Project Description
Background
Steel making is an energy-intensive process. At a tier one integrated steel mill in Jamshedpur, India, the mill energy consumption required for steel production meets with power generation produced at the power houses on site. As their primary fuel sources, this steel mill uses by-product gases from blast furnaces and coke ovens.
What is Blast Furnace Gas?
Blast Furnace Gas (BFG) is the key fuel source used at the combustion boiler to generate steam. This steam is used in various plant processes, as well as the steam generator, to produce electrical power. There are three power houses in the plant, each with five to seven boilers. BFG feed has two issues: a variable incoming flow rate and a low, fluctuating calorific energy constant.
Problem
The key in producing high quality steam is to have minimal process variation of incoming BFG entering the boiler. Furthermore, greater process control enables efficient combustion and boiler product steam pressure – leading to stable-pressured steam.
Unfortunately, even with the use of smart positioners, pneumatic actuators lack precision due to the compressibility of air. REXA Electraulic™ Actuators, however, are able to work through this and provide more precise and accurate performance than pneumatic and traditional hydraulic technologies.
Solution
Check out the full Blast Furnace Gas Pressure Control Application Spotlight below! Be sure to also view our webinar showcasing how our actuation technology can enhance this application’s efficiency.
