JPS60221373A - Corrosion preventing treatment for refractory heat-insulating lining material in heating furnace - Google Patents
Corrosion preventing treatment for refractory heat-insulating lining material in heating furnaceInfo
- Publication number
- JPS60221373A JPS60221373A JP7293984A JP7293984A JPS60221373A JP S60221373 A JPS60221373 A JP S60221373A JP 7293984 A JP7293984 A JP 7293984A JP 7293984 A JP7293984 A JP 7293984A JP S60221373 A JPS60221373 A JP S60221373A
- Authority
- JP
- Japan
- Prior art keywords
- lining material
- suspension
- ceramic fiber
- weight
- heating furnace
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims description 16
- 238000010438 heat treatment Methods 0.000 title description 16
- 238000005260 corrosion Methods 0.000 title description 6
- 230000007797 corrosion Effects 0.000 title description 5
- 239000000919 ceramic Substances 0.000 claims description 27
- 239000000835 fiber Substances 0.000 claims description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 22
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 18
- 239000000725 suspension Substances 0.000 claims description 16
- 239000000377 silicon dioxide Substances 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000005536 corrosion prevention Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 description 8
- 239000000446 fuel Substances 0.000 description 5
- 239000000295 fuel oil Substances 0.000 description 5
- 239000007832 Na2SO4 Substances 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Landscapes
- Aftertreatments Of Artificial And Natural Stones (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】
（発明の目的）
ｍ＝の利 ！
−ｎ）χＱ ＲＲ＋−） １： ｉ＋ｒｌ＋ ＊に 借
り ７二 ゛ノ市 ル ’３ｆｉ Ｚ ／７）１由 −
ｎルの化学プラントで用いられる加熱炉の耐火断熱ライ
ニング材に関する。詳しくは、加熱炉の内側に設けられ
るセラミックファイバー耐火断熱材であって、腐蝕成分
を多量に含む低質の燃料油に対しても充分な耐蝕性を有
するライニング材を提供することを目自勺とする。[Detailed description of the invention] (Object of the invention) Benefits of m=! -n) χQ RR+-) 1: i+rl+ * borrowed 72 ゛ no city le '3fi Z /7) 1 Yu -
This invention relates to a refractory and heat insulating lining material for heating furnaces used in chemical plants. Specifically, our goal is to provide a lining material that is a ceramic fiber refractory insulation material installed inside a heating furnace and has sufficient corrosion resistance even against low-quality fuel oil that contains a large amount of corrosive components. do.
【久立韮遺
セラミンクファイバー耐火断熱材は、従来用いられてい
たキャスタブル（耐火断熱コンクリ−１・）などと比較
して多くの優れた特性、即ち断熱性、耐熱性、耐酸性、
遮音性、軽量性なとを有し、比較的安価であることと相
まって、近年広く用いられて来ている。[Kutachi Niarai Ceramink Fiber Fireproof Insulating Material has many superior properties compared to conventionally used castable (fireproof insulating concrete - 1), such as heat insulation, heat resistance, acid resistance,
It has been widely used in recent years because it has sound insulation properties, light weight, and is relatively inexpensive.
セラミックファイバーの組成はその耐熱度（呼称最高使
用温度）によって異なり、石油精製、石油化学、一般化
学の分野に用いられる加熱炉の場合、熱面側に用いるも
のとしては耐熱度１２６０℃乃至１４００°Ｃのものが
よく用いられ、その主、な組成は、それぞれ
耐熱度 Ａｌ２Ｏ３５ｉＯ２
１２６０°０ ４６〜５０４９〜５３ 重量％１４００
°０ ５５〜６３３６〜４４ 重量％程度が一般的であ
り、Ａｌ２Ｏ３含有量が増すと耐熱度か高くなる傾向に
ある。The composition of ceramic fibers differs depending on their heat resistance (designated maximum operating temperature); in the case of heating furnaces used in the fields of oil refining, petrochemistry, and general chemistry, those used on the hot side have a heat resistance of 1260°C to 1400°C. C is often used, and its main composition is heat resistance Al2O35iO2 1260°0 46-5049-53 wt% 1400
°0 55-6336-44% by weight is common, and as the Al2O3 content increases, the heat resistance tends to increase.
