FIELD: metallurgy, namely ore reducing furnaces, particularly improved operational reliability of self-firing electrodes at long time idling periods of furnaces for optimal setting of their operation mode.
SUBSTANCE: method comprises steps of controlling heat condition of bath of furnace; measuring nominal electric current of electrode, thermal e.m.f. of electrode-ground circuit; determining initial heating up current for further changing electric parameters according to desired program. In order to realize it, temperature of furnace bath inner wall is measured and temperature of electrode working surface at nominal electric current is detected. Initial heating up electric current is determined by means of mathematical expression.
EFFECT: improved technological and economical factors of ore furnace operation, enhanced strength of electrodes due to high reliability of estimation of their thermal state and providing optimal heating up mode of furnace after idling period.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DETERMINING PARAMETERS OF HEATING OF ORE-HEATING FURNACE AFTER IDLING PERIOD | 1992 |
|
RU2009422C1 |
| METHOD OF CONTROLLING PARAMETERS OF ARC FURNACES | 2019 |
|
RU2731711C1 |
| METHOD OF MONITORING CARBONIZATION PROCESS OF A STARTING ELECTRODE OF ORE-SMELTING FURNACE | 1991 |
|
RU2009421C1 |
| METHOD OF PREPARATION OF CLOSED ORE-SMELTING FURNACE FOR MAKING FERROALLOYS | 1994 |
|
RU2114362C1 |
| REGULATION METHOD OF MELT LEVEL IN BATH OF ORE-THERMAL FURNACE | 2008 |
|
RU2376540C1 |
| METHOD OF LENGTH GAUGING OF ELECTRODE WORKING PART IN CLOSED ORE-SMELTING FURNACE | 1991 |
|
RU2007055C1 |
| METHOD OF DETERMINING TEMPERATURE | 0 |
|
SU1747945A1 |
| DEVICE FOR SLAB SURFACE TEMPERATURE TESTING IN HEATING FURNACE | 0 |
|
SU1804600A3 |
| METHOD FOR CONTROLLING PHOSPHORUS PRODUCTION PROCESS IN ELECTROTHERMIC FURNACE | 1994 |
|
RU2081818C1 |
| METHOD OF DETERMINATION OF HEAT-TRANSFER COEFFICIENT OF THERMOCOUPLE SENSOR | 1992 |
|
RU2011979C1 |
