JPS61132566A - High temperature slit filling mortar - Google Patents

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、高温間隙充填モルタルに関し、更に詳しくは
、溶銑鍋あるいはトーピードカー等の注入口に載置され
る掩蓋の間隙等のごとく、高温炉装置或いは高温容器の
高温雰囲気にお髪する間隙の充填モルタルに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a high-temperature gap-filling mortar, and more specifically, it is used in high-temperature furnaces, such as in the gap of a cover placed on an injection port of a hot metal pot or a torpedo car. This invention relates to mortar filling a gap in a high-temperature atmosphere of a device or a high-temperature container.

〔従来の技術〕[Conventional technology]

最近、トーピードカー、溶銑鍋等の如き溶融金属容器内
において、溶融銑鉄の脱硫、脱珪素等不純物の除去、又
は合金成分の添加等の精錬成いは精錬時に生成するスラ
グの改質等の溶融スラグ処理等高温溶融物の処理が盛ん
に行われるようになった・ これら容器内での高温溶融物の処理においては、容器上
方に設けられている溶融物の注入、排出開口部に掩蓋を
載置し、溶融物の飛散或いは浴出を防止しているが、掩
蓋と開口縁との間隙部にはシャモット賞或いは珪石質混
練モルタルが充填され、溶融物の飛散或いは浴出を防止
している。Recently, molten slag has been used in molten metal containers such as torpedo cars, hot metal pots, etc. to remove impurities such as desulfurization and desiliconization of molten pig iron, or to refine slag produced during refining such as adding alloying components. Processing of high-temperature molten materials has become popular. ・When processing high-temperature molten materials in these containers, a cover is placed over the molten material injection and discharge openings provided above the container. However, the gap between the cover and the edge of the opening is filled with chamotte or siliceous kneaded mortar to prevent the melt from scattering or coming out.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

これら公知の充填モルタルは比較的高度な耐火物である
ために高価であるとともに、前記耐火物の粒子が角形状
を多く含むために、充填施工時の上記開口縁への圧送に
おいてビードポンプ或いは圧送パイプを激しく摩耗損傷
せしめる。These known filling mortars are expensive because they are relatively high-grade refractories, and since the refractory particles contain many angular shapes, bead pumps or pressure feeding pipes are required for pressure feeding to the opening edge during filling construction. causes severe wear and tear.

また、これら公知の充填モルタルは、高温使用後、剥離
性に乏しく更新充填において多大の労力と時間を要して
いる。Moreover, these known filling mortars have poor removability after use at high temperatures, and require a great deal of effort and time for renewal filling.

本発明は上記の如き欠点を解消した安価な、しかも極め
て作業性の優れた高温間隙充填モルタルを提供すること
を目的とする。The object of the present invention is to provide a high-temperature gap-filling mortar which is inexpensive and has extremely excellent workability, eliminating the above-mentioned drawbacks.

本発明はまた、産業廃棄物の有効活用を図ることができ
る高温間隙充填モルタルを提供することを目的とする。Another object of the present invention is to provide a high-temperature gap-filling mortar that can effectively utilize industrial waste.

〔問題点を解決するための手段〕[Means for solving problems]

上記問題点を解決する手段を以下詳細に説明する。 Means for solving the above problems will be explained in detail below.

本発明に係る高温間隙充填モルタルは木質砕粉８〜２０
重量％、粘土９２〜８０重瀘％の配合組成物に適量の水
を添加し、混練してなる高温間隙充填モルタルである。The high temperature gap filling mortar according to the present invention contains crushed wood powder of 8 to 20%
This is a high-temperature gap-filling mortar made by adding an appropriate amount of water to a blended composition containing 92 to 80% clay by weight and kneading the mixture.

本発明の高温間隙充填モルタルに配合される木質砕粉は
、製材時に発生するｇＡ断粉、即ち、おが（ずが一般に
用いられるが、各種の廃材をおがくず程度以下の大きさ
に摩砕して得た砕粉をも用いることができる。The crushed wood powder blended into the high-temperature gap-filling mortar of the present invention is gA shavings generated during sawing, that is, sawdust is generally used, but various waste materials are ground to the size of sawdust or smaller. The crushed powder obtained by

本発明において、上記木質砕粉の配合量は８〜２０％の
範囲内とすべきで、８％以下では、その配合の効果が充
分に得られず、一方、２０％以上の配合になると、木質
砕粉過剰のために必要な充　。In the present invention, the blending amount of the above-mentioned crushed wood powder should be within the range of 8 to 20%, and if it is less than 8%, the effect of the blend cannot be obtained sufficiently, while on the other hand, if it is blended more than 20%, Required charging due to excess wood powder.

