Class 110/165A - Fly ash disposers

Subclass of Class 110 - Furnaces
No. of patents: 68
Last issue date: 01/10/2012

Number	Title	Issue Date
8091491	Integrated system for the extraction of heavy ash, conversion thereof into light ash and reduction of unburnt matter The present invention is about a process for treating all the ashes produced by a coal dust boiler (1), able to reduce the total unburnt matter content, to increase the combustion efficiency of the boiler (1), and to have the light ashes as the only wa...	01/10/2012
7302897	MSW disposal process and apparatus using gasification A system for disposing of municipal solid waste provides commercially-available equipment that is modified to initially remove identifiable unwanted components from the waste, and then chop the waste into small pieces of a size suitable for handling, separation and ...	12/04/2007
7273015	Method and apparatus for combustion of residual carbon in fly ash A system for combustion and removal of residual carbon within fly ash particles in which the fly ash particles are fed into an array of process units for combustion. The fly ash particles are subjected to heat and motive air such that as the fly ash particles pass t...	09/25/2007
7146916	Starved air inclined hearth combustor An inclined hearth combustor which generally includes a primary combustion chamber having a plurality of stepped hearths, a secondary combustion chamber in communication with the primary combustion chamber and a boiler having an inlet in communication with the secon...	12/12/2006
7128006	Process for rendering an ash inert, artificial pozzolana obtained by means of the said process Process for rendering inert an ash originating from the incineration of municipal waste, according to which the ash is subjected successively to treatment (19) with a water-soluble phosphate (20) in the presence of water, under conditions adjusted to c...	10/31/2006
7047894	Method and apparatus for combustion of residual carbon in fly ash A system for combustion and removal of residual carbon within fly ash particles in which the fly ash particles are fed into an array of process units for combustion. The fly ash particles are subjected to heat and motive air such that as the fly ash particles pass t...	05/23/2006
6994036	Coal-fired power station A coal-fired power station is provided and has a boiler that is heatable by dry firing, a catalytic converter for reducing an NOx level, a flue gas channel that adjoins the boiler and leads to the catalytic converter, and a coarse ash separator disposed u...	02/07/2006
6945179	Ammonia removal from fly ash An apparatus for the application of heat to remove ammonia compounds from fly ash is disclosed. The apparatus includes a source of fly ash comprising particulates having ammonia compounds affixed to the fly ash particulates, a heating chamber including a treatment b...	09/20/2005
6907994	Process for converting wet fly ash into dry useful industrial products There is provided a process for converting wet fly ash into a useful product such as cement replacement or industrial filler. A first amount of wet fly ash is provided. The wet fly ash is fed into a mixing chamber. An amount of aggregate, such as stone, is provided....	06/21/2005
6745705	Furnace The invention relates to a furnace with a body (1) of a furnace, at the lower end of which a discharge device (2) for the ashes produced in the combustion chamber is provided. A continuous conveyor device in the form of a vibrating conveyor (3) ...	06/08/2004
6481360	Ultra fine fly ash and a system for collecting the same A system for collecting ultra fine fly ash from a dry fly ash removal system includes providing a bagfilter transport conduit for each bagfilter of the system. A vacuum shutoff valve is positioned in each bagfilter transport conduit The bagfilter transpor...	11/19/2002
6338306	Ash handling system An apparatus and method is provided for discharging ash from a plurality of fossil-fuel boiler hoppers through actuator opened gate valves by opening only selected gate valves during a given discharge cycle and bypassing other hoppers. The time required t...	01/15/2002
6311630	Method and device for removal of soda melt from a soda recovery unit Method and device for removal of soda melt from a soda recovery boiler in conjunction with shutdown of the soda recovery boiler, in which method the supply of lye into the boiler is interrupted and, if necessary, the pile of congealed soda accumulated in ...	11/06/2001
6216612	Ultra fine fly ash and a system for collecting the same A system for collecting ultra fine fly ash from a dry fly ash removal system includes providing a bagfilter transport conduit for each bagfilter of the system. A vacuum shutoff valve is positioned in each bagfilter transport conduit. The bagfilter transpo...	04/17/2001
6202573	Apparatus and process for carbon removal from fly ash A new apparatus and process for the removal of carbon fly ash, whereby carbon removal occurs through oxidation. The ignition of the carbon is accomplished by bulk heating and impingement of a suspended bed of fly ash by a heated oxidizing gas stream, and ...	03/20/2001
6105517	Fly ash treatment A process for treating toxic fly ash from an incinerator which comprises heating the fly ash held in suspension in a combustible or combusted gas at least to a temperature at which sintering of the fly ash takes place....	08/22/2000
6067914	Method of operating a combustion unit of a coal-fired power plant with a slag tap furnace and combustion plant operating according to the method A method of operating a combustion unit of a coal-fired power plant operating according to a slag tap furnace firing method, which includes supplying a titanium-containing material in addition to coal to a melting chamber for accelerating coal burn-up, bu...	05/30/2000
6065409	Method of hot scrubbing flue gases, in particular for an incineration plant for household refuse The method consists in causing the flue gases to pass through a filter placed inside the recovery boiler so that the fly ash contained in said flue gases can be hot filtered out. An additional flow (B) of a material is superposed on the flow of fly ash to...	05/23/2000
6058855	Low emission U-fired boiler combustion system At least one main combustion chamber contains at least one pulverized coal burner. Each pulverized coal burner is operatively arranged for minimizing NOX production and for maintaining a predetermined operating temperature to liquefy ash within...	05/09/2000
6038987	Method and apparatus for reducing the carbon content of combustion ash and related products A method for reducing the carbon content of a combustion ash containing siliceous ash particles and carbon particles includes subjecting the combustion ash to comminution to reduce the particle size of the siliceous ash particles and the carbon particles ...	03/21/2000
