JPS6053714A - Combustion device for pulverized coal - Google Patents
Combustion device for pulverized coalInfo
- Publication number
- JPS6053714A JPS6053714A JP58161227A JP16122783A JPS6053714A JP S6053714 A JPS6053714 A JP S6053714A JP 58161227 A JP58161227 A JP 58161227A JP 16122783 A JP16122783 A JP 16122783A JP S6053714 A JPS6053714 A JP S6053714A
- Authority
- JP
- Japan
- Prior art keywords
- pulverized coal
- gas
- air
- partial pressure
- coal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Feeding And Controlling Fuel (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は微粉炭を燃焼させる装置に係り、特に微粉炭
の安定燃焼および、微粉炭輸送の安全性を高めた装置に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for burning pulverized coal, and more particularly to an apparatus that achieves stable combustion of pulverized coal and enhances the safety of pulverized coal transportation.
第１図は従来の石炭燃焼ボイラの系統図である。符号ｌ
はボイラで、火炉２で発生した燃焼ガスは、誘引通風機
７で生じた圧力差により、電気集じん器４．３分割（ト
ライセクタ）型空気予熱器６を通って系外に出る。一方
、二次空気Ａ２は、３分割型空気予熱器６で前記燃焼ガ
スと熱交換し、高湿の空気となって主風道１２を通って
バーナ風箱２３に至る。一方煙道５から取り出された燃
焼ガスの一部は再循環ガス煙道１３を通り、−Ｆ’ｊ循
環ガス投入口１４を経てボイラ火炉内に供給されて窒素
酸化物の発生を抑制するために使用され、残りは一次再
循環ガス煙道１５に送られる。FIG. 1 is a system diagram of a conventional coal-fired boiler. code l
is a boiler, and the combustion gas generated in the furnace 2 passes through an electrostatic precipitator 4, a tri-sector air preheater 6, and exits from the system due to the pressure difference generated by the induced draft fan 7. On the other hand, the secondary air A2 exchanges heat with the combustion gas in the three-part air preheater 6, becomes highly humid air, passes through the main air passage 12, and reaches the burner air box 23. On the other hand, a part of the combustion gas taken out from the flue 5 passes through the recirculating gas flue 13 and is supplied into the boiler furnace via the -F'j recirculating gas inlet 14 to suppress the generation of nitrogen oxides. The remainder is sent to the primary recycle gas flue 15.
さらに−次空気Ａ、の一部は３分割型空気予熱器６を通
って加熱され、熱空気となって一次熱空気風道１６に送
られ、−次空気Ａ１の残りは未加熱の状態で一次冷空気
風道１７に送られる。−次再循環ガス、−次熱空気およ
び一次冷空気は、−次再循環ガス煙道１８で混合されて
微粉炭機１９に送られる。Furthermore, a part of the primary air A1 is heated through the three-part air preheater 6 and sent to the primary hot air duct 16 as hot air, and the rest of the primary air A1 remains unheated. The primary cold air is sent to the air passage 17. The secondary recirculation gas, secondary hot air and primary cold air are mixed in the secondary recirculation gas flue 18 and sent to the pulverizer 19 .
微粉炭機１９では、給炭管２２から送られた原炭が一次
再循環ガス煙道１８からのガスで適正に乾燥されて、粉
砕され微粉炭管２０を介してバーナ風箱２３に備えられ
た微粉炭バーナに送られる。In the pulverizer 19 , the raw coal sent from the coal feed pipe 22 is properly dried with gas from the primary recirculation gas flue 18 , pulverized, and delivered to the burner wind box 23 via the pulverized coal pipe 20 . The coal is sent to a pulverized coal burner.
ここで微粉炭器１９に対して供給される燃焼ガスおよび
空気の混合気体の役割は、微粉炭の適正な乾燥、微粉炭
の安定した気流輸送、バーナ部における燃焼用−次空気
としての利用という点にある。Here, the role of the mixture of combustion gas and air supplied to the pulverizer 19 is to properly dry the pulverized coal, to transport the pulverized coal in stable airflow, and to use it as secondary air for combustion in the burner section. At the point.
