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| Number | Title | Issue Date |
| 5700420 | Non-oxidizing heating method and apparatus A non-oxidizing heating method and apparatus in which a non-oxidizing gas of high temperature is continuously generated and supplied into a furnace by changing over a plurality of heat storage type heaters alternately while repeating an operation in which... | 12/23/1997 |
| 5423519 | Regenerative chamber lining and method of installation A continuous checker column is molded and formed in situ inside a regenerative chamber, thereby eliminating the need for large numbers of individual, preformed checker bricks. A plurality of rigid molding rods or flexible cable rods are passed through, or... | 06/13/1995 |
| 5375817 | Hot blast stove and method for constructing a hot blast stove In the construction of a hot blast stove, walls are made of pre-formed and baked bricks. At the joint between two walls, cast joining elements of complex shape are incorporated. The cast joining elements may be cast in situ. This avoids the need for press... | 12/27/1994 |
| 4818844 | Furnace heating A burner is mounted on top of a regenerator by a pipe connector. The combustion chamber of the burner communicates with the furnace interior via a tunnel and with the interior of the regenerator comprises a packing of ceramic material with a tubular casing of ... | 04/04/1989 |
| 4492568 | Process and apparatus for preheating the combustion mediums used for firing blast furnace stoves Combustion air and fuel gas used for firing blast furnace stoves is preheated by utilizing the heat of waste gases resulting from such firing. The combustion air and fuel gas are passed through respective heat exchangers in heat exchange relationship with... | 01/08/1985 |
| 4434004 | Method for recovery and recycling of heat from hot gases in metallurigical processing The present invention relates to a method and an apparatus for the recovery and recycling of heat from hot exhaust gases, specifically from exhaust gases in metallurgical processes and from warm gases having an exiting temperature of below about 800° C. ... | 02/28/1984 |
| 4375956 | Hot blast stove arrangement for a blast furnace In a support construction for a hot blast main which is connected by respective branches to the outlets of a plurality of hot blast stoves of a blast furnace, the main is suspended on each stove by means of a rod system secured to a stiffened transitional... | 03/08/1983 |
| 4369955 | Cupola furnace system A cupola system for production of gray iron employs otherwise wasted heat to preheat fuel, pig iron, flux and compressed air fed into a melting furnace, by diversion of melting furnace exhaust-gases through a preheating furnace containing feeding conduits... | 01/25/1983 |
| 4369954 | Regenerative air preheater with improved insulation between combustion chamber and checker shaft A regenerative air preheater includes a masonry casing having therein a combustion chamber and a checker shaft with checker bricks, and a separating wall between the combustion chamber and checker shaft. A space is provided between the separating wall and... | 01/25/1983 |
| 4235593 | Blast stove A blast stove having adjoining combustion and checker chambers, for use with a blast furnace. A support structure, mounted within the checker chamber, supports tiers of interlocked checkerbricks. The support structure includes vertically extending columns... | 11/25/1980 |
| 4150817 | Mixing chamber A mixing chamber for mixing hot blast exiting from a hot blast stove with cold blast from a supply thereof to provide a uniform blast mixture adapted to be introduced into a blast furnace. The chamber comprises an open ended tubular member defining openin... | 04/24/1979 |
| 4078776 | Support construction for a horizontal conduit, which is connected to a vessel A conduit, specifically a hot-blast main for a blast furnace, is supported on a vessel specifically a hot-blast stove, into which it is connected by a branch, by means of at least one vertical support member and a framework mounted on the vessel and carry... | 03/14/1978 |
| 4054409 | Swirling burners for use in hot blast stoves The swirling burner comprises a vertical combustion chamber and an annular blast member located beneath the combustion chamber and provided with a central cylindrical space and a plurality of alternately superposed fuel gas passages and air passages. Thes... | 10/18/1977 |
| 4022573 | Hot blast stove and method of operation Intercrystalline stress corrosion of the walls of heat exchangers employed to produce hot air for injection into a blast furnace, particularly the wall of the passage interconnecting the combustion and heat exchange chambers, is avoided by eliminating pre... | 05/10/1977 |
| 3966393 | Hot blast stove apparatus A hot blast stove apparatus comprising a hot blast stove having a discharge passage for hot blast gases, and a temperature equalizer material in the passage such that the hot blast gases discharged from the hot blast stove, gradually lowering in temperatu... | 06/29/1976 |
