Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456
JP4072001B2 - Coke oven combustion method - Google Patents
[go: Go Back, main page]

JP4072001B2 - Coke oven combustion method - Google Patents

Coke oven combustion method Download PDF

Info

Publication number
JP4072001B2
JP4072001B2 JP2002164087A JP2002164087A JP4072001B2 JP 4072001 B2 JP4072001 B2 JP 4072001B2 JP 2002164087 A JP2002164087 A JP 2002164087A JP 2002164087 A JP2002164087 A JP 2002164087A JP 4072001 B2 JP4072001 B2 JP 4072001B2
Authority
JP
Japan
Prior art keywords
fuel gas
temperature
combustion
combustion chamber
chamber
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
Application number
JP2002164087A
Other languages
Japanese (ja)
Other versions
JP2004010699A (en
Inventor
啓之 鈴木
秀則 吉満
義則 塚本
秀孝 大島
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP2002164087A priority Critical patent/JP4072001B2/en
Publication of JP2004010699A publication Critical patent/JP2004010699A/en
Application granted granted Critical
Publication of JP4072001B2 publication Critical patent/JP4072001B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Coke Industry (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、石炭を乾留するための炭化室と、この炭化室を両側から加熱するための燃料ガスの燃焼室とが多数交互に配置されたコークス炉の燃焼方法に関するものである。
【0002】
【従来の技術】
一般に用いられている大型の工業用コークス炉は、図5に示すように、石炭を乾留するための炭化室1とこの炭化室1を両側から加熱するための燃料ガスの燃焼室2とが多数交互に配置されて構成されており、さらに燃焼室2は、図6に示すように、縦に細長いフリュー(加熱煙道)3が多数一列に配列されて構成されている。このフリュー3間の隔壁31には縦方向に複数の燃料ガス出口32が設けられており、隔壁31内に設けられた図示していない燃料ガス流路を介してこの燃料ガス出口32よりフリュー3内に燃料ガスが供給されて、図示していない別の空気流路を介してフリュー3内に供給された燃焼用空気により燃料ガスが燃料ガス出口32にて燃焼される。このように従来はフリュー3間の隔壁31に設けた複数の燃料ガス出口32から燃料ガスを供給して燃焼し、燃焼室2内の温度が炉高方向にできるだけ均一になるように加熱していた。
【0003】
燃料ガスの燃焼により炭化室1は両側から加熱されて炭化室1の内部に充填された石炭が乾留される。ここで炭化室1に石炭を充填する際に炭化室1に隙間を残さず石炭を一杯に充填した場合には、石炭が乾留中に膨張して溢れ出す危険があるため、必ず上部に空間を残して充填される。しかしながら、燃焼室2からは石炭充填部、炭化室1上部空間を問わず熱が伝わってくるため、炭化室1上部空間は空焼きのような状態になる。この空焼き状態の空間を石炭から発生した乾留ガスが流れると、乾留ガスが炭化室1の壁面に接触することで熱分解反応が生じ、乾留ガス中のメタンなどの炭化水素ガスが炭素と水素に分解する。この炭素が炭化室1の上部壁面に付着、積層してこぶ状に成長するが、この炭化室1の上部壁面に付着した炭素は固化して炭化室1の対向する壁面同士の間隔を狭くしてしまうため、乾留後のコークスを押出し機械により押し出すことが困難になる。このためコークスの押し出し時に押出し機械が停止してコークス炉の操業が中断したり、押出し機械が損傷するなどの問題が発生していた。
【0004】
【発明が解決しようとする課題】
本発明は上記した従来の問題点を解決し、炭化室上部に付着する炭素の量を低減してコークスの押し出し時に押出し機械が停止される押し詰まり回数を減少させることができるコークス炉の燃焼方法を提供するためになされたものである。
【0005】
【課題を解決するための手段】
上記の課題を解決するためになされた本発明のコークス炉の燃焼方法は、多数のフリューからなる燃料ガスの燃焼室と石炭を乾留する炭化室とが交互に配設されたコークス炉の燃焼方法であって、フリュー間の隔壁に燃料ガス出口を設けるとともにフリューの底部にも燃料ガス出口を設けて、これらの燃料ガス出口で燃料ガスを燃焼して燃焼室に供給される総熱量の30−60%を燃焼室の底部から供給することにより、燃焼室上部の温度を燃焼室下部の温度より低く抑制して石炭を乾留し炭化室上部に付着する炭素の量を低減することを特徴とするものである。
【0006】
なお、フリューの底部に設けた燃料ガス出口においては燃料ガスとして燃焼温度の低い貧ガスを燃焼し、フリュー間の隔壁に設けた燃料ガス出口においても燃料ガスとして前記した貧ガスを燃焼することができ、また、フリューの底部に設けた燃料ガス出口においては燃料ガスとして燃焼温度の高い富ガスを燃焼し、フリュー間の隔壁に設けた燃料ガス出口においては燃料ガスとして燃焼温度の低い貧ガスを燃焼することもできる。
【0007】
本発明のコークス炉の燃焼方法は、多数のフリューからなる燃料ガスの燃焼室と石炭を乾留する炭化室とが交互に配設されたコークス炉の燃焼方法であって、フリュー間の隔壁に燃料ガス出口を設けるとともにフリューの底部にも燃料ガス出口を設けて、これらの燃料ガス出口で燃料ガスを燃焼して燃焼室に供給される総熱量の一部を燃焼室の底部から供給することにより、石炭の乾留時における燃焼室上部の温度を燃焼室下部の温度より低く抑制することができるので、炭化室上部に付着する炭素の量を低減することができる。
【0008】
【発明の実施の形態】
以下に図面を参照しつつ本発明の好ましい実施形態を示す。
図1は本発明を実施するに用いるフリュ−3および燃焼室2を示す図であって、フリュー3の隔壁31に炉高方向に複数の燃料ガス出口32が設けられているうえに、底部33には少なくとも1つの燃料ガス出口34が設けられている。このようなフリュー3が多数並べられて燃焼室2を構成しており、図5に示したように、この燃焼室2と炭化室1とが交互に多数配設されてコークス炉を構成している。このような構造のコークス炉において、フリュー3の底部33の燃料ガス出口34では燃焼温度の高いコークス炉ガス等の富ガスを燃焼し、フリュー3の隔壁31の燃料ガス出口32では燃焼温度の低い高炉ガス等の貧ガスを燃焼する。これによって、ガスの燃焼温度自体に炉高方向での差を与え、燃焼室2の上部における温度を燃焼室2の下部における温度より低くして、石炭乾留時における炭化室1上部を従来より低温に維持することができて、炭化水素ガスの熱分解反応を抑えて炭化室1の上部に付着する炭素の量を低減することができる。なお、燃焼室2の上部における温度を燃焼室2の下部における温度より50℃以上低くするのが炭素の付着量を効果的に低減することができるので望ましい。
【0009】
また、フリュー3の底部33の燃料ガス出口34において燃焼温度の低い高炉ガス等の貧ガスを燃焼し、フリュー3の隔壁31の燃料ガス出口32においても同じく貧ガスを燃焼した場合においても、燃料ガス出口34から所要の熱量を供給することができれば燃焼室2の上部と下部に同様の温度差を付けることができる。
