JP2010222414A - Method for hot repair of coke oven - Google Patents

Method for hot repair of coke oven Download PDF

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JP2010222414A
JP2010222414A JP2009068780A JP2009068780A JP2010222414A JP 2010222414 A JP2010222414 A JP 2010222414A JP 2009068780 A JP2009068780 A JP 2009068780A JP 2009068780 A JP2009068780 A JP 2009068780A JP 2010222414 A JP2010222414 A JP 2010222414A
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brick
new
bricks
forming
coke oven
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JP5347614B2 (en
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Takuya Tomooka
卓也 友岡
Takeshi Shimohata
武 下畑
Hidenori Yamaguchi
英則 山口
Koji Shigeyasu
浩治 重安
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JFE Steel Corp
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JFE Steel Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for hot repair of a coke oven comprising replacing, among many bricks constituting the body of the coke oven, flue-forming bricks, carbonization chamber wall-forming bricks located at both ends of the flue-forming bricks in the width direction of the oven, and combustion chamber-forming bricks facing a backstay with new ones, wherein the wall of the carbonization chamber replaced with new bricks is prevented from inwardly protruding. <P>SOLUTION: The coke oven is hot repaired by filling shrinkable mortar 33 between the wall 24 of a carbonization chamber replaced with new bricks and the wall 25 of a carbonization chamber not replaced with new bricks, and further by filling shrinkable mortar 33 between a combustion chamber-forming bricks with new bricks 23 and a backstay 20. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、室炉式コークス炉などのコークス炉を熱間で補修する方法に関する。   The present invention relates to a method for hot repairing a coke oven such as a chamber type coke oven.

一般に、室炉式コークス炉は、図８に示すように、複数の炭化室１１と燃焼室１２を蓄熱室１３の上部に有している。これらの炭化室１１及び燃焼室１２は蓄熱室１３の上部に交互に形成されており、各炭化室１１の天井部には、複数の装炭口１４が開設されている。これらの装炭口１４はコークス炉の炉上を走行する装炭車１５により運ばれた石炭を炭化室１１に装入するためのものであり、装炭口１４から炭化室１１に装入された石炭は燃焼室１２からの熱を受けて乾留し、赤熱コークスとなって炭化室１１から押出機１６によって押し出されるようになっている。そして、押出機１６により炭化室１１から押し出された赤熱コークスは、ガイド車１７を経て消火車１８に受け渡され、この消火車１８により不図示の赤熱コークス消火設備へ輸送されるようになっている。   In general, the chamber-type coke oven has a plurality of carbonization chambers 11 and combustion chambers 12 in the upper part of the heat storage chamber 13 as shown in FIG. These carbonization chambers 11 and combustion chambers 12 are alternately formed in the upper part of the heat storage chamber 13, and a plurality of coal charging ports 14 are opened in the ceiling portion of each carbonization chamber 11. These coal charging ports 14 are for charging the coal carried by the charcoal vehicle 15 running on the coke oven into the carbonizing chamber 11, and were charged into the carbonizing chamber 11 from the coal charging port 14. Coal receives heat from the combustion chamber 12 and dry-distills to become red-hot coke and is extruded from the carbonization chamber 11 by the extruder 16. And the red hot coke extruded from the carbonization chamber 11 by the extruder 16 is delivered to the fire extinguisher 18 through the guide wheel 17, and is transported by this fire extinguisher 18 to the red hot coke fire extinguishing equipment (not shown). Yes.

炭化室１１、燃焼室１２及び蓄熱室１３は多数の煉瓦で構築されており、燃焼室１２の内部には、図９に示すように、複数のフリュー（垂直焔道）１９が炭化室１１及び燃焼室１２の配列方向と直交する方向（炉長方向）に沿って形成されている。また、炭化室１１は押出機１６の押出ラム１６ａ（図８参照）が挿入される窯口と赤熱コークスが押し出される窯口とを有しており、これら窯口の近傍には、Ｈ形鋼などからなるバックステー２０（図９参照）が炉壁の変形や倒壊を防止する目的で立設されている。   The carbonization chamber 11, the combustion chamber 12, and the heat storage chamber 13 are constructed of a large number of bricks. Inside the combustion chamber 12, as shown in FIG. It is formed along a direction (furnace length direction) orthogonal to the arrangement direction of the combustion chambers 12. The carbonization chamber 11 has a kiln opening into which an extrusion ram 16a (see FIG. 8) of the extruder 16 is inserted and a kiln opening into which red hot coke is pushed out. A backstay 20 (see FIG. 9) is erected for the purpose of preventing deformation and collapse of the furnace wall.

