JPH0762352A - Method for controlling furnace pressure in coke oven equipment - Google Patents
Method for controlling furnace pressure in coke oven equipmentInfo
- Publication number
- JPH0762352A JPH0762352A JP22961393A JP22961393A JPH0762352A JP H0762352 A JPH0762352 A JP H0762352A JP 22961393 A JP22961393 A JP 22961393A JP 22961393 A JP22961393 A JP 22961393A JP H0762352 A JPH0762352 A JP H0762352A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- combustion
- chamber
- flue
- flutop
- 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
Links
- 239000000571 coke Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims description 16
- 238000002485 combustion reaction Methods 0.000 claims abstract description 84
- 238000003763 carbonization Methods 0.000 claims abstract description 51
- 239000007789 gas Substances 0.000 claims abstract description 17
- 239000003245 coal Substances 0.000 claims abstract description 15
- 239000000567 combustion gas Substances 0.000 claims abstract description 11
- 230000007423 decrease Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000003034 coal gas Substances 0.000 description 7
- 238000005338 heat storage Methods 0.000 description 6
- 239000002994 raw material Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Coke Industry (AREA)
Abstract
(57)【要約】
【目的】 燃焼室内に供給される一定量の燃焼用ガスと
燃焼用空気との常時完全燃焼を図って、環境上の不利及
び燃焼効率の低下を改善する。
【構成】 原料石炭を装入する炭化室１と、室内上部の
スリップジョイント３を介して炭化室１内に連結され、
供給される燃焼用ガス及び空気を燃焼させて炭化室１内
の原料石炭を乾留処理する燃焼室２と、燃焼室２内から
の燃焼排ガスを煙突に導出する煙道９とを少なくとも備
えるコークス炉設備において、煙道９内のドラフト圧の
変動に対応して、予め求めた煙道内ドラフト圧と前記燃
焼室内フリュートップ圧との相関式から、対応するフリ
ュートップ圧を算出し、算出されたフリュートップ圧と
炭化室の室内圧力との差圧を制御する。
(57) [Summary] [Purpose] Achieve constant and complete combustion of a fixed amount of combustion gas and combustion air supplied into the combustion chamber to improve the environmental disadvantage and decrease in combustion efficiency. [Structure] The carbonization chamber 1 for charging raw coal is connected to the carbonization chamber 1 through a slip joint 3 at the upper part of the chamber,
A coke oven including at least a combustion chamber 2 for performing carbonization treatment of the raw coal in the carbonization chamber 1 by burning the supplied combustion gas and air, and a flue 9 for leading the combustion exhaust gas from the combustion chamber 2 to a chimney. In the equipment, in response to the fluctuation of the draft pressure in the flue 9, the corresponding flutop pressure is calculated from the correlation equation between the flue draft pressure and the flutop pressure in the combustion chamber which is obtained in advance, and the calculated flutop pressure is calculated. The pressure difference between the top pressure and the pressure inside the carbonization chamber is controlled.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、コークス炉設備の炉内
圧力制御方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling pressure inside a coke oven facility.
【０００２】[0002]
【従来の技術】コークス炉は、原料石炭を加熱乾留処理
してコークスを製造するために用いられる。Coke ovens are used to produce coke by subjecting raw coal to a dry distillation process.
【０００３】この種の従来のコークス炉設備の概要構成
を図３に示す。FIG. 3 shows a schematic configuration of a conventional coke oven facility of this type.
【０００４】即ち、この図３において、コークス炉設備
は、炭化室１と、該炭化室１内にスリップジョイント３
を介して室内上部、所謂、フリュートップ１２を連結さ
せた燃焼室２とを備えると共に、該燃焼室２内を煙道９
で煙突１１に連通することによって構成させており、所
定通りに配合された原料石炭は、石炭装入車によって炭
化室１内に装入された後、該炭化室１内への空気の流入
を遮断した状態で、完全燃焼に必要な一定量の燃焼用ガ
スと燃焼用空気とを燃焼室２内に供給させ、その燃焼加
熱により炭化室１内の原料石炭を乾留処理してコークス
を製造するのである。That is, in FIG. 3, the coke oven equipment comprises a carbonization chamber 1 and a slip joint 3 inside the carbonization chamber 1.
And a combustion chamber 2 in which a so-called flutop 12 is connected to the inside of the combustion chamber 2.
The raw material coal mixed in a predetermined manner is charged into the carbonization chamber 1 by a coal charging vehicle, and then the inflow of air into the carbonization chamber 1 is prevented. In the cut-off state, a fixed amount of combustion gas and combustion air necessary for complete combustion are supplied into the combustion chamber 2, and the raw material coal in the carbonization chamber 1 is subjected to carbonization by the combustion heating to produce coke. Of.
