The advantages of ladle nozzle filling sand

Source: | Author:ChangXing Refractory | Published time: 1612 days ago | 835 Views | Share:

Ladle nozzle filling sand has the following advantages：

1. Ladle nozzle filling sand are used in steel tapping hole of large EAF bottom tap hole.
2. Ladle nozzle filling sand developed by our company is adapt to the need of increasing gradually in large-scale furnace in recent years.
3. Ladle filler sand is an ideal product to replace imported products.
4. The steel outflow from electric furnace, put electric fillers in at EBT platform, when the steel stuffing can outflow from steel pore while steel water flow into ladle.
5. Automatic free-opening rate can reach over 95%.

Item

Melting Point

Grain size

Moisture

SiO2

Al2O3

Cr2O3

C content

Siliceous

1730 ℃

0-3mm

≤0.5%

80%

0.8-0.9%

Chrome

1730 ℃

0-3mm

≤0.5%

50%

0.8-0.9%

25-30%

With the high request of good quality of steel molten, it need to make ladle that can be automatic opening. If not, it will need to be burnt through the oxygen gun to assist drainage. If we do that, it will make large quantity of molten steel to take open casting. So that the molten steel will be oxidated 2 times and quanlity is affected. Also it will threaten the safety of equipment and operators.