用于运行用至少一台磨煤机工作的燃烧设备的装置和方法

    公开(公告)号:CN101245917A

    公开(公告)日:2008-08-20

    申请号:CN200810004836.3

    申请日:2008-02-04

    CPC classification number: B02C23/04 F23K3/02 F23K2201/103

    Abstract: 本发明涉及用于运行用至少一台磨煤机工作的燃烧设备的装置和方法。本发明的装置用来关断在磨煤机上游的初次空气管,以便在燃烧设备运行时对磨煤机进行修理或维护作业,每台磨煤机包括:将热初次空气输入磨煤机的第一初次空气管;将冷初次空气在混合部位掺入第一初次空气管的第二初次空气管,混合部位设置在磨煤机上游;第一调节闸门和第二调节闸门,两个调节闸门设置在混合部位上游,第一调节闸门设计有密封条;在初次空气流一侧的在混合部位和磨煤机之间的设计有串联叶片的关断闸门,串联叶片支承在中心,在串联叶片的两个叶片之间形成空腔,关断闸门设计有密封条;卸压管,它与处于关闭位置的串联叶片的空腔连通,卸压管具有卸压闸门。

    Booster air heater for high moisture fuels
    33.
    发明授权
    Booster air heater for high moisture fuels 有权
    增压空气加热器用于高水分燃料

    公开(公告)号:US09482127B2

    公开(公告)日:2016-11-01

    申请号:US13923633

    申请日:2013-06-21

    Abstract: A system and method for drying pulverized high moisture fuel for use in a selective catalytic reduction system equipped combustion system is provided. The combustion system includes a mill for pulverizing fuel, an air heater, a booster air heater and a fuel duct for feeding dried pulverized fuel to a combustion furnace.

    Abstract translation: 提供了一种用于干燥用于选择性催化还原系统的燃烧系统中的粉碎的高水分燃料的系统和方法。 燃烧系统包括用于粉碎燃料的粉碎机,空气加热器,增压空气加热器和用于将干燥的粉碎燃料供给到燃烧炉的燃料管道。

    Vertical Pulverizing Apparatus
    34.
    发明申请
    Vertical Pulverizing Apparatus 有权
    立式粉碎设备

    公开(公告)号:US20150321197A1

    公开(公告)日:2015-11-12

    申请号:US14388123

    申请日:2013-03-25

    Abstract: Provided is a vertical pulverizing apparatus capable of suppressing abrasion of throat vanes (40) and elongating their abrasion resistant lives to thereby increase working efficiency. The vertical pulverizing apparatus is characterized in that: a throat (4) is provided between a housing (32) and a pulverizing table (2) and has an annular flow channel which is surrounded by a throat inner peripheral wall (41) and a throat outer peripheral wall (42) and which is partitioned by a large number of throat vanes (40); and a slope part (43a, 43b) extending diagonally downward from an inner peripheral wall surface of the housing (32) toward a top end of the throat outer peripheral wall (42) and a horizontal part (44) extending from a bottom end of the slope part (43b) continuously to the top end of the throat outer peripheral wall (42) are provided so that top end surfaces (40a) of the throat vanes (40) and a top surface of the horizontal part (44) can be set at the same height.

    Abstract translation: 提供一种能够抑制喉叶(40)的磨损并延长其耐磨损寿命从而提高工作效率的立式粉碎装置。 立式粉碎装置的特征在于:在壳体(32)和粉碎台(2)之间设置有喉部(4),并且具有由喉部内周壁(41)和喉部 外周壁(42),并被大量喉叶(40)分隔; 以及从所述壳体(32)的内周壁面朝向所述喉部外周壁(42)的上端向对角地延伸的倾斜部(43a,43b)和从所述喉部外周壁(42)的上端延伸的水平部(44) 连接到喉部外周壁(42)的顶端的倾斜部分(43b)设置成使得喉部叶片(40)的顶端表面(40a)和水平部分(44)的顶表面可以是 设置在相同的高度。