【０００５】ここで、前記原料石炭の乾留処理によって
発生する石炭ガスは、前記炭化室１内から、上昇管４に
よって取り出された上で、所謂、コレクチングメーン５
と、それに、バタフライ弁等による圧力制御弁７を配し
た取り出し管路６を経て、図示しないガス精製工程に移
送される。Here, the coal gas generated by the carbonization treatment of the raw material coal is taken out from the inside of the carbonization chamber 1 by the rising pipe 4 and then the so-called collecting main 5 is used.
Then, it is transferred to a gas refining process (not shown) via a take-out pipe line 6 in which a pressure control valve 7 such as a butterfly valve is arranged.
【０００６】そして、この場合、前記炭化室１内での石
炭ガスの発生に伴い、該炭化室１内の室内圧力は、製造
されるコークスの品質安定とか、それに窯口耐火煉瓦の
保護等を目的にして、前記コレクチングメーン５内での
ガス圧が一定に維持されるように、前記圧力制御弁７の
開度を自動制御する。[0006] In this case, as the coal gas is generated in the carbonization chamber 1, the internal pressure in the carbonization chamber 1 is used to stabilize the quality of the coke produced, and to protect the kiln mouth refractory bricks. For the purpose, the opening of the pressure control valve 7 is automatically controlled so that the gas pressure in the collecting main 5 is maintained constant.
【０００７】一方、前記燃焼室２内における燃焼後の排
ガスは、蓄熱室８を介した上で、同様に、バタフライ弁
等による圧力制御弁１０を配した煙道９を経て、煙突１
１から排出される。On the other hand, the exhaust gas after combustion in the combustion chamber 2 goes through the heat storage chamber 8 and also through the flue 9 in which the pressure control valve 10 such as a butterfly valve is arranged, and then the chimney 1
Emitted from 1.
【０００８】そして、この場合にあっても、前記燃焼室
２内の圧力は、完全燃焼を行なわせるために、前記圧力
制御弁１０の開度を自動制御する。Even in this case, the pressure in the combustion chamber 2 automatically controls the opening degree of the pressure control valve 10 in order to perform complete combustion.
【０００９】また、前記燃焼室２内では、前記燃焼後の
排ガス中に含まれるＯ2 濃度が煙道９内で一定に維持さ
れるように、該Ｏ2 濃度の変化に伴って煙道ドラフト圧
力を自動的に調整するもので、このことから、前記燃焼
室２内の燃焼圧力は、煙道９内のドラフト圧力によって
変動する。Further, in the combustion chamber 2, the flue draft is changed in accordance with the change of the O 2 concentration so that the O 2 concentration contained in the exhaust gas after the combustion is kept constant in the flue 9. The pressure is automatically adjusted. Therefore, the combustion pressure in the combustion chamber 2 varies depending on the draft pressure in the flue 9.
【００１０】つまり、上記構成による従来のコークス炉
設備の場合には、前記炭化室１の室内圧力、ひいてはコ
レクチングメーン圧と、燃焼室２の室内圧力、ひいては
フリュートップ圧とが個々各別に圧力制御される結果と
なる。That is, in the case of the conventional coke oven equipment having the above-mentioned construction, the chamber pressure in the carbonization chamber 1, that is, the collecting main pressure, the chamber pressure in the combustion chamber 2, and the flutop pressure are individually pressured. The result is controlled.
【００１１】一層、具体的に述べると、前記炭化室１の
室内圧力については、次のように制御される。More specifically, the internal pressure of the carbonization chamber 1 is controlled as follows.
【００１２】即ち、図４に示されているように、通常の
場合、差圧測定計３１を用いて、基準となる大気圧ａと
コレクチングメーン圧ｂ1 との差圧を検出し、該差圧が
一定となるように制御するもので、前記差圧測定計３１
によって検出された差圧信号ｃ1 をレギュレータ３２に
送り、該レギュレータ３２により前記圧力制御弁７を差
圧に対応して開閉し、結果的に、前記炭化室１の室内圧
力、つまりコレクチングメーン圧を常時一定圧に維持す
るのである。That is, as shown in FIG. 4, in the usual case, the differential pressure measuring instrument 31 is used to detect the differential pressure between the reference atmospheric pressure a and the collecting main pressure b 1 , The pressure difference is controlled so that the pressure difference becomes constant.
The differential pressure signal c 1 detected by the regulator 32 is sent to the regulator 32, and the regulator 32 opens and closes the pressure control valve 7 in response to the differential pressure. As a result, the pressure inside the carbonization chamber 1, that is, the collecting main. The pressure is always kept constant.
【００１３】また、前記燃焼室２の室内圧力について
は、次のように制御される。The internal pressure of the combustion chamber 2 is controlled as follows.
