| abstract |
The invention provides a method for controlling LF temperature, which relates to the technical field of steelmaking plants. The method includes: S1: carry out converter tapping alloying and slag washing treatment; S2: carry out temperature measurement of argon station to obtain T argon station ; S3: carry out LF refining, including: S31: carry out temperature measurement of LF entering station to obtain T LF enters the station ; S32: Use the iron pipe to vertically insert the molten steel surface of the ladle, measure the length of the iron pipe sticking slag, obtain the thickness d 0 of the slag layer, add slag material to the LF to make the total thickness of the LF slag layer reach d 1 ; S33: carry out LF Low-grade slag slag and pre-heating, among which, the arc heating amount of pre-heating is determined according to the ΔT argon station to the LF station ; S34: Observe the color of the sticky slag on the iron pipe, and determine the temperature drop of argon blowing; S4: Switch the high-grade main heating feed Electricity, among which, the arc heating amount of the main heating is determined according to the temperature drop of argon blowing and the ΔT argon station to the LF station . In this method, temperature drop correction is performed in the arc heating link, so as to reduce various production accidents caused by temperature out-of-control. |