JPS6284858A - Method and device for spraying powder for continuous casting - Google Patents
Method and device for spraying powder for continuous castingInfo
- Publication number
- JPS6284858A JPS6284858A JP22282185A JP22282185A JPS6284858A JP S6284858 A JPS6284858 A JP S6284858A JP 22282185 A JP22282185 A JP 22282185A JP 22282185 A JP22282185 A JP 22282185A JP S6284858 A JPS6284858 A JP S6284858A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- nozzle
- powders
- continuous casting
- distributor
- 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.)
- Granted
Links
- 239000000843 powder Substances 0.000 title claims abstract description 58
- 238000005507 spraying Methods 0.000 title claims abstract description 15
- 238000009749 continuous casting Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 239000007921 spray Substances 0.000 claims abstract description 9
- 239000006185 dispersion Substances 0.000 claims description 13
- 238000005086 pumping Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 238000002844 melting Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000000790 scattering method Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/108—Feeding additives, powders, or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は連続鋳造用パウダーの散布方法及び装置、特に
モールド内に均一に散布し得る方法及びそのための装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method and apparatus for dispersing powder for continuous casting, and particularly to a method and apparatus for uniformly dispersing powder into a mold.
（従来の技術）
通常、鋼の連続鋳造に際しては、鋳型固溶鋼表面の酸化
防止、鋳型と鋳片との潤滑、浮上介在物の捕捉等を目的
として、溶鋼表面に顆粒状又は粉体状パウダーを散布し
て被覆している。最近では、このパウダーの鋳型への搬
送・散布方式として自動的な手段が用いられている。(Prior art) Normally, during continuous casting of steel, granular or powder-like powder is applied to the surface of the molten steel for the purpose of preventing oxidation of the solid solution steel surface of the mold, lubricating the mold and slab, capturing floating inclusions, etc. It is covered by spraying. Recently, automatic means have been used to convey and spread this powder to the mold.
従来の自動的なパウダー搬送・散布手段は、スクリュー
フィーダーに代表される機械輸送方式と気体輸送方式に
大別されるが、このうち本発明が対象としている気体輸
送方式は、タンクに貯蔵したパウダーをＮ２ガスにて給
送管内を圧送し、先端に取付けたノズルから鋳型内の溶
鋼へ散布するものである。このようなパウダー供給・散
布法および装置としては特開昭６０−５４２５３号公報
、実開昭５８−１３７４３５号公報等が提案されている
。Conventional automatic powder conveyance/spreading means can be roughly divided into mechanical transport methods represented by screw feeders and gas transport methods. Of these, the gas transport method targeted by the present invention is a method for transporting powder stored in a tank. N2 gas is forced into the feed pipe and sprayed onto the molten steel in the mold from a nozzle attached to the tip. Such powder supply/spreading methods and devices have been proposed in Japanese Patent Application Laid-open No. 60-54253, Japanese Utility Model Application Publication No. 58-137435, and the like.
（発明が解決しようとする問題点）
しかしながら、上述した従来のパウダー供給争散布手段
においては、その使用しているノズル構造に起因して、
＃８型内におけるパウダー分布状態が均一にならない問
題があった。すなわち、通常散布ノズルはパイプスリッ
ト型を使用しているため２パウダー輸送圧力の高低によ
り鋳型内の散布状態（分布）が変動し一定しない０例え
ば、圧力が高い場合はノズル先端側に散布量が多くなり
、逆に圧力が低い場合はノズル後端側に散布量が多くな
る傾向があり、均一な散布が不可能となる。(Problems to be Solved by the Invention) However, in the above-mentioned conventional powder supply dispersion means, due to the nozzle structure used,
There was a problem that the powder distribution state within the #8 mold was not uniform. In other words, since the spraying nozzle normally uses a pipe slit type, the spraying state (distribution) inside the mold fluctuates and is not constant depending on the powder transport pressure. Conversely, when the pressure is low, the amount of spray tends to increase toward the rear end of the nozzle, making uniform spray impossible.
本発明はこのような従来の問題点を解決し、輸送圧力の
高低に左右されず、常に均一なパウダー％ ｄｉを可能
にすることを目的とする。It is an object of the present invention to solve these conventional problems and to make it possible to always achieve a uniform powder % di regardless of the level of transport pressure.
（問題点を解決するための手段）
上記目的を達成するための本発明の具体的な構成は次の
通りである。(Means for Solving the Problems) The specific configuration of the present invention for achieving the above object is as follows.