市販されているセラミックファイバー成型品としては、
ブランケット、ボード、ウェットフェルトなどがあるか
、形状か自由に変えられ、かつ価格も安いブランケット
が最も広く用いられている。Commercially available ceramic fiber molded products include:
Blankets are the most widely used, as they are available in blankets, boards, wet felt, etc., can be freely changed in shape, and are inexpensive.
６日が ？しようと る間 へ
ところが、加熱炉に取りつけたブランケント状セラミ・
ツクファイバーが変質し、損傷して脱落するという予想
外の問題が発生した。特にＣ重油など低級の燃料を用い
た場合において著しい。The 6th? While I was trying to do this, I realized that the blank ceramic ceramic plate attached to the heating furnace.
An unexpected problem occurred in which the Tsuku fiber deteriorated, was damaged, and fell off. This is particularly noticeable when using low-grade fuel such as C heavy oil.
問題を究明してゆくと、燃料中に含まれる■２０５とＮ
ａ２ＳＯ４との混合物かその原因であることがわかって
来た。燃料中に含まれる■２０５−Ｎａ２５０４の量は
油の産地によって大きく異なり、Ｃ重油でも３０〜５０
ｐｐ’ｍ程度のものもあれば、１２００ｐｐｍも含まれ
ているものもある。As we investigated the problem, we discovered that ■205 and N contained in the fuel
It has been found that the cause is a mixture with a2SO4. ■The amount of 205-Na2504 contained in fuel varies greatly depending on the region of oil production, and even in C heavy oil it is 30 to 50.
Some contain about pp'm, while others contain as much as 1200 ppm.
この燃料油中（７）Ｖ２０ｓ−Ｎａ２３０４は燃焼ガス
によって運ばれ、セラミクツアイパーライニング材の表
面に灰として付着し、低い温度でも溶融してセラミック
ファイバーと反応してライ′ニング材を浸蝕するものと
考えられ、実験的にも証明される。(7) V20s-Na2304 in this fuel oil is carried by the combustion gas, adheres to the surface of the ceramic eyewear lining material as ash, melts even at low temperatures, reacts with the ceramic fibers, and corrodes the lining material. This is believed to be the case and has been experimentally proven.
このＶ２０ｓ−Ｎａ２３０４灰の影響は、ソノ構成比率
によっても差があるが、燃焼ガスにより常に供給され、
時間と共にセラミックファイバーライニングの対熱面に
堆積されて濃度が増加し浸蝕を促進させる。The influence of this V20s-Na2304 ash varies depending on the sono composition ratio, but it is always supplied by combustion gas,
Over time, it becomes deposited on the heat-receiving surface of the ceramic fiber lining and increases in concentration, promoting erosion.
従ってＶ２０ｓ−Ｎａ２３０４灰を多量に含む燃料を使
用する場合は、加熱炉のセラミンクファイバーライニン
グの浸蝕が大きな問題となる。Therefore, when using fuel containing a large amount of V20s-Na2304 ash, corrosion of the ceramic fiber lining of the heating furnace becomes a major problem.
（発明の構成）
用 ７０を るための−″
本発明は、この問題を解決するセラミックファイバー断
熱ライニング材の腐蝕防止処理法を提供するものである
。DESCRIPTION OF THE INVENTION The present invention provides a method for anti-corrosion treatment of ceramic fiber thermal insulation lining materials that solves this problem.
即ち本発明は、アルミナ４５〜６５重量％及びシリカ３
５〜５５重量％を含有するセラミンクファイバー成型品
よりなる断熱ライニング材の対熱面に、アルミナまたは
シリカの懸濁液を、含浸部の厚さが６ｍｍ以」−になる
ように含浸させ、且つ懸、濁液含浸部の乾燥後密度が０
．２５ｇ／ｃｍ’以上になるようにすることよりなる。That is, the present invention contains 45 to 65% by weight of alumina and 3% by weight of silica.
Impregnating the heat-receiving surface of a heat-insulating lining material made of a ceramic fiber molded product containing 5 to 55% by weight with an alumina or silica suspension so that the thickness of the impregnated part is 6 mm or more, In addition, the density of the suspension-impregnated part after drying is 0.
．． It consists of making sure that it is 25 g/cm' or more.
アルミナまたはシリカの懸、濁液の含浸処理は、セラミ
ンクファイバー＋％を火断熱ライニング材に浸漬、塗布
、吹付等の手段により行うことができる。The alumina or silica suspension or suspension impregnation treatment can be carried out by dipping, coating, spraying, or the like the ceramic fiber +% on the fire-insulating lining material.
