JP2001304529A - Method and apparatus for treating coke furnace gas desulfurization waste solution - Google Patents
Method and apparatus for treating coke furnace gas desulfurization waste solutionInfo
- Publication number
- JP2001304529A JP2001304529A JP2000119666A JP2000119666A JP2001304529A JP 2001304529 A JP2001304529 A JP 2001304529A JP 2000119666 A JP2000119666 A JP 2000119666A JP 2000119666 A JP2000119666 A JP 2000119666A JP 2001304529 A JP2001304529 A JP 2001304529A
- Authority
- JP
- Japan
- Prior art keywords
- converter
- desulfurization waste
- combustion
- waste liquid
- gas desulfurization
- 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
-
- 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
- Coke Industry (AREA)
- Air Supply (AREA)
- Chimneys And Flues (AREA)
- Treating Waste Gases (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、コークス炉ガス脱
硫廃液に含まれる硫黄、硫黄化合物を燃焼し、生成した
二酸化硫黄を酸化し、三酸化硫黄を処理するコークス炉
ガス脱硫廃液の処理方法および処理設備に関し、省エネ
ルギーを達成できると共に、脱硫廃液燃焼炉内の圧力制
御が可能なコークス炉ガス脱硫廃液の処理方法および処
理設備に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for treating a coke oven gas desulfurization waste liquid in which sulfur and sulfur compounds contained in the coke oven gas desulfurization waste liquid are burned, the generated sulfur dioxide is oxidized, and sulfur trioxide is treated. The present invention relates to a processing method and a processing apparatus for a coke oven gas desulfurization waste liquid capable of achieving energy saving and controlling the pressure in a desulfurization waste liquid combustion furnace.
【０００２】[0002]
【従来の技術】従来、コークス炉においては、コークス
炉ガス中の硫黄分を、フマックス・ロダックス式、タカ
ハックス式などの脱硫設備を用いて除去している。図３
に、上記したコークス炉ガス脱硫設備および脱硫廃液の
処理設備の基本的なフローシートを示す。2. Description of the Related Art Conventionally, in a coke oven, the sulfur content in the coke oven gas is removed using a desulfurization facility such as a Humax-Rodax type or a Takahax type. FIG.
The basic flow sheet of the coke oven gas desulfurization equipment and the desulfurization waste liquid treatment equipment described above is shown in FIG.
【０００３】図３において、１はコークス炉ガス、２は
脱硫コークス炉ガス、３は脱硫塔（吸収塔）、４は脱硫
液再生塔（酸化塔）、５は脱硫液（アルカリ水溶液）の
送給配管、６はアルカリ、７は触媒、８は脱硫液再生用
空気、９は脱硫液再生塔４で脱硫液と接触した脱硫液再
生用空気の処理装置、10は遠心分離器、フィルタなどの
固液分離装置、11は硫黄、12は脱硫廃液（硫黄、硫黄化
合物含有スラリー）の燃焼炉20への送給配管、13は硫黄
の燃焼炉20への送給配管、15はコークス炉ガス脱硫廃液
の処理設備（以下脱硫廃液処理設備とも記す）を示す。In FIG. 3, 1 is a coke oven gas, 2 is a desulfurization coke oven gas, 3 is a desulfurization tower (absorption tower), 4 is a desulfurization solution regeneration tower (oxidation tower), and 5 is a desulfurization solution (alkali aqueous solution). Supply pipe, 6 is an alkali, 7 is a catalyst, 8 is desulfurization solution regeneration air, 9 is a desulfurization solution regeneration air treatment device that has contacted with the desulfurization solution in the desulfurization solution regeneration tower 4, 10 is a centrifugal separator, a filter, etc. Solid-liquid separation device, 11 is sulfur, 12 is a pipe for feeding desulfurization waste liquid (slurry containing sulfur and sulfur compounds) to the combustion furnace 20, 13 is a pipe for feeding sulfur to the combustion furnace 20, and 15 is a coke oven gas desulfurization Shows waste liquid treatment equipment (hereinafter also referred to as desulfurization waste liquid treatment equipment).
【０００４】また、20は脱硫廃液の燃焼炉、21は燃焼炉
20発生ガスの処理装置（：予備処理装置）、22は転化
器、23は三酸化硫黄(SO3) の処理装置、24は燃焼炉20の
燃焼用空気送風機、25は燃焼用空気予熱器、26は燃焼用
空気配管系統、27はボイラ、28は転化器22冷却用の冷却
用空気送風機、29は転化器冷却用空気送給配管系統、29
P は転化器冷却用空気送給配管系統29の配管の一部、30
は排ガス処理装置、31は燃料、32は大気（燃焼用空
気）、33は水（ボイラ用水）、34は大気（冷却用空
気）、35はSO3 吸収用の吸収液（水）、36は硫酸、37は
蒸気、38は回収ドレンを示す。[0004] Further, reference numeral 20 denotes a combustion furnace for desulfurization waste liquid, and 21 denotes a combustion furnace.
20 A processing device for the generated gas (preliminary processing device), 22 is a converter, 23 is a processing device for sulfur trioxide (SO 3 ), 24 is a combustion air blower for the combustion furnace 20, 25 is a combustion air preheater, 26 is a combustion air piping system, 27 is a boiler, 28 is a converter 22 cooling air blower for cooling, 29 is a converter cooling air supply piping system, 29
P is a part of the piping of the air supply piping system 29 for converter cooling, 30
Is an exhaust gas treatment device, 31 is fuel, 32 is air (combustion air), 33 is water (boiler water), 34 is air (cooling air), 35 is SO 3 absorption absorbent (water), 36 is Sulfuric acid, 37 indicates steam, and 38 indicates recovered drain.
【０００５】なお、転化器冷却用空気送給配管系統29の
配管の一部29P は、図３に示すように、転化器22の内部
に配設された転化器22冷却用熱交換器（間接熱交換器）
である。また、燃焼炉20発生ガスの処理装置21は、冷却
器、乾燥塔などから構成され、三酸化硫黄の処理装置23
としては、SO3 を水で吸収し硫酸とする吸収塔が配設さ
れている。As shown in FIG. 3, a part 29P of the converter cooling air supply pipe system 29 is provided with a converter 22 cooling heat exchanger (indirectly disposed) inside the converter 22, as shown in FIG. Heat exchanger)
It is. Further, the processing device 21 for the generated gas of the combustion furnace 20 is composed of a cooler, a drying tower, etc.
For example, an absorption tower is provided which absorbs SO 3 with water and converts it into sulfuric acid.
【０００６】フマックス・ロダックス式、タカハックス
式の脱硫設備においては、脱硫塔３の脱硫液（吸収液）
の吸収剤としてNH4OH またはNa2CO3を用いる。また、フ
マックス・ロダックス式の脱硫設備においては、触媒７
としてピクリン酸を用い、タカハックス式の脱硫設備に
おいては、触媒７としてナフトキノンスルホン酸ソーダ
を用いる。In the desulfurization equipment of the Humax-Rodax type or the Takahax type, the desulfurization liquid (absorbing liquid) of the desulfurization tower 3 is used.
