公开(公告)号：JPS6036825A

公开(公告)日：1985-02-26

申请号：JP14612483

申请日：1983-08-10

Applicant: HITACHI LTD ,  BABCOCK HITACHI KK

Inventor： SOUMA KENICHI ,  ARASHI NORIO ,  AZUHATA SHIGERU ,  NARATO KIYOSHI ,  INADA TOORU ,  KOBAYASHI YOSHINOBU ,  OOTSUKA KEIZOU ,  HISHINUMA TAKAO ,  MASAI TADAHISA

IPC: F23N5/08 ,  G01J1/42

Abstract: PURPOSE:To enable highly precise control of a combustion flame without disturbance of a combustion flame, by measuring temperature distribution in a flame in non-contact manner. CONSTITUTION:In a plurality of positions in a combustion flame, spectral analysis is effected by a light detector 10, and vibration spectrum of the obtained OH is calculated to find temperature distribution in flame. A storing circuit 12 stores temperature distribution in flame measured under an optimum combustion condition. A comparing circuit 13 compares temperature distribution in flame at a present point of time, which is outputted from a computing circuit 11, with temperature distribution in flame under the stored optimum combustion condition, and a difference therebetween is outputted to a control circuit 14. The control circuit 14 inputs an output from the comparing circuit 13 to decide a proper control command to a control drive part and output a command as a control signal. The outputted control signal is fed to a control place to perform control of flame into an optimum combustion condition.

公开(公告)号：JPS59217405A

公开(公告)日：1984-12-07

申请号：JP9059983

申请日：1983-05-25

Applicant: Babcock Hitachi Kk

Inventor： TAKAHASHI YOSHITAKA ,  NAKASHITA SHIGETO ,  MASAI TADAHISA ,  MIGAKI HITOSHI ,  TADAKUMA YUUSUKE

IPC: F23C99/00 ,  F23D1/00 ,  F23C11/00

CPC classification number: F23D1/005

Abstract: PURPOSE:To reduce unburnt parts and nitrogen oxide by providing an evaporation region wherein fluid within atomizing fuel sprayed by an atomizer which atomizes slurry fuel is evaporated, between the atomizer and a furnace. CONSTITUTION:Slurry fuel 2 is blown out into a mixing chamber 6 through a nozzle 3, and mixed with vapor 4 injected from a vapor injection hole 5 and put into an atomized state. Further, the slurry fuel 2 passes through a through hole 7 and injected into an evaporation region 10 in the form of a mist-like atomizing fuel 15. The atomizing fuel 15 is supplied through a high temperature region 17 to the furnace 18. High temperature air of above 300 deg.C is supplied from a primary slit 11 toward the atomizing fuel in the vicinity of the through hole 7. High temperature air of above 300 deg.C is supplied from a secondary slit 12, between the inner surface wall of a sleeve 8 and the atomizing fuel 15 so as to evaporate the water content which has not been evaporated by the high temperature air, is further evaporated. As a result, nitrogen oxide and unburnt part can be reduced.

Abstract translation: 目的：通过提供一种蒸发区域来减少未燃部分和氮氧化物，其中雾化燃料喷雾的雾化燃料中的流体雾化浆料燃料在雾化器和炉之间蒸发。 构成：将浆料燃料2通过喷嘴3吹出到混合室6中，与从蒸气喷射孔5喷射的蒸汽4混合并进入雾化状态。 此外，浆料燃料2通过通孔7并注入雾状雾化燃料15形式的蒸发区域10.雾化燃料15通过高温区域17供应到炉子18中。高温 高于300度C的空气从通孔7附近的主狭缝11向雾化燃料供给。高于300℃的高温空气从第二狭缝12供给到第二狭缝12的内表面壁 套筒8和雾化燃料15进一步蒸发而蒸发未被高温空气蒸发的水分。 结果，可以减少氮氧化物和未燃烧部分。

