公开(公告)号：US06237510B1

公开(公告)日：2001-05-29

申请号：US09043425

申请日：1998-03-19

Applicant: Toshikazu Tsumura ,  Kenji Kiyama ,  Tadashi Jimbo ,  Shigeki Morita ,  Koji Kuramashi ,  Kunio Okiura ,  Shinichiro Nomura ,  Miki Mori ,  Noriyuki Ohyatsu ,  Noboru Takarayama ,  Toshihiko Mine ,  Hironobu Kobayashi ,  Hirofumi Okazaki

Inventor： Toshikazu Tsumura ,  Kenji Kiyama ,  Tadashi Jimbo ,  Shigeki Morita ,  Koji Kuramashi ,  Kunio Okiura ,  Shinichiro Nomura ,  Miki Mori ,  Noriyuki Ohyatsu ,  Noboru Takarayama ,  Toshihiko Mine ,  Hironobu Kobayashi ,  Hirofumi Okazaki

IPC: F23C110

CPC classification number: F23D1/00 ,  F23C2201/20 ,  F23C2202/40 ,  F23C2900/09002 ,  F23D2201/20 ,  F23D2209/20 ,  F23K2201/103

Abstract: A combustion burner includes a mixture nozzle (2) defining a mixture fluid passage through which a mixture fluid (1) containing pulverized coal and conveyor gas flows toward a furnace, secondary and tertiary air passages surrounding the mixture nozzle (2), through which secondary air (6) and tertiary air (9) for combustion purposes flow, respectively; and air injection nozzles (24) provided in the vicinity of an outer periphery of a distal end of the mixture nozzle (2). The air (21) is injected from the air injection nozzles (24) toward the axis of the mixture nozzle, so that the high-temperature gas in the vicinity of the outer periphery of the distal end of the mixture nozzle (2) is drawn into the mixture fluid (1) in the vicinity of the outer periphery of this distal end.

Abstract translation: 燃烧器包括限定混合流体通道的混合喷嘴（2），含有粉煤和输送气体的混合流体（1）通过该混合流体通道流向炉子，二次和三次空气通道围绕混合物喷嘴（2），二次 空气（6）和三次空气（9）分别用于燃烧目的流动; 以及设置在混合喷嘴（2）的前端的外周附近的空气喷射喷嘴（24）。 空气（21）从空气注入喷嘴（24）朝向混合喷嘴的轴线注入，使得混合喷嘴（2）的远端外周附近的高温气体被拉出 在该远端的外周附近的混合流体（1）中。

公开(公告)号：US5960723A

公开(公告)日：1999-10-05

申请号：US15836

申请日：1998-01-29

Applicant: Scott A. Vierstra ,  John J. Letcavits

Inventor： Scott A. Vierstra ,  John J. Letcavits

IPC: F23C7/00 ,  F23K3/02 ,  F23M9/02 ,  F23J15/00 ,  F23B5/02

CPC classification number: F23K3/02 ,  F23C7/00 ,  F23M9/02 ,  F23C2201/20 ,  F23D2205/00 ,  F23K2201/103 ,  F23K2900/01041

Abstract: A method and apparatus retrofitted to a multiple-intertube pulverized-coal burner to reduce NO.sub.x emissions of roof fired boilers. An internal two stage process controls the amount of secondary air which flows to the burner. The first stage includes a secondary air damper and air flow station to regulate the amount of air which flows into a windbox of the burner. A baffle plate assembly which includes a plurality of baffle plates further limits the amount of air which flows to the core of the burner for combustion of the fuel. The baffle plates create a pressure drop within the windbox which forces or diverts a quantity of air to the periphery of the burner. The second stage includes an outlet formed in the hot primary air duct, an air plenum which communicates therewith, and a plurality of interjectory air ports which correspond with the burners in number and position along a front wall of the boiler and which communicate with the air plenum. The interjectory air ports inject interjectory air into a combustion chamber of the boiler at a substantially 90 degree angle to the direction of a plurality of burner tips of each burner and supplies the balance of the required theoretical combustion air needed to complete combustion of the fuel. A plurality of probes measure the amount of primary air, secondary air and interjectory air and signal a command loop circuit to adjust the secondary air dampers and interjectory air ports accordingly.