NH 4 OH or Na 2 CO 3 is used as an absorbent. In a Humax-Rodax desulfurization facility, the catalyst 7
In a Takahax desulfurization facility, sodium naphthoquinone sulfonate is used as the catalyst 7.
【０００７】図３に示すコークス炉ガスの脱硫設備の脱
硫法の原理は、下記のとおりである。すなわち、脱硫塔
３内でアルカリ水溶液中のアルカリ（NH4OH またはNa2C
O3）をコークス炉ガス（以下COG とも記す）１と接触さ
せ、ガス中のH2S を吸収除去する。The principle of the desulfurization method of the coke oven gas desulfurization equipment shown in FIG. 3 is as follows. That is, the alkali (NH 4 OH or Na 2 C
O 3 ) is brought into contact with coke oven gas (hereinafter also referred to as COG) 1 to absorb and remove H 2 S in the gas.
【０００８】この際、他の酸性ガス（HCN 、CO2 など）
も同時に吸収される。H2S を吸収した脱硫液（吸収液）
は脱硫液再生塔４で空気と触媒の作用により酸化されて
コロイド状硫黄を生成し、溶液はもとのアルカリに再生
される。吸収液を循環使用していると副反応としてロダ
ン、チオ硫酸塩などが生成し蓄積してくるので、循環吸
収液の一部を抜き出し、コロイド状硫黄を固液分離装置
10で分離し硫黄を回収した後、分離液の一部を抜き出
し、抜き出した分離液（脱硫廃液）を送給配管12を経由
して脱硫廃液処理設備15に送給し、処理する。At this time, other acid gases (HCN, CO 2 etc.)
Is also absorbed at the same time. Desulfurization solution that has absorbed H 2 S (absorbing liquid)
Is oxidized by the action of air and a catalyst in the desulfurization liquid regeneration tower 4 to produce colloidal sulfur, and the solution is regenerated to the original alkali. If the absorbent is circulated, rodane and thiosulfate are generated and accumulated as side reactions, so a part of the circulating absorbent is withdrawn and a solid-liquid separator for colloidal sulfur
After separating in step 10 to collect sulfur, a part of the separated liquid is extracted, and the extracted separated liquid (desulfurized waste liquid) is sent to a desulfurized waste liquid treatment facility 15 via a feed pipe 12 for processing.
【０００９】図３に示すコークス炉ガス脱硫廃液の処理
設備15においては下記のように、脱硫廃液から硫酸が回
収される。すなわち、固液分離装置10で硫黄分離後の脱
硫液の一部を抜き出し、得られた(a) 脱硫廃液または
(b) 脱硫廃液および硫黄両者を、燃焼炉20に供給し、硫
黄、硫黄化合物を酸化し二酸化硫黄(SO2) とする。In the treatment facility 15 for coke oven gas desulfurization waste liquid shown in FIG. 3, sulfuric acid is recovered from the desulfurization waste liquid as described below. That is, a part of the desulfurization solution after sulfur separation in the solid-liquid separation device 10 was extracted and the obtained (a) desulfurization waste solution or
(b) Both the desulfurization waste liquid and sulfur are supplied to the combustion furnace 20, and sulfur and sulfur compounds are oxidized to sulfur dioxide (SO 2 ).
【００１０】燃焼炉20からのSO2 含有ガスは、燃焼炉20
発生ガスの処理装置21において乾燥（除湿）などの予備
処理が行われた後、転化器22に送給され、転化器22にお
いてSO2 が、Ｖ系触媒などの触媒存在下、接触酸化さ
れ、三酸化硫黄(SO3) が生成する。転化器22からのSO3
含有ガスは、三酸化硫黄(SO3) の処理装置（吸収塔）23
に送給され、吸収塔においてSO3 が水に吸収され硫酸36
が製造される。The SO 2 -containing gas from the combustion furnace 20 is
After a preliminary treatment such as drying (dehumidification) is performed in the generated gas treatment device 21, the gas is sent to a converter 22, where SO 2 is catalytically oxidized in the presence of a catalyst such as a V-based catalyst, Sulfur trioxide (SO 3 ) is produced. SO 3 from converter 22
The gas contained was a sulfur trioxide (SO 3 ) treatment device (absorption tower).
SO 3 is absorbed by water in the absorption tower and sulfuric acid 36
Is manufactured.
【００１１】一方、図３に示すように、転化器22の内部
には、転化器の温度制御のための熱交換器（間接熱交換
器）として、転化器冷却用空気送給配管系統29の一部29
P が蛇管状に配設され、冷却に使用された後の冷却用空
気は大気放散される。以上、コークス炉ガスの脱硫設備
およびその付帯設備である脱硫廃液処理設備について述
べたが、前記した脱硫廃液処理設備15においては、脱硫
廃液を燃焼炉20で燃焼させるために、燃焼用空気予熱器
25で約150 ℃に昇温した空気を用いる。On the other hand, as shown in FIG. 3, inside the converter 22, as a heat exchanger (indirect heat exchanger) for controlling the temperature of the converter, an air supply pipe system 29 for cooling the converter is provided. Part 29
After P is arranged in a serpentine tube and used for cooling, the cooling air is released to the atmosphere. As described above, the desulfurization equipment for coke oven gas and the desulfurization waste liquid treatment equipment as an auxiliary equipment thereof have been described.In the desulfurization waste liquid treatment equipment 15, the combustion air preheater is used in order to burn the desulfurization waste liquid in the combustion furnace 20.
Use air heated to about 150 ° C at 25 ° C.
【００１２】燃焼用空気予熱器25としては、蒸気を熱媒
とした間接熱交換器を用いる。また、この場合、蒸気と
しては、燃焼炉20出側に設けたボイラ27で発生させた蒸
気が用いられている。しかしながら、蒸気を熱媒とした
間接熱交換器を用いて常温の空気を昇温する方法の場
合、大量の蒸気を必要とし、燃焼炉20出側に設けたボイ
ラ27で発生した蒸気を他の目的で使用する場合、その使
用量が制限されてしまう問題があった。As the combustion air preheater 25, an indirect heat exchanger using steam as a heat medium is used. In this case, steam generated by a boiler 27 provided on the exit side of the combustion furnace 20 is used as the steam. However, the method of raising the temperature of room temperature air using an indirect heat exchanger using steam as a heat medium requires a large amount of steam, and the steam generated by the boiler 27 provided on the exit side of the combustion furnace 20 is used as another steam. When used for the purpose, there is a problem that the usage amount is limited.
