JPH033723B2 - - Google Patents
Info
- Publication number
- JPH033723B2 JPH033723B2 JP20838785A JP20838785A JPH033723B2 JP H033723 B2 JPH033723 B2 JP H033723B2 JP 20838785 A JP20838785 A JP 20838785A JP 20838785 A JP20838785 A JP 20838785A JP H033723 B2 JPH033723 B2 JP H033723B2
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- furnace
- hot water
- runner
- gas
- 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
Links
- 239000002184 metal Substances 0.000 claims description 33
- 229910052751 metal Inorganic materials 0.000 claims description 33
- 239000007789 gas Substances 0.000 description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 238000007670 refining Methods 0.000 description 9
- 238000010079 rubber tapping Methods 0.000 description 7
- 238000007664 blowing Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 229910000805 Pig iron Inorganic materials 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 239000011449 brick Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/56—Manufacture of steel by other methods
- C21C5/567—Manufacture of steel by other methods operating in a continuous way
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0075—Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Furnace Charging Or Discharging (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、製鉄用の各種炉において、炉本体
を傾動させることなく炉内の溶銑、あるいは熔鋼
（以下、溶湯という）の排出を可能にした高温溶
融金属用炉に関する。[Detailed Description of the Invention] (Field of Industrial Application) This invention makes it possible to discharge molten pig iron or molten steel (hereinafter referred to as molten metal) from various types of furnaces for iron-making without tilting the furnace body. This invention relates to a furnace for high-temperature molten metal.
（従来技術）
精錬炉等においては、炉内からの溶湯の排出に
は、通常、炉本体を傾動させることによつて炉壁
上部に開設した出湯口から排出する手法が採用さ
れている。(Prior Art) In a refining furnace or the like, a method is generally adopted for discharging molten metal from the inside of the furnace by tilting the furnace body and discharging the molten metal from a tap opening provided in the upper part of the furnace wall.
（発明が解決しようとする問題点）
然るに、貯鉄炉等、大量の溶湯を貯溜する炉に
おいては、炉本体傾動機構が設備全体の構成を左
右するとともに、費用としても大きな部分を占め
ることから、炉本体を傾動をさせないで出湯が出
来ないものかとの潜在ニーズがある。(Problems to be Solved by the Invention) However, in a furnace that stores a large amount of molten metal, such as an iron storage furnace, the tilting mechanism of the furnace body not only affects the configuration of the entire equipment, but also accounts for a large part of the cost. There is a latent need for something that can tap water without tilting the furnace body.
また、従来のバツチ炉においては、原料装入→
加熱・精錬→出湯を各ヒート毎に行うことから、
上記の如き出湯法で充分であるが、連続製鋼等、
近時開発が進めされてる連続精錬プロセスにおい
ては、精錬を行いつつ連続的に、若しくは任意に
出湯がなし得る出湯法、および出湯口の開発が求
められている。 In addition, in conventional batch furnaces, raw material charging→
Because heating, refining and tapping are performed for each heat,
The tapping method as described above is sufficient, but continuous steel manufacturing, etc.
In the continuous refining process that is being developed in recent years, there is a need for the development of a tapping method and a tapping port that allow hot water to be tapped continuously or arbitrarily while refining.
この発明は上記の点に鑑みなされたものであつ
て、炉本体を傾動させることなく、正立状態の下
に炉内からの溶湯を排出可能にした高温溶融金属
用炉を提供することを目的とする。 This invention was made in view of the above points, and an object of the present invention is to provide a furnace for high-temperature molten metal that can discharge molten metal from inside the furnace in an upright position without tilting the furnace body. shall be.
（問題点を解決するための手段）
上記の目的を達成するため、この発明の要旨と
するところは、炉本体の炉底部に連通させ、且つ
上向き揚湯部を有し、炉外に開口する出湯口が炉
内溶湯面より常に高い位置を採る湯道を付設し、
該湯道の上向き揚湯部下部に気泡発生手段を設け
たことを特徴とする高温溶融金属用炉にある。(Means for Solving the Problems) In order to achieve the above object, the gist of the present invention is to communicate with the bottom of the furnace body, have an upwardly directed hot water raising part, and open to the outside of the furnace. A runner is installed in which the outlet is always located higher than the surface of the molten metal in the furnace.
