公开(公告)号：US11692705B2

公开(公告)日：2023-07-04

申请号：US16973891

申请日：2020-04-23

Applicant: MITSUBISHI POWER, LTD.

Inventor： Kenji Kiyama ,  Kenichi Ochi ,  Shohei Mito ,  Kosuke Kitakaze ,  Toshihiko Mine

IPC: F23D1/00

CPC classification number: F23D1/00 ,  F23D2201/10 ,  F23D2201/20

Abstract: A solid fuel burner to be inserted into a burner throat bored in a wall portion of a furnace, comprising: a solid fuel nozzle for ejecting mixed fluid of solid fuel and primary air; a secondary air nozzle for ejecting secondary air; a tertiary air nozzle for ejecting tertiary air; a secondary air guide member for guiding a flow of the secondary air outwardly in a radial direction; and one or more tertiary air guide members for guiding a flow of the tertiary air outwardly in the radial direction at a first angle with respect to a central axis (C) of the solid fuel burner, wherein a distal end position (X2) of each of the tertiary air guide members in an axial direction of the solid fuel burner is at a closer side of the furnace than a distal end position (X1) of the secondary air guide member.

公开(公告)号：US20180224119A1

公开(公告)日：2018-08-09

申请号：US15770510

申请日：2016-10-28

Applicant: OUTOTEC (FINLAND) OY

Inventor： Peter BJÖRKLUND ,  Elli MIETTiNEN ,  Aki LAANINEN ,  Sarianna SUOMINEN ,  Kaj EKLUND

IPC: F23D1/02 ,  F23C7/00

CPC classification number: F23D1/02 ,  F23C7/002 ,  F23D1/00 ,  F23D2201/20

Abstract: Provided are a burner such as a concentrate burner, a calcine burner, or a matte burner, or a burner using a mixture of these for feeding reaction gas and fine solids into a reaction shaft of a suspension smelting furnace, and a fine solids feeding apparatus for a burner such as a concentrate burner, a calcine burner, or a matte burner, or a burner using a mixture of these. The fine solids feeding apparatus comprises gas outlets in a fine solids discharge channel upstream of a downstream outlet end of the fine solids discharge channel. The gas outlets comprise spiral path guiding members configured to facilitate gas to flow from the gas outlets in a spiral flow path around a center axis A of the fine solids discharge channel.

公开(公告)号：US20180058687A1

公开(公告)日：2018-03-01

申请号：US15244243

申请日：2016-08-23

Applicant: General Electric Technology GmbH

Inventor： Todd D. Hellewell ,  Bryan Walter Mruk ,  Christopher David Siriani

IPC: F23D1/00 ,  F23D1/02 ,  F23L9/02

CPC classification number: F23D1/005 ,  F22B29/065 ,  F23C6/047 ,  F23C7/02 ,  F23C2201/101 ,  F23D1/02 ,  F23D2201/20 ,  F23L9/02

Abstract: The present application provides a tangentially fired boiler. The tangentially fired boiler may include a combustion chamber and an overfire air system positioned about the combustion chamber. The overfire air system may include a number of overfire air windboxes positioned in a horizontal orientation.

公开(公告)号：US09822968B2

公开(公告)日：2017-11-21

申请号：US14411729

申请日：2013-04-24

Applicant: IHI Corporation

Inventor： Masato Tamura ,  Ryunosuke Itokazu

IPC: F23L7/00 ,  F23D1/02 ,  F23K3/02 ,  F23L9/00 ,  F23C7/02

CPC classification number: F23D1/02 ,  F23C7/02 ,  F23D2201/20 ,  F23K3/02 ,  F23L7/007 ,  F23L9/00 ,  Y02E20/344

Abstract: A burner comprises a nozzle main body (7) which is installed along a central axis of a throat (4) provided on a furnace wall (3) and comprises an inner nozzle (11) in which an auxiliary combustion air (24) flows and an outer nozzle (9) which is provided on an outer side and concentrically with the inner nozzle and in which a pulverized coal mixed flow (18) obtained by mixing a carrying medium with a pulverized coal flow, a wind box (5) for accommodating the nozzle main body, a secondary air regulator (8) accommodated in the wind box and provided at a tip portion of the nozzle main body, an auxiliary combustion air intake pipe (23) for introducing a combustion air as an auxiliary combustion air (22) into the inner nozzle from the wind box, a pulverized coal flow supply pipe (16) for introducing a pulverized coal mixed flow into the outer nozzle, and an oxygen-containing gas supply pipe (17) for supplying an oxygen-containing gas (19) to the pulverized coal mixed flow and raising the oxygen concentration in the pulverized coal mixed flow.