【００１３】[0013]
【発明が解決しようとする課題】本発明は、前記した従
来技術の問題点を解決し、コークス炉ガス脱硫廃液の処
理設備において省エネルギーを達成できると共に、該設
備において重要な脱硫廃液燃焼炉の炉内圧力制御が可能
なコークス炉ガス脱硫廃液の処理方法および処理設備を
提供することを目的とする。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art and achieves energy saving in a coke oven gas desulfurization waste liquid treatment facility and an important desulfurization waste liquid combustion furnace in the facility. It is an object of the present invention to provide a method and a facility for treating a coke oven gas desulfurization waste liquid capable of controlling internal pressure.
【００１４】[0014]
【課題を解決するための手段】第１の発明は、コークス
炉ガス脱硫廃液を燃焼炉で燃焼し、生成した二酸化硫黄
を転化器で酸化し、生成した三酸化硫黄を処理するコー
クス炉ガス脱硫廃液の処理方法において、前記燃焼炉の
燃焼用空気送風機と、転化器冷却用熱交換器として配管
の一部が前記転化器の内部に配設された転化器冷却用空
気送給配管系統とを設け、該転化器冷却用空気送給配管
系統の転化器出側の昇温空気を、前記燃焼用空気送風機
へ吸引せしめることを特徴とするコークス炉ガス脱硫廃
液の処理方法である。A first aspect of the present invention is a coke oven gas desulfurization in which a coke oven gas desulfurization waste liquid is burned in a combustion furnace, generated sulfur dioxide is oxidized in a converter, and the generated sulfur trioxide is treated. In the waste liquid treatment method, a combustion air blower of the combustion furnace and a converter cooling air supply piping system in which a part of a pipe is disposed inside the converter as a converter cooling heat exchanger. A method for treating coke oven gas desulfurization waste liquid, characterized in that the heated air from the converter outlet side of the converter cooling air supply piping system is sucked into the combustion air blower.
【００１５】前記した第１の発明においては、前記した
転化器出側の昇温空気および大気の両者を前記燃焼用空
気送風機へ吸引せしめることが好ましい。第２の発明
は、コークス炉ガス脱硫廃液を燃焼する燃焼炉20と、該
燃焼炉20で生成した二酸化硫黄を酸化する転化器22と、
該転化器22で生成した三酸化硫黄の処理装置23を有する
コークス炉ガス脱硫廃液の処理設備において、該処理設
備が、前記燃焼炉20へ燃焼用空気を送給する燃焼用空気
配管系統26と、該燃焼用空気配管系統26に設けられた燃
焼用空気送風機24と、転化器冷却用熱交換器として配管
の一部29P が前記転化器22の内部に配設された転化器冷
却用空気送給配管系統29と、該転化器冷却用空気送給配
管系統29の転化器22出側の配管29a と前記燃焼用空気配
管系統26の燃焼用空気送風機24入側の配管26a とを接続
する昇温空気送給配管系統45を有することを特徴とする
コークス炉ガス脱硫廃液の処理設備である。In the first aspect of the present invention, it is preferable that both the heated air and the air on the outlet side of the converter are sucked into the combustion air blower. The second invention includes a combustion furnace 20 for burning coke oven gas desulfurization waste liquid, a converter 22 for oxidizing sulfur dioxide generated in the combustion furnace 20,
In a facility for treating coke oven gas desulfurization waste liquid having a treatment device 23 for sulfur trioxide generated in the converter 22, the treatment facility includes a combustion air piping system 26 for feeding combustion air to the combustion furnace 20. A combustion air blower 24 provided in the combustion air piping system 26 and a converter cooling air blower 24 provided inside the converter 22 with a part 29P of piping as a converter cooling heat exchanger. A supply pipe system 29, a riser connecting a pipe 29a on the outlet side of the converter 22 of the converter cooling air supply pipe system 29 and a pipe 26a on the combustion air blower 24 inlet side of the combustion air pipe system 26. A coke oven gas desulfurization waste liquid treatment facility characterized by having a hot air supply piping system 45.
【００１６】前記した第２の発明においては、(A) 前記
燃焼用空気配管系統26における大気32および転化器22か
らの昇温空気が合流した後の配管で、かつ、燃焼用空気
送風機24入側の配管26b 並びに(B) 燃焼用空気送風機24
出側の配管26c の両者に弁50、弁51を配設することが好
ましい。また、前記した第２の発明においては、前記燃
焼用空気送風機24がモーターの回転数制御方式の送風機
で、かつ、(A) 前記燃焼用空気配管系統26における大気
32および転化器22からの昇温空気が合流した後の配管
で、かつ、燃焼用空気送風機24入側の配管26b および／
または(B) 燃焼用空気送風機24出側の配管26c に弁50お
よび／または弁51を配設することが好ましい。In the second aspect of the present invention, (A) the piping after the atmosphere 32 in the combustion air piping system 26 and the heated air from the converter 22 have joined, and the combustion air blower 24 Side piping 26b and (B) combustion air blower 24
It is preferable to dispose the valve 50 and the valve 51 on both of the outlet pipes 26c. Further, in the second invention, the combustion air blower 24 is a motor rotation speed control type blower, and (A) the air in the combustion air piping system 26
32b and / or a pipe 26b on the inlet side of the combustion air blower 24 after the heated air from the converter 22 has joined.
Or (B) It is preferable to arrange the valve 50 and / or the valve 51 in the pipe 26c on the exit side of the combustion air blower 24.
【００１７】また、前記した第２の発明においては、コ
ークス炉ガス脱硫廃液の燃焼炉20への送給配管12を配設
することが好ましく、さらには、該送給配管12に加えて
さらに硫黄の燃焼炉20への送給配管13を配設することが
より好ましい。In the second aspect of the present invention, it is preferable to provide a feed pipe 12 for supplying the coke oven gas desulfurization waste liquid to the combustion furnace 20. Further, in addition to the feed pipe 12, sulfur It is more preferable to provide a feed pipe 13 to the combustion furnace 20 of the above.
【００１８】[0018]
【発明の実施の形態】以下、本発明をさらに詳細に説明
する。本発明者らは、前記した従来技術の問題点を解決
し、コークス炉ガス脱硫廃液の処理設備において省エネ
ルギーを達成するために鋭意検討した結果、下記知見
(1) 〜(3) を見出し、本発明に至った。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail. The present inventors have solved the problems of the prior art described above, and as a result of intensive studies to achieve energy saving in a coke oven gas desulfurization waste liquid treatment facility, the following findings were obtained.
(1) to (3) have been found, and the present invention has been achieved.
