Has anyone worked with molten steel slag before?

[haydenle]

I have been given the project of designing a runner system for molten steel slag. The assumed temperature is around 3000-4000 F. Right now, I am just assuming that the flow would be similar to concrete. Any help on this matter would be greatly appreciated.

 

[swall]

I worked in an iron foundry and observed the flow of the slag frequently. It flows better than concrete--more like a high viscosity newtonian fluid.

 

[EdStainless]

It is stickey and stringy, but the properties depend on the composition. Some of it is almost like foam, aome is more like mud.
Are you to design a replacement system? Is there any way for you observe something in use?

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[swall]

Yes,stringy and sticky like molasses or honey.

 

[haydenle]

My first idea was to make runner system that runs about 15 feet and elevation of about 7 feet. This leads to the pit on the lower level. However, I am not sure if the slag will make it that far. Whether it solidifies itself or having to high of viscousity and goes no where. I know if we are producing high carbon steel it does not flow as well, kind of like candle wax. On low carbon, I was told it flows similar honey. Also, we add a material called "Accutherm" to help the heat from being dissipated from the steel. This doesn't help the flow either. Yes, I am designing a replacement system. Thank you guys for you advice and comment.

 

[YYS]

For most steelmaking slags, if its chemical composition is known, it is possible to find its viscosity for a given temperature range in many references. Compare the viscosity value of your slag with that of other fluid you are familiar with will tell you how it will flow.

 

[andrewjmorin]

WayneLee,

Did you go to U of I in the Early 90's?

(sorry for the off-topic, I just owe a guy named 'Wayne Lee' an apology...)

-andy

 

[haydenle]

andrew

No, this is not my real name, my real name is Hoang Le. Wayne Lee is easier to pronouce and if I was given a american name, then this would be it.

 

[EdStainless]

I recall that are additives that are put in after the slag is dumped to change it's texture. I believe that it is mostly to make it easier to crush, but it may also have to do with reducing sticking.
I can't find the information, but then it isn't my area.

= = = = = = = = = = = = = = = = = = = =
Rust never sleeps
Neither should your protection

http://www.trent-tube.com/contact/Tech_Assist.cfm