JP2607810B2 - Cooling method of coke oven gas - Google Patents
Cooling method of coke oven gasInfo
- Publication number
- JP2607810B2 JP2607810B2 JP22716392A JP22716392A JP2607810B2 JP 2607810 B2 JP2607810 B2 JP 2607810B2 JP 22716392 A JP22716392 A JP 22716392A JP 22716392 A JP22716392 A JP 22716392A JP 2607810 B2 JP2607810 B2 JP 2607810B2
- Authority
- JP
- Japan
- Prior art keywords
- coke oven
- cooling
- gas
- cooler
- oven gas
- 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 - Fee Related
Links
Landscapes
- Industrial Gases (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はコークス炉のドライ・メ
ーンを出たコークス炉ガスの冷却方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cooling coke oven gas leaving a dry main of a coke oven.
【０００２】[0002]
【従来の技術】従来、排ガスの冷却や吸収等において比
較的クリーンなガスを取扱う冷却塔や吸収塔等には塔内
での閉塞の心配がないために効率が良い充填塔方式が用
いられている。2. Description of the Related Art Conventionally, a cooling tower or an absorption tower, which handles relatively clean gas in cooling or absorbing exhaust gas, has a high efficiency of a packed tower system because there is no fear of clogging in the tower. I have.
【０００３】しかし、ダーティなガスの場合には充填物
にスラッジや結晶物の付着によるトラブルがあるために
空塔式が採用されている。[0003] However, in the case of a dirty gas, there is a trouble due to adhesion of sludge and crystals to the packing, so that an empty tower type is adopted.
【０００４】一方、コークス炉のドライ・メーンを出た
コークス炉ガス中（８０〜８５℃）にはナフタリンが含
まれておりガスクーラーによるガスの冷却によりナフタ
リンが析出しガスクーラーの塔内を閉塞させる。On the other hand, in the coke oven gas (80 to 85 ° C.) that has exited the dry main of the coke oven, naphthalene is contained, and the gas cooler cools the gas to deposit naphthalene and block the gas cooler tower. Let it.
【０００５】このため従来はコークス炉ガスを冷却する
方法としては図５に示す様に空塔式のプライマリー・ガ
ス・クーラーに例えばコークス炉ガス中の水分の凝縮水
を冷却媒体としてスプレー・ノズルによりスプレーし冷
却する方法が用いられていた。For this reason, conventionally, as a method of cooling coke oven gas, as shown in FIG. 5, an air-cooled primary gas cooler is provided by, for example, a spray nozzle using water condensed water in the coke oven gas as a cooling medium. A method of spraying and cooling was used.
【０００６】[0006]
【発明が解決しようとする課題】前記に述べた従来の空
塔式プライマリー・ガス・クーラーではコークス炉ガス
と冷却媒体との接触効率が悪いため冷却効率が低い。こ
の結果、塔の高さは高くなり冷却媒体量も多く必要とな
る。冷却媒体量が多くなれば循環水クーラーの入出口の
温度差が小さくなり循環水クーラーの伝熱面積が多く必
要となる。建設費及びエネルギーコストが高くなる。In the above-mentioned conventional air-tower type primary gas cooler, the cooling efficiency is low because the contact efficiency between the coke oven gas and the cooling medium is poor. As a result, the height of the tower is increased and a large amount of cooling medium is required. As the amount of the cooling medium increases, the temperature difference between the inlet and the outlet of the circulating water cooler decreases, and a large heat transfer area of the circulating water cooler is required. Construction costs and energy costs increase.
【０００７】本発明はこれらを解決するシステムを提供
するものである。The present invention provides a system for solving these problems.