Abstract translation: 改造为多管间粉煤燃烧器以减少屋顶燃烧锅炉的NOx排放的方法和装置。 内部两级过程控制流入燃烧器的二次空气量。 第一级包括二次空气阻尼器和空气流动站，以调节流入燃烧器的风箱中的空气量。 包括多个挡板的挡板组件进一步限制了流入燃烧器芯的空气量，用于燃烧燃料。 挡板在风箱内形成一个压力降，它将一定数量的空气推到燃烧器的外围。 第二级包括形成在热的主空气管道中的出口，与其连通的空气通风室，以及沿着锅炉前壁的数量和位置对应的燃烧器的多个相互连接的空气端口，并与空气连通 全会。 间隔空气端口将空间空气以与每个燃烧器的多个燃烧器尖端的方向成大致90度角的方式喷射到锅炉的燃烧室中，并提供燃料完全燃烧所需的理论燃烧空气的平衡。 多个探头测量一次空气，二次空气和空中空气的量，并且发出一个命令循环电路，以相应地调节二次空气阻尼器和插入空气端口。

公开(公告)号：US12031720B2

公开(公告)日：2024-07-09

申请号：US17269012

申请日：2019-11-19

Applicant: MITSUBISHI POWER, LTD.

Inventor： Yuichiro Urakata ,  Koji Nishimura ,  Jun Kasai

IPC: F23K1/04 ,  C10J3/46 ,  F23K3/02

CPC classification number: F23K1/04 ,  C10J3/46 ,  F23K3/02 ,  F23K2200/00 ,  F23K2201/103 ,  F23K2201/20 ,  F23K2900/05001

Abstract: An object of the present invention is to provide a pulverized coal drying system for a pulverizer, a pulverized coal drying method therefor, a pulverized coal drying program, a pulverizer, and an integrated gasification combined cycle capable of stably drying a carbonaceous feedstock irrespective of the type of the carbonaceous feedstock to be used. There is provided a controller (50) of a pulverizer (10) that dries a supplied carbonaceous feedstock by using a drying fluid and includes a flow rate controller that controls the flow rate of the drying fluid within upper and lower limits of the flow rate of the drying fluid that are set to dry a plurality of types of the carbonaceous feedstock having different moisture contents in such a way that the temperature of the drying fluid discharged from the pulverizer (10) approaches a target temperature.

公开(公告)号：US09631809B2

公开(公告)日：2017-04-25

申请号：US15284794

申请日：2016-10-04

Applicant: General Electric Technology GmbH

Inventor： Scott L. Darling ,  Edward S. Saldon

IPC: F01N3/10 ,  F23D1/00 ,  F23L15/04

CPC classification number: F23D1/005 ,  F01N3/10 ,  F23K2201/103 ,  F23K2201/20 ,  F23K2900/01041 ,  F23L15/04 ,  Y02E20/348

Abstract: A system 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, two fuel gas streams at different temperatures, a booster air heater and a fuel duct for feeding dried pulverized fuel to a combustion furnace.

公开(公告)号：US20140076210A1

公开(公告)日：2014-03-20

申请号：US14122447

申请日：2011-09-30

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD

Inventor： Takuichiro Daimaru ,  Tsugio Yamamoto ,  Kenichi Arima ,  Masaaki Kinoshita ,  Kazuhiro Tekeuchi ,  Norichika Kai ,  Yoshishige Uematsu

IPC: B02C15/00 ,  B02C23/26 ,  B02C15/04 ,  F23K3/00 ,  F23G5/033

CPC classification number: B02C15/001 ,  B02C15/007 ,  B02C15/045 ,  B02C23/26 ,  F23C2900/01001 ,  F23G5/033 ,  F23K1/00 ,  F23K1/04 ,  F23K3/00 ,  F23K3/02 ,  F23K2201/1006 ,  F23K2201/103 ,  F23K2201/30

Abstract: The present invention includes: a mill main body with a material feed pipe for feeding a biomass material from above in a vertical axis direction; a mill table on which the fed biomass material is placed; a drive unit rotating and driving the mill table; a mill roller that operates in conjunction with rotation of the mill table to mill the biomass material by a pressing force; and a ventilation means that forms an upward flow to blow out a carrier gas to convey milled biomass powder, wherein the mill main body has a barrel part decreased in diameter in the middle thereof in the vertical axis direction, and the mill main body has on a top plate thereof a plurality of discharge tubes circumferentially arranged for discharging the biomass powder on a line extended from the diameter-decreased barrel part in the vertical axis direction.

