JPS63166916A - How to use oxygen blast furnace gas - Google Patents
How to use oxygen blast furnace gasInfo
- Publication number
- JPS63166916A JPS63166916A JP61309138A JP30913886A JPS63166916A JP S63166916 A JPS63166916 A JP S63166916A JP 61309138 A JP61309138 A JP 61309138A JP 30913886 A JP30913886 A JP 30913886A JP S63166916 A JPS63166916 A JP S63166916A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- blast furnace
- oxygen
- oxygen blast
- air
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04012—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling
- F25J3/04018—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling of main feed air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04109—Arrangements of compressors and /or their drivers
- F25J3/04115—Arrangements of compressors and /or their drivers characterised by the type of prime driver, e.g. hot gas expander
- F25J3/04127—Gas turbine as the prime mechanical driver
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
- F25J3/04527—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general
- F25J3/04551—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general for the metal production
- F25J3/04557—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general for the metal production for pig iron or steel making, e.g. blast furnace, Corex
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
- F25J3/04563—Integration with a nitrogen consuming unit, e.g. for purging, inerting, cooling or heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
- F25J3/04593—The air gas consuming unit is also fed by an air stream
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2240/00—Processes or apparatus involving steps for expanding of process streams
- F25J2240/70—Steam turbine, e.g. used in a Rankine cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2240/00—Processes or apparatus involving steps for expanding of process streams
- F25J2240/80—Hot exhaust gas turbine combustion engine
- F25J2240/82—Hot exhaust gas turbine combustion engine with waste heat recovery, e.g. in a combined cycle, i.e. for generating steam used in a Rankine cycle
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Iron (AREA)
- Blast Furnaces (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 「発明の目的」 （産業上の利用分野） 酸素高炉から発生する高炉ガスの処理利用技術。[Detailed description of the invention] "Purpose of invention" (Industrial application field) Technology for processing and utilizing blast furnace gas generated from oxygen blast furnaces.
（従来の技術）
高濃度の酸素を高炉羽口から吸込んで操業することによ
って有利な操業をなすことが可能であり、斯うした方法
については特開昭６０−１５９１０４号公報に記載され
ている。(Prior art) Advantageous operation can be achieved by sucking high concentration oxygen through the blast furnace tuyeres, and such a method is described in Japanese Patent Application Laid-Open No. 159104/1983. .
又上記のような酸素高炉において必要な酸素は特別に電
力を用いて製造されたものが採用されている。Further, the oxygen required in the above-mentioned oxygen blast furnace is specially produced using electric power.
発明が解決しようとする問題点
上記のような従来の酸素高炉から発生する高炉ガスはカ
ロリーが高いので、そのまま通常の高炉ガスと同様に利
用することはできない。そこでこの酸素高炉ガスをカロ
リー調整して利用し、或いは別の配管設備を設けて夫々
の利用場所に供給することが考えられるが、何れにして
も真人な設備費を必要とする。Problems to be Solved by the Invention Since the above-mentioned blast furnace gas generated from the conventional oxygen blast furnace has a high calorific value, it cannot be used as is in the same way as ordinary blast furnace gas. Therefore, it is conceivable to adjust the calorie content of this oxygen blast furnace gas and use it, or to install separate piping equipment and supply it to each usage location, but in either case, a considerable amount of equipment cost is required.
しかもこの酸素高炉操業のためには大量の酸素が必要で
、斯うした酸素を得るための電力費も高額となる。Moreover, a large amount of oxygen is required to operate this oxygen blast furnace, and the electricity cost for obtaining such oxygen is also high.
「発明の構成」
（問題点を解決するための手段）
本発明は上記したような従来のものの問題点を解消する
ように創案されたもので、酸素高炉から発生したガスの
一部を循環ガスとして該酸素高炉に供給すると共に圧縮
し且つ圧縮空気を添加して高圧燃焼させたものをガスタ
ービンに導いて空気圧縮用動力を得しめ、該動力により
圧縮された空気により酸素および窒素を製造し、得られ
た酸素を前記酸素高炉に供給すると共に窒素を前記ガス
のカロリー調整に用いることを特徴とする酸素高炉ガス
の利用方法である。"Structure of the Invention" (Means for Solving the Problems) The present invention was devised to solve the problems of the conventional products as described above. The oxygen is supplied to the oxygen blast furnace, compressed, and combusted at high pressure with the addition of compressed air, which is then guided to a gas turbine to obtain power for air compression, and the air compressed by the power is used to produce oxygen and nitrogen. , a method of utilizing oxygen blast furnace gas, characterized in that the obtained oxygen is supplied to the oxygen blast furnace and nitrogen is used to adjust the calorie of the gas.
