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| Number | Title | Issue Date |
| 7549382 | On-line coal flow control mechanism for vertical spindle mills An improved apparatus for on-line coal flow control in vertical spindle mills comprising a plurality of independently adjustable flow control elements and positioning rods that adjust the positioning of those flow control elements. Each flow control element is posit... | 06/23/2009 |
| 7426891 | System for converting animal waste into an environmentally friendly energy source A simplified energy producing system that utilizes natural animal waste and/or by-products and converts such waste into a usable clean energy source. The system incorporates a grinder/dehydration system, waste transport, a holding container, fuel air regulator, and ... | 09/23/2008 |
| 7341007 | Balancing damper An apparatus for use in a furnace system to facilitate efficient and complete combustion of coal streams in a carrier gas. The apparatus, capable of being positioned horizontally or vertically in the coal pipes between the grinding mills and the furnace burner, cont... | 03/11/2008 |
| 7316188 | Dedensification and delivery unit A dedensification and delivery unit for the conversion of an alternative fuel source into fuel, comprising: a dedensification area for separating a densified alternative fuel source into its component parts to form a dedensified alternative fuel source; a compressio... | 01/08/2008 |
| 7261046 | System and method of reducing pulverizer flammability hazard and boiler nitrous oxide output The present invention is a system and method of reducing nitrogen oxides in coal combustion exhaust gases and preventing fire and explosion in pulverized coal systems. The present invention first cools the flue gas exiting a boiler of the pulverized coal system with... | 08/28/2007 |
| 7159807 | Granular material grinder and method of use A granular material grinder and method of use includes a hammer mill for reducing incoming granular material into particulate material, a microgrinder for reducing the particulate matter into microground powder by particulate matter to particulate matter collisions,... | 01/09/2007 |
| 7150585 | Process and equipment for the conveyance of powdered material The invention concerns a process and a device (2) for the pneumatic conveyance of powdered material (4), in which a cylindrical chamber (10, 12), which can be connected with a reservoir (6) by a sealable inlet (14, 16) and with a d... | 12/19/2006 |
| 7028625 | Systems and methods for treating and preventing blockages in solid fuel conditioning equipment Systems, methods and apparatus are provided for introducing one or more unblocking materials into solid fuel conditioning equipment at predetermined locations and intervals to prevent the occurrence of, or to treat the existence of at least one solid fuel blockage w... | 04/18/2006 |
| 7017501 | Riffle distributor assembly for a fossil fuel fired combustion arrangement A riffle distributor assembly for influencing the travel properties of a material feed stream 42 moving between a pulverizer 14 and a furnace 12 is part of a feed path 36 having one duct 44A having a branch entry 66A and ano... | 03/28/2006 |
| 7013815 | Adjustable air foils for balancing pulverized coal flow at a coal pipe splitter junction An adjustable device installed at the inlet of conventional junctions/splitters (116) for on-line control of the distribution of coal among the outlet pipes is herein disclosed. The device includes a plurality of wake inducing airfoils (60) each positi... | 03/21/2006 |
| 6988452 | Tower distributor assembly A furnace system for solid fuel includes a tower distributor for addressing flow imbalance in a heterogeneous stream. The tower distributor comprises four sections: an inlet section, a mixer section, a recovery section and an outlet section. Illustratively, the inle... | 01/24/2006 |
| 6976440 | Fuel distribution device for fuel feed ducts and method of operating distribution device A fuel supply duct, which supplies a mixed fluid of a solid fuel and carrier gas to one or more burners provided on the walls of a furnace, is provided with a branching part, and each of a plurality of branch ducts, which branch out from the branching part, is conne... | 12/20/2005 |
| 6973883 | Reburn system with feedlot biomass The present invention pertains to the use of feedlot biomass as reburn fuel matter to reduce NOx emissions. According to one embodiment of the invention, feedlot biomass is used as the reburn fuel to reduce NOx. The invention also includes burn... | 12/13/2005 |
