JPS5818348B2 - Spray repair material - Google Patents
Spray repair materialInfo
- Publication number
- JPS5818348B2 JPS5818348B2 JP53147818A JP14781878A JPS5818348B2 JP S5818348 B2 JPS5818348 B2 JP S5818348B2 JP 53147818 A JP53147818 A JP 53147818A JP 14781878 A JP14781878 A JP 14781878A JP S5818348 B2 JPS5818348 B2 JP S5818348B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- aluminum phosphate
- soda
- neutralized
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 title claims description 25
- 239000007921 spray Substances 0.000 title claims description 17
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 claims description 20
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 10
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 4
- 150000004760 silicates Chemical class 0.000 claims description 4
- 239000004014 plasticizer Substances 0.000 claims description 3
- 239000004848 polyfunctional curative Substances 0.000 claims 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 14
- 239000004744 fabric Substances 0.000 description 11
- 238000005507 spraying Methods 0.000 description 11
- 239000002893 slag Substances 0.000 description 9
- 239000011230 binding agent Substances 0.000 description 7
- 239000000395 magnesium oxide Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000004115 Sodium Silicate Substances 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 229910052911 sodium silicate Inorganic materials 0.000 description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 229910000805 Pig iron Inorganic materials 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000010459 dolomite Substances 0.000 description 4
- 229910000514 dolomite Inorganic materials 0.000 description 4
- 235000021317 phosphate Nutrition 0.000 description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000011449 brick Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000009628 steelmaking Methods 0.000 description 3
- 229910052845 zircon Inorganic materials 0.000 description 3
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910001570 bauxite Inorganic materials 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 235000011116 calcium hydroxide Nutrition 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- -1 silicate alkali salt Chemical class 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 description 1
- 229910052912 lithium silicate Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Ceramic Products (AREA)
Description
【発明の詳細な説明】
本発明は電気炉、取鍋等の製鋼炉や高炉樋、混銑車や各
種窯炉等の吹付補修材（以下、単に吹付材と称す）の結
合材に関するものである。[Detailed Description of the Invention] The present invention relates to a bonding material for spray repair materials (hereinafter simply referred to as spray materials) for steelmaking furnaces such as electric furnaces and ladles, blast furnace gutters, pig iron mixers, various kiln furnaces, etc. .
製鋼炉や高炉樋、混銑車等の内壁は溶鋼、溶銑等による
摩耗、スラグによる侵食等によって局部的に損傷を受け
、廃却されることが多い。The inner walls of steelmaking furnaces, blast furnace gutters, pig iron mixers, etc. are often scrapped because they are locally damaged by wear caused by molten steel and hot metal, erosion by slag, and the like.
この局部的な損傷部分を冷間または熱間に於て吹付補修
材をその内壁損傷部分に吹付てバランスを取ることによ
り炉寿命の延長さらには原単位、原単価の低減を計って
いる。By spraying repair material onto the damaged inner wall in cold or hot conditions to balance the local damage, the life of the furnace is extended, and the basic unit and unit cost are reduced.
このような吹付材には通常れんかに用いられている塩基
性骨材のドロマイト、−マグドロ、マグネシャ、マグク
ロやまた酸性、中性骨材の珪酸質、シャモット、アルミ
ナ、ジルコン等の耐火骨材が広く用いられている。Such sprayed materials include basic aggregates such as dolomite, magdro, magnesha, and maguro, which are usually used in brickworks, as well as acidic and neutral aggregates such as silicic acid, chamotte, alumina, and refractory aggregates such as zircon. is widely used.
又結合材としてはアルミナセメントや珪酸アルカリ塩又
はリン酸アルカリ塩等が単−又は混合して用いられてい
る。As the binding material, alumina cement, alkali silicate, alkali phosphate, etc. are used singly or in combination.
これらに使用される吹付材の具備すべき特性としては １）吹付施工時に添加水分１］が広いこと。The characteristics that the spray material used for these should have are: 1) Added moisture 1] during spraying construction should be wide.
２）スラリーのチクソトロピー性が大であり、離落はね
返りを少くすること。2) The slurry should have high thixotropy to reduce drop-off and rebound.