【０００８】[0008]
【課題を解決するための手段】前記の課題を解決するた
めにコークス炉のドライ・メーンを出たコークス炉ガス
を冷却する直接式プライマリー・ガス・クーラーにおい
て、前記ガスクーラの塔の中へ充填物を充填し、かつ、
前記ガスクーラーへコールタールを１〜６％添加した冷
却用凝縮水を循環させることを特徴とするコークス炉ガ
スの冷却方法にある。A direct primary gas cooler for cooling coke oven gas exiting the dry main of a coke oven in order to solve the above-mentioned problems. And
A method for cooling coke oven gas, characterized by circulating condensed water for cooling in which 1 to 6% of coal tar is added to the gas cooler.
【０００９】[0009]
【作用】空塔式プライマリー・ガス・クーラーの冷却媒
体にタールを添加し、更に、塔内に充填物を充填するこ
とにより、塔内の閉塞もなく、かつ塔の高さを低くし、
循環水クーラーの伝熱面積も少なく、循環水ポンプの電
気消費量も少なく出来る。[Function] By adding tar to the cooling medium of the empty tower primary gas cooler and further filling the inside of the tower, there is no blockage in the tower and the height of the tower is reduced,
The heat transfer area of the circulating water cooler is small, and the electricity consumption of the circulating water pump can be reduced.
【００１０】[0010]
【実施例】本発明を実機のコークス炉のドライ・メーン
を出たコークス炉ガスを冷却するプライマリー・ガス・
クーラーにおいて適用した。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a primary gas cooling system for cooling coke oven gas exiting the dry main of a real coke oven.
Applied in cooler.
【００１１】図１に本発明を実施した設備フローを示
す。コークス炉１を出たコークス炉ガスはドライ・メー
ン２で循環凝縮水で８０〜８５℃に冷却され、間接式プ
ライマリー・ガス・クーラー８に入りコークス炉ガス中
のナフタリンが析出しない温度の約５０℃まで冷却後、
直接式プライマリー・ガス・クーラー４に入り、塔の上
部から循環冷却水６をスプレーしコークス炉ガスを３０
〜３５℃まで冷却する。塔内にはコークス炉ガスの冷却
を効果的に行なわせるために充填物を充填した。循環冷
却水６にはコークス炉ガス中のナフタリンを吸収させる
ことで充填物層内のナフタリンによる閉塞を防止するた
めにタール７を添加する。コークス炉ガス中に含まれて
いるナフタリンはスプレーされる循環冷却水６中のコー
ルタールによって吸収溶解され凝縮水と共に安水デカン
ター３に抜出される。FIG. 1 shows an equipment flow for implementing the present invention. The coke oven gas exiting the coke oven 1 is cooled to 80 to 85 ° C. by circulating condensed water in the dry main 2 and enters the indirect primary gas cooler 8 at a temperature of about 50 ° C., at which naphthalene in the coke oven gas does not precipitate. After cooling to ℃
Enter the direct primary gas cooler 4 and spray the circulating cooling water 6 from the top of the tower to discharge coke oven gas 30 times.
Cool to ~ 35 ° C. The column was filled with packing to effectively cool the coke oven gas. Tar 7 is added to the circulating cooling water 6 in order to absorb naphthalene in the coke oven gas to prevent clogging of the packed bed with naphthalene. The naphthalene contained in the coke oven gas is absorbed and dissolved by the coal tar in the circulating cooling water 6 to be sprayed, and is discharged together with the condensed water to the decanter 3.
【００１２】本発明を実施した結果、従来の様な充填物
への閉塞もなく、冷却効果が良くなった結果、図３及び
表１に示す様に塔の高さを示す総括移動高さ（ＨＯＧ）
は従来より低くなり、冷却水スプレー量も少なく出来る
ことにより、循環水クーラーの面積も小さく出来て、電
力消費量も少なくなり、建設費を大幅に節減出来た。As a result of carrying out the present invention, there is no clogging of the packing as in the prior art, and the cooling effect is improved. As a result, as shown in FIG. HOG)
As the cooling water spray amount can be reduced, the area of the circulating water cooler can be reduced, the power consumption can be reduced, and the construction cost can be greatly reduced.
