JPS6397689A - Method for preventing clogging of odor pipe in by-product recovering apparatus provided in coke plant modification area - Google Patents

Method for preventing clogging of odor pipe in by-product recovering apparatus provided in coke plant modification area

Info

Publication number
JPS6397689A
JPS6397689A JP24477386A JP24477386A JPS6397689A JP S6397689 A JPS6397689 A JP S6397689A JP 24477386 A JP24477386 A JP 24477386A JP 24477386 A JP24477386 A JP 24477386A JP S6397689 A JPS6397689 A JP S6397689A
Authority
JP
Japan
Prior art keywords
gas
odor
pipe
coke
coke oven
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP24477386A
Other languages
Japanese (ja)
Other versions
JPH0762133B2 (en
Inventor
Shiyouichi Nagabuchi
永渕 正一
Terumi Tokumaru
徳丸 照美
Yoshio Saeki
佐伯 義男
Nagaharu Fujieda
藤枝 長治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kansai Coke and Chemicals Co Ltd
Original Assignee
Kansai Coke and Chemicals Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kansai Coke and Chemicals Co Ltd filed Critical Kansai Coke and Chemicals Co Ltd
Priority to JP61244773A priority Critical patent/JPH0762133B2/en
Publication of JPS6397689A publication Critical patent/JPS6397689A/en
Publication of JPH0762133B2 publication Critical patent/JPH0762133B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Coke Industry (AREA)

Abstract

PURPOSE:To simply and econmically prevent the clogging of an odor pipe, by conducting gas liq. washing of an odor pipe for sucking a combustible gas- contg. offensive odor generated in a by-product recovering apparatus provided in a coke plant and processing are into a code oven gas treating line. CONSTITUTION:A combustible gas-contg. offensive gas produced in a by-product recovering apparatus provided in a coke plant and processing area [e.g., a gas produced from a tar decanter (6)] is directly sucked through odor pipes (e.g., 31 and 31a) into a coke oven (1) gas treating line (conduit 10a). At this time, part of a gas liq. (gas liq. tank 7) recovered in the coke oven gas treating line is flowed down within the odor pipes (31 and 31a). specifically, e.g., part of the gas liq. is introduced from the gas liq. tank (7) by a pump (8) through a gas liq. conduit (23b) into a rising portion of the odor pipe (31) to wash the odor pipes (31 and 31a).

Description

【発明の詳細な説明】 [産業上の利用分野コ この発明は、コークス工場コークス炉より発生するター
ル、軽油などの副生物を補集する回収装置、すなわち、
タールデカンタ−1貯槽類、軽油回収設備、軽油タンク
またはタールタンク等で発生する可燃性ガス含有悪臭気
体(以下臭気という)を臭気配管を経てコークス炉発生
ガス導管に直接吸引すると共に該臭気の流量を一定に制
御するようにしたコークス工場化工地区の副生物回収装
置において、前記臭気配管内に、ガス液を向流で導入し
配管内の詰りを防止する方法に関するものである。
[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a collection device for collecting byproducts such as tar and light oil generated from a coke factory coke oven, that is,
Tar decanter 1: Suck the foul-smelling gas containing flammable gas (hereinafter referred to as odor) generated in storage tanks, light oil recovery equipment, light oil tanks, tar tanks, etc. directly into the coke oven gas pipe through the odor piping, and the flow rate of the odor. The present invention relates to a method for preventing clogging of the piping by introducing a gas liquid into the odor piping in a countercurrent flow in a by-product recovery device in a coke factory chemical district where the amount of water is controlled at a constant level.

[従来の技術] コークス工場において、コークス炉ガス精製時の第1工
程であるガス冷却過程で発生するコールタールを含む凝
縮液は、タールデカンタ−と呼ばれる静置槽に集められ
、ここでコールタールとガス液とに静置分離される。
[Prior Art] In a coke factory, condensate containing coal tar generated during the gas cooling process, which is the first step in refining coke oven gas, is collected in a standing tank called a tar decanter, where the coal tar is and gas liquid.