３）添加水分が少く緻密な耐火層を形成すること。3) Form a dense fireproof layer with little added moisture.
４）熱間強度が高いこと。4) High hot strength.
５）熱間での容積が安定であること。5) The volume should be stable in hot conditions.
６）耐スラグ浸透性、耐スラグ溶損性が高いこと。6) High slag penetration resistance and slag erosion resistance.
等があげられる。etc. can be mentioned.
従来のアルミナセメントや珪酸アルカリ塩又は燐酸アル
カリ塩を結合剤とした吹付材ではチクソトロピー性が不
十分であり接着率が７０〜８０係と低い欠点があった。Conventional spray materials using alumina cement, alkali silicate, or alkali phosphate as binders have the disadvantage of insufficient thixotropy and low adhesion rates of 70 to 80.
又アルミナセメントを用いる場合には接着させる為に１
０〜２０重量部も大量に添加せねばならず、しかも耐ス
ラグ溶損性に劣り、耐用性が期待できず、又珪酸アルカ
リ塩では熱間での容積が不安定であり、剥離損傷をおこ
し易く耐用面で不十分である欠点を有する。Also, when using alumina cement, add 1 for adhesion.
A large amount of 0 to 20 parts by weight must be added, and the slag corrosion resistance is poor, and durability cannot be expected.Also, with alkali silicate, the volume is unstable in hot conditions, causing peeling damage. It has the disadvantage of being easy to use and having insufficient durability.
しかもリン酸アルカリ塩はアルミナセメントや珪酸アル
カリ塩に比べ熱間での容積安定性や熱間強度の点ですぐ
れ、耐用も高いもののＰ２Ｏ５含有量が高い為製鋼に好
ましいとは言えない等の欠点がある。Moreover, alkaline phosphate salts are superior in terms of hot volume stability and hot strength compared to alumina cement and alkali silicate salts, and have a high durability, but they have drawbacks such as high P2O5 content, which makes them unsuitable for steelmaking. There is.
本発明者等は吹付材の結合剤の上述した種々の欠点に鑑
み、これらの欠点のない吹付材の結合剤を得るべく種々
研究実験を重ねた結果、（１）粒度調整した耐火骨材１
００重量部にｐＨ４〜８のリン酸アルミニウムのソーダ
中和品粉末を０．５〜４重量部を添加することにより、
それに成功し本発明を完成するに至ったのである。In view of the above-mentioned drawbacks of binders for sprayed materials, the present inventors conducted various research experiments in order to obtain binders for sprayed materials that do not have these drawbacks, and as a result, (1) refractory aggregate 1 with adjusted particle size.
By adding 0.5 to 4 parts by weight of soda-neutralized powder of aluminum phosphate having a pH of 4 to 8 to 00 parts by weight,
They were successful in this and completed the present invention.
本発明においては前記（１）の発明を更に改良し。In the present invention, the above invention (1) is further improved.
（２）粒度調整した耐火骨材１００重量部にｐＨ４〜８
のリン酸アルミニウムのソーダ中和布粉末を０．５〜４
重量部を添加したものに更に少量の可塑剤。(2) Add 100 parts by weight of particle size-adjusted fireproof aggregate to pH 4-8.
of aluminum phosphate soda neutralized cloth powder from 0.5 to 4
parts by weight plus a small amount of plasticizer.
硬化剤、珪酸アルカリ塩の１種または２種以上を添加し
一層効果を発揮したものである。The effect is further improved by adding one or more of a curing agent and an alkali silicate salt.
本発明の吹付材の特徴はｐＨ４〜８のリン酸アルミニウ
ムのソーダ中和布粉末を使用することによりチクソトロ
ピー性が大きくなり添加結合剤量が比較的少く添加水分
調整中が広く熱間容積安定性や強度、耐スラグ性が高く
なるものである。The characteristics of the spray material of the present invention are that by using soda neutralized cloth powder of aluminum phosphate with a pH of 4 to 8, thixotropy is increased, the amount of added binder is relatively small, and the amount of added water can be adjusted widely, and hot volume stability and It has high strength and slag resistance.