公开(公告)号：JPS59191810A

公开(公告)日：1984-10-31

申请号：JP6621983

申请日：1983-04-14

Applicant: Babcock Hitachi Kk

Inventor： TAKAHASHI YOSHITAKA ,  MASAI TADAHISA ,  NAKASHITA SHIGETO ,  TADAKUMA YUUSUKE ,  KOYAMA ISAO

IPC: F23K1/04

Abstract: PURPOSE: To enable to perform stable system operation, by a method wherein slurry is prevented from overheating through control of a heating amount, and in case heating is effected, it is immediately restored to an original temperature.
CONSTITUTION: The pressure in a slurry heater 2 is measured and controlled by a pressure regulating transmitter 35 at the inlet of the heater, and meanwhile, the pressure in the heater 2 is measured and controlled by a pressure regulating transmitter 61. Two pressure detecting signals 100 and 101 are inputted to a pressure computer 91 in a control means 9, a difference in pressure between slurry and heated steam is found by the computer 91, a difference signal thereof is outputted as a control signal 200 to monitor it by means of an alarming lamp 93, and interlock for closing a pressure regulating valve 33 is effected. This increases the pressure of slurry, and enables steam to be inhibitted against production from slurry.
COPYRIGHT: (C)1984,JPO&Japio

Abstract translation: 目的：为了能够进行稳定的系统操作，通过控制加热量防止浆料过热的方法，并且在加热的情况下，立即恢复到原始温度。 构成：浆料加热器2中的压力由加热器入口处的压力调节传感器35测量和控制，同时加热器2中的压力由压力调节传感器61测量和控制。两个压力检测信号 100和101被输入到控制装置9中的压力计算机91，计算机91找到浆料和加热蒸汽之间的压力差，其差分信号作为控制信号200输出，以便通过 警报灯93和关闭压力调节阀33的互锁。 这增加了浆料的压力，并且使得蒸汽能够防止浆料生产。

公开(公告)号：JPS59191808A

公开(公告)日：1984-10-31

申请号：JP6451983

申请日：1983-04-14

Applicant: Babcock Hitachi Kk

Inventor： MASAI TADAHISA ,  UEMURA TOSHIO ,  MIGAKI HITOSHI ,  MORITA SHIGEKI ,  NAKASHITA SHIGETO ,  ITAGAKI KIICHI

IPC: F23D1/00 ,  F23C99/00

Abstract: PURPOSE: To reduce production of unburnt content in ash and NOX in exhaust gas without increasing the size of a device, by a method wherein unseparated and separated pulverized coal are conveyed by gas, composed of mainly the air, and combustion exhaust gas, respectively, to inject it in a furnace.
CONSTITUTION: Pulverized coal 1, conveyed by the air, is fed through a start conveyance pulverized coal pipe 2 to a cavity 3 where a part thereof is separated from an air current by the action occasioned by reduction in velocity of flow and production of eddy current and is stored in a hopper part 22 at the lower part of the cavity 3. After unseparated main fuel pulverized coal consisting of relatively fine particle is conveyed, as it is, through an unseparated pulverized coal coveyance pipe 20 by means of an air current, it is injected in a furnace 19 through a main injection nozzle 5, and is burnt under contact with a secondary air and a tertiary air injected through a secondary air injection nozzle 15 and a tertiary air injection nozzle 16. This enables reduction in production of unburnt content in ash and NOX in exhaust gas without increasing the size of a device.
COPYRIGHT: (C)1984,JPO&Japio

Abstract translation: 目的：为了减少废气中灰分和NO x中的未燃烧含量，而不增加装置的尺寸，通过分别由主要由空气和燃烧废气组成的气体输送未分离和分离的粉煤的方法， 将其注入炉中。 构成：通过空气输送的粉煤1通过起动输送粉煤管2供给到空腔3，其中其一部分与气流分离，由于流动速度的降低和涡流的产生而产生的作用 并存储在空腔3的下部的料斗部22中。在未分离的由较细粒子构成的主燃料粉煤原样通过未分离的粉煤输送管20通过气流输送的情况下， 通过主喷射喷嘴5将其注入炉19中，并在与二次空气和通过二次空气喷射喷嘴15和三次空气喷射喷嘴16喷射的三次空气接触的同时燃烧。这使得能够减少未燃烧的生产 废气中的灰分和NO x含量，而不增加装置的尺寸。

