JP2009298633A - Casting monolithic refractory - Google Patents
Casting monolithic refractory Download PDFInfo
- Publication number
- JP2009298633A JP2009298633A JP2008153863A JP2008153863A JP2009298633A JP 2009298633 A JP2009298633 A JP 2009298633A JP 2008153863 A JP2008153863 A JP 2008153863A JP 2008153863 A JP2008153863 A JP 2008153863A JP 2009298633 A JP2009298633 A JP 2009298633A
- Authority
- JP
- Japan
- Prior art keywords
- refractory
- binder
- weight
- fluidity
- alkali metal
- 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
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Ceramic Products (AREA)
Abstract
Description
本発明は、流し込み不定形耐火物に関する。 The present invention relates to a cast amorphous refractory.
炉本体、樋、取鍋などにおいては、各種の高温溶融物と接触したり高温雰囲気に曝されるため、流し込み不定形耐火物により内張りすることが従来から行われている。不定形耐火物としては、アルミナセメントを使用するのが一般的であるが、混練後に短時間で硬化してしまうため、施工現場にミキサー等を持ち込んで、施工者が硬化しないように少量ずつ加水混練を行う必要があり、作業面やコスト面での問題がある。 In the furnace main body, the ladle, the ladle, etc., since it is in contact with various high-temperature melts or exposed to a high-temperature atmosphere, it has been conventionally performed to line with a cast amorphous refractory. Alumina cement is generally used as an amorphous refractory. However, since it hardens in a short time after kneading, bring a mixer etc. to the construction site and add water little by little to prevent the installer from hardening. It is necessary to perform kneading, and there are problems in terms of work and cost.
このため、特許文献１には、粉末珪酸塩とアルカリ金属リン酸塩とを所定の混合比で混合し、これを耐火性骨材に所定の割合で添加した後、水を加えて混練してなる熱硬化性流し込み耐火物が開示されている。この流し込み耐火物は、常温では硬化の進行が遅いため、予め工場で混練してから現場に運んで施工することができる。
ところが、特許文献１に開示された熱硬化性流し込み耐火物は、長期間の保管やトラック等での輸送中に、材料中の骨材が沈んで水が浮くという分離現象を生じることがあり、施工性の面で更に改良の余地があった。 However, the thermosetting cast refractory disclosed in Patent Document 1 may cause a separation phenomenon that the aggregate in the material sinks and the water floats during long-term storage or transportation by truck, There was room for further improvement in terms of workability.
そこで、本発明は、現場での施工性に優れる流し込み不定形耐火物の提供を目的とする。 Then, an object of this invention is to provide the casting unshaped refractory excellent in the construction property on the spot.
本発明者らは、鋭意研究の結果、珪酸ナトリウム及びアルカリ金属リン酸塩を含む結合剤を、耐火性骨材に添加した流し込み不定形耐火物において、結合剤として酸化亜鉛を更に加えることにより、加水混練の後に一旦硬化しても、振動を与えることで再び流動性を発現することを見出し、本願発明を完成するに至った。 As a result of diligent research, the present inventors have further added zinc oxide as a binder in a cast amorphous refractory in which a binder containing sodium silicate and an alkali metal phosphate is added to a refractory aggregate. Even after curing once after the hydro-kneading, it was found that the fluidity was developed again by applying vibration, and the present invention was completed.
すなわち、本発明の前記目的は、耐火性骨材１００重量部に対する結合剤の添加割合が０．１〜１０重量部であり、前記結合剤は、珪酸ナトリウム及びアルカリ金属リン酸塩を重量比で６：４〜２：８の割合で混合した混合物１００重量部に対し、酸化亜鉛を０．０５〜３０重量部添加したことを特徴とする流し込み不定形耐火物により達成される。 That is, the object of the present invention is that the binder is added in an amount of 0.1 to 10 parts by weight with respect to 100 parts by weight of the refractory aggregate, and the binder includes sodium silicate and alkali metal phosphate in a weight ratio. This is achieved by a cast amorphous refractory characterized by adding 0.05 to 30 parts by weight of zinc oxide to 100 parts by weight of the mixture mixed at a ratio of 6: 4 to 2: 8.
本発明によれば、現場での施工性に優れる流し込み不定形耐火物を提供することができる。 According to the present invention, it is possible to provide a cast amorphous refractory having excellent workability on site.
本発明の流し込み不定形耐火物は、耐火性骨材に結合材を添加して生成される。 The cast amorphous refractory of the present invention is produced by adding a binder to a refractory aggregate.
（ａ）耐火性骨材
本発明に使用する耐火性骨材としては、(1) 電融アルミナ、焼結アルミナ、化焼アルミナなどの高アルミナ原料(2) 焼成ボーキサイト、ムライト、シリマナイト、カイヤナイト、アンダルサイトなどのアルミナ−シリカ原料(3) ロー石、シャモット、粘土質鉱物などのシリカ−アルミナ原料(4) 珪砂、珪石、溶融石英などの珪酸質原料(5) クロム鉄鉱、焼結スピネル、電融スピネルなどのスピネル原料(6) マグネシアクリンカー、フォルステライト、ドロマイトクリンカー、カルシアなどの塩基性原料(7) ジルコン質原料(8) ジルコニア質原料(9) 炭化珪素、炭化ジルコニウム、炭化アルミニウム、炭化硼素などの炭化物質原料(10)窒化珪素、窒化ジルコニウム、窒化硼素、窒化アルミニウムなどの窒化物質原料(11)コークス、天然黒鉛、人造黒鉛、無煙炭、カーボンブラック、カーボン煉瓦屑、電極屑などの炭素質原料(12)珪酸ソーダ塊、珪素、酸化クロムなどの耐火性粉末を使用可能である。また、耐火性骨材として、これら各群から1種または2種以上選択して利用することもでき、或いは、異なる群から1種又は2種以上選択して利用することもできる。耐火性骨材は、約５ｍｍ以下に粒度調整されていることが好ましい。
(A) Refractory Aggregate The refractory aggregate used in the present invention includes (1) high alumina raw materials such as fused alumina, sintered alumina, and calcined alumina (2) calcined bauxite, mullite, sillimanite, kyanite Alumina-silica raw materials such as andalusite (3) Silica-alumina raw materials such as rholite, chamotte and clay minerals (4) Silicic raw materials such as silica sand, silica and fused silica (5) Chromium iron ore, sintered spinel, Spinel raw materials such as fused spinel (6) Basic raw materials such as magnesia clinker, forsterite, dolomite clinker, calcia (7) Zircon material (8) Zirconia material (9) Silicon carbide, zirconium carbide, aluminum carbide, carbonized Boron and other carbide materials (10) Silicon nitride, zirconium nitride, boron nitride, aluminum nitride and other nitride materials (11) Coke, natural graphite, Concrete graphite, anthracite, carbon black, carbon brick scrap, carbonaceous feedstock (12) sodium silicate mass, such as an electrode scrap, silicon can be used for refractory powder such as chromium oxide. Further, as the refractory aggregate, one or more types can be selected and used from each of these groups, or one or more types can be selected and used from different groups. The refractory aggregate is preferably adjusted in particle size to about 5 mm or less.
（ｂ）結合剤
結合剤としては、難溶性の粉末珪酸ナトリウムと、アルカリ金属リン酸塩とを含む混合物に、酸化亜鉛を添加したものを使用する。
(B) Binder As the binder, a mixture obtained by adding zinc oxide to a mixture containing hardly soluble powdered sodium silicate and alkali metal phosphate is used.
