JPH0222383A - Process for dry-quenching of coke - Google Patents
Process for dry-quenching of cokeInfo
- Publication number
- JPH0222383A JPH0222383A JP63173143A JP17314388A JPH0222383A JP H0222383 A JPH0222383 A JP H0222383A JP 63173143 A JP63173143 A JP 63173143A JP 17314388 A JP17314388 A JP 17314388A JP H0222383 A JPH0222383 A JP H0222383A
- Authority
- JP
- Japan
- Prior art keywords
- coke
- prechamber
- combustion
- gas
- reaction
- 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
- 239000000571 coke Substances 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims description 13
- 238000010791 quenching Methods 0.000 title abstract 3
- 239000007789 gas Substances 0.000 claims abstract description 36
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 12
- 239000001301 oxygen Substances 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims description 33
- 238000006243 chemical reaction Methods 0.000 abstract description 22
- 238000002485 combustion reaction Methods 0.000 abstract description 20
- 239000002918 waste heat Substances 0.000 abstract description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 5
- 239000001569 carbon dioxide Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000001174 ascending effect Effects 0.000 abstract description 2
- 238000005422 blasting Methods 0.000 abstract 2
- 230000000171 quenching effect Effects 0.000 abstract 2
- 238000007664 blowing Methods 0.000 description 10
- 230000007423 decrease Effects 0.000 description 6
- 239000011261 inert gas Substances 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000005728 strengthening Methods 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
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、コークス乾式消火設備の操業において、塊
コークスの塔内燃焼を抑制するコークス乾式消火方法に
関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a coke dry extinguishing method for suppressing the combustion of lump coke in a column in the operation of coke dry extinguishing equipment.
従来の技術
］−ウス類から窯出しされる赤熱コークスを乾式消火す
るには、第１図に示すコークス乾式消火設備が使用され
る。BACKGROUND OF THE INVENTION A coke dry extinguishing equipment shown in FIG. 1 is used to dry extinguish red-hot coke discharged from a kiln from coke.
このコークス乾式消火設備は、頂部に装入口（７）を有
するプレチャンバ−（１）と、下部に冷却用のガス吹込
み装置（８）を有し底部にコークス切出し口（９）を設
けた冷却室（２）で冷却塔（３）が構成され、プレチャ
ンバ−（１）の周壁内にはプレチャンバ−（１）と冷却
室（２）の境界周壁面に沿って開口する多数の小煙道（
１０）が設けられる。この小煙道（１０）は、廃熱ボイ
ラ（５）との間を除塵器（１１）を有する煙道（４）で
接続される。そして廃熱ボイラ（５）の出側にはブロワ
−（６）を有する配管（１２）が設けられ、その下流側
管端は冷却塔内のガス吹込み装置（８）に接続されてお
り、冷却塔（３）、煙道（４）、廃熱ボイラ（５）、配
管（１２）を不活性ガスが循環して流れるように構成さ
れている。This coke dry extinguishing equipment has a prechamber (1) with a charging port (7) at the top, a cooling gas blowing device (8) at the bottom, and a coke cutting port (9) at the bottom. A cooling tower (3) is constituted by the cooling chamber (2), and there are many small openings in the peripheral wall of the prechamber (1) along the boundary wall surface between the prechamber (1) and the cooling chamber (2). Flue (
10) is provided. This small flue (10) is connected to a waste heat boiler (5) by a flue (4) having a dust remover (11). A pipe (12) having a blower (6) is provided on the outlet side of the waste heat boiler (5), and the downstream end of the pipe is connected to a gas blowing device (8) in the cooling tower. The inert gas is configured to circulate and flow through the cooling tower (3), flue (4), waste heat boiler (5), and piping (12).
装入口（７）から装入された赤熱コークスは、冷却塔（
３）内を下降する間にガス吹込み装置（８）から吹込ま
れ、冷却室内を上昇する不活性ガスにより冷却される。The red hot coke charged from the charging port (7) is transferred to the cooling tower (
3) While descending inside the cooling chamber, it is blown in from the gas blowing device (8) and cooled by inert gas rising inside the cooling chamber.
冷却された塊コークスは切出し口（９）から排出される
。The cooled lump coke is discharged from the cutting port (9).
