JPH02212356A - Furnace repairing binder - Google Patents

Furnace repairing binder

Info

Publication number
JPH02212356A
JPH02212356A JP1032790A JP3279089A JPH02212356A JP H02212356 A JPH02212356 A JP H02212356A JP 1032790 A JP1032790 A JP 1032790A JP 3279089 A JP3279089 A JP 3279089A JP H02212356 A JPH02212356 A JP H02212356A
Authority
JP
Japan
Prior art keywords
pitch
binder
alkylphenol
furnace
tar
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
Application number
JP1032790A
Other languages
Japanese (ja)
Other versions
JPH0625029B2 (en
Inventor
Hiroshi Okamoto
弘 岡本
Katsutoshi Oda
小田 勝利
Kenji Kitatani
北谷 賢司
Yukihiko Goto
後藤 幸彦
Hiroshi Sakamoto
浩 坂本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harima Ceramic Co Ltd
Nippon Steel Corp
Nippon Steel Chemical and Materials Co Ltd
Original Assignee
Harima Ceramic Co Ltd
Nippon Steel Corp
Nippon Steel Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Harima Ceramic Co Ltd, Nippon Steel Corp, Nippon Steel Chemical Co Ltd filed Critical Harima Ceramic Co Ltd
Priority to JP1032790A priority Critical patent/JPH0625029B2/en
Publication of JPH02212356A publication Critical patent/JPH02212356A/en
Publication of JPH0625029B2 publication Critical patent/JPH0625029B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Compositions Of Oxide Ceramics (AREA)
  • Ceramic Products (AREA)
  • Sealing Material Composition (AREA)

Abstract

PURPOSE:To obtain the furnace repairing binder having a high curing rate, high-temp. fluidity, and a high-temp. adhesive property by using alkylphenols and pitch as the base of the binder. CONSTITUTION:The furnace repairing binder consists essentially of alkylphenols and pitch. An alkylphenol consisting essentially of a 10 or 11C alkylphenol is preferably used as the alkylphenol. Tar acid components after removing the fractions having a lower b.p. than xylenol is most preferably used. Tar-based soft pitch having <=70 deg.C softening point is preferably used as the pitch, and refined pitch obtained by removing quinoline-insoluble matter from the tar-based soft pitch and/or impregnate pitch obtained by heat-treating the refined pitch are more preferably used. In this case, 30-70wt.% of the alkylphenol and 70-30wt.% of the pitch are preferably mixed.

Description

【発明の詳細な説明】 [産業上の利用分野] この発明は、操業時に高温に晒される種々の炉、例えば
転炉の補修材を製造する際に使用されるバインダーに係
り、特に熱間補修材を製造する際に有利に使用される炉
補修材用バインダーに関する。
Detailed Description of the Invention [Industrial Application Field] The present invention relates to a binder used in manufacturing repair materials for various furnaces that are exposed to high temperatures during operation, such as converters, and particularly for hot repair. The present invention relates to a binder for furnace repair materials that is advantageously used in manufacturing materials.

[従来の技術] 高温溶融金属を収容する転炉等の炉の耐火物は、その炉
操業条件によっているいろな部分が侵食され、局部的に
損傷箇所が生じる。そして、このような炉の損傷箇所を
補修するための補修材は、アルミナ、マグネシア、カー
ボランダム、コークス、粘土、シリカ、珪石等の耐火骨
材を主成分とするものであるが、この耐火骨材のみでは
補修材として使用できず、このために適当な可塑性や粘
着性を付与すべくバインダーを添加し混練して適当な形
状にし、炉の損傷箇所に応じて使分けができるように、
例えば吹付は用、流し込み用、投込み用等として使い分
けられている。
[Prior Art] Refractories of furnaces such as converters that house high-temperature molten metal are eroded in various parts depending on the operating conditions of the furnace, resulting in local damage. The repair materials used to repair such damaged parts of furnaces are mainly composed of refractory aggregates such as alumina, magnesia, carborundum, coke, clay, silica, and silica stone. The material alone cannot be used as a repair material, so a binder is added to give it appropriate plasticity and adhesiveness, and it is kneaded into an appropriate shape so that it can be used depending on the damaged area of the furnace.
For example, spraying is used for dipping, pouring, and pouring.

