JP2867625B2 - blast furnace - Google Patents
blast furnaceInfo
- Publication number
- JP2867625B2 JP2867625B2 JP15304890A JP15304890A JP2867625B2 JP 2867625 B2 JP2867625 B2 JP 2867625B2 JP 15304890 A JP15304890 A JP 15304890A JP 15304890 A JP15304890 A JP 15304890A JP 2867625 B2 JP2867625 B2 JP 2867625B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace body
- gas
- layer
- refractory brick
- gas passage
- 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
Links
Landscapes
- Blast Furnaces (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、溶鉱炉に関するものである。Description: TECHNICAL FIELD The present invention relates to a blast furnace.
［従来の技術］ 溶鉱炉は、耐火レンガ層の外側を外殻鉄皮で覆って成
る容器状の炉体を備えており、炉体内部に鉄鉱石等の原
料を装入すると共に炉体下部の羽口から高温のガスを送
給して溶融状の銑鉄を製造するようにしたものである。[Related Art] A blast furnace is provided with a vessel-shaped furnace body in which the outer side of a refractory brick layer is covered with an outer shell, a raw material such as iron ore is charged into the furnace body, and a lower part of the furnace body is provided. Hot gas is supplied from the tuyere to produce molten pig iron.
［発明が解決しようとする課題］ しかしながら、上記従来の溶鉱炉には、以下のような
問題があった。[Problems to be Solved by the Invention] However, the conventional blast furnace has the following problems.
即ち、炉体は内部の熱に耐え得るようにするため耐火
レンガ層を厚くしなければならないので、炉体が大型化
する。That is, the furnace body must be thick in order to withstand internal heat, so that the furnace body becomes large.
又、炉体内部の熱は耐火レンガ層及び外殻鉄皮に伝わ
って外へ逃げてしまうので、エネルギーが有効に利用さ
れない。Further, heat inside the furnace body is transmitted to the refractory brick layer and the outer shell and escapes to the outside, so that energy is not effectively used.
本発明は、上述の実情に鑑み、炉体の大型化を抑制し
且つエネルギーを有効に利用し得るようにした溶鉱炉を
提供することを目的とするものである。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a blast furnace capable of suppressing an increase in the size of a furnace body and effectively using energy.
［課題を解決するための手段］ 本発明は、耐火レンガ層の外側を外殻鉄皮で覆って成
る容器状の炉体を備えた溶鉱炉において、前記耐火レン
ガ層の内部にガス通路を形成し、該ガス通路の内壁の少
なくとも一部分にガス通路に沿って伸びる多孔質材を取
り付けてしみ出し冷却層を形成し、該しみ出し冷却層に
冷却水を供給するしみ出し用配管を接続したことを特徴
とする溶鉱炉にかかるものである。[Means for Solving the Problems] The present invention relates to a blast furnace having a container-shaped furnace body in which the outside of a refractory brick layer is covered with an outer shell, wherein a gas passage is formed inside the refractory brick layer. Attaching a porous material extending along the gas passage to at least a part of the inner wall of the gas passage to form a seepage cooling layer, and connecting a seepage pipe for supplying cooling water to the seepage cooling layer. It is related to the blast furnace.
［作用］ 本発明によれば、耐火レンガ層の内部では次のような
ことが行なわれる。[Operation] According to the present invention, the following is performed inside the refractory brick layer.
即ち、しみ出し用配管からしみ出し冷却層に冷却水を
供給すると、冷却水は毛管現象によって多孔質材から成
るしみ出し冷却層にしみ広がり、更に、冷却水は炉体内
部から耐火レンガ層に伝わった熱によってしみ出し冷却
層から蒸発し、ガス通路に沿って流れていく。That is, when cooling water is supplied to the exuding cooling layer from the exuding pipe, the cooling water permeates the exuding cooling layer made of a porous material by capillary action, and further, the cooling water flows from the inside of the furnace body to the refractory brick layer. The transmitted heat exudes from the cooling layer, evaporates, and flows along the gas passage.