以上の構成の装置においては次の点が問題点として指摘
されており、その改善が望まれている。The following points have been pointed out as problems in the apparatus having the above configuration, and improvement thereof is desired.
（１） ｌａ粉炭機に供給される気体の温度は相当高く
、微粉炭機および管路中に堆積がある場合や、微粉炭機
が緊急停止され、、微粉炭器用ロダンバが急閉された場
合等に粉塵爆発する虞れがある。すなわち、混合気体は
石炭の乾燥を行うため、例えば３００〜４００°Ｃの高
温であるが、微粉炭が流動中はこの高温でも着火の虞れ
は殆んどないが、前述の理由により微粉炭の流れが止ま
ると着火の危険性は急激に増大する。具体的には、揮発
分４０％の微粉炭の場合、浮遊状態での着火温度は約５
８０℃であり問題はないが、堆積状態での着火温度は約
１７０℃に低下し爆発の危険性は急激に増大する。(1) The temperature of the gas supplied to the la coal pulverizer is quite high, and if there is accumulation in the pulverizer and pipes, or if the pulverizer is stopped in an emergency and the pulverizer rodan bar is suddenly closed. There is a risk of dust explosion. In other words, the mixed gas is at a high temperature of, for example, 300 to 400°C in order to dry the coal, but while the pulverized coal is flowing, there is little risk of ignition even at this high temperature. When the flow of water stops, the risk of ignition increases rapidly. Specifically, in the case of pulverized coal with a volatile content of 40%, the ignition temperature in a suspended state is approximately 5
Although the temperature is 80°C, which poses no problem, the ignition temperature in the deposited state drops to about 170°C, and the risk of explosion increases rapidly.
（２）＠粉炭機に供給する気体は微粉炭燃焼の一次空気
として利用されるものであるため気体中の酸素分圧は一
定の値以下は下げることはできない。すなわち爆発防止
の観点からは気体中の酸素分圧は低い方が良いが、他方
−次空気として利用するため酸素分圧をあまり低くする
とバーナにおける燃焼が不安定となってしまう。結局微
粉炭機に供給する気体を燃焼用−次空気としてそのまま
利用する限り常に爆発の危険性がある。(2) Since the gas supplied to the coal pulverizer is used as primary air for combustion of pulverized coal, the partial pressure of oxygen in the gas cannot be lowered below a certain value. That is, from the viewpoint of explosion prevention, it is better to have a low oxygen partial pressure in the gas, but on the other hand, if the oxygen partial pressure is too low because it is used as secondary air, combustion in the burner will become unstable. After all, as long as the gas supplied to the pulverizer is used as is as secondary air for combustion, there is always a risk of explosion.
（３） ボイラに直接供給する二次空気と微粉炭機に供
給する一次空気とを各々別個に加熱するため空気予熱器
は三分割型の複雑な構造とせざるを得ない。三分割型空
気予熱器では、高温高圧を要する一次空気と比較的低温
低圧でよい二次空気とを同時に加熱するため工作上に問
題が多く、またガスリーク、ドラフトロス等の問題もあ
る。(3) In order to separately heat the secondary air that is directly supplied to the boiler and the primary air that is supplied to the pulverizer, the air preheater must have a complicated three-part structure. The three-part air preheater simultaneously heats the primary air, which requires high temperature and high pressure, and the secondary air, which requires relatively low temperature and low pressure, which poses many problems in terms of construction, as well as problems such as gas leaks and draft loss.
この発明は上述の問題点を解決し微粉炭の爆発を防止し
、かつ微粉炭の適正乾燥、適正燃焼を行うことができ、
しかも複雑高価な三分割型空気予熱器を不用とした微粉
炭燃焼装置を提供することにある。This invention solves the above-mentioned problems, prevents explosion of pulverized coal, and enables proper drying and proper combustion of pulverized coal.
Moreover, it is an object of the present invention to provide a pulverized coal combustion device that does not require a complicated and expensive three-part air preheater.