【００１９】(1) 転化器で使用した転化器冷却用空気の
燃焼炉への導入に伴う省エネルギー：転化器で冷却に使
用した空気（温度：約200 〜300 ℃）を、脱硫廃液（ま
たは脱硫廃液および硫黄両者）の燃焼炉へ導入すること
によって、省エネルギーを達成することができる。(1) Energy saving due to introduction of converter cooling air used in the converter into the combustion furnace: air used for cooling in the converter (temperature: about 200 to 300 ° C.) is desulfurized waste liquid (or desulfurized) Energy saving can be achieved by introducing waste liquid and sulfur into the combustion furnace.
【００２０】(2) 転化器で使用した転化器冷却用空気の
燃焼炉への導入に伴う問題点：図２に示すように転化器
22で冷却に使用した空気を、昇温空気送給配管系統44に
よって、直接燃焼炉20に導入する場合、脱硫廃液の燃焼
炉20において重要な燃焼炉炉内圧力の制御が困難とな
り、脱硫廃液処理量、転化器22におけるSO2 への転化率
の制御が困難となる。(2) Problems associated with introduction of converter cooling air used in the converter into the combustion furnace: As shown in FIG.
If the air used for cooling in 22 is directly introduced into the combustion furnace 20 by the heated air supply piping system 44, it becomes difficult to control the pressure in the combustion furnace which is important in the combustion furnace 20 for the desulfurization waste liquid, It becomes difficult to control the throughput and the conversion rate to SO 2 in the converter 22.
【００２１】これは、冷却用空気送風機28からの冷却用
空気によって転化器22内の温度制御を行うため、転化器
22出側の冷却用空気（昇温後の冷却用空気、以下昇温空
気とも記す）の流量および圧力が変動するためである。 (3) 転化器で使用した転化器冷却用空気の燃焼用空気送
風機への導入：この結果、本発明者らは、転化器で冷却
に使用した空気（昇温空気）を、燃焼炉20に付設されて
いる燃焼用空気送風機24へ導入する本発明に想到した。This is because the temperature inside the converter 22 is controlled by the cooling air from the cooling air blower 28.
This is because the flow rate and pressure of the cooling air on the outlet side (cooling air after heating, hereinafter also referred to as heating air) fluctuate. (3) Introduction of the converter cooling air used in the converter to the combustion air blower: As a result, the present inventors transfer the air used for cooling in the converter (heated air) to the combustion furnace 20. The present invention has been conceived to be introduced into the attached combustion air blower 24.
【００２２】上記した本発明によれば、コークス炉ガス
脱硫廃液の処理設備において省エネルギーを達成できる
と共に、該設備において重要な脱硫廃液燃焼炉の炉内圧
力制御が可能となった。図１に、本発明のコークス炉ガ
ス脱硫廃液の処理設備の一例を、フローシートによって
示す。According to the present invention described above, energy saving can be achieved in a coke oven gas desulfurization waste liquid treatment facility, and the pressure inside the desulfurization waste liquid combustion furnace, which is important in the facility, can be controlled. FIG. 1 is a flow sheet showing an example of a facility for treating coke oven gas desulfurization waste liquid of the present invention.
【００２３】図１に示すコークス炉ガス脱硫廃液の処理
設備は、前記した図３の脱硫塔（吸収塔）３、脱硫液再
生塔（酸化塔）４、固液分離装置10を有し、図３の脱硫
方式で脱硫して発生した脱硫廃液、硫黄を処理する処理
設備である。なお、図１において、26a は燃焼用空気送
風機24入側の配管、26b は燃焼用空気配管系統26におけ
る大気32および転化器22からの昇温空気が合流した後の
配管で、かつ、燃焼用空気送風機24入側の配管、26c は
燃焼用空気送風機24出側の配管、29a は転化器冷却用空
気送給配管系統29の転化器22出側の配管、40はコークス
炉ガス脱硫廃液（：脱硫廃液）、41は硫黄、45は昇温空
気送給配管系統、46、47、48はそれぞれ燃焼用空気配管
系統26に設けられた配管内空気の圧力指示調節計(PIC)
、配管内空気の温度指示計(TI)、配管内空気の流量指
示調節計(FIC) 、50は弁（圧力調節弁）、51は弁（流量
調節弁）を示し、その他の符号は図３と同一の内容を示
す。The processing equipment for coke oven gas desulfurization waste liquid shown in FIG. 1 includes the desulfurization tower (absorption tower) 3, desulfurization liquid regeneration tower (oxidation tower) 4, and solid-liquid separation device 10 shown in FIG. This is a treatment facility for treating desulfurization waste liquid and sulfur generated by desulfurization by the desulfurization method of No. 3. In FIG. 1, 26a is a pipe on the inlet side of the combustion air blower 24, 26b is a pipe after the atmosphere 32 in the combustion air piping system 26 and the heated air from the converter 22 have joined, and The pipe on the inlet side of the air blower 24, 26c is the pipe on the outlet side of the combustion air blower 24, 29a is the pipe on the outlet side of the converter 22 of the converter cooling air supply pipe system 29, and 40 is the coke oven gas desulfurization waste liquid (: (Desulfurization waste liquid), 41 is sulfur, 45 is a heated air supply piping system, 46, 47, 48 are pressure indication controllers (PIC) for air in the piping provided in the combustion air piping system 26, respectively.
, Pipe air temperature indicator (TI), pipe air flow indicator (FIC), 50 indicates a valve (pressure control valve), 51 indicates a valve (flow control valve), and other symbols indicate FIG. Indicates the same content as.
【００２４】また、図１に示されるように、昇温空気送
給配管系統45は、冷却用空気送給配管系統29の転化器22
出側（昇温空気排出側）の配管29a と燃焼用空気配管系
統26の燃焼用空気送風機24入側の配管26a とを接続し、
転化器22で昇温された冷却用空気（昇温空気）を燃焼炉
20へ送給するための昇温空気送給配管系統である。すな
わち、図１に示すコークス炉ガス脱硫廃液の処理設備15
においては、燃焼炉20の燃焼用空気送風機24と、転化器
冷却用熱交換器として配管の一部29P が転化器22の内部
に配設され転化器22内の温度を制御するための転化器冷
却用空気送給配管系統29を設け、転化器22で昇温された
冷却用空気（昇温空気）を、燃焼用空気送風機24へ吸引
せしめる。As shown in FIG. 1, the heated air supply pipe system 45 is connected to the converter 22 of the cooling air supply pipe system 29.
The pipe 29a on the outlet side (heated air discharge side) is connected to the pipe 26a on the inlet side of the combustion air blower 24 of the combustion air piping system 26,
The cooling air (heated air) heated by the converter 22 is heated by a combustion furnace.
This is a heating air supply piping system for feeding to 20. That is, the coke oven gas desulfurization waste liquid treatment equipment 15 shown in FIG.
In the above, a combustion air blower 24 of the combustion furnace 20 and a converter 29 for controlling the temperature in the converter 22 in which a part 29P of a pipe as a heat exchanger for cooling the converter is disposed inside the converter 22 A cooling air supply piping system 29 is provided, and the cooling air (heated air) heated by the converter 22 is sucked into the combustion air blower 24.
