JPS5843354B2 - Manufacturing method of fireproof bricks with built-in reinforcing bars - Google Patents
Manufacturing method of fireproof bricks with built-in reinforcing barsInfo
- Publication number
- JPS5843354B2 JPS5843354B2 JP18696780A JP18696780A JPS5843354B2 JP S5843354 B2 JPS5843354 B2 JP S5843354B2 JP 18696780 A JP18696780 A JP 18696780A JP 18696780 A JP18696780 A JP 18696780A JP S5843354 B2 JPS5843354 B2 JP S5843354B2
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing bars
- bricks
- reinforcing
- built
- manufacturing
- 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.)
- Expired
Links
- 230000003014 reinforcing effect Effects 0.000 title claims description 36
- 239000011449 brick Substances 0.000 title claims description 34
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 239000002994 raw material Substances 0.000 claims description 7
- 239000010425 asbestos Substances 0.000 claims description 6
- 238000010304 firing Methods 0.000 claims description 6
- 229910052895 riebeckite Inorganic materials 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 238000000465 moulding Methods 0.000 claims 1
- 239000004927 clay Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000123 paper Substances 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- BYFGZMCJNACEKR-UHFFFAOYSA-N aluminium(i) oxide Chemical compound [Al]O[Al] BYFGZMCJNACEKR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000004901 spalling Methods 0.000 description 2
- -1 3-based Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
【発明の詳細な説明】
本発明はロータリーキルンのハブレンガとして用いられ
る耐火レンガ等において、その耐摩耗性、耐衝撃性を高
めた耐火レンガの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing refractory bricks with improved wear resistance and impact resistance, such as refractory bricks used as hub bricks for rotary kilns.
一般にロータリーキルン１は第３図に示すようにキルン
１の内側に耐火レンガ２が内張すされており、更にキル
ン１の内側に向って突出するハブレンガ突出部３がキル
ン内周に沿って所定間隔ごとに設けられている。In general, a rotary kiln 1 has a refractory brick 2 lined inside the kiln 1 as shown in FIG. are provided for each.
上記ロータリーキルンに用いられるハブレンガ突出部３
は焼成りンカによる減耗、熱衝撃、スポーリング等極め
導苛酷な条件下にある。Hub brick protrusion 3 used in the above rotary kiln
is subjected to extremely harsh conditions such as wear due to sintered linker, thermal shock, and spalling.
従って突出部を有する全てのハブレンガは、亀裂、剥落
、又は折損が容易に発生する状態にある。All hub bricks with protrusions are therefore susceptible to cracking, spalling, or breaking.
従来の突出部を有するハブレンガは単に内張り用耐火レ
ンガ２を部分的に突出させた状態のものであるため酸化
又は剥離による減耗がはなはだしく、経済的においても
決して満足すべきものではない。Conventional hub bricks with protrusions simply have lining refractory bricks 2 partially protruding, so they suffer from significant wear due to oxidation or peeling, and are not economically satisfactory.
即ち、ハブレンガを使用する目的はロータリーキルンの
回転に伴ない突出部による原料の転勤によりタリンカー
の均一焼成をはかると共に熱効率を向上させるためであ
る。That is, the purpose of using the hub bricks is to ensure uniform firing of the tarinker and to improve thermal efficiency by transferring raw materials through the protrusions as the rotary kiln rotates.
従ってハブレンガとしての効果を充分に発揮させるため
には突出部の原形を保持することが必要であり、突出部
の剥離、折損等による突出部の欠落が生じないようにす
ることが必要である。Therefore, in order to fully exhibit the effect as a hub brick, it is necessary to maintain the original shape of the protrusion, and it is necessary to prevent the protrusion from being missing due to peeling or breakage of the protrusion.
本発明は補強用鉄筋を一体焼成することにより耐火レン
ガの強度を高めたものであり、その構成は、レンガの原
料内部に補強用鉄筋を埋込み、該鉄筋の端部および軸周
りに該鉄筋の溶融膨張に見合う量の紙類やアスベストを
詰込んで成型した後に一体戦成することを特徴とする。The present invention increases the strength of firebricks by integrally firing reinforcing bars.The structure is such that the reinforcing bars are embedded inside the raw material of the brick, and the reinforcing bars are placed around the ends and shafts of the reinforcing bars. It is characterized by being assembled into a single piece after being filled with paper or asbestos in an amount suitable for melting and expansion and then molded.
以下に本発明を実施例に基づいて詳細に説明する。The present invention will be explained in detail below based on examples.
