METHOD AND SYSTEM FOR DRYING FUELS IN THE FORM OF DUST, PARTICULARLY TO BE FED TO A GASIFICATION PROCESS
    91.
    发明申请
    METHOD AND SYSTEM FOR DRYING FUELS IN THE FORM OF DUST, PARTICULARLY TO BE FED TO A GASIFICATION PROCESS 审中-公开
    用于干燥燃料形式的方法和系统,特别是用于气化过程

    公开(公告)号:US20100101107A1

    公开(公告)日:2010-04-29

    申请号:US12449287

    申请日:2007-12-14

    Abstract: According to a method for drying fuels in the form of dust, particularly to be fed to a gasification process, such as coal, petroleum coke, biological waste, or the like, wherein the fuel (1) is crushed in a mill (2) and fed to a filter/separator (3) by means of a propellant and drying gas, and at least part of the propellant/drying gas in the circuit is returned to the mill (2) after heating, the known disadvantages are not only to be avoided, but particularly a cost-effective milling and drying method and a corresponding system are to be provided, having low emissions and a low inert gas requirement. This is achieved according to the method in that part of the propellant/drying gas flow is cooled down and dehumidified in a spray tower (6), or the like, wherein part of the dried gas exiting the spray tower is fed to the environment and/or a firing process, and the other part is returned to the propellant/drying gas flow.

    Abstract translation: 根据用于干燥灰尘形式的燃料的方法,特别是将其供给到诸如煤,石油焦炭,生物废物等的气化过程中,其中燃料(1)在研磨机(2)中被粉碎, 并通过推进剂和干燥气体进料至过滤器/分离器(3),加热后回路中的至少部分推进剂/干燥气体返回到碾磨机(2)中,已知的缺点不仅在于 但要特别提供一种具有成本效益的铣削和干燥方法以及相应的系统,具有低排放和低惰性气体需求。 这是根据方法实现的,其中推进剂/干燥气体流的一部分被冷却并在喷雾塔(6)等中除湿,其中离开喷射塔的干燥气体的一部分被供给到环境中, /或燃烧过程,另一部分返回到推进剂/干燥气体流中。

    FOSSIL-FUEL-FIRED SYSTEM HAVING REDUCED EMISSIONS AND METHOD OF OPERATING THE SAME
    92.
    发明申请
    FOSSIL-FUEL-FIRED SYSTEM HAVING REDUCED EMISSIONS AND METHOD OF OPERATING THE SAME 有权
    具有减少排放物的燃料燃烧系统及其运行方法

    公开(公告)号:US20100024693A1

    公开(公告)日:2010-02-04

    申请号:US12577340

    申请日:2009-10-12

    Abstract: A fossil-fuel-fired system, which includes an emissions-control-agent dispenser, a furnace, an emissions monitor and, optionally, a controller, is disclosed. The emissions-control-agent dispenser provides a prescribed amount of organic-emissions-control agent, such as, for example, an opacity-control agent to the fossil-fuel-fired system. The furnace includes an exhaust communicating with the atmosphere. The emissions monitor is capable of measuring at least one property of the flue-gas communicated through the exhaust to the atmosphere. For example, when an organic-emissions-control agent is an opacity-control agent, the emissions monitor has the capability of at least measuring opacity. When included, the controller communicates with at least the emissions-control-agent dispenser and the emissions monitor.

    Abstract translation: 公开了一种化石燃料燃烧系统,其包括排放物控制剂分配器,炉,排放监视器和任选的控制器。 排放物控制剂分配器向化石燃料燃烧系统提供规定量的有机排放控制剂,例如不透明度控制剂。 该炉包括与大气连通的废气。 排放监测器能够测量通过排气通向大气的烟道气的至少一种性质。 例如,当有机排放控制剂是不透明度控制剂时,排放监测器具有至少测量不透明度的能力。 当包括时,控制器至少与排放物控制剂分配器和排放监视器进行通信。

    Reduction of coal-fired combustion emissions
    94.
    发明授权
    Reduction of coal-fired combustion emissions 有权
    减少燃煤燃烧排放

    公开(公告)号:US07276217B2

    公开(公告)日:2007-10-02

    申请号:US11204765

    申请日:2005-08-16

    Abstract: A process for mitigation of fouling deposits within a combustion zone, capturing of toxic metal emissions, and reduction of visible sulfur emissions attributable to sulfuric acid mist during coal combustion. SO3 formed during coal combustion is reduced by the addition to the coal of raw, unprocessed magnesium-containing minerals such as magnesite ore or brucite ore. The minerals are pulverized to a fine particle size and combined with pulverized coal to provide a mixture of the particles. The mixture is combusted and the ore particles calcine and decrepitate to very fine magnesium oxide particles that have a significant particle surface area. The magnesium oxide particles react with the SO3 produced during combustion of the coal and also capture toxic metals to reduce the quantity of undesirable stack discharge components.

