JP2004053195A - Kneader and construction device for monolithic refractory - Google Patents

Kneader and construction device for monolithic refractory Download PDF

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Publication number
JP2004053195A
JP2004053195A JP2002213723A JP2002213723A JP2004053195A JP 2004053195 A JP2004053195 A JP 2004053195A JP 2002213723 A JP2002213723 A JP 2002213723A JP 2002213723 A JP2002213723 A JP 2002213723A JP 2004053195 A JP2004053195 A JP 2004053195A
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JP
Japan
Prior art keywords
kneading
kneader
refractory
primary
refractory material
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.)
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JP2002213723A
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Japanese (ja)
Inventor
Ryosuke Nakamura
中 村 良 介
Seiji Nagai
永 井 誠 二
Makoto Nanba
難 波   誠
Junichiro Okuhara
奥 原 潤一郎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shinagawa Refractories Co Ltd
Original Assignee
Shinagawa Refractories Co Ltd
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Priority to JP2002213723A priority Critical patent/JP2004053195A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To miniaturize a kneader so that it can be conveyed and disposed at a narrow position and effectively knead a refractory. <P>SOLUTION: A granulated refractory is kneaded with water to use the obtained refractory in a wet type construction device for constructing a place to be constructed. A primary kneader 6A in which the granulated refractory is received to a frame capable of being conveyed and water is added thereto to agitate and knead the material is disposed in an upper stage. A secondary kneader 6B has an inlet port 16 facing an outlet port 13 of the refractory kneaded in the primary kneader to agitate and knead the refractory received from the inlet port and is disposed in a lower stage. The moving directions of the refractory of the primary kneader 6A and the secondary kneader 6B are opposite to each other to continuously knead the materials. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は不定形耐火物の混練装置およびこの装置を用いた不定形耐火物による施工装置に関する。
【0002】
【従来の技術】
従来から、製鋼設備などにおいて用いられる取鍋やタンディッシュ、その他の耐火物による内張り構造を有する構造物の補修には、不定形耐火物を施工する施工方法によっており、なかでも湿式施工によるものが一般的である。
【0003】
この湿式施工が吹き付け施工の場合は、予め配合された粉粒状の耐火材料に水を加えて混練し、混練された耐火材料をバインダを含む圧縮エアにより吹付けノズルから要補修箇所へ向けて吹付けるようになされている。
【0004】
上記の吹付け材料と水との混練には湿式施工装置に含まれる混練機によって行なわれ、この混練機で混練された耐火材料をホースを通じてノズルへ導くようになされている(例えば特開平6−55110号、同5−345121号の各公報参照)。
【0005】
【発明が解決しようとする課題】
しかして上記従来の湿式施工装置は、耐火材料と水とを混練する混練機が一段式、すなわち耐火材料を受け入れてから混練し終わるまで一段の混練機で混練する構造であるため、混練機を含む湿式施工装置が大型(長さ4800×幅2200×高さ2800mm)となり、そのため補修すべき箇所の近辺が挟隘な場所では要補修箇所の近傍に湿式施工装置を設置することが不可となる。
【0006】
したがって要補修箇所から離れた広い場所に湿式施工装置を設置し、そこからホースを要補修箇所まで導くことが必要となる。
【0007】
それ故配管距離が長くなるため、ホースを含む配管系に耐火材料が多く残存してしまい、耐火材料の無駄が多くなるばかりでなく、一段タイプの混練機であるため混練時間を十分にとることができず、混練されない粉粒状の耐火材料が排出されることになって材料圧送ポンプの吸込み側およびその配管に詰りを生じやすいという問題があった。
【0008】
本発明はこれに鑑み、耐火材料の混練機を改良し、湿式施工装置の小型化を図り、施工箇所近くの挟隘な場所への搬送設置を可能とすると同時に耐火材料の混練を良好に行わせることができる不定形耐火物の混練装置およびそれを用いた不定形耐火物の施工装置を提供することを課題としてなされたものである。
【0009】
【課題を解決するための手段】
上記課題を解決する手段として本発明は、粉粒状耐火材と水とを混練して不定形耐火物の原料となる混練物を得るための混練装置において、搬送可能とされた架枠内に、粉粒状耐火材を受け入れて搬送し水を添加して攪拌混練する一次混練機を上段に配し、この一次混練機で混練された耐火材料の排出口に受入口を臨ませ該受入口から受け入れた耐火材料を攪拌混練する二次混練機を下段に配し、前記一次混練機内と二次混練機内とで材料移動方向を逆方向として連続混練するようにしたことを特徴とする。
【0010】
こうしたことにより、上段の一次混練機において粉粒状耐火材に水を十分に分散させて攪拌混練が行われたのち二次混練機へ移行して耐火材と水との攪拌混練が十分に行われるので、粉粒状耐火材が粉粒状のまま排出されて供給されることが解消され、材料圧送ポンプの吸込み側やホースを詰らせることがない。
【0011】
また一次混練機と二次混練機とが上下に配されていても、耐火材料は連続的に移送されるので、途中での滞留もなく、所定区間流れて十分な攪拌混練を行うことができる。
【0012】
さらに一次混練機と二次混練機とは上下に配設されているので、搬送可能な構成としても攪拌混練に必要な長さを十分にとることが可能となり、また装置としての長さが半減されることから湿式施工装置をよりコンパクトに構成することができ、挟隘な場所への設置も可能となって湿式施工装置から施工箇所までの距離を短くすることができ、ホース内への耐火材料の残留量も少なく、かつ詰りも生じにくくすることができる。
【0013】
前記一次混練機は、ケーシングと、このケーシングの上流端に設けられ粉粒状耐火材を投入するためのホッパと、このホッパの直下位置に回動自在に設けられ投入された粉粒状耐火材を下流方向へ移動する上段ミキサフィーダ部を構成するスクリューコンベアと、このスクリューコンベアに続いて回動自在に設けられ攪拌羽根が放射方向に植設され上段ミキサ混練部を構成する攪拌軸と、前記スクリューコンベアより下流位置のケーシングに設けられた水供給口とを具え、前記二次混練機は、ケーシングと、このケーシングの上流端の前記受入口の直下位置のケーシング内に回動自在に設けられ下段ミキサフィーダ部を構成するスクリューコンベアと、このスクリューコンベアに続いて回動自在に設けられ攪拌羽根が放射方向に植設され下段ミキサ混練部を構成する攪拌軸と、この攪拌軸の下流端位置に設けられた混練済み耐火材料の排出口とを具える構成とすることが好ましい。
【0014】
上記混練装置は単独の混練用として使用し得ることはもとより、不定形耐火物の流し込み施工、吹き付け施工、圧入施工に用いる施工装置と組み合わせて一体化またはシステム化された施工装置の一部として使用することができる。
【0015】
上記施工装置における不定形耐火物の圧送手段としては、圧縮エア式、ポンプ式など既存の手段を単独または組み合わせて使用することができる。また混練装置のホッパから施工部所まで混練物を移送または圧送する間に添加剤を添加する装置を付設することができる。
【0016】
なおこの添加剤としては、施工体の硬化速度の調節、施工体の保形性の付与、その他種々の機能を有するものであり、混練装置内で耐火材料に混入混練するか、施工直前に添加するなど、各々の特性に合わせて用いられる。
【0017】
【発明の実施の形態】
以下、本発明を図面に示す実施の形態を参照して説明する。
【0018】
図1〜図4は本発明による不定形耐火物混練装置を具えた施工装置の一例として、可搬型の湿式吹付け装置1とした場合の一実施形態を示しており、図1は正面図、図2は平面図、図3は側面図、図4は図3のA−A矢視図を示している。
【0019】
上記可搬型湿式吹付け装置1は搬送可能な架枠2を有し、この架枠2は底部2aと側枠2bとで構成され、本実施形態ではフォークリフトで搬送を可能とするため前記底部2aの下面にフォーク挿入部3,3が設けられ、中段にはステージ4が架設されていて作業用スペースとされ、架枠2に対し着脱可能な梯子5により昇降することができるよおうになっている。なお可搬型湿式吹付け装置1の運搬手段としては、フォークリフトに限らず、天井クレーン等による吊持搬送であってもよい。
【0020】
前記ステージ4の下部には、粉粒状耐火材と水とを混合して攪拌混練する混練装置6が設置され、ステージ4の上部一側にはその粉粒状耐火材を受け入れるためのホッパ7が設置されている。
【0021】
上記混練装置6は、図5に拡大して示すように上段に配置される一次混練機6Aと、その直下の下段に配置される二次混練機6Bとで構成され、これら一次混練機6Aと二次混練機6Bとは一連となって連続的に混練するように構成されている。
【0022】
上記一次混練機6Aは、円筒状を有するケーシング8の上流端で前記ホッパ7の下端位置に回動自在に配設されて上段ミキサフィーダ部を構成するスクリューコンベア9と、このスクリューコンベア9の下流側のケーシング8内に該スクリューコンベア9と同軸として設けられ図6(A)のように複数枚の攪拌羽根10,10…が放射方向にかつ螺旋状に植設されて上段ミキサ混練部を構成する攪拌軸11と、この攪拌軸11の上流端近くの位置に設けられた水供給口12とを具え、ケーシング8の下流端の下面には混練済みの吹付け材料を排出する排出口13が開口されている。
【0023】
前記スクリューコンベア9および攪拌軸11はモータ14(図1、図3示)により回転駆動され、ホッパ7を通じて投入される粉粒状耐火材をスクリューコンベア9および攪拌軸11の攪拌羽根10,10…により図5において右(上流側)から左(下流側)へ搬送し、ケーシング8内で粉粒状耐火材と水とを攪拌混練するようになっている。
【0024】
前記二次混練機6Bは、円筒状を有するケーシング15の上流端の上部に前記一次混練機6Aの排出口13に臨んで開口された受入口16と、この受入口16の直下位置のケーシング15内に設けられ下段ミキサフィーダ部を構成するスクリューコンベア17と、このスクリューコンベア17の下流側のケーシング15内に該コンベア17と同軸として設けられ図6(B)のように複数枚の攪拌羽根18,18…が放射方向にかつ螺旋状に植設されて下段ミキサ混練部を構成する攪拌軸19とを具え、ケーシング15の下流端の下面には混練済みの吹付け材料を排出する排出口20が開口されている。
【0025】
前記スクリューコンベア17および攪拌軸18はモータ21(図3示)により回転駆動され、一次混練機6Aの排出口13から受入口16を通じてケーシング15内に供給される吹付け材料をスクリューコンベア17および攪拌軸19の攪拌羽根18,18…により図5において左(上流側)から右(下流側)へ搬送しつつ攪拌混練するようになっている。
【0026】
図示の実施形態では、図3にみられるように、2基のモータ14,21を並設し、このモータ14,21の出力軸上のスプロケット22,23と前記各混練機6A,6Bの軸上のスプロケット24,25とにチェン26,27が巻回され、それぞれ逆方向に回転させるようになされている。
【0027】
前記二次混練機6Bの排出口20の下部にはアジテータホッパ28が設置され、このアジテータホッパ28の排出口29と材料圧送ポンプ30の吸込み口30aとが配管31で接続されており、この材料圧送ポンプ30がモータ32により駆動されることにより前記アジテータホッパ28から混練済みの吹き付け材料を吸引して材料圧送ポンプ30の吐出口30bに接続されるホース33(図7示)を通じ吹付けノズル34へ吹付け材料を圧送するようになっている。
【0028】
図7は吹付け作業時における可搬型湿式吹付け装置1の使用の一形態を示しており、前記吹き付けノズル34には前記架枠2に搭載されたバインダ供給ポンプ35からホース36を通じて送られるバインダと、エアコンプレッサ等の圧縮エア供給源(図示省略)からホース37を通じて供給される圧縮エアとがコンバインされて供給され、その圧縮エアのエア圧により前記ホース33を通じて供給される吹付け材料にバインダを混合して吹付け施工面38へ向け吹付けるようになされる。
【0029】
なお図7中符号39は、粉粒状耐火材の補給例としてフレキシブルコンテナバッグ(フレコンバッグ)を示し、天井クレーン40により吊りフック41を介してフレコンバッグ39を吊持し、前記ホッパ7の直上へ搬送して該バッグ39の下端を開けてホッパ7内に粉粒状耐火材を補給するようにした場合を示している。
【0030】
また図1〜図4において符号42は抜き差し式の安全棚、43はフレコンバッグ39の載置台、44はバインダタンク、45はホッパ7のバイブレータ、48はクレーンによる吊持用金具を示す。
【0031】
次に上記実施形態の作用を説明する。
【0032】
吹付け作業に先立って、可搬型湿式吹付け装置1を一般のトラックに車載して施工現場近くへ運搬し、次いでフォークリフト(または天井クレーン等)により積み下ろして設置位置を定め、配管やホースの接続、水・エア配管、電気配線等のユーティリティを行なう。
【0033】
次に天井クレーン40によりフレコンバッグ39を用いて粉粒状耐火材をホッパ7上に運搬し、ここでフレコンバッグ39を載置台42上に載せてその下端を開口させ、粉粒状耐火材をホッパ7内に投入するとともに、一次混練機6Aおよび二次混練機6Bを駆動させる。
【0034】
ホッパ7内に受け入れた粉粒状耐火材は、上段ミキサフィーダ部のスクリューコンベア9により順次一次混練機6Aのケーシング8内に送り込まれ、ここで粉粒状耐火材に水供給口12から供給される水が添加されて攪拌羽根10,10…により混練されながらこの攪拌羽根10,10…の螺旋配列により上段ミキサ混練部の下流端に至り、排出口13から順次下方へ排出される。
【0035】
排出口13から出た一次混練済みの耐火材はその直下に位置する二次混練機6Bの受入口16に受け入れられ、その領域にある下段ミキサフィーダ部のスクリューコンベア17により一次混練機6Aとは逆方向へ搬送され、下段ミキサ混練部に至ってその攪拌軸19の攪拌羽根18,18…により混練されながら攪拌羽根18,18…の螺旋配列により下段ミキサ混練部の下流端に搬送されて排出口20から排出される。
【0036】
上記のようにして混練され、吹付け可能な状態とされた吹付け材料は、排出口20から排出されてアジテータホッパ28内に一次貯蔵され、ここで攪拌される。
【0037】
吹付けに際し、材料圧送ポンプ30を起動すると、アジテータホッパ28内に一次貯蔵されていた吹付け材料が吸引されて配管31,ホース33を通じてノズル34へ圧送され、ホース36,37を通じて供給される圧縮エアおよびバインダと共にノズル34から施工面38に向けて吹付け施工を行なう。
【0038】
吹付け作業終了後、ホース類の洗浄を行なうとともにユーティリティの後仕末を行ない、フォークリフト(または天井クレーン等)により可搬型湿式吹付け装置1をトラックに積載して次の作業現場へ運搬する。
【0039】
【発明の効果】
以上説明したように本発明の不定形耐火物の混練装置によれば、上段の一次混練機において粉粒状耐火材に水を十分に分散させて攪拌混練し、次いで下段の二次混練機へ移行して耐火材と水との攪拌混練が十分に行われるので、粉粒状耐火材が粉粒状のまま排出されて供給されることが解消され、不定形耐火物施工装置に組み入れたとき材料圧送ポンプの吸込み側や配管を詰らせることがない。
【0040】
また一次混練機と二次混練機とが上下に配されていても、耐火材料は連続的に移送されるので、途中での滞留もなく、所定区間流れて十分な攪拌混練を行うことができる。
【0041】
さらに一次混練機と二次混練機とは上下に配設されているので、搬送可能な構成としても攪拌混練に必要な長さを十分にとることが可能となり、また装置としての長さが半減されることから湿式施工装置をよりコンパクトに構成することができ、挟隘な場所への設置も可能となって湿式施工装置から施工箇所までの距離を短くすることができ、ホース内への耐火材料の残留量も少なく、かつ詰りも生じにくくすることができる。
【図面の簡単な説明】
【図1】本発明による不定形耐火物混練装置を具えた施工装置の一実施形態を示す正面図。
【図2】同、平面図。
【図3】同、側面図。
【図4】図3のA−A矢視図。
【図5】同、要部の拡大断面図。
【図6】(A)は図5のB−B矢視図、(B)は同C−C矢視図。
【図7】同、使用状態の例示図。
【符号の説明】
1 可搬型湿式吹付け装置
2 架枠
6 混練装置
6A 一次混練機
6B 二次混練機
8,15 ケーシング
9,17 スクリューコンベア
10,18 攪拌羽根
11,19 攪拌軸
12 水供給口
13,20 排出口
16 受入口
28 アジテータホッパ
30 材料圧送ポンプ
34 吹付けノズル
35 バインダポンプ
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an apparatus for kneading irregular-shaped refractories and a construction apparatus using irregular-shaped refractories using the apparatus.
[0002]
[Prior art]
Conventionally, repairs of ladles, tundishes, and other structures with a refractory lining used in steelmaking equipment, etc., have been carried out by construction methods involving the use of irregular-shaped refractories. General.
[0003]
In the case of this wet construction, spraying is performed by adding water to the powdered refractory material previously mixed and kneading the mixture, and then blowing the kneaded refractory material from the spray nozzle toward the repair-required point with compressed air containing a binder. It is made to attach.
[0004]
The above-mentioned kneading of the spraying material and water is performed by a kneading machine included in a wet construction apparatus, and the refractory material kneaded by the kneading machine is guided to a nozzle through a hose (for example, see Japanese Unexamined Patent Application Publication No. 55110 and 5-345121.
[0005]
[Problems to be solved by the invention]
Thus, the above-mentioned conventional wet construction apparatus has a one-stage kneader for kneading the refractory material and water, that is, a structure in which the kneader is kneaded with a one-stage kneader until the kneading is completed after the refractory material is received. Included wet construction equipment becomes large (length 4800 x width 2200 x height 2800 mm), so it becomes impossible to install a wet construction equipment in the vicinity of a required repair point in a place where the vicinity of the part to be repaired is narrow. .
