JPS63169484A - Method of kneading casting refractory - Google Patents
Method of kneading casting refractoryInfo
- Publication number
- JPS63169484A JPS63169484A JP31526886A JP31526886A JPS63169484A JP S63169484 A JPS63169484 A JP S63169484A JP 31526886 A JP31526886 A JP 31526886A JP 31526886 A JP31526886 A JP 31526886A JP S63169484 A JPS63169484 A JP S63169484A
- Authority
- JP
- Japan
- Prior art keywords
- kneading
- poured
- refractory
- coarse aggregate
- refractories
- 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
- 238000004898 kneading Methods 0.000 title claims description 13
- 238000000034 method Methods 0.000 title claims description 9
- 238000005266 casting Methods 0.000 title 1
- 239000011819 refractory material Substances 0.000 claims description 23
- 238000010276 construction Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 239000011230 binding agent Substances 0.000 claims description 5
- 239000011449 brick Substances 0.000 claims description 5
- 238000009415 formwork Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000011823 monolithic refractory Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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】
産業上の利用分野
本発明は、溶融金属容器の流し込み耐火物の混練方法に
関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for kneading cast refractories in molten metal containers.
従来の技術
Ｗｔａ鍋、溶鋼鍋、出銑樋、タンディソシェ、その他の
溶融金属容器の流し込み耐火物に粗骨材を混合すると、
施工体の単位重量当りのコストが低減できて好ましい、
しかし、流し込み耐火材に粗骨材を添加する場合、ミキ
サー内に粗骨材を添加すると、粗骨材の吸水性が大きい
ために、ミキサーでの混練中に流し込み耐火材が施工性
を失ってしまい、目的とする施工体に均質にかつ十分な
充填性をもって施工することが困難であった。Conventional technology When coarse aggregate is mixed into the pouring refractory of Wta ladle, molten steel ladle, tap sluice, tandy sochet and other molten metal containers,
It is preferable because the cost per unit weight of the construction body can be reduced.
However, when adding coarse aggregate to poured refractory materials, if the coarse aggregate is added to the mixer, the coarse aggregate has high water absorption, so the poured refractory materials lose workability during mixing in the mixer. Therefore, it was difficult to apply it uniformly and with sufficient filling properties to the target construction body.
発明が解決しようとするＤＢ点
そのため、粗骨材と流し込み耐火材とを別々に投入した
り、粗骨材に吸水防止の被膜をコーティングしたり、必
要以上に緻密な粗骨材を使用したりしているが、施工価
格を高騰するものであった。DB points that the invention aims to solve: Therefore, coarse aggregate and poured refractory materials are charged separately, coarse aggregate is coated with a film to prevent water absorption, or coarse aggregate that is more dense than necessary is used. However, this resulted in a steep rise in construction costs.
また、粗骨材に予め十分含水させたり、混練時に必要以
上の水分を添加して流し込み耐火物の施工性がなくなる
のを防ぐことも行われていたが、過剰な水分を加えるこ
とで、施工体の強度低下をまねいたたり、施工体の硬化
時間の延長をまねいたりしていた。In addition, methods have been used to prevent the loss of workability of cast refractories by making the coarse aggregate sufficiently hydrated in advance or adding more water than necessary during kneading. This led to a decrease in the strength of the construction body and caused an extension of the curing time of the construction body.
問題点を解決するための手段
本発明は以上のような点に鑑みたもので、上記の間８点
を解消できる、溶融金属容器と内張り施工用型枠との間
の充填用空間部に流し込む流し込み耐火物の混練方法に
おいて、粒度の小さい流し込み耐火材をバインダー溶液
または水と十分に混練した後、耐火れんが、不定形耐火
物の使用前や使用後の耐火材あるいは粗材を目的として
製造された骨材等の粗骨材を上記混練物中に短時間投入
するとともに混合して排出し、溶融金属容器と内張り施
工用型枠との間の充填用空間部に流し込み自在に形成し
たことを特徴とする流し込み耐火物の混練方法を提供す
るにある。Means for Solving the Problems The present invention has been developed in view of the above points, and it is possible to solve the above eight problems by pouring molten metal into the filling space between the container and the formwork for lining construction. In the mixing method for cast refractories, after thoroughly kneading the cast refractory material with a small particle size with a binder solution or water, it is manufactured for the purpose of refractory material or rough material before or after use of refractory bricks and monolithic refractories. Coarse aggregate, such as aggregate, is put into the kneaded material for a short time, mixed and discharged, and freely poured into the filling space between the molten metal container and the lining construction form. The object of the present invention is to provide a method for kneading cast refractories characterized by:
作用
本発明によれば、粒度の小さい流し込み耐火材をバイン
ダー溶液または水と十分に混練した混練物中に、粗骨材
を短時間、粗骨材の吸水量が増えない程度に混合して排
出することによって、粗骨材を添加しても流し込み耐火
物の施工性を十分に保たれて、充填用空間部に均一状に
流動充填できて、施工体の強度も低下せず、施工費の低
減もはかることができるものである。According to the present invention, coarse aggregate is mixed in a kneaded material made by sufficiently kneading a cast refractory material with a small particle size with a binder solution or water for a short period of time to the extent that the water absorption of the coarse aggregate does not increase, and then the mixture is discharged. By doing so, even when coarse aggregate is added, the workability of poured refractories is maintained sufficiently, the filling space can be filled uniformly, the strength of the constructed body is not reduced, and construction costs are reduced. It is also something that can be measured.