公开(公告)号：JPS59190114A

公开(公告)日：1984-10-27

申请号：JP6451683

申请日：1983-04-14

Applicant: Babcock Hitachi Kk

Inventor： TAKAHASHI YOSHITAKA ,  KOYAMA ISAO ,  TADAKUMA YUUSUKE ,  NAKASHITA SHIGETO ,  MASAI TADAHISA

IPC: B65G53/30

CPC classification number: B65G53/30

Abstract: PURPOSE:To easily retransport slurry without troubles such as blocking and the like by pressing a slurry structure medium to purge slurry to always keep the wall of a slurry transport pipe moist. CONSTITUTION:In case of purging for a pipeline 4c between a slurry tank 1 and a pump, an outlet valve 2A of the slurry tank 1 and an inlet valve 2B of the pump 3 are closed, and a big throw-in valve 7 and a big take-out valve 8 are opened. In such condition, a big 15 is thrown in at the big throw-in valve 7. Subsequently, a purge liquid pipeline 14A is connected to supply purge liquid, so that slurry in the pipeline 4c is pushed by the big 15 and a purge liquid 16 to be discharged to a waste slurry tank 10A. Then, big and a part of displaced purge liquid are discharged in the same manner. The same operation is sequentially conducted for a pipeline 4D between the pump 3 and a heater 5 and pipelines 4A, 4B between the heater 5 and the slurry tank 1. Thus, purge for pipelines in a transport system is completed.

Abstract translation: 目的：通过按压浆液结构介质以清除浆料，以便将淤浆输送管的壁保持湿润，以便容易地再次输送浆料，例如堵塞等问题。 构成：在浆料罐1和泵之间的管道4c的吹扫的情况下，浆料罐1的出口阀2A和泵3的入口阀2B关闭，大的投入阀7和 大取出阀8打开。 在这种情况下，在大投入阀7处引入大的15。随后，清洗液体管道14A被连接以供应清洗液体，使得管道4c中的浆料被大15推动，并且清洗液体 16排出到废浆槽10A。 然后，大部分和部分排出的清洗液以相同的方式排出。 对于泵3和加热器5之间的管道4D以及加热器5和浆料罐1之间的管道4A，4B，依次执行相同的操作。因此，完成了运输系统中的管道清洗。

公开(公告)号：JPS59180214A

公开(公告)日：1984-10-13

申请号：JP5276283

申请日：1983-03-30

Applicant: Babcock Hitachi Kk

Inventor： MASAI TADAHISA ,  MORITA SHIGEKI ,  UEMURA TOSHIO ,  MIGAKI HITOSHI

IPC: F23D1/00 ,  F23B40/04 ,  F23K3/02

Abstract: PURPOSE: To make it possible to excellently carry out the vapor phase reduction by connecting one or more coal crushers with a main fuel pipeline, and connecting at least a part of the coal crushers to a fine coal storage tank by a pipeline, and connecting the fine coal storage tank with the burner by an auxiliary fuel pipeline.
CONSTITUTION: A part of pulverized coals within coal crushers 12aW12c reaches a separator 14 via an extracting pipeline 13 and a main extracting pipe 23, and separated coals are stored in a fine coal storage tank 15. Further, a gas (primary air A) which has separated fine coals is eliminated of its remaining pulverized coals by other dust collector or the like, and thereafter is dispersed in atmospheric air or sometimes is charged in the furnace of the burner. The pulverized coals within the storage tank 15 are supplied to an auxiliary fuel supply pipeline 20 through a feeder 16, and supplied to the auxiliary fuel combustion part of each burner 10 by an inactive gas 18 such as an exhaust gas or the like of the burner. By this operation, a reducing flame is formed and NO
x generated in the main combustion flame is subjected to vapor phase reduction.
COPYRIGHT: (C)1984,JPO&Japio

Abstract translation: 目的：通过将一个或多个煤粉破碎机与主燃料管道连接，并通过管道将至少一部分煤粉破碎机连接到细煤储罐，使得可以优良地进行气相还原，并将 煤炭储罐采用辅助燃油管道燃烧器。 构成：煤粉破碎机12a-12c内的一部分粉煤通过提取管道13和主抽取管23到达分离器14，分离的煤被储存在细煤储罐15中。此外，气体（一次空气A ），其余的粉煤被其他集尘器等除去，然后分散在大气中或有时被装入燃烧器的炉中。 储罐15内的粉煤通过供料器16供给辅助燃料供给配管20，通过燃烧器等排气等惰性气体18供给到各燃烧器10的辅助燃料燃烧部 。 通过该操作，形成还原火焰，并且在主燃烧火焰中产生的NOx进行气相还原。