    Abstract translation: 一种减少燃烧区内污垢沉积物的过程,捕获有毒金属排放物,以及减少煤燃烧过程中硫酸雾引起的可见硫排放。 在煤燃烧期间形成的SO 3通过添加到未加工的含镁矿物如镁砂矿石或水镁石矿石的煤中而减少。 将矿物粉碎至细粒度并与粉煤混合以提供颗粒的混合物。 混合物燃烧,矿石颗粒煅烧并破碎成具有显着颗粒表面积的非常细小的氧化镁颗粒。 氧化镁颗粒与煤燃烧期间产生的SO 3反应,并且还捕集有毒金属以减少不期望的堆放电组分的量。

    Reduced-emissions fossil-fuel-fired system
    95.
    发明申请
    Reduced-emissions fossil-fuel-fired system 审中-公开
    减排化石燃料系统

    公开(公告)号:US20040261673A1

    公开(公告)日:2004-12-30

    申请号:US10818229

    申请日:2004-04-02

    Abstract: A fossil-fuel-fired system, which includes an emissions-control-agent dispenser, a furnace, an emissions monitor and, optionally, a controller, is disclosed. The emissions-control-agent dispenser provides a prescribed amount of organic-emissions-control agent, such as, for example, an opacity-control agent to the fossil-fuel-fired system. The furnace includes an exhaust communicating with the atmosphere. The emissions monitor is capable of measuring at least one property of the flue-gas communicated through the exhaust to the atmosphere. For example, when an organic-emissions-control agent is an opacity-control agent, the emissions monitor has the capability of at least measuring opacity. When included, the controller communicates with at least the emissions-control-agent dispenser and the emissions monitor.

    Abstract translation: 公开了一种化石燃料燃烧系统,其包括排放物控制剂分配器,炉,排放监视器和任选的控制器。 排放物控制剂分配器向化石燃料燃烧系统提供规定量的有机排放控制剂,例如不透明度控制剂。 该炉包括与大气连通的废气。 排放监测器能够测量通过排气通向大气的烟道气的至少一种性质。 例如,当有机排放控制剂是不透明度控制剂时,排放监测器具有至少测量不透明度的能力。 当包括时,控制器至少与排放物控制剂分配器和排放监视器进行通信。

    System and method for controlling particle flow distribution between the outlets of a classifier

    公开(公告)号:US06607079B2

    公开(公告)日:2003-08-19

    申请号:US09930163

    申请日:2001-08-16

    Applicant: Stefan Laux

    Inventor: Stefan Laux

    Abstract: An apparatus for separating coarse particles from a stream of gas entrained with a mixture of coarse and fine particles includes an outer casing, an inner casing disposed within the outer casing and configured to define a passageway between the outer casing and the inner casing through which the stream of gas and mixture of coarse and fine particles can flow substantially upwardly, a plurality of angled vanes for imparting a rotational flow to the stream of gas and particles as the stream passes from the passageway to within the inner casing in order to separate the coarse particles from the fine particles entrained within the stream of gas, a plurality of outlets for discharging the stream of gas and fine particles from the apparatus, and at least one distribution vane pivotably mounted with respect to the outlets for controlling the distribution of fine particles among the various outlets by affecting the rotational flow of the stream of gas and fine particles.

    Method for operating a slag tap combustion apparatus
    97.
    发明授权
    Method for operating a slag tap combustion apparatus 有权
    操作渣滓燃烧装置的方法

    公开(公告)号:US06484651B1

    公开(公告)日:2002-11-26

    申请号:US09684125

    申请日:2000-10-06

    CPC classification number: F23J7/00 C10L9/10 F23K2201/101 F23K2201/505

    Abstract: The present invention provides a method of operating a solid fuel fired boiler comprising introducing a solid fuel and an iron-bearing material into the boiler. The solid fuel is at least partially combusted in the boiler to produce an ash slag, wherein the ash fusion temperature characteristics (i.e., one or more of the IDT, ST, HT, and FT) of the ash slag are different than the ash fusion temperature characteristics of the ash slag that would result on combustion of the solid fuel alone. The method of the present invention is particularly applicable to slag tap boilers, including cyclone-type boilers. These boilers are, typically, designed to operate with a liquid ash slag. The iron-bearing material may be, but is not limited to, at least one of iron ore beneficiation tailings, iron ore fines, pelletized blends of coal and iron-bearing material, pelletized solid fuel containing iron-bearing compounds, iron-bearing boiler ash, mill scale from steel production, dust from blast furnace gas cleaning equipment, flue dust from sinter plants, and other materials including iron or including material that bears iron. According to the present invention also describes methods of introducing the iron-bearing material into the slag tap combustion apparatus. The method of the invention allows lower sulfur coals, as well as other fuels typically unsuited for use in slag top boilers, to be used in such boilers, significantly reducing SO2 emissions.

