Introduction of carbonized rice husk covering agent

The covering agent mentioned in the title is a kind of refractories. It is a particulate carbonized rice husk covering agent, which includes 44-52% bran shell powder, 29-33% vermiculite, 9-11% cement clinker and 7.8-8.5% cassava flour, also includes 2.5-3.5% expanded graphite. It’s characterized to improve the thermal expansion coefficient of the covering agent.

The particulate carbonized rice husk covering agent is in ball shape, particle size is 3mm-10mm, to ensure the spreadability. This kind of covering agent has quite good coverage density and uniformity of spreading, to guarantee its good insulation effect, which is widely used in small and large Tundish.

It can reduce the rate of liquid steel recycling caused by cold casting and junction plug single-flow phenomena, in that case, it will help improving the steel production efficiency, reducing economic losses. Moreover, it will cause less dust during using, which will help to improve the refractories site operating environment, and also is benefit for the operators’ physical and mental health.
The source : http://www.chinafirebrick.com/Company_News_69.html