このようなコークス炉では、炭化室１１の炭化室壁を形成する炭化室壁形成煉瓦が炭化室１１から押し出されるコークスとの摩擦などによって著しく損耗すると、炭化室１１からコークスを押し出すことが不能になったりすることがある。そこで、従来では、損耗の著しい炭化室壁形成煉瓦を新煉瓦に積替えてコークス炉の補修を熱間で行なっている（例えば、特許文献１及び特許文献２参照）。   In such a coke oven, when the carbonization chamber wall-forming brick forming the carbonization chamber wall of the carbonization chamber 11 is significantly worn by friction with the coke extruded from the carbonization chamber 11, it becomes impossible to extrude the coke from the carbonization chamber 11. Sometimes it becomes. Therefore, conventionally, the coke oven is repaired hot by replacing the bricks forming the carbonization chamber wall, which are markedly worn, with new bricks (see, for example, Patent Document 1 and Patent Document 2).

特開２００１−２６７８１号公報（第２頁右欄３９行〜第３頁左欄３行）JP 2001-26781 A (page 2, right column, line 39 to page 3, left column, line 3) 特開平９−３０２３５２号公報（第２頁左欄３５行〜４４行）JP-A-9-302352 (page 2, left column, lines 35 to 44)

しかしながら、コークス炉の炉体を形成する多数の煉瓦のうち図９に斜線で示す部分の煉瓦、すなわちフリュー１９を形成するフリュー形成煉瓦２１、フリュー形成煉瓦２１の炉幅方向（「炉団方向」とも言う。）両端側に配置された炭化室壁形成煉瓦２２、バックステー２０に対向して配置された燃焼室形成煉瓦２３を新煉瓦に積替えると、これらの煉瓦２１，２２，２３がコークス炉の炉長方向に熱膨張することによって、例えば図１０に示すように、新煉瓦に積替えられた炭化室壁２４が新煉瓦に積替えられていない炭化室壁２５よりも炭化室１１の内側に突き出てしまい、炭化室１１からコークスを押し出すことが不能になるおそれがあった。   However, among the many bricks forming the furnace body of the coke oven, the bricks in the hatched portion in FIG. 9, that is, the flue forming brick 21 forming the flue 19 and the furnace width direction of the flue forming brick 21 (“furnace group direction”). When the carbonization chamber wall-forming bricks 22 arranged at both ends and the combustion chamber-forming bricks 23 arranged facing the backstay 20 are replaced with new bricks, the bricks 21, 22, and 23 are coke. By thermally expanding in the furnace length direction of the furnace, for example, as shown in FIG. 10, the carbonization chamber wall 24 loaded into the new brick is located inside the carbonization chamber 11 more than the carbonization chamber wall 25 not loaded into the new brick. There was a possibility that the coke could not be pushed out from the carbonization chamber 11 due to the protrusion.

本発明は上述した問題点に着目してなされたものであり、コークス炉の炉体を形成する多数の煉瓦のうちフリューを形成するフリュー形成煉瓦、フリュー形成煉瓦の炉幅方向両端側に配置された炭化室壁形成煉瓦、バックステーに対向して配置された燃焼室形成煉瓦を新煉瓦に積替えてコークス炉を熱間補修するときに新煉瓦に積替えられた炭化室壁が炭化室の内側に突き出てしまうことを防止することのできるコークス炉の熱間補修方法を提供することを目的とするものである。   The present invention has been made paying attention to the above-mentioned problems, and among the many bricks forming the furnace body of the coke oven, flue-forming bricks that form flues are arranged at both ends of the flue-forming bricks in the furnace width direction. When the coke oven is hot repaired by replacing the combustion chamber forming brick placed opposite to the backstay with the new brick and the coke oven is hot repaired, the wall of the carbonization chamber is placed inside the carbonization chamber. It is an object of the present invention to provide a hot repair method for a coke oven that can prevent protrusion.