【００１３】[0013]
【表１】 [Table 1]
【００１４】更に本願のプライマリー・ガス・クーラー
へ循環させる循環冷却水へのコールタールの添加量は、
１〜６％が望ましい。Further, the amount of coal tar added to the circulating cooling water circulated to the primary gas cooler of the present invention is as follows:
1-6% is desirable.
【００１５】これは、図４に示すように１％以下だとタ
ールの添加効果が低くナフタリンが洗浄されずそのため
長期運転により充填層の圧損が上昇する。又６％以上に
なるとタールの効果がなく逆に充填物へのコールタール
の付着が発生し圧損が上昇する。As shown in FIG. 4, if the content is less than 1%, the effect of adding tar is low, and naphthalene is not washed, so that the pressure loss of the packed bed increases due to long-term operation. On the other hand, when the content is 6% or more, there is no effect of tar, and conversely, coal tar adheres to the packing and the pressure loss increases.
【００１６】また、直接式プライマリークーラー出口で
のコールタール中のナフタリン濃度は１３％であり、タ
ールへのナフタリン溶解度２５％に対し、ナフタリン吸
収に充分余裕があると言える。Further, the naphthalene concentration in the coal tar at the outlet of the direct primary cooler is 13%, and it can be said that there is sufficient room for naphthalene absorption with respect to the solubility of naphthalene in tar of 25%.
【００１７】図２は本発明の別の実施例で、間接式プラ
イマリークーラーを使用せずにドライ・メーンからのコ
ークス炉ガスを直接式プライマリー・ガス・クーラーで
冷却した場合を示す。FIG. 2 shows another embodiment of the present invention in which coke oven gas from a dry main is cooled by a direct primary gas cooler without using an indirect primary cooler.
【００１８】図５は従来の空塔式直接式プライマリーク
ーラーのフロー図を示す。FIG. 5 is a flow chart of a conventional empty tower type direct primary cooler.
【００１９】[0019]
【発明の効果】本発明によって以下の効果を奏する。直
接式プライマリー・ガス・クーラーに充填物を充填し、
更に、冷却水にタールを添加する方法を組合せることに
よって、 直接式プライマリー・ガス・クーラーの高さを低く出
来る。 循環水クーラーの伝熱面積を少なく出来る。 循環水ポンプの電力消費量を節約出来る。According to the present invention, the following effects can be obtained. Fill the direct primary gas cooler with filling,
Furthermore, by combining the method of adding tar to the cooling water, the height of the direct primary gas cooler can be reduced. The heat transfer area of the circulating water cooler can be reduced. The power consumption of the circulating water pump can be reduced.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明を直接式プライマリー・ガス・クーラー
の冷却法に適用したシステムの説明図。FIG. 1 is an explanatory diagram of a system in which the present invention is applied to a cooling method of a direct type primary gas cooler.
【図２】本発明をコークス炉出のドライ・メーンからコ
ークス炉ガスを直接式プライマリー・ガス・クーラーに
入れた場合のシステム図。FIG. 2 is a system diagram in a case where coke oven gas is directly supplied to a primary gas cooler from a dry main line from a coke oven according to the present invention.
【図３】総括移動高さＨＯＧの比較を示す図。FIG. 3 is a diagram showing a comparison of overall movement heights HOG.
【図４】コールタール添加による効果を示す図。FIG. 4 is a view showing the effect of coal tar addition.
【図５】従来法の説明図。FIG. 5 is an explanatory view of a conventional method.