    Abstract translation: 本发明提供了一种操作固体燃料燃烧锅炉的方法,包括将固体燃料和含铁材料引入到锅炉中。 固体燃料在锅炉中至少部分地燃烧以产生灰渣,其中灰渣的灰熔融温度特性(即,IDT,ST,HT和FT中的一种或多种)不同于灰分熔融 将导致固体燃料单独燃烧的灰渣的温度特性。 本发明的方法特别适用于炉渣锅炉,包括旋风式锅炉。 这些锅炉通常设计为与液体灰渣一起操作。含铁材料可以是但不限于铁矿选矿尾矿,铁矿粉,煤和含铁的造粒混合物中的至少一种 材料,含有铁的化合物的造粒固体燃料,含铁锅炉灰,钢铁生产的轧机规格,来自高炉煤气清洁设备的粉尘,来自烧结厂的烟尘,以及其它包括铁或包括铁的材料的材料。 根据本发明还描述了将含铁材料引入炉渣分接头燃烧装置的方法。 本发明的方法允许将较低的硫煤以及通常不适用于渣顶锅炉的其它燃料用于这种锅炉,从而显着减少二氧化硫排放。

    Method for reducing waterwall corrosion in low NO.sub.x boilers
    98.
    发明授权
    Method for reducing waterwall corrosion in low NO.sub.x boilers 失效
    降低低NOx锅炉水壁腐蚀的方法

    公开(公告)号:US6085673A

    公开(公告)日:2000-07-11

    申请号:US100188

    申请日:1998-06-18

    Abstract: A method to reduce waterwall corrosion in a low NO.sub.x boiler includes the steps of locating a waterwall area of a low NO.sub.x boiler where oxidizing conditions exist and deposition of FeS is likely. The combustion air input at the waterwall area is biased to reduce FeS deposition on the waterwall. The biased combustion air input increases the oxidation rate of FeS.sub.2 so as to reduce FeS deposition on the waterwall. The biased combustion air input may be achieved by increasing the air-to-fuel ratio of one burner while reducing the air-to-fuel ratio of another burner, such that the overall air-to-fuel ratio in the low NO.sub.x boiler is substantially constant.

    Abstract translation: 一种减少低NOx锅炉水壁腐蚀的方法包括以下步骤:定位存在氧化条件的低NOx锅炉的水壁区域,并可能沉积FeS。 在水墙区域输入的燃烧空气被偏压以减少水壁上的FeS沉积。 偏置的燃烧空气输入增加了FeS2的氧化速率,以减少水壁上的FeS沉积。 偏置的燃烧空气输入可以通过增加一个燃烧器的空气燃料比而实现,同时降低另一个燃烧器的空气燃料比,使得低NOx锅炉中的总的空气燃料比基本上 不变。

    EINRICHTUNG UND VERFAHREN ZUR STEUERUNG DES BRENNSTOFF-LUFT-VERHÄLTNISSES BEI DER VERBRENNUNG GEMAHLENER KOHLE IN EINER KOHLEKRAFTWERKSFEUERUNGSANLAGE
    99.
    发明申请
    EINRICHTUNG UND VERFAHREN ZUR STEUERUNG DES BRENNSTOFF-LUFT-VERHÄLTNISSES BEI DER VERBRENNUNG GEMAHLENER KOHLE IN EINER KOHLEKRAFTWERKSFEUERUNGSANLAGE 审中-公开
    设备和方法,用于控制燃煤燃料空气比地面KOHLEKRAFTWERKSFEUERUNGSANLAGE