このリン酸アルミニウムのソーダ中和布は例えばオルト
リン酸アルミニウムまたは縮合リン酸アルミニウムの溶
液に有機酸たとえばクエン酸、酒石酸、シュウ酸等のナ
トリウム塩を添加中和することによって得られ、ここに
中和とはその固形分１重量係の水溶液のｐＨを４〜８に
調節することを意味し、かく中和した溶液はそのままで
も使用できるが、これを常法により加熱乾燥し粉末化し
たものを本発明ではｐＨ４〜８のリン酸アルミニウム中
和品粉末と称し、その化学組成的にはＮａ２０２２〜５
０重量係、 Ａ、４０３８．５〜１０．０重量係、Ｐ２
０゜３５〜４５重量係でかつ１重量多水溶液のｐＨが４
〜８の範囲内にあるものである。This soda-neutralized cloth of aluminum phosphate is obtained by neutralizing a solution of aluminum orthophosphate or condensed aluminum phosphate by adding an organic acid such as a sodium salt of citric acid, tartaric acid, or oxalic acid. means adjusting the pH of the aqueous solution per weight of solid content to 4 to 8. The neutralized solution can be used as it is, but the present invention is to heat and dry it to powder by a conventional method. It is called neutralized aluminum phosphate powder with a pH of 4 to 8, and its chemical composition is Na2022 to 5.
0 weight section, A, 4038.5~10.0 weight section, P2
0° 35-45 weight ratio and pH of 1 weight polyaqueous solution is 4
-8.
リン酸アルミニウムのソーダ中和布はｐＨが４以下であ
ると酸性が強く且つ潮解性が強い為、吹付材製品および
保管上問題がありまた。If the pH of aluminum phosphate soda neutralized cloth is less than 4, it will be highly acidic and deliquescent, causing problems in terms of spray material products and storage.
泥漿の硬化が速いため十分なチクソトロピー性が得られ
ない等欠点がある。There are drawbacks such as insufficient thixotropy due to rapid hardening of the slurry.
ｐＨが８以上になると適正なチクソトロピー性が得られ
ず、吹付中離落しやすくなり、かつ乾燥中に爆裂しやす
くなる。When the pH is higher than 8, proper thixotropy cannot be obtained, the composition tends to fall off during spraying, and is liable to explode during drying.
この為、リン酸アルミニウムのソーダ中和布はｐＨ４〜
８で前述した化学組成を有するものが望ましい。For this reason, aluminum phosphate soda neutralized cloth has a pH of 4~
It is desirable to have the chemical composition described above in Section 8.
吹付材の耐火骨材がドロマイト、マグネシア等の塩基性
骨材は、リン酸アルミニウムのソーダ中和布のｐＨが６
．５〜８の範囲であることが望ましい。The fireproof aggregate of the spray material is basic aggregate such as dolomite and magnesia, and the pH of the soda neutralized cloth of aluminum phosphate is 6.
．． A range of 5 to 8 is desirable.
ｐＨが６．５以下では酸、塩基反応による硬化が速すぎ
、′吹付時にノズル内で十分に水との混線が行えず、粉
塵が発生し、接着率が低下する。If the pH is below 6.5, curing due to acid and base reactions is too rapid, and sufficient crosstalk with water cannot occur in the nozzle during spraying, generating dust and lowering the adhesion rate.
本発明の吹付材に用いるリン酸アルミニウムのソーダ中
和布の添加量は、耐火骨材１００重量部に対し０．５〜
４重量部が好ましい。The amount of the aluminum phosphate soda neutralized cloth used in the spray material of the present invention is 0.5 to 100 parts by weight of the fireproof aggregate.
4 parts by weight is preferred.
０．５重量部以下ではチクソトロピー性が欠除し、接着
率が低下する。If the amount is less than 0.5 parts by weight, thixotropy will be lost and the adhesion rate will decrease.
４重量部の添加で十分にチクソトロピー性が発揮できる
為、これ以上の添加は不必要である。Since thixotropic properties can be sufficiently exhibited by adding 4 parts by weight, it is unnecessary to add more than this.
また、リン酸アルミニウムのソーダ中和布と珪酸アルカ
リ塩とを併用することによりリン酸アルミニウムのソー
ダ中和布は珪酸アルカリ塩の硬化剤の効果があり、従来
の珪フフ化ソーダや燐酸塩等より硬化特性のすぐれた吹
付材が得られる。In addition, by using aluminum phosphate soda neutralized cloth and an alkali silicate salt together, the aluminum phosphate soda neutralized cloth has the effect of a curing agent for the silicate alkali salt, and is harder than conventional silicate soda or phosphates. A spray material with excellent properties can be obtained.
珪酸アルカリ塩としては、１号珪酸ソーダ、２号珪酸ソ
ーダ、３号珪酸ソーダ、珪酸カリウム。Examples of the alkali silicate include No. 1 sodium silicate, No. 2 sodium silicate, No. 3 sodium silicate, and potassium silicate.
珪酸リチウム等の粉末が用いられる。Powder such as lithium silicate is used.
添加量は耐火骨材１００重量部に対し、珪酸アルカリ塩
が４重量部以下が望ましい。The amount of alkali silicate added is preferably 4 parts by weight or less per 100 parts by weight of the refractory aggregate.
吹付材の耐火骨材が中性、あるいは酸性骨材の場合リン
酸アルミニウムのソーダ中和布の硬化剤として、マグネ
シア、水酸化カルシウムを２重量部以下使用することが
でき、吹付時の保形性が向上する。If the fireproof aggregate of the spraying material is neutral or acidic, magnesia or calcium hydroxide can be used as a hardening agent for the soda neutralization cloth of aluminum phosphate, and up to 2 parts by weight can be used to improve shape retention during spraying. will improve.
また結合剤の補助として公知の水ヒ粘土、ベントナイト
等の可塑剤を５重量部以下添加することができる。Further, as an auxiliary binder, 5 parts by weight or less of a known plasticizer such as hydroxide clay or bentonite may be added.
本発明の吹付材は従来の燐酸塩系結合剤からなる吹付材
よりも低Ｐ２Ｏ５で、かつチクソトロピー性が大きく、
吹付時の接着性が高い。The spray material of the present invention has lower P2O5 and greater thixotropy than conventional spray materials made of phosphate binders,
High adhesion when spraying.
吹付施工後の熱間での容積が安定で、スラグに対する耐
溶損性、耐浸潤性にすぐれたものである。It has a stable volume when hot after spraying, and has excellent resistance to erosion and infiltration against slag.
本発明の吹付材は耐火骨材として塩基性や中性。The spray material of the present invention is basic or neutral as a fireproof aggregate.
酸性骨材を使用できるものであり、公知の乾式法の吹付
けによって補修施工するのみならず、新規施工にも利用
できるものである。Acidic aggregate can be used, and it can be used not only for repair work by spraying using the known dry method, but also for new construction.
次に、本発明の実施例を挙げて更に説明する。Next, the present invention will be further explained by giving examples.
実施例 １
８０を電気炉に従来より珪酸ソーダを結合剤としたドロ
マイト系吹付材を用いていたが、鋼１１当り１２Ｋｐを
使用していた。Example 1 A dolomite-based spray material using sodium silicate as a binder was conventionally used in an electric furnace for 80 mm, and 12 Kp was used per 11 mm of steel.
これに対し、転炉れんが屑５〜０．５７１ｇｌ１４０重
量部２合成ドロマイト３０重量部、マグネシアの−０，
５％を３０重量部、リン酸アルミニウム・ソーダ中和布
ｐＨ５，８を２重量部を８００−１２００℃のスラグラ
インおよび炉壁へ、水分１５−２０係で吹付けた断接着
率９０係で残存は４ｃｈ認められた。On the other hand, 5 to 0.571 g of converter brick waste, 140 parts by weight, 30 parts by weight of synthetic dolomite, -0 of magnesia,
30 parts by weight of aluminum phosphate/soda neutralizing cloth pH 5.8 were sprayed onto the slag line and furnace wall at 800-1200°C at a moisture content of 15-20 parts. 4ch was recognized.