要するにこの発明は微粉炭器に対しては再循環ガス等の
低０２の気体を供給する管路を接続して低０□分圧下で
微粉炭の粉砕、乾燥を行い、かつ微粉炭出口側で空気を
混入することによりバーナ部で適正な燃焼を行い得るよ
うにした微粉炭燃焼装置である。In short, this invention connects a pipe line for supplying low 02 gas such as recirculating gas to the pulverizer, and pulverizes and dries the pulverized coal under a low 0□ partial pressure, and at the same time, the pulverized coal outlet side This is a pulverized coal combustion device that allows proper combustion in the burner section by mixing air.
以下この発明の実施例につき説明する。Examples of the present invention will be described below.
第２図において、煙道５に対して空気予熱器３０の上流
側と下流側の各々において高温ガス通路３１と低温ガス
通路３２が接続し、各ガス通路はガス主通路３３に合流
して微粉炭機１９に接続している。３４及び３５は各通
路に設けたダンパである。In FIG. 2, a high-temperature gas passage 31 and a low-temperature gas passage 32 are connected to the flue 5 on the upstream and downstream sides of the air preheater 30, respectively, and each gas passage joins a main gas passage 33 to form a fine powder. It is connected to coal machine 19. 34 and 35 are dampers provided in each passage.
次に２０は微粉炭管路であり微粉炭機１９で製造した微
粉炭をボイラｌのバーナまで気流輸送する管路である。Next, reference numeral 20 is a pulverized coal pipe, which is a pipe for air flow transporting the pulverized coal produced by the pulverizer 19 to the burner of the boiler l.
一方空気予熱器３０の上流側と下流側の主風道１２に対
しては、各々冷空気管路３６及び加熱空気管路３７が接
続してあり、各管路は合流して空気管路３８となる。こ
の空気管路は微粉炭管路２゜に設けた混合器３９に接続
する。４０．４１は前記各管路３６，３７に各々設けた
ダンノザである。４２は記憶と指令信号を発する制御箱
であり、混合器３９の上流側に配置した温度指示器４３
及び給炭器２１に取り付けた給炭量指示器４４の計測信
号を入力し、かつダンパ３４，３５を制御するよう構成
しである。On the other hand, a cold air pipe line 36 and a heated air pipe line 37 are connected to the main air passages 12 on the upstream side and downstream side of the air preheater 30, respectively, and each pipe line joins to form an air pipe line 38. becomes. This air line is connected to a mixer 39 located in the pulverized coal line 2°. Reference numerals 40 and 41 indicate dunnosaurs provided in each of the conduits 36 and 37, respectively. 42 is a control box that emits memory and command signals, and a temperature indicator 43 located upstream of the mixer 39.
It is configured to input a measurement signal from a coal feed amount indicator 44 attached to the coal feeder 21 and to control the dampers 34 and 35.
次に符号４５は別の制御箱であり、ガス主管路３３に設
けた流量指示器４６． ０２量指示器４７．前記給炭量
指示器４４、および混合器３９の下流側の微粉炭管路２
０に配置した温度指示器４８の計測信号を入力し、かつ
ダンパ４．０．４．１を制御するよう構成している。Next, reference numeral 45 is another control box, which is a flow rate indicator 46 provided in the main gas pipeline 33. 02 quantity indicator 47. The coal feed amount indicator 44 and the pulverized coal pipe line 2 downstream of the mixer 39
The damper 4.0.4.1 is configured to input a measurement signal from a temperature indicator 48 placed at 0, and to control the damper 4.0.4.1.
以上の構成になる装置の作動状態について以下説明する
。制御箱４２に対しては給炭量指示器４４により計測し
た給炭量が微粉炭機１９の負荷信号として人力され、制
御箱４２はあらかじめ入力しておいたガス流■、ガス湿
度と給炭量の関係に基づき、適正な乾燥が行えかつ良好
な気流輸送を行えるガス温度、ガス流量を算出し、これ
に基づいてダンパ３４．．３５の開度を調節して高温ガ
スと低温ガスの混合比率および合計量を調節する。The operating state of the device having the above configuration will be explained below. The amount of coal fed measured by the coal feed amount indicator 44 is manually input to the control box 42 as a load signal for the coal pulverizer 19, and the control box 42 inputs the gas flow ■, gas humidity, and coal feed that have been input in advance. Based on the relationship between the amounts, the gas temperature and gas flow rate are calculated to enable proper drying and good airflow transport, and based on this, the damper 34. ．． 35 is adjusted to adjust the mixing ratio and total amount of high temperature gas and low temperature gas.