| 6932786 | Method and device for monitoring the access to the cardiovascular system of a patient A device for monitoring the access to the cardiovascular system of a patient undergoing an extracorporeal treatment of blood in a machine (1) comprising a treatment device (4) and an extracorporeal circuit (2), comprises: a voltage generator ( | 08/23/2005 |
| 6912962 | Apparatus for the cleaning of flue gases containing sulfur dioxide An apparatus for the cleaning of flue gases containing ash and sulfur dioxide produced by burning sulfur-containing coal in the combustion chamber of a circulating fluidized-bed firing system includes a system for delivering a particulate SO2 sorbent into... | 07/05/2005 |
| 6899041 | Multi-spin mixer for particulate coal supply conduit A mixer having two or more concentric cylindrical flow channels is placed in a supply conduit for a combustion chamber to mix airborne particulate coal prior to entering a manifold supplying four parallel branch conduits. Vanes are mounted in the mixer channels for ... | 05/31/2005 |
| 6840183 | Diffuser insert for coal fired burners A diffuser for a pulverized coal delivery pipe near an elbow connection to a burner nozzle. A diffuser structure is located in the pipe adjacent the elbow outlet, with both radial and axial diffuser elements for diffusing radial and axial components of coal concentr... | 01/11/2005 |
| 6807914 | Shutoff device for burners of a pulverized coal furnace A shutoff device is provided for pulverized coal burners of a pulverized coal furnace. Each burner has a primary tube that conveys a pulverized coal/air mixture and is connected with a feed line for supplying the mixture to the respective burner. Disposed in the fee... | 10/26/2004 |
| 6799525 | Automatic coal damper Apparatus for controlling primary air flow and pulverized coal flow to a plurality of burners in a coal-fired boiler includes a plurality of coal dampers arranged to supply a mixture of air and pulverized coal to respective burners in the coal-fired boiler, each dam... | 10/05/2004 |
| 6789488 | Adjustable flow control elements for balancing pulverized coal flow at coal pipe splitter junctions An adjustable device installed at the inlet of conventional junctions/splitters (116) for on-line control of the distribution of coal among the outlet pipes is herein disclosed. The device includes a plurality of flow control elements (60) each positio... | 09/14/2004 |
| 6564727 | Method and apparatus for uprating and controlling a solid fuel pulverized and exhauster system for a steam generator A method for retrofitting a solid fuel pulverizer and exhauster system includes replacing the bowl drive motor 38 with a new drive motor which is operable to drivingly rotate the bowl 12 at the pre-retrofit speed but which provides relatively more horsepo... | 05/20/2003 |
| 6260490 | Burner isolation valve for pulverized fuel systems A burner isolation valve or gate for use in the coal-delivery pipes of coal-fired power plants. Safety regulations often require that two valves be placed in the coal delivery line between a combustion chamber and an exhauster or pulverizer type deliver s... | 07/17/2001 |
| 6085672 | Apparatus for blowing synthetic resin into furnace An apparatus for blowing synthetic resin into a furnace including a first processing line for processing film-shaped synthetic resins into a granular synthetic resin material; a second processing line for processing non-film-shaped synthetic resins into a... | 07/11/2000 |
| 6055914 | Pre-riffle box mixing device for coal-fired power plant In a coal-fired power plant having an exhauster fan for delivering coal/air flow through a discharge chute to a combustion chamber and further having a riffle box in the discharge chute, a mixing device located in the discharge chute between the exhauster... | 05/02/2000 |
| 5799592 | Inlet guide vanes for pulverizer exhausters An exhauster assembly for a solid fuel pulverizer has an exhauster housing defining an inlet opening. A fan rotatably mounts in the exhauster housing and a duct defining an air stream flow path is in fluid connection with the inlet opening. An inlet guide... | 09/01/1998 |
| 5775237 | Dry bottom ash handling system A dry bottom ash handling system contemplates a plurality of hoppers disposed beneath a solid fuel-fired steam boiler. Each hopper includes angled walls converging at a generally rectangular opening controlled by a grate door. Air inlets are provided at i... | 07/07/1998 |