填強度が得られな（なる。The filling strength cannot be obtained.

また、粘土は木質砕粉と混練して使用時の充填結合強度
を付与するものであって、その配合量が８０％以下では
、木質砕粉の割に粘土量が少なすぎて充分な強度を得る
ことができない、一方、粘土量が９２％以上では、過剰
となり無駄である。In addition, clay is mixed with crushed wood powder to provide filling bond strength during use, and if the blending amount is less than 80%, the amount of clay is too small compared to the crushed wood powder, and sufficient strength cannot be obtained. On the other hand, if the amount of clay is 92% or more, it becomes excessive and wasteful.

本発明の高温間隙充填モルタルは上記の如くであるが、
以下、さらに、その実施例について述べる。The high temperature gap filling mortar of the present invention is as described above,
Examples thereof will be further described below.

〔実施例〕〔Example〕

製材時に排出される鋸断砕片のおがくずを粘土と第１表
の割合に配合して半流動状に混練してビードポンプにて
配管中を圧送して溶銑脱珪取鍋上面に２０ｍｍの厚さに
層状に載置し、その上に掩蓋を置き、溶銑脱珪処理を行
った。Sawdust from saw fragments discharged during lumber sawing is mixed with clay in the proportions shown in Table 1, kneaded into a semi-fluid state, and pumped through piping with a bead pump to form a 20 mm thick layer on the top of a hot metal desiliconization ladle. They were placed in layers, a cover was placed on top of them, and the hot metal was subjected to desiliconization treatment.

第１表 上記充填モルタル４ｔＯｎを圧送したが、ビードポンプ
及び圧送管の摩耗はほとんどなく、又脱珪処理における
高温に曝されて＠置された充填モルタルは型くずれする
こともなく、また充填モルタル中のおが（ずは炭化し、
耐久力を増加して脱珪吹練時において、溶銑の飛散逸出
或いは浴出はなく、完全に高温雰囲気下における充填効
果を達成することができた。Table 1: 4 tons of the above-mentioned filled mortar was pumped, but there was almost no wear on the bead pump and the pumping pipe, and the filled mortar, which had been exposed to high temperatures during the desiliconization process, did not lose its shape. sawdust (sawga carbonized,
With increased durability, there was no scattering or escape of hot metal during desiliconization blowing, and the filling effect in a high-temperature atmosphere could be completely achieved.

また、取鍋上縁面の充填モルタルの更新においても金物
への付着は殆どなく、容易に剥離することができた。Furthermore, when replacing the filling mortar on the upper edge of the ladle, there was almost no adhesion to metal objects and it could be easily peeled off.

また、上記充填モルタルの一部を分取し、マンフル電気
炉で酸化雰囲気中において、１２００℃の温度に３０分
間焼成試験を行ったが、一部炭化があったが、収縮も殆
どなく、充分な固結を得た。In addition, a part of the filled mortar was taken out and subjected to a firing test at a temperature of 1200°C for 30 minutes in an oxidizing atmosphere in a manful electric furnace, and although there was some carbonization, there was almost no shrinkage and the temperature was sufficient. A good solidification was obtained.

〔発明の効果〕〔Effect of the invention〕

本発明は、上記の如くであるので、高温雰囲気での充填
モルタルとして容器内容物のスプラッシュ等による逸散
、或いは生成スラグのバブリングによる浴出を防止する
ことができ、しかも取扱い時における輸送機器を損耗す
ることもなく、さらには除去時の剥離性に優れた安価な
充填モルタルである。Since the present invention is as described above, it is possible to prevent the contents of the container from escaping due to splashing or the like or from bubbling out of the generated slag when filling mortar in a high-temperature atmosphere. It is an inexpensive filling mortar that does not wear out and has excellent removability during removal.

手続補正書 昭和６０年　１月１１日 １、事件の表示 昭和５９年特　許　願第２５３６４５号住所 ヨシカワコウギョウ 氏名　吉川工業獣催 ４、代理人 氏名　（８２１６）弁上小児　益：（ ：、：、　　、ｉProcedural amendment January 11, 1985 1.Display of the incident 1981 Patent Application No. 253645 Address Yoshikawa Kogyo Name Yoshikawa Kogyojukai 4. Agent Name (8216) Benjo Pediatric Benefit: ( ：、：、　　、i

Claims (1)

【特許請求の範囲】[Claims] １、木質砕粉８〜２０重量％、粘土９２〜８０重量％の
配合組成物を水とともに混練してなることを特徴とする
高温間隙充填モルタル。1. A high-temperature gap-filling mortar characterized by kneading a blended composition of 8 to 20% by weight of crushed wood powder and 92 to 80% by weight of clay with water.