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Class Information
Number: 266/173
Name: Metallurgical apparatus > Means for treating ores or for extracting metals > By means applying heat to work, e.g., furnace > Rotary drum-type furnace
Description: Device wherein the heating means includes a barrel-like receptacle within which the work is placed, which receptacle is mounted to continuously revolve about its longitudinal axis while the work is being heated.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7204689 |
Seal structure of solid feeding screw, and method of manufacturing reduced metal using the seal structure |
Apr. 17, 2007 |
| 7160501 |
Method for the salt-free, non-oxidizing remelting of aluminium |
Jan. 9, 2007 |
| 6685466 |
Rotary hearth furnace for producing reduced metal and method of producing reduced metal |
Feb. 3, 2004 |
| 6652802 |
Direct iron and steelmaking |
Nov. 25, 2003 |
| 6379610 |
Apparatus and process for treating a particulate material within a rotating retort |
Apr. 30, 2002 |
| 6251337 |
Apparatus and method for treating a particulate material within a rotating retort |
Jun. 26, 2001 |
| 6241804 |
Process for producing iron briquettes and/or cold iron sponge |
Jun. 5, 2001 |
| 6152729 |
Spray cooled furnace discharge assembly |
Nov. 28, 2000 |
| 5989486 |
Apparatus for removal of the mercury from granulated materials |
Nov. 23, 1999 |
| 5900040 |
Roasting of titaniferous materials |
May. 4, 1999 |
| 5853657 |
Reduced dusting bath system for metallurgical treatment of sulfide materials |
Dec. 29, 1998 |
| 5843204 |
Method for recycling iron and steel industry waste |
Dec. 1, 1998 |
| 5783142 |
Kiln system for treatment of reactive fines |
Jul. 21, 1998 |
| 5766544 |
Process for fluidizing particulate material within a rotatable retort |
Jun. 16, 1998 |
| 5759483 |
Apparatus for treating a particulate material within a rotating retort |
Jun. 2, 1998 |
| 5685524 |
Direct ironmaking or steelmaking apparatus using self-reducing iron oxide pellets |
Nov. 11, 1997 |
| 5616296 |
Waste management facility |
Apr. 1, 1997 |
| 5567380 |
Rotary retort heat treating furnace seals |
Oct. 22, 1996 |
| 5472478 |
Reduction of metal oxides and vessel |
Dec. 5, 1995 |
| 5437707 |
Apparatus for treating iron ore |
Aug. 1, 1995 |
| 5403379 |
Reduction of titaniferous ores and apparatus |
Apr. 4, 1995 |
| 5382002 |
Apparatus for heat treating a particulate material |
Jan. 17, 1995 |
| 5320799 |
Apparatus for continuous copper smelting |
Jun. 14, 1994 |
| 5316719 |
Apparatus for producing a substance utilizing agravic effect |
May. 31, 1994 |
| 5314171 |
Apparatus for the extraction of metals from metal-containing raw materials |
May. 24, 1994 |
| 5261943 |
Method and apparatus for the extraction of metals from metal-containing raw materials |
Nov. 16, 1993 |
| 5219522 |
Method of producing a substance utilizing agravic effect and an apparatus for carrying out same |
Jun. 15, 1993 |
| 5180423 |
Converter and method for top blowing nonferrous metal |
Jan. 19, 1993 |
| 5141208 |
Foundry plant with rotary furnaces and process of operation |
Aug. 25, 1992 |
| 4983214 |
Method and apparatus for direct reduction of metal oxides |
Jan. 8, 1991 |
| 4838934 |
Process for a direct reduction of iron oxide containing materials in a rotary kiln |
Jun. 13, 1989 |
| 4758268 |
Method and apparatus for reclaiming metal values from electric arc furnace flue dust and sludge and rendering residual solids recyclable or non-hazardous |
Jul. 19, 1988 |
| 4728081 |
Incinerating and melting apparatus |
Mar. 1, 1988 |
| 4676824 |
Process for generating heat and producing sponge iron |
Jun. 30, 1987 |
| 4645184 |
Apparatus for preparing binder-free hot-briquets |
Feb. 24, 1987 |
| 4547220 |
Reduction of MoO.sub.3 and ammonium molybdates by ammonia in a rotary furnace |
Oct. 15, 1985 |
| 4515352 |
Rotary furnace used for the production of ferrochromium |
May. 7, 1985 |
| 4469509 |
Process of producing sponge iron by a direct reduction of iron oxide-containing material in a rotary kiln |
Sep. 4, 1984 |
| 4462793 |
Rotary kiln and method of using such a kiln |
Jul. 31, 1984 |
| 4443250 |
Process of producing sponge iron by a direct reduction of iron oxide-containing materials |
Apr. 17, 1984 |
| 4414026 |
Method for the production of ferrochromium |
Nov. 8, 1983 |
| 4389040 |
Apparatus for separating a sponge iron product produced in a rotary furnace |
Jun. 21, 1983 |
| 4389242 |
Interior arrangement for direct reduction rotary kilns and method |
Jun. 21, 1983 |
| 4378241 |
Method for achieving low sulfur levels in the DRI product from iron oxide reducing kilns |
Mar. 29, 1983 |
| 4378244 |
System for coal injection in iron oxide reducing kilns |
Mar. 29, 1983 |
| 4378243 |
System for coal blowing in iron oxide reducing kilns |
Mar. 29, 1983 |
| 4375883 |
System for recycling char in iron oxide reducing kilns |
Mar. 8, 1983 |
| 4373908 |
Kiln shell nozzle with annular fluid delivery |
Feb. 15, 1983 |
| 4373909 |
Gas injecting kiln shell nozzle with particle entry barriers |
Feb. 15, 1983 |
| 4369059 |
Process of directly reducing iron oxide containing materials in a rotary kiln |
Jan. 18, 1983 |
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