【００２５】また、図１に示すコークス炉ガス脱硫廃液
の処理設備15は、燃焼炉20へ燃焼用空気を送給する燃焼
用空気配管系統26と、燃焼用空気配管系統26に設けられ
た燃焼用空気送風機24と、転化器冷却用熱交換器として
配管の一部29P が転化器22の内部に配設され転化器22内
の温度を制御するための転化器冷却用空気送給配管系統
29と、転化器冷却用空気送給配管系統29の転化器22出側
（昇温空気排出側）の配管29a と燃焼用空気配管系統26
の燃焼用空気送風機24入側の配管26a とを接続し、転化
器22で昇温された転化器冷却用空気（昇温空気）を燃焼
炉20へ送給するための昇温空気送給配管系統45を有する
コークス炉ガス脱硫廃液の処理設備である。The coke oven gas desulfurization waste liquid treatment equipment 15 shown in FIG. 1 includes a combustion air piping system 26 for supplying combustion air to the combustion furnace 20 and a combustion air piping system 26 provided in the combustion air piping system 26. Air blower 24 and a converter cooling air supply piping system for controlling the temperature inside the converter 22 with a part 29P of piping as a heat exchanger for cooling the converter arranged inside the converter 22
29, a pipe 29a on the outlet side (heated air discharge side) of the converter 22 of the converter cooling air supply pipe system 29, and a combustion air pipe system 26.
And a heating air supply pipe for supplying the converter cooling air (heated air) heated by the converter 22 to the combustion furnace 20 by connecting the pipe 26a to the combustion air blower 24 inlet side. This is a coke oven gas desulfurization waste liquid treatment facility having a system 45.
【００２６】前記した本発明のコークス炉ガス脱硫廃液
の処理方法、処理設備によれば、転化器22で冷却に使用
した後の昇温空気（温度：約200 〜300 ℃）を燃焼炉20
の燃焼用空気として用いることによって、従来燃焼用空
気予熱器25で使用していた蒸気などの熱媒体の使用量を
削減でき、省エネルギーを達成できる。さらに、上記し
た本発明のコークス炉ガス脱硫廃液の処理方法、処理設
備によれば、転化器22で冷却に使用した後の昇温空気
を、燃焼用空気送風機24に導入することによって、転化
器22で昇温された後の冷却用空気の流量、圧力が変化し
ても、燃焼炉20の燃焼用空気の流量および燃焼炉20の炉
内圧力の両者を適切な条件に制御することができる。According to the method and equipment for treating a coke oven gas desulfurization waste liquid of the present invention, the heated air (temperature: about 200 to 300 ° C.) used for cooling in the converter 22 is used for the combustion furnace 20.
By using it as combustion air, the amount of heat medium such as steam used in the conventional combustion air preheater 25 can be reduced, and energy saving can be achieved. Furthermore, according to the method and apparatus for treating a coke oven gas desulfurization waste liquid of the present invention described above, the heated air used for cooling in the converter 22 is introduced into the combustion air blower 24, Even if the flow rate and pressure of the cooling air after the temperature rises in 22, both the flow rate of the combustion air in the combustion furnace 20 and the pressure in the furnace of the combustion furnace 20 can be controlled to appropriate conditions. .
【００２７】また、燃焼炉20における空気バランス上、
転化器出側の昇温空気および大気32の両者を燃焼炉20に
供給するに際して、転化器出側の昇温空気および大気32
の両者を燃焼用空気送風機24に導入することによって、
燃焼炉20の燃焼用空気の流量および燃焼炉20の炉内圧力
の両者を適切な条件に制御することができる。すなわ
ち、図１に示すコークス炉ガス脱硫廃液の処理設備15に
よれば、転化器22で昇温された後の冷却用空気の流量、
圧力が変化しても、弁（圧力調節弁）50、弁（流量調節
弁）51の開度の調節によって、燃焼炉20の燃焼用空気の
流量および燃焼炉20の炉内圧力の両者を適切な条件に制
御することができる。Also, due to the air balance in the combustion furnace 20,
When both the heated air and the atmosphere 32 on the outlet side of the converter are supplied to the combustion furnace 20, the heated air and the atmosphere 32 on the outlet side of the converter are supplied.
By introducing both into the combustion air blower 24,
Both the flow rate of the combustion air in the combustion furnace 20 and the pressure in the furnace of the combustion furnace 20 can be controlled to appropriate conditions. That is, according to the processing equipment 15 for coke oven gas desulfurization waste liquid shown in FIG. 1, the flow rate of the cooling air after the temperature has been raised in the converter 22,
Even if the pressure changes, both the flow rate of the combustion air in the combustion furnace 20 and the pressure in the furnace of the combustion furnace 20 can be appropriately adjusted by adjusting the opening of the valve (pressure control valve) 50 and the valve (flow rate control valve) 51. Conditions can be controlled.
【００２８】なお、図１に示すコークス炉ガス脱硫廃液
の処理設備15においては、燃焼用空気送風機24としてモ
ーターの回転数制御方式の送風機を配設すると共に、
(A) 燃焼用空気配管系統26における大気32および転化器
22からの昇温空気が合流した後の配管で、かつ、燃焼用
空気送風機24入側の配管26b および／または(B) 燃焼用
空気送風機24出側の配管26c に弁50および／または弁51
を配設し、燃焼用空気送風機24のモータの回転数制御を
行い、かつ、弁50および／または弁51の開度を調節する
ことによっても、燃焼炉20の燃焼用空気の流量および燃
焼炉20の炉内圧力の両者を適切な条件に制御することが
できる。In the treatment equipment 15 for coke oven gas desulfurization waste liquid shown in FIG. 1, a blower of a motor rotation speed control type is provided as a combustion air blower 24.
(A) Atmosphere 32 and converter in combustion air piping system 26
The valve 50 and / or the valve 51 are connected to the pipe after the heated air from 22 has joined and to the pipe 26b on the inlet side of the combustion air blower 24 and / or (B) the pipe 26c on the outlet side of the combustion air blower 24.
By controlling the rotation speed of the motor of the combustion air blower 24 and adjusting the opening of the valve 50 and / or the valve 51, the flow rate of the combustion air of the combustion furnace 20 and the combustion furnace Both of the 20 furnace pressures can be controlled to appropriate conditions.
【００２９】上記したモーターの回転数制御方式の送風
機を配設する方式の場合は、上記した弁50を配設し、燃
焼用空気送風機24のモータの回転数制御を行い、かつ、
弁50の開度を調節することがより好ましい。なお、本発
明においては、前記した弁50、弁51としては、スルース
弁、ダンパー、ボールバルブなどを用いることができ、
弁開度調節可能な弁であればその方式、型式は特に制限
されるものではない。In the case of a system in which a blower of the above-described motor rotation speed control system is provided, the above-described valve 50 is provided to control the rotation speed of the motor of the combustion air blower 24, and
More preferably, the opening of the valve 50 is adjusted. In the present invention, as the valve 50 and the valve 51, a sluice valve, a damper, a ball valve, or the like can be used.