【００１４】即ち、図５（ａ）に示されているように、
先ず、燃焼用空気は、大気中から空気道１５に取り込ま
れると共に、蓄熱室１４を経て予熱された上で、燃焼室
２内に供給され、燃焼用ガス管１３からの燃焼ガスと接
触して燃焼し、前記炭化室１内の原料石炭を乾留する。
一方、燃焼室２内における燃焼後の排ガスは、蓄熱室８
から煙道９を経て煙突１１に送られる。That is, as shown in FIG.
First, the combustion air is taken into the air passage 15 from the atmosphere, preheated through the heat storage chamber 14, and then supplied into the combustion chamber 2 to come into contact with the combustion gas from the combustion gas pipe 13. The raw material coal in the carbonization chamber 1 is combusted and carbonized.
On the other hand, the exhaust gas after combustion in the combustion chamber 2 is the heat storage chamber 8
Is sent from the flue 9 to the chimney 11.
【００１５】そして、図５（ｂ）に示されているよう
に、前記燃焼室２内における燃焼後の排ガス中に含まれ
るＯ2 濃度ｄは、煙道９内に連通させたＯ2 濃度測定計
３３によって検出し、かつここでも前記の場合と同様
に、通常の場合、差圧測定計３４を用いて、基準となる
大気圧ａと排ガス圧ｂ2 との差圧を検出し、該差圧と共
々にＯ2 濃度が一定となるように制御するもので、前記
Ｏ2 濃度測定計３３によって検出されたＯ2 濃度信号ｅ
と、前記差圧測定計３４によって検出された差圧信号ｃ
2 とをレギュレータ３５に送り、該レギュレータ３５に
より前記圧力制御弁１０をＯ2 濃度と差圧とに対応して
開閉し、煙道９内のドラフト圧力、ひいては結果的に、
前記燃焼室２の室内圧力、つまりフリュートップ圧を常
時一定圧に維持するのである。Then, as shown in FIG. 5B, the O 2 concentration d contained in the exhaust gas after combustion in the combustion chamber 2 is measured by measuring the O 2 concentration in the flue 9. In this case, the differential pressure between the reference atmospheric pressure a and the exhaust gas pressure b 2 is detected by the differential pressure measuring meter 34, and the difference is detected. The O 2 concentration is controlled so as to be constant together with the pressure, and the O 2 concentration signal e detected by the O 2 concentration measuring instrument 33 is detected.
And the differential pressure signal c detected by the differential pressure measuring instrument 34.
2 is sent to the regulator 35, and the regulator 35 opens and closes the pressure control valve 10 in accordance with the O 2 concentration and the differential pressure, so that the draft pressure in the flue 9 and, as a result,
The internal pressure of the combustion chamber 2, that is, the flutop pressure is constantly maintained at a constant pressure.
【００１６】[0016]
【発明が解決しようとする課題】従来のコークス炉設備
における炉内圧力の制御は、上記のように行なわれてお
り、この従来の場合、前記燃焼室２では、燃焼後の排ガ
ス中に含まれるＯ2 濃度が煙道９内で一定に維持される
ように制御しているために、該排ガス中でのＯ2濃度の
変動に伴って煙道９内のドラフト圧力が変動し、さら
に、該煙道９内のドラフト圧力の変動によって燃焼室２
の室内圧力、ひいてはフリュートップ圧についても変動
することになる。The control of the furnace pressure in the conventional coke oven equipment is performed as described above. In this conventional case, the combustion chamber 2 contains the exhaust gas after combustion. Since the O 2 concentration is controlled so as to be kept constant in the flue 9, the draft pressure in the flue 9 varies with the variation of the O 2 concentration in the exhaust gas. Fluctuation of draft pressure in the flue 9 causes combustion chamber 2
The indoor pressure, and eventually the flutop pressure, will also fluctuate.
【００１７】従って、このような燃焼室２での室内圧力
の変動ために、前記炭化室１の室内圧力に対して、例え
ば、フリュートップ圧が１ｍｍ〜３ｍｍＨ2 Ｏ程度以上
に低くなると、これらの炭化室１の上部と燃焼室２の上
部とを連通している前記スリップジョイント３の目地が
開いている場合、炭化室１内で発生した石炭ガスが、該
スリップジョイント３を通して燃焼室２内、ここでは、
圧力低下を生じているフリュートップ１２内に漏れ込む
ことになる。Therefore, when the flutop pressure becomes lower than the room pressure of the carbonization chamber 1 by, for example, about 1 mm to 3 mmH 2 O due to the fluctuation of the room pressure in the combustion chamber 2 as described above, these When the joint of the slip joint 3 that connects the upper part of the carbonization chamber 1 and the upper part of the combustion chamber 2 is open, the coal gas generated in the carbonization chamber 1 passes through the slip joint 3 and inside the combustion chamber 2, here,
It will leak into the flutop 12 which is causing a pressure drop.
