公开(公告)号：US09636684B2

公开(公告)日：2017-05-02

申请号：US14388123

申请日：2013-03-25

Applicant: Mitsubishi Hitachi Power Systems, Ltd.

Inventor： Yutaka Takeno ,  Hiroaki Kanemoto ,  Teruaki Tatsuma ,  Hideo Mitsui ,  Takashi Aizawa

IPC: B02C15/00 ,  F23K1/00 ,  B02C23/12

CPC classification number: B02C15/007 ,  B02C15/001 ,  B02C23/12 ,  F23K1/00 ,  F23K2201/103

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.

公开(公告)号：US20170023244A1

公开(公告)日：2017-01-26

申请号：US15284794

申请日：2016-10-04

Applicant: General Electric Technology GmbH

Inventor： Scott L. DARLING ,  Edward S. SALDON

IPC: 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.

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高水分燃料的系统。 燃烧系统包括用于粉碎燃料的粉碎机，空气加热器，不同温度下的两个燃料气体流，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。

公开(公告)号：US08899163B2

公开(公告)日：2014-12-02

申请号：US13697610

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: F23K1/00 ,  F23G5/033 ,  B02C15/00 ,  B02C23/40 ,  C10L5/36 ,  F23G7/10 ,  F23K1/04 ,  B02C23/24 ,  C10L5/04 ,  C10L5/44

CPC classification number: F23G5/033 ,  B02C15/007 ,  B02C23/24 ,  B02C2015/002 ,  C10L5/04 ,  C10L5/366 ,  C10L5/44 ,  F23C2900/01001 ,  F23G7/10 ,  F23G2201/60 ,  F23G2201/602 ,  F23K1/00 ,  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, the pulverizing apparatus body 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 unit 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 pulverized biomass powder in an air stream, a classifier, the classifier for classifying the biomass powder accompanied with the conveying gas, and a blowing gas introduction section.

Abstract translation: 一种生物质粉碎装置，包括：粉碎装置主体，包括原料供给管，用于从上方沿垂直轴向供给生物质原料的粉碎装置主体;用于放置生物质原料的粉碎台;旋转驱动粉碎台的驱动部; 用于通过按压力粉碎生物质原料的粉碎辊，粉碎辊与粉碎台的旋转一起操作;鼓风机单元，用于在粉碎台的外周侧从下方向上流动，以便 用于将用于输送空气流中的粉碎生物质粉末的输送气体，分选机，用于分选伴随输送气体的生物质粉末的分选机和吹送气体导入部。

公开(公告)号：US20140069083A1

公开(公告)日：2014-03-13

申请号：US13923633

申请日：2013-06-21

Applicant: ALSTOM Technology Ltd

Inventor： Scott L. DARLING ,  Edward S. SADLON

IPC: F01N3/10

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

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。

公开(公告)号：US20110271587A1

公开(公告)日：2011-11-10

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: C10L5/40

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：US20100327090A1

公开(公告)日：2010-12-30

申请号：US12877742

申请日：2010-09-08

Applicant: Vladimir Havlena ,  Jaroslav Pekar ,  Daniel Pachner

Inventor： Vladimir Havlena ,  Jaroslav Pekar ,  Daniel Pachner

IPC: B02C23/00

CPC classification number: F23K1/00 ,  B02C15/007 ,  B02C25/00 ,  F23K2201/1006 ,  F23K2201/103

Abstract: The subject mater 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: 这里的主题涉及煤粉磨机，更具体地说，涉及一种煤磨机内的推断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。

公开(公告)号：US20100006013A1

公开(公告)日：2010-01-14

申请号：US12503038

申请日：2009-07-14

Applicant: Patrick Potter

Inventor： Patrick Potter

IPC: F23G5/04 ,  F26B3/10 ,  F26B17/00 ,  F26B23/02 ,  F26B21/00

CPC classification number: F23G5/04 ,  B02C18/142 ,  F23G5/46 ,  F23G2201/10 ,  F23G2201/80 ,  F23G2206/10 ,  F23G2209/12 ,  F23G2209/30 ,  F23K1/04 ,  F23K2201/103 ,  F23K2201/20 ,  F26B23/028 ,  F26B25/005 ,  Y02P70/40

Abstract: A process for energy recovery and transfer including: warming fresh air in a heat recovery and pressure control unit; feeding waste feed and the warm fresh air into a processor; reducing a moisture content of the waste feed by breaking the waste feed into a fuel powder in the warm fresh air in the processor; filtering contaminated air through an initial filter to remove the fuel powder from the contaminated air; pre-heating the contaminated air in the heat recovery and pressure control unit; raising the temperature of the pre-heated contaminated air in a chamber; passing the chamber discharge air through the heat recovery and pressure control unit to pre-heat contaminated air passing on to the chamber and to warm fresh air passing on to the processor; and filtering terminal air through a terminal filter to remove particles from the terminal air.

Abstract translation: 一种能量回收和转移的过程，包括：在热回收和压力控制单元中加热新鲜空气; 将废物进料和温暖的新鲜空气送入处理器; 通过将处理器中的新鲜空气中的废物进料分解成燃料粉末来减少废料的含水量; 通过初始过滤器过滤污染的空气，以从污染的空气中除去燃料粉末; 在热回收和压力控制单元中预热受污染的空气; 提高室内预热污染空气的温度; 通过室排出空气通过热回收和压力控制单元，以预热通过该室的受污染空气，并且加热传递到处理器的新鲜空气; 并通过终端过滤器过滤终端空气以从终端空气中除去颗粒。

公开(公告)号：US07261046B1

公开(公告)日：2007-08-28

申请号：US10866355

申请日：2004-06-10

Applicant: Terry W. Rettig ,  T. Steven I. Torbov ,  Thomas D. Burnett ,  Kimble J. Clark

Inventor： Terry W. Rettig ,  T. Steven I. Torbov ,  Thomas D. Burnett ,  Kimble J. Clark

IPC: F23J15/00

CPC classification number: F23C9/003 ,  F23C2202/50 ,  F23J15/006 ,  F23J2217/101 ,  F23J2217/102 ,  F23K1/00 ,  F23K2201/103 ,  F23L15/04 ,  Y02E20/348

Abstract: The present invention is a system and method of reducing nitrogen oxides in coal combustion exhaust gases and preventing fire and explosion in pulverized coal systems. The present invention first cools the flue gas exiting a boiler of the pulverized coal system with an air preheater. The present invention removes any particles such as fly ash from the cooled flue gas with an electro-static precipitor or a bag house and recirculates the flue gas. The temperature of the recirculated flue gas is adjusted to a desired temperature and is injected into the pulverizer with combustion air from the air preheater, creating a safer environment for pulverizing the fuel. This mixture of pulverized fuel, air and flue gas is then burned in the boiler, resulting in a cleaner output containing significantly less nitrous oxide.

Abstract translation: 本发明是减少煤燃烧废气中的氮氧化物并防止粉煤系统中的火灾和爆炸的系统和方法。 本发明首先用空气预热器冷却离开粉煤系统的锅炉的烟气。 本发明通过静电沉淀器或袋式室从冷却的烟道气中除去飞灰等颗粒，并再循环烟道气。 将再循环烟道气的温度调节到所需温度，并用来自空气预热器的燃烧空气注入粉碎机，为燃料粉碎创造更安全的环境。 然后将粉末状燃料，空气和烟道气的混合物在锅炉中燃烧，产生含有显着较少一氧化二氮的清洁剂输出。

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。