JPH07216357A - Method for compacting coal for charge into coke oven and apparatus therefor - Google Patents
Method for compacting coal for charge into coke oven and apparatus thereforInfo
- Publication number
- JPH07216357A JPH07216357A JP789794A JP789794A JPH07216357A JP H07216357 A JPH07216357 A JP H07216357A JP 789794 A JP789794 A JP 789794A JP 789794 A JP789794 A JP 789794A JP H07216357 A JPH07216357 A JP H07216357A
- Authority
- JP
- Japan
- Prior art keywords
- coal
- layer
- leveler
- coke oven
- charged
- 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.)
- Withdrawn
Links
Landscapes
- Coke Industry (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、コークス炉の炭化室に
装入した石炭層の上部石炭を均し、且つ、圧密化に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the leveling and consolidation of the upper coal in a coal bed charged in the carbonization chamber of a coke oven.
【0002】[0002]
【従来の技術】コークス炉において、得られたコークス
の密度を高め、しかも、そのバラツキを少なくするため
に、原料石炭の装入末期に、装入石炭層の上にレベラー
に取り付けたローラを押し当てて往復運動させている。2. Description of the Related Art In a coke oven, in order to increase the density of the coke obtained and to reduce the dispersion of the coke, a roller attached to a leveler is pushed on the coal bed at the end of charging the raw coal. It hits and reciprocates.
【0003】従来から、この装入原料石炭灰の圧密化
を、効率的に、しかも、全面にわたって均質に行うため
の方策が種々提案されている。Conventionally, various measures have been proposed for efficiently and uniformly compacting the charged raw material coal ash.
【0004】例えば、特開昭60−15487号公報に
は、レベラーを往復運動の度毎に圧接ローラー高さを調
節して、炉巾方向の中央部の嵩密度を増大させることが
記載され、また、特開平4−170494号公報には、
装入原料の石炭を装入前に加圧ローラーで圧密して、任
意の位置より落下させ、炉高方向の嵩密度を均一化する
ことが開示されている。For example, Japanese Unexamined Patent Publication No. 60-15487 discloses that the leveler of the pressure contact roller is adjusted every time the leveler reciprocates to increase the bulk density of the central portion in the width direction of the furnace. Further, in Japanese Patent Laid-Open No. 4-170494,
It is disclosed that coal as a charging raw material is compacted by a pressure roller before charging and dropped from an arbitrary position to make the bulk density in the furnace height direction uniform.
【0005】[0005]
【発明が解決しようとする課題】しかしながら、何れの
場合も、押圧ローラによって表面層が圧密化されても、
装入石炭に随伴した大気のために、加熱による大気の膨
張によって装入石炭の内部から復圧し、圧密状態が破壊
されてしまう。However, in any case, even if the surface layer is compacted by the pressing roller,
Due to the atmosphere associated with the charged coal, the expansion of the atmosphere due to heating restores the pressure from the inside of the charged coal and destroys the consolidated state.
【0006】本発明の目的は、コークス炉の炭化室への
装入原料石炭に含まれた大気による復圧を防止でき、し
かも、充分な面圧を装入石炭の上面層に付与できる手段
を提供することにある。An object of the present invention is to provide a means for preventing a recompression pressure due to the atmosphere contained in the raw material coal charged into the carbonization chamber of the coke oven, and moreover, providing a sufficient surface pressure to the upper layer of the charged coal. To provide.
【0007】[0007]
【課題を解決するための手段】本発明は、コークス炉炭
化室に石炭を装入した後、レベラーを炭化室内に挿入し
て装入石炭を均す装入石炭の圧密化方法において、装入
石炭の上面層に凸凹の圧密化層を形成することを特徴と
する。DISCLOSURE OF THE INVENTION The present invention provides a method for consolidating charged coal, which comprises charging a coal in a coke oven carbonizing chamber and then inserting a leveler into the carbonizing chamber to level the charged coal. It is characterized in that an uneven consolidation layer is formed on the upper surface layer of coal.
【0008】この凹凸の巾、深さは、レベラー寸法,装
入石炭性状等の状態にもよるが従来実施されている石炭
の均し動作中の、レベラーの前後進方向に条溝を形成し
た凹凸条であることが、凹凸の圧密化層形成精度向上、
乾留促進投資コスト削減の点から好ましい。The width and depth of the unevenness depend on the leveler size, the properties of the charged coal, etc., but a groove was formed in the forward / backward direction of the leveler during the conventional leveling operation of coal. The uneven line improves the accuracy of forming the consolidating layer for unevenness,
It is preferable from the viewpoint of reducing the cost of dry distillation promotion investment.
