ferrosilicon 75
Dangers of stinging fire:
1. When stinging a fire, a large amount of high-temperature hot air is ejected, which causes great heat loss and increases power consumption.
2. Most of the furnace gas is concentrated outside the thorn fire, and very little furnace gas escapes from other parts. The gas permeability is uneven, which is not conducive to the expansion of the crucible, thus slowing down the chemical reaction rate in the furnace.
3. The furnace mouth temperature is high and the operating conditions are difficult.
ferrosilicon powder
4. When the ignition is severe, if the copper tile is close to the material surface, the copper tile or cooling water pipe will be easily burned, causing a thermal shutdown.
5. When the fire is severe, a large amount of silicon monoxide gas escapes, which can easily reduce the silicon content in ferrosilicon.
How to deal with stinging fire:
The ignition phenomenon is an abnormal furnace condition that often occurs in smelting. Dealing with thorn fire is often a difficult operation, and sometimes thorn fire occurs continuously due to incomplete treatment. Therefore, we must first find out the cause of the mountain noise and then deal with it thoroughly, so as to reduce heat loss, reduce labor intensity, and make production proceed smoothly.
1. Take the following methods to deal with thorn fire, which should be combined with the appropriate method of pricking ventilation holes in a timely manner to facilitate increasing ventilation and enlarging the crucible.
ferro silicon lumps
2. If ignition occurs due to sticky material sticking to the surface of the electrode working end, new material should be added after the sticking.
3. If the material surface cone is too pointed and causes irritation, the material should be changed in time, the amount of coke added should be increased, or coke should be added while pounding the furnace.
4. If ignition occurs because the working end of the electrode is too short, discharge the electrode as appropriate.
5. If local ignition occurs due to partial addition of materials, a few ventilation holes should be properly pierced. If it does not work, pick out the sticky materials and push them to the heart of the furnace. After adding the furnace charge, pierce a few ventilation holes.
6. After long-term ignition, the material layer in the ignition area is already very thin. When the material is about to collapse, it should be completely opened and filled with hot materials in the furnace before adding new materials.
