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    Oxy-fuel reburn: a method for NOx reduction by fuel reburning with oxygen
    14.
    发明申请
    Oxy-fuel reburn: a method for NOx reduction by fuel reburning with oxygen 失效
    氧燃料重燃：用氧气再燃燃烧NOx还原的方法

    公开(公告)号：US20060257800A1

    公开(公告)日：2006-11-16

    申请号：US11183512

    申请日：2005-07-18

    Applicant: Hamid Sarv

    Inventor： Hamid Sarv

    IPC: F23G7/08

    CPC classification number: F23C6/047 ,  F23C5/12 ,  F23C2201/101 ,  F23L7/007 ,  Y02E20/344

    Abstract: A method is disclosed for reducing the NOx emission of fossil fuel burners. The method creates fuel-rich and fuel-lean zones within the boiler to enhance the removal of NOx species by creating a plurality of NOx reducing precursors.

    Abstract translation: 公开了一种用于减少化石燃料燃烧器的NO x排放的方法。 该方法在锅炉内产生富燃料和无燃料的区域，以通过产生多个NO x X 3还原前体来增强NO x 2物质的去除。

    Solid fuel boiler and method of operating combustion apparatus
    16.
    发明授权
    Solid fuel boiler and method of operating combustion apparatus 失效
    固体燃料锅炉及其操作方法

    公开(公告)号：US06938560B2

    公开(公告)日：2005-09-06

    申请号：US10744101

    申请日：2003-12-24

    Applicant: Hirofumi Okazaki ,  Masayuki Taniguchi ,  Kenji Yamamoto ,  Kenji Kiyama

    Inventor： Hirofumi Okazaki ,  Masayuki Taniguchi ,  Kenji Yamamoto ,  Kenji Kiyama

    IPC: F23C99/00 ,  F23C6/04 ,  F23C7/00 ,  F23C9/00 ,  F23D1/00 ,  F23L9/04 ,  F23B5/02

    CPC classification number: F23D1/00 ,  F23C6/045 ,  F23C7/004 ,  F23C9/00 ,  F23C2201/101 ,  F23C2202/30 ,  F23L9/04

    Abstract: There is disclosed a solid fuel boiler including: a furnace including a plurality of solid fuel burners and a furnace wall to perform horizontal firing; a duct through which a part of combustion exhaust gas recirculates to a furnace from a downstream side of the furnace; heat exchanger tubes disposed on a furnace wall and in a heat recovery area of the furnace; and recirculation gas ports via which the recirculation gas is supplied to a reducing flame portion of the burners in the furnace without combining the gas with a flame in the vicinity of an outlet of the burner, so that molten ash is prevented from firmly sticking to the furnace wall and thermal NOx, fuel NOx, and unburned carbon.

    Abstract translation: 公开了一种固体燃料锅炉，其包括：包括多个固体燃料燃烧器的炉和进行水平燃烧的炉壁; 燃烧废气的一部分从炉的下游侧再循环到炉中的管道; 设置在炉壁和炉的热回收区域中的热交换器管; 以及再循环气体端口，通过该再循环气体将再循环气体供应到炉内的燃烧器的还原火焰部分，而不将气体与燃烧器出口附近的火焰组合，使得熔融灰被防止牢固地粘到 炉壁和热NOx，燃料NOx和未燃碳。

    Combined fluidized bed and pulverized coal combustion method
    18.
    发明申请
    Combined fluidized bed and pulverized coal combustion method 失效
    联合流化床和粉煤燃烧法

    公开(公告)号：US20040261675A1

    公开(公告)日：2004-12-30

    申请号：US10476684

    申请日：2003-12-08

    Inventor： Pauli Dernjatin ,  Kati Savolainen ,  Kari Jaaskelainen ,  Marko Fabritius

    IPC: F23D001/00 ,  F23G005/00

    CPC classification number: F23C6/047 ,  F23C10/002 ,  F23C2201/101 ,  F23C2201/301

    Abstract: The invention relates to a combined fluidized bed and pulverized coal combustion method and system. In the method, fluidizing air (4) is injected into a fluidized bed (2) situated in the bottom portion of the combustion chamber (3). Into the combustion chamber, to above the fluidized bed (2), is fed a mixture of pulverized coal and a carrier gas from a second set of fuel feed means (6) at a mass flow rate which is higher or at least substantially equal to the upper ignition limit of the mixture, and the mixture of the pulverized coal and the carrier gas at least by the fluidizing air (4), and at least a fraction of the fuel fed via the second set of fuel feed means (6) is combusted above the fluidized bed (2).