この時、耐火レンガ層の熱が冷却水の蒸発熱として奪
われ、炉体は冷却される。At this time, the heat of the refractory brick layer is taken as the heat of evaporation of the cooling water, and the furnace body is cooled.
このように、炉体は冷却水の蒸発によって冷却される
ので、耐火レンガ層を薄くしても炉体内部の熱に耐える
ことができるようになり、且つ、得られた蒸気を利用す
ることにより炉体内部から耐火レンガ層に逃げた熱エネ
ルギーの有効利用が図れるようになる。Thus, since the furnace body is cooled by evaporation of the cooling water, even if the refractory brick layer is thinned, it becomes possible to withstand the heat inside the furnace body, and by utilizing the obtained steam. Effective use of thermal energy that escaped from the furnace body to the refractory brick layer can be achieved.
［実 施 例］ 以下、本発明の実施例を図面を参照しつつ説明する。[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.
第１図・第２図は、本発明の一実施例である。 1 and 2 show one embodiment of the present invention.
耐火レンガ１を多層化して耐火レンガ層２を形成し、
耐火レンガ層２の外側を外殻鉄皮３で覆って容器状の炉
体４を形成する。The refractory brick 1 is multilayered to form the refractory brick layer 2,
The outside of the refractory brick layer 2 is covered with an outer shell 3 to form a furnace-shaped furnace body 4.
前記耐火レンガ層２の内部に、炉体内部５を包囲する
よう、略周方向及び上下方向に伸びるガス通路６を形成
する。Inside the refractory brick layer 2, a gas passage 6 extending substantially in a circumferential direction and a vertical direction is formed so as to surround the furnace body interior 5.
尚、ガス通路６は耐火レンガ１の組合せを工夫するこ
とにより保持させ得るようにしておく。It should be noted that the gas passage 6 can be held by devising a combination of the refractory bricks 1.
ガス通路６内壁の炉体内部５側の部分にガス通路６に
沿って耐熱性の多孔質材７を取り付けてしみ出し冷却層
８を形成する。A heat-resistant porous material 7 is attached to the inner wall of the gas passage 6 on the inner side of the furnace body 5 along the gas passage 6 to exude and form a cooling layer 8.
該しみ出し冷却層８内部上下方向に向け、水タンク９
の冷却水10を給水ポンプ11を介して送給するしみ出し用
配管12の複数に分岐した先端を炉体４の周方向に適宜の
間隔を置いて挿入配置し、しみ出し用配管12の先端に上
下方向に適宜の間隔を置いて冷却水しみ出し孔13を形成
する。The water tank 9 is directed upward and downward inside the seepage cooling layer 8.
A plurality of extruded ends of the exuding pipe 12 for supplying the cooling water 10 through the water supply pump 11 are inserted and arranged at appropriate intervals in the circumferential direction of the furnace body 4, and the extremities of the exuding pipe 12 are arranged. The cooling water seepage holes 13 are formed at appropriate intervals in the vertical direction.
又、ガス通路６内壁の外殻鉄皮３側の部分にガス通路
６に沿ってカーボンレンガ14を取り付けて水性ガス発生
層15を形成する。A water gas generating layer 15 is formed by attaching a carbon brick 14 to the inner wall of the gas passage 6 on the side of the outer shell 3 along the gas passage 6.
ガス通路６の上端に気液捕集管16を介して気液分離器
17を接続し、気液分離器17にガス送給管18を介して水素
精製触媒19及び貯溜タンク20を接続し、又、気液分離器
17を液戻り配管21を介して前記水タンク９に接続する。A gas-liquid separator is provided at the upper end of the gas passage 6 via a gas-liquid collecting pipe 16.
17 and a hydrogen purification catalyst 19 and a storage tank 20 connected to the gas-liquid separator 17 via a gas supply pipe 18.
17 is connected to the water tank 9 via a liquid return pipe 21.
尚、22は炉体４を保持している溶鉱炉本体、23は蒸
気、24は水性ガス、25は水素ガスである。Reference numeral 22 denotes a blast furnace main body holding the furnace body 4, 23 denotes steam, 24 denotes water gas, and 25 denotes hydrogen gas.