【0010】
フリュー3の底部33に設けた燃料ガス出口34からの燃料ガスの供給熱量は、フリュー3の底部33および隔壁31に設けた燃料ガス出口34、32からの燃料ガスの総供給熱量に対して30〜60%として燃料ガスを供給するのが望ましい。燃料ガスの総供給熱量に対する燃料ガス出口34からの供給熱量の比率が30%未満の場合には、フリュー3底部33での燃焼火炎の形成が不安定になったり、燃焼室2上部の温度を燃焼室2下部の温度より十分低めにすることができないからである。この比率を30%とした時に十分燃焼室2上部の温度を低めとして炭化室1上部への炭素の付着を低減することができる。また、前記した比率が60%を超えると、有用性の高い富ガスが製鉄所全体で不足するなどの問題が発生したりする。したがって、前記した比率を30〜60%とするのが望ましい。
【0011】
また、フリュー3の底部33およびフリュー3間の隔壁31に設けた燃料ガス出口34、32からの燃料ガスの総供給熱量を一定に制御するのが望ましい。即ち、燃料ガス出口34から燃料ガスを供給した場合には、その熱量分を低減して燃料ガス出口32から燃料ガスを供給する。燃料ガスの総供給熱量が一定でない場合には、供給熱量が無駄になったり石炭の乾留の程度にばらつきが生ずることとなるからである。
【0012】
【実施例】
以下実施例により本発明を詳細に説明する。
フリュー3の底部33の一つの燃料ガス出口34からコークス炉ガス(19200kJ/Nm)を供給し、フリュー3間の隔壁31に設けた6個の燃料ガス出口32から高炉ガスと転炉ガスとコークス炉ガスとの混合ガス(5200kJ/Nm)を供給し、コークス炉ガスと混合ガスとの供給熱量比率を1:1として燃焼して炭化室1内の石炭を乾留した。その時図2に示す位置において測定した燃焼室2の炉高方向における温度分布を図3に示すが、燃焼室2上部の温度測定位置▲1▼における温度は、燃焼室2最下部の温度測定位置▲4▼における温度より50℃以上低いものとすることができた。また、フリュー3間の隔壁31に設けた6個の燃料ガス出口32のみから前記混合ガスを供給した場合の従来例と比較しても、実施例における温度測定位置▲1▼での温度を約50℃低くすることができた。図4に燃焼室2の上部の温度測定位置▲1▼における温度とコークスの押出し機が詰まる押し詰まり回数との相関を示すが、図から明らかなように燃焼室2の上部の温度を低くすることによって押し詰まり回数を著しく低減することができた。これは燃焼室2の上部の温度を低くすることによって炭化室1の上部空間の温度が低く抑えられて壁面に付着する炭素の量を低減できたことによるものである。なお、フリュー3間の隔壁31の燃料ガス出口32のみから混合ガスを供給した従来例においては、燃焼室2上部の温度は平均で1190℃であったが、総熱量の50%をフリュー3の底部33の燃料ガス出口34から供給した実施例においては燃焼室2上部の温度を1150℃以下に低下させることができ、したがって、炭素の付着量を少なくして押出し機械の押し詰まり回数を大幅に低減することができた。
【0013】
【発明の効果】
以上に説明したように、本発明のコークス炉の燃焼方法は、多数のフリューからなる燃料ガスの燃焼室と石炭を乾留する炭化室とが交互に配設されたコークス炉の燃焼方法であって、フリュー間の隔壁に燃料ガス出口を設けるとともにフリューの底部にも燃料ガス出口を設けて、これらの燃料ガス出口で燃料ガスを燃焼して燃焼室に供給される総熱量の一部を燃焼室の底部から供給することにより、石炭の乾留時における燃焼室上部の温度を燃焼室下部の温度より低く抑制することができるので、炭化室上部に付着する炭素の量を低減することができる。また、フリューの底部に設けた燃料ガス出口においては燃料ガスとして燃焼温度の低い貧ガスを燃焼し、フリュー間の隔壁に設けた燃料ガス出口においても燃料ガスとして前記した貧ガスを燃焼することによって、石炭の乾留時における燃焼室上部の温度を燃焼室下部の温度より低く抑制することができるし、また、フリューの底部に設けた燃料ガス出口においては燃料ガスとして燃焼温度の高い富ガスを燃焼し、フリュー間の隔壁に設けた燃料ガス出口においては燃料ガスとして燃焼温度の低い貧ガスを燃焼することによっても、石炭の乾留時における燃焼室上部の温度を燃焼室下部の温度より低く抑制することができる。また、フリューの底部に設けた燃料ガス出口から供給される燃料ガスの熱量を、フリューの底部およびフリュー間の隔壁に設けた燃料ガス出口から燃焼室に供給される総熱量に対して30〜60%とすることによって、石炭の乾留時における燃焼室上部の温度を燃焼室下部の温度より低く抑制することができ、さらに、フリューの底部およびフリュー間の隔壁に設けた燃料ガス出口から燃焼室に供給される総熱量を一定に制御することによって燃料ガスを有効に使用して石炭を効率的に乾留することができる。
したがって、本発明は炭化室上部への炭素の付着を少なくしてコークス押出し時における押出し機械の押し詰まり回数を大幅に低減することができるコークス炉の燃焼方法として工業的価値極めて大なものである。
【図面の簡単な説明】
【図1】 本発明の実施に用いるフリューと燃焼室の斜視図である。
【図2】 コークス炉の要部を示す斜視図である。
【図3】 炉高方向の燃焼室内の温度の分布図である。
【図4】 燃焼室上部の温度と押出し機械の押し詰まり回数との相関図である。
【図5】 コークス炉の概略構成を示す斜視図である。
【図6】 従来のフリューと燃焼室の斜視図である。
【符号の説明】
1 炭化室
2 燃料ガスの燃焼室
3 フリュー
31 フリュー間の隔壁
32 燃料ガス出口
33 フリューの底部
34 燃料ガス出口
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a combustion method for a coke oven in which a large number of carbonization chambers for carbonizing coal and fuel gas combustion chambers for heating the carbonization chamber from both sides are alternately arranged.
[0002]
[Prior art]
As shown in FIG. 5, a large industrial coke oven generally used has many carbonization chambers 1 for carbonizing coal and fuel gas combustion chambers 2 for heating the carbonization chamber 1 from both sides. As shown in FIG. 6, the combustion chamber 2 is composed of a plurality of vertically elongated flues (heating flue) 3 arranged in a line. A plurality of fuel gas outlets 32 are provided in the partition wall 31 between the flues 3 in the vertical direction, and the fuel gas outlet 32 is connected to the fuel gas outlet 32 through a fuel gas passage (not shown) provided in the partition wall 31. Fuel gas is supplied into the fuel gas and burned at the fuel gas outlet 32 by the combustion air supplied into the flue 3 via another air passage (not shown). Thus, conventionally, fuel gas is supplied from a plurality of fuel gas outlets 32 provided in the partition wall 31 between the flues 3 and burned, and the temperature in the combustion chamber 2 is heated so that it is as uniform as possible in the furnace height direction. It was.
[0003]
The combustion chamber 1 is heated from both sides by the combustion of the fuel gas, and the coal filled in the carbonization chamber 1 is dry-distilled. When filling the coal chamber 1 with coal without filling the coal chamber 1 with a gap, there is a risk that the coal will expand during the dry distillation and overflow. Filled with leaving. However, since heat is transmitted from the combustion chamber 2 regardless of the coal-filled portion and the upper space of the carbonization chamber 1, the upper space of the carbonization chamber 1 is in an air-burning state. When dry distillation gas generated from coal flows in this empty-burned space, the pyrolysis reaction occurs when the dry distillation gas contacts the wall surface of the carbonization chamber 1, and hydrocarbon gas such as methane in the dry distillation gas becomes carbon and hydrogen. Disassembled into This carbon adheres to the upper wall surface of the carbonization chamber 1 and grows in a hump shape. However, the carbon adhering to the upper wall surface of the carbonization chamber 1 solidifies to narrow the interval between the opposing wall surfaces of the carbonization chamber 1. For this reason, it becomes difficult to extrude the coke after dry distillation with an extrusion machine. For this reason, when the coke is pushed out, the extrusion machine stops and the operation of the coke oven is interrupted, or the extrusion machine is damaged.
[0004]
[Problems to be solved by the invention]
The present invention solves the above-mentioned conventional problems, reduces the amount of carbon adhering to the upper part of the carbonization chamber, and can reduce the number of clogging times that the extrusion machine is stopped when the coke is extruded. It was made to provide.
[0005]
[Means for Solving the Problems]
The coke oven combustion method of the present invention made to solve the above-described problem is a coke oven combustion method in which a combustion chamber for fuel gas composed of a large number of flues and a carbonization chamber for carbonizing coal are alternately arranged. The fuel gas outlet is provided in the partition wall between the fuses, and the fuel gas outlet is also provided at the bottom of the fuse. The fuel gas is burned at these fuel gas outlets, and the total amount of heat supplied to the combustion chamber is 30-. By supplying 60% from the bottom of the combustion chamber, the temperature of the upper portion of the combustion chamber is suppressed to be lower than the temperature of the lower portion of the combustion chamber, and the amount of carbon adhering to the upper portion of the carbonization chamber is reduced by dry distillation of coal. Is.
[0006]
Note that a poor gas having a low combustion temperature is burned as a fuel gas at the fuel gas outlet provided at the bottom of the flue, and the above-mentioned poor gas is burned as a fuel gas also at the fuel gas outlet provided at the partition wall between the flues. In addition, a rich gas having a high combustion temperature is burned as a fuel gas at the fuel gas outlet provided at the bottom of the flue, and a poor gas having a low combustion temperature is provided as a fuel gas at the fuel gas outlet provided in the partition between the flues. Ru can also be burning.
[0007]