Abstract translation: 本发明包括：具有从上方沿垂直轴方向进给生物质材料的材料供给管的轧机主体; 在其上放置饲养的生物质材料的研磨台; 驱动单元旋转并驱动轧机台; 轧辊，其与轧机台的旋转一起工作，以通过按压力来磨碎生物质材料; 以及通风装置，其形成向上的流动以吹出载气以输送研磨的生物质粉末，其中所述轧机主体具有在其中间在垂直轴线方向上直径减小的筒部，并且所述轧机主体已经开 其顶板具有多个沿圆周方向设置的放电管，用于将生物质粉末沿垂直轴线方向从直径减小的筒部延伸的线上排出。

公开(公告)号：US08661821B2

公开(公告)日：2014-03-04

申请号：US13040016

申请日：2011-03-03

Applicant: Xu Zhao ,  Maikui Zhang ,  Yan Dou ,  Yongzhong Jiang ,  Jinwen Shi

Inventor： Xu Zhao ,  Maikui Zhang ,  Yan Dou ,  Yongzhong Jiang ,  Jinwen Shi

IPC: F01K7/34 ,  B09B3/00

CPC classification number: F26B3/084 ,  F01K7/22 ,  F01K7/40 ,  F01K17/06 ,  F23K1/04 ,  F23K2201/103 ,  F23K2201/20 ,  F23K2203/002 ,  F23K2203/104 ,  F23K2900/01041 ,  Y02E20/12 ,  Y02P70/40

Abstract: The present invention relates to a process for reducing coal consumption in coal fired plant with fluidized-bed drying, namely a fluidized-bed drying system is provided between a coal powder bunker as well as a weighing belt and a coal grinding mill of the prior coal fired boiler generating set, and superheated steam which has done partial work is extracted from an steam turbine and used as a drying medium, moisture contained in the coal powder is evaporated with sensible heat and latent heat of the superheated steam, water resulted from the condensation of the superheated steam is fed into a deaerator of the steam turbine via a condensate pump for recirculation. The present invention has advantages of reducing coal consumption and saving coal, recovering residual heat, reducing emission of carbon dioxide and adopting to the national industrial policy on energy saving and emission reduction.

Abstract translation: 本发明涉及一种通过流化床干燥来降低燃煤发电厂煤耗的方法，即在煤粉仓和称重带之间设置流化床干燥系统和现有煤的煤磨机 燃烧锅炉发电机组，从蒸汽轮机抽出部分作业的过热蒸汽，作为干燥介质，煤粉中所含的水分由显热和过热蒸汽的潜热，冷凝产生的水蒸发 的过热蒸汽通过用于再循环的冷凝泵进入蒸汽轮机的除气器。 本发明具有减少煤耗，节约煤炭，回收余热，减少二氧化碳排放，采取国家节能减排工业政策的优势。

公开(公告)号：US08573520B2

公开(公告)日：2013-11-05

申请号：US13144445

申请日：2010-01-21

Applicant: Paul Goedert ,  Markus Mayer ,  Georges Stamatakis ,  Bernard Cauwenberghs

Inventor： Paul Goedert ,  Markus Mayer ,  Georges Stamatakis ,  Bernard Cauwenberghs

IPC: B02C19/00

CPC classification number: C10B57/10 ,  B02C23/30 ,  B02C23/34 ,  C21B5/003 ,  C21B9/00 ,  F23K1/04 ,  F23K2201/103 ,  F23K2201/20 ,  F26B1/005 ,  F26B17/103 ,  F26B21/04 ,  F26B23/001 ,  Y02E50/30 ,  Y02P70/405

Abstract: A method for producing pulverized coal including the steps of providing a drying gas heated to a predefined temperature in a hot gas generator; feeding the heated drying gas into a pulverizer; introducing raw coal into the pulverizer, the pulverizer grinding the raw coal into pulverized coal; collecting a mixture of drying gas and pulverized coal from the pulverizer and feeding the mixture to a filter, the filter separating the dried pulverized coal from the drying gas; collecting the dried pulverized coal for further use and feeding the drying gas from the filter to an exhaust line; and collecting the drying gas exiting the filter and feeding part of the collected drying gas to a recirculation line for feeding recirculation drying gas to the hot gas generator. According to an important aspect of the present invention, the step of providing the drying gas includes feeding a variable flow rate of hot stove waste gas to the hot gas generator through a hot stove waste gas line so as to maximize the amount of hot stove waste gas used as drying gas. A pressure of the drying gas at a pulverizer gas inlet is controlled by regulating a flow rate of the hot stove waste gas through the hot stove waste gas line.

Abstract translation: 一种生产粉煤的方法，包括以下步骤：在热气发生器中提供加热到预定温度的干燥气体; 将加热的干燥气体进料到粉碎机中; 将原煤引入粉碎机中，粉碎机将原煤研磨成粉煤​​; 从粉碎机收集干燥气体和粉煤的混合物，并将混合物送入过滤器，过滤器将干燥的粉煤与干燥气体分离; 收集干燥的粉煤进一步使用，并将干燥气体从过滤器供给到排气管线; 并收集离开过滤器的干燥气体并将收集的干燥气体的一部分供给到用于将再循环干燥气体供给到热气体发生器的再循环管线。 根据本发明的重要方面，提供干燥气体的步骤包括通过热炉废气管线向热气发生器供给可变流量的热炉废气，以便最大限度地发挥热炉废物的量 气体用作干燥气体。 通过调节热炉废气通过热炉废气管线的流量来控制粉碎机气体入口处的干燥气体的压力。

公开(公告)号：US20130055935A1

公开(公告)日：2013-03-07

申请号：US13697618

申请日：2011-05-12

Applicant: Kazuhiro Takeuchi ,  Takuichiro Daimaru ,  Masaaki Kinoshita ,  Yoshiki Yamaguchi ,  Norichika Kai

Inventor： Kazuhiro Takeuchi ,  Takuichiro Daimaru ,  Masaaki Kinoshita ,  Yoshiki Yamaguchi ,  Norichika Kai

IPC: B02C15/00 ,  F23K1/00 ,  B02C23/24

CPC classification number: F23K1/00 ,  B02C15/003 ,  B02C15/004 ,  B02C15/007 ,  C10L5/04 ,  C10L5/366 ,  C10L5/44 ,  F23C2900/01001 ,  F23G5/033 ,  F23G2201/60 ,  F23G2201/602 ,  F23G2201/70 ,  F23K1/04 ,  F23K2201/10 ,  F23K2201/103 ,  F23K2201/30 ,  F23K2201/501 ,  Y02E50/10 ,  Y02E50/30

Abstract: A biomass pulverizing apparatus includes a pulverizing apparatus body including a feedstock supply pipe for supplying biomass feedstock from above in a vertical axial direction, a pulverizing table for placing the biomass feedstock, a drive section for rotationally driving the pulverizing table, a pulverizing roller for pulverizing the biomass feedstock by a pressing force, the pulverizing roller being operated in conjunction with the rotation of the pulverizing table, a blower means for forming an upward flow upward from below on the outer peripheral side of the pulverizing table so as to jet conveying gas for conveying the biomass powder in an air stream, and a classifier for classifying the biomass powder accompanied with the conveying gas.

Abstract translation: 生物质粉碎装置包括：粉碎装置主体，包括从上方沿垂直轴向供给生物质原料的原料供给管，用于放置生物质原料的粉碎台，用于旋转驱动粉碎台的驱动部，用于粉碎的粉碎辊 通过按压力的生物质原料，粉碎辊与粉碎台的旋转一起操作;鼓风机装置，用于在粉碎台的外周侧从下方向上流动，以便喷射输送气体， 将生物质粉末输送到空气流中;以及分级器，用于分配伴随输送气体的生物质粉末。

公开(公告)号：US20120006025A1

公开(公告)日：2012-01-12

申请号：US13201190

申请日：2009-12-10

Applicant: Yoshinori Koyama ,  Takashi Yamamoto ,  Osamu Shinada ,  Hiromi Ishii ,  Hitoji Yamada ,  Shozo Kaneko ,  Kimishiro Tokuda ,  Isao Mochida ,  Tatsurou Harada

Inventor： Yoshinori Koyama ,  Takashi Yamamoto ,  Osamu Shinada ,  Hiromi Ishii ,  Hitoji Yamada ,  Shozo Kaneko ,  Kimishiro Tokuda ,  Isao Mochida ,  Tatsurou Harada

IPC: F01K13/00 ,  F26B25/06

CPC classification number: F23K1/04 ,  F01K9/003 ,  F23J2217/102 ,  F23K2201/101 ,  F23K2201/103 ,  F23K2201/20 ,  F23K2203/104

Abstract: A thermal power plant that uses low-grade coal as fuel and allows for increased thermal efficiency of the entire plant is provided. The thermal power plant includes a drying device (3) that dries the low-grade coal to be supplied to a lignite mill (coal pulverizer) (4), and a drying-gas heater (13) that heats air to be supplied to the drying device (3) so as to be used for drying the low-grade coal. A condenser (12) and the drying-gas heater (13) are connected with each other via a heat exchanger (19), and exhaust heat from the condenser (12) is used as a heat source for heating the air.

Abstract translation: 提供了使用低等级煤作为燃料并允许整个工厂的热效率提高的火力发电厂。 火力发电厂包括干燥装置（3），其干燥要供应到褐煤磨（煤粉碎机）（4））的低级煤，以及干燥气体加热器（13），其将供给到 干燥装置（3），用于干燥低档煤。 冷凝器（12）和干燥气体加热器（13）通过热交换器（19）彼此连接，并且来自冷凝器（12）的排气用作用于加热空气的热源。

公开(公告)号：US20110220744A1

公开(公告)日：2011-09-15

申请号：US13040016

申请日：2011-03-03

Applicant: Xu Zhao ,  Maikui Zhang ,  Yan Dou ,  Yongzhong Jiang ,  Jinwen Shi

Inventor： Xu Zhao ,  Maikui Zhang ,  Yan Dou ,  Yongzhong Jiang ,  Jinwen Shi

IPC: B02C21/00

CPC classification number: F26B3/084 ,  F01K7/22 ,  F01K7/40 ,  F01K17/06 ,  F23K1/04 ,  F23K2201/103 ,  F23K2201/20 ,  F23K2203/002 ,  F23K2203/104 ,  F23K2900/01041 ,  Y02E20/12 ,  Y02P70/40

Abstract: The present invention relates to a process for reducing coal consumption in coal fired plant with fluidized-bed drying, namely a fluidized-bed drying system is provided between a coal powder bunker as well as a weighing belt and a coal grinding mill of the prior coal fired boiler generating set, and superheated steam which has done partial work is extracted from an steam turbine and used as a drying medium, moisture contained in the coal powder is evaporated with sensible heat and latent heat of the superheated steam, water resulted from the condensation of the superheated steam is fed into a deaerator of the steam turbine via a condensate pump for recirculation. The present invention has advantages of reducing coal consumption and saving coal, recovering residual heat, reducing emission of carbon dioxide and adopting to the national industrial policy on energy saving and emission reduction.

Abstract translation: 本发明涉及一种通过流化床干燥来降低燃煤发电厂煤耗的方法，即在煤粉仓和称重带之间设置流化床干燥系统和现有煤的煤磨机 燃烧锅炉发电机组，从蒸汽轮机抽出部分作业的过热蒸汽，作为干燥介质，煤粉中所含的水分由显热和过热蒸汽的潜热，冷凝产生的水蒸发 的过热蒸汽通过用于再循环的冷凝泵进入蒸汽轮机的除气器。 本发明具有减少煤耗，节约煤炭，回收余热，减少二氧化碳排放，采取国家节能减排工业政策的优势。