【００１８】ここで、前記燃焼室２においては、燃焼に
必要な一定量の燃焼用ガスと燃焼用空気とを供給して完
全燃焼を行なっているのであるが、前記のようにフリュ
ートップ１２内に石炭ガスが漏れ込むことによって不完
全燃焼となり、この結果、煙突１１からは不完全燃焼の
証左としての黒煙が排出されるため、環境上好ましくは
なく、また、燃焼効率の低下をもきたすという不都合が
あった。Here, in the combustion chamber 2, a fixed amount of combustion gas and combustion air required for combustion are supplied to perform complete combustion. Incomplete combustion is caused by the coal gas leaking into the exhaust gas, and as a result, black smoke is emitted from the chimney 11 as evidence of incomplete combustion, which is not environmentally preferable and also causes a decrease in combustion efficiency. There was an inconvenience.
【００１９】本発明は、このような従来の問題点を解消
するためになされたもので、その目的とするところは、
燃焼室内に供給される一定量の燃焼用ガスと燃焼用空気
との常時完全燃焼を図って、環境上の不利及び燃焼効率
の低下を改善し得るようにしたコークス炉設備の炉内圧
力制御方法を提供することである。The present invention has been made to solve the above-mentioned conventional problems, and its purpose is to:
Method for controlling in-core pressure of coke oven facility capable of improving environmental disadvantage and reduction in combustion efficiency by always achieving complete combustion of a certain amount of combustion gas and combustion air supplied into the combustion chamber Is to provide.
【００２０】[0020]
【課題を解決するための手段】前記目的を達成するため
に、本発明に係るコークス炉設備の炉内圧力制御方法
は、炭化室の室内圧力と燃焼室のフリュートップ圧力と
の差圧が、常時一定に維持されるように圧力制御するも
のである。In order to achieve the above object, the method for controlling the internal pressure of the coke oven equipment according to the present invention is such that the differential pressure between the internal pressure of the carbonization chamber and the flutop pressure of the combustion chamber is: The pressure is controlled so that it is always maintained constant.
【００２１】ここで、本発明の発明者らは、前記煙道の
ドラフト圧力と燃焼室のフリュートップ圧力との間に ｙ＝ａｘ＋ｂ 但し、ｘ；圧力変動値 ｙ；補正値 ａ；係数 ｂ；定数 で表わせる相関関係のあることを見出した。Here, the inventors of the present invention have found that y = ax + b between the draft pressure of the flue and the flutop pressure of the combustion chamber, where x; pressure fluctuation value y; correction value a; coefficient b; We found that there is a correlation that can be expressed by a constant.
【００２２】本発明における炉内圧力制御については、
この相関関係式を適用して行なうものである。Regarding the pressure control in the furnace in the present invention,
This correlation equation is applied.
【００２３】より一層、具体的に述べると、煙道のドラ
フト圧力と燃焼室のフリュートップ圧力との間には、図
２に示すような関係がある。More specifically, the relationship between the draft pressure of the flue and the flutop pressure of the combustion chamber is as shown in FIG.
【００２４】つまり、図２では、前記図３に示すコーク
ス炉設備、この場合、複数の各炭化室１の有効容積が３
６ｍ3 のコークス炉設備において、燃焼室２の室内圧力
制御をなす煙道９のドラフト圧を該煙道９に設置された
圧力制御弁１０の開度調節によって変更すると共に、該
変更に対応したフリュートップ１２内のフリュートップ
圧の変動を測定して求めた。また、各測定点について
は、或る煙道ドラフト圧に対して任意に選択した複数の
各燃焼室２で測定した。That is, in FIG. 2, the coke oven equipment shown in FIG. 3, in this case, the effective volume of each of the plurality of carbonization chambers 1 is 3
In a coke oven facility of 6 m 3 , the draft pressure of the flue 9 that controls the indoor pressure of the combustion chamber 2 was changed by adjusting the opening degree of the pressure control valve 10 installed in the flue 9, and the change was dealt with. The variation of the flutop pressure in the flutop 12 was measured and determined. Further, each measurement point was measured in each of the plurality of combustion chambers 2 arbitrarily selected for a certain flue draft pressure.
【００２５】なお、フリュートップ圧の測定には、その
圧力測定計として、 YAMAMOTO ELECTRIC WORKS 製 TYPE WO-80 0-30mmH2O を使用し、煙道ドラフト圧力の測定には、同様に、その
圧力測定計として、 NIHON REGURETOR CO.LTD. 製 TYPE MIO.45W を使用した。For the measurement of the flu top pressure, YAMAMOTO ELECTRIC WORKS TYPE WO-80 0-30mmH 2 O was used as the pressure gauge, and the flue draft pressure was measured in the same manner. As a measuring instrument, TYPE MIO.45W manufactured by NIHON REGURETOR CO.LTD. Was used.