従来のものに比べ、剥離損傷がきわめて少く、鋼１を当
り８Ｋｐの吹付材使用原単位となり、かつ従来の炉寿命
を維持できた。Compared to the conventional type, peeling damage was extremely small, the unit consumption of spray material was 8 Kp per 1 steel, and the life of the conventional furnace could be maintained.
実施例 ２
１８０を溶鋼取鍋（内張ジルコンれんが）にマグネシア
を骨材とした本発明品を用いた。Example 2 A product of the present invention using magnesia as an aggregate was used in a molten steel ladle (zircon brick lining) using 180.
５−０．５Ｍのマグネシア６０重量部、−Ｑ、５Ｍのマ
グネシア４０重量部にｐＨ７，５のリン酸アルミニウム
・ソーダ中和品１重量部、珪酸ソーダ３号粉末、２重量
部、水簸粘土３重量部を混合し、乾式吹付機により９−
１５％の水を添加しながら約５００−８００℃取鍋の下
部スラグラインから上部スラグラインまで吹付施工した
。5-60 parts by weight of 0.5M magnesia, -Q, 40 parts by weight of 5M magnesia, 1 part by weight of a neutralized product of aluminum phosphate and soda having a pH of 7.5, 2 parts by weight of sodium silicate powder, No. 3 powder, water elutriation clay 3 parts by weight were mixed and 9-
The spraying was carried out from the lower slag line to the upper slag line of the ladle at approximately 500-800°C while adding 15% water.
この結果、接着は非常に良好で、接着率９０−９５係、
耐用１２回を示した。As a result, the adhesion was very good, with an adhesion rate of 90-95.
It has a lifespan of 12 times.
従来のものは接着率が８０係、耐用５回であり、この結
果溶鋼取鍋のれんが原単位を溶鋼１を当り０、５ ＫＰ
低減できた。The conventional model has an adhesion rate of 80% and a service life of 5 times, resulting in a reduction in the brick consumption of the molten steel ladle to 0.5 KP per 1 molten steel.
We were able to reduce this.
実施例 ３
２４０を混銑車に５−０．５７＃２のボーキサイト６０
重量部、−Ｑ、５Ｍのボーキサイト４０重量部にｐＨ５
のリン酸アルミニウム・ソーダ中和品を４重量部、硬化
剤としてＣａ（ＯＨ）２を０．５重量部を混合した吹付
機材を常温にて５−１２％の添加水で施工した。Example 3 5-0.57 #2 bauxite 60 in 240 in a mixed iron car
Parts by weight, -Q, 40 parts by weight of 5M bauxite, pH 5
The spraying equipment was prepared by mixing 4 parts by weight of aluminum phosphate/soda neutralized product and 0.5 parts by weight of Ca(OH)2 as a hardening agent at room temperature with 5-12% added water.
接着率は９０％で良好であり、従来の混銑車の通銑量が
８％増加した。The adhesion rate was 90%, which was good, and the amount of pig iron passing through the conventional pig iron mixing vehicle was increased by 8%.
実施例 ４
５−０．５Ｍのシャモット、４０重量部とジルコンサン
ド２０重量部、−ｏ、５ｍのシャモットにｐＨ６，５の
リン酸アルミニウム・ソーダ中和品を３重量部にベント
ナイト３重量部とさらに−０，０７４％のマグネシアを
１重量部を混合し、５００−８００℃の高炉樋に吹付け
た結果、接着率９０係で強固に接着し、使用中にスポー
リングの発生や亀裂は見られず 滑らかに溶損された。Example 4 5-0.5M chamotte, 40 parts by weight, 20 parts by weight of zircon sand, -o, 5m chamotte, pH 6.5 aluminum phosphate/soda neutralized product, 3 parts by weight, bentonite, 3 parts by weight. Furthermore, 1 part by weight of -0,074% magnesia was mixed and sprayed onto the blast furnace gutter at 500-800°C, resulting in a strong bond with an adhesion rate of 90%, and no spalling or cracking was observed during use. It was melted away smoothly.