The type and model of the valve whose valve opening can be adjusted are not particularly limited.
【００３０】また、本発明においては、燃焼用空気送風
機24としては、高温用ブロワーを用いることが好まし
い。また、本発明における三酸化硫黄の処理装置23とし
ては、図１に示すSO3 を水35で吸収し硫酸36とする吸収
塔、SO3 を水酸化カルシウム含有水溶液で吸収し石膏と
する吸収塔、SO3 を吸着剤で吸着する吸着塔などSO3 を
捕集可能な装置であれば任意の装置を用いることができ
る。In the present invention, it is preferable to use a high-temperature blower as the combustion air blower 24. The sulfur trioxide treatment apparatus 23 of the present invention includes an absorption tower shown in FIG. 1 in which SO 3 is absorbed by water 35 and converted into sulfuric acid 36, and an absorption tower in which SO 3 is absorbed by an aqueous solution containing calcium hydroxide and converted into gypsum. Any device can be used as long as it can capture SO 3 , such as an adsorption tower that adsorbs SO 3 with an adsorbent.
【００３１】以上、本発明のコークス炉ガス脱硫廃液の
処理方法、処理設備について述べたが、本発明によれ
ば、コークス炉ガス脱硫廃液の処理設備の省エネルギー
を達成でき、さらに、脱硫廃液処理設備において重要な
脱硫廃液燃焼炉の炉内圧力制御が可能であると共に、極
めて簡易な設備でこれらを達成できるという優れた効果
を得ることができる。Although the method and equipment for treating a coke oven gas desulfurization waste liquid according to the present invention have been described above, according to the present invention, the energy saving of the equipment for treating a coke oven gas desulfurization waste liquid can be achieved. It is possible to obtain an excellent effect that it is possible to control the internal pressure of the desulfurization waste liquid combustion furnace, which is important, and to achieve these with extremely simple equipment.
【００３２】[0032]
【実施例】以下、本発明を実施例に基づきさらに具体的
に説明する。 （実施例１）前記した図１に示すコークス炉ガス脱硫廃
液の処理設備15を用いてコークス炉ガス脱硫廃液40の処
理を行った。The present invention will be described more specifically below with reference to examples. (Example 1) The coke oven gas desulfurization waste liquid 40 was treated using the coke oven gas desulfurization waste liquid treatment equipment 15 shown in FIG.
【００３３】脱硫法としては、脱硫液（吸収液）のアル
カリとしてNH4OH 、触媒としてピクリン酸を用いたフマ
ックス・ロダックス式脱硫法を用いた。転化器22出側の
昇温空気（約270 ℃）は全量燃焼用空気送風機24へ送給
し、弁（圧力調節弁）50および弁（流量調節弁）51両者
の開度を調節することにより燃焼炉20の燃焼用空気の流
量、燃焼炉20の炉内圧力の制御を行った。As a desulfurization method, a Humax-Rodax desulfurization method using NH 4 OH as an alkali of a desulfurization solution (absorbing solution) and picric acid as a catalyst was used. The heated air (approximately 270 ° C.) at the outlet side of the converter 22 is supplied to the full-combustion air blower 24, and the opening of both the valve (pressure control valve) 50 and the valve (flow rate control valve) 51 is adjusted. The flow rate of combustion air in the combustion furnace 20 and the pressure in the furnace of the combustion furnace 20 were controlled.
【００３４】この結果、本実施例では燃焼用空気予熱器
25へ蒸気を供給する必要がなくなり、本発明のコークス
炉ガス脱硫廃液の処理方法および処理設備によれば、燃
焼用空気予熱器25の蒸気使用量を 100％削減することが
可能となった。さらに、本発明の処理方法、処理設備に
よれば、転化器22で昇温された後の転化器冷却用空
気（：転化器22出側の昇温空気）の流量、圧力が変化し
ても、弁（圧力調節弁）50、弁（流量調節弁）51の開度
の調節によって、燃焼炉20の燃焼用空気の流量および燃
焼炉20の炉内圧力の両者を適切な条件に制御することが
できた。As a result, in this embodiment, the combustion air preheater
There is no need to supply steam to the coke oven gas desulfurization waste liquor of the present invention, and the amount of steam used in the combustion air preheater 25 can be reduced by 100%. Further, according to the processing method and the processing equipment of the present invention, even if the flow rate and the pressure of the converter cooling air (the heated air at the outlet side of the converter 22) after the temperature is raised in the converter 22 change. By controlling the opening of the valve (pressure control valve) 50 and the valve (flow rate control valve) 51, both the flow rate of combustion air in the combustion furnace 20 and the pressure in the furnace 20 are controlled to appropriate conditions. Was completed.
【００３５】（実施例２）前記した図１に示すコークス
炉ガス脱硫廃液の処理設備15を用いてコークス炉ガス脱
硫廃液40および硫黄41の処理を行った。なお、本実施例
においては、脱硫廃液の処理設備15の燃焼用空気送風機
24としてモーターの回転数制御方式の送風機を配設し、
燃焼用空気送風機24のモータの回転数制御および弁50の
開度を調節することにより、燃焼炉20の燃焼用空気の流
量、燃焼炉20の炉内圧力を制御し、この制御方法を用い
た以外は前記した実施例１と同様の操業条件で操業を行
った。Example 2 The coke oven gas desulfurization waste liquid 40 and sulfur 41 were treated using the coke oven gas desulfurization waste liquid treatment equipment 15 shown in FIG. In this embodiment, a combustion air blower of the desulfurization waste liquid treatment equipment 15 is used.
As 24, a blower with motor speed control system is installed,
By controlling the rotation speed of the motor of the combustion air blower 24 and adjusting the opening of the valve 50, the flow rate of combustion air in the combustion furnace 20 and the pressure in the furnace 20 were controlled, and this control method was used. The operation was carried out under the same operating conditions as in Example 1 except for the above.
