JPS5973473A - Coating material for coke oven door - Google Patents
Coating material for coke oven doorInfo
- Publication number
- JPS5973473A JPS5973473A JP57182145A JP18214582A JPS5973473A JP S5973473 A JPS5973473 A JP S5973473A JP 57182145 A JP57182145 A JP 57182145A JP 18214582 A JP18214582 A JP 18214582A JP S5973473 A JPS5973473 A JP S5973473A
- Authority
- JP
- Japan
- Prior art keywords
- coating material
- coke oven
- oven door
- adhesion
- weight
- 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
Landscapes
- Ceramic Products (AREA)
- Coke Industry (AREA)
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】
防止できるコーティング材の改良された組成物に係り、
従来のコークス炉用耐人物自体を変更したり、取シ換え
ることな゛く、かつ既設の該ドアー用耐火物の特徴・特
性などを損うことなく、該ドアー用耐大物の表面にコー
ティングすることによって、カーボン付着を大幅に低減
できる新規なコーティング材奈提供することを目的とす
るものである。DETAILED DESCRIPTION OF THE INVENTION An improved composition of a coating material that can prevent
To coat the surface of a large refractory for a door without changing or replacing the conventional refractory for a coke oven, and without damaging the characteristics and properties of the existing refractory for the door. The purpose of this invention is to provide a new coating material that can significantly reduce carbon adhesion.
一般にコークス炉ドアーのカーボン付着はドアーの密着
性を悪くシ，ガスリークを起す原因となり、ひいてはド
アーのセットを困難にする。Generally, carbon adhesion on a coke oven door deteriorates the adhesion of the door and causes gas leakage, making it difficult to set the door.
また、現在，付着したカーボンを機械的に強制除去する
こともおこなわれているが，付着が著しく強固なため，
この除去作業に多くの時間がかかるとともに，ドアーを
損傷し寿命を低下させている状況である。このため従来
からこのカーボン付着防止対策が注目されてきた。Currently, attached carbon is forcibly removed mechanically, but the adhesion is extremely strong.
This removal work not only takes a lot of time, but also damages the door and shortens its lifespan. For this reason, measures to prevent carbon adhesion have been attracting attention.
その対策技術のうち．カーボン防着防止用コーテイング
材として表面をガラス化して平滑にする釉薬系の゛コー
ティング材が試みられているが、
（１） キレツ発生が著しいので表面の平滑度がきわ
めて悪く，キレツ部分からカーボンが付着しやすい、
（コ） 焼付け（ガラス化）のために、高温予備処理
が必要であり、萬価になり、生産能率上好筐しくない。Among the countermeasure techniques. Glaze-based coating materials that vitrify and smooth the surface have been tried as coating materials to prevent carbon adhesion, but (1) the occurrence of cracks is significant, so the surface smoothness is extremely poor, and carbon is removed from the cracks. (j) High-temperature pretreatment is required for baking (vitrification), which increases the price and is not good for production efficiency.
等の諸欠点が認められており，いまだ有効なコーテイン
グ材が開発されていないのが現状である。Various drawbacks have been recognized, and the current situation is that no effective coating material has been developed yet.
このような問題点を完全に解決すべく本発明者等は鋭意
研究の結果１本発明を完成したのである。すなわち、本
発明は黒鉛粉末７０〜ＩＯ重量％と無機バインダー溶液
３０−９０重量％からなるコークス炉ドア用コーテイン
グ材に関する。In order to completely solve these problems, the present inventors completed the present invention as a result of intensive research. That is, the present invention relates to a coating material for a coke oven door comprising 70-90% by weight of graphite powder and 30-90% by weight of an inorganic binder solution.
本発明に係るコークス炉ドアー用コーテイング材は、黒
鉛が付着カーボン源となるタール（石炭の熱分解によっ
て発生）に濡れに＜＜、かつ黒鉛の減摩性により付着カ
ーボンとのすべり性が良好であるためにカーボン付着、
防止に対して効果が太きいという知見に基゛づくもので
あって、単なる無定形炭素ではこのような特性を有しな
いため黒鉛に限定した□のである。The coating material for a coke oven door according to the present invention has graphite that is resistant to wetting by tar (generated by thermal decomposition of coal), which is a source of adhesion carbon, and has good sliding properties with adhesion carbon due to the antifriction properties of graphite. There is carbon adhesion,
This is based on the knowledge that it is highly effective for prevention, and since simple amorphous carbon does not have these properties, we limited it to graphite.
また、無機バインダー溶液とは、コロイダルシリカ、珪
酸カリ、珪酸ソーダ、アルミナゾル。Inorganic binder solutions include colloidal silica, potassium silicate, sodium silicate, and alumina sol.
リチウムシリケート、第１リン酸アルミニウム等の溶液
を包含し、その他市販の無機接着材の適格品が採用でき
る。Other suitable commercially available inorganic adhesives may be used, including solutions such as lithium silicate and monoaluminum phosphate.