    Method and apparatus for calcining gypsum
    36.
    发明授权
    Method and apparatus for calcining gypsum 有权
    煅烧石膏的方法和设备

    公开(公告)号:US07621474B2

    公开(公告)日:2009-11-24

    申请号:US11374689

    申请日:2006-03-14

    Applicant: Dale E. Miller

    Inventor: Dale E. Miller

    CPC classification number: F23K1/04 C04B11/028 F23K2201/103 F23K2201/30

    Abstract: The subject invention relates generally to methods and apparatuses for calcining gypsum. The apparatuses and methods place a gypsum particle optimizer in close association with the impact mill so that all the gypsum supplied to the impact mill has to enter the gypsum particle optimizer prior to the gypsum entering the impact mill, and so that heat generated from the impact mill enters into the gypsum particle optimizer from the impact mill. The gypsum particle optimizer utilizes a rotor to disperse the gypsum throughout the gypsum particle optimizer so that the gypsum is exposed to the heat from the impact mill prior to entering the impact mill. The exposure to the heat removes free water from the gypsum prior to the gypsum entering the impact mill.

    Abstract translation: 本发明一般涉及煅烧石膏的方法和装置。 设备和方法将石膏颗粒优化器与冲击式研磨机紧密结合,使得提供给冲击式磨机的所有石膏必须在石膏进入冲击式磨机之前必须进入石膏颗粒优化器,并使冲击产生的热量 磨机从冲击式磨机进入石膏颗粒优化器。 石膏颗粒优化器利用转子将石膏分散在整个石膏颗粒优化器中,使得石膏在进入冲击式研磨机之前暴露于冲击式研磨机的热量。 在石膏进入冲击磨之前,暴露于热量将从石膏中除去游离水。

    Inferential pulverized fuel flow sensing and manipulation within a coal mill
    37.
    发明申请
    Inferential pulverized fuel flow sensing and manipulation within a coal mill 有权
    煤磨机内​​推进粉煤燃料流量检测与操纵

    公开(公告)号:US20080230637A1

    公开(公告)日:2008-09-25

    申请号:US11726149

    申请日:2007-03-21

    Abstract: The subject matter herein relates to coal mills and, more particularly, inferential pulverized fuel flow sensing and manipulation within a coal mill. Various embodiments provide systems, methods, and software to manipulate a primary air flow rate and a coal feed rate into a coal mill to produce a target pulverized fuel flow. Some embodiments include sensing a differential pressure between two or more locations within a coal mill to estimate a recirculated load of coal at one or more stages within the coal mill.

    Abstract translation: 本发明的主题涉及煤粉磨机,更具体地说,涉及一种煤磨机内的推进粉煤燃料流量检测和操作。 各种实施例提供了系统,方法和软件,以操纵初级空气流量和进入煤碾磨机的煤进料速率以产生目标粉化燃料流。 一些实施例包括感测在煤磨机内的两个或更多个位置之间的压差以估计在煤磨机内的一个或多个阶段的煤的再循环负载。

    Biomass-grinding device, and system for combusting mixture of biomass and coal
    38.
    发明专利
    Biomass-grinding device, and system for combusting mixture of biomass and coal 有权
    生物量研磨装置和用于燃烧生物质和煤的混合物的系统

    公开(公告)号:JP2011240222A

    公开(公告)日:2011-12-01

    申请号:JP2010112464

    申请日:2010-05-14

    Abstract: PROBLEM TO BE SOLVED: To provide a biomass-grinding device which efficiently, stably grinds a biomass raw material; and to provide a system for combusting a mixture of biomass and coal.SOLUTION: The biomass-grinding device includes: a grinding device body 13 having a raw material-feeding pipe 12 which feeds a biomass raw material 11 from above in a vertical axis direction; a grinding table 14 on which the biomass raw material 11 is placed; a driving part 15 which rotatively drives the grinding table 14; grinding rollers 16 which operate in connection with the rotation of the grinding table 14 and grinds the biomass raw material 11 by means of pressing force; a blower means which generates a rising air current which flows, in an upward direction, from below the side of the external periphery of the grinding table 14 and spouts out a carrier gas 18 which carries the ground biomass raw material 17 by the air current; and a classifier 19 which classifies the ground biomass raw material 17 which accompanies the carrier gas. In addition, a plurality of radial table grooves are formed on the surfaces of the table liners 14b of the grinding table 14 from their internal peripheral parts toward the external edge sides thereof, and the front ends of the grooves are located up to the vicinities of the center parts of the table liners.