一方、赤熱コークスと熱交換して加熱された不活性ガス
は小煙道（１０）から煙道（４）を通って除塵器（１１
）に入り、ここで粉コークスが除かれる。そして、粉コ
ークスを除いた不活性ガスは、廃熱ボイラ（５）に入り
熱交換して冷却される。冷却された不活性ガスはブロワ
−（６）を通って再びガス吹込み装置（８）から塔内に
吹込まれ循環して使用される。On the other hand, the inert gas heated by exchanging heat with the red-hot coke passes from the small flue (10) through the flue (4) to the dust remover (11).
), where the coke powder is removed. Then, the inert gas excluding the coke powder enters the waste heat boiler (5) and is cooled by heat exchange. The cooled inert gas passes through the blower (6) and is again blown into the tower from the gas blowing device (8) for circulation and use.
このコークス乾式消火設備の操業において、系内で発生
する粉コークスの有効利用あるいは発生ガスの回収をす
るため、従来から種々の工夫がなされている。例えば、
廃熱ボイラへの入熱低下時に冷却室へ空気を導入して赤
熱コークスを部分的に燃焼してボイラ入熱を一定化する
方法（特開昭５２−８５２０３号公報）、除塵器ホッパ
ー下部に空気を吹込み粉コークスを不完全燃焼させて循
環ガスの成分、温度を調整自在とする方法（特公昭５７
−１５７８９号公報）、冷却塔下部に吹込まれる循環ガ
ス中に空気を導入し、循環ガスを高温、高カロリー化し
、熱交換後に余剰ガスを燃料ガスとして回収する方法（
特開昭５８−４９７８１号公報）、集塵器で捕集された
粉コークスを系外に設置した燃焼設備で燃焼させ、発生
した排ガスを廃熱ボイラに吹込みエネルギーを回収する
粉コークスの処理方法（特開昭６０−２０３６９３号公
報）、集塵器で回収した微粉コークスを空気と共にプレ
チャンバ−のコークス下限レベルより下の赤熱コークス
中に吹込み、廃熱ボイラの回収蒸気量を増加させる方法
（特開昭６１−８７７８１号公報）などが知られている
。In the operation of this coke dry fire extinguishing equipment, various efforts have been made to effectively utilize the coke powder generated within the system or to recover the generated gas. for example,
A method of stabilizing the boiler heat input by introducing air into the cooling chamber to partially burn the red-hot coke when the heat input to the waste heat boiler decreases (Japanese Patent Application Laid-open No. 52-85203), at the bottom of the dust remover hopper. A method of blowing air to cause incomplete combustion of coke powder and making it possible to freely adjust the composition and temperature of circulating gas (Special Publication No. 57
-15789 Publication), a method in which air is introduced into the circulating gas blown into the lower part of the cooling tower, the circulating gas is made to have a high temperature and high calorie, and the surplus gas is recovered as fuel gas after heat exchange (
(Japanese Patent Application Laid-open No. 58-49781), processing of coke breeze in which the coke breeze collected by a dust collector is burned in a combustion equipment installed outside the system, and the generated exhaust gas is blown into a waste heat boiler to recover energy. A method (Japanese Unexamined Patent Publication No. 60-203693), in which fine coke collected by a dust collector is blown into red-hot coke below the lower coke level in a prechamber together with air to increase the amount of recovered steam in a waste heat boiler. A method (Japanese Unexamined Patent Publication No. 61-87781) is known.
これらの提案は、コークス炉から窯出しされたコークス
及び乾式消火設備で発生した安価な粉コークスを当該系
内で酸素または二酸化炭素で反応させるか、あるいは粉
コークスを系外に設置した燃焼設備で燃焼させた排ガス
を廃熱ボイラに吹込み、粉コークス燃焼エネルギーを回
収するものである。These proposals involve either reacting coke discharged from a coke oven with cheap coke breeze generated in a dry fire extinguishing system with oxygen or carbon dioxide, or using a combustion facility with coke breeze installed outside the system. The combusted exhaust gas is blown into a waste heat boiler to recover the energy from coke breeze combustion.
