JPS5848353Y2 - Bench lily for blast furnace gas cleaning - Exhaust pressure energy recovery device for scrubber wastewater - Google Patents
Bench lily for blast furnace gas cleaning - Exhaust pressure energy recovery device for scrubber wastewaterInfo
- Publication number
- JPS5848353Y2 JPS5848353Y2 JP4371681U JP4371681U JPS5848353Y2 JP S5848353 Y2 JPS5848353 Y2 JP S5848353Y2 JP 4371681 U JP4371681 U JP 4371681U JP 4371681 U JP4371681 U JP 4371681U JP S5848353 Y2 JPS5848353 Y2 JP S5848353Y2
- Authority
- JP
- Japan
- Prior art keywords
- blast furnace
- wastewater
- recovery device
- energy recovery
- gas cleaning
- 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.)
- Expired
Links
Landscapes
- Blast Furnaces (AREA)
- Separation Of Particles Using Liquids (AREA)
Description
【考案の詳細な説明】
本考案は高炉ガス清浄用ベンチュリースクラバ排水の排
圧エネルギー回収装置に関するものである。[Detailed Description of the Invention] The present invention relates to an exhaust pressure energy recovery device for venturi scrubber wastewater for blast furnace gas cleaning.
高炉のガス清浄設備の一環としてベンチュリースクラバ
（以下■Ｓと略称する）設備が設けられている。Venturi scrubber (hereinafter abbreviated as ■S) equipment is installed as part of the blast furnace gas cleaning equipment.
このＶＳ設備は第１，２図に示すように構成されている
。This VS equipment is constructed as shown in FIGS. 1 and 2.
即ち、ミストセパレーター１中にベンチュリー管２を装
入し、高炉から排出された含塵ガスをミストセパレータ
ー１内に導入して、排ガスと塵埃とに分離し、排ガスを
排ガス管３で排ガスタービン（図示省略）等へ送るよう
になっている。That is, a Venturi tube 2 is inserted into the mist separator 1, and the dust-containing gas discharged from the blast furnace is introduced into the mist separator 1 and separated into exhaust gas and dust.The exhaust gas is passed through the exhaust gas pipe 3 to the exhaust gas turbine ( (not shown), etc.
ベンチュリー管２においては絞り部４において洗浄水ノ
ズル配管５と噴射水ノズル配管６から噴霧状の水を含塵
ガスにかけ、更に一旦スロート部７で含塵ガスの加速を
図った後、ミストセパレータ１内に開放し、ガス速度の
低下及びガスの方向変換を図ることにより、含塵ガス中
の含塵量を減少（ダスト除去）させている。In the Venturi tube 2, atomized water is applied to the dust-containing gas from the cleaning water nozzle pipe 5 and the jet water nozzle pipe 6 in the constriction part 4, and once the dust-containing gas is accelerated in the throat part 7, the mist separator 1 The amount of dust contained in the dust-containing gas is reduced (dust removed) by opening the gas to the inside, reducing the gas velocity and changing the direction of the gas.
大型高炉に設置されたＶＳ設備では通常７００ｔ／ｈ程
度の水を前記配管５，６及び冷却水ノズル配管８から噴
霧水として供給し、循環使用している。In the VS equipment installed in a large blast furnace, approximately 700 t/h of water is normally supplied as spray water from the pipes 5 and 6 and the cooling water nozzle pipe 8, and is used for circulation.
この循環に当っては、ミストセパレータ１の下部に連通
した排水管９のび急遮断弁１０及びオーバーフロー弁１
１を通って他方の緊急排水管１２側に設けた排水トラフ
１３に排出されて循環使用する。For this circulation, a drain pipe 9 is connected to the lower part of the mist separator 1, and a quick shutoff valve 10 and an overflow valve 1 are provided.
1 and is discharged to a drainage trough 13 provided on the other side of the emergency drainage pipe 12 for circulation use.
そして、オーバーフロー弁１１の故障等が発生し、緊急
に排水を停止したい場合は緊急遮断弁１０を閉じる。If a malfunction or the like occurs in the overflow valve 11 and it is desired to urgently stop drainage, the emergency shutoff valve 10 is closed.