このうち、特(投込み用補修材は、炉操業の合間をぬっ
て熱間補修材として使用されるものであり、補修時間が
あまり長くなると炉操業の稼動性の低下を招くことから
、高温流動性に優れていて速やかに炉の損傷箇所に行き
わたり、硬化速度が速く、しかも、高温接着性に優れて
いることが要求されている。そして、このような炉補修
材の性能は使用されたバインダーの性能に負うところが
大きい。
Among these, special injection repair materials are used as hot repair materials during intervals between furnace operations. Furnace repair materials are required to have excellent fluidity, quickly spread to damaged areas of the furnace, have a fast curing speed, and have excellent high-temperature adhesive properties. This is largely due to the performance of the binder.

そして、このような目的で炉補修材のバインダーとして
使用されるものとして、コールタール等のタール系のも
のやフェノール樹脂等の樹脂系のもの(特公昭59−1
7,072号公報)が知られている。
Tar-based binders such as coal tar and resin-based binders such as phenol resins are used as binders for furnace repair materials for this purpose.
No. 7,072) is known.

しかしながら、タール系のものは、その高温流動性に優
れてはいるものの、硬化速度が遅くて硬化までに長時間
を必要とし、反対に、樹脂系のものは、硬化速度は速い
ものの、高温流動性と高温接着性に劣るという問題があ
った。
However, although tar-based materials have excellent high-temperature fluidity, they have a slow curing speed and require a long time to harden.On the other hand, resin-based materials have a fast curing speed but have high-temperature fluidity. There was a problem that it had poor adhesive properties and high temperature adhesion.

[発明が解決しようとする課題] 従って、本発明の目的は、熱間補修材として使用された
際に、単に硬化速度が速いというだけでなく、高温流動
性に優れており、しかも、高温接着性に優れている炉補
修材用バインダーを提供することにある。
[Problems to be Solved by the Invention] Therefore, an object of the present invention is to provide not only a fast curing speed but also excellent high-temperature fluidity and high-temperature adhesive properties when used as a hot repair material. The purpose of the present invention is to provide a binder for furnace repair materials that has excellent properties.

[課題を解決するための手段] すなわち、本発明は、アルキルフェノール類とピッチ類
とを主成分とする、常温塊状固形物であって高温流動性
を有する炉補修材の製造に使用される炉補修材用バイン
ダーである。
[Means for Solving the Problems] That is, the present invention provides a furnace repair material that is a blocky solid at room temperature and has high-temperature fluidity and is mainly composed of alkylphenols and pitches. It is a binder for materials.

本発明で使用するアルキルフェノール類としては、炭素
数8以上、好ましくは炭素数9以上、より好ましくは炭
素数10又は11のアルキルフェノールを主成分とする
ものがよい。特に好ましくはキシレノールまでの留分を
除去した後のタール酸成分である。
The alkylphenols used in the present invention are those whose main component is an alkylphenol having 8 or more carbon atoms, preferably 9 or more carbon atoms, and more preferably 10 or 11 carbon atoms. Particularly preferred is the tar acid component after removing the fraction up to xylenol.

また、上記アルキルフェノール類と共に使用するピッチ
類としては、タール系や石油系の軟ピッチ、中ピッチ、
硬ピッチ等を挙げることができるが、好ましくは軟化点
70’C以下のタール系軟ピッチであり、より好ましく
はこのタール系軟ピッチからキノリン不溶分を除去して
得られた精製ピッチ及び/又はこの精製ピッチを熱処理
して得られた含浸ピッチである。このピッチ類について
は、その低沸点成分を除去することによりその高温接着
性が向上するが、過度に除去しすぎるとその粘度が高く
なりすぎて高温流動性が低下するという問題が生じるの
で、軟化点を一10〜50℃前後とするのがよい。
In addition, pitches to be used with the above alkylphenols include tar-based and petroleum-based soft pitches, medium pitches,
Examples include hard pitch, but preferably tar-based soft pitch with a softening point of 70'C or less, and more preferably purified pitch and/or obtained by removing quinoline-insoluble content from this tar-based soft pitch. This is an impregnated pitch obtained by heat-treating this purified pitch. The high-temperature adhesion of these pitches can be improved by removing their low-boiling components, but if too much is removed, the viscosity becomes too high and the high-temperature fluidity decreases, so it is difficult to soften the pitch. It is preferable to set the temperature at a temperature of about -10 to 50°C.

そして、上記アルキルフェノール類とピッチ類の配合割
合については、ピッチ類の比率が増すほどその高温接着
性が向上し、硬化速度が低下する傾向があるので、好ま
しくはアルキルフェノール類が30〜70重量%、より
好ましくは35〜65重但%であり、ピッチ類が70〜
30重母%、より好ましくは65〜35重母%である。
Regarding the blending ratio of the alkylphenols and pitches, the higher the ratio of pitches, the higher the high-temperature adhesion and the lower the curing speed. More preferably, it is 35 to 65% by weight, and the pitches are 70 to 65%.
The content is 30%, more preferably 65 to 35%.