粉末珪酸ナトリウムは、ＳｉＯ２を５０〜８０％、Ｎａ２Ｏを１５〜４０％含有するものを使用することが好ましい。ＳｉＯ２とＮａ２Ｏのモル比は、特に限定されるものではないが、溶解度が小さすぎると硬化がし難くなる一方、溶解度が大きすぎると早く硬化して施工時の流動性が確保しにくいことから、２０℃における溶解度が０．１〜５％程度となるように、適宜調整することが好ましい。 It is preferable to use a powdered sodium silicate containing 50 to 80% SiO 2 and 15 to 40% Na 2 O. The molar ratio of SiO 2 and Na 2 O is not particularly limited. However, if the solubility is too small, it is difficult to cure, whereas if the solubility is too large, the composition is cured quickly and it is difficult to ensure the fluidity during construction. Therefore, it is preferable to adjust appropriately so that the solubility at 20 ° C. is about 0.1 to 5%.
また、アルカリ金属リン酸塩は、リン酸ナトリウム、トリポリリン酸ナトリウム、テトラポリリン酸ナトリウム、リン酸カリウム、ポリリン酸カリウムなどを例示することができ、特に、トリポリリン酸二水素アルミニウムの水和物（ＡｌＨ２Ｐ３Ｏ１０・２Ｈ２Ｏ）を好ましく使用することができる。 Examples of the alkali metal phosphate include sodium phosphate, sodium tripolyphosphate, sodium tetrapolyphosphate, potassium phosphate, and potassium polyphosphate. In particular, hydrate of aluminum dihydrogen tripolyphosphate (AlH 2 P 3 O 10 · 2H 2 O) can be preferably used.
酸化亜鉛（ＺｎＯ）は、微粉末状であることが好ましく、珪酸ナトリウム及びアルカリ金属リン酸塩の混合物に、均一に分散される。また、使用する酸化亜鉛の純度は、９０％以上であることが好ましい。 Zinc oxide (ZnO) is preferably in the form of fine powder, and is uniformly dispersed in a mixture of sodium silicate and alkali metal phosphate. Moreover, it is preferable that the purity of the zinc oxide to be used is 90% or more.
（ｃ）混合割合
ｉ）結合剤（珪酸ナトリウム、アルカリ金属リン酸塩、酸化亜鉛）
結合剤に含まれる珪酸ナトリウム及びアルカリ金属リン酸塩の混合比は、アルカリ金属リン酸塩の割合が大きすぎると、施工後に硬化し難く十分な強度が得られない一方、珪酸ナトリウムの割合が大きすぎると、流動性が悪化すると共に硬化が早く生じて施工が困難になる傾向になる。したがって、珪酸ナトリウム及びアルカリ金属リン酸塩を、重量比で６：４〜２：８の割合で混合することが好ましく、４：６〜２．５：７．５の割合で混合することがより好ましい。また、スラリーを構成する耐火性骨材等の粉体の粒度分布、粉体嵩等のばらつきは、加水混錬後のスラリーの性質にもばらつきを与え、施工性に悪影響を生ずる場合がある。このような原料粉体のばらつきにも影響されにくいという観点から、実用的に最も好ましい珪酸ナトリウム及びアルカリ金属リン酸塩の重量比は、１：約２．８である。
(C) Mixing ratio i) Binder (sodium silicate, alkali metal phosphate, zinc oxide)
As for the mixing ratio of sodium silicate and alkali metal phosphate contained in the binder, if the proportion of alkali metal phosphate is too large, it is difficult to cure after construction and sufficient strength cannot be obtained, while the proportion of sodium silicate is large. When too much, fluidity | liquidity will deteriorate, and it will become hard to produce early, and it will become the tendency for construction to become difficult. Therefore, it is preferable to mix sodium silicate and alkali metal phosphate in a weight ratio of 6: 4 to 2: 8, and more preferably in a ratio of 4: 6 to 2.5: 7.5. preferable. Moreover, the dispersion | distribution of the particle size distribution, powder bulk, etc. of powders, such as a refractory aggregate which comprises a slurry, will also have dispersion | variation also in the property of the slurry after hydromixing, and may have a bad influence on workability | operativity. From the viewpoint of being hardly affected by such variations in raw material powder, the most practically preferred weight ratio of sodium silicate and alkali metal phosphate is 1: about 2.8.