ここに用いるアルミナまたはシリカの懸Ｊ蜀液は、アル
ミナまたはシリカの微粉末を水に１０〜２０爪酢％程度
含有させたものか好ましい。濃度が高すぎると微粉末が
内部に浸透せずに表面にのみ付着することになって剥離
を招くからである。The alumina or silica suspension solution used here is preferably one containing about 10 to 20% of alumina or silica fine powder in water. This is because if the concentration is too high, the fine powder will not penetrate into the interior and will only adhere to the surface, resulting in peeling.
また含浸処理を行う時期は、セラミックファイバー耐火
断熱ライニング材を加熱炉の熱面側に取りつけてからア
ルミナまたはシリカの懸濁液を吹き伺け、または塗布し
てもよいし、またセラミックファイバー耐火断熱ライニ
ング材に上記懸濁液をあらかしめ含浸させてから加熱炉
に取りつけてもよい。含浸部の厚さは６ｍｍ以上で、七
つ乾燥後密度が０．２５ｇ／ｃｍ３以上になるようにす
る。セラミックファイバーブランケットの本来の密度は
Ｏ，１６ｇ／ｃｍ３以下であるが、上記懸。The impregnation treatment can be carried out by attaching the ceramic fiber refractory insulation lining material to the hot side of the heating furnace and then spraying or coating the alumina or silica suspension. The lining material may be preheated and impregnated with the suspension before being attached to the heating furnace. The thickness of the impregnated part should be 6 mm or more, and the density after drying should be 0.25 g/cm3 or more. The original density of the ceramic fiber blanket is 0.16 g/cm3 or less, but the above-mentioned conditions apply.
ｌｆｌ液の含浸−乾燥を繰り返したり、あるいは全没後
乾燥の途中においてブランケットを一時圧縮することに
より密度を０．２５ｇ／ｃｍ”以上とする。The density is made to be 0.25 g/cm'' or more by repeating impregnation and drying of the lfl liquid, or by temporarily compressing the blanket during drying after complete immersion.
粗調
このような処理をすることにより、Ｖ２０Ｓ −Ｎａ２
ＳＯ４を多量に含む燃料を使用する場合でも、セラミン
クファイバー成型品よりなる断熱ライニング材の耐蝕性
を向」ニさせることができる。By performing such rough adjustment processing, V20S -Na2
Even when fuel containing a large amount of SO4 is used, the corrosion resistance of the heat insulating lining material made of ceramic fiber molded product can be improved.
佐幕丈溝
セラミックファイバー断熱ライニング材のテストピース
（２０ｍ ｍ Ｘ ３０ ｍ ｍ Ｘ ２５ ｍ ｍ厚
）の−にに、Ｖ２０５−Ｎａ２ＳＯ４（成分ｌ：、１．
９ ： １および５：５の２種類）の粉末をＯ，１ｇ蔽
在し、７００℃、８３０°Ｃ１及び９３０ °Ｃの各温
度で、それぞれ４８時間加熱する方式を用いた。A test piece (20 mm x 30 mm x 25 mm thick) of Sabaku Jogo ceramic fiber insulation lining material was treated with V205-Na2SO4 (component l:, 1.
A method was used in which 1 g of powders of 2 types (9:1 and 5:5) were surrounded by O, and heated at temperatures of 700°C, 830°C, and 930°C for 48 hours, respectively.
実施例１
耐熱度１２６０℃のセラミックファイバーブランケット
（Ａ １２０３ ・４７重量％、５ｉ０２ ：５２重績
％、′８：度： Ｏ、１３ｇ／ａｍ３）に、アルミナ微
粉末（コロイダルアルミナ）を２０％含有する懸濁液を
厚さ１０ｍｍ含浸し、圧縮して懸濁液含浸部の乾燥後密
度が０．３ｇ／ｃｍ３になるようにしたものをテストピ
ースとして、上記の試験を行った。４８時間後もテスト
ピースの表面に０．５〜１ｍｍ厚のスラグ層が生成し僅
かに浸蝕された程度であった。加熱温度及び■２０５−
Ｎａ２ＳＯ−４の成分比による明らかな差異は特に認め
られなかった。またこの状態は、２４０時間を経過して
も殆と変化がみられなかった。Example 1 Ceramic fiber blanket with heat resistance of 1260°C (A 1203 ・47% by weight, 5i02: 52% by weight, '8: degree: O, 13 g/am3) contains 20% alumina fine powder (colloidal alumina) The above test was conducted using a test piece impregnated with a suspension of 10 mm to a thickness of 10 mm and compressed so that the density of the suspension-impregnated part after drying was 0.3 g/cm3. Even after 48 hours, a slag layer with a thickness of 0.5 to 1 mm was formed on the surface of the test piece, which was only slightly corroded. Heating temperature and ■205-
No particular obvious difference was observed depending on the component ratio of Na2SO-4. Further, this condition showed almost no change even after 240 hours had elapsed.
