JPH0244353B2 - SEKINETSUKOOKUSUKANSHIKISHOKASETSUBINOKANENSEIGASUNOSHORIHOHO - Google Patents
SEKINETSUKOOKUSUKANSHIKISHOKASETSUBINOKANENSEIGASUNOSHORIHOHOInfo
- Publication number
- JPH0244353B2 JPH0244353B2 JP58168285A JP16828583A JPH0244353B2 JP H0244353 B2 JPH0244353 B2 JP H0244353B2 JP 58168285 A JP58168285 A JP 58168285A JP 16828583 A JP16828583 A JP 16828583A JP H0244353 B2 JPH0244353 B2 JP H0244353B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- hopper
- coke
- cooling
- inert 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 - Lifetime
Links
- 239000007789 gas Substances 0.000 claims description 51
- 239000000571 coke Substances 0.000 claims description 44
- 238000001816 cooling Methods 0.000 claims description 35
- 239000011261 inert gas Substances 0.000 claims description 31
- 230000003197 catalytic effect Effects 0.000 claims description 16
- 238000003672 processing method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Coke Industry (AREA)
Description
【発明の詳細な説明】
本発明は赤熱コークス乾式消火設備のコークス
装入用ホツパに生成する可燃性ガスの処理方法に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for treating flammable gas generated in a coke charging hopper of a red-hot coke dry extinguishing equipment.
従来の赤熱コークス乾式消火設備の概要を第１
図により説明すると、１がコークス、２がコーク
ス装入用ホツパ、３が同ホツパ２の蓋、４が火格
子、５，５′，５″が循環する冷却用不活性ガスの
進む方向、６，６′，６″が冷却室、７，７′，
７″が冷却用不活性ガスの循環ブロア、８がサイ
クロン、９が空気供給管、１０が触媒反応器、１
１がボイラ、１２が過剰の冷却用不活性ガス放出
管、２０が冷却用不活性ガス供給管、２１が可燃
性ガス排出管で、通常運転時には、消火しようと
するコークス１をホツパ２へ断続的に装入し、次
いでコークス１を冷却室６，６′，６″内の火格子
４上へ連続的、あるいは断続的に供給し、同コー
クス１を同冷却室６，６′，６″において循環する
冷却用不活性ガス５，５′，５″と熱交換して消火
し、着火温度以下まで冷却したら、消火設備外へ
排出する。また冷却用不活性ガス５，５′，５″は
コークス１との熱交換により加熱されたのち、ダ
クト及びサイクロン８を経て排熱ボイラ１１等へ
導かれて、ここで冷却され、冷却用不活性ガスの
循環フアン７，７′，７″により再度冷却室６，
６′，６″へ送り込まれて、以後同様の作用を繰返
すようになつている。 The first overview of conventional red-hot coke dry extinguishing equipment
To explain with the diagram, 1 is coke, 2 is a hopper for charging coke, 3 is the lid of the hopper 2, 4 is a grate, 5, 5', 5'' is the direction in which the circulating cooling inert gas advances, 6 , 6', 6'' are cooling chambers, 7, 7',
7" is a cooling inert gas circulation blower, 8 is a cyclone, 9 is an air supply pipe, 10 is a catalytic reactor, 1
1 is a boiler, 12 is an excess cooling inert gas discharge pipe, 20 is a cooling inert gas supply pipe, and 21 is a flammable gas discharge pipe, which intermittently connects coke 1 to be extinguished to hopper 2 during normal operation. Then, the coke 1 is continuously or intermittently fed onto the grate 4 in the cooling chambers 6, 6', 6''. Extinguish the fire by exchanging heat with the cooling inert gas 5, 5', 5" circulating in the cooling inert gas 5, 5', 5", and after cooling it to below the ignition temperature, discharge it outside the fire extinguishing equipment. After being heated by heat exchange with the coke 1, it is led to the waste heat boiler 11 etc. through the duct and cyclone 8, where it is cooled and then cooled by the cooling inert gas circulation fans 7, 7', 7''. Cooling room 6 again,
6', 6'', and the same action is repeated thereafter.