公开(公告)号：US09752777B2

公开(公告)日：2017-09-05

申请号：US14372309

申请日：2013-09-05

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Curtis Taylor ,  Brad Patterson ,  Jayson Perdue

IPC: F23D1/00 ,  F23C6/04 ,  F23L7/00

CPC classification number: F23L7/007 ,  F23C6/045 ,  F23C2201/20 ,  F23D1/00 ,  F23D2201/00 ,  F23D2201/20 ,  F23D2900/00006 ,  Y02E20/344

Abstract: A burner assembly combines oxygen and fuel to produce a flame. The burner assembly includes an oxygen supply tube adapted to receive a stream of oxygen and a solid fuel conduit arranged to extend through the oxygen tube to convey a stream of fluidized, pulverized, solid fuel into a flame chamber. Oxygen flowing through the oxygen supply tube passes generally tangentially through a first set of oxygen-injection holes formed in the solid fuel conduit and off-tangentially from a second set of oxygen-injection holes formed in the solid fuel conduit and then mixes with fluidized, pulverized, solid fuel passing through the solid fuel conduit to create an oxygen-fuel mixture in a downstream portion of the solid fuel conduit. This mixture is discharged into a flame chamber and ignited in the flame chamber to produce a flame.

公开(公告)号：US20150226431A1

公开(公告)日：2015-08-13

申请号：US14619420

申请日：2015-02-11

Applicant: ALSTOM Technology Ltd

Inventor： Dragisa RISTIC ,  Thomas HILBER ,  Patrick MOENCKERT ,  Frank Michael KLUGER

IPC: F23Q3/00 ,  F23D1/00

CPC classification number: F23Q3/00 ,  F23D1/00 ,  F23D1/04 ,  F23D2201/10 ,  F23D2201/20 ,  F23D2207/00 ,  F23Q3/008 ,  F23Q9/00

Abstract: The igniter lance include a lance fuel duct for pulverised fuel and an electric igniter for ignition of the pulverized fuel passing through the lance fuel duct.

Abstract translation: 点火器喷枪包括用于粉碎燃料的喷枪燃料管道和用于点燃通过喷枪燃料管道的粉碎燃料的电点火器。

公开(公告)号：US08950345B2

公开(公告)日：2015-02-10

申请号：US13643747

申请日：2011-04-26

Applicant: Yupeng Wang ,  Hong Tang ,  Yuwang Miao ,  Wucheng Liu ,  Jingwu Zhang ,  Yubin Zhang ,  Shuweng Sun ,  Xingyuan Cui ,  Xixin Yang ,  Xinguang Wang ,  Zeru Gong ,  Lei Yi ,  Yingtao Wang

Inventor： Yupeng Wang ,  Hong Tang ,  Yuwang Miao ,  Wucheng Liu ,  Jingwu Zhang ,  Yubin Zhang ,  Shuweng Sun ,  Xingyuan Cui ,  Xixin Yang ,  Xinguang Wang ,  Zeru Gong ,  Lei Yi ,  Yingtao Wang

IPC: F23D1/00 ,  F23K3/02 ,  F23C7/00

CPC classification number: F23D1/00 ,  F23C7/006 ,  F23D2201/20

Abstract: A pulverized coal burner and a pulverized coal boiler. The coal burner comprises a primary air cylinder (111) and a pulverized coal concentration device (112). The coal concentration device (112) makes the concentration of the coal flow gradually decrease from inside to outside along the radial direction, with respect to an axis (100) of the primary air cylinder (111). The coal burner further comprises a coal separating cylinder (113) and a coal guiding cylinder (114) located downstream of the device (112), the rear end of the cylinder (113) is connected with the front end of the coal guiding cylinder (114). The outlet of the cylinder (114) has a conical expansion portion (1141). The coal burner further comprises a divergent nozzle (115) connected with the rear end of the primary air cylinder (111) and whose cross-sectional area gradually increases along the flow direction of the coal flow.

Abstract translation: 粉煤燃烧器和粉煤锅炉。 煤燃烧器包括主气缸（111）和粉煤浓缩装置（112）。 煤浓缩装置（112）使得煤流的浓度相对于主气缸（111）的轴线（100）沿径向从内向外逐渐减小。 煤燃烧器还包括煤分离筒（113）和位于装置（112）下游的导煤筒（114），气缸（113）的后端与导煤筒（ 114）。 气缸（114）的出口具有锥形膨胀部分（1141）。 煤燃烧器还包括与主气缸（111）的后端连接的扩散喷嘴（115），其横截面积沿着煤流的流动方向逐渐增加。

公开(公告)号：US08584605B2

公开(公告)日：2013-11-19

申请号：US11002382

申请日：2004-12-02

Applicant: Curtis L. Taylor

Inventor： Curtis L. Taylor

IPC: F23D1/00

CPC classification number: F23C6/045 ,  F23C2900/06041 ,  F23D1/00 ,  F23D2201/00 ,  F23D2201/20 ,  F23D2900/00003 ,  F23D2900/14002 ,  F23K3/02 ,  F23K2203/008 ,  F23L7/007 ,  F23M5/025 ,  Y02E20/322 ,  Y02E20/344

Abstract: A burner assembly combines oxygen and fuel to produce a flame. The burner assembly includes an oxygen supply tube adapted to receive a stream of oxygen and a fuel supply tube arranged to extend through the oxygen tube to convey a stream of fluidized, pulverized, solid fuel into a flame chamber. Oxygen flowing through the oxygen supply tube passes through oxygen-injection holes formed in the fuel supply tube and then mixes with fluidized, pulverized, solid fuel passing through the fuel supply tube to create an oxygen-fuel mixture in a downstream portion of the fuel supply tube. This mixture is discharged into the flame chamber and ignited in a flame chamber to produce a flame.