本発明の炉補修材用バインダーについては、必要により
炭化促進剤として、例えば酸化モリブデン、酸化タング
ステン、酸化ニオブ、酸化ジルコニウム等の金属酸化物
や、水酸化ジルコニウム等の金属水酸化物等の種々の金
属化合物を添加することができる。この目的で使用する
金属化合物の添加量は、上記アルキルフェノール類とピ
ッチ類の合計100重量部に対して通常5重量部以下、
好ましくは3重量部以下である。このような金属化合物
を炭化促進剤として添加することにより、高温接着性が
より一層向上する。
Regarding the binder for furnace repair materials of the present invention, various metal oxides such as molybdenum oxide, tungsten oxide, niobium oxide, and zirconium oxide, and metal hydroxides such as zirconium hydroxide may be used as carbonization accelerators if necessary. Metal compounds can be added. The amount of the metal compound used for this purpose is usually 5 parts by weight or less per 100 parts by weight of the above alkylphenols and pitches.
Preferably it is 3 parts by weight or less. By adding such a metal compound as a carbonization accelerator, high temperature adhesiveness is further improved.

本発明の炉補修材用バインダーは、上記アルキルフェノ
ール類とピッチ類とを所定の割合で配合し、加熱下に混
練して予め調製しておくこともできるし、また、炉補修
材の調製時に耐火骨材にこれらアルキルフェノール類と
ピッチ類とを所定の割合で配合し、加熱下に混練しても
よい。
The binder for furnace repair materials of the present invention can be prepared in advance by blending the above-mentioned alkylphenols and pitches in a predetermined ratio and kneaded under heating. These alkylphenols and pitches may be blended into the aggregate in a predetermined ratio and kneaded under heating.

[作用] 本発明の炉補修材用バインダーは、そのアルキルフェノ
ール類が高温時にフェノール樹脂に類似した作用を発揮
し、ピッチ類が有する高温流動性や高温接着性を損なう
ことなくその硬化速度を改善し得るものと考えられる。
[Function] In the binder for furnace repair materials of the present invention, the alkylphenols exhibit an action similar to that of phenolic resins at high temperatures, and improve the curing speed without impairing the high-temperature fluidity and high-temperature adhesive properties of pitches. It is considered to be something that can be obtained.

[実施例] 以下、実施例及び比較例に基いて、本発明を具体的に説
明する。
[Examples] The present invention will be specifically described below based on Examples and Comparative Examples.

実施例1〜6 アルキルフェノール類として炭素数9〜11のアルキル
フェノールを主成分とするタール酸を使用し、ピッチ類
として軟化点70℃以下のタール系軟ピッチからキノリ
ン不溶分を除去して得られた精製ピッチ又はこの精製ピ
ッチを熱処理して得られた含浸ピッチを使用し、また、
炭化促進剤として酸化モリブデン(8003)又は水酸
化ジルコニアム(ZrO(OH)2 )を使用し、第1
表に示す割合で配合して60℃で混練し、実施例1〜6
のバインダー組成物を調製した。
Examples 1 to 6 Tar acid containing an alkylphenol having 9 to 11 carbon atoms as the main component was used as the alkylphenol, and the pitch was obtained by removing the quinoline insoluble content from tar-based soft pitch with a softening point of 70°C or less. Using purified pitch or impregnated pitch obtained by heat treating this purified pitch,
Using molybdenum oxide (8003) or zirconia hydroxide (ZrO(OH)2) as a carbonization accelerator, the first
Examples 1 to 6 were mixed at the ratio shown in the table and kneaded at 60°C
A binder composition was prepared.

得られた各実施例のバインダー組成物10重量部を耐火
骨材100重量部に混合し、シンプソンミキサーを使用
して60℃で混練し、約30!rIIrIφの大きさの
団子状炉補修材に形成した。
10 parts by weight of the obtained binder compositions of each example were mixed with 100 parts by weight of the refractory aggregate, and kneaded at 60°C using a Simpson mixer, resulting in approximately 30 parts by weight of the binder composition of each example. It was formed into a dumpling-shaped furnace repair material with a size of rIIrIφ.