前記赤熱コークス乾式消火設備へ送られる赤熱
コークスは、コークス炉（図示せず）において完
全に乾留することができないので、同赤熱コーク
ス乾式消火設備での冷却中も、コークス中の未乾
留分がガスとなつて、ホツパ２内あるいは冷却室
６，６′，６″内にH2ガス等の可燃性ガスとして
滞留している。特に赤熱コークス１を装入するホ
ツパ２は、温度が高いため、前述の未乾留可燃性
ガスの発生、滞留が顕著である。この可燃性ガス
の濃度が高い場合、コークス１を装入しようとし
てホツパ２の蓋３を開くと、ホツパ２内の可燃性
ガスと外気（空気）とが混合して、爆発を起こす
可能性が非常に高い。そこで従来は、コークス１
をホツパ２へ安全に装入するために、ホツパ２内
の可燃性ガスの濃度が爆発範囲以下になるまで、
N2ガス等の不活性ガスを冷却用不活性ガス供給
管２０からホツパ２内へ導いて、可燃性ガスを可
燃性ガス排出管２１から排出していた。しかしこ
のような従来の方法では、（）N2ガス等の可燃
性ガスを特別に作らなければならなくて、ランニ
ングコストが増大する。（）使用する不活性ガ
スは、通常常温で導入されるため、ホツパ２内で
のコークス１の放熱が増加する。（）不活性ガ
スを導入して、ホツパ２内の圧力が上昇し、一部
の可燃性ガスが不活性ガスとともに冷却室６，
６′，６″へ流入し、同冷却室６，６′，６″を含む
本体循環系が可燃性雰囲気になるので、同本体循
環系の途中に触媒反応器１０を設け、空気供給管
９からの空気と上記可燃性ガスを含む不活性ガス
とを同触媒反応器１０へ導いて、同不活性ガス中
の可燃性ガスを燃焼させるようにしている。しか
し本体循環系の不活性ガスの全てを触媒反応器１
０へ通すのでは、触媒の寿命を短かくして、ラン
ニングコストを上昇させるという問題があつた。 The red-hot coke sent to the red-hot coke dry extinguishing equipment cannot be completely carbonized in the coke oven (not shown), so even during cooling in the red-hot coke dry extinguishing equipment, the undry distillate in the coke remains gas. As a result, flammable gas such as H2 gas remains in the hopper 2 or in the cooling chambers 6, 6', 6''.In particular, the temperature of the hopper 2 into which the red-hot coke 1 is charged is high; The above-mentioned generation and retention of uncarbonized flammable gas is remarkable.When the concentration of this flammable gas is high, when the lid 3 of the hopper 2 is opened to charge the coke 1, the combustible gas inside the hopper 2 and There is a very high possibility that it will mix with outside air (air) and cause an explosion.Therefore, conventionally, coke 1
In order to safely charge the gas into the hopper 2, the flammable gas in the hopper 2 must be charged until the concentration of combustible gas falls below the explosive range.
An inert gas such as N 2 gas was introduced into the hopper 2 from a cooling inert gas supply pipe 20, and flammable gas was discharged from a combustible gas discharge pipe 21. However, in this conventional method, a combustible gas such as N2 gas must be specially prepared, which increases running costs. () Since the inert gas used is usually introduced at room temperature, the heat radiation of the coke 1 in the hopper 2 increases. () By introducing inert gas, the pressure inside the hopper 2 increases, and some combustible gas flows into the cooling chamber 6 along with the inert gas.
6', 6'', and the body circulation system including the cooling chambers 6, 6', 6'' becomes a flammable atmosphere. Therefore, a catalytic reactor 10 is installed in the middle of the body circulation system, and the air supply pipe 9 The air from the reactor and the inert gas containing the flammable gas are introduced into the catalytic reactor 10, and the combustible gas in the inert gas is combusted. However, all of the inert gas in the main body circulation system is transferred to the catalytic reactor 1.
Passing the temperature to 0 has the problem of shortening the life of the catalyst and increasing running costs.