一方制御箱４５に対しては微粉炭機１９に供給される再
循環ガスの流量と、ガス中の０２分圧が各指示器で計測
され信号入力されている。制御箱４５に対しては微粉炭
給送量に対応する気流輸送用気体の流量、および気流輸
送用気体を燃焼用−次空気として利用する場合の適正な
０□分圧があらかじめ入力しであるので、前記信号入力
されたデータと比較演算し混合器３９に導入すべき空気
量を算出する。この場合、空気を混合した気体の温度調
節を行うため、混合器３９に対する空気の温度を調節す
るようにしてもよい。すなわち、ダンパ４０および４１
の開度を調節することにより算出した空気流量を変更さ
せないで加熱空気と冷空気の混合比率を変化させ空気温
度の調節を行う。On the other hand, the flow rate of the recirculating gas supplied to the pulverizer 19 and the 02 partial pressure in the gas are measured by respective indicators and input signals to the control box 45. The flow rate of the pneumatic transportation gas corresponding to the amount of pulverized coal fed and the appropriate 0□ partial pressure when the pneumatic transportation gas is used as secondary air for combustion are input into the control box 45 in advance. Therefore, the amount of air to be introduced into the mixer 39 is calculated by comparing with the data inputted as the signal. In this case, in order to adjust the temperature of the gas mixed with air, the temperature of the air relative to the mixer 39 may be adjusted. That is, dampers 40 and 41
The air temperature is adjusted by changing the mixing ratio of heated air and cold air without changing the calculated air flow rate by adjusting the opening degree of the air.
なお、最終的な混合気体の湿度の調節は混合する空気の
温度を一定にしてダンパ３４，３５の調節により微粉炭
機に供給する再循環ガス温度を調節しても行うことがで
きるが、通常微粉炭乾燥の点からガス温度は定まるので
温度調節は混合空気側で行うのが一般的である。またガ
ス温度側および空気温度側の両方の要素を変更すること
により調節を行うこともできるが、この場合は各制御箱
４．２．４．５の間にインターロック用の回路５０を設
定して制御を正確に行えるようにする。The humidity of the final mixed gas can be adjusted by keeping the temperature of the mixed air constant and adjusting the temperature of the recirculating gas supplied to the pulverizer by adjusting the dampers 34 and 35, but usually Since the gas temperature is determined from the viewpoint of drying the pulverized coal, the temperature is generally adjusted on the mixed air side. Adjustment can also be made by changing elements on both the gas temperature side and the air temperature side, but in this case, an interlock circuit 50 is set between each control box 4.2.4.5. to enable accurate control.
以上の実施例においては微粉炭機に供給する気体をボイ
ラの燃焼ガスとしたがこれに限るものではなく微粉炭の
燃焼に悪影響を与えずかつ低酸素分圧の気体であればよ
い。In the above embodiments, the gas supplied to the pulverized coal machine was the combustion gas of the boiler, but the gas is not limited to this, and any gas may be used as long as it does not adversely affect the combustion of the pulverized coal and has a low oxygen partial pressure.
この装置において、例えば微粉炭器１９を緊急停止する
事態が生じた場合には混合器３９の人ロダンバ５１を閉
止する。これにより微粉炭器１９および混合器３９まで
の管路は低０２燃焼ガスが充填された状態となるので粉
塵爆発は生じない。また混合器３９下流側では０２分圧
が高くなっているが、残留した微粉炭を火炉ａ側にパー
ジしてしまえば爆発の危険性は全くない。In this device, for example, when a situation arises in which the coal pulverizer 19 is to be stopped in an emergency, the rotor bar 51 of the mixer 39 is closed. As a result, the pipes leading to the coal pulverizer 19 and the mixer 39 are filled with low-02 combustion gas, so that no dust explosion occurs. Further, although the 02 partial pressure is high on the downstream side of the mixer 39, there is no risk of explosion if the remaining pulverized coal is purged to the furnace a side.