また、上記の混合物に添加する酸化亜鉛は、多すぎると、振動を与えても再び流動性を発現し難くなる一方、少なすぎると、生成される流し込み不定形耐火物に従来と同様の分離現象を生じるおそれがある。したがって、上記混合物１００重量部に対し、酸化亜鉛を０．０５〜３０重量部添加することが好ましく、１〜２５重量部添加することがより好ましい。 In addition, if too much zinc oxide is added to the above mixture, it will be difficult to develop fluidity again even if vibration is applied, while if too little, the generated separation-type refractory material will have the same separation phenomenon as before. May occur. Therefore, it is preferable to add 0.05-30 weight part of zinc oxide with respect to 100 weight part of the said mixture, and it is more preferable to add 1-25 weight part.
ii）耐火性骨材と結合剤
耐火性骨材に対する結合剤の割合は、小さすぎると、施工後に十分な強度が得られない一方、大きすぎると、施工後に十分な耐食性が得られない。したがって、耐火性骨材１００重量部に対し、結合剤の添加割合を０．１〜１０重量部とすることが好ましい。
ii) Refractory aggregate and binder If the ratio of the binder to the refractory aggregate is too small, sufficient strength cannot be obtained after construction, while if too large, sufficient corrosion resistance cannot be obtained after construction. Therefore, it is preferable that the addition ratio of the binder is 0.1 to 10 parts by weight with respect to 100 parts by weight of the refractory aggregate.
iii）その他
本発明の流し込み不定形耐火物は、本発明の効果を阻害しない範囲で、従来の流し込み不定形耐火物に使用されるものを添加してもよい。例えば、アルカリ金属カルボン酸塩、ポリカルボン酸系重合体、アルキルスルホン酸塩などの分散剤を使用することができる。
iii) Others The cast amorphous refractories of the present invention may be added to those used for conventional cast amorphous refractories as long as the effects of the present invention are not impaired. For example, dispersants such as alkali metal carboxylates, polycarboxylic acid polymers, and alkyl sulfonates can be used.
（ｄ）使用方法
上記の流し込み不定形耐火物粉体は、予め工場などで適量の水を加えて混練することにより、１〜３日程度で自然硬化する。これにより、保存中や運搬中における水の分離現象を防止することができる。流し込み不定形耐火物に対する水の添加量は、例えば、流し込み不定形耐火物粉体１００重量部に対して、５〜７重量部とすることができる。
(D) Method of use The above-mentioned cast amorphous refractory powder is naturally cured in about 1 to 3 days by adding an appropriate amount of water and kneading in advance at a factory or the like. Thereby, the separation phenomenon of water during storage or transportation can be prevented. The amount of water added to the cast amorphous refractory can be, for example, 5 to 7 parts by weight with respect to 100 parts by weight of the cast amorphous refractory powder.
ついで、加水混練後に硬化した流し込み不定形耐火物を、現場まで搬送し、施工直前にバイブレータ等で振動を与える。本発明の流し込み不定形耐火物は、結合剤中に酸化亜鉛が適量添加されているため、振動の付与によって、流動性を容易に発現させることができ、流し込み施工を行うことができる。 Next, the cast amorphous refractory cured after the hydro-kneading is transported to the site, and vibration is applied with a vibrator or the like immediately before construction. In the cast amorphous refractory according to the present invention, since an appropriate amount of zinc oxide is added to the binder, fluidity can be easily expressed by applying vibration, and casting can be performed.
