JPS63204097A - Release agent for extraneous slag of molten iron ladle - Google Patents
Release agent for extraneous slag of molten iron ladleInfo
- Publication number
- JPS63204097A JPS63204097A JP3657587A JP3657587A JPS63204097A JP S63204097 A JPS63204097 A JP S63204097A JP 3657587 A JP3657587 A JP 3657587A JP 3657587 A JP3657587 A JP 3657587A JP S63204097 A JPS63204097 A JP S63204097A
- Authority
- JP
- Japan
- Prior art keywords
- ladle
- slag
- powder
- undercoat
- molten iron
- 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.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 26
- 239000002893 slag Substances 0.000 title claims description 23
- 239000003795 chemical substances by application Substances 0.000 title claims description 13
- 229910052742 iron Inorganic materials 0.000 title claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 19
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910002804 graphite Inorganic materials 0.000 claims description 10
- 239000010439 graphite Substances 0.000 claims description 10
- 239000011230 binding agent Substances 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 8
- 239000000377 silicon dioxide Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 6
- 229920003002 synthetic resin Polymers 0.000 claims description 6
- 239000000057 synthetic resin Substances 0.000 claims description 6
- 239000011812 mixed powder Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 239000002994 raw material Substances 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 6
- 239000011449 brick Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 235000012239 silicon dioxide Nutrition 0.000 description 5
- 239000004927 clay Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 4
- 239000005995 Aluminium silicate Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 235000012211 aluminium silicate Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 2
- 239000005350 fused silica glass Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 235000009827 Prunus armeniaca Nutrition 0.000 description 1
- 244000018633 Prunus armeniaca Species 0.000 description 1
- 241000269821 Scombridae Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 235000020640 mackerel Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 229910052851 sillimanite Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 150000004684 trihydrates Chemical class 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、製銑・製鋼ラインにおいて使用する溶融鉄の
取り鍋に付着するスラグの除去を容易にするために取り
鍋の内周面に塗布する剥離剤に関する。ここで取り鍋に
は、一般に溶銑鍋、溶鋼鍋、とりべ（取瓶）、トーピー
ド鍋と称せられるものが含まれる。[Detailed Description of the Invention] <Industrial Application Field> The present invention provides a method for making it easier to remove slag adhering to the ladle of molten iron used in ironmaking and steelmaking lines. Regarding the release agent to be applied. Here, the ladle includes what is generally called a hot metal ladle, a molten steel ladle, a ladle (ladle), and a torpedo ladle.
〈従来の技術〉
ここでは、主として高炉や電気炉と転炉との間の溶湯の
運搬を受持つ溶鋼鍋を例に取り説明するが、他の取り鍋
についても同様のことがいえる。<Prior Art> Here, explanation will be given mainly by taking as an example a molten steel ladle that is responsible for transporting molten metal between a blast furnace or an electric furnace and a converter, but the same can be said of other ladle.
高炉や電気炉から溶鋼鍋に取出された溶湯は、鍋に入れ
られた状態で、酸素添加、脱酸、脱燐、加炭、昇熱など
の各種処理を経た後、転炉などに出鋼される。このとき
、残留スラグ（ノロ）が、主として、溶鋼鍋の内周面中
間高さ上方部位に付着する。この付着スラグの除去は、
通常、機械ハンマーで叩いたり、ショベルカーで削り取
ったりして行なっていた。Molten metal taken out from a blast furnace or electric furnace into a molten steel ladle is placed in the ladle and undergoes various treatments such as oxygen addition, deoxidation, dephosphorization, carburization, and heating, and then is tapped into a converter etc. be done. At this time, residual slag (slag) mainly adheres to a portion above the middle height of the inner circumferential surface of the molten steel ladle. Removal of this adhered slag is
Usually, this was done by hitting it with a mechanical hammer or scraping it off with a shovel.
〈発明が解決しようとする問題点〉
ところが、上記付着スラグの除去作業は、大きな動力を
必要とするうえ、ＷＩｗＩ鍋に大きな衝撃力を繰り返し
与える必要があるため下記のような問四点があった。<Problems to be solved by the invention> However, the work of removing the adhered slag described above requires a large amount of power and it is necessary to repeatedly apply a large impact force to the WIwI pan, which raises the following four problems. Ta.
■溶鋼鍋の内張耐火レンガを著しく傷めたり摩耗させた
りする結果となり、耐火レンガの弓長り変えを頻繁にす
る必要があった。■This resulted in significant damage and wear to the refractory bricks lining the molten steel ladle, making it necessary to frequently change the bow length of the refractory bricks.