本発明は前記の問題点に対処するもので、冷却
室を含む本体循環系を循環している冷却用不活性
ガスの一部を取り出し、これをコークス装入ホツ
パへ供給して、同ホツパ内に発生する可燃性ガス
と混合し、次いで同混合ガスを同コークス装入ホ
ツパから取り出して空気と混合し、次いで触媒反
応器へ導いて、上記可燃性ガスを同触媒反応器で
燃焼させることを特徴とした赤熱コークス乾式消
火設備の可燃性ガスの処理方法に係り、その目的
とする処は、ホツパ中に発生した可燃性ガスをほ
ぼ完全に燃焼させることができる。次のコークス
の装入を安全に行なうことができる。さらにラン
ニングコストを低減できる改良された赤熱コーク
ス乾式消火設備の可燃性ガスの処理方法を供する
点にある。 The present invention addresses the above-mentioned problems by taking out a part of the cooling inert gas circulating in the body circulation system including the cooling chamber, supplying it to the coke charging hopper, and supplying it to the coke charging hopper. The mixed gas is then taken out from the coke charging hopper, mixed with air, and then introduced into a catalytic reactor, where the flammable gas is combusted in the catalytic reactor. The method of treating flammable gas in a red-hot coke dry fire extinguishing equipment is characterized by its ability to almost completely burn the flammable gas generated in the hopper. The next charge of coke can be carried out safely. Another object of the present invention is to provide an improved method for treating flammable gas in a red-hot coke dry extinguishing system that can reduce running costs.
次に本発明の赤熱コークス乾式消火設備の可燃
性ガスの処理方法を第２図に示す一実施例により
説明すると、１がコークス、２がコークス装入用
ホツパ、３は同ホツパ２の蓋、４が火格子、５，
５′，５″が循環する冷却用不活性ガスの進む方
向、６，６′．６″が冷却室、７，７′，７″が冷却
用不活性ガスの循環ブロア、８，３４がサイクロ
ン、３３が空気供給管、３２が触媒反応器、１１
がボイラ、１２が過剰の冷却用不活性ガス放出
管、３０がバイパス配管、３１がブロワ、３６が
空気供給管、３７がバルブ、Ｇがホツパ２内に発
生した可燃性ガスである。 Next, the method for treating flammable gas in the red-hot coke dry extinguishing equipment of the present invention will be explained using an embodiment shown in FIG. 2. 1 is coke, 2 is a hopper for charging coke, 3 is a lid of the hopper 2, 4 is the grate, 5,
5', 5'' is the direction in which the circulating inert gas for cooling advances, 6, 6', 6'' is the cooling chamber, 7, 7', 7'' is the circulation blower for the inert cooling gas, 8, 34 is the cyclone. , 33 is an air supply pipe, 32 is a catalyst reactor, 11
1 is a boiler, 12 is an excess cooling inert gas discharge pipe, 30 is a bypass pipe, 31 is a blower, 36 is an air supply pipe, 37 is a valve, and G is a combustible gas generated in the hopper 2.
次に前記赤熱コークス乾式消火設備の作用を説
明する。スタートアツプ時のように処理されるコ
ークスの温度が低くて、コークス層中での可燃性
ガスの燃焼が不可能な場合には、バルブ３７を開
き、触媒反応器３２の系統を作動させて、ホツパ
２に発生する可燃性ガスＧを燃焼する。即ち、ホ
ツパ２内に発生する可燃性ガスＧをブロワ３１に
よりホツパ２外へ導き出し、空気供給管３３から
送られてくる所定量の空気と混合し、次いで触媒
反応器３２へ送り込み、反応器３２中で可燃性分
をほぼ完全に燃焼させ、次いで冷却室６及びサイ
クロン８を経た本体循環系の不活性ガス４０と合
流させたのち、ボイラ１１へ送つて、熱交換させ
る。本体循環系の冷却用不活性ガスはその後、循
環ブロワ７″へ戻され、コークス層４１を順次通
過することにより、コークス１を冷却する。また
高温側の循環ブロワ７を通過した本体循環系の冷
却用不活性ガスは、冷却室６の手前でその一部が
バイパス用ブロワ３５を介してバイパスライン３
０へ取り出される。この取り出された不活性ガス
は、ホツパ２に送入され、同ホツパ２内に発生し
た可燃性ガスＧを薄めて、触媒反応器３２へ送り
出す作用を行なう。このとき、ホツパ２内に発生
する可燃性ガスＧの量に見合つた不活性ガスをバ
イパス用ブロワ３５からホツパ２へ供給してやれ
ば、ホツパ２内の可燃性雰囲気を所定時間内に不
燃性化することができる。 Next, the operation of the red hot coke dry extinguishing equipment will be explained. When the temperature of the coke to be treated is low, such as during start-up, and combustion of flammable gas in the coke layer is impossible, the valve 37 is opened and the catalytic reactor 32 system is activated. The flammable gas G generated in the hopper 2 is burned. That is, the combustible gas G generated in the hopper 2 is guided out of the hopper 2 by the blower 31, mixed with a predetermined amount of air sent from the air supply pipe 33, and then sent to the catalytic reactor 32. The combustible components are almost completely burned therein, and then, after passing through the cooling chamber 6 and the cyclone 8, it is combined with the inert gas 40 of the main circulation system, and then sent to the boiler 11 for heat exchange. The cooling inert gas in the body circulation system is then returned to the circulation blower 7'' and cools the coke 1 by successively passing through the coke layer 41. Before the cooling chamber 6, a part of the cooling inert gas passes through the bypass blower 35 to the bypass line 3.
Extracted to 0. The extracted inert gas is fed into the hopper 2, dilutes the combustible gas G generated in the hopper 2, and sends the diluted gas to the catalytic reactor 32. At this time, if an inert gas corresponding to the amount of combustible gas G generated in the hopper 2 is supplied from the bypass blower 35 to the hopper 2, the flammable atmosphere in the hopper 2 can be made non-flammable within a predetermined time. be able to.
本発明の赤熱コークス乾式消火設備の可燃性ガ
スの処理方法は前記のように冷却室６に向う冷却
用不活性ガスの一部を取り出して、ホツパ２へ送
入し、同ホツパ２内に発生した可燃性ガスＧを同
冷却用不活性ガスにより薄めて、空気とともに触
媒反応器３２へ送るので、ホツパ２内に発生した
可燃性ガスＧをほぼ完全に燃焼させることができ
る。またホツパ２内には、本体循環系を循環して
いる不活性ガス（燃焼排ガス）を送入し、同ホツ
パ２内に発生した可燃性ガスＧを薄めて、同ホツ
パ２内を不活性雰囲気にするので、次のコークス
の装入を安全に行なうことができる。また触媒反
応器３２により処理するガス量は本体循環系から
取り出した不活性ガスの一部が主体になるので、
従来の処理方法に比べて可燃性ガスの処理量を著
しく低減でき、触媒の消耗を可及的に防止でき、
ランニングコストを低減できる効果がある。 The method for treating flammable gas in the red-hot coke dry extinguishing equipment of the present invention is to take out a part of the cooling inert gas headed for the cooling chamber 6 as described above and send it to the hopper 2 to generate gas in the hopper 2. Since the combustible gas G generated in the hopper 2 is diluted with the cooling inert gas and sent to the catalytic reactor 32 together with air, the combustible gas G generated in the hopper 2 can be almost completely combusted. In addition, the inert gas (combustion exhaust gas) that is circulating in the circulation system of the main body is fed into the hopper 2 to dilute the flammable gas G generated in the hopper 2, creating an inert atmosphere inside the hopper 2. Therefore, the next coke charge can be carried out safely. In addition, the amount of gas processed by the catalytic reactor 32 is mainly a part of the inert gas taken out from the main circulation system, so
Compared to conventional processing methods, the amount of flammable gas processed can be significantly reduced, and catalyst consumption can be prevented as much as possible.
This has the effect of reducing running costs.
なお定常操業時のように処理コークス温度が高
いときには、可燃性ガスがコークス層中の酸素に
より充分燃焼されるので、このような場合には、
バルブ３７を閉じ、触媒反応器３２の系統の作動
を停止し、バイパス３０の系統のみを作動して、
ホツパ２内に発生する可燃性ガスＧを冷却室６，
６′，６″の方向へ押出すことにより、ホツパ２内
を次のコークス装入時迄に不活性雰囲気にするこ
とができる。このとき、本体循環系内へ押出され
た可燃性ガスは、ボイラ１１循環ブロア７″，
７′を経たのち、ブロワ７から冷却室６へ吹込ま
れる冷却用不活性ガスと同ブロア７の手前から吹
込まれる空気３６とがコークス層４１を通過する
ことにより、燃焼させることができるので、定常
操業時に、高価なパージ用N2ガス等の不活性ガ
スを必要とせず、しかも触媒反応器を使用しなく
て、パージ用N2ガス等の使用及び触媒の消耗に
伴うランニングコストの増加もなく、この点でも
有利に操業できる。 In addition, when the treated coke temperature is high as during steady operation, the combustible gas is sufficiently combusted by the oxygen in the coke layer, so in such a case,
Close the valve 37, stop the operation of the catalytic reactor 32 system, and operate only the bypass 30 system,
The flammable gas G generated in the hopper 2 is removed from the cooling chamber 6.