【００２６】即ち、本発明は、原料石炭を装入する炭化
室と、室内上部のスリップジョイントを介して前記炭化
室内に連結され、供給される燃焼用ガス及び空気を燃焼
させて該炭化室内の原料石炭を乾留処理する燃焼室と、
該燃焼室内からの燃焼排ガスを煙突に導出する煙道とを
少なくとも備えるコークス炉設備において、前記煙道内
のドラフト圧の変動に対応して、予め求めた煙道内ドラ
フト圧と前記燃焼室内フリュートップ圧との相関式か
ら、対応するフリュートップ圧を算出し、該算出された
フリュートップ圧と前記炭化室の室内圧力との差圧を制
御することを特徴とするコークス炉設備の炉内圧力制御
方法である。That is, according to the present invention, the carbonization chamber for charging the raw coal is connected to the carbonization chamber through the slip joint at the upper part of the chamber, and the supplied combustion gas and air are burned to burn the carbonization chamber. A combustion chamber for carbonization of raw coal,
In a coke oven facility including at least a flue that draws combustion exhaust gas from the combustion chamber to a chimney, a draft pressure in the flue and a flutop pressure in the combustion chamber that are obtained in advance in response to fluctuations in the draft pressure in the flue. From the correlation equation with, a corresponding flutop pressure is calculated, and the differential pressure between the calculated flutop pressure and the indoor pressure of the carbonization chamber is controlled, and a furnace pressure control method for coke oven equipment is characterized. Is.
【００２７】[0027]
【作用】従って、本発明によるコークス炉の炉内圧力制
御方法では、炭化室の室内圧力と燃焼室のフリュートッ
プ圧力との差圧が常時一定に維持される。Therefore, in the method for controlling the internal pressure of the coke oven according to the present invention, the differential pressure between the internal pressure of the carbonization chamber and the flutop pressure of the combustion chamber is always maintained constant.
【００２８】[0028]
【実施例】以下、本発明に係るコークス炉設備の炉内圧
力制御方法の実施例につき、図１を参照して詳細に説明
する。EXAMPLE An example of the method for controlling the pressure inside the coke oven equipment according to the present invention will be described in detail below with reference to FIG.
【００２９】図１は、本発明方法の一実施例を適用する
コークス炉設備の概要構成を示す断面模式図である。FIG. 1 is a schematic sectional view showing a schematic structure of coke oven equipment to which an embodiment of the method of the present invention is applied.
【００３０】この図１においても、本実施例を適用する
コークス炉設備の主要部は、先に述べた従来例の場合と
ほゞ同様に構成されている。In FIG. 1 as well, the main part of the coke oven equipment to which the present embodiment is applied is constructed in substantially the same manner as in the case of the conventional example described above.
【００３１】即ち、炭化室１内で発生する石炭ガスは、
上昇管４を経て取り出され、コレクチングメーン５から
バタフライ弁等による圧力制御弁７を配した取り出し管
路６を経て、図示しないガス精製工程に移送される。That is, the coal gas generated in the carbonization chamber 1 is
It is taken out through the ascending pipe 4, and is transferred from the collecting main 5 through a take-out pipe line 6 in which a pressure control valve 7 such as a butterfly valve is arranged to a gas purification process (not shown).
【００３２】また、前記炭化室１内にスリップジョイン
ト３を介して室内上部のフリュートップ１２を連結させ
た燃焼室２には、完全燃焼に必要な一定量の燃焼用ガス
と燃焼用空気とが供給され、その燃焼加熱によって炭化
室１内の原料石炭を乾留処理すると共に、燃焼後の排ガ
スは、蓄熱室８を介し、バタフライ弁等による圧力制御
弁１０を配した煙道９を経て、煙突１１から排出され
る。Further, in the combustion chamber 2 in which the flutop 12 at the upper part of the room is connected to the inside of the carbonization chamber 1 through the slip joint 3, a fixed amount of combustion gas and combustion air required for complete combustion are provided. The raw material coal in the carbonization chamber 1 that is supplied is subjected to carbonization treatment by the combustion heating thereof, and the exhaust gas after combustion is passed through the heat storage chamber 8 and the flue 9 where the pressure control valve 10 such as a butterfly valve is arranged, and then the chimney. It is discharged from 11.