流し込み施工の終了後、流し込み不定形耐火物の表面をバーナー等で加熱する。加熱条件は、例えば８０〜１００℃で３〜５時間程度である。このような強制加熱によって、難溶性の粉末珪酸ナトリウムは、溶解度が高まり、アルカリ金属リン酸塩と反応する。この結果、施工された流し込み不定形耐火物は、耐火材としての機能を十分発揮できる程度に硬化する。 After the pouring work is completed, the surface of the cast amorphous refractory is heated with a burner or the like. The heating conditions are, for example, about 80 to 100 ° C. and about 3 to 5 hours. By such forced heating, the poorly soluble powdered sodium silicate has increased solubility and reacts with the alkali metal phosphate. As a result, the poured cast refractory thus constructed is cured to such an extent that it can sufficiently function as a refractory material.
このように、本発明の流し込み不定形耐火物によれば、保存・運搬時には擬似的な硬化状態により水分離を抑制することができると共に、施工時には振動の付与により流動性を容易に発現させることができるので、施工性を良好にすることができる。 Thus, according to the cast amorphous refractory of the present invention, water separation can be suppressed by a pseudo-cured state during storage and transportation, and fluidity can be easily expressed by applying vibration during construction. Therefore, workability can be improved.
本発明の流し込み不定形耐火物は、各種金属、ガラス、セメント、スラグ、産業廃棄物等を溶解または処理するための高炉、キュポラ、アルミ、銅等およびその他の非鉄金属の溶解・保持炉、各種均熱炉、加熱炉、溝型または坩堝型等の電気誘導加熱炉、各種焼却炉、セメントキルン、ガラス溶解炉等の炉本体を初め、それらに付随した樋、取鍋、蓋、煙道、ダクト、ボイラー等の高温で用いる器具・装置において、各種の高温溶融物に接したり、高温雰囲気にさらされる部位を覆うために流し込み硬化させる目的で、好適に使用することができる。 The cast amorphous refractories of the present invention are blast furnaces for melting or treating various metals, glass, cement, slag, industrial waste, etc., melting / holding furnaces for various non-ferrous metals such as cupola, aluminum, copper, etc. Soaking furnace, heating furnace, grooved or crucible type electric induction heating furnace, various incinerators, cement kiln, glass melting furnace, etc. It can be suitably used for the purpose of pouring and curing in a device such as a duct or a boiler, which is used at a high temperature, so as to come into contact with various high-temperature melts or to cover a portion exposed to a high-temperature atmosphere.
以下に本発明の実施例及び比較例を挙げて、本発明を更に詳細に説明する。但し、本発明が以下の実施例に限定されるものではない。 Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples of the present invention. However, the present invention is not limited to the following examples.
流し込み不定形耐火物として、珪酸ナトリウム及びアルカリ金属リン酸塩の重量混合比をパラメータとして、各材料を表１に示す重量割合で混合したものを使用し、加水混練して混練直後のフロー値を測定すると共に、この混練物を長期保存し、７日後、１４日後、２１日後、２８日後のフロー値をそれぞれ測定した。フロー値の測定は、ＪＩＳ Ｒ２５２１（アルミナセメントのフロー試験）に準じて行い、流動性を発現させるため、測定直前にバイブレータによる振動を与えた。 As a cast amorphous refractory, using a weight mixing ratio of sodium silicate and alkali metal phosphate as a parameter, a mixture of each material in the weight ratio shown in Table 1, using water kneading, the flow value immediately after kneading While measuring, this kneaded material was stored for a long time, and the flow values after 7 days, 14 days, 21 days, and 28 days were measured. The flow value was measured according to JIS R2521 (alumina cement flow test), and vibration was applied by a vibrator immediately before the measurement in order to develop fluidity.