しかし、これらの燃焼強化推進と乾式消火設備系内での
粉化抑制対策とあいまって、系内の粉コークス発生旧が
減少する傾向にあり、系内燃焼をさらに推進した場合、
高価な塊コークスとの反応へと移行し、塊コークスの回
収歩留りが低下し、また二酸化炭素とのソリューション
ロス反応により塊コークスの品質が低下するなどの問題
が起る恐れがある。ざらに、系外燃焼法では膨大な設備
コストが必要である。However, with these efforts to strengthen combustion and take measures to suppress pulverization within the dry fire extinguishing equipment system, the amount of coke breeze generated within the system tends to decrease, and if internal combustion is further promoted,
Problems such as a shift to reaction with expensive lump coke, a decrease in the recovery yield of the lump coke, and a decrease in the quality of the lump coke due to a solution loss reaction with carbon dioxide, may occur. In general, the off-site combustion method requires enormous equipment costs.
発明が解決しようとする課題
］−クス屹式消火設備系内で粉コークスの燃焼または反
応強化を推進した場合、高価な塊コークスとの反応へと
移行し、塊コークスの回収歩留りが低下する。また塊コ
ークス表面で二酸化炭素と反応すれば、第３図に示すよ
うに実験室的規模での試験では塊コークスの表面ガス化
反応の推進により、明らかに強度が低下し塊コークスの
品質が劣化する。[Problems to be Solved by the Invention] - When combustion or reaction enhancement of coke breeze is promoted in a coke fire extinguishing system, the process shifts to reaction with expensive lump coke, and the recovery yield of lump coke decreases. In addition, if the lump coke reacts with carbon dioxide on the surface, as shown in Figure 3, in laboratory-scale tests, the strength clearly decreases and the quality of the lump coke deteriorates due to the promotion of gasification reaction on the surface of the lump coke. do.
この発明は、上記系内粉コークスの燃焼または反応推進
強化による塊コークスへの反応を抑制した乾式消火方法
を提供することを目的とする。An object of the present invention is to provide a dry fire extinguishing method that suppresses the reaction to lump coke due to combustion of coke powder in the system or enhanced reaction promotion.
課題を解決するための手段
上記目的を達成するため、この発明はコークス乾式消火
設備の操業中に、プレチャンバ−頂部の装入口から粉コ
ークスを投入すると共に、冷却塔内ガス吹込み装置へ送
られる循環ガス中に空気または酸素を吹込み、消火塔の
冷却室内で粉コークスを燃焼させるヶ
この際の粉コークスの装入は、プレチャンバ−頂部の装
入口から連続して投入するか、あるいは間欠的に投入す
る。また、循環ガス中への空気または酸素の吹込みは、
冷却塔と廃熱ボイラとの間を接続している煙道、または
廃熱ボイラと冷却塔下部との間を接続している配管の任
意の個所から吹込むことができる。Means for Solving the Problems In order to achieve the above objects, the present invention provides a method for injecting coke breeze into the charging port at the top of the prechamber and sending it to the gas blowing device in the cooling tower during the operation of the coke dry extinguishing equipment. Air or oxygen is blown into the circulating gas, and the coke breeze is combusted in the cooling chamber of the fire tower. At this time, the coke breeze can be charged continuously from the charging port at the top of the prechamber, or Inject intermittently. In addition, blowing air or oxygen into the circulating gas
The air can be blown from any part of the flue connecting the cooling tower and the waste heat boiler or the piping connecting the waste heat boiler and the lower part of the cooling tower.
作 用
プレチャンバ−頂部の装入口から投入された粉コークス
は、塊コークスに混ざってプレチャンバ−から冷却室を
下降する。そして、下降する粉コークスは、吹込み装置
から塔内に吹込まれ上昇する循環ガスと接触する。この
循環ガスには空気または酸素が吹込まれており、そのた
めガス中に含まれる酸素または二酸化炭素等が加熱して
いるコークスと接触して反応、燃焼する。この際の反応
速度は、第４図に示すように実験室での反応温度と反応
速度の関係を調べた結果によれば、コークス粒径が小さ
いほど大きい。そのため、粉コークスが先に反応、燃焼
して塊コークスは燃焼しずらい。Operation: The coke breeze introduced from the charging port at the top of the prechamber mixes with the lump coke and moves down the cooling chamber from the prechamber. The descending coke breeze is then blown into the column from the blowing device and comes into contact with the ascending circulating gas. Air or oxygen is blown into this circulating gas, so that the oxygen, carbon dioxide, etc. contained in the gas come into contact with the heated coke, react and burn. The reaction rate at this time is higher as the coke particle size is smaller, according to the results of a laboratory study of the relationship between reaction temperature and reaction rate, as shown in FIG. Therefore, the coke powder reacts and burns first, making it difficult for the lump coke to burn.
