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| Number | Title | Issue Date |
| 7047891 | Overfire air port and furnace system An Overfire Air (OFA) port design and method for use in a furnace system is disclosed. The OFA port design effectively reduces the amount of harmful pollutants emitted into the atmosphere upon discharge from an associated furnace. ... | 05/23/2006 |
| 6192810 | Laminar flow air register A register for use in conjunction with kraft recovery boilers or bark-fired boilers utilizes a pair of shaped damper foils to reduce turbulence and induce laminar flow of air from an associated windbox through a port in the boiler. The foils are mounted f... | 02/27/2001 |
| 6178898 | Recovery boiler In a recovery boiler for burning spent liquor of a pulp mill, a combustion chamber has heat transfer walls formed of tubes, at least one vertical heat transfer surface formed of tubes, and superheaters in an upper part of the combustion chamber for recove... | 01/30/2001 |
| 5865130 | Self-cleaning thermal oxidizer An apparatus for self cleaning a thermal oxidizer that is thermally treating and decontaminating gases is disclosed. The apparatus for self cleaning the thermal oxidizer can clean the accumulated dust out from inside the thermal oxidizer without requiring... | 02/02/1999 |
| 5421274 | Coal fired steam generation apparatus with easily accessible coal pipe orifice Apparatus for installation in an associated coal pipe for directing pulverized coal to an associated furnace assembly that includes a housing having an inlet, an outlet, and an access port intermediate the inlet and the outlet. The apparatus also includes... | 06/06/1995 |
| 5339753 | Secondary air nozzle for furnaces The secondary air nozzle for furnaces has a curved base body which is provided with pins for holding a ceramic protective casing. A protective strip which projects radially from the base body is arranged along the longest line of curvature proceeding from... | 08/23/1994 |
| 4823710 | Non-peripheral blowing of oxygen-containing gas in steam generating boilers In a steam generating boiler having a bottom wall supporting a char bed and sidewalls with ports through which air is admitted for combustion of combustible species in the char bed and emanating therefrom, combustion is improved by introducing an oxygen-c... | 04/25/1989 |
| 4681531 | Process and equipment for the thermic conversion of the components of gas currents contaminating the environment A process for thermally converting components of gas currents contaminating the environment and equipment for performing the process. Combustion serving for the primary heat production is performed in the gas current to be converted thermically and in a p... | 07/21/1987 |
| 4517903 | Solid fuel furnace A furnace using pelletized wood as a fuel and a system for controlling the operation of the furnace are described. Pelletized wood stored in a hopper is fed into the combustion chamber of the furnace from an elevated position; and combustion of the pellet... | 05/21/1985 |
| 3990949 | Device for returning remainders from the platform to the interior of a coke oven The arrangement comprises a working member formed by a pair of intercommunicating nozzles of which one nozzle comprises a bellmouth mounted above the oven platform with a certain spacing, facing with its enlarged portion the bottom part of the oven and in... | 11/09/1976 |