【0009】この凸凹の圧密化層を形成するための装置
として、コークス炉炭化室に装入した石炭の上面から押
圧して、上面を均すと共に圧密化層を形成するためのレ
ベラー装置に、その往復運動によって凸凹条の圧密化層
を形成する回転体を設けた装置を使用できる。As an apparatus for forming the uneven consolidating layer, a leveler apparatus for pressing the upper surface of the coal charged in the coke oven carbonization chamber to level the upper surface and to form the consolidating layer, It is possible to use a device provided with a rotating body that forms the consolidation layer of the uneven strips by the reciprocating motion.
【0010】ローラ表面の凸凹の配置に当たっては、巾
方向では限定されないが、長さ方向では圧密後の石炭が
掻き採られないように配慮する必要がある。The arrangement of the irregularities on the roller surface is not limited in the width direction, but it is necessary to take care so that coal after consolidation is not scraped in the length direction.
【0011】回転によって装入石炭層の上方層を加圧
し、且つ、凹凸状を形成するためには種々の形状のロー
ラを使用できるが、円周方向に突部を形成した算盤の球
を連続して配置したようなロール構造、また、ローラの
軸方向の断面に凹凸面を形成した構造とするのが、従来
のレベラーによる均し作業の操作手順を変える必要がな
く効果的である。Rollers of various shapes can be used to press the upper layer of the charged coal layer by rotation and to form irregularities, but a ball of an abacus having a protrusion formed in the circumferential direction is continuous. It is effective to use a roll structure such as the above-described arrangement, or a structure in which a concavo-convex surface is formed on the axial section of the roller without changing the operation procedure of the conventional leveling operation by the leveler.
【0012】[0012]
【作用】装入石炭の上層に押圧凹凸面を形成するので、
凸部で圧密、凹部で排気機能を形成し、石炭層に内蔵さ
れた大気が放出され易くなり、大気の膨張による復圧が
防止されて、圧密化された状態は、そのまま維持でき
る。[Function] Since the pressing uneven surface is formed on the upper layer of the charged coal,
The convex portion forms the consolidation and the concave portion forms the exhaust function, the atmosphere contained in the coal layer is easily released, the recompression due to the expansion of the atmosphere is prevented, and the consolidated state can be maintained as it is.
【0013】表面に回転方向に形成された押圧ロールの
凸部によって、その部分の石炭層への面圧は増大し、全
体としての圧密化が増大する。Due to the convex portion of the pressure roll formed on the surface in the rotational direction, the surface pressure on the coal layer at that portion increases, and the overall consolidation increases.
【0014】その凸部の先端角は60度〜150度にす
ると前述の理由から望ましい結果が得られる。When the tip angle of the convex portion is 60 to 150 degrees, a desirable result is obtained for the above reason.
【0015】更に、60度未満では、石炭への面圧作用
方向が本来目標の垂直方向から水平方向へ移動し、圧密
範囲が狭くなり、かつ、石炭凸部が脆弱化し、その結
果、充分な圧密効果が得られず、一方、150度を越え
ると石炭への面圧作用方向は本来目標の垂直方向に集中
するものの石炭層に内蔵された大気が放出されにくくな
り(排気機能低下)、充分な圧密効果が得られない。Further, if it is less than 60 degrees, the direction of the surface pressure acting on the coal originally moves from the target vertical direction to the horizontal direction, the compaction range is narrowed, and the convex portion of the coal is weakened. The consolidation effect cannot be obtained. On the other hand, when the temperature exceeds 150 degrees, the surface pressure acting direction on the coal originally concentrates in the vertical direction of the target, but the atmosphere contained in the coal bed becomes difficult to be released (exhaust function declines). Can not be obtained the consolidation effect.
【0016】この理由から凸部の先端角は90度〜11
0度がより好ましい。For this reason, the tip angle of the convex portion is 90 degrees to 11 degrees.
0 degree is more preferable.
【0017】[0017]
【実施例】図1は、本発明を実施したコークス炉の炭化
室の概要を示す側面図である。EXAMPLE FIG. 1 is a side view showing the outline of a carbonization chamber of a coke oven in which the present invention is carried out.
【0018】同図において、1はコークス炉の炭化室を
示し、同炭化室1の上方に開口する複数の装入口2か
ら、石炭装入車3からの原料石炭が装入され、石炭層を
形成する。4は石炭乾留に際して発生するガスの放出の
ための上昇管を示す。その上昇管4の下方位置にはレベ
ラーの挿入口5が設けられており、石炭装入後期にその
挿入口5から押出機6に取り付けられたレベラー7が積
層石炭層8の上面を前後進して石炭層8の表面を均す。
レベラー7の先端下面には圧密化のための凹凸面形成の
ための凹凸形成用のローラ9が2連に設けられており、
これによって、積層石炭層8の上面には圧密化された凹
凸条81がレベラー7の前後進方向に形成される。In the figure, reference numeral 1 denotes a carbonization chamber of a coke oven, and raw coal from a coal charging vehicle 3 is charged through a plurality of charging ports 2 opening above the carbonization chamber 1 to form a coal layer. Form. Reference numeral 4 represents an ascending pipe for releasing gas generated during coal carbonization. A leveler insertion port 5 is provided below the ascending pipe 4, and a leveler 7 attached to the extruder 6 from the insertion port 5 is moved forward and backward on the upper surface of the laminated coal layer 8 at the latter stage of coal charging. Flatten the surface of the coal layer 8.
On the lower surface of the tip of the leveler 7, two rollers 9 for forming unevenness for forming an uneven surface for consolidation are provided.
As a result, compacted uneven ridges 81 are formed on the upper surface of the laminated coal layer 8 in the forward / backward direction of the leveler 7.
【0019】図2および図3は、レベラー7に取り付け
られた凹凸形成用のローラ9を平面から見た形状例を示
す。2 and 3 show examples of the shape of the roller 9 for forming the unevenness, which is attached to the leveler 7, as seen from a plane.
【0020】図2は、凹凸形成用のローラ9の例とし
て、円周方向に突部を形成した算盤の球を連続して配置
したようなロール構造を示す。FIG. 2 shows, as an example of the roller 9 for forming irregularities, a roll structure in which spheres of an abacus having protrusions formed in the circumferential direction are continuously arranged.
【0021】この算盤球状ローラ10は、前方に3列、
後方に2列が配列され、圧密化された凹部列の間隔が密
になるように形成されている。この凹凸形成のための算
盤球状ローラーの凸部の先端角θは、圧密化と石炭層内
のガス放出に影響し、その凸部の先端角θは90度の場
合に優れた圧密化の深さが得られた。同一の炉での同一
の積層石炭に、同一径のロールにおいて、この凹凸面を
形成しない押圧ロールを用いて圧密化処理を行ったとこ
ろ、図2に示す場合、圧密化の層は、通常の平坦ロール
が平均で略30mmであったのに対して、本発明の場合
は、42mmの深さに圧密化が行われた。また、先端角
90度以上110度以下及び、この角度範囲を除く60
度から150度についても実施した結果、90度〜11
0度、60度〜150度の順に良好であった。This abacus spherical roller 10 has three rows in front,
Two rows are arranged in the rear, and the intervals of the row of the recessed portions, which have been consolidated, are formed to be close. The tip angle θ of the convex portion of the abacus spherical roller for forming the unevenness affects the consolidation and the gas release in the coal layer, and when the tip angle θ of the convex portion is 90 degrees, the excellent consolidation depth is obtained. Was obtained. When the same laminated coal in the same furnace was subjected to the consolidation treatment using a roll having the same diameter and using this pressure roll that does not form the uneven surface, in the case shown in FIG. Whereas the flat roll averaged about 30 mm, in the case of the present invention, consolidation was performed to a depth of 42 mm. Also, the tip angle is 90 degrees or more and 110 degrees or less, and this angle range is excluded 60
As a result of conducting from 150 degrees to 150 degrees, 90 degrees to 11 degrees
It was good in the order of 0 degree and 60 degrees to 150 degrees.
【0022】図3は、凹凸形成用のローラ9の例とし
て、通常のレベラーの押圧ロールに平坦な山と谷を有す
るローラ11の例を示す。FIG. 3 shows, as an example of the roller 9 for forming the unevenness, an example of a roller 11 having flat peaks and troughs on a normal leveler pressing roll.
【0023】その他、装入原料石炭層に凹凸条を形成す
るロールに代わって、ロール表面にスパイク状あるいは
疣状の凹凸を形成しても、ある程度の効果は期待でき
る。In addition, in place of the roll for forming the ridges and valleys in the raw coal layer for charging, spike-like or wart-like ridges and valleys may be formed on the roll surface, and some effects can be expected.
【0024】[0024]
【発明の効果】本発明によって以下の効果を奏する。The present invention has the following effects.
【0025】(1) ロールによる最大加圧部が交互に
形成され、また、表面積も増大するので、石炭の装入時
に付随して導入される大気の放出が充分に行われ、圧密
化の深さと均一化が達成される。(1) Since the maximum pressure portions by the rolls are alternately formed and the surface area is also increased, the atmosphere introduced accompanying coal charging is sufficiently released, and the deepening of consolidation is achieved. And uniformity is achieved.
【0026】(2)したがって、装入原料石炭の上部層
の圧密化の達成により、石炭粉の粒子間距離が短縮さ
れ、乾留時の上部石炭の軟化溶融性が向上し、コークス
品質、特に強度を向上できる。(2) Therefore, by achieving the consolidation of the upper layer of the charging raw material coal, the distance between the particles of the coal powder is shortened, the softening and melting property of the upper coal during carbonization is improved, and the coke quality, especially the strength, is improved. Can be improved.
【0027】(3)装置そのものは単純な構造であるの
で、従来のコークス炉の構造を変更することなく、良質
のコークスが得られる。(3) Since the apparatus itself has a simple structure, good quality coke can be obtained without changing the structure of the conventional coke oven.
【図1】 本発明の装置を配置したコークス炉の炭化室
の構造を示す。FIG. 1 shows a structure of a carbonization chamber of a coke oven in which the apparatus of the present invention is arranged.
【図2】 加圧ロールの一つの形状の実施例を示す。FIG. 2 shows an example of one shape of a pressure roll.
【図3】 加圧ロールの他の実施例を示す。FIG. 3 shows another embodiment of a pressure roll.
1 コークス炉の炭化室 2 石炭装入口 3 石炭装入車 4 上昇管 5 レベラーの挿入口 6 押出機 7 レベラー 8 積層石炭層 81 積層石炭層の上層圧密化層 9 押圧ローラ 10 算盤球状ローラ 11 凹凸ローラ 1 Coke oven carbonization chamber 2 Coal charging port 3 Coal charging vehicle 4 Ascending pipe 5 Leveler insertion port 6 Extruder 7 Leveler 8 Laminated coal layer 81 Upper layer consolidation layer of laminated coal layer 9 Pressing roller 10 Abacus spherical roller 11 Unevenness roller
Claims (2)
レベラーを炭化室内に挿入して装入石炭を均す装入石炭
の圧密化方法において、装入石炭の上面層に凸凹の圧密
化層を形成するコークス炉への装入石炭の圧密化方法。1. After charging coal into a coke oven carbonization chamber,
A method for consolidating charged coal by leveling the charged coal by inserting a leveler into the coking chamber, wherein the charged coal is compacted into a coke oven by forming an uneven consolidating layer on the upper surface layer of the charged coal.
から押圧して、上面を均すと共に圧密化層を形成するた
めの装置において、装入石炭との接触面に凸凹形成用回
転体を設けたコークス炉への装入石炭の圧密化装置。2. In an apparatus for pressing the coal charged in a coke oven carbonization chamber from the upper surface to level the upper surface and to form a consolidation layer, a rotor for forming irregularities on a contact surface with the charged coal. A device for consolidating coal charged into a coke oven equipped with.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP789794A JPH07216357A (en) | 1994-01-27 | 1994-01-27 | Method for compacting coal for charge into coke oven and apparatus therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP789794A JPH07216357A (en) | 1994-01-27 | 1994-01-27 | Method for compacting coal for charge into coke oven and apparatus therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH07216357A true JPH07216357A (en) | 1995-08-15 |
Family
ID=11678377
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP789794A Withdrawn JPH07216357A (en) | 1994-01-27 | 1994-01-27 | Method for compacting coal for charge into coke oven and apparatus therefor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH07216357A (en) |
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-
1994
- 1994-01-27 JP JP789794A patent/JPH07216357A/en not_active Withdrawn
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