（作用）
酸素高炉から発生したガスの一部が該酸素高炉に送られ
燃焼加熱してシャフト部における予熱用または羽口先温
度調整用の何れか一方または双方に供され、又圧縮ガス
とされて圧縮空気が添加されて高圧燃焼されたものによ
りガスタービンを作動させて圧縮空気を得しめる。(Function) A part of the gas generated from the oxygen blast furnace is sent to the oxygen blast furnace, heated by combustion, and used for either or both of preheating in the shaft section and temperature adjustment at the tuyere tip, and is also converted into compressed gas. Compressed air is added and combusted at high pressure to operate a gas turbine to obtain compressed air.
上記圧縮空気を冷凍機および蒸溜塔の如きで酸素および
窒素を得る。即ち圧縮空気は冷凍機で液体空気とされて
から該液体空気が蒸留塔において沸点差の如きでＮ２と
０□に分離される。得られた酸素（０□）は酸素高炉に
供給してその操業を行わしめ、窒素（Ｎ２）はカロリー
調整用とされる。The compressed air is passed through a refrigerator and a distillation tower to obtain oxygen and nitrogen. That is, compressed air is converted into liquid air in a refrigerator, and then the liquid air is separated into N2 and 0□ in a distillation column based on the difference in boiling point. The obtained oxygen (0□) is supplied to the oxygen blast furnace for its operation, and the nitrogen (N2) is used for calorie adjustment.
酸素高炉から得られる残部ガスは炉頂ガス発電設備で電
気エネルギーを得しめてから前記Ｎ２ガスの添加などで
カロリー調整され一般的な高炉ガスの貯蔵供給系に送ら
れ通常高炉ガスと共に利用される。The remaining gas obtained from the oxygen blast furnace is used to obtain electric energy in the furnace top gas power generation equipment, and then its calorie is adjusted by adding the N2 gas, etc., and sent to a general blast furnace gas storage and supply system, where it is normally used together with the blast furnace gas.
前記ガスタービンからの排出ガスはボイラーなどに送っ
てその熱量を高温高圧蒸気として回収した後に煙突から
排気される。上記ボイラーで得られた高温高圧蒸気は蒸
気タービンに導かれ、必要電力量に応じて蒸気を抽気し
ながら電力を得る。Exhaust gas from the gas turbine is sent to a boiler or the like, and its heat is recovered as high-temperature, high-pressure steam, which is then exhausted from a chimney. The high-temperature, high-pressure steam obtained by the boiler is guided to a steam turbine, and electricity is obtained by extracting steam according to the amount of electricity required.
前記した酸素および窒素を製造するように高圧燃焼させ
られる高炉ガス量は酸素高炉に必要とされる０□量およ
び電力量によって適宜に決定される。The amount of blast furnace gas to be combusted under high pressure to produce the oxygen and nitrogen described above is appropriately determined depending on the amount of 0□ and the amount of electric power required for the oxygen blast furnace.
本発明方法を実施するための設備の概要は添附図面に示
す如くであって、酸素高炉１０から得られた酸素高炉ガ
ス１は燃料比その他の操業条件によってそれなりに変動
するが、一般的に１３００〜２０００Ｋｃａｊ！／Ｎｒ
ｒｒにも達し、斯うした酸素高炉ガス１は適宜に粗菓！
１２８されてから必要に応じ該高炉１０の予熱用または
羽口温度調整用としてのガスおよびガスタービン５への
供給ガス１ｂとして送られる。このガスタービン５への
ガス１ｂは冷却手段２で適当に冷却されてから圧縮機３
で圧縮し高圧ガスとして高圧燃焼器４に供給され、該高
圧燃焼器４においては後述する空気コンプレッサー６ａ
で圧縮された空気が供給されて高圧燃焼される。該高圧
燃焼ガスの供給を受けて作動せしめられるのがガスター
ビン５であり、該ガスタービン５によって空気コンプレ
ッサー６．６ａが共に駆動されて夫々空気を圧縮し、コ
ンプレッサー６で得られた圧縮空気は冷凍手段１６に送
られて液体空気とされ、該液体空気２６は蒸留塔１５に
送られて前述したような沸点差で０２１８とＮ２１９と
に分離される。コンプレッサー６ａで得られる圧縮空気
は上記高圧燃焼器４に対する高圧空気となることは前記
の通りで、勿論空気コンプレッサー６．６ａは２基を用
いることに代え、１基で得られた空気を分割して夫々に
供給するようにすることができる。The outline of the equipment for implementing the method of the present invention is as shown in the attached drawing, and the oxygen blast furnace gas 1 obtained from the oxygen blast furnace 10 varies depending on the fuel ratio and other operating conditions, but generally 1300 ~2000Kcaj! /Nr
The oxygen blast furnace gas 1 has reached rr, and the oxygen blast furnace gas 1 is suitable as a snack!
128, and then sent as a gas for preheating the blast furnace 10 or adjusting the tuyere temperature, and as a supply gas 1b to the gas turbine 5, if necessary. The gas 1b to the gas turbine 5 is appropriately cooled by the cooling means 2 and then sent to the compressor 3.
The high-pressure combustor 4 compresses the compressed gas and supplies it as high-pressure gas to the high-pressure combustor 4, which uses an air compressor 6a to be described later.
Compressed air is supplied and high-pressure combustion is performed. The gas turbine 5 is operated by receiving the high-pressure combustion gas, and the gas turbine 5 drives the air compressors 6 and 6a, respectively, to compress the air, and the compressed air obtained by the compressor 6 is The liquid air 26 is sent to the freezing means 16 to be converted into liquid air, and the liquid air 26 is sent to the distillation column 15 where it is separated into 0218 and N219 based on the boiling point difference as described above. As mentioned above, the compressed air obtained by the compressor 6a becomes the high-pressure air for the high-pressure combustor 4. Of course, instead of using two air compressors 6.6a, the air obtained by one air compressor 6.6a can be divided. They can be supplied to each of them.
ガスタービン５を駆動した後の燃焼ガスはボイラー７に
送ってその熱量を高温高圧蒸気として回収してから煙突
１１を経て外気に排出され、ボイラー７で得られた高温
高圧蒸気は蒸気タービン１８に送られて前記圧縮機３そ
の他の酸素高炉プラントに必要な電力１２０ａに応じて
蒸気を抽気しながら排気２１される。After driving the gas turbine 5, the combustion gas is sent to the boiler 7, where its heat is recovered as high-temperature, high-pressure steam, and then exhausted to the outside air through the chimney 11. The high-temperature, high-pressure steam obtained from the boiler 7 is sent to the steam turbine 18 The steam is sent to the compressor 3 and other parts of the oxygen blast furnace plant, and is exhausted 21 while being extracted according to the power 120a required for the oxygen blast furnace plant.
高炉１０から得られる高炉ガスｌの残部は炉頂ガス発電
設備２２に送られて、電力２０を得しめ、その後カロリ
ー調整機構１２においてそのカロリーを通常高炉ガスレ
ベルまで低下され、次いでガスホルダーへの送入ガス１
７とされる。このカロリー調整機構１２からのガス１７
にはカロリーメータ１３が設けられ、該調整機構１２に
対する前記Ｎ２ガス１９の添加管に設けられた調整バル
ブ１４を前記カロリーメータ１３による測定結果で制御
することにより、前記ガス１７のカロリーは略一定のも
のとして得られる。The remainder of the blast furnace gas l obtained from the blast furnace 10 is sent to the furnace top gas power generation equipment 22 to generate electric power 20, and then its calorie is reduced to the normal blast furnace gas level in the calorie adjustment mechanism 12, and then sent to the gas holder. Feed gas 1
It is said to be 7. Gas 17 from this calorie adjustment mechanism 12
is provided with a calorimeter 13, and by controlling an adjustment valve 14 provided in the addition pipe of the N2 gas 19 to the adjustment mechanism 12 based on the measurement result of the calorimeter 13, the calorie of the gas 17 is kept approximately constant. Obtained as a.
（実施例）
前記したような設備を用いて実施した具体的な操業例に
ついて説明すると、出銑量５０００ｔ／日の高炉１０に
鉱石およびコークスを装入し、羽口から９５％程度の純
度をもった酸素ガス（６８、８０ＯＮｎ？／ｈｒ）を吸
込むと共に炉頂からの高炉ガスｌを分岐したシャフト部
への予熱用ガス１ ａ （５９，８０ＯＮｎ？／ｈｒ）
および羽口への微粉炭（６２，５００ｋｇ／ｈｒ）を吸
込み、操業したときに炉頂から得られる高炉ガスの組成
は、ＣＯ４８，５％、ｃｏｚ３６．８％のちのであって
、１７４０Ｋｃａｆ／Ｎｎ？のものである。(Example) To explain a specific example of operation carried out using the above-mentioned equipment, ore and coke were charged into a blast furnace 10 with an output of 5000 tons/day, and a purity of about 95% was extracted from the tuyere. Preheating gas 1a (59,80 ONn?/hr) is sucked in with the oxygen gas (68, 80 ONn?/hr), and the blast furnace gas l from the top of the furnace is branched to the shaft section.
The composition of the blast furnace gas obtained from the top of the furnace when pulverized coal (62,500 kg/hr) is sucked into the tuyere and operated is 48.5% CO, 36.8% coz, and 1740 Kcaf/Nn? belongs to.
この高炉ガスを粗菓しん機で除塵してから５９８００
Ｎｒｒｒ／ｈｒを前記のように高炉１０のシャフトへ燃
焼器２４で約１０００℃とされたものを供給予熱し、又
このガス１ａから分岐されたガス１ｂ１１０．０００
Ｎｒｄ／ｈｒを一旦約２０℃に冷却してから圧縮機３で
１６ｋｇ／ｃ＋ａに圧縮し、これを空気コンプレッサー
６ａで同じ＜１６ｋｇ／ａｄに圧縮された空気と共に高
圧燃焼機４で燃焼せしめ、約１，２５０℃の高圧燃焼ガ
スをガスタービン５に送ってこれを駆動し、前記空気コ
ンプレッサー６ａと共に６をも作動させ、コンプレッサ
ー６からの圧縮空気を冷凍機１６で一１８７℃に冷却し
液体空気２８、５００１ ／ｈｒを得、該液体空気を蒸
溜塔１５で分離し１４１．０００ Ｎｒ＋？／ｈｒの酸
素と、１４０，０００ Ｎｒ＋？／ｈｒの窒素ガスとを
得た。After removing dust from this blast furnace gas with a coarse confectionery machine,
Nrrr/hr is supplied to the shaft of the blast furnace 10 as described above and preheated to about 1000°C in the combustor 24, and the gas 1b branched from this gas 1a is 110.000
Nrd/hr is once cooled to about 20°C, compressed to 16 kg/c+a by compressor 3, and combusted in high-pressure combustor 4 together with air compressed to the same <16 kg/ad by air compressor 6a. The high-pressure combustion gas at 1,250°C is sent to the gas turbine 5 to drive it, and the air compressor 6 is also operated together with the air compressor 6a, and the compressed air from the compressor 6 is cooled to -187°C by the refrigerator 16 to form liquid air. 28.5001/hr was obtained, and the liquid air was separated in distillation column 15 to produce 141.000 Nr+? /hr of oxygen and 140,000 Nr+? /hr of nitrogen gas was obtained.
又前記ガスタービン５からの排ガス５５０，００ＯＮｒ
＋？／ｈｒはボイラー７で３４０℃の蒸気を発生せしめ
、これを蒸気タービン８に送って３０．０ＯＯＫＷ／ｈ
ｒの発電を得しめ、その後４０℃に冷却しボイラー７に
戻し、約１５０℃の排ガス２１は大気中に放出した。高
炉１０からの残部ガスは約１２０℃、３．５ｋｇ／ｃａ
ｌの高温高圧状態であり、この高温高圧ガス３２．１０
０Ｎ ｒｄ ／ｈｒを炉頂ガス発電設備２２に送って１
，３００ ＫＷ／ｈｒの発電を得しめ、約８０℃の発電
設備２２における出側ガスに対し、前記窒素ガス１９を
添加してカロリーを低下調整し、通常高炉ガスレベルに
カロリー低下された高炉ガスを７０、０ＯＯＮ ｎ？
／ｈｒの割合で得、ガスホルダーに貯蔵せしめた。Further, the exhaust gas from the gas turbine 5 is 550,00ONr.