次に、作用について説明する。 Next, the operation will be described.
炉体内部５に鉄鉱石等の原料を装入すると共に炉体４
下部の図示しない羽口から高温のガスを送給して溶融状
の銑鉄の製造を行なう。A raw material such as iron ore is charged into the furnace body 5 and the furnace body 4 is charged.
A high-temperature gas is supplied from a tuyere (not shown) at the lower part to produce molten pig iron.
この際、耐火レンガ層２の内部で次のようなことを行
なわせる。At this time, the following is performed inside the refractory brick layer 2.
即ち、給水ポンプ11を駆動し水タンク９の冷却水10を
しみ出し用配管12からしみ出し冷却層８に供給する。That is, the water supply pump 11 is driven so that the cooling water 10 in the water tank 9 is exuded from the exuding pipe 12 and supplied to the cooling layer 8.
すると冷却水10は、しみ出し用配管12先端に上下方向
に適宜の間隔を置いて形成した冷却水しみ出し孔13から
毛管現象によって多孔質材７のしみ出し冷却層８全体に
しみ広がり、更に、炉体内部５から耐火レンガ層２に伝
わった熱によってしみ出し冷却層８から蒸発する。Then, the cooling water 10 spreads over the entire exuding cooling layer 8 of the porous material 7 by a capillary phenomenon from a cooling water exuding hole 13 formed at an appropriate interval in the vertical direction at the tip of the exuding pipe 12, and furthermore. Then, the heat is transferred from the furnace body interior 5 to the refractory brick layer 2 and exudes from the cooling layer 8.
この時、耐火レンガ層２の熱は冷却水10の蒸発熱とし
て奪われ、炉体４が冷却される。At this time, the heat of the refractory brick layer 2 is taken off as the heat of evaporation of the cooling water 10, and the furnace body 4 is cooled.
このように、炉体４で冷却水10の蒸発によって冷却さ
れるので、耐火レンガ層２を薄くしても炉体内部５の熱
に耐えることができるようになり、炉体４の大型化を抑
制することができる。As described above, since the cooling water 10 is cooled by the evaporation of the cooling water 10 in the furnace body 4, even if the refractory brick layer 2 is thinned, it is possible to withstand the heat of the furnace body interior 5, and the furnace body 4 can be enlarged. Can be suppressed.
又、冷却水10の蒸発によって炉体４の冷却を行なって
いるので、少ない冷却水10でも効率的な冷却を行なうこ
とができる。Further, since the furnace body 4 is cooled by evaporating the cooling water 10, efficient cooling can be performed even with a small amount of the cooling water 10.
そして、炉体内部５の熱によってしみ出し冷却層８か
ら蒸発した高温の蒸気23は、ガス通路６を上方に流れて
行き、途中、水性ガス発生層15のカーボンレンガ14と反
応してCO,CO2,CH4等の成分を含む可燃性の水性ガス24と
成る。Then, the high-temperature steam 23 oozed out by the heat of the furnace body 5 and evaporated from the cooling layer 8 flows upward in the gas passage 6, and reacts with the carbon bricks 14 of the water gas generating layer 15 on the way to produce CO, It becomes a flammable water gas 24 containing components such as CO 2 and CH 4 .
該水性ガス24は、ガス通路６の上端から気液捕集管16
を介して気液分離器17に集められ、気液分離器17で蒸気
23の凝縮分を分離されてガス送給管18から水素精製触媒
19へ送られ、一方、分離された蒸気23の凝縮分は液戻り
配管21を介して水タンク９に戻される。The water gas 24 flows from the upper end of the gas passage 6 to the gas-liquid collecting pipe 16.
Collected in the gas-liquid separator 17 via the
The hydrogen condensate is separated from the gas supply pipe 18 and the hydrogen purification catalyst
The condensed portion of the separated steam 23 is returned to the water tank 9 via the liquid return pipe 21.
水素精製触媒19へ送られた水性ガス24は水素精製触媒
19で水素ガス25と炭酸ガスに変化され、このうち水素ガ
ス25が貯溜タンク20に送られて貯蔵される。The water gas 24 sent to the hydrogen purification catalyst 19 is a hydrogen purification catalyst.