この発明を実施することにより、微粉炭器および微粉炭
機下流側の管路の一部に対しては０２分圧の低い気体の
みが供給されるので微粉炭機の停止、微粉炭の堆積があ
っても爆発の虞れはない。By implementing this invention, only gas with a low partial pressure of 02 is supplied to the pulverizer and a part of the pipe line downstream of the pulverizer, thereby preventing the pulverizer from stopping and pulverized coal from accumulating. Even if there is, there is no risk of explosion.
さらに微粉炭器から排出された微粉炭流れに対して空気
を供給するのでバーナ部での微粉炭輸送気体の０分圧を
自由に設定でき、燃焼を常時適正に保持できる。Furthermore, since air is supplied to the pulverized coal flow discharged from the pulverizer, the zero partial pressure of the pulverized coal transport gas in the burner section can be freely set, and combustion can be maintained properly at all times.
さらに、微粉炭器に対して高温、高圧の空気を供給する
必要がなくなったので高価かつ複雑な三分割型空気予熱
器を設置する必要がなく経済的である等種々の効果を発
揮する。Furthermore, since it is no longer necessary to supply high-temperature, high-pressure air to the pulverizer, there is no need to install an expensive and complicated three-part air preheater, resulting in various effects such as being economical.
第１図は従来の微粉炭燃焼装置の系統図、第２図はこの
発明の一実施例を示す微粉炭燃焼装置の制御系統図であ
る。
１・・・・・・ボイラ
２・・・・・・火炉
５・・・・・・煙道
１２・・・・・・主風道
１９ ・・・・・・微粉炭器
２０ ・・・・・・微粉炭管路
３０・・・・・・空気予熱器
４．２．４．５・・・・・・制御箱FIG. 1 is a system diagram of a conventional pulverized coal combustion device, and FIG. 2 is a control system diagram of a pulverized coal combustion device showing an embodiment of the present invention. 1... Boiler 2... Furnace 5... Flue 12... Main air duct 19... Pulverizer 20... ...Pulverized coal pipe line 30...Air preheater 4.2.4.5...Control box
Claims (1)
し燃焼させるものにおいて、微粉炭機に対して０２分圧
の低い気体を供給する管路を接続し、かつ微粉突器出口
側の管路に対して０２分圧の高い気体を供給する管路を
接続して０２分圧の低い気体と混合し、微粉炭搬送気体
の０□分圧を微粉炭燃焼に適正な値に補正することを特
徴とする微粉炭燃焼装置。 ２・ 前記０□分圧の低い気体をボイラ排ガスとしかつ
０２分圧の高い気体を空気としたことを特徴とする特許
請求の範囲第１項記載の微粉炭燃焼装置。 ３・ 煙道または主風道の上流側および下流側から各々
抽気し、かつ抽気した気体の混合比率を変化し得るよう
構成することによりボイラ排ガスまたは混合空気の少く
とも一方の温度を調節し得るよう構成したことを特徴と
する特許請求の範囲第１項または第２項記載の微粉炭燃
焼装置。 ４・ 前記制御を記憶と指令信号を発する制御箱により
行うよう構成したことを特徴とする特許請求の範囲第１
項ないし第３項のいづれかに記載の微粉炭燃焼装置。[Scope of Claims] 1. In a device in which pulverized coal produced in a pulverized coal machine is transported and combusted by air flow, a pipe line for supplying gas with a low partial pressure to the pulverized coal machine is connected. , and connect a pipe supplying gas with a high partial pressure of 02 to the pipe on the outlet side of the pulverizer, and mix it with a gas with a low partial pressure of 02, and reduce the partial pressure of the pulverized coal carrying gas to pulverized coal. A pulverized coal combustion device characterized by correcting the value to an appropriate value for combustion. 2. A patent claim characterized in that the gas with a low 0□ partial pressure is used as boiler exhaust gas and the gas with a high 0□ partial pressure is used as air. The pulverized coal combustion apparatus according to item 1. 3. By extracting air from the upstream and downstream sides of the flue or main wind duct, and by configuring so that the mixing ratio of the extracted gas can be changed, boiler exhaust gas or The pulverized coal combustion apparatus according to claim 1 or 2, characterized in that the pulverized coal combustion apparatus is configured to be able to adjust the temperature of at least one side of the mixed air. 4. Control for storing the control and issuing a command signal. Claim 1 characterized in that it is configured to be carried out by a box.