耐火レンガの原料としては一般にＳｉＯ２系、Ａｌ２Ｏ
３系、ＭｇＯ系およびこれらの混合系など各種の組成の
ものが用いられている。The raw materials for refractory bricks are generally SiO2-based and Al2O.
Various compositions such as 3-based, MgO-based, and mixtures thereof are used.
上記原料粘土に補強用鉄筋を埋設して所定形状に成型す
る。Reinforcing reinforcing bars are embedded in the raw clay and molded into a predetermined shape.
尚、使用する配合土は使用温度に適応した耐スポール性
を有するものを用いる。The mixed soil to be used should have spall resistance suitable for the operating temperature.
突出部を有する異形レンガ１０は第１図ａに示す形状の
ものや、第１図すに示す形状のものなど各種形状のもの
があるが第１図ａに示す異形レンガについては第２図に
示すＶ形状の補強鉄筋１１を用いるとよい。The irregularly shaped bricks 10 having protrusions are available in various shapes such as those shown in FIG. 1a and those shown in FIG. It is preferable to use the V-shaped reinforcing reinforcing bars 11 shown.
又第１図すに示す異形レンガについてはレンガの長手方
向に沿った棒状ないし板状の鉄筋１２を用いれば足りる
。For the irregularly shaped bricks shown in Figure 1, it is sufficient to use rod-shaped or plate-shaped reinforcing bars 12 along the longitudinal direction of the bricks.
上記補強鉄筋１１．１２をレンガの原料粘土と一体に焼
成する場合、焼成温度１０００’Ｃ前後におよぶかなり
の高温であるため補強鉄筋が熱膨張し、更には一部溶融
状態になる。When the reinforcing reinforcing bars 11 and 12 are fired together with the brick raw material clay, the firing temperature is quite high, about 1000'C, so the reinforcing bars thermally expand and even become partially molten.
この場合原料粘土の熱膨張量に比べて鉄筋の熱膨張量が
大きいので単に原料粘土中に補強鉄筋を埋設しただけで
は焼成の際、亀裂を生じたり、更には亀裂から溶融した
鉄が漏出する不都合が生ずる。In this case, the amount of thermal expansion of the reinforcing bars is larger than that of the raw clay, so simply burying the reinforcing bars in the raw clay will cause cracks during firing, and furthermore, molten iron will leak out from the cracks. This will cause inconvenience.
そこで本発明は第２図に示すように補強鉄筋の端部にダ
ンボール紙１３を取付け、鉄筋の軸周りにはアスベスト
ヤーン１４を巻付け、その上に酸化防止のためコールタ
ールを被覆する。Therefore, in the present invention, as shown in FIG. 2, cardboard paper 13 is attached to the end of the reinforcing reinforcing bar, asbestos yarn 14 is wrapped around the shaft of the reinforcing bar, and coal tar is coated on top of the asbestos yarn 14 to prevent oxidation.
尚、ここでＶ型上２ＩＩＬ
ボール紙を取付け、アスベストヤーンを約１ｎ〜２ｒＩ
Ｌ７ＩＬφの厚さになるよう巻付ければよい。At this point, attach the V-shaped top 2IIL cardboard, and add about 1n to 2rI of asbestos yarn.
It is sufficient to wind it to a thickness of L7ILφ.
上記鉄筋の端部に取付けられたダンボール紙等はレンガ
の焼成時に焼失して鉄筋の膨張量に見合う空間が確保さ
れる。The cardboard paper and the like attached to the ends of the reinforcing bars are burned away when the bricks are fired, and a space corresponding to the amount of expansion of the reinforcing bars is secured.
次に上記補強鉄筋を埋設した原料配合土を成形するには
、始めに必要な配合量の約偽程配合士を型枠内に充填し
、この原料配合土の中央部に補強鉄筋を正確に埋設し、
残り約偽程の配合土を被せて加圧成型し、脱型する。Next, in order to form the raw material mix with the reinforcing reinforcing bars buried in it, first fill the mold with the required amount of compound mixer, and then place the reinforcing bars accurately in the center of the raw material mix. buried,
Cover with the remaining amount of mixed soil, press mold, and remove the mold.
以上説明した本発明の補強鉄筋を一体焼成した耐火レン
ガは従前の耐火レンガに比べて格段に優れた耐久性を有
する。The refractory brick of the present invention, which is integrally fired with reinforcing reinforcing bars, as described above has much superior durability compared to conventional refractory bricks.
即ち本発明に係る耐火レンガをロータリーキルンに用い
従来のハブレンガとの比較試験を行ったところ、従来の
ハブレンガは短期間に酸化による減耗損が犬であったが
、本発明によるハブレンガは折損は全くなく、剥落、キ
レン等は極めて微少であり、クリンカーの均−焼成及び
熱効率の向上にすぐれた効果が実証された。That is, when the refractory brick according to the present invention was used in a rotary kiln and a comparative test was conducted with a conventional hub brick, it was found that the conventional hub brick suffered a lot of wear and tear due to oxidation in a short period of time, but the hub brick of the present invention did not break at all. , peeling, cracking, etc. were extremely small, and the excellent effect on uniform firing of clinker and improvement of thermal efficiency was demonstrated.
以上のように本発明に係る耐火レンガは突出部に若干の
キレンが発生してもレンガと鉄筋の融着により剥落を防
止し骨材である鉄筋により折損が避けられるのでロータ
リーキルンの突出部に用いるのに好適であり、従来のも
のに比べて耐久性ば格段に優れるので経済的に有利であ
り、又ロータリーキルンの構造及ゾーンに適合した扇形
、アーチ型等すべての品質、形状の焼成耐火レンガに容
易に鉄筋を装着することが可能であるなど実用上優れた
利点を有する。As described above, the refractory bricks according to the present invention are used for the protruding parts of rotary kilns because even if some cracking occurs on the protruding parts, peeling is prevented by the fusion of the bricks and reinforcing bars, and breakage is avoided by the reinforcing bars which are aggregates. It is economically advantageous because it is much more durable than conventional bricks, and can be used for fired refractory bricks of all qualities and shapes, such as fan-shaped and arch-shaped, that are suitable for the structure and zone of the rotary kiln. It has excellent practical advantages such as being able to easily attach reinforcing bars.
第１図ａ，ｂは本発明に係る耐火レンガをロータリーキ
ルンに装着した状態を示す説明図、第２図は本発明に係
る耐火レンガに埋設する補強鉄筋の概略図、第３図はロ
ータリーキルンの部分縦断面図である。
図中、１・・・・・・キルン、２・・・・・・内張り耐
火レンガ、３・・・・・・突出部、１０・・・・・・異
形レンガ、１１，１２・・・・・・補強鉄筋、１３・・
・・・・ダンボール紙、１４・・・・・・アスベストヤ
ーンである。Figures 1a and b are explanatory diagrams showing the refractory brick according to the present invention installed in a rotary kiln, Figure 2 is a schematic diagram of reinforcing reinforcing bars embedded in the refractory brick according to the present invention, and Figure 3 is a portion of the rotary kiln. FIG. In the figure, 1... kiln, 2... lining refractory brick, 3... protrusion, 10... irregularly shaped brick, 11, 12...・・Reinforcement reinforcing bars, 13・・
...Cardboard paper, 14...Asbestos yarn.
Claims (1)
端部および軸周りに該鉄筋の溶融膨張に見合う量の紙類
やアスベストを詰込んで成型した後に一体焼成すること
を特徴とする補強鉄筋内蔵耐火レンガの製造方法。1. Reinforcement characterized by embedding reinforcing reinforcing bars inside the raw materials of bricks, filling the ends and shafts of the reinforcing bars with paper or asbestos in an amount commensurate with the melting expansion of the reinforcing bars, molding them, and then firing them together. A method for manufacturing refractory bricks with built-in reinforcing bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18696780A JPS5843354B2 (en) | 1980-12-29 | 1980-12-29 | Manufacturing method of fireproof bricks with built-in reinforcing bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18696780A JPS5843354B2 (en) | 1980-12-29 | 1980-12-29 | Manufacturing method of fireproof bricks with built-in reinforcing bars |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57111284A JPS57111284A (en) | 1982-07-10 |
| JPS5843354B2 true JPS5843354B2 (en) | 1983-09-26 |
Family
ID=16197854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18696780A Expired JPS5843354B2 (en) | 1980-12-29 | 1980-12-29 | Manufacturing method of fireproof bricks with built-in reinforcing bars |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5843354B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62113753A (en) * | 1985-11-11 | 1987-05-25 | 株式会社アイジー技術研究所 | Ceramic formed body |
| JP3202376B2 (en) * | 1992-12-28 | 2001-08-27 | 有限会社アドセラミックス研究所 | Ceramic sintered body with metal skeleton |
-
1980
- 1980-12-29 JP JP18696780A patent/JPS5843354B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57111284A (en) | 1982-07-10 |
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