実施例２
面４熱度１４００ °Ｃ！のセラミックファイバーブラ
ンケット （Ａ １２０３ ： ６０重量％、ＳｉＯ２
：３９重量％、密度：Ｏ，１３ｇ／ｃｍ３）に、アルミ
ナ微粉末（コロイダルアルミナ）を２０％含有する懸濁
液を厚さ７ ｍ ｍ含浸し、圧縮して懸濁液含浸部の乾
燥後密度が０．２５＋ｇ／ｃｍ３になるようにしたもの
をテストピースとして上記の試験を行った。４８時間後
もテストピースの表面に０．５〜１ｍｍ厚のスラグ層が
生成し僅かに浸蝕された程度であった。また加熱温度及
び■２０５−Ｎａ２ＳＯ４の成分比による差異は特に認
められなかった。Example 2 Surface 4 temperature 1400 °C! Ceramic fiber blanket (A 1203: 60% by weight, SiO2
:39% by weight, density: O, 13g/cm3) was impregnated with a suspension containing 20% of alumina fine powder (colloidal alumina) to a thickness of 7 mm, compressed, and the suspension-impregnated part was dried. The above test was conducted using a test piece whose density was 0.25+g/cm3. Even after 48 hours, a slag layer with a thickness of 0.5 to 1 mm was formed on the surface of the test piece, which was only slightly corroded. Further, no particular differences were observed depending on the heating temperature and the component ratio of 205-Na2SO4.
実施例３
耐熱度１２６０°Ｃのセラミックファイ／ヘーブランケ
ット（Ａ１２０３：４７重酸％、ＳｉＯ２：５２重量％
、密度：０．１３ｇ／ｃｍ３）に、アルミナ微粉末（コ
ロイダルアルミナ）を１０％含有する懸濁液を厚さ２５
ｍｍ含浸し、圧縮して懸濁液含浸部の乾燥後密度が０
、３５ ｇ ／ ｃ ｍ ３になるようにしたものをテ
ストピースとして上記の試験を行った。４８時間後もテ
ストピースの表面が僅かに浸蝕された程度で、０，３〜
０．８ｍｍ厚のスラグ層が生成していた。また加熱温度
及びＶ２０５−Ｎａ２ｓ０４の成分比による差異は特に
認められなかった。Example 3 Ceramic Phi/Heblanket with heat resistance of 1260°C (A1203: 47% heavy acid, SiO2: 52% by weight
, density: 0.13 g/cm3), and a suspension containing 10% alumina fine powder (colloidal alumina) to a thickness of 25
mm, and compressed so that the density of the suspension-impregnated part after drying is 0.
, 35 g/cm 3 was used as a test piece and the above test was conducted. Even after 48 hours, the surface of the test piece was slightly eroded, with a rating of 0.3~
A 0.8 mm thick slag layer was formed. Further, no particular differences were observed depending on the heating temperature and the component ratio of V205-Na2s04.
実施例４
面・１熱度１２６０°Ｃのセラミックファイバープラン
ケｙ ｌ・（Ａ Ｉ２０３ ： ４７重量％、５ｉｏ２
：５２重量％、密度＋０．１３ｇ／ｃｍ３）に、シワ
カナ微粉末を２０％含有する懸濁液を厚さ１０ｍｍ含浸
し、圧縮して懸濁液含浸部の乾燥後密度が０．３ｇ／ｃ
ｍ３になるようにしたものをテストピースとして上記の
試験を行った。４８時間後もテス［・ピースの表面に０
．５〜１ｍｍ厚のスラグ層か生成し僅かに浸蝕された程
度であった。加熱温度及びＶ２０ｓ−Ｎａ２３０４の成
分比による明らかな差異は特に認められなかった。また
この状態は、２４０時間を経過しても殆ど変化がみられ
なかった。Example 4 Surface・1 Ceramic fiber plankyl・(A I203: 47% by weight, 5io2
: 52% by weight, density + 0.13g/cm3) was impregnated with a suspension containing 20% of Shiwakana fine powder to a thickness of 10mm, and compressed to give a density of 0.3g/cm after drying of the suspension-impregnated part.
The above test was conducted using a test piece that was made to have a diameter of m3. Even after 48 hours, there is no trace on the surface of the piece.
．． A slag layer with a thickness of 5 to 1 mm was formed and was only slightly eroded. No obvious differences were observed depending on the heating temperature and the component ratio of V20s-Na2304. Further, this condition showed almost no change even after 240 hours had elapsed.
比較例１
耐熱度１２６０ ’Ｃのセラミンクファイバーブラフ’
ｙ ッｌ□ （Ａ ｌ ２０３ ＋ ４７重量％、５ｉ
ｏ２ ：５２重酸％、密度： Ｏ、ｌ ３’ｇ／ｃｍ３
）を、そのままテストピースとして上記の試験を行った
。Comparative Example 1 Ceramic fiber bluff with heat resistance of 1260'C
y tl□ (A l 203 + 47% by weight, 5i
o2: 52% heavy acid, density: O, l 3'g/cm3
) was used as a test piece for the above test.
４８時間後、テストピースの表面には激しく反応した浸
蝕か認められ、中心部は４〜５ｍｍ陥没していた。加熱
温度およびＶ２０５−Ｎａ２ＳＯ４の成分比による差異
は特に認められなかった。After 48 hours, severe erosion was observed on the surface of the test piece, and the center had sunk by 4 to 5 mm. No particular differences were observed depending on the heating temperature and the component ratio of V205-Na2SO4.
比較例・２
耐熱度１４０００Ｃのセラミックファイバーブランケン
ト（Ａ １２０３ ： ６０重量％、ＳｉＯ２：３９重
量％、密度＋ ０．１３ｇ／ｃｍ３）を、そのままテス
トピースとして」−記の試験を行った。Comparative Example 2 A ceramic fiber blank with a heat resistance of 14000C (A 1203: 60% by weight, SiO2: 39% by weight, density +0.13g/cm3) was used as a test piece for the test described in "-".
４８時間後、テストピースの表面には激しく反応した浸
蝕が認められ、中心部は３〜４ｍｍ陥没していた。加熱
温度およびＶ２０５−Ｎａ２ＳＯ４の成分比による差異
は特に認められなかった。After 48 hours, severe erosion was observed on the surface of the test piece, and the center had sunk by 3 to 4 mm. No particular differences were observed depending on the heating temperature and the component ratio of V205-Na2SO4.
比較例３
耐熱度１２６０°Ｃのセラミンクファイバーブランケッ
ト （Ａ Ｉ２０３ ： ４７重量％、５ＩＯ２・５２
重量％、密度：０．１３ｇ／ｃｍ３）に、アルミナｌｆ
ｉ粉末（コロイダルアルミナ）＠２０％含有する懸濁液
を厚さ３ｍｍ含浸し、ａ濁液含浸ｉ？Ｂの乾燥後密度か
０．２ｇ／ｃｍ３になるようにしたものをテストピース
として上記の試験を行った。Comparative Example 3 Ceramic fiber blanket with heat resistance of 1260°C (AI203: 47% by weight, 5IO2.52
weight%, density: 0.13 g/cm3), alumina lf
i Impregnated with a suspension containing powder (colloidal alumina) @20% to a thickness of 3 mm, a suspension impregnated i? The above test was conducted using B as a test piece whose density after drying was 0.2 g/cm3.
４８時間後、テストピースの表面には激しく反応した浸
蝕が認められ、中心部は２〜３ｒｒｒｍ陥没していた。After 48 hours, severe erosion was observed on the surface of the test piece, and the center had sunk by 2 to 3 rrrm.
加熱温度ならびにＶ２０Ｓ−Ｎａ２３０４の成分比によ
る差異は特に認められなかった。No particular differences were observed depending on the heating temperature or the component ratio of V20S-Na2304.
（発明の効果）
上記各実施例から明らかなように、本発明の腐蝕防止処
理法を実施することにより、加熱炉に使用したセラミッ
クファイバー成型品よりなる耐火断熱ライニング材が燃
料油に含有されているＶ２Ｏ５−Ｎａｚ ３０４により
腐蝕されるのを効果的に防止することができる。(Effects of the Invention) As is clear from the above examples, by implementing the corrosion prevention treatment method of the present invention, the refractory heat insulating lining material made of ceramic fiber molded product used in the heating furnace is contained in the fuel oil. Corrosion caused by V2O5-Naz 304 can be effectively prevented.