A combustion method for a coke oven according to the present invention is a combustion method for a coke oven in which a combustion chamber for a fuel gas composed of a large number of flues and a carbonization chamber for carbonizing coal are alternately disposed, and a fuel is provided in a partition wall between flues. By providing gas outlets and fuel gas outlets at the bottom of the flue, burning fuel gas at these fuel gas outlets, and supplying a part of the total heat supplied to the combustion chamber from the bottom of the combustion chamber Since the temperature of the upper part of the combustion chamber at the time of carbonization of coal can be suppressed lower than the temperature of the lower part of the combustion chamber, the amount of carbon adhering to the upper part of the carbonization chamber can be reduced.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a view showing a fuse 3 and a combustion chamber 2 used for carrying out the present invention. A plurality of fuel gas outlets 32 are provided in a partition wall 31 of the fuse 3 in a furnace height direction, and a bottom 33 is shown. Is provided with at least one fuel gas outlet 34. A large number of such flues 3 are arranged to constitute a combustion chamber 2, and as shown in FIG. 5, a large number of the combustion chambers 2 and the carbonization chambers 1 are alternately arranged to constitute a coke oven. Yes. In the coke oven having such a structure, a rich gas such as a coke oven gas having a high combustion temperature is burned at the fuel gas outlet 34 at the bottom 33 of the flue 3 and a combustion temperature is low at the fuel gas outlet 32 of the partition wall 31 of the flue 3. Burns poor gas such as blast furnace gas. As a result, the gas combustion temperature itself is given a difference in the furnace height direction, the temperature at the upper part of the combustion chamber 2 is made lower than the temperature at the lower part of the combustion chamber 2, and the upper part of the carbonization chamber 1 at the time of coal dry distillation is made lower than before. The amount of carbon adhering to the upper part of the carbonization chamber 1 can be reduced by suppressing the thermal decomposition reaction of the hydrocarbon gas. Note that it is desirable that the temperature in the upper part of the combustion chamber 2 be lower by 50 ° C. or more than the temperature in the lower part of the combustion chamber 2 because the amount of carbon deposition can be effectively reduced.
[0009]
Even when the poor gas such as blast furnace gas having a low combustion temperature is burned at the fuel gas outlet 34 at the bottom 33 of the flue 3 and the poor gas is burned at the fuel gas outlet 32 of the partition wall 31 of the flue 3 as well, If a required amount of heat can be supplied from the gas outlet 34, the same temperature difference can be given to the upper part and the lower part of the combustion chamber 2.
[0010]
The amount of heat supplied from the fuel gas outlet 34 provided at the bottom 33 of the flue 3 is 30 relative to the total amount of heat supplied from the fuel gas outlets 34 and 32 provided at the bottom 33 of the flue 3 and the partition wall 31. It is desirable to supply the fuel gas as ˜60%. When the ratio of the supply heat amount from the fuel gas outlet 34 to the total supply heat amount of the fuel gas is less than 30%, the formation of the combustion flame at the bottom portion 33 of the flue 3 becomes unstable, or the temperature of the upper portion of the combustion chamber 2 is changed. This is because the temperature cannot be sufficiently lower than the temperature below the combustion chamber 2. When this ratio is 30%, the temperature of the upper portion of the combustion chamber 2 can be sufficiently lowered to reduce the adhesion of carbon to the upper portion of the carbonization chamber 1. Moreover, when the above-mentioned ratio exceeds 60%, problems such as lack of highly useful rich gas in the entire steelworks may occur. Therefore, it is desirable to set the above-mentioned ratio to 30 to 60%.