【００３６】上記した操業試験の結果、本実施例におい
ても燃焼用空気予熱器25へ蒸気を供給する必要がなくな
り、本発明のコークス炉ガス脱硫廃液の処理方法および
処理設備によれば、燃焼用空気予熱器25の蒸気使用量を
100％削減することが可能となった。さらに、本発明の
処理方法、処理設備によれば、転化器22で昇温された後
の転化器冷却用空気（：転化器22出側の昇温空気）の流
量、圧力が変化しても、燃焼用空気送風機24のモータの
回転数制御および弁50の開度の調節によって、燃焼炉20
の燃焼用空気の流量および燃焼炉20の炉内圧力の両者を
適切な条件に制御することができた。As a result of the operation test described above, it is no longer necessary to supply steam to the combustion air preheater 25 in this embodiment, and according to the method and equipment for treating a coke oven gas desulfurization waste liquid of the present invention, Reduce the amount of steam used by the air preheater 25
It is possible to reduce 100%. Further, according to the processing method and the processing equipment of the present invention, even if the flow rate and the pressure of the converter cooling air (the heated air at the outlet side of the converter 22) after the temperature is raised in the converter 22 change. The combustion furnace 20 is controlled by controlling the rotation speed of the motor of the combustion air blower 24 and adjusting the opening of the valve 50.
It was possible to control both the flow rate of the combustion air and the pressure in the furnace of the combustion furnace 20 under appropriate conditions.
【００３７】以上、実施例について述べたが、本発明
は、前記したフマックス・ロダックス式脱硫法、脱硫設
備で発生した脱硫廃液の処理に限定されることなく、タ
カハックス式脱硫法、脱硫設備で発生した脱硫廃液な
ど、脱硫廃液中に硫黄および／または硫黄化合物を含有
するコークス炉ガス脱硫廃液全般の処理方法および処理
設備として用いることが可能である。Although the embodiments have been described above, the present invention is not limited to the above-mentioned Humax-Rodax type desulfurization method and the treatment of the desulfurization waste liquid generated in the desulfurization equipment, but may be applied to the Takahax type desulfurization method and the desulfurization equipment. The present invention can be used as a general method and equipment for treating coke oven gas desulfurization waste liquid containing sulfur and / or a sulfur compound in the desulfurization waste liquid such as the above desulfurization waste liquid.
【００３８】[0038]
【発明の効果】本発明によれば、極めて簡易な設備で、
コークス炉ガス脱硫廃液の処理設備の省エネルギーを達
成できると共に、脱硫廃液処理設備において重要な脱硫
廃液燃焼炉の炉内圧力制御が可能なコークス炉ガス脱硫
廃液の処理方法および処理設備を提供することが可能と
なった。According to the present invention, with extremely simple equipment,
Provided is a method and a processing apparatus for coke oven gas desulfurization waste liquid which can achieve energy saving of a processing equipment for coke oven gas desulfurization waste liquid and can control the pressure in a furnace of a desulfurization waste liquid combustion furnace which is important in the desulfurization waste liquid treatment equipment. It has become possible.
【図１】本発明のコークス炉ガス脱硫廃液の処理設備の
一例を示すフローシートである。FIG. 1 is a flow sheet showing an example of a facility for treating a coke oven gas desulfurization waste liquid of the present invention.
【図２】コークス炉ガス脱硫廃液の処理設備を示すフロ
ーシートである。FIG. 2 is a flow sheet showing equipment for treating a coke oven gas desulfurization waste liquid.
【図３】従来のコークス炉ガス脱硫設備および脱硫廃液
の処理設備を示すフローシートである。FIG. 3 is a flow sheet showing a conventional coke oven gas desulfurization facility and a desulfurization waste liquid treatment facility.
１ コークス炉ガス ２ 脱硫コークス炉ガス ３ 脱硫塔（吸収塔） ４ 脱硫液再生塔（酸化塔） ５ 脱硫液（アルカリ水溶液）の送給配管 ６ アルカリ ７ 触媒 ８ 脱硫液再生用空気 ９ 脱硫液再生用空気の処理装置 10 固液分離装置 11 硫黄 12 脱硫廃液（硫黄、硫黄化合物含有スラリー）の燃焼
炉への送給配管 13 硫黄の燃焼炉への送給配管 15 コークス炉ガス脱硫廃液の処理設備（：脱硫廃液処
理設備） 20 脱硫廃液の燃焼炉 21 燃焼炉発生ガスの処理装置（：予備処理装置） 22 転化器 23 三酸化硫黄の処理装置 24 燃焼用空気送風機 25 燃焼用空気予熱器 26 燃焼用空気配管系統 26a 燃焼用空気送風機入側の配管 26b 大気および昇温空気が合流した後、かつ、燃焼用
空気送風機入側の配管 26c 燃焼用空気送風機出側の配管 27 ボイラ 28 冷却用空気送風機 29 転化器冷却用空気送給配管系統 29a 転化器出側の配管 29P 転化器冷却用空気送給配管系統の一部 30 排ガス処理装置 31 燃料 32 大気（燃焼用空気） 33 水（ボイラ用水） 34 大気（冷却用空気） 35 吸収液（水） 36 硫酸 37 蒸気 38 回収ドレン 40 コークス炉ガス脱硫廃液（脱硫廃液） 41 硫黄 44、45 昇温空気送給配管系統 46 圧力指示調節計(PIC) 47 温度指示計(TI) 48 流量指示調節計(FIC) 50 弁（圧力調節弁） 51 弁（流量調節弁）Reference Signs List 1 coke oven gas 2 desulfurization coke oven gas 3 desulfurization tower (absorption tower) 4 desulfurization liquid regeneration tower (oxidation tower) 5 supply pipe for desulfurization liquid (alkaline aqueous solution) 6 alkali 7 catalyst 8 desulfurization liquid regeneration air 9 desulfurization liquid regeneration Air treatment equipment 10 Solid-liquid separation equipment 11 Sulfur 12 Pipe for supplying desulfurization waste liquid (slurry containing sulfur and sulfur compounds) to combustion furnace 13 Pipe for supplying sulfur to combustion furnace 15 Coke oven gas desulfurization waste treatment equipment (: Desulfurization waste liquid treatment equipment) 20 Desulfurization waste liquid combustion furnace 21 Combustion furnace generated gas treatment equipment (: pretreatment equipment) 22 Converter 23 Sulfur trioxide treatment equipment 24 Combustion air blower 25 Combustion air preheater 26 Combustion Air piping system 26a Piping on the inlet side of the combustion air blower 26b Piping on the inlet side of the combustion air blower after the atmosphere and heated air have joined 26c Piping on the outlet side of the combustion air blower 27 Boiler 28 Cooling air blower 29 turns Air supply piping system for converter cooling 29a Piping on converter outlet side 29P Part of air supply piping system for converter cooling 30 Exhaust gas treatment equipment 31 Fuel 32 Atmosphere (combustion air) 33 Water (boiler water) 34 Atmosphere ( Cooling air) 35 Absorbent (water) 36 Sulfuric acid 37 Steam 38 Recovered drain 40 Coke oven gas desulfurization waste liquid (desulfurization waste liquid) 41 Sulfur 44, 45 Heated air supply piping system 46 Pressure indication controller (PIC) 47 Temperature indication Total (TI) 48 Flow indication controller (FIC) 50 valve (pressure control valve) 51 valve (flow control valve)