上記課題を解決するため、請求項１の発明に係るコークス炉の熱間補修方法は、コークス炉の炉体を形成する多数の煉瓦のうち前記コークス炉の燃焼室内にフリューを形成するフリュー形成煉瓦と、前記フリュー形成煉瓦の炉幅方向両端側に配置された炭化室壁形成煉瓦と、前記コークス炉のバックステーに対向して配置された燃焼室形成煉瓦とを新煉瓦に積替えて前記コークス炉を熱間補修するに際して、前記新煉瓦に積替えられた炭化室壁と前記新煉瓦に積替えられていない炭化室壁との間に可縮性モルタルを充填するとともに、前記新煉瓦の燃焼室形成煉瓦と前記バックステーとの間に可縮性モルタルを充填して前記コークス炉を熱間補修するようにしたことを特徴とするものである。   In order to solve the above-mentioned problem, a hot repair method for a coke oven according to the invention of claim 1 is the flue forming brick for forming a flue in the combustion chamber of the coke oven among a large number of bricks forming the furnace body of the coke oven. The coke oven by replacing the carbonization chamber wall-forming bricks arranged at both ends of the flue-forming brick in the furnace width direction and the combustion chamber-forming bricks arranged facing the back stay of the coke oven with new bricks. In the hot repair, the contractible mortar is filled between the carbonization chamber wall transposed to the new brick and the carbonization chamber wall not transposed to the new brick, and the combustion brick forming brick of the new brick The coke oven is hot repaired by filling a contractible mortar between the back stay and the backstay.

請求項２の発明に係るコークス炉の熱間補修方法は、請求項１記載のコークス炉の熱間補修方法において、前記新煉瓦に積替えるに当り、新煉瓦施工範囲を前記フリュー形成煉瓦の炉幅方向両端側で左右対称となるように積替えるとともに、前記新煉瓦に積替えられた炭化室壁と前記新煉瓦に積替えられていない炭化室壁との間および前記新煉瓦の燃焼室形成煉瓦と前記バックステーとの間に可縮性モルタルを充填して前記コークス炉を熱間補修するようにしたことを特徴とするものである。   The hot repair method for a coke oven according to the invention of claim 2 is the hot repair method for a coke oven according to claim 1, wherein when a new brick is transferred to the new brick, the construction area of the new brick is changed to the furnace for the flue-forming brick. Transshipment so as to be bilaterally symmetrical at both ends in the width direction, and between the carbonization chamber wall transposed to the new brick and the carbonization chamber wall not transshipped to the new brick, and the combustion chamber forming brick of the new brick The coke oven is hot repaired by filling a contractible mortar between the backstay and the backstay.

請求項１の発明に係るコークス炉の熱間補修方法では、新煉瓦に積替えられた炭化室壁と新煉瓦に積替えられていない炭化室壁との間に可縮性モルタルを充填するとともに、新煉瓦の燃焼室形成煉瓦とバックステーとの間に可縮性モルタルを充填してコークス炉を熱間補修するようにしたことにより、新煉瓦に積替えられたフリュー形成煉瓦、炭化室壁形成煉瓦、燃焼室形成煉瓦の炉長方向の熱的膨張が可縮性モルタルによって吸収される。したがって、コークス炉の炉体を形成する多数の煉瓦のうちフリューを形成するフリュー形成煉瓦、フリュー形成煉瓦の炉幅方向両端側に配置された炭化室壁形成煉瓦、バックステーに対向して配置された燃焼室形成煉瓦を新煉瓦に積替えてコークス炉を熱間補修するときに新煉瓦に積替えられた炭化室壁が炭化室の内側に突き出てしまうことを防止することができる。   In the hot repair method for a coke oven according to the invention of claim 1, the coking furnace wall filled with the new brick and the carbonization chamber wall not loaded with the new brick are filled with the contractible mortar, By filling the coke oven with hot shrinkable mortar between the brick combustion chamber forming brick and the backstay and repairing the coke oven hotly, the flue forming bricks transposed to the new bricks, the carbonization chamber wall forming bricks, The thermal expansion of the combustion chamber forming brick in the furnace length direction is absorbed by the contractible mortar. Therefore, among the many bricks forming the furnace body of the coke oven, the flue-forming bricks that form the flue, the carbonization chamber wall-forming bricks that are arranged at both ends of the flue-forming brick in the furnace width direction, and the backstay are arranged. It is possible to prevent the carbonization chamber wall transferred to the new brick from protruding into the inside of the carbonization chamber when the combustion chamber forming brick is replaced with the new brick and the coke oven is hot repaired.