The pulverized coal combustion device according to any one of Items 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58161227A JPS6053714A (en) | 1983-09-03 | 1983-09-03 | Combustion device for pulverized coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58161227A JPS6053714A (en) | 1983-09-03 | 1983-09-03 | Combustion device for pulverized coal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6053714A true JPS6053714A (en) | 1985-03-27 |
| JPH0434048B2 JPH0434048B2 (en) | 1992-06-04 |
Family
ID=15731043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58161227A Granted JPS6053714A (en) | 1983-09-03 | 1983-09-03 | Combustion device for pulverized coal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6053714A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009110034A1 (en) * | 2008-03-06 | 2009-09-11 | 株式会社Ihi | Method of controlling flow rate of primary recirculating exhaust gas in oxygen combustion boiler and apparatus therefor |
| WO2010050270A1 (en) * | 2008-10-29 | 2010-05-06 | 三菱重工業株式会社 | Integrated coal gasification combined cycle power generation facility |
| JP2017101885A (en) * | 2015-12-02 | 2017-06-08 | 株式会社東芝 | Coal burning boiler and drying method of low grade coal |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5864409A (en) * | 1981-10-15 | 1983-04-16 | Mitsubishi Heavy Ind Ltd | Pulverized coal firing boiler |
-
1983
- 1983-09-03 JP JP58161227A patent/JPS6053714A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5864409A (en) * | 1981-10-15 | 1983-04-16 | Mitsubishi Heavy Ind Ltd | Pulverized coal firing boiler |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009110034A1 (en) * | 2008-03-06 | 2009-09-11 | 株式会社Ihi | Method of controlling flow rate of primary recirculating exhaust gas in oxygen combustion boiler and apparatus therefor |
| EP2251598A1 (en) * | 2008-03-06 | 2010-11-17 | IHI Corporation | Method of controlling flow rate of primary recirculating exhaust gas in oxygen combustion boiler and apparatus therefor |
| EP2251598A4 (en) * | 2008-03-06 | 2012-05-09 | Ihi Corp | Method of controlling flow rate of primary recirculating exhaust gas in oxygen combustion boiler and apparatus therefor |
| JP5107418B2 (en) * | 2008-03-06 | 2012-12-26 | 株式会社Ｉｈｉ | Primary recirculation exhaust gas flow controller for oxyfuel boiler |
| US8550016B2 (en) | 2008-03-06 | 2013-10-08 | Ihi Corporation | Method and apparatus of controlling flow rate of primary recirculating exhaust gas in oxyfuel combustion boiler |
| WO2010050270A1 (en) * | 2008-10-29 | 2010-05-06 | 三菱重工業株式会社 | Integrated coal gasification combined cycle power generation facility |
| JP2010106722A (en) * | 2008-10-29 | 2010-05-13 | Mitsubishi Heavy Ind Ltd | Coal gasification compound power generating facility |
| CN102112717A (en) * | 2008-10-29 | 2011-06-29 | 三菱重工业株式会社 | Integrated coal gasification combined cycle power generation facility |
| KR101293321B1 (en) * | 2008-10-29 | 2013-08-05 | 미츠비시 쥬고교 가부시키가이샤 | Integrated coal gasification combined cycle power generation facility |
| JP2017101885A (en) * | 2015-12-02 | 2017-06-08 | 株式会社東芝 | Coal burning boiler and drying method of low grade coal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0434048B2 (en) | 1992-06-04 |
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