表１に示すように、比較例１及び実施例１〜４については、アルカリ金属リン酸塩に対して珪酸ナトリウムの割合が大きくなるにつれ、フロー値（すなわち流動性）が徐々に低下しているが、実施例４においても、２８日後のフロー値は１２０以上を確保しており、長期保存後も振動の付与により良好な流動性を発現可能であった。一方、比較例２については、珪酸ナトリウムの割合が大きくなり過ぎて、保存期間が長期化すると流動性が急激に低下した、また、比較例３については、珪酸ナトリウムの割合が更に大きくなり、１４日後には振動を与えても流動性を発現することはなく、施工が不可能な状態になった。 As shown in Table 1, in Comparative Example 1 and Examples 1 to 4, the flow value (ie, fluidity) gradually decreases as the proportion of sodium silicate with respect to the alkali metal phosphate increases. However, in Example 4, the flow value after 28 days was 120 or more, and good fluidity could be expressed by applying vibration even after long-term storage. On the other hand, for Comparative Example 2, the proportion of sodium silicate became too large, and the fluidity decreased sharply when the storage period was prolonged, and for Comparative Example 3, the proportion of sodium silicate was further increased. After the day, even if vibration was applied, fluidity did not appear and construction was impossible.
混練物の保存中は、耐火物原料に対して水が分離していないかを定期的に目視確認したが、実施例１〜４及び比較例１〜３のいずれも、分離現象は生じなかった。 During storage of the kneaded product, whether or not water was separated from the refractory raw material was regularly checked visually, but no separation phenomenon occurred in any of Examples 1-4 and Comparative Examples 1-3. .
混練物の保存開始から２８日後に、バイブレータにより混練物に振動を与えて流動性を発現させてから、４０×４０×１６０（ｍｍ）の型枠に流し込み、６０℃で３時間養生した後に脱枠して、施工性（流動性及び保形性）を評価した。 After 28 days from the start of storage of the kneaded product, the kneaded product was vibrated with a vibrator to develop fluidity, poured into a 40 × 40 × 160 (mm) mold, cured at 60 ° C. for 3 hours, and then removed. Frameability was evaluated for workability (fluidity and shape retention).
表１に示すように、実施例２〜３については、施工中の十分な流動性が確保されていると共に、施工後は硬化して十分な保形性が維持され、施工性は良好であった。また、実施例１は保形性が若干低下し、実施例４は流動性が若干低下しているものの、いずれも施工作業は可能であった。これに対し、比較例１は、施工後の十分な硬化強度が得られず、脱枠が困難であった。また、比較例２は、施工中の流動性が十分でなく、型枠への充填が困難であった。比較例３は、上記のとおり保存中に硬化してしまい、施工作業は不可能であった。 As shown in Table 1, in Examples 2 to 3, sufficient fluidity during construction was secured, and after construction, sufficient shape retention was maintained, and the workability was good. It was. Moreover, although the shape retention property of Example 1 was slightly lowered and the fluidity of Example 4 was slightly lowered, construction work was possible in all cases. On the other hand, in Comparative Example 1, sufficient curing strength after construction was not obtained, and it was difficult to remove the frame. In Comparative Example 2, the fluidity during the construction was not sufficient, and it was difficult to fill the mold. Comparative Example 3 was cured during storage as described above, and construction work was impossible.
次に、珪酸ナトリウム及びアルカリ金属リン酸塩の混合物に対する酸化亜鉛の重量混合比をパラメータとして、表１の場合と同様に、フロー値の測定、分離現象の目視、及び施工性の評価を行った。
Next, using the weight mixing ratio of zinc oxide to the mixture of sodium silicate and alkali metal phosphate as a parameter, the flow value was measured, the separation phenomenon was visually observed, and the workability was evaluated in the same manner as in Table 1. .
表２に示すように、比較例４及び実施例５〜９については、酸化亜鉛の割合が大きくなるにつれ、フロー値（すなわち流動性）が徐々に低下しているが、実施例９においても、２８日後のフロー値は１２０以上を確保しており、長期保存後も振動の付与により良好な流動性を発現可能であった。一方、比較例５については、酸化亜鉛の割合が大きくなり過ぎたために、２１日後には振動を与えても流動性を発現することはなく、施工が不可能な状態になった。 As shown in Table 2, for Comparative Example 4 and Examples 5 to 9, the flow value (ie, fluidity) gradually decreased as the proportion of zinc oxide increased, but also in Example 9, The flow value after 28 days secured 120 or more, and even after long-term storage, good fluidity could be expressed by applying vibration. On the other hand, in Comparative Example 5, since the ratio of zinc oxide became too large, fluidity was not expressed even after vibration was applied after 21 days, and the construction became impossible.