+? /hr generates steam at 340°C in boiler 7 and sends it to steam turbine 8 to generate 30.0OOKW/h.
After generating electricity of r, the reactor was cooled to 40°C and returned to the boiler 7, and the exhaust gas 21 at about 150°C was released into the atmosphere. The remaining gas from the blast furnace 10 is approximately 120℃, 3.5kg/ca
This high-temperature, high-pressure gas is in a high-temperature, high-pressure state of 32.10
Send 0N rd/hr to the furnace top gas power generation equipment 22 and generate 1
, 300 KW/hr of power generation, the nitrogen gas 19 is added to the outlet gas of the power generation equipment 22 at about 80° C. to reduce the calorie, and the calorie is reduced to the level of normal blast furnace gas. 70,0OOON n?
/hr and stored in a gas holder.
「発明の効果」
以上説明したような本発明によるときはカロリーの高い
酸素高炉ガスを用いて当該酸素高炉に必要な酸素および
窒素を得しめるもので特別に酸素および窒素ガスを準備
することなく、低度に操業せしめ、しかも残部ガスをも
適切に回収利用せしめ、このような酸素高炉ガスの有す
るエネルギーの全体を有効且つ効率的に回収利用し得る
もので、既設発電所に対する投資の如きをも不要にし、
何れにしてもこの種酸素高炉設備の好ましい低コスト且
つ効率的操業を得しめるものであるから工業的にその効
果の大きい発明である。"Effects of the Invention" According to the present invention as explained above, the oxygen and nitrogen necessary for the oxygen blast furnace can be obtained using high-calorie oxygen blast furnace gas, without special preparation of oxygen and nitrogen gas. It is possible to operate at a low level, and to recover and utilize the remaining gas appropriately, making it possible to effectively and efficiently recover and use the entire energy contained in such oxygen blast furnace gas, making it possible to reduce the investment in existing power plants. make it unnecessary,
In any case, the present invention is industrially highly effective because it enables the efficient operation of this type of oxygen blast furnace equipment at a preferable low cost.
図面は本発明の技術的内容を示すものであって、本発明
方法を実施する設備の構成関係を示した説明図である。
然して、この図面において、１は酸素高炉ガス、２は冷
却器、３は圧縮機、４は高圧燃焼器、５はガスタービン
、６．６ａは空気コンプレッサー、７はボイラー、８は
蒸気タービン、９は冷却器、１０は酸素高炉、１１は煙
突、１２はカロリー調整機構、１３はカロリーメーター
、１４は調整バルブ、１５は蒸留塔、１６は冷凍機、１
８は酸素、１９は窒素、２０．２０ａ、２０ｂおよび２
．Ｏｃは電気エネルギーを示すものである。The drawings illustrate the technical content of the present invention, and are explanatory diagrams showing the structural relationship of equipment for implementing the method of the present invention. In this drawing, 1 is oxygen blast furnace gas, 2 is a cooler, 3 is a compressor, 4 is a high-pressure combustor, 5 is a gas turbine, 6.6a is an air compressor, 7 is a boiler, 8 is a steam turbine, 9 1 is a cooler, 10 is an oxygen blast furnace, 11 is a chimney, 12 is a calorie adjustment mechanism, 13 is a calorimeter, 14 is an adjustment valve, 15 is a distillation column, 16 is a refrigerator, 1
8 is oxygen, 19 is nitrogen, 20.20a, 20b and 2
．． Oc indicates electrical energy.
Claims (3)
て該酸素高炉に供給すると共に圧縮し且つ圧縮空気を添
加して高圧燃焼させたものをガスタービンに導いて空気
圧縮用動力を得しめ、該動力により圧縮された空気によ
り酸素および窒素を製造し、得られた酸素を前記酸素高
炉に供給すると共に窒素を前記ガスのカロリー調整に用
いることを特徴とする酸素高炉ガスの利用方法。(1) A part of the gas generated from the oxygen blast furnace is supplied to the oxygen blast furnace as circulating gas, compressed, and combusted at high pressure with the addition of compressed air, which is then guided to a gas turbine to obtain power for air compression. A method of utilizing oxygen blast furnace gas, characterized in that oxygen and nitrogen are produced using air compressed by the power, the obtained oxygen is supplied to the oxygen blast furnace, and the nitrogen is used for calorie adjustment of the gas.