[0011]
Further, it is desirable to control the total supply heat amount of the fuel gas from the fuel gas outlets 34 and 32 provided in the partition wall 31 between the bottom 33 of the flue 3 and the flue 3 to be constant. That is, when fuel gas is supplied from the fuel gas outlet 34, the amount of heat is reduced and the fuel gas is supplied from the fuel gas outlet 32. This is because if the total amount of heat supplied to the fuel gas is not constant, the amount of heat supplied will be wasted or the degree of dry distillation of coal will vary.
[0012]
【Example】
Hereinafter, the present invention will be described in detail by way of examples.
Coke oven gas (19200 kJ / Nm 3 ) is supplied from one fuel gas outlet 34 at the bottom 33 of the flue 3, and blast furnace gas and converter gas are supplied from six fuel gas outlets 32 provided in the partition wall 31 between the flues 3. A mixed gas (5200 kJ / Nm 3 ) with coke oven gas was supplied, and the coal in the carbonizing chamber 1 was dry-distilled by burning at a supply heat ratio of 1: 1 between the coke oven gas and the mixed gas. At that time, the temperature distribution in the furnace height direction of the combustion chamber 2 measured at the position shown in FIG. 2 is shown in FIG. 3, and the temperature at the temperature measurement position {circle around (1)} above the combustion chamber 2 is the temperature measurement position at the bottom of the combustion chamber 2. It was able to be 50 degreeC or more lower than the temperature in (4). Also, compared with the conventional example in which the mixed gas is supplied only from the six fuel gas outlets 32 provided in the partition wall 31 between the fuses 3, the temperature at the temperature measurement position (1) in the embodiment is about The temperature could be lowered by 50 ° C. FIG. 4 shows the correlation between the temperature at the temperature measurement position {circle around (1)} above the combustion chamber 2 and the number of times of clogging at which the coke extruder is clogged. As is clear from the figure, the temperature at the top of the combustion chamber 2 is lowered. As a result, the number of times of clogging could be remarkably reduced. This is because the amount of carbon adhering to the wall surface can be reduced by lowering the temperature of the upper portion of the combustion chamber 2 to keep the temperature of the upper space of the carbonizing chamber 1 low. In the conventional example in which the mixed gas was supplied only from the fuel gas outlet 32 of the partition wall 31 between the flues 3, the temperature at the upper part of the combustion chamber 2 was 1190 ° C. on average, but 50% of the total heat quantity was In the embodiment supplied from the fuel gas outlet 34 of the bottom 33, the temperature of the upper portion of the combustion chamber 2 can be lowered to 1150 ° C. or less, and therefore the number of carbon deposits is reduced and the number of clogging of the extrusion machine is greatly increased. It was possible to reduce.
[0013]
【The invention's effect】