この結果、樋の炉材原単位を溶洗１を当り０．２Ｋｇ減
少できた。As a result, the basic unit of gutter furnace material could be reduced by 0.2 kg per melt wash.
本発明による上記４つの実施例により明らかな如くその
効果は極めて顕著であり、従来のものに比しはるかに優
れていることが明白である。As is clear from the above-mentioned four embodiments of the present invention, the effect is extremely remarkable and it is clear that it is far superior to the conventional ones.
Claims (1)
８の粉末のリン酸アルミニウムのソーダ中和品を０．５
〜４重量部を添加含有せしめたことを特徴とする吹付補
修材。 ２ 粒度を調整した耐火骨材１００重量部にｐＨが４〜
８の粉末のリン酸アルミニウムのソーダ中和品を０．５
〜４重量部および少量の可塑剤、硬化剤。 珪酸アルカリ塩の１種または２種以上を添加含有せしめ
たことを特徴とする吹付補修材。[Claims] 1. 100 parts by weight of refractory aggregate with adjusted particle size has a pH of 4 to 100 parts by weight.
8 powder aluminum phosphate neutralized with soda to 0.5
A spray repair material characterized by containing up to 4 parts by weight. 2. 100 parts by weight of refractory aggregate with adjusted particle size has a pH of 4~
8 powder aluminum phosphate neutralized with soda to 0.5
~4 parts by weight and small amounts of plasticizers and hardeners. A spray repair material characterized by containing one or more alkali silicate salts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53147818A JPS5818348B2 (en) | 1978-12-01 | 1978-12-01 | Spray repair material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53147818A JPS5818348B2 (en) | 1978-12-01 | 1978-12-01 | Spray repair material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5585477A JPS5585477A (en) | 1980-06-27 |
| JPS5818348B2 true JPS5818348B2 (en) | 1983-04-12 |
Family
ID=15438910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53147818A Expired JPS5818348B2 (en) | 1978-12-01 | 1978-12-01 | Spray repair material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5818348B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6241549U (en) * | 1985-08-28 | 1987-03-12 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5945968A (en) * | 1982-09-02 | 1984-03-15 | 旭硝子株式会社 | Manufacture of non-baked brick for electric furnace ceiling |
-
1978
- 1978-12-01 JP JP53147818A patent/JPS5818348B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6241549U (en) * | 1985-08-28 | 1987-03-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5585477A (en) | 1980-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH027911B2 (en) | ||
| US4683151A (en) | Method for application of refractory spray material | |
| JPS6128630B2 (en) | ||
| JPS5818348B2 (en) | Spray repair material | |
| JPS61106465A (en) | Refractory cement | |
| JPH0648846A (en) | Hot repairing spraying material for converter under less slag operation | |
| JPS5834423B2 (en) | Basic refractory composition | |
| JPS60235770A (en) | Refractory composition for spray | |
| JPH1017374A (en) | Monolithic refractory material for wet hot-gunning method | |
| US20120252653A1 (en) | Setting agent accelerator for refractory material | |
| JPS591234B2 (en) | Basic spray refractory composition | |
| JPS61266363A (en) | Spray refractories and spraying method | |
| SU571183A3 (en) | Refractory mortar for hot repair of refraction lining of metallurgical inctallations | |
| JPS58145660A (en) | Basic refractory composition | |
| JPH0735307B2 (en) | Spray repair material | |
| JPS61236657A (en) | Spray method for refractory spray material | |
| JPH10212169A (en) | Monolithic refractory for spraying | |
| JPH0648844A (en) | Hot repairing spraying material for converter under less slag operation | |
| JP2869881B2 (en) | Spray material for kiln repair | |
| JPS62148377A (en) | Quick-set spray refractory composition | |
| JPH0510300B2 (en) | ||
| JPH0469113B2 (en) | ||
| JPH0235706B2 (en) | ||
| JPS63156078A (en) | Spray mending material for metal refining furnace | |
| JPH0331996B2 (en) |