ガス液は、上澄液として流出され、大部分は再び、発生
コークス炉で発生するガス冷却に用いられ、余剰分は例
えば活性汚泥処理設備など排水処理段に送られる。一方
、コールタールは沈降液として下部からポンプで汰き出
され、タール貯槽へ送られる。
The gas liquid is discharged as a supernatant liquid, most of which is used again to cool the gas generated in the coke oven, and the surplus is sent to a wastewater treatment stage, such as an activated sludge treatment facility. Meanwhile, coal tar is pumped out from the bottom as sediment and sent to a tar storage tank.

このようなコークス炉ガスの第1冷却工程に必要なター
ルデカンタ−を含む関連設備は、ガス液の滞留により、
ガス液中に同伴したコークス炉ガス、ガス液中に溶存す
るアンモニア、硫化水素、その他の悪臭物質を含んだ臭
気を発生する。従来、この臭気対策として、悪臭気体を
吸引収集後、洗滌法、活性炭吸着法、酸化燃焼法、触媒
酸化法等による悪臭除去の採用が一般的に考慮されるが
いずれも処理水あるいは硫黄酸化物、窒素酸化物等の排
出を伴なうばかりでなく、建設費、運転費が高く、さら
に二次、三次処理まで考慮すれば、莫大な投資が必要と
なる。
The related equipment including the tar decanter necessary for the first cooling process of coke oven gas, due to the retention of gas liquid,
It generates an odor containing coke oven gas entrained in the gas liquid, ammonia dissolved in the gas liquid, hydrogen sulfide, and other malodorous substances. Conventionally, as a countermeasure against this odor, it has been generally considered to remove the odor using a washing method, activated carbon adsorption method, oxidative combustion method, catalytic oxidation method, etc. after collecting the malodorous gas by suction. Not only does this involve the emission of nitrogen oxides, etc., but the construction and operating costs are high, and if secondary and tertiary treatment are also taken into account, a huge amount of investment is required.

このような不都合を解消する方法として、悪臭気体をコ
ークス炉ガス処理系列におけるコークス炉発生ガス導管
に接続した配管(以下臭気配管という)を介して、該系
列内に直接吸引させて、コークス炉ガス中に混入させる
方法や装置が提案されている。(特公昭54−2120
1.実公昭60−14747>。
As a method to eliminate such inconveniences, foul-smelling gases are directly sucked into the coke oven gas treatment line through piping (hereinafter referred to as odor piping) connected to the coke oven generated gas pipe, and the coke oven gas is removed. Methods and devices have been proposed to mix it into the liquid. (Tokuko Sho 54-2120
1. Jitsukō 60-14747>.

これらの方法や、装置を用いることにより、極めて経済
的にコークス工場化工地区で発生する臭気の系外への漏
洩を防止することができ、作業環境の改善をはかること
が可能でおるが、この臭気中には、ベンゼン、トルエン
、キシレン、ナフタリン等の芳香族物質、更には、粘度
の高いタールミスト等(以下ミスト類という)が多量に
含まれていることから、吸引途中の臭気配管内壁にこれ
らが凝着し、実質的に臭気配管内径を小さくさせ、甚し
い場合は閉塞に到らしめ、臭気の吸引を不可能にしてし
まう事態がおこる。
By using these methods and devices, it is possible to extremely economically prevent the leakage of odors generated in coke factory chemical processing areas outside the system, and it is possible to improve the working environment. Odors contain large amounts of aromatic substances such as benzene, toluene, xylene, and naphthalene, as well as highly viscous tar mist (hereinafter referred to as mist), so they may be absorbed into the inner wall of the odor pipe during suction. These adhere to each other, substantially reducing the inner diameter of the odor pipe, and in severe cases, leading to blockage, making it impossible to suck in the odor.