請求項２の発明に係るコークス炉の熱間補修方法では、新煉瓦に積替えられた炭化室壁と新煉瓦に積替えられていない炭化室壁との間に可縮性モルタルをフリュー形成煉瓦の炉幅方向両端側で左右対称となるように充填するとともに、新煉瓦の燃焼室形成煉瓦とバックステーとの間に可縮性モルタルを充填してコークス炉を熱間補修するようにしたことにより、可縮性モルタルが充填される隙間の大きさをフリュー形成煉瓦の炉幅方向両端側で同じ大きさに設定して新煉瓦の積替えを行なうことができる。したがって、可縮性モルタルが充填される隙間の大きさをフリュー形成煉瓦の炉幅方向両端側で異なる値に設定した場合と比較して、新煉瓦の積替えを容易に行なうことができる。また、左右対称となるように新煉瓦を積替えるため、不均一熱膨張による積替部分の崩壊がない。   In the hot repair method for a coke oven according to the invention of claim 2, a shrinkable mortar is placed between a carbonization chamber wall that has been reloaded with new bricks and a carbonization chamber wall that has not been reloaded with new bricks. By filling it so that it is symmetrical on both sides in the width direction, and filling the shrinkable mortar between the bricks forming the combustion chamber of the new brick and the backstay and hot repairing the coke oven, The size of the gap filled with the contractible mortar can be set to the same size at both ends of the flue-formed brick in the furnace width direction, and the new brick can be transshipped. Therefore, compared with the case where the size of the gap filled with the compressible mortar is set to a different value at both ends of the flue-formed brick in the furnace width direction, the transshipment of the new brick can be easily performed. In addition, since the new bricks are transshipped so as to be symmetrical, there is no collapse of the transshipment portion due to non-uniform thermal expansion.

本発明の一実施形態に係るコークス炉の熱間補修方法を説明するための図で、炭化室床面上に複数個の断熱ブロックを炭化室の天井近くまで積み重ねた状態を示す図である。It is a figure for demonstrating the hot repair method of the coke oven which concerns on one Embodiment of this invention, and is a figure which shows the state which accumulated the some heat insulation block on the coking chamber floor surface to the ceiling vicinity of the coking chamber. 図１のＡ−Ａ断面を示す図である。It is a figure which shows the AA cross section of FIG. 本発明の一実施形態に係るコークス炉の熱間補修方法を説明するための図で、煉瓦の積替えを行なう炭化室壁と対面する炭化室壁にマット状の断熱材を貼り付けた状態を示す図である。It is a figure for demonstrating the hot repair method of the coke oven which concerns on one Embodiment of this invention, and shows the state which affixed the mat-like heat insulating material on the carbonization chamber wall which faces the carbonization chamber wall which transships a brick FIG. 図３のＢ−Ｂ断面を示す図である。It is a figure which shows the BB cross section of FIG. 本発明の一実施形態に係るコークス炉の熱間補修方法を説明するための図で、断熱材より厚さの薄い断熱ボードにより断熱材の表面を覆った状態を示す図である。It is a figure for demonstrating the hot repair method of the coke oven which concerns on one Embodiment of this invention, and is a figure which shows the state which covered the surface of the heat insulating material with the heat insulation board thinner than a heat insulating material. 図５のＣ−Ｃ断面を示す図である。It is a figure which shows CC cross section of FIG. 本発明の一実施形態に係るコークス炉の熱間補修方法を説明するための図で、炭化室壁形成煉瓦の新旧間および新煉瓦の燃焼室形成煉瓦とバックステーとの間に可縮性モルタルを充填した状態を示す図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram for explaining a hot repair method for a coke oven according to an embodiment of the present invention, in which a shrinkable mortar is used between a new and old carbonization wall forming brick and between a combustion chamber forming brick and a backstay of a new brick. It is a figure which shows the state which filled. 室炉式コークス炉の概略構成を示す図である。It is a figure which shows schematic structure of a chamber furnace type coke oven. 室炉式コークス炉の炭化室と燃焼室の水平断面を示す図である。It is a figure which shows the horizontal cross section of the carbonization chamber and combustion chamber of a chamber furnace type coke oven. 新煉瓦に積替えられた炭化室壁形成煉瓦が炭化室の内側に突き出た状態を示す図である。It is a figure which shows the state which the carbonization chamber wall formation brick transposed to the new brick protruded inside the carbonization chamber. 旧煉瓦を一部残して新煉瓦に積替えられた炭化室壁形成煉瓦が炭化室の内側に突き出た状態を示す図である。It is a figure which shows the state which the carbonization chamber wall formation brick which left some old bricks and was replaced by the new brick protruded inside the carbonization chamber.