■除去作業時、スラグ塊や粉磨力号飛び敗るため作業環
境が悪いとともに、溶鋼鍋を十分に冷却（通常５００℃
以下）してからでなしＡと作業の開始ができず（溶ｖＡ
ｖＡが高温のままでＧよ、高ン昌のスラグ塊等が飛散し
て危険）、溶鋼鍋の回中云時間の短縮化が困難であった
。■During the removal work, the working environment is bad because slag lumps and powder grinding force are destroyed, and the molten steel ladle must be sufficiently cooled (usually at 500°C).
(below), I was unable to start work with Deneshi A (SoruvA)
If VA remains at a high temperature, slag lumps, etc. of G and Takansho will scatter, which is dangerous), making it difficult to shorten the time for circulating the molten steel ladle.
〈問題点を解決するための手段〉
本発明者は、上記問題点を解決するために鋭意開発に努
力をした結果、下記構成の溶融鉄取り鍋の付着スラグ用
剥離剤に想到しマ尋た。<Means for Solving the Problems> As a result of intensive development efforts in order to solve the above problems, the present inventor came up with a remover for slag adhering to molten iron ladle having the following configuration. .
下記下塗り剤（Ａ）と上塗り剤（Ｂ）とからなり、各剤
を構成する粉体の粒径力く前者〉９表者の関係にあるこ
とを特徴とする溶融鉄取り鍋のイ寸着スラグ用剥離剤。A molten iron ladle consisting of the following undercoating agent (A) and topcoating agent (B), characterized in that the particle size of the powder constituting each agent is in the relationship shown in Table 9 above. Slag remover.
（Ａ）固形成分がアルミナ及びシ１ツカの少なくとも一
方を主成分とする粉体力）らなり、さらに合成樹脂系バ
インダーが添加されている下塗り剤。(A) An undercoat consisting of a powder whose solid component is at least one of alumina and silica as a main component, and further containing a synthetic resin binder.
（Ｂ）固形成分が前記下塗り剤で使用したもの又は同類
のものに加えて黒鉛系炭素質粉体が２〜３０重量％添加
された混合粉体からなり、さらにバインダーが必要によ
り添加されている上塗り剤〈実施の態様〉
本発明で使用する下塗り剤（Ａ）及び上塗り剤（Ｂ）は
例えば下記のようにして調整する。(B) The solid component consists of a mixed powder in which 2 to 30% by weight of graphite-based carbonaceous powder is added in addition to the one used in the above-mentioned undercoat or a similar one, and a binder is further added as necessary. Topcoat (Embodiment) The undercoat (A) and topcoat (B) used in the present invention are prepared, for example, as follows.
（Ａ）下塗り剤；
アルミナ及びシリカの少なくとも一方が主成分とする粉
体が得られるように、乾燥原料をボールミルにて湿式粉
砕加工をする。そして、１００〜２００メツシユ（望ま
しくは１５０〜１８０メツシユ）の粉体となったら、合
成樹脂系バインダー添加して軽く混合する。(A) Undercoat; Dry raw materials are wet-pulverized in a ball mill so as to obtain a powder containing at least one of alumina and silica as a main component. When the powder is 100 to 200 meshes (preferably 150 to 180 meshes), a synthetic resin binder is added and mixed lightly.
上記乾燥原料としては、純度の高い無機工業薬品として
のアルミナ、アルミナ水和物、シリカ（無水ケイ酸・含
水ケイ酸）、アルミナケイ酸塩の他に、それらの原料で
あるシリマナイト族鉱物・ダイアスボア・ボーキサイト
・パン±頁岩・ミョウバン石などのアルミナ貿原料、ケ
イ石（石英）・ケイ酸などのケイ酸質原料、カオリン・
カオリン質粘土・ロウ石・蛙目粘土などの粘土質原料、
及び、長石・サバ土・アプライド・アルビタイト・陶石
などの長石質原料を適宜使用できる。The dry raw materials mentioned above include alumina, alumina hydrate, silica (anhydrous silicic acid/hydrated silicic acid), alumina silicate, which are highly pure inorganic industrial chemicals, as well as sillimanite group minerals and diasbore, which are the raw materials for these.・Alumina trade raw materials such as bauxite, pan ± shale, alumite, silicic acid raw materials such as silica (quartz) and silicic acid, kaolin, etc.
Clay raw materials such as kaolin clay, waxite, and frog's eye clay,
In addition, feldspathic raw materials such as feldspar, mackerel soil, apricot, albitite, and pottery stone can be used as appropriate.