公开(公告)号：JPS59179160A

公开(公告)日：1984-10-11

申请号：JP5276083

申请日：1983-03-30

Applicant: Babcock Hitachi Kk

Inventor： MASAI TADAHISA ,  UEMURA TOSHIO ,  MIGAKI HITOSHI ,  MORITA SHIGEKI ,  NAKASHITA SHIGETO ,  KOUDA FUMIO

IPC: B02C15/00 ,  B02C15/12

公开(公告)号：JPS59176511A

公开(公告)日：1984-10-05

申请号：JP5075483

申请日：1983-03-25

Applicant: Babcock Hitachi Kk

Inventor： MASAI TADAHISA ,  UEMURA TOSHIO ,  MIGAKI HITOSHI ,  MORITA SHIGEKI ,  NAKASHITA SHIGETO

IPC: F23D99/00 ,  F23D1/00

CPC classification number: F23D1/005 ,  F23D2209/30

Abstract: PURPOSE:To prevent solidification of slurry which occurs in a burner and to perform safe and high-reliable combustion, by a method wherein purging fluid is caused to flow through a burner in prior to the starting of combustion, and thereafter, coal slurry is fed for combustion. CONSTITUTION:When the supply of pulverizied coal - water slurry (CWM) is started, an atomized fluid 7 is first caused to flow through a purging fluid valve 4 is then opened, the purging fluid is supplied to a nozzle tip 9, a CWM passage 6 is washed, and simultaneously, the CWM passage 6 and the nozzle tip 9 are cooled. After the purging fluid flows for a given time, a CWM valve 2 is opened, and CWM is caused to flow to the CWM passage 6. Simultaneously, the purging fluid valve 4 is closed. A method to stop the supply of the CWM is that above operations are completely reversed. It is essential that, when the CWM does not flows through the CWM passage 6, choking of the CWM passage with te CWM is prevented from occurring by preventing the CWM from being present within the CWM passage 6.

Abstract translation: 目的：为了防止在燃烧器中发生的浆料固化并进行安全可靠的燃烧，通过在燃烧开始之前使清洗流体通过燃烧器的方法，然后将煤浆进料 用于燃烧。 构成：当开始粉碎煤 - 水浆料（CWM）的供应时，首先使雾化流体7流过清洗流体阀4然后打开，将清洗流体供应到喷嘴头9，CWM通道 6，同时将CWM通道6和喷嘴头9冷却。 在吹扫流体流动给定时间之后，打开CWM阀2，并使CWM流到CWM通道6.同时，清洗流体阀4关闭。 停止供应CWM的方法是上述操作完全相反。 当CWM不通过CWM通道6时，必须防止CWM通过CWM通道6阻止CWM通道与CWM的阻塞。

公开(公告)号：JPS59173606A

公开(公告)日：1984-10-01

申请号：JP4716383

申请日：1983-03-23

Applicant: Babcock Hitachi Kk ,  Hitachi Ltd

Inventor： ARASHI NORIO ,  AZUHATA SHIGERU ,  NARATO KIYOSHI ,  INADA TOORU ,  SOUMA KENICHI ,  KOBAYASHI YOSHINOBU ,  OOTSUKA KEIZOU ,  HISHINUMA TAKAO ,  MASAI TADAHISA

IPC: F23D1/00 ,  F23C99/00

Abstract: PURPOSE: To provide a burner of low NO
x for fine coal capable of reducing a volume of generated NO
x by a method wherein NO
x generated from nitrogen in a char can also be reduced.
CONSTITUTION: A circular ejector 13 is arranged in a secondary air nozzle 12, holes 14 arranged at a wall surface of a nozzle 11 for mixed fluid of primary air and fine coal are communicated with holes 16 arranged at an ejector throat 15 through a pipe 17. Both primary air fed from the coal crushing machine and fluid having fine coal mixed therein are injected from a nozzle 11 for mixed fluid of fine coal together with the primary air. In turn, a secondary air 19 passes through the circular ejector 13 and is injected from a secondary air nozzle 12. A primary flame is formed by fine coals injected from the fine coal mixed fluid nozzle 11 together with the primary air, and a secondary flame is formed by fine coal injected from a secondary air nozzle. Thus, it is possible to reduce NO
x generated in the secondary flame by reducing substance found in the primary flame.
COPYRIGHT: (C)1984,JPO&Japio

