JPH0232673Y2 - - Google Patents
Info
- Publication number
- JPH0232673Y2 JPH0232673Y2 JP1983048838U JP4883883U JPH0232673Y2 JP H0232673 Y2 JPH0232673 Y2 JP H0232673Y2 JP 1983048838 U JP1983048838 U JP 1983048838U JP 4883883 U JP4883883 U JP 4883883U JP H0232673 Y2 JPH0232673 Y2 JP H0232673Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- powder
- discharge port
- metal
- monolithic refractory
- 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 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 6
- 239000011823 monolithic refractory Substances 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000007670 refining Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000001010 compromised effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (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)
Description
【考案の詳細な説明】
本考案は溶融金属へガス及び／又は粉体を吹込
むパイプの改善に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in pipes for blowing gas and/or powder into molten metal.
最近の製鋼法において高炉から出た溶銑を転炉
で精錬する前に混銑車や溶銑鍋中にパイプで粉状
脱硫剤等精錬剤を搬送用ガスと共に吹込み予備処
理することが行われている。 In recent steelmaking methods, before refining hot metal from a blast furnace in a converter, a refining agent such as a powdered desulfurizing agent is injected into the mixer car or hot metal pot through a pipe along with a conveying gas for preliminary treatment. .
ところで該パイプは全長３〜6m、直径200〜
400mm位のサイズから成り鉄パイプを不定形耐火
物で被覆したものから成り、下端部吐出口から精
錬剤を吹込むものであるが吐出口周辺やその上
部々分が噴出ガスによる溶融金属の攬拌作用、精
錬剤との影響により重点的に損耗してパイプライ
フのネツクになつていた。 By the way, the pipe has a total length of 3 to 6 meters and a diameter of 200 meters.
It consists of an iron pipe with a size of about 400 mm covered with a monolithic refractory material, and the refining agent is injected from the discharge port at the bottom end. Due to the influence of the refining agent, it was severely worn out and the life of the pipe was being compromised.
そこで本考案へ上述のネツクを解決すべく当該
部分の不定形耐火物を肉厚に形成することを要旨
とするものである。 Therefore, in order to solve the above-mentioned problem, the present invention aims to form the monolithic refractory in the relevant part to be thick.
以下この実施例を図面に基づき説明する。尚、
各図中共通個所は共通番号で示す。 This embodiment will be explained below based on the drawings. still,
Common parts in each figure are indicated by common numbers.
第１図は従来例で溶融金属中に浸漬する下端部
分を示し１は中空金属パイプでガスや粉体が通過
するもので２は金属製吐出管で同じくガスや粉体
が噴出するものである。３はポケツト部で粉体が
堆積して流通路を後述するようにセルフライニン
グ形成させるためのものである。４は樹枝状スタ
ツドで中空金属パイプに溶接して不定形耐火物５
を支持する。６は吐出口で凸状に形成されてい
る。７は損耗個所を示す。 Figure 1 shows the lower end part of a conventional example, which is immersed in molten metal. 1 is a hollow metal pipe through which gas or powder passes, and 2 is a metal discharge pipe through which gas or powder is ejected. . Reference numeral 3 is for forming a self-lining flow path by depositing powder in the pocket portion as will be described later. 4 is a dendritic stud welded to a hollow metal pipe to form a monolithic refractory 5
support. 6 is a discharge port formed in a convex shape. 7 indicates a worn part.
第２図ａは本考案例で８は基体部で従来と同一
径から成り、９は肉厚形成部で吐出口上部300〜
600mmに渡り50〜100mm肉厚に形成する。 Figure 2a shows an example of the present invention, 8 is the base portion, which has the same diameter as the conventional one, and 9 is the thick-walled portion, which extends from 300 to 300 mm above the discharge port.
Form 50-100mm thick over 600mm.
第２図ｂは第２図ａ軸方向（Ａ−Ａ矢視）断面
で吐出口が２個所有る例で肉厚部９が吐出口上部
のみに部分的に形成されたものである。 FIG. 2b shows an example in which there are two discharge ports in a cross section in the axial direction (A-A arrow direction) of FIG. 2A, and the thick portion 9 is partially formed only at the upper portion of the discharge ports.
第２図ｃは第２図ｂに類似した例で凸状６部分
が連続状で上部へ延長形成された例である。第２
図ｄは同軸方向断面である。同様に吐出口が４個
所有る例に応用出来るものである。 FIG. 2c is an example similar to FIG. 2b, in which the six convex portions are continuous and extend upward. Second
Figure d is a coaxial cross section. Similarly, it can be applied to an example having four discharge ports.