このようにして、投入された粉コークスは塔内で燃焼し
、その際の燃焼エネルギーは赤熱コークスの熱エネルギ
ーと共に煙道から廃熱ボイラに送られ、ボイラ入熱の一
定化及び増大に有効に働く。In this way, the charged coke breeze is combusted in the tower, and the combustion energy at that time is sent from the flue to the waste heat boiler along with the thermal energy of the red-hot coke, effectively stabilizing and increasing the boiler heat input. work.
なお、冷却塔内での粉コークスの燃焼状況は、冷却塔出
口または廃熱ボイラ入口における循環ガス成分（Ｃｏ、
ＣＯ２、０２，Ｈ２，Ｈ２０など〉を分析して把握す
る。また、その結果に基いて、粉コークスの投入および
循環ガス中への空気または酸素吹込みを制御する。The combustion status of coke breeze in the cooling tower is determined by the circulating gas components (Co, Co,
CO2, 02, H2, H20, etc.)> will be analyzed and understood. Also, based on the results, the injection of coke breeze and the blowing of air or oxygen into the circulating gas are controlled.
実施例
実施例１
コークス炉から窯出しされた赤熱コークスを、第１図に
示すコークス乾式消火設備を使って、コークス処理団１
１０丁／Ｈ，循環ガス量１７１にＮｍ３／Ｈの運転条件
で操業した。Examples Example 1 The red-hot coke taken out of the coke oven from the kiln is heated to a coke treatment group 1 using the coke dry extinguishing equipment shown in Fig. 1.
It was operated under operating conditions of 10 cylinders/H and a circulating gas amount of 171 Nm3/H.
その際、煙道（４）または配管〔１２）から空気を吹込
み、循環ガス中の８２．Ｇｏなどの可燃性ガスを完全燃
焼させ、不活性ガスを循環して赤熱コークスの消火を行
った。この際の冷却塔内の温度と反応量分布を第２図Ａ
に示す。At that time, air is blown from the flue (4) or piping [12], and 82. Combustible gas such as Go was completely combusted, and inert gas was circulated to extinguish red-hot coke. Figure 2A shows the temperature and reaction amount distribution inside the cooling tower at this time.
Shown below.
さらに、吹込む空気を増して、冷却塔入口における循環
ガス中のＯ２含有量を１％として消火を行った。この際
の冷却塔内の温度と反応量分布を第２図Ｂに示す。Furthermore, the amount of air blown was increased to extinguish the fire by setting the O2 content in the circulating gas at the inlet of the cooling tower to 1%. The temperature and reaction amount distribution within the cooling tower at this time are shown in FIG. 2B.
この結果から、循環ガス中に空気または酸素を含有させ
ると、冷却塔内でコークスが反応、燃焼することを確認
した。From this result, it was confirmed that coke reacts and burns in the cooling tower when air or oxygen is included in the circulating gas.
実施例２
コークス乾式消火設備の運転は、通常コークス窯出し中
に７〜８分間隔で赤熱コークスをプレチャンバ−に投入
しており、この間装入口蓋は５〜５分間閉じ、２〜３分
間閉いている。Example 2 In the operation of a coke dry extinguishing system, red hot coke is normally charged into a prechamber at intervals of 7 to 8 minutes during unloading from a coke oven. Closed.
そこで、処理能力１２０ 丁／Ｈのコークス乾式消火設
備を使ってコークス処理１１１０ 丁／Ｈ，循環ガス１
１７１ ＫＮｍ３／Ｈの運転条件で操業中のプレチャン
バ−に、装入口蓋が閉じている間だけ、粉コークスの量
を変化させて添加し、また循環ガスへの空気吹込み量を
変えて運転した。そして、消火塔から排出される切出し
コークス温度、粉コークス量、蒸気回収層を調べた。そ
の結果を第１表に示す。Therefore, using coke dry extinguishing equipment with a processing capacity of 120 tons/H, coke treatment was performed at 1110 tons/H, circulating gas 1
The amount of coke breeze was varied and added to the prechamber operating under the operating conditions of 171 KNm3/H only while the charging port cover was closed, and the amount of air blown into the circulating gas was varied. did. The temperature of the cut coke discharged from the fire tower, the amount of coke breeze, and the steam recovery layer were investigated. The results are shown in Table 1.