上記合成樹脂系バインダーとしては、フェノール系・エ
ポキシ系・アクリル系などの一般的に耐熱性の良好なも
のを使用しその添加量は下塗り塗膜形成時、上記固形分
となる粉体相互が結合して塗膜形成可能な程度の量とす
る。As the above synthetic resin binder, we generally use one with good heat resistance, such as phenol, epoxy, or acrylic, and the amount of addition is determined so that when forming the undercoat, the solid content of the powder binds to each other. The amount should be enough to form a coating film.
（Ｂ）上塗り剤；
上記下塗り剤と同様にして、アルミナ及びシリカの少な
くとも一方が主成分とする粉体が得られるように、乾燥
原料をボールミルにて湿式粉砕加工をする。そして、１
８０〜３５０メツシユ（但し下塗り剤のものより小さな
粒径：望ましくは２００〜３２５メツシユ）の粒径の粉
体になったら、黒鉛系炭素質粉体を添加して十分に混合
させたあと、さらにバインダーを添加して軽く混合する
ここで上記乾燥原料としては、下塗り剤に使用したもの
と同−又は同類のものを使用する。また、黒鉛系炭素質
粉体には、人造黒鉛、及び、ウロコ状黒鉛・土状黒鉛な
どの天然黒鉛の他にカーボンブラックも含まれる。この
黒鉛系炭素質粉体の添加量は、２〜３０重量％とする。(B) Topcoat: In the same manner as the undercoat above, dry raw materials are wet-pulverized in a ball mill so as to obtain a powder containing at least one of alumina and silica as a main component. And 1
When the powder has a particle size of 80 to 350 mesh (however, the particle size is smaller than that of the primer: preferably 200 to 325 mesh), add graphite-based carbonaceous powder and mix thoroughly, and then Add the binder and mix gently.The dry raw materials used here are the same as or similar to those used for the undercoat. Further, the graphite-based carbonaceous powder includes carbon black as well as artificial graphite and natural graphite such as scaly graphite and earthy graphite. The amount of this graphite-based carbonaceous powder added is 2 to 30% by weight.
この数値範囲をはずれると本発明の効果を奏しがたい。If the value falls outside this numerical range, it will be difficult to achieve the effects of the present invention.
上記バインダーとしては下塗り剤に使用したものでもよ
いが、固形分となる粉体の粒径を下塗り剤のものより小
さくしであるので粉体相互が凝集しやすく、接着剤は補
助的であるので、安価な澱粉糊などの炭水化物系のもの
でよい。The above-mentioned binder may be the one used in the undercoat, but since the particle size of the solid powder is smaller than that of the undercoat, the powders tend to aggregate with each other, and the adhesive is only used as an auxiliary binder. , carbohydrate-based materials such as inexpensive starch glue may be used.
上記でそれぞれ得た下塗り剤及び上塗り剤の使用態様を
、第１図を参照にして次に説明をする。The manner in which the undercoat and topcoat obtained above are used will now be described with reference to FIG. 1.
溶融鉄を注入する前の溶鋼鍋のスラグが付着しやすい部
位、即ち内周面中間高さ部位に、下塗り剤を吹き付は又
は刷毛で塗布する。この塗布厚さは乾燥膜厚で１〜３ｍ
ｌ１１とする。ここで通常溶鋼鍋はライン途中なので５
００℃前後に熱せられておリ、塗膜は急激に乾燥しよう
とするが、粉体の粒径が粗く水分が粉体粒子間に保持さ
れており、通常の使用状態では剥離しない十分な接着強
度で内張の耐火レンガ壁１上に下塗り塗膜３が形成され
る。次に、上塗り剤を下塗塗膜３上に上塗り剤と同様の
手段で塗布する。この塗布厚さも下塗り塗膜同様、乾燥
膜厚で１〜３ｍｍとする。こうして形成され力上塗り塗
膜５には、強力なスラグの付着現象が発生しない。Before pouring molten iron, a primer is applied by spraying or brushing to a portion of the molten steel ladle where slag tends to adhere, that is, to the middle height portion of the inner peripheral surface. The coating thickness is 1 to 3 m in dry film thickness.
Let it be l11. Here, the molten steel pot is usually in the middle of the line, so 5
When heated to around 00℃, the paint film tends to dry rapidly, but the particle size of the powder is coarse and moisture is retained between the powder particles, so there is sufficient adhesion that will not peel off under normal usage conditions. An undercoat film 3 is formed on a strong inner firebrick wall 1. Next, a top coat is applied onto the undercoat film 3 in the same manner as the top coat. The coating thickness is also 1 to 3 mm in dry film thickness, similar to the undercoat film. The strong slag adhesion phenomenon does not occur in the topcoat film 5 formed in this way.
なお、こうして形成された下塗り・上塗り塗膜は、溶湯
を注入時１５００℃以上の高熱にさらされるため、溶鋼
鍋の繰り返し使用により溶損により厚みが薄くなってく
る。従って、通常は溶鋼鍋を３〜４回使用する度に再度
塗布を行なう。The undercoat and topcoat films formed in this way are exposed to high heat of 1500° C. or higher when the molten metal is poured, so the thickness becomes thinner due to erosion due to repeated use of the molten steel ladle. Therefore, the coating is usually reapplied every time the molten steel ladle is used 3 to 4 times.
〈発明の作用・効果〉
本発明の溶融鉄取り鍋の付着スラグ用剥離剤は、上記の
ような構成であるので下記のような作用効果を奏する。<Actions and Effects of the Invention> Since the stripping agent for slag attached to a molten iron ladle of the present invention has the above-described structure, it exhibits the following effects.
スラグ付着部位に本発明の下塗り剤と上塗り剤とからな
る剥離剤を順次塗布して、下塗り・上塗り塗膜を形成し
た溶融鉄取り鍋に、溶融鉄を注入して各種処理を経た後
、出銑・出鋼をした場合、取り鍋の内周面には従来と同
様スラグが付着する。しかし、スラグの上塗り塗膜に対
する付着力は耐火レンガに対する場合に比してはるかに
小さい。その理由は、断言できないが、上塗り塗膜中に
含まれる黒鉛系炭素質が自然発生的作用をしてスラグの
付着作用を阻害するものと推定される。A release agent consisting of an undercoat and a topcoat of the present invention is sequentially applied to the slag adhesion site, and molten iron is poured into a molten iron ladle in which an undercoat and a topcoat have been formed. After various treatments, the molten iron is removed. When pouring pig iron or tapping steel, slag adheres to the inner circumferential surface of the ladle, as in the past. However, the adhesion of slag to the top coat is much lower than that to refractory brick. Although the reason for this cannot be determined with certainty, it is presumed that the graphite-based carbonaceous substance contained in the top coat acts naturally to inhibit the adhesion of slag.
従って、本発明の♀ＩＩ！ｉ剤を使用すれば、溶融鉄取
り鍋のスラグ除去作業が容易となる。よって、スラグ除
去に際して、大きな動力を必要としないとともに、大き
な衝撃力を繰り返し取り鍋に加える必要もない、このた
め、内張耐火レンガの摩耗、損傷がほとんどなく、また
、スラグ塊や相応が飛び散ることもないので、作業環境
が大幅に改善され、また、取り鍋を十分に冷却しなくて
もスラグ除去作業が可能となり、取り鍋の回転時間の大
幅な短縮化も可能となる。Therefore, ♀II of the present invention! Using i-agent makes it easier to remove slag from a molten iron ladle. Therefore, when removing slag, a large amount of power is not required, and there is no need to repeatedly apply large impact force to the ladle.Therefore, there is almost no wear or damage to the lining refractory bricks, and slag lumps and particles are not scattered. As a result, the working environment is greatly improved, and the slag removal work can be performed without sufficiently cooling the ladle, and the ladle rotation time can be significantly shortened.
〈実施例〉
以下本発明をさらに理解するために実施例をあげて説明
をする。<Examples> In order to further understand the present invention, the present invention will be described below with reference to Examples.
各実施例は、下記組成の混合物を上記方法に従って、湿
式粉砕・混合して調製した。なお、「部」は重量部のこ
とであり、合計量は１００部に設定をしていない。Each Example was prepared by wet-pulverizing and mixing a mixture having the following composition according to the above method. Note that "parts" refer to parts by weight, and the total amount is not set to 100 parts.
（実施例１）
下塗り剤：
アルミナ三水和物・・・ ８０部朝鮮カオリ
ン・・・ １０部蛙目粘土・・・
１０部合成樹脂接着剤・・・
１０部上塗り剤：
アルミナ酸水和物・・・ ２５部アルミナ・
・・ ２５部±状黒鉛・・・
５部デンプン糊・・・
１０部（実施例２）
下塗り剤：
溶融石英・・・ ７０部アルミナ・
・・ １５部蛙目ケイ砂・・・
１５部合成樹脂接着剤・・・
５部上塗り剤：
下塗り剤のと同一組成に加えて土状
黒鉛を５部添加したもの。(Example 1) Primer: Alumina trihydrate... 80 parts Korean kaolin... 10 parts frog's eye clay...
10 parts synthetic resin adhesive...
10 parts Top coating agent: Alumina acid hydrate... 25 parts Alumina...
・・25 parts± shaped graphite・・
5 parts starch paste...