設備に導いて電気エネルギーを得しめてからカロリー調
整機構を経しめて高炉ガスホルダーに送る特許請求の範
囲第１項に記載した酸素高炉ガスの利用方法。(2) The oxygen blast furnace gas according to claim 1, in which the remainder of the gas generated from the oxygen blast furnace is guided to the furnace top gas power generation equipment to obtain electrical energy, and then sent to the blast furnace gas holder via a calorie adjustment mechanism. How to use.
その熱量を蒸気として回収してから排気し、該ボイラー
で得られた蒸気をスチームタービンに導き電力を得しめ
かつ必要に応じて工場用スチームも同時に得しめる特許
請求の範囲第１項または第２項の何れか１つに記載した
酸素高炉ガスの利用方法。(3) Send exhaust gas from the gas turbine to the boiler,
The heat amount is recovered as steam and then exhausted, and the steam obtained in the boiler is guided to a steam turbine to obtain electric power and, if necessary, to obtain factory steam at the same time. A method of utilizing the oxygen blast furnace gas described in any one of the paragraphs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61309138A JPS63166916A (en) | 1986-12-27 | 1986-12-27 | How to use oxygen blast furnace gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61309138A JPS63166916A (en) | 1986-12-27 | 1986-12-27 | How to use oxygen blast furnace gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63166916A true JPS63166916A (en) | 1988-07-11 |
Family
ID=17989359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61309138A Pending JPS63166916A (en) | 1986-12-27 | 1986-12-27 | How to use oxygen blast furnace gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63166916A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2663685A1 (en) * | 1990-06-20 | 1991-12-27 | Zimmermann & Jansen Gmbh | PROCESS FOR RECOVERING THE ENERGY FROM GAS FROM A BLAST FURNACE, AND INSTALLATION OF A BLAST FURNACE FOR CARRYING OUT THIS PROCESS. |
| FR2690711A1 (en) * | 1992-04-29 | 1993-11-05 | Air Liquide | Method for implementing a gas turbine group and combined assembly for producing energy and at least one air gas. |
| FR2898134A1 (en) * | 2006-03-03 | 2007-09-07 | Air Liquide | METHOD FOR INTEGRATING A HIGH-FURNACE AND A GAS SEPARATION UNIT OF THE AIR |
| CN109852750A (en) * | 2019-01-15 | 2019-06-07 | 东北大学 | A refrigeration and air-conditioning system utilizing residual pressure of blast furnace gas and its working method |
-
1986
- 1986-12-27 JP JP61309138A patent/JPS63166916A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2663685A1 (en) * | 1990-06-20 | 1991-12-27 | Zimmermann & Jansen Gmbh | PROCESS FOR RECOVERING THE ENERGY FROM GAS FROM A BLAST FURNACE, AND INSTALLATION OF A BLAST FURNACE FOR CARRYING OUT THIS PROCESS. |
| FR2690711A1 (en) * | 1992-04-29 | 1993-11-05 | Air Liquide | Method for implementing a gas turbine group and combined assembly for producing energy and at least one air gas. |
| US5386686A (en) * | 1992-04-29 | 1995-02-07 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process for the operation of a gas turbine group and the production of at least one air gas |
| FR2898134A1 (en) * | 2006-03-03 | 2007-09-07 | Air Liquide | METHOD FOR INTEGRATING A HIGH-FURNACE AND A GAS SEPARATION UNIT OF THE AIR |
| WO2007099246A3 (en) * | 2006-03-03 | 2009-01-29 | Air Liquide | Method of integrating a blast furnace with an air gas separation unit |
| EA013661B1 (en) * | 2006-03-03 | 2010-06-30 | Л`Эр Ликид, Сосьете Аноним Пур Л`Этюд Э Л`Эксплуатасьон Де Проседе Жорж Клод | Method of integrating a blast furnace with an air gas separation unit |
| CN109852750A (en) * | 2019-01-15 | 2019-06-07 | 东北大学 | A refrigeration and air-conditioning system utilizing residual pressure of blast furnace gas and its working method |
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