JPS62244424A - System for removing corrosive gas in dry type power generation by blast furnace top gas pressure - Google Patents
System for removing corrosive gas in dry type power generation by blast furnace top gas pressureInfo
- Publication number
- JPS62244424A JPS62244424A JP61085871A JP8587186A JPS62244424A JP S62244424 A JPS62244424 A JP S62244424A JP 61085871 A JP61085871 A JP 61085871A JP 8587186 A JP8587186 A JP 8587186A JP S62244424 A JPS62244424 A JP S62244424A
- Authority
- JP
- Japan
- Prior art keywords
- blast furnace
- dry
- power generation
- gas
- dust collector
- 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
- 238000010248 power generation Methods 0.000 title claims description 24
- 239000000428 dust Substances 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 22
- 239000003513 alkali Substances 0.000 claims abstract description 8
- 238000005406 washing Methods 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims description 24
- 238000005260 corrosion Methods 0.000 claims description 7
- 230000007797 corrosion Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002351 wastewater Substances 0.000 claims description 3
- 230000001568 sexual effect Effects 0.000 claims 1
- 230000003472 neutralizing effect Effects 0.000 abstract description 8
- 230000002378 acidificating effect Effects 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract description 6
- 239000011362 coarse particle Substances 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- 239000002562 thickening agent Substances 0.000 abstract description 5
- 239000003795 chemical substances by application Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000006227 byproduct Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 46
- 238000011084 recovery Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000012670 alkaline solution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910017518 Cu Zn Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、乾式による高炉・炉頂圧発電システムにおけ
る腐食性ガスを除去するシステムに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a system for removing corrosive gas in a dry blast furnace/furnace top pressure power generation system.
従来及現状の多くの高炉炉頂ガスエネルギーの回収シス
テムは、ガスの清浄装置として、ベンチュリースクラバ
ー（Ｖ、Ｓ）設備等の、水によるガス洗浄即ち、湿式集
塵装置を経たガスの圧力（量）を、発電タービンにて電
力として回収をしている。Many of the conventional and current blast furnace top gas energy recovery systems use Venturi scrubber (V, S) equipment as a gas cleaning device to clean the gas with water, i.e., the pressure (volume) of the gas that has passed through a wet dust collector. ) is recovered as electricity using a power generation turbine.
近年では、ガスの圧力のみならず、高い炉頂ガス温度を
乾式集塵装置によシそのまま高温の状態で発電タービン
に導き、よυ多くの電力を回収する、乾式による発電シ
ステムにかわろうとしている。In recent years, there has been a shift towards dry power generation systems, which recover not only the gas pressure but also the high temperature of the furnace top gas through a dry dust collector and direct it to the power generation turbine in a high temperature state to recover much more electricity. .
この乾式による発電システムにおいて、高温の乾ガスは
、従来からの湿式（水洗）によるガスに比べ、ガス中の
腐食ガス成分例えば塩酸等の、酸性物質がガス移送、貯
蔵設備等の諸設備に、酸露点腐食等を起こし、高炉操業
に大きな支障を与える様になっている。In this dry-type power generation system, the high-temperature dry gas, compared to the conventional wet-type (water-washed) gas, releases corrosive gas components in the gas, such as hydrochloric acid, and other acidic substances to various equipment such as gas transfer and storage equipment. This causes acid dew point corrosion, etc., which is causing major problems in blast furnace operations.
尚、一般的には、高炉ガス本管系統に於いて、たと考え
られる。In addition, it is generally considered to be the case in the blast furnace gas main system.
ただし、酸性ガスを除去する一般的な装置としては、洗
浄塔内にテラレット等の充填材間に、ガスを通過させ、
上部から吸収液（中和剤）を散布して除去する方法があ
るが、これは充填物による圧力損失が大きいため実用的
でない。However, as a general device for removing acidic gas, gas is passed between filling materials such as Terraret in a cleaning tower.
There is a method of spraying an absorbing liquid (neutralizing agent) from the top to remove it, but this is not practical because the pressure loss due to the packing is large.