【００３３】一方、本実施例において、前記炭化室１側
では、差圧測定計１６によって基準となる大気圧ａとコ
レクチングメーン圧ｂ1 との差圧を検出し、検出された
差圧信号ｃ1 をレギュレータ１７に送るようにし、かつ
前記燃焼室２側でも、差圧測定計１８によって基準とな
る大気圧ａとコレクチングメーン圧ｂ2 との差圧を検出
し、検出された差圧信号ｃ2 をレギュレータ１９に送る
ようにし、また別に、次に述べるように作用する信号変
換器２０を設けて構成する。On the other hand, in the present embodiment, on the side of the carbonization chamber 1, the differential pressure between the reference atmospheric pressure a and the collecting main pressure b 1 is detected by the differential pressure measuring meter 16 and the detected differential pressure signal is detected. c 1 is sent to the regulator 17, and also on the side of the combustion chamber 2, the differential pressure between the reference atmospheric pressure a and the collecting main pressure b 2 is detected by the differential pressure measuring instrument 18, and the detected differential pressure is detected. The signal c 2 is sent to the regulator 19, and a signal converter 20 which operates as described below is additionally provided.
【００３４】そして、この場合、前記図２に示した前記
煙道９のドラフト圧力と燃焼室２のフリュートップ圧力
との間における相関関係式での係数ａ及び定数ｂは、適
用するコークス炉毎に煙道ドラフト圧と燃焼室フリュー
トップ圧とを実測して得る相関式から予め求めておき、
前記信号変換器２０に対して該相関関係式を予め入力さ
せておく。In this case, the coefficient a and the constant b in the correlation equation between the draft pressure of the flue 9 and the flutop pressure of the combustion chamber 2 shown in FIG. In advance, the flue draft pressure and the combustion chamber flutop pressure are obtained in advance from a correlation equation obtained by
The correlation equation is input to the signal converter 20 in advance.
【００３５】而して、本実施例構成の場合、前記後者の
燃焼室２側では、該燃焼室２の室内圧力が、先に述べた
従来例の場合と同様に、圧力制御弁１０の開閉制御によ
って行われる。Thus, in the case of the configuration of this embodiment, on the latter combustion chamber 2 side, the internal pressure of the combustion chamber 2 is the same as in the case of the conventional example described above, and the pressure control valve 10 is opened and closed. It is done by control.
【００３６】また一方で、例えば、前記煙道９内で排ガ
ス量が減少すると、圧力制御弁１０の開き度合いに対応
して該煙道９ないのドラフト圧が変動するが、該圧力の
変動値ｘを圧力変動値信号２２として信号変換器２０に
入力させることにより、該信号変換器２０では、予め入
力されている相関関係式により、圧力変動値ｘに対応す
るフリュートップ圧の補正値ｙが算出される。On the other hand, for example, when the amount of exhaust gas in the flue 9 decreases, the draft pressure in the flue 9 varies depending on the opening degree of the pressure control valve 10. By inputting x into the signal converter 20 as the pressure fluctuation value signal 22, the correction value y of the flutop pressure corresponding to the pressure fluctuation value x is calculated in the signal converter 20 by the correlation equation inputted in advance. It is calculated.
【００３７】さらに、前記補正値ｙは、この場合、圧力
変動値ｘに対するフリュートップ圧の補正値信号２１と
して、前記前者の炭化室１側でのレギュレータ１７に対
して前記差圧信号ｃ1 と共々に送られ、該レギュレータ
１７により、フリュートップ圧が補正値ｙに対応する圧
力値となるように、もしくは炭化室１の室内圧力との差
圧が補正値ｙに対応して予め定められた圧力値となるよ
うに、圧力制御弁１７を開閉制御し、これによって該炭
化室１の室内圧力を自動的に制御させ得るのである。Further, in this case, the correction value y is the differential pressure signal c 1 to the regulator 17 on the side of the former carbonization chamber 1 as the correction value signal 21 of the flutop pressure with respect to the pressure fluctuation value x. It is sent together with the regulator 17 so that the flutop pressure becomes a pressure value corresponding to the correction value y, or the pressure difference between the flutop pressure and the room pressure of the carbonization chamber 1 is predetermined corresponding to the correction value y. The pressure control valve 17 is controlled to be opened and closed so as to obtain the pressure value, and thereby the internal pressure of the carbonization chamber 1 can be automatically controlled.
