Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Thermal Energy Recovery by Basic Oxygen Furnace Offgas Preheating of Scrap.

Authors
Drost-JJ; Daellenbach-CB; Mahan-WM; Hill-WC
Source
NTIS: PB 234 718 :8 pages
Link
NIOSHTIC No.
10009280
Abstract
The feasibility of basic oxygen furnace (bof) offgas heat recuperation by preheating scrap was investigated on a pilot plant scale by the Bureau of Mines. In this study, offgases generated during the oxygen blowing of a molten pig iron and scrap charge were passed through a static bed of shredded auto scrap. Scrap quantities ranging from 100 to 180 pounds and representing from 22 to 40 percent of the 450-pound bof metallic charge were preheated in this manner. Average scrap bed temperatures of 1,650 deg f for 100 pounds of scrap and 1,150 deg f for 180 pounds of scrap have been achieved during the blows. Compared with cold scrap used in the normal bof practice, it was found that by preheating scrap, usage could be increased by 43 percent. The thermal energy recovered by this preheating method can account for up to 44 percent of the energy necessary to melt the scrap.
Publication Date
19740101
Document Type
IH; Report of Investigations
Fiscal Year
1974
NTIS Accession No.
PB-234718
NTIS Price
A02
Identifying No.
RI 7929
NIOSH Division
TCRC;
Source Name
NTIS: PB 234 718
TOP