| 5762491 | Solid material delivery system for a furnace A solid material delivery system for a furnace which melts the solid material has a delivery tube located at least partially within the furnace which is mounted by a rotor assembly for selective radial positioning in the furnace over a crucible in the fur... | 06/09/1998 |
| 5685240 | Variable orifice plate for coal pipes A flow control apparatus for a coal pipe containing a stream of primary combustion air carrying pulverized solid fuel particles, includes a frame sealingly secured to an outside surface of the coal pipe around a window opening formed on one side of the pi... | 11/11/1997 |
| 5657704 | Continuous high pressure solids pump system A system and method for continuously supplying solids from a lower pressure storage reservoir to a high pressure feeder tank for use in an application such as a blast furnace employs a high pressure variable speed solids pump. A fluidizing device discharg... | 08/19/1997 |
| 5544596 | Method of supplying coal and sulphur absorbent to a combustor and a power plant in which the method is applied The present invention relates to a method of supplying coal and sulphur absorbent to a combustor with combustion in a fluidized bed. The coal is crushed and sorted into a fine and a coarse fraction. The fine fraction is mixed with water, possibly with oil... | 08/13/1996 |
| 5492279 | Variable spring rate pulverizer apparatus A pulverizer for crushing coal for use in a combustion process includes a bowl shaped body, a roller dimensioned and configured for contact with at least a portion of the bowl shaped body, apparatus for causing relative movement between the bowl shaped bo... | 02/20/1996 |
| 5482027 | Partitioned bisector regenerative air heater A furnace apparatus which includes a plurality of water walls. Each includes a plurality of tubes and the water walls collectively enclose a combustion chamber. The apparatus includes a plurality of windboxes, each of the windboxes is disposed intermediat... | 01/09/1996 |
| 5410973 | Process and apparatus for the incineration of sewage sludge and refuse Sewage sludge from municipal and industrial sewage systems can be incinerated in conjunction with the incineration of refuse in a refuse incinerator as environmentally safely as possible, with a favorable energy balance and low expenditures for technology... | 05/02/1995 |
| 5400725 | Method and device for feeding particulate material into a pressurized container A method of feeding particulate material into a pressurized fluidized bed combustor including the steps of: feeding the particulate material from a source which is at a substantially lower pressure than that existing in the pressurized fluidized bed combu... | 03/28/1995 |
| 5363776 | Exhauster inlet venturi An inlet venturi for coal-side exhauster fan structure used to deliver pulverized coal to a combustion chamber. Generally, the inlet venturi has an axial length comparable to that of the exhauster fan inlet, resulting in a shallow, smooth transition angle... | 11/15/1994 |
| 5325603 | Solids feed system and method for feeding fluidized beds The invention provides an improved method and apparatus for feeding solids to a fluidized bed reactor. A back pressure control valve regulates the pressure drop between the pressure above a solids column in a standpipe and the pressure in the reactor. Sol... | 07/05/1994 |
| 5285735 | Control apparatus for injection quantity of pulverized coal to blast furnace An apparatus for controlling the injection quantity of pulverized coal by measuring the flow rate of the pulverized coal in a conveying pipe, through which the pulverized coal is injected into tuyeres of a blast furnace, in order to regulate the opening o... | 02/15/1994 |
| 5239935 | Oscillating damper and air-swept distributor An oscillating damper and air-swept distributor is disclosed for controllably introducing solid fuel into a furnace. The oscillating damper having an oscillating valve member, which oscillates between a first adjustable position and second adjustable posi... | 08/31/1993 |
| 5215017 | System and method for feeding paste material or slurry into a furnace A fuel feed system and method for feeding low grade fuels to a fluidized bed furnace including an enclosure with a fuel inlet for introducing the fuel into the enclosure, an inlet for introducing air into the enclosure so as to propel the fuel through the... | 06/01/1993 |
| 5175943 | Solids feed system and method for feeding fluidized beds The invention provides an improved method and apparatus for feeding solids to a fluidized bed reactor. A back pressure control valve regulates the pressure drop between the pressure above a solids column in a standpipe and the pressure in the reactor. Sol... | 01/05/1993 |