At 19, the gas is changed to hydrogen gas 25 and carbon dioxide gas, of which the hydrogen gas 25 is sent to the storage tank 20 and stored.
このように、炉体内部５から耐火レンガ層２に伝わっ
た熱によって蒸気23を発生させ、該蒸気23を基にして水
性ガス24を作り、更に水性ガス24を水素ガス25とするこ
とにより、炉体内部５から耐火レンガ層２に逃げた熱エ
ネルギーの有効利用が図れるようになる。As described above, the steam 23 is generated by the heat transmitted from the furnace body interior 5 to the refractory brick layer 2, the water gas 24 is formed based on the steam 23, and the water gas 24 is further converted into the hydrogen gas 25. Effective use of the thermal energy escaping from the furnace body 5 to the refractory brick layer 2 can be achieved.
尚、本発明は、上述の実施例にのみ限定されるもので
はなく、しみ出し冷却層８はガス通路６の外殻鉄皮３側
に設けても良いこと、ガス通路６の形状は螺旋状として
も上下方向に伸びる複数の孔状としてもその他の形状と
しても良いこと、蒸気23は水性ガス24の発生以外の用途
に用いても良いこと、蒸気23を水性ガス24の発生に用い
る場合にカーボンレンガ14を耐火レンガ層２と多孔質材
７との間に設けても良いこと、カーボンレンガ14をガス
通路６に設ける代りに炉体４外部にコークスの槽を設け
て蒸気23をコークスの層に通して水性ガス24を発生させ
るようにしても良いこと、その他、本発明の要旨を逸脱
しない範囲内において種々変更を加え得ることは勿論で
ある。The present invention is not limited only to the above-described embodiment. The seepage cooling layer 8 may be provided on the outer shell 3 side of the gas passage 6, and the shape of the gas passage 6 is spiral. It may be a plurality of holes extending in the vertical direction as well as other shapes, the steam 23 may be used for purposes other than the generation of the water gas 24, and when the steam 23 is used for the generation of the water gas 24 The carbon brick 14 may be provided between the refractory brick layer 2 and the porous material 7. Instead of providing the carbon brick 14 in the gas passage 6, a coke tank is provided outside the furnace body 4 and steam 23 is supplied to the coke. Of course, the water gas 24 may be generated through the layer, and it is needless to say that various changes can be made without departing from the gist of the present invention.
［発明の効果］ 以上説明したように、本発明の溶鉱炉によれば下記の
ごとき優れた効果を奏し得る。[Effects of the Invention] As described above, according to the blast furnace of the present invention, the following excellent effects can be obtained.
炉体は冷却水の蒸発によって冷却されるので、耐火
レンガ層を薄くしても内部の熱に耐えることができるよ
うになり、その分だけ炉体の大型化を抑制することがで
きる。Since the furnace body is cooled by evaporating the cooling water, even if the refractory brick layer is made thinner, it can withstand the internal heat, and the size of the furnace body can be suppressed by that much.
炉体を冷却水の蒸発によって冷却したときに得られ
る蒸気を利用することにより炉体内部から耐火レンガ層
に逃げた熱エネルギーの有効利用が図れるようになる。By utilizing the steam obtained when the furnace body is cooled by evaporation of the cooling water, the thermal energy escaping from the inside of the furnace body to the refractory brick layer can be effectively used.
第１図は本発明の一実施例の一部破断した全体側面図、
第２図は第１図のII部分の拡大図である。 図中１は耐火レンガ、２は耐火レンガ層、３は外殻鉄
皮、４は炉体、５は炉体内部、６はガス通路、７は多孔
質材、８はしみ出し冷却層、10は冷却水、12はしみ出し
用配管、22は溶鉱炉本体を示す。FIG. 1 is a partially cutaway side view of an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion II in FIG. In the figure, 1 is a refractory brick, 2 is a refractory brick layer, 3 is an outer shell, 4 is a furnace body, 5 is a furnace body, 6 is a gas passage, 7 is a porous material, 8 is an exuding cooling layer, 10 Denotes cooling water, 12 is a bleeding pipe, and 22 is a blast furnace main body.
