Steel Mill Operations Question

Discussion in 'Getting Started' started by TruckLover, Dec 5, 2006.

  1. TruckLover

    TruckLover Mack CH613 & 53' Trailer

    :wave: Hey Guys, I was wondering if somebody could help me out.

    Walthers has many kits for the steel mill including the blast furnace, rolling mill, coke oven and quencher, electric furnace, and coke retort.

    My question is what is the difference between the coke oven and coke retort. They sound like they do the same thing, turn coal into coke to be used at the blast furnace and other industries according to the descriptions on Walthers. The coke retort is with the empire gas works series and the coke oven and quencher is with the steel mill series.
  2. doctorwayne

    doctorwayne Active Member

    Well Josh, I never worked in the c(h)oke ovens, so I'm not sure how the constituents of coal are separated in the process. Turning coal into coke is done in the ovens, by heating the coal in the absence of oxygen. The retort would be part of the by-product recovery system, similar to separating the various parts of crude oil in an oil refinery. The various (gaseous) chemical components of the coal that are driven off during the coking process are recovered and then separated for sale or re-use elsewhere. The steel plant where I worked even owned a couple of interchange tankcars that they used to transport benzene, one of the by-products. Another by-product was coke gas, which was distributed via a very elaborate overhead pipe system to other mills, where it was used as a fuel for reheating slabs and ingots. Very corrosive stuff.
    According to a text that I'm reading as I type this, one ton of coal yields roughly the following amount of coal chemicals and coke:
    Blast-Furnace Coke......1,200-1,400 lb.
    Coke Breeze................100-200 lb.
    Coke-Oven Gas............9,500-11,500 cu. ft.
    Tar.............................8-12 gal.
    Ammonium Sulphate....20-28 lb.
    Ammonia Liquor...........15-35 gal.
    Light Oil.......................2.5-4 gal.

    So, the coke ovens make the coke, and the retort is used to capture and refine the by-products created during the coke-making process.

  3. TruckLover

    TruckLover Mack CH613 & 53' Trailer

    Thanks for the info Wayne. WOW, you worked at a steel plant!! That is cool and I bet it was hard work.

    I kinda understand it better, the coke oven turns coal into coke and produces gases that the retort is used for the by-porducts. Well, now that I got that down, I will just stick with the coke oven and quencher kit. Thanks again fo you help :D :D :D

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