By extruding in the directions 6' and 6'', the inside of the hopper 2 can be made into an inert atmosphere until the next time of coke charging.At this time, the flammable gas pushed into the main body circulation system is Boiler 11 circulation blower 7″,
7', the cooling inert gas blown from the blower 7 into the cooling chamber 6 and the air 36 blown from before the blower 7 pass through the coke layer 41 and can be combusted. During steady operation, there is no need for expensive inert gas such as N2 gas for purging, and there is no need to use a catalytic reactor, which increases running costs due to the use of N2 gas for purging and exhaustion of the catalyst. In this respect, the operation can be carried out advantageously.
以上本発明を実施例について説明したが、勿論
本発明はこのような実施例にだけ局限されるもの
ではなく、本発明の精神を逸脱しない範囲内で
種々の設計の改変を施しうるものである。 Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design modifications can be made without departing from the spirit of the present invention. .
第１図は従来の赤熱コークス乾式消火設備を示
す系統図、第２図は本発明の可燃性ガスの処理方
法の実施に使用する赤熱コークス乾式消火設備の
一例を示す系統図である。
１……コークス、２……コークス装入ホツパ、
５，５′，５″……冷却用不活性ガス、６，６′，
６″……冷却室、３２……触媒反応器、３３……
空気供給管、Ｇ……可燃性ガス。
FIG. 1 is a system diagram showing a conventional red-hot coke dry type extinguishing equipment, and FIG. 2 is a system diagram showing an example of a red-hot coke dry type fire extinguishing equipment used for implementing the flammable gas processing method of the present invention. 1...Coke, 2...Coke charging hopper,
5, 5', 5''... Inert gas for cooling, 6, 6',
6″...Cooling chamber, 32...Catalytic reactor, 33...
Air supply pipe, G...flammable gas.
Claims (1)
用不活性ガスの一部を取り出し、これをコークス
装入ホツパへ供給して、同ホツパ内に発生する可
燃性ガスと混合し、次いで同混合ガスを同コーク
ス装入ホツパから取り出して空気と混合し、次い
で触媒反応器へ導いて、上記可燃性ガスを同触媒
反応器で燃焼させることを特徴とした赤熱コーク
ス乾式消火設備の可燃性ガスの処理方法。1. Take out a part of the cooling inert gas circulating in the main body circulation system including the cooling chamber, supply it to the coke charging hopper, mix it with the flammable gas generated in the hopper, and then A flammable gas in a red-hot coke dry extinguishing equipment characterized by taking out the mixed gas from the coke charging hopper, mixing it with air, and then guiding it to a catalytic reactor, where the flammable gas is combusted in the catalytic reactor. processing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58168285A JPH0244353B2 (en) | 1983-09-14 | 1983-09-14 | SEKINETSUKOOKUSUKANSHIKISHOKASETSUBINOKANENSEIGASUNOSHORIHOHO |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58168285A JPH0244353B2 (en) | 1983-09-14 | 1983-09-14 | SEKINETSUKOOKUSUKANSHIKISHOKASETSUBINOKANENSEIGASUNOSHORIHOHO |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6060183A JPS6060183A (en) | 1985-04-06 |
| JPH0244353B2 true JPH0244353B2 (en) | 1990-10-03 |
Family
ID=15865181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58168285A Expired - Lifetime JPH0244353B2 (en) | 1983-09-14 | 1983-09-14 | SEKINETSUKOOKUSUKANSHIKISHOKASETSUBINOKANENSEIGASUNOSHORIHOHO |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0244353B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05283614A (en) * | 1992-01-16 | 1993-10-29 | Crystal Semiconductor Corp | Capacitor structure of integrated circuit |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0794661B2 (en) * | 1986-03-19 | 1995-10-11 | 三菱重工業株式会社 | Red hot coke dry fire extinguishing equipment combustible gas treatment method |
-
1983
- 1983-09-14 JP JP58168285A patent/JPH0244353B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05283614A (en) * | 1992-01-16 | 1993-10-29 | Crystal Semiconductor Corp | Capacitor structure of integrated circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6060183A (en) | 1985-04-06 |
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