Claims (1)
る容器状の炉体を備えた溶鉱炉において、前記耐火レン
ガ層の内部にガス通路を形成し、該ガス通路の内壁の少
なくとも一部分にガス通路に沿って伸びる多孔質材を取
り付けてしみ出し冷却層を形成し、該しみ出し冷却層に
冷却水を供給するしみ出し用配管を接続したことを特徴
とする溶鉱炉。In a blast furnace provided with a vessel-shaped furnace body in which the outside of a refractory brick layer is covered with an outer shell, a gas passage is formed inside the refractory brick layer, and at least an inner wall of the gas passage is formed. A blast furnace characterized in that a oozing cooling layer is formed by attaching a porous material extending along a gas passage to a part thereof, and an oozing pipe for supplying cooling water is connected to the oozing cooling layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15304890A JP2867625B2 (en) | 1990-06-12 | 1990-06-12 | blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15304890A JP2867625B2 (en) | 1990-06-12 | 1990-06-12 | blast furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0445212A JPH0445212A (en) | 1992-02-14 |
| JP2867625B2 true JP2867625B2 (en) | 1999-03-08 |
Family
ID=15553840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15304890A Expired - Fee Related JP2867625B2 (en) | 1990-06-12 | 1990-06-12 | blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2867625B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR9806126A (en) * | 1997-08-28 | 1999-08-31 | Dainippon Printing Co Ltd | Thermally insulating container, production and assembly apparatus for combining a glove on an outer periphery of a cup, glove forming and rib processing to process a rib on a side wall of a cup body, and process for forming a rib on a side wall of a glass body |
| JP6252294B2 (en) * | 2014-03-26 | 2017-12-27 | 新日鐵住金株式会社 | Stave cooler cooling device and cooling method |
-
1990
- 1990-06-12 JP JP15304890A patent/JP2867625B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0445212A (en) | 1992-02-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5420426B2 (en) | Gasification reaction vessel with internal multi-tube wall and multiple burners | |
| JP5394255B2 (en) | Gasification reactor | |
| CS266234B1 (en) | Device for the gasification of coal dust | |
| JP2867625B2 (en) | blast furnace | |
| CN208182926U (en) | High-efficiency and energy-saving gasifier | |
| KR860000354A (en) | Carbon Vaporization | |
| JPS62260701A (en) | Raw material reforming apparatus | |
| ITMI941717A1 (en) | DEVICE AND PROCEDURE FOR THERMALLY DISPOSAL OF WASTE | |
| US3372917A (en) | Apparatus for recovery of converter off-gases | |
| CN213060758U (en) | Gasification furnace for ash-free carbon-separating substance | |
| JPS6246184A (en) | Baking furnace for continuously manufacturing long-sized carbon article | |
| US5149509A (en) | Apparatus for a catalytic reaction of a gas mixture, which contains h2s and so2, by the claus process | |
| CN202081149U (en) | Heating furnace wall structure with vaporization cooling wall | |
| CN201201953Y (en) | Fused state reduction furnace for producing molten iron | |
| CN203559023U (en) | Gasification furnace with steam drum | |
| SU1694198A1 (en) | Device for melting metals accompanied by gas evolution | |
| CN2212590Y (en) | Gas generator | |
| CN212016761U (en) | Environment-friendly waste oil regeneration distillation device | |
| ITTO930623A1 (en) | METALLURGICAL CONTAINER EQUIPPED WITH COATING COOLING. | |
| SU910784A1 (en) | Tuyere | |
| SU410094A1 (en) | ||
| US4004895A (en) | Coal reactor | |
| JPH0562554U (en) | Coal gasifier | |
| JPS6159372B2 (en) | ||
| US2631135A (en) | Apparatus and method for producing a gas atmosphere |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071225 Year of fee payment: 9 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 9 Free format text: PAYMENT UNTIL: 20071225 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071225 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081225 Year of fee payment: 10 |
|
| LAPS | Cancellation because of no payment of annual fees |