図１〜図７は本発明の一実施形態に係るコークス炉の熱間補修方法を説明するための図であり、本発明の一実施形態に係るコークス炉の熱間補修方法では、先ず、図１及び図２に示すように、燃焼室１２の両側に形成された二つの炭化室１１の内部に幅が例えば６００ｍｍ、長さが例えば９０００ｍｍの断熱シート２６を装炭口１４から吊り下げて炭化室１１の内部を補修側と非補修側とに仕切った後、断熱シート２６により仕切られた補修側の炭化室床面上に例えば幅：４００ｍｍ、奥行き：３００ｍｍ、高さ：３００ｍｍの断熱ブロック２７を炭化室１１の天井近くまで積み重ねる。   1-7 is a figure for demonstrating the hot repair method of the coke oven which concerns on one Embodiment of this invention, First, in the hot repair method of the coke oven which concerns on one embodiment of this invention, FIG. As shown in FIG. 1 and FIG. 2, a heat insulating sheet 26 having a width of, for example, 600 mm and a length of, for example, 9000 mm is suspended from the coal inlet 14 inside the two carbonization chambers 11 formed on both sides of the combustion chamber 12. After partitioning the interior of the chamber 11 into a repair side and a non-repair side, a heat insulation block 27 having, for example, a width: 400 mm, a depth: 300 mm, and a height: 300 mm on the repair side carbonization chamber floor partitioned by the heat insulating sheet 26. Are stacked near the ceiling of the carbonization chamber 11.

次に、図３及び図４に示すように、煉瓦の積替えが行なわれる炭化室壁と対面する炭化室壁にセラミックファイバーを基材とし、厚さが約２５ｍｍのマット状断熱材２８をモルタルにより貼り付けた後、補修すべき炭化室１１の近傍に位置するバックステー２０に複数本のサポート部材２９を溶接接合し、これらのサポート部材２９を断熱材２８の表面側に水平に且つ互いに平行に配置する。そして、図５及び図６に示すように、バックステー２０に溶接接合された各サポート部材２９の間に、断熱材２８より厚さの薄い複数枚の断熱ボード３０、例えばシート状に形成された断熱層（厚さが約１０ｍｍのマイクロサーム（商品名））３１の表面側と裏面側に金網層３２を有する複数枚の断熱ボード３０を炭化室窯口から挿入し、これらの断熱ボード３０により断熱材２８の表面を覆う。   Next, as shown in FIG. 3 and FIG. 4, a mat-like heat insulating material 28 having a thickness of about 25 mm is formed with mortar on the carbonization chamber wall facing the carbonization chamber wall where the bricks are transshipped. After pasting, a plurality of support members 29 are welded and joined to the backstay 20 located in the vicinity of the carbonizing chamber 11 to be repaired, and these support members 29 are horizontally parallel to each other on the surface side of the heat insulating material 28. Deploy. As shown in FIGS. 5 and 6, a plurality of heat insulating boards 30 having a thickness smaller than the heat insulating material 28, for example, a sheet shape, are formed between the support members 29 welded to the backstay 20. A plurality of heat insulation boards 30 having wire mesh layers 32 on the front side and back side of a heat insulation layer (microtherm (trade name) having a thickness of about 10 mm) 31 are inserted from the carbonization chamber kiln. The surface of the heat insulating material 28 is covered.