The furnace for high-temperature molten metal is characterized in that a bubble generating means is provided at the lower part of the upwardly-facing molten metal runner.
（実施例）
以下、この発明の実施例を図面に基づいて説明
する。(Example) Hereinafter, an example of the present invention will be described based on the drawings.
第１図はこの発明を貯銑炉に適用した実施例の
概略構成図である。 FIG. 1 is a schematic diagram of an embodiment in which the present invention is applied to a pig iron storage furnace.
図において、１は炉本体を示し、内面は耐火物
でライニングされ、上部に受湯口２を有する。 In the figure, reference numeral 1 indicates a furnace body, the inner surface of which is lined with a refractory material, and has a receiving port 2 at the top.
３は炉本体１に付設した湯道で、その基端開口
３ａは炉底部に通じ、中間部では揚湯管４によつ
て上向き揚湯部３ｂが形成され、該揚湯管４の上
端に外部に開放状とする出湯樋５を連結して出湯
口３ｃを形成している。 Reference numeral 3 denotes a runner attached to the furnace body 1, the base end opening 3a of which communicates with the bottom of the furnace, and an upward molten metal raising part 3b formed in the middle part by a molten metal raising pipe 4; A tap water outlet 3c is formed by connecting tap taps 5 which are open to the outside.
６は上記湯道３において、揚湯管４の下部に設
けたガス吹込口で、ガスの気泡化を図るためにポ
ーラスレンガ等の気泡化部材７を内装しており、
外部ガス供給装置（図示せず）に接続される。 Reference numeral 6 denotes a gas inlet provided at the lower part of the hot water supply pipe 4 in the runner 3, which is equipped with a foaming member 7 such as a porous brick in order to foam the gas.
Connected to an external gas supply (not shown).
（作用） 上記構成において、次に作用を説明する。(effect) In the above configuration, the operation will be explained next.
レードル８にて炉内に投入される溶湯Ａは、炉
内に貯えられると共に、炉底部の開口３ａから湯
道３にも入り、常態では炉本体部の湯面Ｂと湯道
３の揚湯管４内の湯面は同一湯面となつている。 The molten metal A introduced into the furnace by the ladle 8 is stored in the furnace and also enters the runner 3 through the opening 3a at the bottom of the furnace, and under normal conditions, the molten metal A in the furnace body and the hot molten metal in the runner 3 are separated. The hot water level in the pipe 4 is the same hot water level.
出湯に当たつて、今、揚湯管４の下部に設けた
ガス吹込口６に対して外部ガス供給装置から圧力
ガスを供給すると、このガスはガス吹込口６に内
装した気泡化部材７で気泡化されて揚湯管３内の
溶湯内に吹き込まれて上昇することから、揚湯管
４内のこの気泡ガスを含む溶湯Ａ１は相対的に比
重が軽くなり、その湯面は気泡ガスの作用、つま
り気泡ポンプ作用によつて押し上げられて出湯樋
５部に達すると、揚湯流となつて出湯口３ｃから
流出してレードル８に排出される。 When hot water is tapped, when pressurized gas is supplied from an external gas supply device to the gas inlet 6 provided at the bottom of the hot water pipe 4, this gas is passed through the bubbling member 7 installed in the gas inlet 6. Since the molten metal A1 containing bubble gas is bubbled and blown into the molten metal in the lift pipe 3 and rises, the specific gravity of the molten metal A1 containing this bubble gas in the lift pipe 4 becomes relatively light, and the surface of the molten metal is filled with bubble gas. When the hot water is pushed up by the action of the bubble pump and reaches the outlet gutter 5, it flows out from the outlet 3c as a hot water flow and is discharged into the ladle 8.
ここで出湯量を調整するには、ガス吹込口６を
通じ揚湯管３に対するガス供給量を制御して行
い、また出湯を停止する場合は、ガス吹込口６に
溶湯Ａが逆流しない程度までガス供給量を減ずる
ことにより揚湯管３内の湯面を下げるようにすれ
ばよい。 To adjust the amount of hot water being dispensed here, control the amount of gas supplied to the hot water pipe 3 through the gas inlet 6, and when stopping the tapping, the amount of gas supplied to the hot water pipe 3 through the gas inlet 6 is adjusted until the molten metal A does not flow back into the gas inlet 6. The level of hot water in the hot water pipe 3 may be lowered by reducing the supply amount.
尚、この発明に使用されるガスの種類について
は、溶湯Ａとの反応等に影響によるガス供給口６
に内装される気泡化部材７の寿命に対して配慮し
た場合に特に制限はなく、N2、Ar、CO2等を始
めとして精錬時の２次的な目的に応じて種々のガ
スを使用可能とする。 Regarding the type of gas used in this invention, the gas supply port 6 depends on the reaction with the molten metal A.
There is no particular restriction when considering the lifespan of the aerated member 7 installed in the refining process, and various gases such as N 2 , Ar, CO 2 etc. can be used depending on the secondary purpose during refining. shall be.
第２図はこの発明の他の実施例を示す湯道部の
一部構成図である。 FIG. 2 is a partial configuration diagram of a runner section showing another embodiment of the present invention.
この実施例では、湯道３の上向き揚湯部管４部
における溶湯の温度低下を補う目的で、当該揚湯
管４部に加熱用誘導コイル９を配装して出湯時の
湯温低下を軽減する構成のものである。 In this embodiment, in order to compensate for the temperature drop of the molten metal in the 4th part of the upward hot water raising pipe of the runner 3, a heating induction coil 9 is installed in the 4th part of the hot water raising pipe to compensate for the drop in hot water temperature during tapping. It has a structure that reduces the amount of damage.
第３図はこの発明を転炉に適用した実施例の概
略構成図である。 FIG. 3 is a schematic diagram of an embodiment in which the present invention is applied to a converter.
図において炉本体１の基本構成は周知の転炉と
同様のものであるが、炉底部の形状に合わせてこ
の発明に係る湯道３を設け、これより連続精錬、
連続出湯を可能ならしめたものである。 In the figure, the basic structure of the furnace body 1 is the same as that of a well-known converter, but a runner 3 according to the present invention is provided to match the shape of the furnace bottom, and from this, continuous refining,
This enables continuous hot water supply.
尚、図中１０は底吹き用羽口である。 In addition, 10 in the figure is a tuyere for bottom blowing.
（効 果）
この発明は上記の如く、炉本体に上向き揚湯部
を有する湯道を付設し、該湯道の上向き揚湯部下
部にガス吹込口を設け、該ガス吹込口を通じて揚
湯部内の溶湯に気泡ガスを吹込み、気泡ポンプ作
用によつて出湯するように構成したことによつて
次のような効果を奏する。(Effects) As described above, this invention includes a runner having an upward molten metal raising part attached to the furnace main body, a gas inlet at the lower part of the upward molten metal raising part of the runner, and a gas inlet into the molten metal raising part through the gas inlet. The following effects are achieved by blowing bubble gas into the molten metal and discharging the metal by the action of a bubble pump.
(1) 炉内からの溶湯の排出は、炉本体を正立にし
たまま湯道に対するガス吹込み流量を調整する
ことにより、出湯、停止および出湯流量を簡単
に制御し得るようにしたから、各種冶金炉での
連続精錬、連続出湯が可能となる。(1) The discharge of molten metal from the furnace can be easily controlled by adjusting the flow rate of gas blowing into the runner while keeping the furnace body upright. Continuous refining and continuous tapping in various metallurgical furnaces are possible.
(2) 貯溜炉の場合、溶湯の排出で従来のように炉
本体の傾動を必要としないから、設備が簡単と
なる。(2) In the case of a storage furnace, it is not necessary to tilt the furnace body to discharge the molten metal, as in the case of conventional furnaces, so the equipment is simple.
(3) 転炉に適用した場合、吹錬完了後の出湯は勿
論、吹錬途中での出湯も任意になし得、そこで
の連続精錬が可能となる。(3) When applied to a converter, hot water can be tapped not only after completion of blowing, but also during the blowing process, making continuous refining possible.
第１図はこの発明を貯銑炉に適用した実施例の
概略構成図、第２図は他の実施例を示す湯道部の
一部構成図、第３図は転炉に適用した実施例の概
略構成図である。
１…炉本体、２…受湯口、３…湯道、４…揚湯
管、５…出湯樋、６…ガス吹込口、７…ガス気泡
化部材、８…レードル、９…誘導コイル、１０…
底吹き用羽口。
Fig. 1 is a schematic configuration diagram of an embodiment in which the present invention is applied to a pig iron storage furnace, Fig. 2 is a partial configuration diagram of a runner showing another embodiment, and Fig. 3 is an embodiment in which the invention is applied to a converter. FIG. DESCRIPTION OF SYMBOLS 1... Furnace body, 2... Inlet, 3... Runway, 4... Lifting pipe, 5... Tap tap, 6... Gas inlet, 7... Gas bubbling member, 8... Ladle, 9... Induction coil, 10...
Tuyeres for bottom blowing.
Claims (1)
部を有し、炉外に開口する出湯口を炉内溶湯面よ
り常に高い位置を採る湯道を付設し、該湯道の上
向き揚湯部下部に気泡発生手段を設けたことを特
徴とする高温溶融金属用炉。1. A runner is attached that communicates with the bottom of the furnace body and has an upwardly pointing molten metal raising part, and the outlet opening to the outside of the furnace is always located at a higher position than the molten metal surface in the furnace, and the upwardly pointing molten metal is raised in the runner A furnace for high-temperature molten metal, characterized in that a bubble generating means is provided in the lower part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20838785A JPS6267108A (en) | 1985-09-19 | 1985-09-19 | Furnace for high temperature molten metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20838785A JPS6267108A (en) | 1985-09-19 | 1985-09-19 | Furnace for high temperature molten metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6267108A JPS6267108A (en) | 1987-03-26 |
| JPH033723B2 true JPH033723B2 (en) | 1991-01-21 |
Family
ID=16555419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20838785A Granted JPS6267108A (en) | 1985-09-19 | 1985-09-19 | Furnace for high temperature molten metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6267108A (en) |
-
1985
- 1985-09-19 JP JP20838785A patent/JPS6267108A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6267108A (en) | 1987-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100741237B1 (en) | Pressure control method in direct smelting process | |
| ES2272220T3 (en) | COMMISSIONING PROCEDURE FOR A DIRECT FUSION PROCESS. | |
| SU1496637A3 (en) | Method and apparatus for continuous refining of steel in electric furnace | |
| US4456476A (en) | Continuous steelmaking and casting | |
| US6596221B1 (en) | Metallurgical vessel having a tapping device and method for the controlled, slag-free extraction of molten metal from said vessel | |
| KR910001577B1 (en) | Method of bottom blowing operation of a steel making electric furnace | |
| US4615511A (en) | Continuous steelmaking and casting | |
| EP0685000A1 (en) | Method and apparatus for slag free casting | |
| US4405365A (en) | Method for the fabrication of special steels in metallurgical vessels | |
| US5885323A (en) | Foamy slag process using multi-circuit lance | |
| US4761178A (en) | Process for heating molten steel contained in a ladle | |
| US4302244A (en) | Steel conversion method | |
| JPH033723B2 (en) | ||
| US4627601A (en) | Installation for the production of steel by pre-smelting of pig iron | |
| CN101194029B (en) | Hot metal supply apparatus | |
| JPH01127613A (en) | Method and apparatus for refining molten metal | |
| US4139368A (en) | Metallurgical method | |
| US3819842A (en) | Method and furnace for maintaining the temperature level of metal melts | |
| JP2533921B2 (en) | Smelting reduction furnace tapping method | |
| CN108027209A (en) | Channel-type induction furnace | |
| JPH0535842U (en) | Converter type metallurgical reactor | |
| AU781927B2 (en) | Pressure control | |
| SU1404529A1 (en) | Fuel-oxygen lance | |
| SU922156A1 (en) | Method for steel melting in convertor | |
| Shima et al. | Development and operation of RH-multi-function-burner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |