| OCR Text |
Show FRED R1 K JOH DO Kl JR. p .. R 17 2002 BEC: Oh, really? FRE: Yes. They started when the basic things were done. But I did ev rything th whole thing, the ventilation system, the whole works. It was strictly my design. Wh n it got built, he asked me what the capacity was and I told him maybe we could get 10,000 pounds a batch out of it and we ended up doing just a little better than that. Then we had a problem with the dross, which is the residue-the slag, if you will-but it's a powder. And also we had to be very careful because part of the process used chlorine, which is a poisonous gas. It had to have a very special ventilation system put out through scrubbers and so forth. Well, we end up with this dross, which we could take out and dump in the back yard, but this stuff had a characteristic that if we didn't cool it enough to start with, it was exothermic; it got hotter. We'd go out there and look at the slag pile, if we wanted to call it that, and we'd break that open and it was cherry red underneath. And so it used to cost them money to get that stuff moved. So I designed a system where we would take the dross-and also it has aluminum globules in it because when it was scraped off some of the aluminum would go with it, in globlets-I designed this system where they dump this stuff into a cooler I designed, a rotary cooler, where we sprayed water on the outside of it, and it had things that it would move the material through it, it was sloped. Going through that, against that cold surface all the time, the stuff would cool below its bad point. Then it would drop it into a mill, a grinding mill, where we'd grind that stuff up in a roller mill. The product would come out of the mill into a bucket elevator, which would take it up, dump it into a triple screen, up over a hopper, come down. And the hopper was high enough you put a dump truck under it. Then this screened material would come down and the dross itself would just go down into the hopper because it was 55 |
