The main furnace at work had a runnout the other day, 12' long and at the wide spot about 18" and tapers down to about 4" near the slag off door. The five layers of brick failed and melted threw the 1 1/2"boiler plate on the side of the tub, 150 tons of steel spilled out all over the tilt cylinders and tilt lock cylinders, it took out all the electrical and the hydraulic lines, part of the rocker mechanisms is melted away and the tracks for the tapcar are buried in steel, gonna be a busy week rebuilding it.
We got lucky and had about 12 hours cooling time, if it had happened on dayshift we would have started on it after all the fires were put out and all the steel drained out of the furnace, we cant spray water in the furnace because it will destroy all the brick that is still good, it cost a half million to rebrick the entire furnace so they only do what is nesasary, the cleanup started right away with a 980 cat loader. As soon as it is at a plastic stage we start the cleaning.
It takes about three days to cool down enogh to be able to stand but we dont get to weight for that.
This message has been edited by 62highboy393c on Aug 10, 2012 2:55 PM
It tips one way to dump slag off the top and it tips the other way to dump into a ladle, the ladle is taken to the caster area were it dumps into the molds, we make 40' long 8"x8" builits and run them threw the rod mill, which makes rebar,wire coils,flatbar and angle iron depending what the orders are. nobody was hurt, all accounted for.
This message has been edited by 62highboy393c on Aug 13, 2012 2:29 AM
Almost a monthly occurance at MCC with 11-50T electric arc furnaces.................
August 14 2012, 11:13 AM
.......150T tilters gotta be friggin' huge. I was an Electrical Apprentice while in Hot Metal, building large harnesses after a burn-out or disassembling the burnt conduit/wires, "Hey boy, git your ass in there and fix it, it ain't that hot", lol, Rod.