（１）顆粒状又は粉体状連続鋳造用パウダーを給送配管
を通して圧送し、該配管先端に設けた散布ノズルによっ
て鋳型自溶鋼表面上に散布するパウダーの散布方法いお
いて、
前記ノズルとして鋳型内の複数箇所に夫々独立して散布
可能な構造のノズルを用い、該ノズル直前位心にてパウ
ダーを増速すると共に、各独立したノズル毎にパウダー
を分配しかつその供給量を調整可能とし、均一に散布し
得るようにしたことを特徴とする連続鋳造用パウダーの
散布方法。(1) A powder dispersion method in which granular or powdered powder for continuous casting is force-fed through a feeding pipe and sprayed onto the surface of self-melting mold steel using a dispersion nozzle provided at the tip of the pipe, wherein the nozzle is used as the mold. Using nozzles with a structure that allows them to be sprayed independently at multiple locations within the nozzle, the powder is accelerated at the center immediately in front of the nozzle, and the powder is distributed to each independent nozzle and its supply amount can be adjusted. A method for dispersing powder for continuous casting, characterized in that it enables uniform dispersion.
（２）顆粒状又は粉体状連続鋳造用パウダーを圧送する
配管と、該配管先端に設けた散布ノズルとを有するパウ
ダーの散布装置において、
前記ノズルを鋳型内の複数箇所に夫々独立して散布可能
な構造に形成し、該散布ノズルの直前に、パウダー増速
器と、前記の各独立ノズルと同数にかつ夫々に連通ずる
ように管断面を複数に区分する分岐質および各分岐流を
独立して調整可能とする調整弁を内蔵する分配器とを、
配置したことを特徴とする連続鋳造用パウダーの散布装
置。(2) In a powder dispersion device having a pipe for pumping granular or powdered continuous casting powder and a dispersion nozzle provided at the tip of the pipe, the nozzle is used to independently spray at multiple locations within the mold. Immediately before the spray nozzle, a powder speed increaser, a branch material that divides the pipe cross section into a plurality of parts so as to be in communication with each other and the same number as the independent nozzles, and each branch flow are made independent. A distributor with a built-in adjustment valve that can be adjusted by
A powder dispersion device for continuous casting, characterized in that:
（実施例）
以下本発明を図面に示す実施例に基づいて詳細に説明す
る。(Example) The present invention will be described in detail below based on an example shown in the drawings.
第１図に示すものは、本発明散布装置の使用態様であり
、タンディツシュ６内の溶鋼は浸漬ノズル７を通って鋳
型８へ供給されるが、鋳型自溶鋼１０表面にはパウダー
散布ノズル１によってパウダー９が散布される。散布ノ
ズルｌは図示のように、矩形鋳型の長辺にそって一対対
向して設置されるが、その取付位置は例えばタンディツ
シュ６の底部に装着することができる。What is shown in FIG. 1 is a mode of use of the spraying device of the present invention, in which molten steel in a tundish 6 is supplied to a mold 8 through a submerged nozzle 7, but the surface of the mold self-melting steel 10 is coated with a powder spraying nozzle 1. Powder 9 is sprinkled. As shown in the figure, the spraying nozzles 1 are installed along the long sides of the rectangular mold in a pair facing each other, but the spraying nozzles 1 can be installed at the bottom of the tundish 6, for example.
散布ノズル１部分の詳細を第２図に示すが、ノズル部は
長さの異なる４本の角型ノズル２Ａ、１１１１．ＩＣ，
１０を各一端を一致させるように組合せて構成され、各
ノズルにはパウダー吐出口ＩＥ、ＩＦ、ＩＣ，ＩＨが同
一方向に形成され、該パウダー吐出口ＩＥ、ＩＦ、ＩＧ
、ＩＨは鋳型長手方向にそってほぼ均等に配置されるこ
とになる。このノズル部の一端には円筒状の分配器２が
接続され、該分配器２にはざらに増速器３および配管（
ホース）４が連設されており。The details of the spray nozzle 1 part are shown in FIG. 2, and the nozzle part has four rectangular nozzles 2A, 1111. IC,
10 are combined so that one end of each nozzle coincides with each other, and each nozzle has powder discharge ports IE, IF, IC, and IH formed in the same direction, and the powder discharge ports IE, IF, and IG.
, the IHs are arranged approximately evenly along the longitudinal direction of the mold. A cylindrical distributor 2 is connected to one end of this nozzle part, and the distributor 2 includes a speed increaser 3 and piping (
hose) 4 are installed in series.
該配管４はパウダー供給源（図示しない）に続いている
。The pipe 4 leads to a powder supply source (not shown).