第３図はパイプ中間部分のスラグライン部１０
が肉厚に形成された例である。 Figure 3 shows the slag line section 10 in the middle part of the pipe.
This is an example in which the wall is formed thickly.
しかして、叙上構成により重点的に損耗する個
所のライフ延長が図られ、パイプ全体の寿命が延
長されることとなる。 As a result, the above-mentioned configuration extends the life of the parts that are subject to wear and tear, thereby extending the life of the pipe as a whole.
以上本考案は溶融金属へガス及び／又は粉体を
吹込むパイプのライフアツプに著しく寄与するも
のである。 As described above, the present invention significantly contributes to extending the life of pipes for blowing gas and/or powder into molten metal.
第１図は従来のパイプの損耗状態を示す縦断面
図、第２図ａ〜ｄ、第３図は本案の実施態様を示
す縦断若しくは平断面図である。
１……中空金属パイプ、２……金属製吐出管、
３……ポケツト部、４……樹枝状スタツド、５…
…不定形耐火物、６……吐出口、７……損耗個
所、８……基体部、９……肉厚部、１０……スラ
グライン部。
FIG. 1 is a longitudinal cross-sectional view showing the state of wear of a conventional pipe, and FIGS. 2 a to d, and 3 are longitudinal cross-sectional views or plane cross-sectional views showing embodiments of the present invention. 1...Hollow metal pipe, 2...Metal discharge pipe,
3... pocket part, 4... dendritic stud, 5...
... Monolithic refractory, 6... Discharge port, 7... Worn portion, 8... Base portion, 9... Thick wall portion, 10... Slag line portion.
Claims (1)
成るパイプにおいて、吐出口上部をパイプ長手方
向に所要幅、所要長さだけ部分的に基体部より肉
厚に形成して成ることを特徴とする溶融金属中へ
のガス及び／又は粉体吹込み用パイプ。 A pipe in which the periphery of a hollow metal pipe is formed of a monolithic refractory material, characterized in that the upper part of the discharge port is partially thicker than the base part by a required width and length in the longitudinal direction of the pipe. Pipe for blowing gas and/or powder into molten metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983048838U JPS6016751U (en) | 1983-04-01 | 1983-04-01 | Pipes for gas and/or powder injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983048838U JPS6016751U (en) | 1983-04-01 | 1983-04-01 | Pipes for gas and/or powder injection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6016751U JPS6016751U (en) | 1985-02-04 |
| JPH0232673Y2 true JPH0232673Y2 (en) | 1990-09-04 |
Family
ID=30179360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1983048838U Granted JPS6016751U (en) | 1983-04-01 | 1983-04-01 | Pipes for gas and/or powder injection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6016751U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6084245B2 (en) * | 2015-03-02 | 2017-02-22 | 東京窯業株式会社 | Lance pipe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4929U (en) * | 1972-04-04 | 1974-01-05 | ||
| JPS59145722A (en) * | 1983-02-09 | 1984-08-21 | Nippon Kokan Kk <Nkk> | Cooling method of lance for stirring molten metal |
| JPS59145728A (en) * | 1983-02-09 | 1984-08-21 | Nippon Kokan Kk <Nkk> | Cooling method of lance for stirring molten metal |
| JPS59145727A (en) * | 1983-02-09 | 1984-08-21 | Nippon Kokan Kk <Nkk> | Cooling method of lance for stirring molten metal |
| JPS59145726A (en) * | 1983-02-09 | 1984-08-21 | Nippon Kokan Kk <Nkk> | Cooling method of lance for stirring molten metal |
-
1983
- 1983-04-01 JP JP1983048838U patent/JPS6016751U/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4929U (en) * | 1972-04-04 | 1974-01-05 | ||
| JPS59145722A (en) * | 1983-02-09 | 1984-08-21 | Nippon Kokan Kk <Nkk> | Cooling method of lance for stirring molten metal |
| JPS59145728A (en) * | 1983-02-09 | 1984-08-21 | Nippon Kokan Kk <Nkk> | Cooling method of lance for stirring molten metal |
| JPS59145727A (en) * | 1983-02-09 | 1984-08-21 | Nippon Kokan Kk <Nkk> | Cooling method of lance for stirring molten metal |
| JPS59145726A (en) * | 1983-02-09 | 1984-08-21 | Nippon Kokan Kk <Nkk> | Cooling method of lance for stirring molten metal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6016751U (en) | 1985-02-04 |
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