そこで、このような事態を回避するため、例えば、臭気
配管を蒸気保温して、ミスト類の凝着を防止する方法な
どの措置がとられてきたが、それでもなお閉塞を起こす
場合は、臭気の吸引を中断し、配管内に生蒸気を吹込ん
で閉塞物を除去する方法なども行われてきた。しかしな
がら、前者の場合は、まず設備費がかかることや、常時
蒸気を通さなければならないといったことから経済的に
不利である。蛋者の方法にしても、高1iIjな蒸気を
用いること、時間と手間を要するという点からこれまた
満足できる方法とはいえない。その上、蒸気を通した場
合、熱分解した配管内の付着物が蒸気熱により一種の乾
留状態に曝されて、配管内壁に固着し、それが容易に除
去されなくなるという事態か発生する。
Therefore, in order to avoid such a situation, measures have been taken, such as keeping the odor piping warm with steam to prevent mist from adhering, but if blockage still occurs, Other methods have been used, such as interrupting suction and blowing live steam into the pipe to remove the blockage. However, the former case is economically disadvantageous because it requires equipment costs and requires constant passage of steam. Even the method of the expert cannot be said to be a satisfactory method because it uses high 1iIj steam and requires time and effort. Moreover, when steam is passed through, the thermally decomposed deposits in the piping are exposed to a kind of carbonization state due to the heat of the steam, and adhere to the inner wall of the piping, making it difficult to remove them easily.

[問題点を解決するための手段] 本発明は従来法における前記のような不都合を解消せん
がために種々検討の結果、コークス工場化工地区のガス
処理系列内には適当温度のガス液と称せられる液体が多
口に回収されるので、それを臭気配管中に供給すれば、
該ガス液の保有熱および液体としての流動性により、臭
気配管内壁が洗われて、常時清浄に保たれ、ミスト類の
凝着を招くことはないとの知見を得、これに基いて達成
されたものである。すなわち、本発明の要旨とするとこ
ろは、コークス工場化工地区に設置された副生物回収装
置で発生する可燃性ガス含有悪臭着気体(臭気)を、臭
気配管を経て、コークス炉ガス処理系列内に直接吸引処
理するに当り、臭気配管内に、コークス炉ガス処理系列
内で回収されるガス液の一部を流下させることを特徴と
するコークス工場化工地区の副生物回収装置における臭
気配管の詰り防止方法に存する。
[Means for Solving the Problems] As a result of various studies in order to solve the above-mentioned inconveniences in the conventional method, the present invention has developed a system that uses a gas liquid at an appropriate temperature in the gas treatment line of a coke factory chemical area. Since the liquid is collected in large quantities, if it is supplied into the odor piping,
This was achieved based on the knowledge that the internal walls of the odor piping are washed and kept clean by the heat retained by the gas liquid and its fluidity as a liquid, and does not cause the adhesion of mist. It is something that In other words, the gist of the present invention is to collect malodorous gas (odor) containing flammable gas generated in a by-product recovery device installed in a coke factory chemical area through odor piping and into a coke oven gas treatment line. Prevention of clogging of odor piping in a byproduct recovery device in a coke factory chemical district, which is characterized by flowing down a part of the gas liquid recovered in a coke oven gas treatment line into the odor piping during direct suction treatment. It lies in the method.

[作用] 臭気配管内に、適温を保有するガス液が供給され、該ガ
ス液が臭気配管内壁を濡らしながら流下するので配管内
壁でのミスト類の凝着が未然に防止される。
[Operation] A gas liquid having an appropriate temperature is supplied into the odor pipe, and the gas liquid flows down while wetting the inner wall of the odor pipe, thereby preventing mist from adhering to the inner wall of the pipe.

[実施例] 以下、図面に基き、回収槽の1つであるダールデカンタ
ーからの発生臭気を吸引する臭気配管を例にとって本発
明を説明する。
[Example] Hereinafter, the present invention will be described based on the drawings, taking as an example an odor pipe that sucks odor generated from a Dahl decanter, which is one of the recovery tanks.

第1図はタールデカンタ−からの臭気吸引フローを示す
系統図、第2図は第1図の一部を拡大して示す詳細図で
ある。まず、第1図に基き、臭気吸引フローについて説
明する。
FIG. 1 is a system diagram showing the flow of odor suction from a tar decanter, and FIG. 2 is a detailed diagram showing a part of FIG. 1 enlarged. First, the odor suction flow will be explained based on FIG.

コークス炉発生ガスの処理系としては、コークス炉1、
上昇管2、ガス冷却塔3、ガス排送機4、およびガス精
製設備9と、それらを結ぶガス導管10a、10b、1
0cおよび10dよりなる。
The coke oven gas treatment system includes a coke oven 1,
Rising pipe 2, gas cooling tower 3, gas exhaust machine 4, and gas purification equipment 9, and gas conduits 10a, 10b, 1 connecting them
Consists of 0c and 10d.

一方、凝縮液ライン系は、凝縮槽5.タールデカンタ−
6、ガス液タンク7、ポンプ8およびそれらを結ぶガス
液導管21.22a、22b、23a、23b、24と
、さらに立上り部と水平部からなる臭気配管31.立上
り部のみからなる臭気配管31a、32および洗滌ガス
液流下管31bから溝成される。
On the other hand, the condensate line system includes the condensate tank 5. tar decanter
6, gas liquid tank 7, pump 8, gas liquid conduits 21.22a, 22b, 23a, 23b, 24 connecting them, and odor piping 31.6 consisting of a rising part and a horizontal part. A groove is formed from odor pipes 31a and 32 consisting of only rising portions and a cleaning gas liquid flow down pipe 31b.

コークス炉1から発生したコークス炉ガスは、上昇管2
を通るが、ここでポンプ8によりガス液導管23a、2
3bを経て送られてきたガス液と接触し、降温しでコー
クス炉発生導管10a内をガス液と同伴して流れ、ガス
冷却器3に入り、ここで、さらに冷却されて、ガス排送
機4より復炭のガス精製設備9へ圧送される。ガス液は
、別名安水と通称される循環冷却水であって、前記上昇
管2内に高圧噴霧されるもので、発生時800〜100
0’Cであったコークス炉ガスはこのガス液と接触して
100℃以下にまで、冷却される。一方、コークス炉ガ
スと共にガス導管10aを流れるガス液は、ガス冷却塔
3に到る前に、同導管1Qaから恢き出され、ガス液導
管21を経て、タールデカンタ−6に入り、一方、ガス
冷却塔3から排出されるガス液はガス液導管22a、凝
縮(a5、およびガス液導管22b@−経て、タールデ
カンタ−6に流れる。該タールデカンタ−6は破損防止
のための安全口(大気開放部)以外は密封され実質的に
は大気と遮断されている。
The coke oven gas generated from the coke oven 1 is transferred to the riser pipe 2
Here, the pump 8 connects the gas liquid conduits 23a, 2
It comes in contact with the gas liquid sent through 3b, cools down, flows along with the gas liquid in the coke oven generation conduit 10a, enters the gas cooler 3, where it is further cooled, and then passes through the gas discharge machine. 4, the gas is sent under pressure to a recoal gas purification facility 9. The gas liquid is circulating cooling water, also known as ammonium water, which is sprayed at high pressure into the riser pipe 2.
The coke oven gas, which was at 0'C, comes into contact with this gas liquid and is cooled to below 100C. On the other hand, the gas liquid flowing through the gas conduit 10a together with the coke oven gas is pumped out from the conduit 1Qa before reaching the gas cooling tower 3, passes through the gas liquid conduit 21, enters the tar decanter 6, and, on the other hand, The gas liquid discharged from the gas cooling tower 3 flows through the gas liquid conduit 22a, condensation (a5), and gas liquid conduit 22b@- to the tar decanter 6.The tar decanter 6 has a safety port (2) to prevent damage. The parts other than those (open to the atmosphere) are sealed and are virtually cut off from the atmosphere.