上記分配器２の内部は前記角型ノズル１の数に合わせた
室数に分割され、各室はそれぞれ各ノズル対応して連通
している。すなわち、分配器本体内には第４図に示す十
字状の分岐大部材２Ｃが第５図の如く固着されて内部を
４室に区分し、各室が前記ノズルＩＡ〜ＩＯにそれぞれ
連通しており、かつ各室内には第７図に示す三角形の調
整弁２Ａが、その底辺側を支点にして回動する如くセッ
トされ。The inside of the distributor 2 is divided into a number of chambers corresponding to the number of square nozzles 1, and each chamber communicates with each nozzle. That is, a large cross-shaped branch member 2C shown in FIG. 4 is fixed inside the distributor main body as shown in FIG. 5, dividing the interior into four chambers, each of which communicates with the nozzles IA to IO. A triangular regulating valve 2A shown in FIG. 7 is set in each chamber so as to rotate about its base side as a fulcrum.
該ブｒ２Ａはその先端側を外部から調整ボルト２Ｂによ
って移動調整され、それによってパウダー供給量を調節
し得るようになっている。勿論、該調整弁２Ａを完全に
閉じることにより、パウダーの輸送を停止にすることも
できる。The tip side of the brush r2A is moved and adjusted from the outside by an adjustment bolt 2B, thereby making it possible to adjust the powder supply amount. Of course, powder transportation can also be stopped by completely closing the regulating valve 2A.
また、上記増速器３は第３図に示すように、分配器２側
に向って傾斜した増速孔３Ｃを本体に形成し、その周囲
に、気体入口３Ａを有するタンク３Ｂを配置してなるも
ので、配管４から搬送されてくるパウダーを均等に拡散
する機能をもつ、なお、増速孔３Ｃはスリット状に形成
してもよく、或いは複数の孔にて構成してもよい。Further, as shown in FIG. 3, the speed increaser 3 has a speed increase hole 3C formed in the body that is inclined toward the distributor 2 side, and a tank 3B having a gas inlet 3A arranged around the speed increase hole 3C. The speed increasing hole 3C has the function of uniformly diffusing the powder conveyed from the pipe 4. The speed increasing hole 3C may be formed in the shape of a slit, or may be composed of a plurality of holes.
さらに、第８図に示すものは、各ノズルｌに取付ける分
配アタッチメント１１であり、ノズル取付部１２と、該
取付部直下に設けた分配突起１３と、鋳型幅方向に延び
るパウダー分配筒１４とから構成される。Furthermore, what is shown in FIG. 8 is a distribution attachment 11 attached to each nozzle l, which consists of a nozzle attachment part 12, a distribution protrusion 13 provided directly below the attachment part, and a powder distribution cylinder 14 extending in the mold width direction. configured.
このように構成された本発明のパウダー散布装置を第１
図に示すように、連続鋳造用鋳型とタンディツシュ間に
配置して用いる。しかして、パウダー供給源より配管４
によって輸送されるパウダーは、所定圧力の気体が入口
３Ａからタンク３Ｂへ送り込まれ増速孔３Ｃを経て増速
器３の内部へ噴出することによって、均等に拡散され、
分配器２に送られる。該分配器２の内部において分岐質
２Ｃによりパウダーは均等に区分数に応じて分配され、
各散布ノズルＩＡ〜ＩＤの吐出口ＩＥ−ＩＨから鋳型内
の溶鋼表面に散布される。なお、鋳型内のパウダー散布
状ｙムが不均一の場合は、適宜各調整弁２Ａをポル）２
Ｂにて調整することによって、均一に維持することがで
きる。The powder scattering device of the present invention configured as described above is installed in the first
As shown in the figure, it is used by placing it between the continuous casting mold and the tundish. Therefore, from the powder supply source to the pipe 4
The powder transported by is uniformly diffused by sending gas at a predetermined pressure into the tank 3B from the inlet 3A and ejecting it into the speed increaser 3 through the speed increase hole 3C.
It is sent to distributor 2. Inside the distributor 2, the powder is evenly distributed according to the number of divisions by the branched substance 2C,
It is sprayed onto the surface of the molten steel in the mold from the discharge ports IE-IH of each spray nozzle IA-ID. In addition, if the powder dispersion pattern in the mold is uneven, adjust each adjustment valve 2A as appropriate.
By adjusting at B, uniformity can be maintained.
（発明の効果）
以上説明した本発明のパウダー散布方法によれば、パウ
ダーの輸送圧力がどのように変化しても、溶鋼表面にパ
ウダーを常に均一な状態で散布することができ、安定し
た連続鋳造作業に寄与する。また、本発明の散布装置に
よれば、上記散布方法を効果的に実施し得ると共に、パ
ウダー供給量を容易かつ確実に調整可能であり、その工
業的価値も大きい。(Effects of the Invention) According to the powder scattering method of the present invention as explained above, powder can always be uniformly spread on the surface of molten steel no matter how the powder transportation pressure changes, and stable continuous scattering can be achieved. Contribute to casting work. Moreover, according to the spraying device of the present invention, the above-mentioned spraying method can be carried out effectively, and the amount of powder supplied can be easily and reliably adjusted, and its industrial value is also great.