【００３８】[0038]
【発明の効果】以上、実施例によって詳述したように、
本発明によれば、原料石炭を装入する炭化室と、室内上
部のスリップジョイントを介して炭化室内に連結され、
供給される燃焼用ガス及び空気を燃焼させて炭化室内の
原料石炭を乾留処理する燃焼室と、燃焼室内からの燃焼
排ガスを煙突に導出する煙道とを少なくとも備えるコー
クス炉設備において、煙道内のドラフト圧の変動に対応
して、予め求めた煙道内ドラフト圧と燃焼室内フリュー
トップ圧との相関式から、対応するフリュートップ圧を
算出すると共に、算出されたフリュートップ圧と炭化室
の室内圧力との差圧を制御するようにしたので、煙道内
ドラフト圧の変動に拘わりなく、炭化室の室内圧力と燃
焼室のフリュートップ圧力との差圧が常時一定に維持さ
れることになり、このために炭化室から燃焼室への石炭
ガスの漏れ込みが阻止され、結果的に、燃焼室内の不完
全燃焼が改善されて、煙突からの黒煙の排出がなくなる
ばかりか、燃焼効率も向上し、同時に蓄熱室内の詰まり
もまた減少され、さらには石炭ガスの回収率も格段に向
上されるなどの優れた特長がある。As described above in detail with reference to the embodiments,
According to the present invention, a carbonization chamber for charging raw coal, and is connected to the carbonization chamber via a slip joint in the upper part of the chamber,
In a coke oven facility including at least a combustion chamber that performs a carbonization treatment of the raw coal in the carbonization chamber by burning the supplied combustion gas and air, and a flue that guides the combustion exhaust gas from the combustion chamber to the chimney, Corresponding to the fluctuation of draft pressure, the corresponding flutop pressure is calculated from the correlation equation between the flue draft pressure and the flutop pressure in the combustion chamber obtained in advance, and the calculated flutop pressure and the chamber pressure in the carbonization chamber are calculated. Since the differential pressure between and is controlled, the differential pressure between the internal pressure of the carbonization chamber and the flutop pressure of the combustion chamber is always maintained constant regardless of the fluctuation of the draft pressure in the flue. Therefore, the leakage of coal gas from the carbonization chamber to the combustion chamber is prevented, and as a result, incomplete combustion in the combustion chamber is improved and black smoke is not emitted from the chimney, but the combustion effect is also improved. Also improved is clogging of the heat storage chamber is also reduced at the same time, further it has excellent features such as recovery of coal gas is also significantly improved.
【図１】本発明に係る炉内圧力制御方法の一実施例を適
用するコークス炉設備の概要構成を示す断面模式図であ
る。FIG. 1 is a schematic sectional view showing a schematic configuration of coke oven equipment to which an embodiment of a method for controlling a pressure in a furnace according to the present invention is applied.
【図２】同上実施例方法における煙道ドラフト圧と燃焼
室フリュートップ圧との関係を示すグラフである。FIG. 2 is a graph showing the relationship between the flue draft pressure and the combustion chamber flutop pressure in the method of the above embodiment.
【図３】従来の炉内圧力制御方法によるコークス炉設備
の概要構成を示す断面模式図である。FIG. 3 is a schematic cross-sectional view showing a schematic configuration of coke oven equipment by a conventional in-furnace pressure control method.
【図４】同上従来例での炭化室の室内圧力の制御方式を
説明するための断面模式図である。FIG. 4 is a schematic cross-sectional view for explaining a method for controlling the pressure inside the carbonization chamber in the conventional example.
【図５】（ａ）、（ｂ）は、同上従来例での燃焼室の室
内圧力の制御方式を説明するためのそれぞれに断面模式
図である。5 (a) and 5 (b) are schematic cross-sectional views for explaining the control method of the internal pressure of the combustion chamber in the conventional example, respectively.
１ 炭化室 ２ 燃焼室 ３ スリップジョイント ４ 上昇管 ５ コレクチングメーン ６ 取り出し管路 ７ 圧力制御弁 ８ 蓄熱室 ９ 煙道 １０ 圧力制御弁 １１ 煙突 １２ フリュートップ １６ 差圧測定計 １７ レギュレータ １８ 差圧測定計 １９ レギュレータ ２０ 信号変換器 ２１ 補正値信号 ２２ 圧力変動値 1 Carbonization chamber 2 Combustion chamber 3 Slip joint 4 Upcomer pipe 5 Collecting main 6 Extraction pipeline 7 Pressure control valve 8 Heat storage chamber 9 Flue 10 Pressure control valve 11 Chimney 12 Fluetop 16 Differential pressure gauge 17 Regulator 18 Differential pressure measurement Total 19 Regulator 20 Signal converter 21 Correction value signal 22 Pressure fluctuation value
Claims (1)
のスリップジョイントを介して前記炭化室内に連結さ
れ、供給される燃焼用ガス及び空気を燃焼させて該炭化
室内の原料石炭を乾留処理する燃焼室と、該燃焼室内か
らの燃焼排ガスを煙突に導出する煙道とを少なくとも備
えるコークス炉設備において、 前記煙道内のドラフト圧の変動に対応して、予め求めた
煙道内ドラフト圧と前記燃焼室内フリュートップ圧との
相関式から、対応するフリュートップ圧を算出し、該算
出されたフリュートップ圧と前記炭化室の室内圧力との
差圧を制御することを特徴とするコークス炉設備の炉内