As described above, the combustion method for a coke oven of the present invention is a combustion method for a coke oven in which a combustion chamber for fuel gas composed of a large number of flues and a carbonization chamber for carbonizing coal are alternately arranged. In addition, a fuel gas outlet is provided in the partition wall between the fuses, and a fuel gas outlet is also provided at the bottom of the fuse. A part of the total heat supplied to the combustion chamber by burning the fuel gas at these fuel gas outlets is provided in the combustion chamber. Since the temperature of the upper part of the combustion chamber during coal dry distillation can be suppressed lower than the temperature of the lower part of the combustion chamber, the amount of carbon adhering to the upper part of the carbonization chamber can be reduced. Further, by burning the poor gas having a low combustion temperature as the fuel gas at the fuel gas outlet provided at the bottom of the flue, and burning the above-mentioned poor gas as the fuel gas also at the fuel gas outlet provided at the partition wall between the flues. The temperature at the upper part of the combustion chamber during the carbonization of coal can be suppressed lower than the temperature at the lower part of the combustion chamber, and a rich gas with a high combustion temperature is burned as fuel gas at the fuel gas outlet provided at the bottom of the flue. However, at the fuel gas outlet provided in the partition between the flues, the temperature at the upper part of the combustion chamber at the time of dry distillation of coal is suppressed to be lower than the temperature at the lower part of the combustion chamber by burning poor gas having a low combustion temperature as fuel gas. be able to. Also, the amount of heat of the fuel gas supplied from the fuel gas outlet provided at the bottom of the flue is 30-60 with respect to the total amount of heat supplied to the combustion chamber from the fuel gas outlet provided in the partition between the bottom of the flue and the flue. %, The temperature of the upper part of the combustion chamber during the dry distillation of coal can be suppressed to be lower than the temperature of the lower part of the combustion chamber, and further from the fuel gas outlet provided in the partition between the bottom of the flue and the flue to the combustion chamber. By controlling the total amount of heat supplied to be constant, the coal can be efficiently carbonized using the fuel gas effectively.
Therefore, the present invention has an extremely great industrial value as a combustion method of a coke oven that can reduce the number of clogging of the extrusion machine at the time of coke extrusion by reducing carbon adhesion to the upper part of the carbonization chamber. .
[Brief description of the drawings]
FIG. 1 is a perspective view of a flue and a combustion chamber used in the practice of the present invention.
FIG. 2 is a perspective view showing a main part of a coke oven.
FIG. 3 is a temperature distribution diagram in the combustion chamber in the furnace height direction.
FIG. 4 is a correlation diagram between the temperature at the top of the combustion chamber and the number of clogging of the extrusion machine.
FIG. 5 is a perspective view showing a schematic configuration of a coke oven.
FIG. 6 is a perspective view of a conventional flue and a combustion chamber.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Carbonization chamber 2 Fuel gas combustion chamber 3 Flue 31 Flue partition wall 32 Fuel gas outlet 33 Flue bottom 34 Fuel gas outlet