Abstract translation: 燃烧器组件结合了氧气和燃料以产生火焰。 燃烧器组件包括适于接纳氧气流的供氧管和设置成延伸穿过氧气管的燃料供应管，以将流化的，粉碎的固体燃料流输送到火焰室中。 氧气供应管中的氧气通过形成在燃料供应管中的氧气注入孔，然后与通过燃料供应管的流化，粉碎，固体燃料混合，在燃料供应管的下游部分产生氧 - 燃料混合物 管。 将该混合物排放到火焰室中并在火焰室中点燃产生火焰。

公开(公告)号：US08561553B2

公开(公告)日：2013-10-22

申请号：US12640404

申请日：2009-12-17

Applicant: Gregory L. Morse ,  Ivo Slezak ,  Paulo Cavalcanti

Inventor： Gregory L. Morse ,  Ivo Slezak ,  Paulo Cavalcanti

IPC: F23D1/00 ,  F23K3/02

CPC classification number: F23D1/00 ,  F23D2201/101 ,  F23D2201/20 ,  F23D2211/00

Abstract: A solid fuel nozzle tip for issuing a flow of mixed solid fuel and air into a boiler or furnace includes an outer nozzle body having an outer flow channel extending therethrough from an inlet to an outlet of the outer nozzle body. An inner nozzle body has an inner flow channel extending therethrough from an inlet to an outlet of the inner nozzle body. The inner nozzle body is mounted within the outer nozzle body with the inner flow channel inboard of and substantially aligned with the outer flow channel. The inner and outer nozzle bodies are joined together so as to accommodate movement relative to one another due to thermal expansion and contraction of the outer and inner nozzle bodies.

Abstract translation: 用于将混合的固体燃料和空气流引入锅炉或炉中的固体燃料喷嘴头包括外部喷嘴体，其具有从外部喷嘴体的入口到出口延伸穿过的外部流动通道。 内部喷嘴体具有从内部喷嘴体的入口到出口延伸穿过的内部流动通道。 内部喷嘴体安装在外部喷嘴体内，内部流动通道内侧并与外部流动通道基本对准。 内部和外部喷嘴体连接在一起，以便由于外部和外部喷嘴体的热膨胀和收缩而适应彼此的移动。

公开(公告)号：US08545726B2

公开(公告)日：2013-10-01

申请号：US13437579

申请日：2012-04-02

Applicant: Johannes Hermanus Maria Disselhorst

Inventor： Johannes Hermanus Maria Disselhorst

IPC: F23D1/00 ,  C01B3/02

CPC classification number: F23D1/005 ,  C01B3/02 ,  C10J3/485 ,  C10J3/506 ,  C10J2200/152 ,  C10J2300/093 ,  C10J2300/0933 ,  C10J2300/0936 ,  C10J2300/1223 ,  F23D1/00 ,  F23D91/02 ,  F23D2201/20 ,  F23D2214/00 ,  F23D2900/00006 ,  F23L7/00 ,  F23L7/007 ,  F23L2900/07005

Abstract: A burner includes a burner front having annular and central openings. The annular opening, for discharging a solid fuel, fluidly connects to a central passage way. The central opening, for discharging an oxygen containing gas, fluidly connects to an annular passage way for passage of oxygen positioned co-axial with the central passage way. The central passage way has a downstream part and a diameter that increases over a first length and subsequently decreases over a second length terminating at the burner front. Inside the downstream part a hollow member is positioned which is closed at one end and has an opening at or near the burner front, and has increasing and decreasing diameters aligned with the increasing and decreasing diameters of the central passage way forming an annular passage. The hollow member fluidly connects with the annular passage way for the oxygen containing gas via one or more connecting conduits.

Abstract translation: 燃烧器包括具有环形和中心开口的燃烧器前端。 用于排出固体燃料的环形开口流体地连接到中央通道。 用于排出含氧气体的中心开口流体地连接到环形通道，用于与中心通道同轴定位的氧气通过。 中心通道具有下游部分和直径，其在第一长度上增加，随后在终止于燃烧器前端处的第二长度上减小。 在下游部分中，定位中空构件，其在一端封闭并且在燃烧器前部处或附近具有开口，并且具有与形成环形通道的中心通道的增加和减小直径对应的增加和减小的直径。 中空构件通过一个或多个连接管道与用于含氧气体的环形通道流体连接。