０．３ ｍ１ｍ以下の鱗状黒鉛粉末と各種無機バインダ
ー溶液の配合を次表に示す。実験の結果これらの配合割
合範囲は十分に良好な作業性を有しカーボン付着を防止
できた。なお、参考までに残留黒鉛量を付記する。The following table shows the composition of scaly graphite powder of 0.3 ml or less and various inorganic binder solutions. As a result of experiments, these mixing ratio ranges had sufficiently good workability and could prevent carbon adhesion. The amount of residual graphite is also noted for reference.
以上の実験の結果から、黒鉛の粒径θ、３ｍμ以下のも
の１０〜７０重１１％、無機バインダー溶液５ｏ−ｑｏ
重量％を配合したものが１本発明の効果を発揮するのに
好ましいと判定した。From the results of the above experiments, the graphite particle size θ, 3 mμ or less is 10 to 70% by weight, 11% by weight, and the inorganic binder solution is 5o-qo.
It was determined that a compound containing 1% by weight was preferable for exhibiting the effects of the present invention.
なお５本コーテイング材の最適粒度の測定結果は下記の
とおりであったが、粉砕、混線工程のバラツキを若干配
慮し、この比率を中心として管理すると最高の品質が保
持できることが実験の結果判明した。すなわち、
粒径 ０，２９７〜０．ｌＱ９ｍ１ｍ １０重量％
粒径 ０．／ ＋ ９〜０．０７４１ｍ１ｍ １７
重量％粒径 〈０．０り４ｔｍ／ｍ ７３
重１％したがって、黒鉛粉末を骨材にし、硬化剤として
前記無機バインダー溶液を配合したコーテイング材をコ
ークス炉ドアー表面に吹付け、あるいはハケ塗り等でコ
ーティングして乾燥することによってカーボン付着を大
幅に低減できる。The measurement results for the optimal particle size for the five-coating material were as shown below, and the experiment revealed that the best quality could be maintained if this ratio was mainly controlled, taking into account the variations in the crushing and mixing processes. . That is, particle size 0,297-0. lQ9m1m 10% by weight
Particle size 0. / + 9~0.0741m1m 17
Weight% particle size <0.0ri 4tm/m 73
Therefore, carbon adhesion can be significantly reduced by spraying a coating material containing graphite powder as aggregate and blending the above-mentioned inorganic binder solution as a hardening agent onto the surface of the coke oven door, or coating it with a brush and drying. Can be reduced.
コーティング厚さとしては、乾燥後の膜厚（層厚）がＱ
、λｍ／Ｉｎ以上になるように施工するのが効果的であ
り、これはコーテイング材中の黒鉛量によって調節でき
、場合によってはコ回以上の重ね施工（吹付け、塗布な
ど）によっても適当厚さに調節することができる。As for the coating thickness, the film thickness after drying (layer thickness) is Q
, λm/In or more is effective, and this can be adjusted by the amount of graphite in the coating material. It can be adjusted to
次に本発明のコーテイング材の品質を例示する。Next, the quality of the coating material of the present invention will be illustrated.
黒鉛−コロイダルシリカ系（気硬性）
化学成分 ０（黒鉛）１７４１％
８１０、 ９３チ
１ｉｏｃ−コダ時間 ３０ｋｇ／ｄ
ｋ００Ｃ−３時間 ２！ｒｋｇ／儂１実施例
θ、Ｊ ｍ／ｍ以下の鱗状黒鉛ココ重量％とバイン２゛
−としてコロイダルシリカ（含水率ｔ、 ｓ ％）７３
重ｊｔ％を間合したコーテイング材Ａ、および鱗状黒鉛
θ、Ｊ ｍ／ｍ以下／７重量％と、珪酸ソーダ溶液（含
水率５０チ）ｇＪ重世チとを調合シタコーテイング材Ｂ
を、コークス炉用耐大物表面（キャスタブルおよびれん
が）にコーティング厚さがθ、λ〜０．！； ｍ／ｍに
なるように吹付は施工し、自然乾燥後実用に供した。Graphite-colloidal silica system (air hardness) Chemical composition 0 (graphite) 1741% 810, 93chi 1ioc-koda time 30kg/d k00C-3 hours 2! rkg/I 1 Example θ, J m/m or less scaly graphite coco weight % and binder 2゛- colloidal silica (water content t, s %) 73
Coating material B is prepared by mixing coating material A with a weight of jt%, scaly graphite θ, J m/m or less/7% by weight, and sodium silicate solution (water content 50 inches) gJ heavy weight.
The coating thickness is θ, λ ~ 0. ! ; Spraying was carried out so that the ratio was m/m, and after natural drying, it was used for practical use.
実用結果は本発明に係るコーティング柱入およびＢとも
に、従来のドアーに比較してカーボン付着率（面積比に
よる目視観察）が／、１％以下に顕著、に低減し、また
付着しているカーボン付着力（セン断強度）も従来の／
／４Ｉ以下に減少し、簡単に除去できる状態であった。Practical results show that the carbon adhesion rate (visual observation based on area ratio) of both Coatings and Coatings B according to the present invention was significantly reduced to less than 1% compared to conventional doors, and the carbon adhesion rate was significantly reduced to less than 1%. Adhesion strength (shearing strength) is also lower than that of conventional /
/4I or less, and was in a state where it could be easily removed.