このようにして炭化室１１の内部に断熱施工を施したならば、図５に斜線で示す部分の煉瓦、すなわちフリュー１９を形成するフリュー形成煉瓦２１、フリュー形成煉瓦２１の炉幅方向両端側に配置された炭化室壁形成煉瓦２２、バックステー２０に対向して配置された燃焼室形成煉瓦２３を新煉瓦に積替えてコークス炉を熱間補修する。
このとき、図７に示すように、新煉瓦に積替えられた炭化室壁２４と新煉瓦に積替えられていない炭化室壁２５との間に可縮性モルタル、すなわち加熱時に収縮する可縮性モルタル（例えば日本特殊炉材（株）製パーマタイト（商品名））３３をフリュー形成煉瓦２１の炉幅方向両端側で左右対称となるように充填するとともに、新煉瓦の燃焼室形成煉瓦２３とバックステー２０との間に可縮性モルタル３３を充填してコークス炉を熱間補修する。なお、新煉瓦同士の間は珪石煉瓦目地用モルタルを使用する。 If heat insulation is applied to the inside of the carbonization chamber 11 in this way, the bricks in the hatched portion in FIG. 5, that is, the flue-forming brick 21 that forms the flue 19 and the flue-forming brick 21 at both ends in the furnace width direction. The coking oven wall repair brick 22 and the combustion chamber formation brick 23 disposed to face the backstay 20 are replaced with new bricks to hot repair the coke oven.
At this time, as shown in FIG. 7, a contractible mortar that contracts when heated, that is, a contractible mortar between the carbonization chamber wall 24 that is reloaded with new brick and the carbonization chamber wall 25 that is not reloaded with new brick. (For example, Nippon Special Furnace Co., Ltd. Permite (trade name)) 33 is filled so as to be symmetrical on both ends of the flue-forming brick 21 in the furnace width direction, and the new brick combustion chamber-forming brick 23 and the back The coke oven is hot repaired by filling the contractible mortar 33 with the stay 20. In addition, mortar for silica brick joints is used between new bricks.

上述のように、新煉瓦に積替えられた炭化室壁２４と新煉瓦に積替えられていない炭化室壁２５との間に可縮性モルタル３３を充填するとともに、新煉瓦の燃焼室形成煉瓦２３とバックステー２０との間に可縮性モルタル３３を充填すると、新煉瓦に積替えられたフリュー形成煉瓦２１、炭化室壁形成煉瓦２２、燃焼室形成煉瓦２３の炉長方向の熱的膨張が可縮性モルタル３３によって吸収される。したがって、コークス炉の炉体を形成する多数の煉瓦のうちフリュー１９を形成するフリュー形成煉瓦２１、フリュー形成煉瓦２１の炉幅方向両端側に配置された炭化室壁形成煉瓦２２、バックステー２０に対向して配置された燃焼室形成煉瓦２３を新煉瓦に積替えてコークス炉を熱間補修するときに新煉瓦に積替えられた炭化室壁２４が炭化室１１の内側に突き出てしまうことを防止することができる。   As described above, the shrinkable mortar 33 is filled between the carbonization chamber wall 24 transposed to the new brick and the carbonization chamber wall 25 not transposed to the new brick, and the combustion chamber forming brick 23 of the new brick is When the compressible mortar 33 is filled with the backstay 20, the thermal expansion in the furnace length direction of the flue-forming brick 21, the carbonization chamber wall-forming brick 22, and the combustion chamber-forming brick 23, which are replaced with new bricks, is contractible. It is absorbed by the sex mortar 33. Therefore, among the many bricks forming the furnace body of the coke oven, the flue-forming brick 21 that forms the flue 19, the carbonization chamber wall-forming brick 22 disposed on both ends of the flue-forming brick 21 in the furnace width direction, and the backstay 20 When the coking chamber forming bricks 23 arranged opposite to each other are replaced with new bricks and the coke oven is repaired hot, the carbonization chamber wall 24 transferred to the new bricks is prevented from protruding inside the carbonizing chamber 11. be able to.

また、新煉瓦に積替えられた炭化室壁２４と新煉瓦に積替えられていない炭化室壁２５との間に可縮性モルタル３３を使用しても、新煉瓦に積替に当り、図１１に示すように煉瓦積替範囲内に新煉瓦（ハッチングした２１，２２，２３を例とする。）と旧煉瓦（ハッチングのない２２を例とする。）が混在している場合、新・旧煉瓦の熱的膨張に起因して崩壊することがある。従って、フリュー形成煉瓦２１の炉幅、炉長方向両端側で左右対称となるように積替え施工し、可縮性モルタル３３が充填される隙間の大きさをフリュー形成煉瓦２１の炉幅方向両端側で同じ大きさに設定して新煉瓦の積替えを行なうと確実に崩壊を阻止することができる。   Moreover, even if the shrinkable mortar 33 is used between the carbonization chamber wall 24 that has been transshipped with new bricks and the carbonization chamber wall 25 that has not been transshipped with new bricks, the new bricks will be transshipped, as shown in FIG. As shown, if new bricks (for example, 21, 22, 23 with hatching) and old bricks (for example, 22 without hatching) are mixed in the brick transshipment range, new and old bricks May collapse due to thermal expansion of Therefore, transshipment is performed so that the furnace width of the flue-forming brick 21 is symmetrical on both ends in the furnace width direction, and the size of the gap filled with the compressible mortar 33 is set to both ends of the flue-forming brick 21 in the furnace width direction. If you set the same size in and replace the new brick, you can surely prevent the collapse.

上述した本発明の一実施形態では、新煉瓦に積替えられた炭化室壁２４と新煉瓦に積替えられていない炭化室壁２５との間に可縮性モルタル３３をフリュー形成煉瓦２１の炉幅方向両端側で左右対称となるように充填したが、新煉瓦に積替えられた炭化室壁２４と新煉瓦に積替えられていない炭化室壁２５との間に可縮性モルタル３３をフリュー形成煉瓦２１の炉幅方向両端側で左右非対称となるように充填してもよい。
また、上述した本発明の一実施形態では、本発明を室炉式コークス炉に適用した場合について説明したが、室炉式以外の他の型式のコークス炉についても本発明を適用できることは言うまでもない。 In the above-described embodiment of the present invention, the contractible mortar 33 is placed between the carbonization chamber wall 24 loaded with new bricks and the carbonization chamber wall 25 not loaded with new bricks in the furnace width direction of the flue-formed brick 21. Although it is filled so as to be symmetrical on both ends, a contractible mortar 33 is placed between the carbonization chamber wall 24 that has been reloaded with new bricks and the carbonization chamber wall 25 that has not been reloaded with new bricks. You may fill so that it may become left-right asymmetrical in the furnace width direction both ends.
Moreover, in the above-described embodiment of the present invention, the case where the present invention is applied to a chamber furnace type coke oven has been described. However, it goes without saying that the present invention can be applied to other types of coke ovens other than the chamber furnace type. .

１１ 炭化室
１２ 燃焼室
１３ 蓄熱室
１４ 装炭口
１５ 装炭車
１６ 押出機
１６ａ 押出ラム
１７ ガイド車
１８ 消火車
１９ フリュー
２０ バックステー
２１ フリュー形成煉瓦
２２ 炭化室壁形成煉瓦
２３ 燃焼室形成煉瓦
２４ 新煉瓦に積替えられた炭化室壁
２５ 新煉瓦に積替えられていない炭化室壁
２６ 断熱シート
２７ 断熱ブロック
２８ 断熱材
２９ サポート部材
３０ 断熱ボード
３１ 断熱層
３２ 金網層
３３ 可縮性モルタル DESCRIPTION OF SYMBOLS 11 Carbonization chamber 12 Combustion chamber 13 Heat storage chamber 14 Charging port 15 Charcoal vehicle 16 Extruder 16a Extrusion ram 17 Guide wheel 18 Fire extinguisher 19 Flue 20 Backstay 21 Flue forming brick 22 Charging chamber wall forming brick 23 Combustion chamber forming brick 24 New Carbonization chamber wall transposed to brick 25 Carbonization chamber wall not transposed to new brick 26 Thermal insulation sheet 27 Thermal insulation block 28 Thermal insulation material 29 Support member 30 Thermal insulation board 31 Thermal insulation layer 32 Wire mesh layer 33 Retractable mortar

Claims (2)

コークス炉の炉体を形成する多数の煉瓦のうち前記コークス炉の燃焼室内にフリューを形成するフリュー形成煉瓦と、前記フリュー形成煉瓦の炉幅方向両端側に配置された炭化室壁形成煉瓦と、前記コークス炉のバックステーに対向して配置された燃焼室形成煉瓦とを新煉瓦に積替えて前記コークス炉を熱間補修するに際して、
前記新煉瓦に積替えられた炭化室壁と前記新煉瓦に積替えられていない炭化室壁との間に可縮性モルタルを充填するとともに、前記新煉瓦の燃焼室形成煉瓦と前記バックステーとの間に可縮性モルタルを充填して前記コークス炉を熱間補修するようにしたことを特徴とするコークス炉の熱間補修方法。 Among a large number of bricks forming a furnace body of a coke oven, a flue-forming brick that forms a flue in the combustion chamber of the coke oven, a carbonization chamber wall-forming brick disposed on both ends of the flue-forming brick in the furnace width direction, When hot-repairing the coke oven by transferring the combustion chamber forming bricks arranged facing the back stay of the coke oven to new bricks,
Between the carbonization chamber wall transposed to the new brick and the carbonization chamber wall not transshipped to the new brick, a compressible mortar is filled, and between the combustion chamber forming brick of the new brick and the backstay A coke oven hot repair method, wherein the coke oven is hot repaired by filling a contractible mortar. 前記新煉瓦に積替えるに当り、新煉瓦施工範囲を前記フリュー形成煉瓦の炉幅方向両端側で左右対称となるように積替えるとともに、前記新煉瓦に積替えられた炭化室壁と前記新煉瓦に積替えられていない炭化室壁との間および前記新煉瓦の燃焼室形成煉瓦と前記バックステーとの間に可縮性モルタルを充填して前記コークス炉を熱間補修するようにしたことを特徴とする請求項１記載のコークス炉の熱間補修方法。   In transshipment with the new brick, the new brick construction range is translocated so that it is symmetrical on both ends of the flue-forming brick in the furnace width direction, and the carbonization chamber wall and the new brick are transposed to the new brick. The coke oven is hot repaired by filling a contractible mortar between the carbonization chamber wall that is not transshipped and between the combustion chamber forming brick of the new brick and the backstay. A hot repair method for a coke oven according to claim 1.
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JP2018083881A (en) * 2016-11-22 2018-05-31 黒崎播磨株式会社 Method of repairing coke oven and patching refractory material
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Publication number Priority date Publication date Assignee Title
CN102851040A (en) * 2012-08-14 2013-01-02 宣化钢铁集团有限责任公司 Method for repairing fusion holes in wall of carbonization chamber without cooling
JP2014091764A (en) * 2012-11-01 2014-05-19 Jfe Steel Corp Method for repairing coke oven by partial replacement
CN103512361A (en) * 2013-09-13 2014-01-15 楚雄滇中有色金属有限责任公司 Furnace brick patching method of oxygen enrichment top-blown copper metallurgical furnace
CN106032469A (en) * 2015-03-11 2016-10-19 五冶集团上海有限公司 Coke oven regenerative chamber checker brick on-line replacing method
KR20190064688A (en) * 2015-03-30 2019-06-10 제이에프이 스틸 가부시키가이샤 Method for building coke oven
KR102122191B1 (en) 2015-03-30 2020-06-12 제이에프이 스틸 가부시키가이샤 Method for building coke oven
JP2018083881A (en) * 2016-11-22 2018-05-31 黒崎播磨株式会社 Method of repairing coke oven and patching refractory material
CN109628109A (en) * 2018-12-28 2019-04-16 中国冶集团有限公司 Heat recovery coke oven assembled encircles tire and its construction method

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