一方、マグネシア・カーボン(8gO/C)煉瓦を約1
60mX160履X30#1111の大きざに切出して
試験片を作製し、これら各試験片を第1表に示す設定温
度に保持された電気炉に入れて焼成し、各試験片の上に
各実施例のバインダー組成物を使用して調製された団子
状の各炉補修材を載置した。
On the other hand, about 1 magnesia carbon (8gO/C) brick
A test piece was prepared by cutting it into a size of 60 m x 160 shoes x 30 #1111, and each test piece was fired in an electric furnace maintained at the set temperature shown in Table 1. Each dumpling-shaped furnace repair material prepared using the binder composition was placed.

各試験片の上に各炉補修材を載置すると直ちに発煙し、
この発煙は数分でなくなった。発煙がおさまった後、各
試験片の上に載置された各炉補修材を電気炉の中でつつ
き、各試験片に対する各炉補修材の接着性を調べた。結
果を第1表に示す。
When each furnace repair material was placed on top of each test piece, it immediately emitted smoke.
This fuming dissipated within a few minutes. After the smoke subsided, each furnace repair material placed on each test piece was poked in an electric furnace to examine the adhesion of each furnace repair material to each test piece. The results are shown in Table 1.

また、電気炉内から各試験片を取出して放冷し、各試験
片上で拡がった各団子状炉補修材の展開面積を測定し、
高温流動性を調べた。結果を第1表に示す。
In addition, each test piece was taken out from the electric furnace and allowed to cool, and the area of each dumpling-shaped furnace repair material spread on each test piece was measured.
The high temperature fluidity was investigated. The results are shown in Table 1.

比較例1及び2 バインダーとしてコールタール(比較例1)、及び、フ
ェノール樹脂10重量%及び上記各実施例で使用したア
ルキルフェノール50重量%並びに精製ピッチ40重量
%の組成を有するもの(比較例2)を使用した以外は、
上記各実施例の場合と同様にして炉補修材を調製し、そ
の性能を調べた。結果を第1表に示す。
Comparative Examples 1 and 2 Coal tar as a binder (Comparative Example 1), and one having a composition of 10% by weight of phenolic resin, 50% by weight of alkylphenol used in each of the above examples, and 40% by weight of purified pitch (Comparative Example 2) Except for using
Furnace repair materials were prepared in the same manner as in the above examples, and their performance was examined. The results are shown in Table 1.

[発明の効果] 本発明のバインダーは、これを耐火骨材に配合すること
により、硬化速度が速いだけでなく、高温流動性及び高
温接着性に優れた熱間補修用の炉補修材を与えるもので
あり、炉補修材用バインダーとして有用なものである。
[Effects of the Invention] By blending the binder with refractory aggregate, the binder of the present invention provides a furnace repair material for hot repair that not only has a fast curing speed but also has excellent high-temperature fluidity and high-temperature adhesion. It is useful as a binder for furnace repair materials.

Claims (4)

【特許請求の範囲】[Claims] (1)アルキルフェノール類とピッチ類とを主成分とす
ることを特徴とする、常温塊状固形物であって高温流動
性を有する炉補修材の製造に使用される炉補修材用バイ
ンダー。
(1) A binder for furnace repair materials, which is characterized by containing alkylphenols and pitches as main components, and is used in the production of furnace repair materials that are blocky solids at room temperature and have high-temperature fluidity.
(2)アルキルフェノール類が、トリメチルフェノール
又は炭素数10以上のアルキルフェノールを主成分とす
るタール酸成分である請求項1記載の炉補修材用バイン
ダー。
(2) The binder for furnace repair materials according to claim 1, wherein the alkylphenol is a tar acid component whose main component is trimethylphenol or an alkylphenol having 10 or more carbon atoms.
(3)ピッチ類が、軟化点70℃以下のタール系軟ピッ
チからキノリン不溶分を除去して得られた精製ピッチ及
び/又はこの精製ピッチを熱処理して得られた含浸ピッ
チである請求項1又は2記載の炉補修材用バインダー。
(3) Claim 1 wherein the pitch is a purified pitch obtained by removing quinoline insoluble matter from a tar-based soft pitch with a softening point of 70°C or less and/or an impregnated pitch obtained by heat-treating this purified pitch. Or the binder for furnace repair materials according to 2.
(4)アルキルフェノール類30〜70重量%とピッチ
類70〜30重量%とからなり、必要により炭化促進剤
として金属化合物を含有する請求項1ないし3のいずれ
かに記載の炉補修材用バインダー。
(4) The binder for furnace repair materials according to any one of claims 1 to 3, which comprises 30 to 70% by weight of alkylphenols and 70 to 30% by weight of pitches, and optionally contains a metal compound as a carbonization accelerator.
JP1032790A 1989-02-14 1989-02-14 Binder for furnace repair material Expired - Lifetime JPH0625029B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1032790A JPH0625029B2 (en) 1989-02-14 1989-02-14 Binder for furnace repair material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1032790A JPH0625029B2 (en) 1989-02-14 1989-02-14 Binder for furnace repair material