    Abstract translation: 本发明涉及一种组合流化床和粉煤燃烧方法及系统。 在该方法中，将流化空气（4）注入位于燃烧室（3）底部的流化床（2）中。 在燃烧室内到达流化床（2）的上方，以来自第二组燃料供给装置（6）的粉煤和载气的混合物以更高或至少基本上等于 至少通过流化空气（4），混合物的上限点火极限和粉煤与载体气体的混合物，以及经由第二组燃料供给装置（6）供给的燃料的至少一部分是 在流化床（2）上方燃烧。

    Mixing process for combustion furnaces
    19.
    发明申请
    Mixing process for combustion furnaces 审中-公开
    燃烧炉混合过程

    公开(公告)号：US20040185401A1

    公开(公告)日：2004-09-23

    申请号：US10391825

    申请日：2003-03-19

    Inventor： Goran Moberg

    IPC: F23C005/32

    CPC classification number: F23C6/045 ,  F23C5/32 ,  F23C2201/101 ,  F23J7/00 ,  F23L9/02

    Abstract: A system and method for increasing combustion furnace efficiency, including the steps of providing a furnace with a plurality of secondary air injection ducts, asymmetrically positioned in an tangentially reinforcing manner; injecting fuel with substoichiometric primary air through the burners; injecting secondary air through the plurality of secondary air injection ducts; wherein the velocity of the injected air is such that the ratio of the advected air velocity to the furnace width is between about 2 secnull1 to about 150 secnull1; thereby increasing combustion efficiency and reactor efficiency via mixing and rotation of the combustion space.

    Abstract translation: 一种用于提高燃烧炉效率的系统和方法，包括以多个二次空气喷射管道提供不对称地以切向加强方式定位的炉子的步骤; 通过燃烧器将化学计量的一次空气注入燃料; 通过所述多个二次空气注入管道注入二次空气; 其中喷射空气的速度使得平流的气流速度与炉宽的比率在约2秒-1至约150秒-1之间; 从而通过燃烧空间的混合和旋转来提高燃烧效率和反应器效率。

    FUEL STAGING METHODS FOR LOW NOX TANGENTIAL FIRED BOILER OPERATION
    20.
    发明申请
    FUEL STAGING METHODS FOR LOW NOX TANGENTIAL FIRED BOILER OPERATION 失效
    低NOx燃烧锅炉运行的燃油分析方法

    公开(公告)号：US20040142292A1

    公开(公告)日：2004-07-22

    申请号：US10346009

    申请日：2003-01-16

    Inventor： Lawrence D. Berg ,  Edmund S. Schindler ,  Nigel John Garrad ,  John Joseph Halloran

    IPC: F23C005/32

    CPC classification number: F23C6/047 ,  F23C5/32 ,  F23C2201/101 ,  Y02E20/344

    Abstract: A tangential fired boiler has a circumferential wall defining a combustion zone and a plurality of fuel inlets disposed along the circumferential wall. The plurality of fuel inlets inject fuel at non-uniform rates in order to produce localized fuel rich, oxygen poor zones and fuel lean,-oxygen rich zones within the combustion zone, and to cause ambient boiler gases to be entrained into and mix with the oxygen poor zone to achieve fuel staging of the boiler.

    Abstract translation: 切向燃烧的锅炉具有限定燃烧区域的周向壁和沿着周向壁设置的多个燃料入口。 多个燃料入口以不均匀的速率喷射燃料，以便在燃烧区内产生局部富燃料，贫氧区和燃料贫乏 - 富氧区，并使周围的锅炉气体被夹带并与其混合 氧气不良区域实​​现锅炉燃油分级。

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