実施例 以下、本発明を実施例にもとすいて説明する。Example Hereinafter, the present invention will be explained based on examples.
本発明の溶融金属容器と内張り用型枠との間の充填用空
間部に流し込むための耐火物は、粒度が５〜Ｌｏｚｍの
粗粒や１〜５鶴の中粒や１．０寵以下の細粒および微粉
の粒度の小さい流し込み耐火材と、１００ｍの篩を通過
する位の耐火れんが、不定形耐火物の使用前や、使用後
の骨材、粗材を目的として製造された骨材、天然の耐火
物の原料から得られる骨材等の耐火性の粗骨材とを混合
して形成するものである。その混合にあっては、先ず前
者の粒度の小さい流し込み耐火材をそれぞれの材料に通
した量のバインダー溶液または水とミキサーに装填して
１〜５分の比較的短かい時間内で十分に混練する。この
十分に混練した流し込み材料の混合液中に、後者の粗骨
材を２０〜５０ｆｆｉ量％の必要量だけ一時に投入し、
５〜６０秒の１分以内の短時間で強力に混練し、粗骨材
の吸水量が増える前にミキサーから排出し、ベルトコン
ベヤー等のｉ通な搬送手段で搬送して、所定の溶融金属
容器に投入するものである。The refractory to be poured into the filling space between the molten metal container and the lining formwork of the present invention may have a coarse particle size of 5 to 5 lozm, a medium particle size of 1 to 5 lozm, or a particle size of 1.0 loz or less. Aggregate manufactured for the purpose of pouring refractory materials with small particle size of fine particles and powder, refractory bricks that can pass through a 100 m sieve, aggregates before and after use of monolithic refractories, and aggregates manufactured for coarse materials. It is formed by mixing fire-resistant coarse aggregate such as aggregate obtained from natural refractory raw materials. For mixing, first, the former cast refractory material with a small particle size is loaded into a mixer with binder solution or water in the amount that passed through each material, and thoroughly kneaded within a relatively short time of 1 to 5 minutes. do. Into this sufficiently kneaded mixture of pouring materials, the required amount of the latter coarse aggregate of 20 to 50 ffi amount % is added at once,
The coarse aggregate is kneaded vigorously for a short time (within 1 minute, 5 to 60 seconds), discharged from the mixer before the water absorption of the coarse aggregate increases, and transported by a conveyor such as a belt conveyor to form the molten metal. It is put into a container.
施工例
たとえば、ｌｄ用の大型子ミキサーに粒度の小さい流し
込み耐火材を１０００ｋｇ投入し、攪拌器で十分に攪拌
する。そして、攪拌しながら、所要のバインダー溶液を
外掛６％添加して２分間混練する。この２分間で十分に
混練した流し込み耐火材に粗骨材を４００ｋｇ一時に投
入する。１５秒間十分に混練した後、ただちにミキサー
から排出し、ベルトコンベヤーで取鍋の外周壁の永久張
りれんがと内張り用の型枠との間の充填用空間部に流し
込み、所要のバイブレータ−で振動して流動充填する０
以上を取鍋の充填用空間部の容積に対して必要回数、た
とえば１０〜ＩＳ回位くり返して施工するものである。Construction example: For example, 1000 kg of poured refractory material with small particle size is put into a large mixer for LD, and thoroughly stirred with a stirrer. Then, while stirring, 6% of the required binder solution was added and kneaded for 2 minutes. 400 kg of coarse aggregate is added at once to the pouring refractory material which has been sufficiently kneaded during these 2 minutes. After thoroughly kneading for 15 seconds, the mixture is immediately discharged from the mixer, poured into the filling space between the permanent bricks on the outer peripheral wall of the ladle and the lining formwork using a belt conveyor, and vibrated with the required vibrator. 0
The above process is repeated a necessary number of times, for example, 10 to IS times, for the volume of the filling space of the ladle.
Ｖ小しよｊマ 眼ルオハ↓丸１％顛五４ナエ輌１！↓流
動性よく充填用空間部に充填でき、施工体の単位重量当
りのコストの低減がはかれる粗骨材の添加を技術的に安
定してかつ均一に行えることができたものである。V small jma eye ruoha ↓ 1% round 54 nae 1! ↓It is possible to technically stably and uniformly add coarse aggregate, which can be filled into the filling space with good fluidity and reduces the cost per unit weight of the construction body.
特に、定形れんが、不定形れんがを問わず、これらの使
用後の耐火物を粗砕した粗骨材の利用も十分にかつ確実
に行えるもので、資源の再利用がはがれ、省資源化に寄
与できるものである。In particular, it is possible to fully and reliably use coarse aggregate made by crushing refractories after use, regardless of whether they are regular or irregular bricks, allowing for reuse of resources and contributing to resource conservation. It is possible.
なお、上記した粗骨材の吸水量Ｖは、単位時間当りの吸
水率をａ、粗骨材の添加量をＷ、混練時間をｔとすると
、ｖ−ａｘｗｘｔで表すことができるもので、吸水量Ｖ
の最適条件を得るように粗骨材の選別、添加量、混練時
間を上記のように選択することによって、流動充填性の
よい流し込み耐火物の混合状態を技術的に十分に管理す
ることができるものである。The water absorption amount V of the coarse aggregate mentioned above can be expressed as v-axwxt, where a is the water absorption rate per unit time, W is the amount of coarse aggregate added, and t is the kneading time. Quantity V
By selecting the coarse aggregate selection, addition amount, and kneading time as described above so as to obtain the optimal conditions for It is something.
発明の効果
以上のように本発明にあっては、粗骨材を粒度の小さい
流し込み耐火材に添加しても、流し込み耐火材の培＠ｈ
４牛を漬牛六斗ス啼シかビー 罪西小ぐムΔば容器の充
填用空間に均一状に流動性よ（充填でき、また粗骨材に
過剰な水分を添加して施工体の強度を低下したり、施工
体の硬化時間の延長をまねくということなく、技術的に
安定して、安価にかつ能率的に施工することができる優
れた効果を奏するものである。Effects of the Invention As described above, in the present invention, even if coarse aggregate is added to a poured refractory material with a small particle size, the culture of the poured refractory material will be reduced.
4. Pickling the cows to make them more fluid. It has the excellent effect of being technically stable, inexpensive, and efficient in construction without reducing the strength or prolonging the curing time of the construction body.
Claims (2)
空間部に流し込む流し込み耐火物の混練方法において、
粒度の小さい流し込み耐火材をバインダー溶液または水
と十分に混練した後、耐火れんが、不定形耐火物の使用
前や使用後の耐火材あるいは粗材を目的として製造され
た骨材等の粗骨材を上記混練物中に短時間投入するとと
もに混合して排出し、溶融金属容器と内張り施工用型枠
との間の充填用空間部に流し込み自在に形成したことを
特徴とする流し込み耐火物の混練方法。(1) In a method for kneading poured refractories poured into a filling space between a molten metal container and a formwork for lining construction,
Coarse aggregates, such as aggregates manufactured for the purpose of refractory materials or rough materials before or after use of refractory bricks and monolithic refractories, after thoroughly kneading cast refractory materials with a small particle size with a binder solution or water. Kneading of cast refractories characterized in that the above-mentioned kneaded material is charged into the kneaded material for a short time, mixed and discharged, and is freely poured into a filling space between a molten metal container and a formwork for lining construction. Method.
の１分間以内にわたって粗骨材を粒度の小さい流し込み
耐火材の混練物中に投入し、混合して排出する特許請求
の範囲第１項記載の流し込み耐火物の混練方法。(2) A patent claim in which coarse aggregate is poured into a kneaded mixture of refractory material with a small particle size for a period of approximately 5 to 60 seconds, within a range where the water absorption amount of the coarse aggregate does not increase, and is mixed and discharged. A method for kneading a cast refractory according to Scope 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31526886A JPS63169484A (en) | 1986-12-27 | 1986-12-27 | Method of kneading casting refractory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31526886A JPS63169484A (en) | 1986-12-27 | 1986-12-27 | Method of kneading casting refractory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63169484A true JPS63169484A (en) | 1988-07-13 |
Family
ID=18063374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31526886A Pending JPS63169484A (en) | 1986-12-27 | 1986-12-27 | Method of kneading casting refractory |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63169484A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006046895A (en) * | 2004-07-06 | 2006-02-16 | Kurosaki Harima Corp | Construction method of indeterminate form refractory |
| JP2007015184A (en) * | 2005-07-06 | 2007-01-25 | Kurosaki Harima Corp | Continuous kneading method for monolithic refractory containing large coarse particles and continuous kneading machine |
-
1986
- 1986-12-27 JP JP31526886A patent/JPS63169484A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006046895A (en) * | 2004-07-06 | 2006-02-16 | Kurosaki Harima Corp | Construction method of indeterminate form refractory |
| JP4575852B2 (en) * | 2004-07-06 | 2010-11-04 | 黒崎播磨株式会社 | Construction method of irregular refractories |
| JP2007015184A (en) * | 2005-07-06 | 2007-01-25 | Kurosaki Harima Corp | Continuous kneading method for monolithic refractory containing large coarse particles and continuous kneading machine |
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