混練物の保存中は、実施例６〜９及び比較例５については、分離現象は生じなかった。実施例５は、若干の水浮きが生じるものの、施工作業は可能であった。一方、比較例４は、水の分離現象が生じやすく、十分撹拌しないと施工作業が行えない状態であった。 During the storage of the kneaded material, no separation phenomenon occurred in Examples 6 to 9 and Comparative Example 5. In Example 5, although some water floating occurred, construction work was possible. On the other hand, in Comparative Example 4, the water separation phenomenon was likely to occur, and the construction work could not be performed without sufficient stirring.
施工性については、実施例５〜８は、施工中の十分な流動性が確保されていると共に、施工後は硬化して十分な保形性が維持され、施工性は良好であった。実施例９は、流動性が若干低下しているものの、施工作業は可能であった。これに対し、比較例４は、上記のとおり水の分離現象が生じるために、十分な撹拌を行えば施工性は確保されるが、ミキサーなどを用いた煩雑な撹拌作業が必要であった。また、比較例５は、上記のとおり保存中に硬化してしまい、施工作業は不可能であった。 Regarding workability, Examples 5 to 8 ensured sufficient fluidity during construction, cured after construction, maintained sufficient shape retention, and had good workability. In Example 9, although the fluidity was slightly lowered, construction work was possible. On the other hand, in Comparative Example 4, since the water separation phenomenon occurs as described above, workability is ensured if sufficient stirring is performed, but complicated stirring work using a mixer or the like is necessary. Moreover, the comparative example 5 hardened | cured during storage as mentioned above, and construction work was impossible.
Claims (1)
前記結合剤は、珪酸ナトリウム及びアルカリ金属リン酸塩を重量比で６：４〜２：８の割合で混合した混合物１００重量部に対し、酸化亜鉛を０．０５〜３０重量部添加したことを特徴とする流し込み不定形耐火物。
The addition ratio of the binder to 100 parts by weight of the refractory aggregate is 0.1 to 10 parts by weight,
In the binder, 0.05 to 30 parts by weight of zinc oxide is added to 100 parts by weight of a mixture in which sodium silicate and alkali metal phosphate are mixed at a weight ratio of 6: 4 to 2: 8. A pour-shaped amorphous refractory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008153863A JP5106257B2 (en) | 2008-06-12 | 2008-06-12 | Casting irregular refractory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008153863A JP5106257B2 (en) | 2008-06-12 | 2008-06-12 | Casting irregular refractory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2009298633A true JP2009298633A (en) | 2009-12-24 |
| JP5106257B2 JP5106257B2 (en) | 2012-12-26 |
Family
ID=41545938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008153863A Active JP5106257B2 (en) | 2008-06-12 | 2008-06-12 | Casting irregular refractory |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5106257B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011213521A (en) * | 2010-03-31 | 2011-10-27 | Kurosaki Harima Corp | Castable refractory and method for manufacturing the same |
| CN112010658A (en) * | 2019-05-28 | 2020-12-01 | 宝山钢铁股份有限公司 | Slag adhesion preventing material for refining ladle opening and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5026810A (en) * | 1973-07-09 | 1975-03-19 | ||
| JPS53111313A (en) * | 1977-01-17 | 1978-09-28 | Aluminum Co Of America | Hydraulic refractory material mixture |
| JPS53125416A (en) * | 1977-04-09 | 1978-11-01 | Nippon Crucible Co | Refaractories initially fluid to be cast |
| JPS5788084A (en) * | 1980-11-20 | 1982-06-01 | Nippon Steel Corp | Refractories for flow casting |
| JPH06227857A (en) * | 1993-02-02 | 1994-08-16 | Kyushu Refract Co Ltd | Magnesia refractory |
| JPH06263527A (en) * | 1993-03-12 | 1994-09-20 | Kyushu Refract Co Ltd | Alumina refractory |
| JPH10130065A (en) * | 1996-10-25 | 1998-05-19 | Nippon Rutsubo Kk | Heat hardenable castable refractory |
-
2008
- 2008-06-12 JP JP2008153863A patent/JP5106257B2/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5026810A (en) * | 1973-07-09 | 1975-03-19 | ||