？ＪＩＪ１図は本発明に係る散布装置の使用状態を示す
断面図、第２図は本発明装置における散布ノズルの具体
例を示す斜視図、第３図は本発明装置における増速器と
分配器を示す断面図、第４図は分配器の分岐質の例を示
す斜視図、第５図は分配器の正面断面図、第６図は分配
器のパウダー供給量調整機構の例を示す断面図、第７図
は調整弁の平面図、第８図はノズル先端に取付ける分配
アタッチメントの例を示す断面図である。? Figure JIJ1 is a sectional view showing the usage state of the spraying device according to the present invention, Figure 2 is a perspective view showing a specific example of the spraying nozzle in the device of the present invention, and Figure 3 is a diagram showing the speed increaser and distributor in the device of the present invention. FIG. 4 is a perspective view showing an example of the branch quality of the distributor, FIG. 5 is a front sectional view of the distributor, and FIG. 6 is a sectional view showing an example of the powder supply amount adjustment mechanism of the distributor. FIG. 7 is a plan view of the regulating valve, and FIG. 8 is a sectional view showing an example of a distribution attachment attached to the tip of the nozzle.
Claims (2)
を通して圧送し、該配管先端に設けた散布ノズルによっ
て鋳型内溶鋼表面上に散布するパウダーの散布方法にお
いて、 前記ノズルとして鋳型内の複数箇所に夫々独立して散布
可能な構造のノズルを用い、該ノズル直前位置にてパウ
ダーを増速すると共に、各独立したノズル毎にパウダー
を分配しかつその供給量を調整可能とし、均一に散布し
得るようにしたことを特徴とする連続鋳造用パウダーの
散布方法。(1) A powder dispersion method in which granular or powdered powder for continuous casting is force-fed through a feeding pipe, and is dispersed onto the surface of molten steel in a mold by a dispersion nozzle provided at the tip of the pipe, in which the nozzle is used as a Using nozzles that can be sprayed independently at multiple locations, the powder is sped up at the position directly in front of the nozzle, and the powder can be distributed to each independent nozzle and the amount of powder supplied can be adjusted, ensuring uniform spraying. A method for dispersing powder for continuous casting, characterized in that the powder can be dispersed.
配管と、該配管先端に設けた散布ノズルとを有するパウ
ダーの散布装置において、 前記ノズルを鋳型内の複数箇所に夫々独立して散布可能
な構造に形成し、該散布ノズルの直前に、パウダー増速
器と、前記の各独立ノズルと同数にかつ夫々に連通する
ように管断面を複数に区分する分岐翼および各分岐流を
独立して調整可能とする調整弁を内蔵する分配器とを、
配置したことを特徴とする連続鋳造用パウダーの散布装
置。(2) In a powder dispersion device having a pipe for pumping granular or powdered continuous casting powder and a dispersion nozzle provided at the tip of the pipe, the nozzle is used to independently spray at multiple locations within the mold. Immediately in front of the spray nozzle, there is a powder speed increaser, a branch blade that divides the pipe cross section into a plurality of parts so as to have the same number of independent nozzles as the above-mentioned independent nozzles, and to communicate with each other, and to separate each branch flow. A distributor with a built-in adjustment valve that can be adjusted by
A powder dispersion device for continuous casting, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22282185A JPS6284858A (en) | 1985-10-08 | 1985-10-08 | Method and device for spraying powder for continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22282185A JPS6284858A (en) | 1985-10-08 | 1985-10-08 | Method and device for spraying powder for continuous casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6284858A true JPS6284858A (en) | 1987-04-18 |
| JPS6352987B2 JPS6352987B2 (en) | 1988-10-20 |
Family
ID=16788435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22282185A Granted JPS6284858A (en) | 1985-10-08 | 1985-10-08 | Method and device for spraying powder for continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6284858A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100831350B1 (en) | 2006-11-28 | 2008-05-21 | 주식회사 포스코 | Flux feeder |
| WO2010108434A1 (en) * | 2009-03-26 | 2010-09-30 | 衡阳镭目科技有限责任公司 | Device and method for adding flux slag to mold of continuous casting machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230011017A (en) | 2021-07-13 | 2023-01-20 | 한국철도기술연구원 | Measurement system for abrasion profile of brake disk |
-
1985
- 1985-10-08 JP JP22282185A patent/JPS6284858A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100831350B1 (en) | 2006-11-28 | 2008-05-21 | 주식회사 포스코 | Flux feeder |
| WO2010108434A1 (en) * | 2009-03-26 | 2010-09-30 | 衡阳镭目科技有限责任公司 | Device and method for adding flux slag to mold of continuous casting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6352987B2 (en) | 1988-10-20 |
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