（１） コークス炉ドアーがキャスタブル耐火物（Ａ
１１０３４１１４％、Ｓｉｐ、ダ１％、 ＭｇＯ７チ、
最高使用温度／参ＯθＣ）の場合
（コ） コークス炉ドアーがシャモットれんが（ＢＫ３
グ、ｐ、ｉ、０，３１．ざチ、気孔率２１．５％）の場
合
付着力とは付着しているカーボンのセン断強度を示し、
ドア一本体表面にコーティング打入およびＢをコーティ
ングしたことを記号十で示している。(1) The coke oven door is made of castable refractory (A
11034114%, Sip, Da1%, MgO7chi,
When the maximum operating temperature is 0θC) (C) The coke oven door is made of chamotte brick (BK3
g,p,i,0,31. In the case of porosity 21.5%), adhesion strength refers to the shear strength of the attached carbon,
The symbol 0 indicates that the surface of the door body was coated with B.
このように、本発明のコークス炉ドアー用コーテイング
材は実用上において、カーボン付着を著しく低減でき、
コークス炉ドアーの損傷を防止し、耐用を向上すること
が明らかになり、本発明の効果が確゛認できた。In this way, the coke oven door coating material of the present invention can significantly reduce carbon adhesion in practical use.
It became clear that damage to the coke oven door was prevented and its durability was improved, and the effects of the present invention were confirmed.
すなわち、本発明コーテイング材は。That is, the coating material of the present invention.
（１） コークス炉ドアーのカーボン付着を大幅ニ低
減でき、これによってドアーの寿命延長がはかれる、
（，２）従来材質のドアーあるいは既設ドアーに塗布、
または吹付けして、乾燥しただけで使用でき、焼付けの
ような高温予備処理が不要で。(1) Carbon adhesion on coke oven doors can be significantly reduced, thereby extending the life of the door. (2) Application to doors made of conventional materials or existing doors;
Alternatively, it can be used just by spraying and drying, and there is no need for high-temperature pretreatment such as baking.
施工が簡単かつ低コストで実施できる、（３）従来のド
アー用耐人物を変更したシ取シ換えることなしに、カー
ボン付着を低減てきるので、対策が簡単・容易であって
人手、資材。Construction is easy and low-cost. (3) Carbon adhesion can be reduced without replacing the conventional door support, so the countermeasure is simple and easy, requiring less manpower and materials.
費用の面で有効である、 等、工業上、きわめて効果の太きいものである。cost effective; etc., it is extremely effective industrially.
特許出願人 品川白煉瓦株式会社Patent applicant Shinagawa White Brick Co., Ltd.
Claims (1)
９０重ｉ％からなるコークス炉ドアー用コーテイング材
。Graphite powder 70~10% by weight and inorganic binder solution 30~
Coating material for coke oven doors consisting of 90% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57182145A JPS5973473A (en) | 1982-10-19 | 1982-10-19 | Coating material for coke oven door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57182145A JPS5973473A (en) | 1982-10-19 | 1982-10-19 | Coating material for coke oven door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5973473A true JPS5973473A (en) | 1984-04-25 |
| JPS6340463B2 JPS6340463B2 (en) | 1988-08-11 |
Family
ID=16113140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57182145A Granted JPS5973473A (en) | 1982-10-19 | 1982-10-19 | Coating material for coke oven door |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5973473A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6372786A (en) * | 1986-09-17 | 1988-04-02 | Shinagawa Refract Co Ltd | Door for coke oven |
| EP0831075A3 (en) * | 1992-06-12 | 2000-06-07 | MOLTECH Invent S.A. | Carbon-containing ramming paste for use in aluminium production cells |
| CN108456005A (en) * | 2018-04-20 | 2018-08-28 | 郑州大学 | Graphite antioxidant coating and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55131086A (en) * | 1979-03-31 | 1980-10-11 | Nippon Steel Corp | Coke oven |
-
1982
- 1982-10-19 JP JP57182145A patent/JPS5973473A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55131086A (en) * | 1979-03-31 | 1980-10-11 | Nippon Steel Corp | Coke oven |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6372786A (en) * | 1986-09-17 | 1988-04-02 | Shinagawa Refract Co Ltd | Door for coke oven |
| JPH0225391B2 (en) * | 1986-09-17 | 1990-06-01 | Shinagawa Refractories Co | |
| EP0831075A3 (en) * | 1992-06-12 | 2000-06-07 | MOLTECH Invent S.A. | Carbon-containing ramming paste for use in aluminium production cells |
| CN108456005A (en) * | 2018-04-20 | 2018-08-28 | 郑州大学 | Graphite antioxidant coating and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6340463B2 (en) | 1988-08-11 |
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