Claims (3)

多数のフリューからなる燃料ガスの燃焼室と石炭を乾留する炭化室とが交互に配設されたコークス炉の燃焼方法であって、フリュー間の隔壁に燃料ガス出口を設けるとともにフリューの底部にも燃料ガス出口を設けて、これらの燃料ガス出口で燃料ガスを燃焼して燃焼室に供給される総熱量の30〜60%を燃焼室の底部から供給することにより、燃焼室上部の温度を燃焼室下部の温度より低く抑制して石炭を乾留し炭化室上部に付着する炭素の量を低減することを特徴とするコークス炉の燃焼方法。A combustion method of a coke oven in which a combustion chamber for fuel gas composed of a large number of flues and a carbonization chamber for carbonizing coal is alternately arranged, and a fuel gas outlet is provided at the partition between the flues and at the bottom of the flue Combustion of the temperature at the top of the combustion chamber by providing fuel gas outlets and supplying 30 to 60% of the total amount of heat supplied to the combustion chamber by burning the fuel gas at these fuel gas outlets from the bottom of the combustion chamber A combustion method for a coke oven, characterized in that the amount of carbon deposited on the upper part of the carbonization chamber is reduced by carbonizing the coal by lowering the temperature below the lower part of the chamber. フリューの底部に設けた燃料ガス出口においては燃料ガスとして燃焼温度の低い貧ガスを燃焼し、フリュー間の隔壁に設けた燃料ガス出口においても燃料ガスとして前記した貧ガスを燃焼する請求項1に記載のコークス炉の燃焼方法。The poor gas having a low combustion temperature is burned as a fuel gas at the fuel gas outlet provided at the bottom of the flue, and the poor gas is burned as a fuel gas also at the fuel gas outlet provided in the partition wall between the flues. Coke oven combustion method as described. フリューの底部に設けた燃料ガス出口においては燃料ガスとして燃焼温度の高い富ガスを燃焼し、フリュー間の隔壁に設けた燃料ガス出口においては燃料ガスとして燃焼温度の低い貧ガスを燃焼する請求項1に記載のコークス炉の燃焼方法。A rich gas having a high combustion temperature is burned as a fuel gas at a fuel gas outlet provided at the bottom of the flue, and a poor gas having a low combustion temperature is burned as a fuel gas at a fuel gas outlet provided in a partition wall between the flues. 2. A method for burning a coke oven according to 1.
JP2002164087A 2002-06-05 2002-06-05 Coke oven combustion method Expired - Fee Related JP4072001B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002164087A JP4072001B2 (en) 2002-06-05 2002-06-05 Coke oven combustion method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002164087A JP4072001B2 (en) 2002-06-05 2002-06-05 Coke oven combustion method

Publications (2)

Publication Number Publication Date
JP2004010699A JP2004010699A (en) 2004-01-15
JP4072001B2 true JP4072001B2 (en) 2008-04-02

Family

ID=30432333

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002164087A Expired - Fee Related JP4072001B2 (en) 2002-06-05 2002-06-05 Coke oven combustion method

Country Status (1)

Country Link
JP (1) JP4072001B2 (en)

Also Published As

Publication number Publication date
JP2004010699A (en) 2004-01-15

Similar Documents

Publication Publication Date Title
CN102250629B (en) Coking furnace capable of recycling heat energy and coking method
CN101531906B (en) Method for electrical heating continuous coal pyrogenation coking and coking furnace thereof
CN208121019U (en) Coke oven structure with adjustable cross hole
CN104593015A (en) Formcoke refining method and device thereof
JP4072001B2 (en) Coke oven combustion method
CN108315022A (en) Coke oven structure adjustable across holes and adjustment method across holes
CA1077426A (en) Method of operating a battery of coke ovens with a regenerative change of draught
US9879190B2 (en) Internal combustion heating device of coal pyrolyzing furnace
CN111040782B (en) Coking oven and coking system
CN104817084B (en) calcium carbide smelting furnace
CN218478702U (en) An electric heating coke oven
CN110079353A (en) A kind of pulverized coal pyrolysis charing chamber device
CN201381296Y (en) Electric heating coking furnace for continuous coal pyrolysis
JP3610680B2 (en) Reduction method of carbon adhesion in coke oven carbonization chamber
CN115449378B (en) A heating chamber structure of an electrically heated coke oven
US3806426A (en) Gas flow through horizontal coke oven regenerator sections
JP2006152176A (en) Coke oven operating method and coke oven
CN115449377B (en) An electrically heated coke oven
CN110527529B (en) A coke oven regenerator adopting filler method for heat exchange
JPS58134177A (en) Method for controlling combustion temperature distribution in coke oven
CN208154460U (en) A kind of vertical continuous furnace of bottom combustion
JPH07118660A (en) Coke oven program heating method
JP4222233B2 (en) Coke oven discharge by-product processing method
JPH03208809A (en) Production of activated carbon in coke oven
JP2000144142A (en) Removal method of carbon adhering to coke oven carbonization chamber

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20040901

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20070731

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070913

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20080111

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20080118

R151 Written notification of patent or utility model registration

Ref document number: 4072001

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110125

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120125

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130125

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130125

Year of fee payment: 5

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130125

Year of fee payment: 5

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130125

Year of fee payment: 5

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140125

Year of fee payment: 6

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

LAPS Cancellation because of no payment of annual fees