尚、図中１４はスラッジ排出管である。通常はミストセ
パレータ１の水位を、ミストセパレータ１の下部と連通
させた水位検出タンク１５．１５’にて検出し、オーバ
ーフロー弁１１の開閉操作により（緊急遮断弁１０は全
開にて使用）コントロールさている。In addition, 14 in the figure is a sludge discharge pipe. Normally, the water level in the mist separator 1 is detected by a water level detection tank 15, 15' that communicates with the lower part of the mist separator 1, and is controlled by opening and closing the overflow valve 11 (the emergency shutoff valve 10 is used fully open). There is.
このオーバーフロー弁１１でコントロールできなくなる
と、他方の緊急排水管１２に設けた緊急排水弁１６が作
動してオーバーフロー弁１７を介して排出トラフ１３に
排水する。When the overflow valve 11 is no longer able to control the water, the emergency drain valve 16 provided on the other emergency drain pipe 12 operates to drain water into the discharge trough 13 via the overflow valve 17.
尚、ミストセパレータ１内の圧力は炉頂圧と同等に制御
されているもので、通常、大型高炉においては炉頂圧２
．５ ｋｇ／ｃｍ２程度で操業されている。The pressure inside the mist separator 1 is controlled to be equal to the furnace top pressure, and normally in large blast furnaces, the furnace top pressure 2
．． It is operated at around 5 kg/cm2.
今、炉頂圧力をＰ ｔ （ｋｇ／ｃｍ２１オーバーフロ
ー弁直前の水圧全直前Ｈ（ｋｇ／ｃｍ２）、ミストセパ
レータ内の定常時の水位とオーバーフロー弁中心までの
水位高さをＨ（ｍ）とすると、（但し排水配管のロスを
無視する）
Ｐｔ＝ＰＨ＋ｒＨ
即ち ＰＨ＝Ｐｔ−ｒＨとなる。Now, if the furnace top pressure is P t (kg/cm21), then the water pressure immediately before the overflow valve is H (kg/cm2), and the water level height between the steady state water level in the mist separator and the center of the overflow valve is H (m). (However, the loss in the drainage pipe is ignored) Pt=PH+rH, that is, PH=Pt-rH.
但しｒは液の単位体積当りの重量
通常の大型炉の操業ゲータ−を上式に代入すると、
Ｐ ｔ ＝２．５ ｋｇ／ｃｍ２
Ｈ＝ （８，２５０−７，５００） ＝０．７５ ｍ、
°、 Ｐ Ｈ＝２．５−０．０７５＝２．４ ｋｇ／ｃ
ｍ２つまり２．４ ｋｇ／ｃｍ２の排水エネルギー及び
７００ｔ／ｈの排水流量を利用することなく循環使用し
ていることになる。However, r is the weight per unit volume of liquid. Substituting the operating gator of a normal large furnace into the above equation, P t = 2.5 kg/cm2 H = (8,250-7,500) = 0.75 m ,
°, P H=2.5-0.075=2.4 kg/c
m2, that is, 2.4 kg/cm2 of waste water energy and 700 t/h of waste water flow rate are recycled without being utilized.
本考案は従来の無駄にしていた排水エネルギーを回収利
用して電力に変換することができる高炉ガス清浄用ベン
チュリースクラバ排水の排圧エネルギー回収装置を提供
するのが目的である。The purpose of the present invention is to provide an exhaust pressure energy recovery device for venturi scrubber drainage for blast furnace gas cleaning, which can recover wastewater energy that was wasted in the past and convert it into electricity.
本考案の構成を第３図に示す実施例に基き詳細に説明す
ると、排水管９の緊急遮断弁１０より上流側に排水供給
支管１８を接続し、この排水供給支管１８を発電機１９
を駆動する発電用タービン２０に連結する。The structure of the present invention will be explained in detail based on the embodiment shown in FIG.
It is connected to a power generation turbine 20 that drives the.
尚、排水供給支管１８には一定量を供給するための流量
調整弁２１と遮断弁２２を取付けている。Incidentally, the drainage supply branch pipe 18 is equipped with a flow rate adjustment valve 21 and a cutoff valve 22 for supplying a fixed amount of water.
そして、発電用タービン２０の排出側には接続管２３を
設けて排水トラフ１３と接続させている。A connecting pipe 23 is provided on the discharge side of the power generation turbine 20 to connect it to the drainage trough 13.
他は全て従来と同様なので同一符号を付し説明を省略す
る。Since everything else is the same as the conventional one, the same reference numerals are given and the explanation will be omitted.
本考案は前記のように構成したもので、排水管９を流れ
る排水流量７００ｔ／ｈの全量を発電用タービン２０に
流すのではなくオーバーフロー弁１１を従来より絞り、
流量調整弁２１により流量を制御して６５０ｔ／ｈ程度
を発電用タービン２０に供給し、残りの５０ｔ／ｈは現
状のオーバーフロー弁１１側に排水し、流量の変動によ
る電力回収量の影響を防止している。The present invention is constructed as described above, and instead of allowing the entire amount of the 700 t/h of waste water flowing through the drain pipe 9 to flow to the power generation turbine 20, the overflow valve 11 is throttled, as compared to the conventional method.
The flow rate is controlled by the flow rate adjustment valve 21 to supply approximately 650 t/h to the power generation turbine 20, and the remaining 50 t/h is drained to the current overflow valve 11 side to prevent the influence of fluctuations in the flow rate on the amount of power recovery. are doing.
したがって、一定量を発電用タービン２０に供給し、オ
ーバーフロー弁１１の開閉でミストセパレータ１内の水
位制御を行う。Therefore, a certain amount is supplied to the power generation turbine 20, and the water level in the mist separator 1 is controlled by opening and closing the overflow valve 11.
本考案は前記のような構成、作用を有するから、無駄に
流していた排圧エネルギーを利用して発電用タービン２
０を駆動して電力として回収することができる非常に有
効なものである。Since the present invention has the above-mentioned configuration and operation, the waste pressure energy that was wasted is utilized to generate electricity in the power generation turbine 2.
It is very effective because it can drive 0 and recover it as electric power.
第１図は従来のベンチュリースクラバ設備を示す正面図
、第２図は排水部分のみを示す拡大正面図、第３図は本
考案に係る高炉ガス清浄用ベンチュリースクラバ排水の
排圧エネルギー回収装置の一実施例を示す要部の正面図
を夫々示す。
尚、図中 １はミストセパレータ、９は排水管、１０は
緊急遮断弁、１３は排水トラフ、１８は排水供給支管、
２０は発電用タービン、２１は流量調整弁である。Fig. 1 is a front view showing a conventional venturi scrubber equipment, Fig. 2 is an enlarged front view showing only the drainage part, and Fig. 3 is an exhaust pressure energy recovery device for venturi scrubber waste water for blast furnace gas cleaning according to the present invention. 3A and 3B are front views of main parts showing examples, respectively. In addition, in the figure, 1 is a mist separator, 9 is a drainage pipe, 10 is an emergency shutoff valve, 13 is a drainage trough, 18 is a drainage supply branch pipe,
20 is a power generation turbine, and 21 is a flow rate regulating valve.
Claims (1)
る排水管９の緊急遮断弁１０の上流側に、発電用タービ
ン２０に排水を導く流量調整弁２１を有する排水供給支
管１８を接続し、発電用タービン２０の排出側を排水ト
ラフ１３と接続して成る高炉ガス清浄用ベンチュリース
クラバ排水の排圧エネルギー回収装置。A wastewater supply branch pipe 18 having a flow rate regulating valve 21 that guides wastewater to a power generation turbine 20 is connected to the upstream side of the emergency shutoff valve 10 of a drain pipe 9 that discharges wastewater from the mist separator 1 to a wastewater trough 13. This is an exhaust pressure energy recovery device for venturi scrubber drainage for blast furnace gas cleaning, which is constructed by connecting the discharge side of 20 with a drainage trough 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4371681U JPS5848353Y2 (en) | 1981-03-30 | 1981-03-30 | Bench lily for blast furnace gas cleaning - Exhaust pressure energy recovery device for scrubber wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4371681U JPS5848353Y2 (en) | 1981-03-30 | 1981-03-30 | Bench lily for blast furnace gas cleaning - Exhaust pressure energy recovery device for scrubber wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57158737U JPS57158737U (en) | 1982-10-05 |
| JPS5848353Y2 true JPS5848353Y2 (en) | 1983-11-04 |
Family
ID=29840686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4371681U Expired JPS5848353Y2 (en) | 1981-03-30 | 1981-03-30 | Bench lily for blast furnace gas cleaning - Exhaust pressure energy recovery device for scrubber wastewater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5848353Y2 (en) |
-
1981
- 1981-03-30 JP JP4371681U patent/JPS5848353Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57158737U (en) | 1982-10-05 |
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