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Class Information
Number: 266/197
Name: Metallurgical apparatus > Means for treating ores or for extracting metals > By means applying heat to work, e.g., furnace > Shaft-type furnace, e.g., blast furnace
Description: Device comprising a chamber having a substantially vertical axis to which material is fed at an elevated level for gravitation downwardly across a heating surface or through a heating medium.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7473297 |
Vertical shaft melting furnace |
Jan. 6, 2009 |
| 7470310 |
Method and device for producing a static bed |
Dec. 30, 2008 |
| 7282172 |
Vertical shaft melting furnace |
Oct. 16, 2007 |
| 7232542 |
Preheating cold blast air of a blast furnace for tempering the hot blast temperature |
Jun. 19, 2007 |
| 7209871 |
Prediction of cavity size in the packed bed systems using new correlations and mathematical model |
Apr. 24, 2007 |
| 6948930 |
Furnace head or furnace throat seal |
Sep. 27, 2005 |
| 6944930 |
Method for manufacturing low-oxygen copper |
Sep. 20, 2005 |
| 6945775 |
Method and apparatus for heating a slurry to a predetermined temperature |
Sep. 20, 2005 |
| 6936673 |
Anti-bonding methods for blast furnace slag or its grading adjusted slag |
Aug. 30, 2005 |
| 6918760 |
Shaft pre-heater |
Jul. 19, 2005 |
| 6858061 |
Method and device for producing pig iron or liquid steel pre-products from charge materials containing iron ore |
Feb. 22, 2005 |
| 6857872 |
Device for loading a shaft furnace |
Feb. 22, 2005 |
| 6800113 |
Equipment for distribution and feeding of charge and fuel in shaft furnaces of rectangular cross section |
Oct. 5, 2004 |
| 6692688 |
Modular furnace |
Feb. 17, 2004 |
| 6565623 |
Method and apparatus for curing self-reducing agglomerates |
May. 20, 2003 |
| 6555049 |
Steel manufacturing facility and method |
Apr. 29, 2003 |
| 6544468 |
Method for cooling a shaft furnace loading device |
Apr. 8, 2003 |
| 6544470 |
Feeding device for electrical shaft furnaces with an electrode-receiving central tube |
Apr. 8, 2003 |
| 6540958 |
Bell and hopper for shaft furnaces |
Apr. 1, 2003 |
| 6511629 |
Shaft furnace |
Jan. 28, 2003 |
| 6426036 |
Direct reduction device to obtain metal iron with a high content of carbon in the form of carbide |
Jul. 30, 2002 |
| 6403022 |
Device for the direct reduction of iron oxides |
Jun. 11, 2002 |
| 6379421 |
Method and apparatus removing undesirable metals from iron-containing materials |
Apr. 30, 2002 |
| 6342179 |
Furnace for the direct reduction of iron oxides |
Jan. 29, 2002 |
| 6280181 |
Withdrawal device for a shaft furnace |
Aug. 28, 2001 |
| 6273933 |
Method for blowing fine particles containing metal oxide into a reducing gas |
Aug. 14, 2001 |
| 6245124 |
Vertical shaft furnaces |
Jun. 12, 2001 |
| 6230634 |
Method of blowing synthetic resin into a furnace |
May. 15, 2001 |
| 6200522 |
Method and apparatus for smelting iron ore |
Mar. 13, 2001 |
| 6149859 |
Gasification plant for direct reduction reactors |
Nov. 21, 2000 |
| 6146442 |
Apparatus and method for introducing gas into a shaft furnace without disturbing burden flow |
Nov. 14, 2000 |
| 6126716 |
Iron-base scrap preheating apparatus and method |
Oct. 3, 2000 |
| 6090180 |
Cupola emission control system and method |
Jul. 18, 2000 |
| 6086653 |
Smelting-reduction apparatus and method for producing molten pig iron using the smelting reduction apparatus |
Jul. 11, 2000 |
| 6030430 |
Blast furnace with narrowed top section and method of using |
Feb. 29, 2000 |
| 5997596 |
Oxygen-fuel boost reformer process and apparatus |
Dec. 7, 1999 |
| 5965085 |
Apparatus for charging a shaft furnace |
Oct. 12, 1999 |
| 5890889 |
Shaft furnace |
Apr. 6, 1999 |
| 5676908 |
Plate for cooling shaft furnaces |
Oct. 14, 1997 |
| 5673901 |
Device for transporting molten metal in the pouring bay of a shaft furnace and process for operating this device |
Oct. 7, 1997 |
| 5632953 |
Process and device for melting iron metallurgical materials in a coke-fired cupola |
May. 27, 1997 |
| 5503373 |
Shaft furnace |
Apr. 2, 1996 |
| 5398914 |
Molten salt process vessel |
Mar. 21, 1995 |
| 5346183 |
Fumeless cupolas |
Sep. 13, 1994 |
| 5271609 |
Plant comprising a shaft |
Dec. 21, 1993 |
| 5268019 |
Air separation method and apparatus combined with a blast furnace |
Dec. 7, 1993 |
| 5226951 |
Method of starting a plant for the production of pig iron or steel pre-material as well as arrangement for carrying out the method |
Jul. 13, 1993 |
| 5205979 |
Automatic controlling device of burners of a shaft furnace utilizing fuzzy logic |
Apr. 27, 1993 |
| 5009397 |
Plant to be used for metallurgical treatments of metal compounds and/or metal alloys or for producing calcium carbide |
Apr. 23, 1991 |
| 5009398 |
Device for reducing the stresses on a sealing shutter |
Apr. 23, 1991 |
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