出願人 日 揮 株 式 会 社 代理人 弁理士 青 麻 昌 二Applicant: JGC Corporation Agent Patent Attorney Shoji Ao Asa
Claims (1)
量％を含有するセラミックファイバー成型品よりなる断
熱ライニング材の対熱面に、アルミナまたはシリカの懸
、濁液を、含浸部の厚さが６ｍｍ以」二になるように含
浸させ、且つ懸濁液含浸部の乾燥後密度が０．２５ｇ／
ｃｍ３以上１こなるようにすることよりなる断熱ライニ
ング材の腐蝕防止処理法。 ２ セラミックファイバー成型品がセラミックファイバ
ーブランケットである特許請求の範囲第１項記載の方法
。[Claims] 1. A suspension or suspension of alumina or silica is impregnated on the heat-receiving surface of a heat-insulating lining material made of a ceramic fiber molded product containing 45-65% by weight of alumina and 35-55% by weight of silica. The suspension is impregnated so that the thickness of the suspension part is 6mm or more, and the density of the suspension-impregnated part after drying is 0.25g/2.
A corrosion prevention treatment method for a heat insulating lining material, which comprises making the thickness of the insulation lining material 1cm3 or more. 2. The method according to claim 1, wherein the ceramic fiber molded product is a ceramic fiber blanket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7293984A JPS60221373A (en) | 1984-04-13 | 1984-04-13 | Corrosion preventing treatment for refractory heat-insulating lining material in heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7293984A JPS60221373A (en) | 1984-04-13 | 1984-04-13 | Corrosion preventing treatment for refractory heat-insulating lining material in heating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60221373A true JPS60221373A (en) | 1985-11-06 |
| JPH0148238B2 JPH0148238B2 (en) | 1989-10-18 |
Family
ID=13503836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7293984A Granted JPS60221373A (en) | 1984-04-13 | 1984-04-13 | Corrosion preventing treatment for refractory heat-insulating lining material in heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60221373A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03177377A (en) * | 1989-12-04 | 1991-08-01 | Shinagawa Refract Co Ltd | Sio2-impregnated brick for ceramic burner in hot blast stove |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5221008A (en) * | 1976-07-26 | 1977-02-17 | Toshiba Ceramics Co | Manufacture of ceramic fiber coated oneebody structure refractories |
| JPS577877A (en) * | 1980-06-17 | 1982-01-16 | Nippon Asbestos Co Ltd | Paste-like fibrous indefinite-form refractories |
| JPS5760319A (en) * | 1980-09-29 | 1982-04-12 | Olympus Optical Co Ltd | Film counting device for camera |
| JPS589079A (en) * | 1981-06-22 | 1983-01-19 | グラマン・エアロスベ−ス・コ−ポレイシヨン | Device and method for detecting condition of trouble in cable |
| JPS5860683A (en) * | 1981-09-30 | 1983-04-11 | イソライト・バブコツク耐火株式会社 | Improvement of ceramic fiber formed article |
-
1984
- 1984-04-13 JP JP7293984A patent/JPS60221373A/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5221008A (en) * | 1976-07-26 | 1977-02-17 | Toshiba Ceramics Co | Manufacture of ceramic fiber coated oneebody structure refractories |
| JPS577877A (en) * | 1980-06-17 | 1982-01-16 | Nippon Asbestos Co Ltd | Paste-like fibrous indefinite-form refractories |
| JPS5760319A (en) * | 1980-09-29 | 1982-04-12 | Olympus Optical Co Ltd | Film counting device for camera |
| JPS589079A (en) * | 1981-06-22 | 1983-01-19 | グラマン・エアロスベ−ス・コ−ポレイシヨン | Device and method for detecting condition of trouble in cable |
| JPS5860683A (en) * | 1981-09-30 | 1983-04-11 | イソライト・バブコツク耐火株式会社 | Improvement of ceramic fiber formed article |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03177377A (en) * | 1989-12-04 | 1991-08-01 | Shinagawa Refract Co Ltd | Sio2-impregnated brick for ceramic burner in hot blast stove |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0148238B2 (en) | 1989-10-18 |
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