of 2.500 mm and a length of 16 m. This vertical tempering furnace is a special construction and equipped with a loosely hanging furnace segment which closes the furnace housing like a door (by pneumatic cylinders) and enables a charging of the material from the side.
Saarschmiede, car bottom forging furnace
Supply of a car bottom forging furnace with regenerative heating for ingots. The heating system has been designed with regenerative burner technology in order to achieve a reduction in energy consumption and an increase of the furnace capacity. Furthermore the emissions of the plant can be reduced considerably. The plant is fired with 2 x 15 pairs of regenerative burners which are horizontally arranged in two levels and placed opposite to each other in the side walls.
Schwermetall, copper shaft furnace
Supply of a shaft furnace for Schwermetall, used to increase the plant capacity by installing additional melting capacity to melt copper cathodes and high purity copper scrap. Additionally it reduces the plant’s operating costs due to lower melting costs for the shaft furnace compared to the traditional induction furnaces. Melting capacity: 15 t/h.
Furnace systems for the copper industry
Vallourec & Mannesmann Tubes, revamping of a rotary hearth furnace
Revamping of the existing rotary hearth furnace at Vallourec & Mannesmann Tubes plant at Düsseldorf Rath. This furnace is designed for heating of ingots which have a temperature of 20 to max. 700 °C. The main feature of the revamping of the existing furnace has been the conversion of a great part of the existing combustion system to a heating with regenerative burners in order to reduce the energy consumption and to increase the furnace output from 130 t/h up to 149 t/h.
DanSteel A/S, double walking beam furnace
Supply of a double walking beam furnace for normalizing of high-grade heavy metal plates. This double walking beam furnace is a special construction of a walking beam furnace achieving a maximum average throughput of 26 t/h. Furnace length is 35 m, maximum furnace temperature 1.050 °C. The transport of the material is carried out by a ceramic lifting system whose sophisticated precision guarantees a nearly scratch-proof transport of the plates.
Boehler Schmiedetechnik, rotary table furnace
Supply of a rotary table furnace for heating of ingots and billets. The rotary table furnace is heated with natural gas and is designed with conventional heating, i.e. central recuperator. The ingots are horizontally charged and heated from charging to forging temperature during their transport through the furnace.
Boehler Edelstahl, rotary hearth furnace for the heating of ingots
Supply of one rotary hearth furnace for the heating of ingots. Furnace performance is 18 t/h. The ingots are horizontally charged and heated from charging to forging temperature during their transport through the furnace. The transport of the ingots through each furnace is done by rotation of the ceramic furnace hearth. The furnace is designed to heat ingots of different lengths and diameters in one or several rows.
Boehler Edelstahl, supply of two double chamber furnaces (with steel bars as final product)
The main feature of this special furnace design is that one double chamber furnace consists of two chamber furnaces which are placed one on top of the other. The high-temperature furnace for hardening is placed at the bottom and the low-temperature furnace for tempering on the top of it. This construction facilitates the transport of the annealing material into the corresponding quenching baths.
Aurubis AG, top blown rotary converter
The TBRC for the Aurubis Hamburg plant is used for the melting and refining of the dried anode slime from the tank house operation to produce raw silver for the further precious metals production. Capacity 30-40 t.
Furnace systems for the copper industry
voestalpine Stahl, continuous galvanizing line n°5, Austria
Commissioned at the end of 2009, this line produces steel strip mainly for the automotive industry. The furnace is composed of highly sophisticated technological equipment, such as a direct-fired furnace and a differential rapid jet cooling system. The annual capacity is around 400,000 to per annum, with a max. speed of 350 m/min.
Tianjin Ansteel Tiantie, continuous galvanizing line, China
The CGL furnace is built for steel sheets of 700 to 1,250 mm in width and 0.25 to 1.6 mm thickness. The process section speed is 180 m/min. The furnace capacity is 320,000 tons per annum. In addition, the furnace uses a special technology which allows the customer to have the flexibility of running the CGL as well as a CAL.
voestalpine Stahl, coil coating line n°2, Austria
ANDRITZ METALS supplied a coil coating line for the production of organically coated steel sheets with a strip thickness of 0.4-2.0 mm and a strip width of 700-1,850 mm. The capacity is around 200,000 to per annum. Commissioning started at the end of 2003.
voestalpine Stahl, hot dip galvanizing line n°4, Austria
The furnace of the hot dip galvanizing line no. 4 enables the customer to manufacture latest high-strength steel grades and to galvanize the strip with the best surface quality. ANDRITZ METALS supplied the mechanical equipment for the entire strip transport. The start of operation of was in April 2007. The capacity is around 450,000 to per annum, with a max. speed of 350 m/min.
Tezcan continuous galvanizing line, Turkey
The furnace consists of a direct-fired furnace and a small radiant-tube furnace section. This allows the customer to produce a very large range of products with a thickness range of 0.25 mm to 3 mm and a width of 800-1,300 mm at a maximum speed of 200 m/min.
Svenskt Stål AB (SSAB), continuous annealing line revamping, Sweden
The first revamp increased the cooling capacity, with installation of the rapid jet cooling system. The second revamp increased the customer’s ability to cool the strip at very high speed thanks to an additional combination zone for heating/cooling. The annual capacity of the furnace is now of 500,000 to per year at 950 °C maximum.
Salem Steel Plant, coil preparation line, India
The complete mechanics and the whole plant layout was planned and executed in solid edge. Start of operation was in August 2009.
Tianjin Ansteel Tiantie, continuous annealing line, China
This continuous annealing line produces a wide range of steel sheets used for home appliances and the automotive industry. The ANDRITZ furnace control and math model system optimizes operations. The line capacity is 730,000 to per annum for a strip width of 700 to 1,600 mm and thickness of 0.25 to 2 mm. The process speed can be up to 420 m/min.