[0006]
Therefore, it is necessary to install a wet-type construction device in a wide place away from the repair-required location, and to guide the hose from there to the repair-required location.
[0007]
Therefore, since the piping distance is long, a large amount of refractory material remains in the piping system including the hose, and not only waste of the refractory material is increased, but also sufficient kneading time due to the single-stage kneader. However, there is a problem that the powdery refractory material which is not kneaded is discharged and the suction side of the material pump and the piping thereof are easily clogged.
[0008]
In view of this, the present invention has improved a refractory material kneading machine, reduced the size of a wet-type construction apparatus, and made it possible to carry and install the refractory material in a confined place near a construction site, and at the same time, satisfactorily knead the refractory material. SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus for kneading irregular-shaped refractories and a construction apparatus for irregular-shaped refractories using the same.
[0009]
[Means for Solving the Problems]
As a means for solving the above problems, the present invention is a kneading apparatus for kneading powder and granular refractory material and water to obtain a kneaded material serving as a raw material of an amorphous refractory, in a frame that can be transported, A primary kneader for receiving and transporting the powdery and granular refractory material, adding water, and stirring and kneading is arranged in the upper stage, and a discharge port of the refractory material kneaded by the primary kneader faces the receiving port and is received from the receiving port. A secondary kneader for stirring and kneading the refractory material is arranged in a lower stage, and the material is moved continuously in the primary kneader and in the secondary kneader in opposite directions, so that continuous kneading is performed.
[0010]
Due to this, in the upper primary kneader, the water is sufficiently dispersed in the powdery and granular refractory material, and the mixture is stirred and kneaded. After that, the process proceeds to the secondary kneader, and the stirring and kneading of the refractory material and water is sufficiently performed. Therefore, it is possible to eliminate the problem that the particulate refractory material is discharged and supplied in the form of particulates, and the clogging of the suction side and the hose of the material feeding pump is prevented.
[0011]
In addition, even if the primary kneader and the secondary kneader are arranged vertically, the refractory material is continuously transferred, so that there is no stagnation on the way, and it is possible to perform sufficient stirring and kneading by flowing in a predetermined section. .
[0012]
Further, since the primary kneader and the secondary kneader are arranged vertically, it is possible to take a sufficient length for stirring and kneading even in a transportable configuration, and the length of the device is reduced by half. As a result, the wet construction equipment can be configured more compactly, can be installed in confined places, the distance from the wet construction equipment to the construction site can be shortened, and fire resistance in the hose The residual amount of the material can be reduced, and clogging can be suppressed.
[0013]
The primary kneading machine includes a casing, a hopper provided at the upstream end of the casing for charging the powdered refractory material, and a rotatably provided powdery refractory material provided directly below the hopper for downstream. A screw conveyor that constitutes an upper mixer feeder section that moves in the direction, a stirring shaft that is rotatably provided following the screw conveyor, and a stirring blade that is implanted in a radial direction to constitute an upper mixer kneading section; and the screw conveyor. A water supply port provided in a casing at a more downstream position, wherein the secondary kneader is rotatably provided in the casing at a position immediately below the receiving port at an upstream end of the casing, and a lower mixer is provided. A screw conveyor that constitutes a feeder unit, and a stirring blade that is rotatably provided following the screw conveyor and is installed in a radial direction, A stirring shaft constituting the hexa kneading section, it is preferable to have a structure comprising an outlet for the kneaded refractory material provided at a downstream end position of the stirring shaft.
[0014]
The above-mentioned kneading device can be used as a single kneading device, but it is also used as a part of an integrated or systemized construction device in combination with a construction device used for casting, spraying, or press-fitting irregular-shaped refractories. can do.
[0015]
As the means for pumping the irregular-shaped refractory in the construction apparatus, existing means such as a compressed air type or a pump type can be used alone or in combination. In addition, a device for adding an additive during transfer or pressure feeding of the kneaded material from the hopper of the kneading device to the work site can be provided.
[0016]
The additive has various functions such as adjustment of the curing speed of the construction body, provision of shape retention of the construction body, and other various functions. It is used according to each characteristic.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described with reference to embodiments shown in the drawings.
[0018]
FIGS. 1 to 4 show one embodiment of a portable wet spraying apparatus 1 as an example of a construction apparatus having an irregular refractory kneading apparatus according to the present invention. FIG. 1 is a front view, FIG. 2 is a plan view, FIG. 3 is a side view, and FIG. 4 is a view taken along line AA of FIG.
[0019]
The portable wet spraying apparatus 1 has a frame 2 that can be transported, and the frame 2 is composed of a bottom 2a and a side frame 2b. In the present embodiment, the bottom 2a is used to enable transport by a forklift. Fork insertion parts 3 and 3 are provided on the lower surface of the rim, and a stage 4 is erected in the middle tier to provide a working space, which can be moved up and down by a ladder 5 detachable from the frame 2. I have. Note that the transporting means of the portable wet spraying device 1 is not limited to a forklift, and may be a suspended transport using an overhead crane or the like.
[0020]
A kneader 6 for mixing and stirring and kneading the granular refractory material and water is provided below the stage 4, and a hopper 7 for receiving the particulate refractory material is provided at one upper side of the stage 4. Have been.
[0021]
The kneading device 6 is composed of a primary kneader 6A arranged at an upper stage as shown in an enlarged view in FIG. 5 and a secondary kneader 6B arranged at a lower stage immediately below the primary kneader 6A. The secondary kneader 6B is configured to be continuously kneaded in a series.
[0022]
The primary kneader 6A is rotatably disposed at a lower end position of the hopper 7 at an upstream end of a cylindrical casing 8 and constitutes an upper mixer feeder section, and a downstream of the screw conveyor 9. A plurality of agitating blades 10, 10... Are radially and spirally implanted in a casing 8 on the side of the screw conveyor 9 as shown in FIG. And a water supply port 12 provided at a position near the upstream end of the stirring shaft 11, and a discharge port 13 for discharging the kneaded spray material is provided on the lower surface of the downstream end of the casing 8. It is open.
[0023]
The screw conveyor 9 and the stirring shaft 11 are rotationally driven by a motor 14 (FIGS. 1 and 3), and the refractory material supplied through the hopper 7 is fed by the screw conveyor 9 and the stirring blades 10 of the stirring shaft 11. In FIG. 5, the powder is conveyed from the right (upstream) to the left (downstream), and the refractory powder and water are stirred and kneaded in the casing 8.
[0024]
The secondary kneader 6B includes a receiving port 16 opened at an upper portion of an upstream end of a casing 15 having a cylindrical shape and facing a discharge port 13 of the primary kneading device 6A, and a casing 15 located immediately below the receiving port 16. And a plurality of stirring blades 18 provided coaxially with the conveyor 17 in a casing 15 downstream of the screw conveyor 17 as shown in FIG. 6B. , 18 are radially and helically implanted and constitute a lower mixer kneading section. The lower end of the downstream end of the casing 15 has a discharge port 20 for discharging the kneaded spray material. Is open.
[0025]
The screw conveyor 17 and the stirring shaft 18 are rotationally driven by a motor 21 (shown in FIG. 3), and spray material supplied into the casing 15 from the discharge port 13 of the primary kneader 6A through the receiving port 16 is mixed with the screw conveyor 17 and the stirring shaft 18. The stirring blades 18, 18,... Of the shaft 19 are configured to stir and knead while conveying from left (upstream) to right (downstream) in FIG.
[0026]
In the illustrated embodiment, as shown in FIG. 3, two motors 14 and 21 are arranged in parallel, and sprockets 22 and 23 on output shafts of the motors 14 and 21 and shafts of the respective kneaders 6A and 6B. Chains 26 and 27 are wound around the upper sprockets 24 and 25, respectively, and are rotated in opposite directions.
[0027]
An agitator hopper 28 is provided below the outlet 20 of the secondary kneader 6B. The outlet 29 of the agitator hopper 28 and the inlet 30a of the material pump 30 are connected by a pipe 31. The pump 32 is driven by a motor 32 to suck the kneaded spray material from the agitator hopper 28 and spray a nozzle 34 through a hose 33 (shown in FIG. 7) connected to a discharge port 30b of the material pump 30. The material to be sprayed is fed under pressure.
[0028]
FIG. 7 shows an embodiment of the use of the portable wet spraying device 1 during spraying work. A binder supplied from a binder supply pump 35 mounted on the frame 2 to the spraying nozzle 34 through a hose 36. And compressed air supplied through a hose 37 from a compressed air supply source (not shown) such as an air compressor, and the combined air is supplied. The air pressure of the compressed air supplies a binder to the blowing material supplied through the hose 33. Are mixed and sprayed toward the spraying construction surface 38.
[0029]
7, reference numeral 39 denotes a flexible container bag (flexible bag) as an example of replenishment of the powdery and granular refractory material. The flexible crane bag 39 is hung by the overhead crane 40 via the hanging hook 41, and is directly above the hopper 7. A case is shown in which the lower end of the bag 39 is conveyed to open the hopper 7 to replenish the powdery and granular refractory material.
[0030]
1 to 4, reference numeral 42 denotes a removable safety shelf, 43 denotes a mounting table of the flexible container bag 39, 44 denotes a binder tank, 45 denotes a vibrator of the hopper 7, and 48 denotes a hanging bracket by a crane.
[0031]
Next, the operation of the above embodiment will be described.
[0032]
Prior to the spraying operation, the portable wet spraying device 1 is carried on a general truck and transported to the vicinity of the construction site, and then loaded and unloaded by a forklift (or an overhead crane or the like) to determine an installation position, and to connect pipes and hoses. And utilities such as water / air piping and electrical wiring.
[0033]
Next, the granular refractory material is conveyed onto the hopper 7 by the overhead crane 40 using the flexible container bag 39, where the flexible container bag 39 is placed on the mounting table 42 and the lower end thereof is opened. And the primary kneader 6A and the secondary kneader 6B are driven.
[0034]
The powdery and granular refractory material received in the hopper 7 is sequentially fed into the casing 8 of the primary kneader 6A by the screw conveyor 9 of the upper mixer feeder section, where water supplied to the powdery and granular refractory material from the water supply port 12 is supplied. Are added and are kneaded by the stirring blades 10, 10,..., Reach the downstream end of the upper mixer kneading section by the spiral arrangement of the stirring blades 10, 10,.
[0035]
The primary kneaded refractory material discharged from the discharge port 13 is received in the receiving port 16 of the secondary kneader 6B located immediately below the refractory material, and is separated from the primary kneader 6A by the screw conveyor 17 of the lower mixer feeder section in that region. Are conveyed in the opposite direction, reach the lower mixer kneading section, and are kneaded by the stirring blades 18, 18,... Of the stirring shaft 19, and are conveyed to the downstream end of the lower mixer kneading section by the spiral arrangement of the stirring blades 18, 18,. Exhausted from 20.
[0036]
The spray material which has been kneaded as described above and which can be sprayed is discharged from the discharge port 20 and temporarily stored in the agitator hopper 28, where it is stirred.
[0037]
When the material pumping pump 30 is started during spraying, the spraying material primarily stored in the agitator hopper 28 is sucked, is sent to the nozzle 34 via the pipe 31 and the hose 33, and is supplied through the hoses 36 and 37. The spraying is performed from the nozzle 34 to the working surface 38 together with the air and the binder.
[0038]
After the spraying operation, the hoses are washed and the utility is finished, and the portable wet spraying device 1 is loaded on a truck by a forklift (or an overhead crane) and transported to the next work site.
[0039]
【The invention's effect】
As described above, according to the kneading device for irregular-shaped refractories of the present invention, the upper primary kneader sufficiently disperses water in the granular refractory material, stirs and kneads the mixture, and then shifts to the lower secondary kneader. The refractory material and water are sufficiently agitated and kneaded, so that the refractory material in the form of powder and granules can be prevented from being discharged and supplied as it is. There is no clogging of the suction side and piping.
[0040]
In addition, even if the primary kneader and the secondary kneader are arranged vertically, the refractory material is continuously transferred, so that there is no stagnation on the way, and it is possible to perform sufficient stirring and kneading by flowing in a predetermined section. .
[0041]
Further, since the primary kneader and the secondary kneader are arranged vertically, it is possible to take a sufficient length for stirring and kneading even in a transportable configuration, and the length of the device is reduced by half. As a result, the wet construction equipment can be configured more compactly, can be installed in confined places, the distance from the wet construction equipment to the construction site can be shortened, and fire resistance in the hose The residual amount of the material can be reduced, and clogging can be suppressed.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of a construction apparatus provided with an irregular refractory kneading apparatus according to the present invention.
FIG. 2 is a plan view of the same.
FIG. 3 is a side view of the same.
FIG. 4 is a view taken in the direction of arrows AA in FIG. 3;
FIG. 5 is an enlarged sectional view of a main part of the same.
6A is a view taken in the direction of arrows BB in FIG. 5, and FIG. 6B is a view taken in the direction of arrows CC in FIG.
FIG. 7 is a view showing an example of a state of use.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Portable wet spraying apparatus 2 Frame 6 Kneading apparatus 6A Primary kneading machine 6B Secondary kneading machine 8, 15 Casing 9, 17 Screw conveyor 10, 18 Stirring blade 11, 19 Stirring shaft 12 Water supply port 13, 20 Outlet 16 Receiving port 28 Agitator hopper 30 Material pumping pump 34 Spray nozzle 35 Binder pump

Claims (5)

粉粒状耐火材と水とを混練して不定形耐火物の原料となる混練物を得るための混練装置において、搬送可能とされた架枠内に、粉粒状耐火材を受け入れて搬送し水を添加して攪拌混練する一次混練機を上段に配し、この一次混練機で混練された耐火材料の排出口に受入口を臨ませ該受入口から受け入れた耐火材料を攪拌混練する二次混練機を下段に配し、前記一次混練機内と二次混練機内とで材料移動方向を逆方向として連続混練するようにしたことを特徴とする不定形耐火物の混練装置。In a kneading apparatus for kneading powdery and granular refractory material and water to obtain a kneaded material that is a raw material of an amorphous refractory, the powdery and granular refractory material is received and transported in a frame that can be transported and water is transferred. A primary kneader for addition and stirring and kneading is arranged in the upper stage, and a secondary kneader for stirring and kneading the refractory material received from the receiving port with the receiving port facing the discharge port of the refractory material kneaded by the primary kneading apparatus. Is arranged in a lower stage, and the material is moved in opposite directions in the primary kneader and the secondary kneader so that continuous kneading is performed. 前記一次混練機は、ケーシングと、このケーシングの上流端に設けられ粉粒状耐火材を投入するためのホッパと、このホッパの直下位置に回動自在に設けられ投入された粉粒状耐火材を下流方向へ移動する上段ミキサフィーダ部を構成するスクリューコンベアと、このスクリューコンベアに続いて回動自在に設けられ攪拌羽根が放射方向に植設され上段ミキサ混練部を構成する攪拌軸と、前記スクリューコンベアより下流位置のケーシングに設けられた水供給口とを具え、前記二次混練機は、ケーシングと、このケーシングの上流端の前記受入口の直下位置のケーシング内に回動自在に設けられ下段ミキサフィーダ部を構成するスクリューコンベアと、このスクリューコンベアに続いて回動自在に設けられ攪拌羽根が放射方向に植設され下段ミキサ混練部を構成する攪拌軸と、この攪拌軸の下流端位置に設けられた混練物の排出口とを具えている請求項1記載の不定形耐火物の混練装置。The primary kneading machine includes a casing, a hopper provided at the upstream end of the casing for charging the powdered and granular refractory material, and a rotatably provided powdery and particulate refractory material immediately below the hopper for downstream. A screw conveyor that constitutes an upper mixer feeder section that moves in the direction, a stirring shaft that is rotatably provided following the screw conveyor, and a stirring blade that is implanted in a radial direction to constitute an upper mixer kneading section; and the screw conveyor. A water supply port provided in a casing at a more downstream position, wherein the secondary kneader is rotatably provided in the casing at a position immediately below the receiving port at an upstream end of the casing, and a lower mixer is provided. A screw conveyor that constitutes a feeder unit, and a stirring blade that is rotatably provided following the screw conveyor and is installed in a radial direction, A stirring shaft constituting the hexa kneading section, kneading apparatus monolithic refractory of claim 1, characterized in that comprising an outlet of the kneaded material provided at a downstream end position of the stirring shaft. 前記請求項1または2記載の不定形耐火物の混練装置を具えている不定形耐火物の施工装置。An irregular refractory construction apparatus, comprising the irregular refractory kneading apparatus according to claim 1 or 2. 前記混練物を圧送する圧送装置を具えている請求項3記載の不定形耐火物の施工装置。The apparatus according to claim 3, further comprising a pumping device for pumping the kneaded material. 前記混練物による施工が、流し込み、吹き付け、圧入のいずれかである請求項3または4記載の不定形耐火物の施工装置。The construction apparatus for an irregular-shaped refractory according to claim 3 or 4, wherein the construction using the kneaded material is one of pouring, spraying, and press-fitting.
JP2002213723A 2002-07-23 2002-07-23 Kneader and construction device for monolithic refractory Withdrawn JP2004053195A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007292442A (en) * 2006-03-31 2007-11-08 Nippon Steel Corp Continuous kneading method for refractory, continuous construction method for refractory, continuous kneading device for refractory, and continuous construction device for refractory
KR101719306B1 (en) * 2017-01-09 2017-03-27 주식회사 유한정밀 Screw feeding type monolithic refractory input building Apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007292442A (en) * 2006-03-31 2007-11-08 Nippon Steel Corp Continuous kneading method for refractory, continuous construction method for refractory, continuous kneading device for refractory, and continuous construction device for refractory
KR101719306B1 (en) * 2017-01-09 2017-03-27 주식회사 유한정밀 Screw feeding type monolithic refractory input building Apparatus

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