Publications (2)

Publication Number Publication Date
JPH02212356A true JPH02212356A (en) 1990-08-23
JPH0625029B2 JPH0625029B2 (en) 1994-04-06

Family

ID=12368647

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1032790A Expired - Lifetime JPH0625029B2 (en) 1989-02-14 1989-02-14 Binder for furnace repair material

Country Status (1)

Country Link
JP (1) JPH0625029B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07232969A (en) * 1994-02-22 1995-09-05 Nichiden Carbon Kk Low temperature-workable high strength carbon stamping material and its production
WO1998050321A1 (en) * 1997-05-07 1998-11-12 Shinagawa Refractories Co., Ltd. Seizure repairing material
CN110922215A (en) * 2019-12-11 2020-03-27 江西腾泽模具制造有限公司 Repairing material and repairing method thereof applied to high-voltage porcelain body

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5328607A (en) * 1976-08-30 1978-03-17 Kurosaki Refractories Co Indefinite form refractory articles for thermal mending
JPS5641869A (en) * 1979-09-07 1981-04-18 Nippon Steel Corp Formless furnace wall material binder for blast furnace
JPS60246256A (en) * 1984-05-17 1985-12-05 新日鐵化学株式会社 Binder composition for refractory brick

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5328607A (en) * 1976-08-30 1978-03-17 Kurosaki Refractories Co Indefinite form refractory articles for thermal mending
JPS5641869A (en) * 1979-09-07 1981-04-18 Nippon Steel Corp Formless furnace wall material binder for blast furnace
JPS60246256A (en) * 1984-05-17 1985-12-05 新日鐵化学株式会社 Binder composition for refractory brick

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07232969A (en) * 1994-02-22 1995-09-05 Nichiden Carbon Kk Low temperature-workable high strength carbon stamping material and its production
WO1998050321A1 (en) * 1997-05-07 1998-11-12 Shinagawa Refractories Co., Ltd. Seizure repairing material
EP0936203A1 (en) * 1997-05-07 1999-08-18 Shinagawa Refractories Co., Ltd. Seizure repairing material
AU730320B2 (en) * 1997-05-07 2001-03-01 Shinagawa Refractories Co., Ltd. Hot repair mixes
EP0936203A4 (en) * 1997-05-07 2003-06-04 Shinagawa Refractories Co Seizure repairing material
CN110922215A (en) * 2019-12-11 2020-03-27 江西腾泽模具制造有限公司 Repairing material and repairing method thereof applied to high-voltage porcelain body

Also Published As

Publication number Publication date
JPH0625029B2 (en) 1994-04-06

Similar Documents

Publication Publication Date Title
AU651777B2 (en) Carbonaceous binder
US4387173A (en) Use of resorcinal polymer blend as a binder for carbon-containing refractory brick and shape
JPH02212356A (en) Furnace repairing binder
US3689299A (en) Process for preparing pitch bound aggregate
JP3053225B2 (en) Magnesia carbon refractory brick
KR100368878B1 (en) Refractory material
JPH0469116B2 (en)
JPH02212355A (en) Hot furnace reparing binder
KR100613259B1 (en) A zirconia-carbon refractory composition
KR100387596B1 (en) Spray refractory for repair of refining furnace
JP3023022B2 (en) Irregular refractories for hot repair
JPH11349384A (en) Production of closing material and binder composition for closing material
JPH0437453A (en) Nozzle for casting wide and thin slab
JPH06263523A (en) Production of carbon-containing unburned brick
JPH0657620B2 (en) Refractory composition
JPH06321618A (en) Production of sliding nozzle plate
JPS60208406A (en) Binder of mud material for blast furnace
JPS60246256A (en) Binder composition for refractory brick
JP2000063183A (en) Closing material
JPH1017357A (en) Production of carbon-containing refractory
JP3471486B2 (en) Coating composition
JPS61122171A (en) Refractory composition
JPH0437452A (en) Nozzle for casting wide and thin slab
JPH11349383A (en) Closing material for molten pig iron tapping port
JPS62171966A (en) Thermally baking repairment material