| 摘要 |
<p>1533465 Arc furnace ASEA AB 31 March 1976 [1 April 1975] 12915/76 Heading H5H In order to dry the lining compound 1 filling the space between the externally cooled casing and the electrically conducting electrode 2 of the hearth connection of a D.C. arc furnace, the electrode 2 is provided with a through channel 5 along which heated gas is caused to flow from one end to the other. The electrode may have several parallel channels 5 or may have a common portion and several branches provided with communicating channels. An oil or gas burner 3 within the furnace is the source of heated gas and an ejector provided at 6 increases the gas throughout. The electrode 2 may be tapered from the outside to the inside of the furnace. In use melt from the furnace fills the channel(s) in the electrode and solidifies at the outer end thereof so that the construction is identical with that described in Specification 1,501,207. Several hearth connections may be provided in each furnace.</p> |