タールデカンタ−6に入ったガス液は、静置され、ガス
液中に混在するタール分を分離しながら、オバーフロー
し、ガス液導管23aを経て、ガス液タンク7に入り、
ポンプ8により、再び上昇管2に送られ、発生ガスの冷
却に用いられる。余剰ガス液は、ガス液導管23bから
分岐したガス液導管24を経て、排水処理設備へ送られ
る。
The gas liquid that has entered the tar decanter 6 is allowed to stand still, and while separating the tar mixed in the gas liquid, it overflows and enters the gas liquid tank 7 through the gas liquid conduit 23a.
The pump 8 sends the gas to the riser pipe 2 again, where it is used to cool the generated gas. The surplus gas liquid is sent to the wastewater treatment facility via the gas liquid conduit 24 branched from the gas liquid conduit 23b.

本発明の適用される副生物回収装置、例えばタールデカ
ンタ−から発生する大量の臭気は集気配管経由でガス導
管10aへ吸引されるが、その際臭気の吸引流量調節の
目的で、第2図に示すような制wJ装置が付設される。
A large amount of odor generated from a by-product recovery device to which the present invention is applied, such as a tar decanter, is sucked into the gas conduit 10a via the air collection pipe. A control wJ device as shown in is attached.

すなわち、タールデカンタ−6に捕集されたガス液の表
面と、タールデカンタ−6の上蓋との間の臭気発生空間
と、ガス導管10aとを臭気配管31a、およびこれを
連通する臭気配管31■で接続させる。そしてコークス
炉発生ガスのガス導管10aにおけるガス排風機4によ
る負圧を利用して、タールデカンタ−〇内の臭気をガス
導管10aに吸引させるに当たって、臭気配管31a途
中に配置されている流m検出器100.調節弁101.
圧力計102.流量コントローラー103等により、臭
気吸引流量が制御される。
That is, the odor generating space between the surface of the gas liquid collected in the tar decanter 6 and the upper lid of the tar decanter 6 and the gas conduit 10a are connected to the odor piping 31a, and the odor piping 31■ which communicates the gas conduit 10a. Connect with . Then, when the odor inside the tar decanter is sucked into the gas pipe 10a by using the negative pressure generated by the gas exhaust fan 4 in the gas pipe 10a of the coke oven generated gas, the flow m is detected which is placed in the middle of the odor pipe 31a. Vessel 100. Control valve 101.
Pressure gauge 102. The odor suction flow rate is controlled by the flow rate controller 103 and the like.

尚、集気配管31の立上り部先端とガス導管10aとの
接続は、図示するように、ガス導管10a中を流れる一
発生コークス炉ガスを冷却したガス液が、集気配管31
内に直接流下することのないよう集気配管31の立上り
部先端はガス導管10aの上面に切込まれている。
Note that the connection between the rising end of the air collecting pipe 31 and the gas pipe 10a is such that the gas liquid that has cooled the generated coke oven gas flowing through the gas pipe 10a is connected to the air collecting pipe 31 as shown in the figure.
The tip of the rising part of the air collection pipe 31 is cut into the upper surface of the gas conduit 10a to prevent the gas from flowing directly into the gas pipe 10a.

また、集気配管31aの立上り部先端と集気配管31の
水平部との接続は同じ(図示するように、後記の集気配
管31内を流れるミスト類を洗該したガス液が集気配管
31a内に直接流下することがないように、集気配管3
1aの立上り部先端は集気配管31の水平部の上面に切
込まれている。
In addition, the connection between the tip of the rising part of the air collection pipe 31a and the horizontal part of the air collection pipe 31 is the same (as shown in the figure, the gas liquid that has washed the mist flowing inside the air collection pipe 31, which will be described later) is connected to the air collection pipe 31. In order to prevent the air from flowing directly into the air collection pipe 3
The tip of the rising portion 1a is cut into the upper surface of the horizontal portion of the air collection pipe 31.