以下余白
すなわち、テスト１は第１図のコークス乾式消火設備の
煙道（４）または配管（１２）から空気を循環ガス中に
吹込み、循環ガス中の８２．Ｇｏなどの可燃性ガスを完
全燃焼させたが、冷却塔入口における循環ガス中には０
２を含有しない場合である。ざらに、空気の吹込み量を
増し、冷却塔入口における循環ガス中の０２比を徐々に
増し、テスト２では０２含有層を０．５％とした。その
結果蒸気回収りは大幅に増加し、逆に粉コークス回収量
は３．３丁／Ｈから２．９丁／Ｈに減少した。この結果
より、コークス乾式消火設備のスタビライズなどで発生
する粉コークスが循環ガス中の０２と反応して、第４図
の実験室での反応温度と反応速度の結果により確認して
いるように、７００〜１０００℃の冷却塔上部領域で燃
焼しているものと推察される。Test 1 was conducted by blowing air into the circulating gas from the flue (4) or piping (12) of the coke dry extinguishing equipment shown in Figure 1. Although combustible gases such as Go were completely combusted, 0% remained in the circulating gas at the cooling tower inlet.
This is the case where it does not contain 2. Roughly, the amount of air blown was increased, and the 02 ratio in the circulating gas at the cooling tower inlet was gradually increased, and in Test 2, the 02-containing layer was set to 0.5%. As a result, steam recovery increased significantly, and conversely, the amount of coke breeze recovered decreased from 3.3 tons/H to 2.9 tons/H. From this result, coke powder generated during stabilization of coke dry extinguishing equipment reacts with 02 in the circulating gas, and as confirmed by the reaction temperature and reaction rate results in the laboratory in Figure 4, It is presumed that the combustion occurred in the upper region of the cooling tower at a temperature of 700 to 1000°C.
次いで、テスト３に示すように、空気吹込み口をさらに
４０００ Ｎｍ’／Ｈ増やし強化した結果、テスト２で
見られた蒸気回収量の大幅な増加はなく、塊コークス温
度の上昇が認められた。つまり、この事実により、テス
ト２で見られた冷却塔上部での粉コークスの燃焼は、粉
コークスが不足のため、塊コークスの燃焼へと移行した
ものと推察される。Next, as shown in Test 3, as a result of further strengthening the air inlet by 4000 Nm'/H, there was no significant increase in the amount of steam recovery seen in Test 2, but an increase in lump coke temperature was observed. . In other words, based on this fact, it is inferred that the combustion of coke breeze in the upper part of the cooling tower in Test 2 shifted to the combustion of lump coke due to the lack of coke breeze.
そこで、テスト４では、冷却塔上部の装入口（７）から
粉コークスを０．ＢＴ／Ｈ投入しながら、テスト３と同
様に空気を吹込んだ。その結果、蒸気回収量はテスト３
に比べ著しく増加しているにもかかわらず、塊コークス
温度は逆に著しく低下し、しかも粉コークス回収量には
変化がなかった。したがって、この結果からプレチャン
バ−への粉コークスの装入が有効に鋤き、この粉コーク
スの優先燃焼により蒸気回収量が増加すると共に、塊コ
ークスの燃焼が阻止されていることがわかる。Therefore, in Test 4, coke breeze was introduced into the charging port (7) at the top of the cooling tower. Air was blown in the same way as in Test 3 while BT/H was being introduced. As a result, the amount of steam recovered was
Despite the significant increase compared to , the lump coke temperature decreased significantly, and the amount of coke breeze recovered remained unchanged. Therefore, from this result, it can be seen that the charging of coke breeze into the prechamber is effectively carried out, and the amount of steam recovered is increased due to the preferential combustion of this coke breeze, and the combustion of lump coke is prevented.
ざらに、テスト５で粉コークスの装入量を１．０丁／Ｈ
と増して実験したが、その結果はテスト４とあまり差が
なく、粉コークスの装入塔増加による添加効果の向上は
認められなかった。In test 5, the amount of coke powder charged was 1.0 tons/h.
An additional experiment was conducted, but the results were not much different from Test 4, and no improvement in the addition effect was observed by increasing the number of coke breeze charging towers.