10 parts (Example 2) Primer: Fused silica... 70 parts Alumina...
・・Part 15 Frog-eye silica sand・・
15 parts synthetic resin adhesive...
5 parts top coat: Same composition as the base coat plus 5 parts of earthy graphite.
（実施例３） 実施例２において溶融石英の代りに天 然ケイ砂を使用したもの。(Example 3) In Example 2, heaven was used instead of fused silica. Made using natural silica sand.
上記各実施例の剥離剤は取り鍋を横転した状態でスプレ
ィガンを用いて取り鍋の内周面に下塗り・上塗り塗膜が
２〜３ｍｍとなるように塗布した。The release agent of each of the above Examples was applied to the inner circumferential surface of the ladle using a spray gun with the ladle turned over so that the undercoat/topcoat film was 2 to 3 mm thick.
溶融鉄を注入しテストをしたが、付着スラグはいずれの
場合もハンマーで軽く叩くだけで容易に上塗り塗膜面か
ら除去できた。Tests were conducted by injecting molten iron, and in each case the adhered slag could be easily removed from the topcoat surface by just tapping it lightly with a hammer.
第１図は本発明の剥離剤を塗布した溶融鉄取り鍋の縦断
面図である。
１・・・内張耐火レンガ
３・・・下塗り塗膜
５・・・上塗り塗膜FIG. 1 is a longitudinal sectional view of a molten iron ladle coated with the release agent of the present invention. 1... Lining refractory brick 3... Undercoat coating film 5... Topcoat coating film
Claims (1)
を構成する粉体の粒径が前者＞後者の関係にあることを
特徴とする溶融鉄取り鍋の付着スラグ用剥離剤。 （Ａ）固形成分がアルミナ及びシリカの少なくとも一方
を主成分とする粉体からなり、さらに合成樹脂系バイン
ダーが添加されている下塗り剤。 （Ｂ）固形成分が前記下塗り剤で使用したもの又は同類
のものに加えて黒鉛系炭素質粉体が２〜３０重量％添加
された混合粉体からなり、さらにバインダーが必要によ
り添加されている上塗り剤[Claims] A molten iron ladle comprising the following undercoating agent (A) and topcoating agent (B), characterized in that the particle size of the powder constituting each agent is in the relationship of the former > the latter. Remover for adhering slag. (A) An undercoat in which the solid component consists of a powder whose main component is at least one of alumina and silica, and further contains a synthetic resin binder. (B) The solid component consists of a mixed powder in which 2 to 30% by weight of graphite-based carbonaceous powder is added in addition to the one used in the above-mentioned undercoat or a similar one, and a binder is further added as necessary. Topcoat
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3657587A JPS63204097A (en) | 1987-02-19 | 1987-02-19 | Release agent for extraneous slag of molten iron ladle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3657587A JPS63204097A (en) | 1987-02-19 | 1987-02-19 | Release agent for extraneous slag of molten iron ladle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63204097A true JPS63204097A (en) | 1988-08-23 |
Family
ID=12473566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3657587A Pending JPS63204097A (en) | 1987-02-19 | 1987-02-19 | Release agent for extraneous slag of molten iron ladle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63204097A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016093237A1 (en) * | 2014-12-12 | 2016-06-16 | 黒崎播磨株式会社 | Release material and method for applying same |
| CN109550926A (en) * | 2018-12-14 | 2019-04-02 | 唐山钢铁集团有限责任公司 | A kind of processing method of slag adhesion ladle |
| CN110496936A (en) * | 2019-09-26 | 2019-11-26 | 中冶节能环保有限责任公司 | A kind of casting slag machine release agent and preparation method |
-
1987
- 1987-02-19 JP JP3657587A patent/JPS63204097A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016093237A1 (en) * | 2014-12-12 | 2016-06-16 | 黒崎播磨株式会社 | Release material and method for applying same |
| JP2016113655A (en) * | 2014-12-12 | 2016-06-23 | 黒崎播磨株式会社 | Release material and method for applying the same |
| CN109550926A (en) * | 2018-12-14 | 2019-04-02 | 唐山钢铁集团有限责任公司 | A kind of processing method of slag adhesion ladle |
| CN109550926B (en) * | 2018-12-14 | 2021-01-01 | 唐山钢铁集团有限责任公司 | Treatment method of slag adhesion preventing ladle |
| CN110496936A (en) * | 2019-09-26 | 2019-11-26 | 中冶节能环保有限责任公司 | A kind of casting slag machine release agent and preparation method |
| CN110496936B (en) * | 2019-09-26 | 2021-08-10 | 中冶节能环保有限责任公司 | Mold release agent for slag casting machine and preparation method |
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