Abstract translation: 目的：提供一种能够通过其中可以减少由炭中的氮产生的NOx的方法来减少产生的NOx的体积的细煤的低NOx燃烧器。 构成：在二次空气喷嘴12中设置圆形喷射器13，布置在用于一次空气和细煤的混合流体的喷嘴11的壁面上的孔14通过配管17与排出喷嘴喉15的孔16连通 从煤粉碎机供给的一次空气和混合有细煤的流体从一次空气与细煤混合流体用喷嘴11喷出。 继而，二次空气19通过圆形喷射器13并从二次空气喷嘴12喷射。一次火焰由细煤混合流体喷嘴11与一次空气一起喷射的细煤炭形成，二次火焰 由从二次空气喷嘴喷射的细煤形成。 因此，可以通过在一次火焰中发现的还原物质来还原二次火焰中产生的NOx。

公开(公告)号：JPS59145406A

公开(公告)日：1984-08-20

申请号：JP1738483

申请日：1983-02-07

Applicant: Babcock Hitachi Kk

Inventor： MORITA SHIGEKI ,  MASAI TADAHISA ,  KOUDA FUMIO ,  ORIMOTO MANABU ,  UEMURA TOSHIO ,  MIGAKI HITOSHI

IPC: F23N5/24 ,  F23C99/00 ,  F23K3/02

Abstract: PURPOSE: To simplify the construction of the titled device and cause the device to bear the maximum load to facilitate the burner control by forming a set of coal supply systems by a plurality of coal mills and providing a pipe system for distributing the load to respective burners when a coal pulverizer causes malfunction.
CONSTITUTION: A main burner 41 and a denitration burner 61 are supplied with pulverized coal from a coal mill 4a. A main burner 42 and a denitration burner 62 is supplied with pulverized coal from a mill 4b. The mills 4a and 4b constitute a set of coal supply systems. At the time of a normal operation mode of the combustion furnace 10A, the burners 31, 32, 51 and 52 is operated by 16.5% pulverized coal supply, the denitration burners 61 and 62 by 9.5% pulverized coal supply and the main burners 41 and 42 by 8.5% pulverized coal supply. The bearing quantites of respective burners in a case where the mill 4b is assumed to be in trouble, the main burners 31, 32, 51 and 52 are supplied with 20% of pulverized coal, respectively. The mill 4a bears 20% of the total load. The pulverized coal delivered from the mill 4a, is distributed by 10% for each of the denitration burners 61 and 62. The total 100% of the pulverized coal supply, that is, 80% summed up by 20% for each of main burners 31, 32, 51 and 52, and 10% for each of the denitration burners, 61 and 62 is secured, and further denitration is smoothly carried out.
COPYRIGHT: (C)1984,JPO&Japio

Abstract translation: 目的：为了简化标称装置的结构，并使装置承受最大负载，以便通过由多台煤粉机组成一套供煤系统来提供燃烧器控制，并提供一个用于将负载分配给相应燃烧器的管道系统 当煤粉碎机引起故障时。 构成：主燃烧器41和脱硝燃烧器61从磨煤机4a供给粉煤。 主燃烧器42和脱硝燃烧器62从磨机4b供给粉煤。 研磨机4a和4b构成一组供煤系统。 在燃烧炉10A的正常操作模式时，燃烧器31,32,51和52由粉煤供应量16.5％，脱硝燃烧器61和62由粉煤供应量9.5％和主燃烧器41和 42加8.5％粉煤供应。 在假设磨机4b处于故障的情况下，各燃烧器的轴承量化，主燃烧器31,32,51和52分别被供给20％的粉煤。 磨机4a占总负载的20％。 从磨机4a输送的粉煤分别为每个脱硝燃烧器61和62分配10％。对于每个主燃烧器31，粉煤供应的总计100％，即80％总和了20％ ，32,51和52以及每个脱硝燃烧器61和62的10％，并进一步进行脱硝。