MECHANICAL
SYSTEMS
Mechanical systems are integral to the operation of the EAF and many are inter-related. To gain a better perspective of the importance of various systems in the furnace operation, it is good to step back and evaluate the function of the electric arc furnace itself. The EAF has several primary functions:
Mechanical systems are integral to the operation of the EAF and many are inter-related. To gain a better perspective of the importance of various systems in the furnace operation, it is good to step back and evaluate the function of the electric arc furnace itself. The EAF has several primary functions:
- Containment of steel scrap
- Heating and melting of steel scrap
- Transfer of molten steel to the next processing
stage
It is easy to see that the first
function, scrap containment can only be properly carried out if the furnace
shell is properly maintained. The furnace shell consists of a refractory lined
bottom that helps contain the liquid steel and typically, a water-cooled upper
section that only comes into contact with scrap and slag. Heating and melting
of the scrap are accomplished by supplying electrical energy through the
electrodes and chemical energy through the use of burners and oxygen lances.
Transfer of the liquid steel to the ladle is accomplished by tilting the
furnace and opening either a tapping spout or a bottom tap-hole to allow the
steel to flow from the furnace. It is apparent that many sub-systems come into
play throughout the tap-to-tap cycle. Many of these systems are dependent of
the following systems in order to be able to function properly:
Lubrication System
No comments:
Post a Comment