    Abstract translation: 要解决的问题:提供一种有效稳定地研磨生物质原料的生物质研磨装置; 并且提供用于燃烧生物质和煤的混合物的系统。 生物质研磨装置包括:研磨装置主体13,具有:原料供给管12,其沿上下方向从上方供给生物质原料11; 在其上放置生物质原料11的研磨台14; 驱动磨床14的驱动部15; 研磨辊16,其与研磨台14的旋转相联动,并通过按压力研磨生物质原料11; 鼓风机装置,其产生从研磨台14的外周侧向下方向上流动的上升气流,并且喷出由气流携带地面生物质原料17的载气18; 以及分类器19,其对伴随载气的地面生物质原料17进行分类。 此外,在研磨台14的工作台衬片14b的表面上,从其内周部朝向其外缘侧形成有多个径向台槽,槽的前端位于 桌子的中心部分。 版权所有(C)2012,JPO&INPIT

    System and method for low load operation of coal mill

    公开(公告)号:US09746179B2

    公开(公告)日:2017-08-29

    申请号:US13835768

    申请日:2013-03-15

    Inventor: Peter Stegelitz

    Abstract: Disclosed herein is a coal fed power generation system comprising a mill in fluid communication with a furnace; where the mill is operative to pulverize coal and to ventilate the coal; where the furnace contains more than one burner or burner nozzles; where the burner or burner nozzles are operative to receive the coal from the mill and combust it in the furnace; and a plurality of flow control devices; where at least one flow control device is in fluid communication with the mill and with the burner or burner nozzle; and where the flow control device that is in fluid communication with the mill and with the burners or burner nozzles is closed to prevent fluid communication between the mill and the furnace during the operation of the furnace.

    FUEL PREPARATION APPARATUS AND METHOD
    40.
    发明申请
    FUEL PREPARATION APPARATUS AND METHOD 审中-公开
    燃料制备装置和方法

    公开(公告)号:US20150226426A1

    公开(公告)日:2015-08-13

    申请号:US14434791

    申请日:2013-10-18

    Abstract: An apparatus and method for fuel preparation for example by milling and drying to produce a pulverous fuel supply are described. The apparatus includes a fuel preparation unit adapted to receive a mixture of fuel and a gas and to prepare the fuel for combustion in a pulverous state; an output conduit defining an output flow path for a mixture of pulverous fuel and gas from the fuel preparation unit; a phase separator disposed to receive the mixture from the output conduit and to separate the mixture into a gas phase comprising at least a major part of the gas from the mixture and a fuel phase comprising the pulverous fuel; a gas phase conduit defining a flow path for the gas phase from the separator; a heat exchanger preferably being a process fluid heat exchanger such as a feed water heat recovery heat exchanger fluidly connected to the gas phase conduit and adapted to receive and dry the gas phase. The method applies the principles embodied in the apparatus.

    Abstract translation: 描述了用于燃料制备的设备和方法,例如通过研磨和干燥以产生粉末燃料供应。 该装置包括:燃料制备单元,适于接收燃料和气体的混合物,并制备用于燃烧的粉末状燃料; 输出导管,其限定用于来自燃料制备单元的粉状燃料和气体的混合物的输出流动路径; 相分离器,设置成从输出管道接收混合物,并将混合物分离成气相,该气相包含来自混合物的至少大部分气体和包含粉状燃料的燃料相; 气相导管,其限定来自分离器的气相的流动路径; 热交换器优选地是流体传热热交换器,例如流体连接到气相导管并适于接收和干燥气相的给水热回收热交换器。 该方法适用于装置中体现的原则。

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