JPS60226475A - Composite brick - Google Patents
Composite brickInfo
- Publication number
- JPS60226475A JPS60226475A JP8347484A JP8347484A JPS60226475A JP S60226475 A JPS60226475 A JP S60226475A JP 8347484 A JP8347484 A JP 8347484A JP 8347484 A JP8347484 A JP 8347484A JP S60226475 A JPS60226475 A JP S60226475A
- Authority
- JP
- Japan
- Prior art keywords
- brick
- bricks
- composite
- coating
- composite brick
- 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
- 239000011449 brick Substances 0.000 title claims description 39
- 239000002131 composite material Substances 0.000 title claims description 15
- 239000000919 ceramic Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000007751 thermal spraying Methods 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000005524 ceramic coating Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
- C04B41/5031—Alumina
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Insulators (AREA)
- Table Devices Or Equipment (AREA)
- Memory System Of A Hierarchy Structure (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】
本発明は複合れんが、さらに詳しくは耐コーチング性、
耐摩耗性などの諸特性を改善した複合れんかに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to composite bricks, more specifically coating resistance,
This invention relates to composite bricks with improved properties such as wear resistance.
従来技術の問題点
従来１例えばセメント焼成プロセス中のプレヒーターの
れんがは通常シャモットれんがが装着されている。しか
し、該プレヒーターの高温ゾーンでは原料に一部液相が
生じるため付着性を生じ、れんが面にコーチングが付き
やすかった。しかも、そのコーチングを除去する作業に
は多大な手間を要していた。Problems with the Prior Art Conventional Art 1 For example, the bricks of the preheater during the cement firing process are usually equipped with chamotte bricks. However, in the high-temperature zone of the preheater, a part of the raw material forms a liquid phase, which causes adhesion and tends to form a coating on the brick surface. Moreover, the task of removing the coaching required a great deal of effort.
又、コーチングの付着しない低温ゾーンでは原料が摩耗
性を有しているため、該シャモットれんがは原料に当接
されて摩耗しやすかった。Furthermore, since the raw material is abrasive in the low-temperature zone where the coating does not adhere, the chamotte bricks were easily abraded by coming into contact with the raw material.
従来このような高温ゾーンにおける問題点を解決するた
めに耐コーチング性にすぐれ耐摩耗性を有する電鰭れん
がを用いることが提案され、採用されつつある。In order to solve these problems in high-temperature zones, it has been proposed to use electric fin bricks that have excellent coating resistance and wear resistance, and are now being adopted.
しかし、電鎚れんがは重量が大で、かつ、硬いので加工
性、及び施工性に劣り、また、きわめて高価である欠点
を有している。However, electric hammer bricks are heavy and hard, so they have poor workability and workability, and they are also extremely expensive.
このことからセメント焼成プロセス中のプレヒーターに
用いられる耐火れんかには、通常の耐熱性に加えて、さ
らに耐コーチング性、耐摩耗性が改善されることが望ま
れていた。For this reason, it has been desired that refractory bricks used in preheaters during the cement firing process have improved coating resistance and abrasion resistance in addition to normal heat resistance.
これらと同しような問題が製鉄工業、金属精錬工業、セ
ラミックス工業、高温での反応を伴う化学工業等に用い
られる焼成炉、焼結炉、原料予熱炉、乾燥炉、反応炉に
用いられるれんかにおいても生じ。Similar problems arise with bricks used in firing furnaces, sintering furnaces, raw material preheating furnaces, drying furnaces, and reaction furnaces used in the steel industry, metal smelting industry, ceramics industry, chemical industry that involves reactions at high temperatures, etc. It also occurs in
改善された諸特性を有するれんがが望まれていた。Bricks with improved properties were desired.
本発明の目的
本発明者はれんが固有の特性を失うことなく、該れんが
の諸特性を改善したれんがを提供するよう研究した結果
、セラミックスを容射することにより基材のれんがの表
面にセラミックス層を形成すれば、得られる複合れんが
の特性は基材のれんがの特性に加えてセラミックスの特
性が複合され、前記問題点を解決し得るとの知見を得て
本発明を完成するにいたった。Purpose of the Invention The present inventor has conducted research to provide a brick that improves various properties without losing the properties inherent to the brick, and has found that by injecting ceramics, the surface of the base brick is coated with a ceramic layer. The present invention was completed based on the finding that the properties of the composite brick obtained by forming a composite brick would combine the properties of the ceramic as well as the properties of the base material brick, and that the above-mentioned problems could be solved.
発明の要旨
本発明の要旨は基材とするれんがの表面にセラミックス
を溶射してなることを特徴とする複合れんかにある。SUMMARY OF THE INVENTION The gist of the present invention is a composite brick characterized by being formed by thermally spraying ceramics onto the surface of a brick serving as a base material.
本発明に用いられるセラミックスは基材れんがの特性を
改善するのに寄与するもののう、ちから適宜選ばれる。The ceramics used in the present invention are appropriately selected from those that contribute to improving the properties of the base brick.
例えばセメント焼成のプレヒーターに用いられる複合れ
んかには、基材れんがとして通常のシャモットれんがを
用い、これと組み合わされるセラミックスには窒化けい
素、炭化けい素、アルミナ、ジルコニア、チタニア、マ
グネシア、チタニア−マグネシアなどが示される。For example, composite bricks used in preheaters for cement firing use regular chamotte bricks as the base brick, and the ceramics used in combination with these bricks include silicon nitride, silicon carbide, alumina, zirconia, titania, magnesia, and titania. -Magnesia etc. are shown.
溶射するには慣用の溶射機を用いて行なう。Thermal spraying is carried out using a conventional thermal spraying machine.
本発明によれば借景のセラミックスを基材れんかにコー
チングするだけで、得られる複合れんがは基材れんがの
特性だけでなく、セラミックスの特性が発揮できるので
、基材れんがの欠点が十分に補強される。According to the present invention, by simply coating the base brick with borrowed ceramics, the resulting composite brick can exhibit not only the characteristics of the base brick but also the characteristics of ceramics, so the defects of the base brick can be sufficiently reinforced. be done.
また、本発明の複合れんがはセラミックスコーチングを
薄くするだけでよいので、軽量で、かつ、硬くならず加
工性、施工性にすぐれている。Moreover, since the composite brick of the present invention only needs to have a thin ceramic coating, it is lightweight, does not become hard, and has excellent workability and workability.
さらに、本発明の複合れんがはその表面がセラミックス
で平滑に被覆されているので、耐コーチング性にすぐれ
ている。Furthermore, since the surface of the composite brick of the present invention is smoothly coated with ceramic, it has excellent coating resistance.
さらに本発明の複合れんがは僅かな高級セラミック被覆
で、その全体が高級セラミックス品として作用するので
、高級なセラミックス品を安価に使用し得る。Further, the composite brick of the present invention has only a small amount of high-grade ceramic coating, and the entire brick acts as a high-grade ceramic product, so high-grade ceramic products can be used at low cost.
実施例
シャモットれんが（ＳＫ３２）の表面に溶射機を用いて
アルミナ紛を溶射した。アルミナの溶射層の厚みは０．
２ｍ＋であった。得られた複合れんがをサスペンション
プレヒータ一つきロータリーキルン（ＮＳＰロータリキ
ルン）のプレヒーターハウジングの内壁に装着した。Example Alumina powder was thermally sprayed onto the surface of chamotte bricks (SK32) using a thermal spraying machine. The thickness of the sprayed alumina layer is 0.
It was 2m+. The obtained composite brick was attached to the inner wall of a preheater housing of a rotary kiln equipped with one suspension preheater (NSP rotary kiln).
ついでこの複合れんがを装着したロータリーキルンを稼
働して、セメントクリンカ−を連続製造した。Next, a rotary kiln equipped with this composite brick was operated to continuously produce cement clinker.
複合れんがのコーチング付着の程度をめた。このさいの
コーチング除去作業の頻度は３日に１度の割であった。The degree of coating adhesion of composite bricks was evaluated. The frequency of coating removal work at this time was once every three days.
しかも作業は１回当り３０分で終了した。Moreover, the work was completed in 30 minutes each time.
これは、従来のシャモットれんかに（ＳＫ３２）使用時
のコーチング除去作業頻度が４時間に１回の割合で、し
かも１回の掃除に２時間も要していた事を考えると、格
段の進歩であることがわかる。This is a significant improvement considering that when using the conventional Chamotte Renka (SK32), the coating was removed once every four hours, and it took two hours to clean it once. I understand that there is something.
特許出願人 日本セメント株式会社 代理人 弁理士 浅野 豐司Patent applicant: Nippon Cement Co., Ltd. Agent: Patent Attorney Toshiji Asano
Claims (1)
れんがComposite brick made by spraying ceramics onto the surface of the base material brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8347484A JPS60226475A (en) | 1984-04-25 | 1984-04-25 | Composite brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8347484A JPS60226475A (en) | 1984-04-25 | 1984-04-25 | Composite brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60226475A true JPS60226475A (en) | 1985-11-11 |
Family
ID=13803459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8347484A Pending JPS60226475A (en) | 1984-04-25 | 1984-04-25 | Composite brick |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60226475A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57100988A (en) * | 1980-12-13 | 1982-06-23 | Kyushu Refractories | Industrial furnace lining refractory brick |
| JPS57140384A (en) * | 1981-02-18 | 1982-08-30 | Sumitomo Metal Ind | Ceramic coating formation |
-
1984
- 1984-04-25 JP JP8347484A patent/JPS60226475A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57100988A (en) * | 1980-12-13 | 1982-06-23 | Kyushu Refractories | Industrial furnace lining refractory brick |
| JPS57140384A (en) * | 1981-02-18 | 1982-08-30 | Sumitomo Metal Ind | Ceramic coating formation |
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