圧力制御方法。1. A carbonization chamber for charging raw coal, which is connected to the carbonization chamber via a slip joint in the upper part of the chamber and burns a combustion gas and air supplied to dry-coat the raw coal in the carbonization chamber. In a coke oven facility including at least a combustion chamber to be processed and a flue that guides combustion exhaust gas from the combustion chamber to a chimney, in response to fluctuations in the draft pressure in the flue, a pre-determined flue draft pressure and A coke oven facility characterized by calculating a corresponding flutop pressure from a correlation expression with the flutop pressure of the combustion chamber and controlling a differential pressure between the calculated flutop pressure and the chamber pressure of the carbonization chamber. Method for controlling furnace pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22961393A JP3283355B2 (en) | 1993-08-24 | 1993-08-24 | Pressure control method for coke oven equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22961393A JP3283355B2 (en) | 1993-08-24 | 1993-08-24 | Pressure control method for coke oven equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0762352A true JPH0762352A (en) | 1995-03-07 |
| JP3283355B2 JP3283355B2 (en) | 2002-05-20 |
Family
ID=16894930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22961393A Expired - Lifetime JP3283355B2 (en) | 1993-08-24 | 1993-08-24 | Pressure control method for coke oven equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3283355B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100761723B1 (en) * | 2006-06-14 | 2007-10-04 | 주식회사 포스코 | Pressure control device in coke furnace combustion chamber and its control method |
| KR100797852B1 (en) * | 2006-12-28 | 2008-01-24 | 주식회사 포스코 | How to control the flow rate of exhaust gas |
| CN101824328A (en) * | 2009-12-21 | 2010-09-08 | 西安理研工控科技有限公司 | System for controlling oxygen content of crude gas of internal thermal upright carbonization furnace |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102899056B (en) * | 2012-10-11 | 2014-02-19 | 王建平 | Vertical short type internally heated carbonization furnace for dry distillation and oil extraction of slack coal |
-
1993
- 1993-08-24 JP JP22961393A patent/JP3283355B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100761723B1 (en) * | 2006-06-14 | 2007-10-04 | 주식회사 포스코 | Pressure control device in coke furnace combustion chamber and its control method |
| KR100797852B1 (en) * | 2006-12-28 | 2008-01-24 | 주식회사 포스코 | How to control the flow rate of exhaust gas |
| CN101824328A (en) * | 2009-12-21 | 2010-09-08 | 西安理研工控科技有限公司 | System for controlling oxygen content of crude gas of internal thermal upright carbonization furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3283355B2 (en) | 2002-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4045299A (en) | Smokeless non-recovery type coke oven | |
| RU2697555C2 (en) | Improved combustion profiles for coke production | |
| CN105567262A (en) | Method and apparatus for volatile matter sharing in stamp-charged coke ovens | |
| JP2003342581A (en) | Gas combustion control method and apparatus for coke oven | |
| CN110283604A (en) | Extend the shared coking technique for reducing output rating of gas of process cycle through providing | |
| JPH0762352A (en) | Method for controlling furnace pressure in coke oven equipment | |
| RU2145695C1 (en) | Ring-shaped sectionized furnace | |
| JPH0641537A (en) | Pressure-controlling operation of carbonization chamber of coke oven | |
| JPH09310072A (en) | Coke oven furnace pressure control method | |
| KR101179679B1 (en) | Control device of inlet air flow rate for coke oven and control method thereof | |
| EP0289128A1 (en) | Furnace systems | |
| CN109580297A (en) | A coke oven flue gas detection device and detection method | |
| JP2526000B2 (en) | Measuring method of airtightness of coke oven coke chamber group and coke chamber repair method | |
| CN208547520U (en) | Coke oven smoke detection device | |
| JPH05117660A (en) | Method for controlling combustion in coke oven | |
| CN119934525B (en) | Gas mixing control device and control method for industrial burners | |
| JP2003206486A (en) | Gas burning method of coke oven | |
| JP2894127B2 (en) | Prevention device for black smoke emission from coke oven chimney | |
| CN111879136B (en) | Heating and cooling control system for carbon product baking furnace | |
| US2108610A (en) | Operation of regenerative ovens | |
| KR101175438B1 (en) | Apparatus for controlling combustion of hot stove and method thereof | |
| GB2031132A (en) | Regeneratively operated coke oven | |
| US1535026A (en) | Process for the production of zinc in reverberatory furnaces | |
| CA1080662A (en) | Smokeless non-recovery type coke oven | |
| JPH0634350Y2 (en) | In-furnace pressure regulator for coke oven |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090301 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090301 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100301 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110301 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120301 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130301 Year of fee payment: 11 |