    公开(公告)号:WO2009155903A2

    公开(公告)日:2009-12-30

    申请号:PCT/DE2009/000875

    申请日:2009-06-24

    Abstract: Die Erfindung betrifft eine Einrichtung und ein Verfahren zur Steuerung des Brennstoff-Luft-Verhältnisses bei der Verbrennung gemahlener Kohle in einer Kohlekraftwerksfeuerungsanlage, die Mittel zur pneumatischen Förderung der gemahlenen Kohle zu den Brennern der Kohlekraftwerksfeuerungsanlage sowie Mittel zur Zuführung von Verbrennungsluft zu den Brennern bzw. in den Feuerungsraum der Kohlekraftwerksfeuerungsanlage aufweist und bei der eine Steuerung der Verbrennungsluftmenge und der Tragluftmenge erfolgt. Ziel der Erfindung ist eine hohe Zuverlässigkeit der Steuerung bei geringem Wartungsaufwand der Luftmengenmesseinrichtungen zur Messung der Verbrennungsluft- und der Tragluftmengen. Erfindungsgemäß wird dieses Ziel mit einer Messeinrichtung zur Verbrennungsluftmengenmessung erreicht, die triboelektrische Effekte an in Strömungsrichtung der Verbrennungsluft hintereinander im Verbrennungsluftstrom angeordneten Sensoren nach der Korrelationsmessmethode auswertet und so die Strömungsgeschwindigkeit der Verbrennungsluft misst. Dazu werden in die angesaugte Frischluft zwischen 0,1 mg bis 10 mg feinkörnige Partikel je m 3 Luft mit einem Partikeldurchmesser zwischen 20 μm bis 200 μm eingetragen. Der Partikeleintrag in die angesaugte Frischluft erfolgt insbesondere nur während der Anfahrphase einer Kohlekraftwerksfeuerungsanlage. Bevorzugt erfolgt auch die Tragluftmengenmessung mittels einer triboelektrische Effekte an in Strömungsrichtung der Tragluft hintereinander im Tragluftstrom angeordneten Sensoren auswertenden Korrelationsmesseinrichtung.

    Abstract translation: 本发明涉及的装置和用于控制Kohlekraftwerksfeuerungsanlage在燃烧研磨的煤的燃料 - 空气比,用于气动输送的研磨的煤到Kohlekraftwerksfeuerungsanlage的燃烧器的装置的方法和装置,用于提供燃烧用空气的燃烧器或在 包括Kohlekraftwerksfeuerungsanlage的燃烧室,并且其中能够进行燃烧的空气和载体空气量的量的控制。 本发明的目的是在低维护的空气量测量装置,用于测量所述燃烧空气的控制和空气的支撑量的高可靠性。 根据本发明,此目的是通过用于燃烧空气流量计,其摩擦电效应评估根据所述相关测量方法以连续地布置在所述燃烧空气在燃烧空气流量传感器的流动方向,从而测量所述燃烧空气的流率的测量装置来实现。 为了这个目的,细粒颗粒每空气的米3引入的新鲜空气中的20微米至200微米之间的颗粒直径为0.1毫克吸入至10mg。 粒子进入进入的新鲜空气只在启动Kohlekraftwerksfeuerungsanlage特别。 和通过的摩擦电效应装置承载空气流量测量优选在连续地布置在支撑空气流量传感器评估的相关性测量装置的承载空气的流动方向进行的。

    METHOD AND SYSTEM FOR SEPARATION OF CONTAMINANTS FROM COAL
    100.
    发明申请
    METHOD AND SYSTEM FOR SEPARATION OF CONTAMINANTS FROM COAL 审中-公开
    从煤中分离污染物的方法和系统

    公开(公告)号:WO2009010956A1

    公开(公告)日:2009-01-22

    申请号:PCT/IL2008/000936

    申请日:2008-07-08

    Abstract: This invention is directed to a novel method and system to separate magnetically non-susceptible impurities from coal intended for combustion, and it includes the removal of such impurities together with magnetically susceptible impurities that are collocated within the same lump of coal, prior to the combustion of the coal, by the use of the magnetic properties of the magnetically susceptible impurities. The invention is based on the fact that the former impurities are normally collocated in the same lumps of coal as the latter, especially as far as pyrite and cinnabar are concerned, provided the lumps have not been liberated, in particular, they meet the requirement that at least 50% by mass of the coal lumps should be at least 2 mm in maximum dimension.

    Abstract translation: 本发明涉及一种从预期用于燃烧的煤中分离磁性不敏感杂质的新方法和系统,其包括在燃烧之前除去这些杂质以及同时位于同一块煤中的易磁化杂质 的煤,通过使用磁性敏感的杂质的磁性。 本发明是基于以下事实:前者的杂质通常与后者相同的煤块组合,特别是在黄铁矿和辰砂方面,只要这些块未被释放,特别是满足以下要求: 煤块的至少50质量%应在最大尺寸上至少为2毫米。

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