本発明は、以上のような設備配置によりガス液の一部を
集気配管31に導入流下させ、配管内に濡れ壁を形成さ
せて、内壁を清浄にし、ミスト類の凝着を防止して、配
管内の閉塞を防止するようにしたことを特徴とするもの
である。
The present invention uses the equipment arrangement described above to introduce a part of the gas liquid into the air collection pipe 31 and flow it down, forming a wet wall in the pipe, cleaning the inner wall, and preventing the adhesion of mist. , which is characterized in that it prevents clogging in the piping.

すなわち、本発明を第1図乃至第2図を参照しつつこれ
を説明すると、タールデカンタ−6で、タール分と分離
され、ガス液タンクに貯蔵されたガス液を、ガス液導管
23bを経て上昇管2に、発生したコークスガス冷却用
として循環させると共に、集気配管31の立上り部にも
導入する。そして、前者では発生したコークスガスは冷
却降温されて、ガス液はガス導管10aを経てガス冷却
塔3に達し、後者では、集気配管31の内壁にnlって
流下し、集気ガスに同伴して集気配管31内に凝着しよ
うとするミスト類を洗い去り、該ミスト類を伴って集気
配管31の水平部を流れて、洗滌ガス液流下管31bを
経て、タールデカンタ−6内に捕集ごれる。
That is, to explain the present invention with reference to FIGS. 1 and 2, a gas liquid separated from tar in a tar decanter 6 and stored in a gas liquid tank is passed through a gas liquid conduit 23b. The generated coke gas is circulated through the riser pipe 2 for cooling, and is also introduced into the rising part of the air collection pipe 31. In the former, the generated coke gas is cooled and the temperature is lowered, and the gas liquid reaches the gas cooling tower 3 via the gas conduit 10a, and in the latter, it flows down onto the inner wall of the air collection pipe 31 and is entrained in the air collection gas. The mist that tends to adhere to the inside of the air collection pipe 31 is washed away, and the mist flows along the horizontal part of the air collection pipe 31, passes through the cleaning gas liquid down pipe 31b, and enters the tar decanter 6. It will be collected and collected.

か(して、タールデカンタ−6から臭気配管31を臭気
と共に上昇し管内に凝着しようとするミスト類は常に洗
い落されて、護管の内壁に付着することがなく、引いて
は臭気配管31の詰りを防止できるものである。
(As a result, the mist that rises from the tar decanter 6 along with the odor pipe 31 and tries to adhere to the inside of the pipe is constantly washed away and does not adhere to the inner wall of the protection pipe, and in turn the odor pipe 31 can be prevented from clogging.

[発明の効果] 本発明は、以上のべたような構成よりなるので、従来の
ように、臭気配管の詰りを防止するために、蒸気保温設
備を施したり、生蒸気を吹込んだり必要がなく、手間と
設備費を大巾に軽減できる。しかも、配管の詰りによる
臭気洩れの恐れも解消できるものであり、産業上の利用
価値は極めて大きい。
[Effects of the Invention] Since the present invention has the above-described configuration, there is no need to provide steam insulation equipment or blow live steam into the odor piping in order to prevent clogging, as in the past. , labor and equipment costs can be greatly reduced. Moreover, it can eliminate the fear of odor leakage due to clogging of pipes, and has extremely high industrial value.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はタールデカンタ−から発生する臭気吸引フロー
を示す系統図、第2図は第1図の一部を拡大して示す詳
細図である。 1・・・コークス炉    2・・・上昇管3・・・ガ
ス冷却塔    4・・・ガス排送機5・・・凝縮槽 
     6・・・タールデカンタ−7・・・ガス液タ
ンク   8・・・ポンプ9・・・ガス精製設備 10a、10b、10c、10d−・・ガス導管21.
22a、22b、23a、23b、24・・・ガス液導
FIG. 1 is a system diagram showing the flow of odor suction generated from a tar decanter, and FIG. 2 is a detailed diagram showing a part of FIG. 1 enlarged. 1... Coke oven 2... Riser pipe 3... Gas cooling tower 4... Gas discharge machine 5... Condensing tank
6... Tar decanter 7... Gas liquid tank 8... Pump 9... Gas purification equipment 10a, 10b, 10c, 10d-... Gas conduit 21.
22a, 22b, 23a, 23b, 24... gas liquid conduit

Claims (2)

【特許請求の範囲】[Claims] (1)コークス工場化工地区に設置された副生物回収装
置で発生する可燃性ガス含有悪臭気体を、臭気配管を経
て、コークス炉ガス処理系列内に直接吸引処理するに当
り、臭気配管内に、コークス炉ガス処理系列内で回収さ
れるガス液の一部を流下させることを特徴とするコーク
ス工場化工地区の副生物回収装置における臭気配管の詰
り防止方法。
(1) When flammable gas-containing foul-smelling gas generated by the by-product recovery equipment installed in the coke factory chemical area is directly sucked into the coke oven gas treatment line through the odor piping, A method for preventing clogging of odor piping in a by-product recovery device in a coke factory chemical district, characterized by flowing down a part of a gas liquid recovered in a coke oven gas treatment line.
(2)副生物回収装置がタールデカンターである特許請
求の範囲第1項記載のコークス工場化工地区の副生物回
収装置における臭気配管の詰り防止方法。
(2) A method for preventing clogging of odor piping in a byproduct recovery device in a coke factory chemical district as set forth in claim 1, wherein the byproduct recovery device is a tar decanter.
JP61244773A 1986-10-15 1986-10-15 Method for preventing clogging of odor piping in by-product recovery equipment in coke factory chemical engineering area Expired - Fee Related JPH0762133B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61244773A JPH0762133B2 (en) 1986-10-15 1986-10-15 Method for preventing clogging of odor piping in by-product recovery equipment in coke factory chemical engineering area

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61244773A JPH0762133B2 (en) 1986-10-15 1986-10-15 Method for preventing clogging of odor piping in by-product recovery equipment in coke factory chemical engineering area

Publications (2)

Publication Number Publication Date
JPS6397689A true JPS6397689A (en) 1988-04-28
JPH0762133B2 JPH0762133B2 (en) 1995-07-05

Family

ID=17123698

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61244773A Expired - Fee Related JPH0762133B2 (en) 1986-10-15 1986-10-15 Method for preventing clogging of odor piping in by-product recovery equipment in coke factory chemical engineering area

Country Status (1)

Country Link
JP (1) JPH0762133B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH059476A (en) * 1991-06-28 1993-01-19 Nippon Steel Corp Method for preventing blockage in oven gas duct of continuous coke production equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4823474U (en) * 1971-07-26 1973-03-17
JPS4915601A (en) * 1972-03-31 1974-02-12
JPS5151965U (en) * 1974-10-15 1976-04-20
JPS5238155U (en) * 1975-09-10 1977-03-17
JPS56143239U (en) * 1980-03-27 1981-10-29

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4823474U (en) * 1971-07-26 1973-03-17
JPS4915601A (en) * 1972-03-31 1974-02-12
JPS5151965U (en) * 1974-10-15 1976-04-20
JPS5238155U (en) * 1975-09-10 1977-03-17
JPS56143239U (en) * 1980-03-27 1981-10-29

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH059476A (en) * 1991-06-28 1993-01-19 Nippon Steel Corp Method for preventing blockage in oven gas duct of continuous coke production equipment

Also Published As

Publication number Publication date
JPH0762133B2 (en) 1995-07-05

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