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｆ２３Ｇ 5/44 ＺＡＢ Ｆ２３Ｌ 15/00 Ａ 5/46 ＺＡＢ Ｂ０１Ｄ 53/34 １２５Ｋ Ｆ２３Ｊ 15/00 Ｆ２３Ｊ 15/00 Ｂ Ｆ２３Ｌ 15/00 Ｆターム(参考） 3K023 QA11 QB13 QB18 QB20 QC08 3K065 AA18 AB01 AC05 BA05 GA03 GA07 GA12 GA23 GA27 GA32 GA52 GA53 JA03 JA05 JA15 JA18 JA23 3K070 DA03 DA14 DA23 DA26 DA50 DA62 DA64 DA66 4D002 AA03 AC03 BA02 BA05 CA13 DA07 DA12 DA16 DA35 EA02 EA11 EA13 FA07 FA08 HA08 4H012 GB00 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) F23G 5/44 ZAB F23L 15/00 A 5/46 ZAB B01D 53/34 125K F23J 15/00 F23J 15/00 B F23L 15/00 F term (reference) 3K023 QA11 QB13 QB18 QB20 QC08 3K065 AA18 AB01 AC05 BA05 GA03 GA07 GA12 GA23 GA27 GA32 GA52 GA53 JA03 JA05 JA15 JA18 JA23 3K070 DA03 DA14 DA23 DA26 DA50 DA62 DA64 DA03 AC03 BA03 DA03 AC03 DA12 DA16 DA35 EA02 EA11 EA13 FA07 FA08 HA08 4H012 GB00
Claims (2)
し、生成した二酸化硫黄を転化器で酸化し、生成した三
酸化硫黄を処理するコークス炉ガス脱硫廃液の処理方法
において、前記燃焼炉の燃焼用空気送風機と、転化器冷
却用熱交換器として配管の一部が前記転化器の内部に配
設された転化器冷却用空気送給配管系統とを設け、該転
化器冷却用空気送給配管系統の転化器出側の昇温空気
を、前記燃焼用空気送風機へ吸引せしめることを特徴と
するコークス炉ガス脱硫廃液の処理方法。1. A method for treating a coke oven gas desulfurization waste liquid, wherein the coke oven gas desulfurization waste liquid is burned in a combustion furnace, the generated sulfur dioxide is oxidized by a converter, and the generated sulfur trioxide is treated. A combustion air blower, and a converter cooling air supply piping system in which a part of piping is disposed inside the converter as a converter cooling heat exchanger, and the converter cooling air supply system is provided. A method for treating coke oven gas desulfurization waste liquid, wherein heated air at a converter outlet side of a piping system is sucked into the combustion air blower.
炉(20)と、該燃焼炉(20)で生成した二酸化硫黄を酸化す
る転化器(22)と、該転化器(22)で生成した三酸化硫黄の
処理装置(23)を有するコークス炉ガス脱硫廃液の処理設
備において、該処理設備が、前記燃焼炉(20)へ燃焼用空
気を送給する燃焼用空気配管系統(26)と、該燃焼用空気
配管系統(26)に設けられた燃焼用空気送風機(24)と、転
化器冷却用熱交換器として配管の一部(29P) が前記転化
器(22)の内部に配設された転化器冷却用空気送給配管系
統(29)と、該転化器冷却用空気送給配管系統(29)の転化
器(22)出側の配管(29a) と前記燃焼用空気配管系統(26)
の燃焼用空気送風機(24)入側の配管(26a) とを接続する
昇温空気送給配管系統(45)を有することを特徴とするコ
ークス炉ガス脱硫廃液の処理設備。2. A combustion furnace (20) for burning a coke oven gas desulfurization waste liquid, a converter (22) for oxidizing sulfur dioxide generated in the combustion furnace (20), and a converter produced by the converter (22). In a treatment facility for coke oven gas desulfurization waste liquid having a sulfur trioxide treatment device (23), the treatment facility includes a combustion air piping system (26) for feeding combustion air to the combustion furnace (20), A combustion air blower (24) provided in the combustion air piping system (26) and a part of the piping (29P) as a heat exchanger for cooling the converter are disposed inside the converter (22). The converter cooling air supply pipe system (29), the converter (22) outlet pipe (29a) of the converter cooling air supply pipe system (29), and the combustion air pipe system (26 )
A coke oven gas desulfurization waste liquid treatment facility, comprising a heated air supply piping system (45) for connecting the piping (26a) on the inlet side of the combustion air blower (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000119666A JP2001304529A (en) | 2000-04-20 | 2000-04-20 | Method and apparatus for treating coke furnace gas desulfurization waste solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000119666A JP2001304529A (en) | 2000-04-20 | 2000-04-20 | Method and apparatus for treating coke furnace gas desulfurization waste solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001304529A true JP2001304529A (en) | 2001-10-31 |
Family
ID=18630598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000119666A Pending JP2001304529A (en) | 2000-04-20 | 2000-04-20 | Method and apparatus for treating coke furnace gas desulfurization waste solution |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001304529A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434889A (en) * | 2011-09-07 | 2012-05-02 | 安徽金禾实业股份有限公司 | Method for treating tail gas generated by sulfur dioxide production |
| CN102889602A (en) * | 2012-07-10 | 2013-01-23 | 上海禾子隆环保科技有限公司 | High-concentration salt bearing liquid waste incinerator and high-concentration salt bearing liquid waste treatment method |
| CN103868078A (en) * | 2014-02-14 | 2014-06-18 | 国家电网公司 | Waste liquor treatment device and waste liquor treatment process |
| CN107930375A (en) * | 2017-12-21 | 2018-04-20 | 中冶焦耐(大连)工程技术有限公司 | The processing method of desulfurization waste liquor produced by a kind of coke-stove gas wet oxidation desulfurization |
-
2000
- 2000-04-20 JP JP2000119666A patent/JP2001304529A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434889A (en) * | 2011-09-07 | 2012-05-02 | 安徽金禾实业股份有限公司 | Method for treating tail gas generated by sulfur dioxide production |
| CN102889602A (en) * | 2012-07-10 | 2013-01-23 | 上海禾子隆环保科技有限公司 | High-concentration salt bearing liquid waste incinerator and high-concentration salt bearing liquid waste treatment method |
| CN103868078A (en) * | 2014-02-14 | 2014-06-18 | 国家电网公司 | Waste liquor treatment device and waste liquor treatment process |
| CN107930375A (en) * | 2017-12-21 | 2018-04-20 | 中冶焦耐(大连)工程技术有限公司 | The processing method of desulfurization waste liquor produced by a kind of coke-stove gas wet oxidation desulfurization |
| CN107930375B (en) * | 2017-12-21 | 2023-10-24 | 中冶焦耐(大连)工程技术有限公司 | Treatment method of desulfurization waste liquid generated by wet oxidation desulfurization of coke oven gas |
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