発明の効果
この発明は、コークス乾式消火設備の操業において、冷
却塔上部の装入口から粉コークスをプレチャンバ−内に
装入すると共に、循環ガス中に空気または酸素を添加さ
せるだけで、塊コークスの冷却塔内での燃焼を防止し、
かつ発生する熱エネルギーを増加できる。その結果、塊
コークスの成品歩留が向上すると共に、コークス消火の
操業費を低減できる。Effects of the Invention In the operation of coke dry extinguishing equipment, the present invention charges coke breeze into a prechamber from the charging port at the top of the cooling tower, and simply adds air or oxygen to the circulating gas to produce lump coke. combustion in the cooling tower,
And the heat energy generated can be increased. As a result, the product yield of lump coke can be improved and the operating cost of coke extinguishing can be reduced.
第１図はコークス乾式消火設備の要部を示す説明図、第
２図は冷却塔内の温度分布と反応量分布の一例を示すグ
ラフで、Ａ図は通常の操業における場合、Ｂ図は循環ガ
ス中に酸素を添加した場合を示す、第３図はコークスの
ガス化反応量と強度低下の関係を示すグラフ、第４図は
コークス温度と反応速度との関係によりソリューション
ロス反応に及ぼすコークス粒径の影響を示すグラフであ
る。
１・・・プレチャンバー ２・・・冷却室３・・・
冷却塔 ４・・・煙道第１図
１ プレチャンバー
２・冷却室
コークス切出し部からの高さ（ｍ）
ソリューションロス反応ｉ［（ｍｉｎ ）コークス切υ
し部からの高さ（ｍ）
強度低重率（％）Figure 1 is an explanatory diagram showing the main parts of coke dry extinguishing equipment, and Figure 2 is a graph showing an example of the temperature distribution and reaction amount distribution in the cooling tower. Figure 3 shows the case where oxygen is added to the gas. Figure 3 is a graph showing the relationship between coke gasification reaction amount and strength reduction. Figure 4 shows the effect of coke particles on solution loss reaction due to the relationship between coke temperature and reaction rate. It is a graph showing the influence of diameter. 1... Pre-chamber 2... Cooling chamber 3...
Cooling tower 4... Flue Figure 1 1 Pre-chamber 2/Cooling chamber Height from coke cutting part (m) Solution loss reaction i [(min) Height from coke cutting part (m) Intensity low Weight percentage (%)
Claims (1)
頂部装入口から粉コークスを投入すると共に、冷却塔内
へ送入される循環ガス中に空気または酸素を吹込み、消
火塔の冷却室内で粉コークスを燃焼させることを特徴と
するコークス乾式消火方法。 ２ プレチャンバー頂部装入口から粉コークスを連続し
て投入することを特徴とする請求項１記載のコークス乾
式消火方法。 ３ プレチャンバー頂部装入口から粉コークスを間欠的
に投入することを特徴とする請求項１記載のコークス乾
式消火方法。[Claims] 1. During the operation of the coke dry fire extinguishing equipment, coke breeze is charged from the top charging port of the prechamber, and air or oxygen is blown into the circulating gas sent into the cooling tower, and the fire extinguishing tower A dry coke extinguishing method characterized by burning coke powder in a cooling chamber. 2. The coke dry extinguishing method according to claim 1, characterized in that coke powder is continuously charged from the top charging port of the prechamber. 3. The coke dry extinguishing method according to claim 1, characterized in that coke powder is intermittently charged from the top charging port of the prechamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63173143A JPH0222383A (en) | 1988-07-11 | 1988-07-11 | Process for dry-quenching of coke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63173143A JPH0222383A (en) | 1988-07-11 | 1988-07-11 | Process for dry-quenching of coke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0222383A true JPH0222383A (en) | 1990-01-25 |
Family
ID=15954911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63173143A Pending JPH0222383A (en) | 1988-07-11 | 1988-07-11 | Process for dry-quenching of coke |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0222383A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6345842B1 (en) | 1998-10-30 | 2002-02-12 | Nsk Ltd. | Shock absorbing type steering apparatus and a structure for mounting to an automobile body the steering apparatus |
-
1988
- 1988-07-11 JP JP63173143A patent/JPH0222383A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6345842B1 (en) | 1998-10-30 | 2002-02-12 | Nsk Ltd. | Shock absorbing type steering apparatus and a structure for mounting to an automobile body the steering apparatus |
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