| JPS53111313A (en) * | 1977-01-17 | 1978-09-28 | Aluminum Co Of America | Hydraulic refractory material mixture |
| JPS53125416A (en) * | 1977-04-09 | 1978-11-01 | Nippon Crucible Co | Refaractories initially fluid to be cast |
| JPS5788084A (en) * | 1980-11-20 | 1982-06-01 | Nippon Steel Corp | Refractories for flow casting |
| JPH06227857A (en) * | 1993-02-02 | 1994-08-16 | Kyushu Refract Co Ltd | Magnesia refractory |
| JPH06263527A (en) * | 1993-03-12 | 1994-09-20 | Kyushu Refract Co Ltd | Alumina refractory |
| JPH10130065A (en) * | 1996-10-25 | 1998-05-19 | Nippon Rutsubo Kk | Heat hardenable castable refractory |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011213521A (en) * | 2010-03-31 | 2011-10-27 | Kurosaki Harima Corp | Castable refractory and method for manufacturing the same |
| CN112010658A (en) * | 2019-05-28 | 2020-12-01 | 宝山钢铁股份有限公司 | Slag adhesion preventing material for refining ladle opening and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5106257B2 (en) | 2012-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6179534B2 (en) | Unshaped refractories for blast furnace glazing | |
| JP4796170B2 (en) | Chromium castable refractories and precast blocks using the same | |
| JP6427456B2 (en) | Unshaped refractory composition and unshaped refractory | |
| JP5106257B2 (en) | Casting irregular refractory | |
| JP2007039330A (en) | Bond castable composition with minimum amount of cement base having nonslumping property, and application method | |
| JP4598672B2 (en) | Zirconia amorphous refractory | |
| JP2008297163A (en) | Monolithic refractory and method for manufacturing refractory | |
| JP7302543B2 (en) | monolithic refractories | |
| JP2004203702A (en) | Monolithic refractory containing serpentine or talc, applied body of the same, and furnace lined with the same | |
| JP2000203953A (en) | Castable refractory for trough of blast furnace | |
| JP2002274959A (en) | Refractory material for aluminum and aluminum alloy | |
| JP5663122B2 (en) | Castable refractories for non-ferrous metal smelting containers and precast blocks using the same | |
| JP6296635B1 (en) | Casting irregular refractory | |
| JPH08157267A (en) | Castable refractory for flow-in execution | |
| JPH05178675A (en) | Castable refractory | |
| Msibi et al. | Effect of recycled bauxite grog addition on andalusite-containing refractory castables for tundish applications | |
| JP2607963B2 (en) | Pouring refractories | |
| JP6599574B1 (en) | Curing accelerator, cement composition, and amorphous refractory | |
| JP2000335980A (en) | Graphite-containing monolithic refractory | |
| JP2004059390A (en) | Castable refractory for blast furnace trough | |
| JP4404515B2 (en) | Unshaped refractories for waste treatment furnaces | |
| JP2000264743A (en) | Easily sinterable basic irregular refractory material and kiln using the same | |
| JP2023165768A (en) | Castable refractories and molten steel ladle using the same | |
| JP3615578B2 (en) | Hydraulic amorphous refractory composition | |
| JPH0653617B2 (en) | Thermosetting casting material for gutter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20110401 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20120130 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20120228 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20120319 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20120911 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20121002 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 5106257 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20151012 Year of fee payment: 3 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |