JPS5811381A - Sand for sand sealing of heat treatment furnace - Google Patents
Sand for sand sealing of heat treatment furnaceInfo
- Publication number
- JPS5811381A JPS5811381A JP10960881A JP10960881A JPS5811381A JP S5811381 A JPS5811381 A JP S5811381A JP 10960881 A JP10960881 A JP 10960881A JP 10960881 A JP10960881 A JP 10960881A JP S5811381 A JPS5811381 A JP S5811381A
- Authority
- JP
- Japan
- Prior art keywords
- sand
- heat treatment
- treatment furnace
- heat
- sealing
- 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
- 239000004576 sand Substances 0.000 title claims description 40
- 238000010438 heat treatment Methods 0.000 title claims description 11
- 238000007789 sealing Methods 0.000 title claims description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- 239000003779 heat-resistant material Substances 0.000 claims description 6
- 229910052845 zircon Inorganic materials 0.000 claims description 5
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- 229910052609 olivine Inorganic materials 0.000 claims description 3
- 239000010450 olivine Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 42
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 239000000377 silicon dioxide Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 4
- 244000035744 Hura crepitans Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Tunnel Furnaces (AREA)
- Furnace Details (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】
本発明は台車の作業性が向上し、かつ窯の熱損失の少な
い熱処理炉サンドシール用サンドに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat treatment furnace sand sealing sand that improves the workability of the cart and reduces heat loss in the furnace.
従来、熱処理炉特にトンネル窯において、窯業製品を焼
成する場合、製品を積む台車が窯内を通る際に窯内両側
の下部に鉄板で溝（サンドボックス）を作り、この中に
砂を入れて、台車の両側に取りつけられた鉄板が、この
溝の中を通る様に構成され、台車下の加熱を防いでいる
。従来この様なサンドシール用サンドには入手容品で安
価である珪砂を用いていた。しかし、珪砂では窯中の熱
によって珪砂粒表面が溶融し易くなり、珪砂粒倉庫に固
まりが生成するきらいがあった。そのため熱等によりサ
ンドシール鉄板の変形が進み、かつ台車の両側に取りつ
けられた鉄板（エプロン）が移動することにより空隙が
生じ、この空隙を珪砂が埋められずサンドシールの本来
の効果は全く示されなくなる。また、サンドの流動性が
なくなると、エプロンの移動も円滑に行かず、甚だしい
場合は一箇所に停止し、作業操作の停滞を生ずるおそれ
もあった。更に、この生じた空隙を通って、側壁と台車
の間から流れる熱風が台車の下に入り台車を損傷する場
合もあった。Conventionally, when firing ceramic products in a heat treatment furnace, particularly a tunnel kiln, when the trolley carrying the product passes through the kiln, grooves (sandboxes) are made with iron plates at the bottom of both sides of the kiln, and sand is poured into these grooves. Iron plates attached to both sides of the truck are configured to pass through this groove to prevent heating under the truck. Conventionally, silica sand, which is readily available and inexpensive, has been used as sand for such sand seals. However, with silica sand, the surface of the silica sand grains tends to melt due to the heat in the kiln, and agglomerates tend to form in the silica sand grain warehouse. As a result, the deformation of the sand seal steel plate progresses due to heat, etc., and the steel plates (aprons) attached to both sides of the trolley move, creating a void, which cannot be filled with silica sand, and the original effect of the sand seal is lost. It will no longer be done. Furthermore, if the sand loses its fluidity, the apron will not move smoothly, and in extreme cases, it may stop at one place, causing a stagnation of work operations. Furthermore, hot air flowing from between the side wall and the truck may enter under the truck through the created gap and damage the truck.
本発明者等はこれらの欠点のない熱処理炉サンドシール
用サンドを得るため研究を重ね、同サンドは耐熱性、流
動性、サンドの形状等の諸種の性質が関連するため、多
くの耐熱材料について鋭意研究を行った結果、耐火度５
Ｋ３７°以上を有し、略球形の耐熱材が極めて良好なサ
ンド材料であることを見い出し本発明を完成した。The present inventors have conducted extensive research in order to obtain sand for heat treatment furnace sand seals that does not have these drawbacks, and since the sand is related to various properties such as heat resistance, fluidity, and the shape of the sand, it has been found that many heat-resistant materials have As a result of intensive research, fire resistance level 5
The present invention was completed by discovering that a substantially spherical heat-resistant material having a K of 37° or more is an extremely good sand material.
本発明は耐火度５Ｋ３７°以上を有する略球形の耐熱材
よりなる熱処理炉サンドシール用サンドであり、高熱下
においても粒子相互に固まりが生ずることがなく、常に
流動性を保持しているサンドである。The present invention is a heat treatment furnace sand sealing sand made of a substantially spherical heat-resistant material with a fire resistance of 5K37° or more, and the sand always maintains fluidity without causing particles to clump together even under high heat. be.
本発明に用いる耐火度５Ｋ３７°以上、略球形の耐熱材
としては、球状ジルコン、マグネシアクリンカ−、オリ
ビンサンド、中空アルミナ等がある。Approximately spherical heat-resistant materials with a fire resistance of 5K37° or more used in the present invention include spherical zircon, magnesia clinker, olivine sand, hollow alumina, and the like.
球状ジルコンは一般にジルコンサンドとよばれるもので
、安息角が約６°、耐火度５Ｋ３８°以上であり、粒度
は南アフリカ度のもので０．４２〜０．１５ｆｉ １
５％、０．１５〜０．０７４鶴 ８５％、オーストラリ
ア度のもので０．４２〜０．１５＋ｍ ９０％、０．
１５〜０．０７４鶴１０％ である。マグネシアクリン
カ−は安息角カ約３０ ” 、ｉｔ火度ｓ Ｋ２Ｓ 〜
４０°、粒度ハ１〜０．５ｗｌ＃″＾
父％、０．５〜０．２■ １０％、０．２日以下 ４０
％の塩基性球状物質である。オリビンサンドは安息角が
約４０°、耐火度５Ｋ３７°、粒度は０．５〜０．２■
冊％、０．２鶴以下 加％ の塩基性物質である。中
空アルミナは安息角が約６°、耐火度ＳＫ約３８°、粒
度は１〜０．５ｗｍ ６０％、０．５〜０．２ｆｉあ
％、０．２鶴以下 １５％ の中性の中空球状物質であ
る０以上の耐熱材中ジルコンサンドが最も良好である。Spherical zircon is generally called zircon sand, and has an angle of repose of about 6 degrees, a fire resistance of 5K38 degrees or more, and a particle size of 0.42 to 0.15 fi 1 in South African degrees.
5%, 0.15-0.074 crane 85%, Australian degree 0.42-0.15+m 90%, 0.
15-0.074 crane 10%. Magnesia clinker has an angle of repose of about 30" and a fire temperature of K2S ~
40°, particle size: 1~0.5wl#''^ Parent%, 0.5~0.2■ 10%, 0.2 days or less 40
% basic spherical material. Olivine sand has an angle of repose of approximately 40°, a fire resistance of 5K37°, and a particle size of 0.5 to 0.2■
It is a basic substance with a concentration of less than 0.2%. Hollow alumina is a neutral hollow sphere with an angle of repose of approximately 6 degrees, a refractory rating of SK approximately 38 degrees, and a particle size of 1 to 0.5 wm 60%, 0.5 to 0.2 fi %, and 0.2 or less 15%. Zircon sand is the best among the heat-resistant materials of 0 or more.
そして粒径は７０％以上が１ｍ以下のものであれば使用
でき、粒径０．０７４鶴より小さいものが艶％以下、好
ましくは２０％以下のものを使用するとよい。As for the particle size, it can be used as long as 70% or more is 1 m or less, and it is preferable to use particles whose particle size is less than 0.074 mm, preferably 20% or less.
これらのサンドシール用サンドはそれぞれ単独で用いて
もよいが、これらの２種以上を混合して使用してもよい
。その混合する種類並びに混合割合は、それぞれ、使用
する箇所の情況に応じて、技術熟練者が適宜選択使用す
る。Each of these sand sealing sands may be used alone, or two or more of these may be used in combination. The types and mixing ratios to be mixed are appropriately selected and used by a skilled technical person depending on the circumstances of the place where they are used.
本発明の熱処理炉サンドシール用サンドの使用法は、従
来の砂を用いたサンドシールの使用法と同じである。即
ち、熱処理炉内の両側下部に沿って鉄板で作られている
溝（サンドボックス）中に、本発明のサンドを入れ、台
車の両側に取りつけられた鉄板が、この溝の中を通る様
に構成されている。The method of using the sand for heat treatment furnace sand seals of the present invention is the same as the method of using conventional sand seals using sand. That is, the sand of the present invention is placed in grooves (sandboxes) made of iron plates along both lower sides of the heat treatment furnace, and the iron plates attached to both sides of the cart are passed through the grooves. It is configured.
本発明のサンドは耐火性が高く、流動性が良好であり、
微粒、球状のため隙間に入り易く、熱処理炉内の高温下
においても焼結その他の現象が生ずることなく、常に流
動性を保持しているため、台車上と台車下の間の熱を遮
断でき、炉圧の変動が少なく、かつ操炉し昌く、燃料使
用量を著しく削減することができる効果を奏するもので
ある。The sand of the present invention has high fire resistance and good fluidity,
Because of its fine grain and spherical shape, it easily gets into the gaps, and it always maintains fluidity without sintering or other phenomena even at high temperatures in the heat treatment furnace, so it can block the heat between the top and bottom of the cart. This has the effect of reducing fluctuations in furnace pressure, making the furnace easier to operate, and significantly reducing the amount of fuel used.
特許出願人 黒 崎 窯 業 株式会社代理人 伊東
寸志（ほか１名）Patent applicant: Kurosaki Ceramics Co., Ltd. Agent: Sunshi Ito (and one other person)
Claims (1)
なることを特徴とする熱処理炉サンドシール用サンド。 ２、耐火度５Ｋ３７°以上を有する略球形のサンドが球
状ジルコン、マグネシアクリンカ−、オリビンサンド、
中空アルミナである特許請求の範囲第１項記載の熱処理
炉サンドシール用サンド。[Claims] 1. Sand for a heat treatment furnace sand seal, characterized in that it is made of a substantially spherical heat-resistant material having a fire resistance of 5K37° or more. 2. Roughly spherical sand with a fire resistance of 5K37° or higher is spherical zircon, magnesia clinker, olivine sand,
The sand for heat treatment furnace sand sealing according to claim 1, which is hollow alumina.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10960881A JPS5811381A (en) | 1981-07-13 | 1981-07-13 | Sand for sand sealing of heat treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10960881A JPS5811381A (en) | 1981-07-13 | 1981-07-13 | Sand for sand sealing of heat treatment furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5811381A true JPS5811381A (en) | 1983-01-22 |
Family
ID=14514593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10960881A Pending JPS5811381A (en) | 1981-07-13 | 1981-07-13 | Sand for sand sealing of heat treatment furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5811381A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57145059A (en) * | 1981-02-27 | 1982-09-07 | Denki Kagaku Kogyo Kk | Additive for hydraulic bonding agent |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4829561U (en) * | 1971-08-16 | 1973-04-11 |
-
1981
- 1981-07-13 JP JP10960881A patent/JPS5811381A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4829561U (en) * | 1971-08-16 | 1973-04-11 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57145059A (en) * | 1981-02-27 | 1982-09-07 | Denki Kagaku Kogyo Kk | Additive for hydraulic bonding agent |
| JPS5849506B2 (en) * | 1981-02-27 | 1983-11-04 | 電気化学工業株式会社 | Additives for hydraulic binders |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3892584A (en) | Monolithic refractory materials | |
| US3942990A (en) | Method for producing foamed ceramics | |
| US20090114365A1 (en) | Material used to combat thermal expansion related defects in high temperature casting processes | |
| JPS5811381A (en) | Sand for sand sealing of heat treatment furnace | |
| US5888586A (en) | Use of a water-containing fire-resistant ceramic casting material | |
| US3678143A (en) | Use of refractory parting layer to aid skull removal from furnace linings | |
| JPS6111906B2 (en) | ||
| IE40377L (en) | Refractory linings on hot metallurgical ladles. | |
| Kalantar et al. | Developing two new tundish plasters and comparing with the magnesia plaster used in continuous casting of steel | |
| JP3794914B2 (en) | Ceramic adhesive | |
| JPS6158867A (en) | Flame spray material for furnace wall maintenance | |
| US2703445A (en) | Process of making refractory ware | |
| US3010837A (en) | Refractory furnace and ladle lining materials | |
| US4111706A (en) | Sealing and filling material for metallurgical applications | |
| JPH03159967A (en) | Lining material of container for molten metal | |
| JPS59137368A (en) | Refractories for repairment | |
| US2240159A (en) | Refractory cement | |
| JPS61132559A (en) | Manufacture of zircon refractories | |
| JPH09157043A (en) | Casting refractory for blast-furnace launder | |
| JPS6096579A (en) | Dilatant flowable castable | |
| JPS5855680A (en) | Method of lining metallurgical furnace | |
| RU2116274C1 (en) | Refractory binding material for lining of high-temperature assemblies | |
| JPS60145968A (en) | Lining joint filler for molten metal vessel | |
| JPH02221165A (en) | Monolithic refractory for molten steel ladle bed part | |
| JPH0680477A (en) | Monolithic refractory for laying on ladle |