本発明は、乾式による高炉・炉頂圧発電システムにおい
て、乾ガス中の腐食性ガス（酸性ガス）成分によるガス
の移送設備及好酸設備等の諸設備の腐食を防止し、電力
を効率的に回収する腐食性ガス除去システムを提供する
ことを目的とするものである。The present invention prevents corrosion of various equipment such as gas transfer equipment and acidophilic equipment due to corrosive gas (acidic gas) components in dry gas in a dry blast furnace/furnace top pressure power generation system, and efficiently uses electric power. The purpose is to provide a corrosive gas removal system that recovers corrosive gases.
本発明は、乾式による炉頂圧発電のメリットヲ損なわず
、乾ガス中の腐食ガス成分（酸性物質）を、乾式集塵装
置により捕集した集塵ダス）ｋ水処理した循環水を利用
した中和及洗浄装置によって、系外に中和除去するシス
テムである。The present invention does not impair the advantages of dry-type furnace top pressure power generation, and removes corrosive gas components (acidic substances) from dry gas by using circulating water treated with dust collected by a dry-type dust collector. This is a system that neutralizes and removes it outside the system using a washing and washing device.
即ち、本発明は、高炉ガスを乾式集塵装置９発電タービ
ン、該発電タービンの出口直部に設けた中和洗浄装置及
び後工程からなる高炉ガスフローと、洗浄水、水処理フ
ローとから成り、該乾式集塵装置からの乾式ダストと水
処理し、該乾式ダスト中に含まれる金属アルカリ成分を
高炉ガス中の腐食成分の中和洗浄に利用することを特徴
とする高炉・炉頂圧乾式発ｔＫおける腐食性ガス除去シ
ステムである。That is, the present invention consists of a blast furnace gas flow consisting of a dry dust collector, a power generation turbine, a neutralization cleaning device installed directly at the outlet of the power generation turbine, and a post-process, washing water, and a water treatment flow. , a blast furnace/furnace top pressure drying method characterized in that the dry dust from the dry dust collector is treated with water, and the metal alkali components contained in the dry dust are used for neutralizing and cleaning corrosive components in blast furnace gas. This is a system for removing corrosive gases in the combustion chamber.
又、前記中和洗浄装置がベンチュリースラバータイプで
アシ、更に前記中和洗浄に利用する乾式ダストの水処理
排液をｐ１４７〜８に調節することが好ましい高炉・炉
頂圧乾式発電における腐食性ガス除去システムである。Further, it is preferable that the neutralization cleaning device is a Venturi rubber type and that the water treatment effluent of the dry dust used for the neutralization cleaning is adjusted to P147 to 8. Corrosiveness in blast furnace/top pressure dry power generation It is a gas removal system.
本発明は酸性腐食ガスを除去するため、発電タービンの
出口直部に中和洗浄装置を設けたため、乾式による高炉
・炉頂ガスエネルギー回収システムを充分に活用できる
ことから従来の湿式システムに比して高い電力回収が可
能となシ、酸性ガス配が無く、高炉操業への影響をなく
すと同時にメンテナンスも不要となる。In order to remove acidic corrosive gas, the present invention has a neutralizing cleaning device installed directly at the outlet of the power generation turbine, making it possible to fully utilize the dry blast furnace/furnace top gas energy recovery system, compared to the conventional wet system. High power recovery is possible, there is no acid gas distribution, there is no impact on blast furnace operation, and there is no need for maintenance.
本発明は、高炉ガスのガス処理フローにおいて、１０〜
３０９／Ｎｔｙ／程度のダストを含んでいるため、乾式
集塵装置にてダスト５〜１０ｆ／Ｎ−とじ発電タービン
にて発電し、仕事を終えた乾き高炉ガスを、中和洗浄装
置に導入し、中和洗浄装置の入口部において、水処理フ
ローの循環水系からの多量の水を散水噴霧し、ダスト５
〜１０ｆ／ＮＷ？に洗浄するものである。この循環水は
、乾式集塵装置から回収した乾式ダストを水処理し、該
ダスト中に含有される金属アルカリ成分（Ｚｎ、 Ｎａ
、 Ｏ，Ｋ２Ｏ） 及び調整されたＺｎ 等の防食成
分を利用するものであシ、これ全ｐＨ７〜８好ましくは
ｐＨ７，３〜１８程度に調整する。−を前記範囲に調整
した理由は、この範囲内においては、ダスト中のＺｎ
分が適度に残留し防食成分として作用することによる
ものである。又中和洗浄装置の入口部においても、Ｎａ
ＯＨ等による中和装置を設けたので排水の−を制御出
来るものである。The present invention provides a gas treatment flow for blast furnace gas in which:
Since the blast furnace gas contains about 309/Nty/ of dust, the dry blast furnace gas is collected by a dry dust collector and generated by a power generation turbine. At the inlet of the neutralization cleaning device, a large amount of water from the circulating water system of the water treatment flow is sprayed to remove dust 5.
~10f/NW? It is something to be washed. This circulating water is produced by water-treating the dry dust collected from the dry dust collector, and removing metal alkali components (Zn, Na, etc.) contained in the dust.
, O, K2O) and adjusted Zn, all of which are adjusted to pH 7 to 8, preferably pH 7.3 to 18. The reason why - was adjusted to the above range is that within this range, Zn in the dust
This is due to the fact that a moderate amount of the components remains and acts as an anti-corrosion component. Also, at the entrance of the neutralization cleaning equipment, Na
Since a neutralization device using OH or the like is provided, the amount of waste water can be controlled.
以上の循環水の散水によシ、高炉ガス中の腐食成分を中
和洗浄し、下流の装置の腐食を防止すると共に炭酸ガス
腐食をも防止することをも可能としたものである。By spraying the circulating water as described above, the corrosive components in the blast furnace gas are neutralized and washed, thereby making it possible to prevent corrosion of downstream equipment as well as carbon dioxide corrosion.
更に中和及洗浄装置として圧力損失の少ない構造のベン
チュリースクラバータイプのものを用いるので、設備費
波にガス回収における圧力損失上の問題もない。Furthermore, since a venturi scrubber type device having a structure with low pressure loss is used as the neutralization and cleaning device, there are no equipment costs or problems related to pressure loss during gas recovery.
次に実施例について述べる。Next, examples will be described.
第１図に、本発明システムの実施態様例の工程説明図を
、第２図に中和洗浄装置の説明図を示す。FIG. 1 shows a process explanatory diagram of an embodiment of the system of the present invention, and FIG. 2 shows an explanatory diagram of a neutralization cleaning device.
図において、１は乾式集塵装置、２は発電タービン、６
はベンチュリースクラバータイプの中和洗浄装ｆｔ、４
は池、５はポンプ、６は粗粒分離装置、７はシックナー
、８は冷却塔、１１は３の入口部、１２は中和用アルカ
リ溶液タンク、１６はデミスタ−２１４は自然排水装置
、１５は排水樋である。図に基づいて、本システムにつ
いて述べる。In the figure, 1 is a dry dust collector, 2 is a power generation turbine, and 6
Venturi scrubber type neutralizing cleaning equipment ft, 4
is a pond, 5 is a pump, 6 is a coarse particle separator, 7 is a thickener, 8 is a cooling tower, 11 is an inlet of 3, 12 is an alkaline solution tank for neutralization, 16 is a demister, 214 is a natural drainage system, 15 is a drainage gutter. This system will be described based on the diagram.
第１図に示す如く、高炉 炉頂からの高炉ガス（乾式集
塵装置入口２５０℃）を乾式集塵装置１に導入し、乾式
のダストを除塵し、次いで発電タービン２に該タービン
入口温度１５０℃〜２００℃にて導入し、発電し電力を
回収する。As shown in FIG. 1, blast furnace gas from the top of the blast furnace (at a temperature of 150° C. at the inlet of the dry dust collector) is introduced into a dry dust collector 1 to remove dry dust, and then sent to a power generation turbine 2 at a temperature of 150° C. at the inlet of the turbine. It is introduced at a temperature of ℃ to 200℃, generates electricity, and recovers the electricity.
乾式による高炉・炉頂圧システムにおける発電タービン
２にて、仕事を終えた８０〜１００℃の乾ガスは、第２
図に図示する如く中和洗浄装置。In the dry blast furnace/furnace top pressure system, the dry gas at a temperature of 80 to 100°C that has finished its work in the power generation turbine 2 is transferred to the second
A neutralization cleaning device as shown in the figure.
本態様例においてはベンチュリースクラバー６に導入し
、スクラバー６の入口部１１において、中和剤用のアル
カリ溶液タンク１２からのアルカリ性洗浄液この場合は
ＮａＯＨの薬液と要すれば水との混合溶液を散布し、ガ
ス中の酸性物質例えば塩酸及び炭酸ガスを中和させ出口
５０℃の高炉ガスは熱風炉またはホルダーの後工程に送
風される。In this embodiment, the alkaline cleaning liquid from the alkaline solution tank 12 for neutralizing agent is introduced into the Venturi scrubber 6, and a mixed solution of a chemical solution of NaOH in this case and water if necessary is sprayed at the inlet 11 of the scrubber 6. Then, acidic substances such as hydrochloric acid and carbon dioxide gas in the gas are neutralized, and the blast furnace gas at the outlet temperature of 50° C. is blown to a post process of a hot blast furnace or a holder.
同時に、多量の散水噴霧によシ、中和により生じた副生
物を排液樋１５よυ系外に流出させる。At the same time, by-products generated by the neutralization are discharged out of the system through the drainage gutter 15 by a large amount of water spray.
尚中和、洗浄装置として、ベンチュリースクラバータイ
プ６を用いたが、圧損は当然のことながらそのまま電力
ロスにつながるので、極力圧損を最少限に押えた構造と
した。又、ベンチュリースクラバー６の中段下部には、
ミスト除去のためのデミスタ−１６を設け、同ケ所には
洗浄水を噴霧せしめ、底部は、水封タイプによる自然排
水装置１４を有し排水を排水樋６より排出せしめる。A Venturi scrubber type 6 was used as the neutralization and cleaning device, but since pressure loss naturally leads to power loss, the structure was designed to minimize pressure loss as much as possible. In addition, at the lower middle stage of the Venturi scrubber 6,
A demister 16 is provided for removing mist, and washing water is sprayed at the same place, and a water seal type natural drainage device 14 is provided at the bottom to discharge waste water from a drainage gutter 6.
尚本中和洗浄装置３を極力圧力損失の小さいペンブユリ
ースクラバータイプを用いたが、単純な円筒型のスプレ
ィ−タイプの塔を用いてもよいことは勿論である。Although the present neutralization and cleaning device 3 is of the penbury scrubber type with as little pressure loss as possible, it is of course possible to use a simple cylindrical spray type tower.
次に第１図に基づいて、洗浄水、水処理フローについて
述べる。Next, the washing water and water treatment flow will be described based on FIG.
ベンチュリースクラバー６の排水にて、乾式集塵装置１
にて捕集した次表に示す如き金属アルカリ成分を含む乾
式ダスト（１０〜３０ ｆ／Ｎｄ ’） を水処理し
、処理液は池４に貯留する。この貯留水をポンプ５にて
送液し、粗粒分離装置６にて粗粒を分離後シックナー６
にて更に沈降せしめる。Dry type dust collector 1 with drainage from Venturi scrubber 6
Dry dust (10 to 30 f/Nd') containing metal alkali components as shown in the following table collected in the wafer is treated with water, and the treated liquid is stored in the pond 4. This stored water is sent by a pump 5, and after separating coarse particles by a coarse particle separator 6, a thickener 6
Further sedimentation is performed.
表 ダストの分析値（重量％）
Ｔ、Ｆａ ＦｅＯ５ｉ０２ Ａｅ１０３ ＣａＯＭ
ｇＯＴｉｄｙＭｎ Ｐ Ｓ Ｃｕ Ｚｎ
ＫＩＯＮａｎ。Table Dust analysis value (weight %) T, Fa FeO5i02 Ae103 CaOM
gOTidyMn P S Cu Zn
KIONan.
０．２４０ｆｉ６８０．３１５００１０．２９ ０．１
３ ０．０７−Ｃ
４Ｂ
次いでシックナー６の溢流水を池４に貯留する。0.240fi680.3150010.29 0.1
3 0.07-C 4B Next, overflow water from the thickener 6 is stored in the pond 4.
この貯留液全ポンプ５にて冷却塔８に送液する。The entire stored liquid is sent to the cooling tower 8 by the pump 5 .
排液温度は６０〜７０℃と高いので冷却塔８（空冷式）
の上部より排液を噴霧冷却し、ポンプ５にて中和洗浄装
置のベンチュリースクラバー６の入口部１１に送水する
。Since the temperature of the effluent is high at 60 to 70℃, cooling tower 8 (air-cooled type) is used.
The waste liquid is sprayed and cooled from the upper part of the tank, and the pump 5 sends water to the inlet 11 of the venturi scrubber 6 of the neutralization cleaning device.
ベンチュリースクラバー３においては、前述の如く、仕
事を終えた発電タービン２からの高炉ガスを、洗浄中和
するものである。As mentioned above, the venturi scrubber 3 cleans and neutralizes the blast furnace gas from the power generation turbine 2 that has finished its work.
尚中和洗浄装置６の排水の声を第２図に示す如く自然排
水装置１４の排液樋１５に設けた一計にて連続測定し、
自動的に中和洗浄装置６ヘフイードバツクして一制御す
るシステムをも有するものである。In addition, the sound of drainage from the neutralization cleaning device 6 was continuously measured using a meter installed in the drainage gutter 15 of the natural drainage device 14 as shown in Fig. 2.
It also has a system that automatically feeds back and controls the neutralization cleaning device 6.
斯る本発明のシステムにおける電力回収は従来の湿式シ
ステムに比して入口ガス温度が従来法５０℃に対し、本
発明法では１５０℃に１００℃アップが可能とな９、こ
れによる電力５，０００ｋｖｒＨの回収増が図られた。The power recovery in the system of the present invention is such that compared to the conventional wet system, the inlet gas temperature can be increased by 100 degrees Celsius from 50 degrees Celsius in the conventional method to 150 degrees Celsius9. An attempt was made to increase the recovery of 000 kvrH.
本発明の、高炉・炉頂圧発電における腐食性ガス除去シ
ステムによると電力の回収増が図られると共に酸性ガス
によるガス本管Ｈ８，ホルダー等への腐食がなく高炉操
業への影響を無くすと同時にメンテナンスも不要となシ
、更に、洗浄中和に使用する水は、集塵ダスト中のアル
カリ、防食成分の活用を図ることから、中和剤の大巾な
節減が可能となる等の効果を奏するものである。According to the corrosive gas removal system for blast furnace/furnace top pressure power generation of the present invention, the recovery of electric power is increased, and at the same time, there is no corrosion of the gas main pipe H8, holder, etc. due to acid gas, and there is no effect on blast furnace operation. No maintenance is required, and the water used for cleaning and neutralization utilizes the alkali and anticorrosion components in the collected dust, making it possible to greatly reduce the need for neutralizing agents. It is something to play.
第１図は、本発明の実施態様側工程説明図、第２図は洗
浄中和装置の説明図である。
図において、１：乾式集塵装置、２：発電タービン、６
：中和洗浄装置、４：池、５：ポンプ。
６：粗粒分離装置、７：シックナー、８：冷却塔。
１１：入口部、１２：アルカリ溶液タンク。
１３：デミスター、１４：自然排水装置、１５：排液樋
である。FIG. 1 is a process explanatory diagram of an embodiment of the present invention, and FIG. 2 is an explanatory diagram of a washing and neutralizing device. In the figure, 1: dry dust collector, 2: power generation turbine, 6
: Neutralization cleaning device, 4: Pond, 5: Pump. 6: Coarse particle separator, 7: Thickener, 8: Cooling tower. 11: Inlet part, 12: Alkaline solution tank. 13: demister, 14: natural drainage device, 15: drainage gutter.
Claims (3)
タービンの出口直部に設けた中和洗浄装置及び後工程か
らなる高炉ガスフローと、洗浄水、水処理フローとから
成り、該乾式集塵装置からの乾式ダストを水処理し、該
乾式ダスト中に含まれる金属アルカリ成分を高炉ガス中
の腐食成分の中和洗浄に利用することを特徴とする高炉
・炉頂圧乾式発電における腐食性ガス除去システム。(1) The blast furnace gas flow consists of a dry type dust collector, a power generation turbine, a neutralization cleaning device installed directly at the outlet of the power generation turbine, and a post-process, washing water, and a water treatment flow, and the dry type Corrosion in blast furnace/top pressure dry power generation characterized by treating dry dust from a dust collector with water and using metal alkali components contained in the dry dust to neutralize and clean corrosive components in blast furnace gas. Sexual gas removal system.
プであることを特徴とする特許請求の範囲第１項記載の
高炉・炉頂圧乾式発電における腐食性ガス除去システム
。(2) The corrosive gas removal system for blast furnace/top pressure dry power generation according to claim 1, wherein the neutralization cleaning device is a venturi scrubber type.
をｐＨ７〜８に調節することを特徴とする特許請求の範
囲第１項記載の高炉・炉頂圧乾式発電における腐食性ガ
ス除去システム。(3) Corrosive gas removal in blast furnace/top pressure dry power generation according to claim 1, characterized in that the water treatment wastewater of dry dust used for neutralization cleaning is adjusted to pH 7 to 8. system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61085871A JPS62244424A (en) | 1986-04-16 | 1986-04-16 | System for removing corrosive gas in dry type power generation by blast furnace top gas pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61085871A JPS62244424A (en) | 1986-04-16 | 1986-04-16 | System for removing corrosive gas in dry type power generation by blast furnace top gas pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62244424A true JPS62244424A (en) | 1987-10-24 |
| JPH0425046B2 JPH0425046B2 (en) | 1992-04-28 |
Family
ID=13870959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61085871A Granted JPS62244424A (en) | 1986-04-16 | 1986-04-16 | System for removing corrosive gas in dry type power generation by blast furnace top gas pressure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62244424A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011037789A1 (en) * | 2009-09-25 | 2011-03-31 | Alstom Technology Ltd | Exhaust processing and heat recovery system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5040490A (en) * | 1973-08-08 | 1975-04-14 | ||
| JPS5334372A (en) * | 1976-09-09 | 1978-03-30 | Kawasaki Heavy Ind Ltd | City wastes incinerator for effectively utilizing burnt residue |
| JPS58177124A (en) * | 1982-04-12 | 1983-10-17 | Ishikawajima Harima Heavy Ind Co Ltd | Recovery of energy of exhaust gas from heavy oil cracking process |
-
1986
- 1986-04-16 JP JP61085871A patent/JPS62244424A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5040490A (en) * | 1973-08-08 | 1975-04-14 | ||
| JPS5334372A (en) * | 1976-09-09 | 1978-03-30 | Kawasaki Heavy Ind Ltd | City wastes incinerator for effectively utilizing burnt residue |
| JPS58177124A (en) * | 1982-04-12 | 1983-10-17 | Ishikawajima Harima Heavy Ind Co Ltd | Recovery of energy of exhaust gas from heavy oil cracking process |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011037789A1 (en) * | 2009-09-25 | 2011-03-31 | Alstom Technology Ltd | Exhaust processing and heat recovery system |
| CN102666883A (en) * | 2009-09-25 | 2012-09-12 | 阿尔斯通技术有限公司 | Exhaust processing and heat recovery system |
| US9598742B2 (en) | 2009-09-25 | 2017-03-21 | Arvos Inc. | Exhaust processing and heat recovery system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0425046B2 (en) | 1992-04-28 |
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