Re: crushing of coke

Coke used in blast furnace is very abrasive in nature. I have just
completed supply of high chrome iron liner plates used in a hopper 
for a steel plant. Earlier high manganese steel was used which would
wear out soon.


"David Deuchar" <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED]>...
> "Jon Juhlin" <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
> > Our company has been asked to quote a cone crusher for use in crushing
>  coke.
> > Maximum feed size of 6" crushed down to 1/2"-. Our main experience is in
> > providing crushers for aggregate production and have no direct experience
> > with coke. I know very little about coke other than it is coal with the
> > volatile components baked out of it for use as a carbon source for steel
> > manufacture. The only crushing related information is that it is not
> > particularly abrasive but rather sticky and plastic in consistency. It has
> > been described as not unlike recycled asphalt from the standpoint of
> > crushing.
> >
> > Any information on crushing coke in general and crushing coke with a cone
> > crusher in particular would be read with great interest. If not too much
> > trouble please copy replies to:
> >
> > [EMAIL PROTECTED]
> > [EMAIL PROTECTED]
> >
> > Jon Juhlin
> >
> >
> 
> I have not used a cone crusher for coke. I know of a rod mill using high
> carbon pearlitic steel rods and a rubber liner. I seem to remember a
> temporary jaw crusher which probably had Hadfields manganese jaws, but I do
> not know if coke would give much workhardening on hadfields manganese. The
> crushing strength is probably known by your customer as it is probably
> important for their customers.
> 
> In general terms coke is easy to crush compared to most rock. It is also not
> very abrasive. Be careful if asked to work with sinter (for iron production)
> as this is very abrasive.