１…コークス炉 ２…ドライ・メー
ン ３…安水デカンター ４…直接式プライマリー・ガス・クーラー ５…循環水クーラー ６…循環水 ７…コールタール ８…間接式プライマリー・ガス・クーラーDESCRIPTION OF SYMBOLS 1 ... Coke oven 2 ... Dry main 3 ... Anti-water decanter 4 ... Direct primary gas cooler 5 ... Circulating water cooler 6 ... Circulating water 7 ... Coal tar 8 ... Indirect primary gas cooler
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山田健一 北九州市戸畑区大字中原46番地の59 日 鐵プラント設計株式会社内 (72)発明者 溝尻忠秋 北九州市戸畑区大字中原46番地の59 日 鐵プラント設計株式会社内 (72)発明者 山口彰一 東海市東海町５−３ 新日本製鐵株式会 社名古屋製鐵所内 (72)発明者 斉藤伸幸 東海市東海町５−３ 新日本製鐵株式会 社名古屋製鐵所内 (72)発明者 中村 栄 東海市東海町５−３ 新日本製鐵株式会 社名古屋製鐵所内 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kenichi Yamada, 59-46, Nakahara, Ogata 46, Tobata-ku, Kitakyushu City Inside (72) Inventor Tadaaki Mizojiri 59, 46-46 Nakahara, Oaza, Tobata-ku, Kitakyushu Plant Design Co., Ltd. (72) Inventor Shoichi Yamaguchi 5-3 Tokaicho, Tokai City Nippon Steel Corporation Nagoya Works (72) Inventor Nobuyuki Saito 5-3 Tokaicho, Tokai City Nippon Steel Corporation (72) Inventor Sakae Nakamura 5-3 Tokaicho, Tokai-shi Nagoya Works, Nippon Steel Corporation
Claims (1)
クス炉ガスを冷却する直接式プライマリー・ガス・クー
ラーにおいて、前記ガスクーラの塔の中へ充填物を充填
し、かつ、前記ガスクーラーへコールタールを１〜６％
添加した冷却用凝縮水を循環させることを特徴とするコ
ークス炉ガスの冷却方法。Claims: 1. A direct primary gas cooler for cooling coke oven gas exiting a dry main of a coke oven, wherein a charge is charged into a tower of the gas cooler and a coal tar is supplied to the gas cooler. 1-6%
A method for cooling coke oven gas, comprising circulating added condensed cooling water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22716392A JP2607810B2 (en) | 1992-08-26 | 1992-08-26 | Cooling method of coke oven gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22716392A JP2607810B2 (en) | 1992-08-26 | 1992-08-26 | Cooling method of coke oven gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0673386A JPH0673386A (en) | 1994-03-15 |
| JP2607810B2 true JP2607810B2 (en) | 1997-05-07 |
Family
ID=16856483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22716392A Expired - Fee Related JP2607810B2 (en) | 1992-08-26 | 1992-08-26 | Cooling method of coke oven gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2607810B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100635288B1 (en) | 2005-07-29 | 2006-10-17 | 주식회사 포스코 | Apparatus and method for cooling coke oven gas |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6089843A (en) * | 1997-10-03 | 2000-07-18 | Sumitomo Electric Industries, Ltd. | Sliding member and oil pump |
| KR100415634B1 (en) * | 1999-12-23 | 2004-01-31 | 재단법인 포항산업과학연구원 | A cooling method of coke oven gas |
| KR100508999B1 (en) * | 2000-12-02 | 2005-08-18 | 주식회사 포스코 | Apparatus for segregating and resolving naphthalene in tar exhaust line |
| KR100514814B1 (en) * | 2000-12-23 | 2005-09-14 | 주식회사 포스코 | Method For Removing Naphthalene In Coke Gas |
| KR100852347B1 (en) * | 2002-09-12 | 2008-08-14 | 주식회사 포스코 | Apparatus for draining crude coal tar |
| JP5175429B2 (en) * | 2005-06-28 | 2013-04-03 | 新日鉄住金エンジニアリング株式会社 | Coke oven gas cooling apparatus and method |
| JP6234328B2 (en) * | 2014-06-05 | 2017-11-22 | 新日鉄住金エンジニアリング株式会社 | Desulfurization equipment |
-
1992
- 1992-08-26 JP JP22716392A patent/JP2607810B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100635288B1 (en) | 2005-07-29 | 2006-10-17 | 주식회사 포스코 | Apparatus and method for cooling coke oven gas |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0673386A (en) | 1994-03-15 |
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