5992336	Reburning of coal ash Bottom ash and flyash having high LOI is reburned in a pulverized coal furnace. The bottom ash is added to the coal supply before the coal is pulverized. Flyash is added to the pulverized coal stream for injection with the pulverized coal or is separately...	11/30/1999
5976224	Separating carbon from ash A method of separating unburned Carbon, as particulate matter, from the flyash produced as a result of the combustion process occurring in a pulverized-coal fired steam generating power plant is disclosed. More particularly the invention separates the fly...	11/02/1999
5954000	Fluid bed ash cooler Apparatus for cooling ash exiting from circulating fluidized bed equipment includes an enclosure having a floor, a plurality of walls disposed around the floor and a ceiling. The enclosure also has an inlet and an outlet. The outlet is disposed in one of ...	09/21/1999
5950548	Process for burning combustibles, in particular garbage In the process for burning combustibles, in particular garbage and refuse, on a furnace grate, the combustion regulation on the furnace grate is carried out in such a way that the ash developing at the end of the furnace grate has a temperature lying just...	09/14/1999
5937772	Reburn process A process and apparatus for combustion in which a combustible material is introduced into a combustion chamber and oxidant is supplied to the combustion chamber. The combustible material is burned, and forming a primary combustion zone. A mixture of flue ...	08/17/1999
5925165	Process and apparatus for the 3-stage treatment of solid residues from refuse incineration plants In a method for processing solid residues from refuse incineration plants the slag is melted and heavy metals from the melt (16) are separated for reutilization. The slag is directly transferred from the refuse incineration plant into a first heating cham...	07/20/1999
5868084	Apparatus and process for carbon removal from fly ash A new apparatus and process for efficient removal of carbon from fly ash has been developed, whereby carbon removal occurs through oxidation as combustion. The ignition of the carbon is accomplished by bulk heating and molecular impingement of a suspended...	02/09/1999
5771822	Process for the disposal of residual substances from waste incineration plants as well as activated coke and/or activated carbon The present invention describes a process for the disposal of residual substances from waste incineration plants as well as activated coke and/or activated carbon. For this purpose the residual substance as well as activated coke and/or activated carbon i...	06/30/1998
5765489	Process for the treatment of solid residue from refuse incineration plants, and apparatus for performing the process A process for the treatment of solid residue from a refuse incineration plant, involving: melting the solid residue in a first heating chamber under oxidizing conditions to provide a melt; reducing any heavy metal compounds present in the melt to elemental met...	06/16/1998
5749308	Apparatus and process for carbon removal from fly ash A new apparatus and process for efficient removal of carbon from fly ash has been developed, whereby carbon removal occurs through oxidation as combustion. The ignition of the carbon is accomplished by bulk heating and molecular impingement of a suspended...	05/12/1998
5605104	Method and device for melting down solid combustion residues The invention relates to a method and a device for melting down solid combustion residues such as slags, ashes and fine dusts from waste combustion installations (11) with solid, liquid and/or gaseous fossil fuels in a melting device. In order to reduce t...	02/25/1997
5511496	Method of recovering glass and metal from solid residues produced in refuse incineration plants Glass and metal are recovered separately by melting from the solid residues produced in a refuse incineration plant, particularly from slag. The melting is effected in two zones. In the first, top melting zone the oxidic constituents of the residues are c...	04/30/1996
5511495	Method of processing a mixture of bottom ash and fly ash Bottom ash is taken out of an incinerator after undergoing a moistening process and is subjected to a drying process to reduce its water content to less than 10 weight % or it is taken out of the incinerator with water content less than 10 weight %. Fly a...	04/30/1996
5501161	Process for the thermal treatment of solids which arise in the purification of flue gases Dustlike and/or finely divided solids which arise in the purification of flue gases, in particular from refuse incineration plants, are subjected to a thermal treatment. In this case, the said solids are fed to a filter device along a predetermined transp...	03/26/1996
5481989	Method of collecting and conditioning a petroleum coke fluid bed combustion ash A method of collecting and conditioning either or both of a fluid bed combustion cyclone or bed ash, from a sulfur-containing petroleum coke combustion, by transferring dry combustion ash, containing anhydrous calcium sulfate and resultant lime to a pneum...	01/09/1996
5390611	Thermal processing of fly ash Fly ash is thermally processed in electrically heated, closed pre-heat and combustion chambers. In the combustion chamber, the fly ash is tumble mixed to produce maximum combustion of carbon in the fly ash. Further, the tumble mixing is done while injecti...	02/21/1995
5370067	Method of incinerating solid combustible materials, especially urban waste Urban waste is dried and burned in a mechanical grate furnace in a reducing atmosphere to reduce the formation of NOx. Consumption of the clinker is completed in a well at the base of which a device such as a plasma torch is provided for vitrif...	12/06/1994
5351630	Apparatus for conditioning ASTM class C fly ash A hydrated granular fly ash composition is disclosed. The granular fly ash may be transported with minimal dust problems while maintaining its capacity to act as a solidifying agent at a remote destination. The process for producing the fly ash involves e...	10/04/1994
5315937	Waste material combustion ash ejection system A waste material combustion apparatus for disposing of an assortment of waste material like garbage, sludge and burnable trash in which the ash produced as a result of combustion of that assorted material is collected and transported to a bag house where ...	05/31/1994
5297495	Process of incinerating waste materials For the incineration of waste materials, a process is described, in which the waste materials are reduced in size as far as necessary and are subsequently optionally mixed with fuel and are incinerated at temperatures from 1000° to 1700° C. to form liqu...	03/29/1994

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Class 110/165A - Fly ash disposers