Product category:
Conventional Industrial Liquid flowmeters
News Release from: Krohne | Subject: Arc furnace Optiflux units
Edited by the Processingtalk Editorial
Team on 20 November 2007
Optiflux measures arc furnace cooling
water
A steel production plant in the Czech Republic has installed eight Optiflux electromagnetic flowmeters from Krohne to measure the critical flow of cooling water in a 50tonne electric arc furnace
Steel is melted in the furnace from scrap and other materials by generating an electric arc between an electrode and the scrap The upper vessel of the furnace - consisting of wall elements, door and a swing roof - is a steel structure
This article was originally published on Processingtalk on 14 Aug 2008 at 8.00am (UK)
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To prevent it being destroyed by the enormous heat, it has to be kept cool by an intricate and expensive cooling system.
The individual elements of the upper vessel contain closely-packed chambers and pipes which have cooling water flowing through them.
The flow volume is approximately 150 to 180 litres of water per minute for every square metre of area to be cooled and it is essential that there is a continual flow of the right volume and temperature of water.
The cooling must be continuous even in the event of a power failure, so emergency generating sets and high-level service tanks are provided to ensure the supply of water.
The absolute reliability of the flow measurement is vital to ensure the correct operation of the cooling system.
When the furnace was re-equipped, a decision was taken to install eight Krohne Optiflux instruments with different nominal diameters.
These provide real-time measurement of flow in various parts of the cooling system, allowing operators to ensure the temperature of the furnace components remain within the safe limits.
The sturdy construction of the Optiflux flowmeters makes them particularly suitable for the tough working conditions on the electric arc furnace.
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