JP4603410B2 - セラミックス部材および高温反応炉 - Google Patents
セラミックス部材および高温反応炉 Download PDFInfo
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- JP4603410B2 JP4603410B2 JP2005125685A JP2005125685A JP4603410B2 JP 4603410 B2 JP4603410 B2 JP 4603410B2 JP 2005125685 A JP2005125685 A JP 2005125685A JP 2005125685 A JP2005125685 A JP 2005125685A JP 4603410 B2 JP4603410 B2 JP 4603410B2
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- 239000000919 ceramic Substances 0.000 title claims description 45
- 239000002245 particle Substances 0.000 claims description 27
- 229910052782 aluminium Inorganic materials 0.000 claims description 26
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 26
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 19
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 19
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 19
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 18
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims description 13
- 239000010419 fine particle Substances 0.000 claims description 9
- 239000006104 solid solution Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 4
- 239000002893 slag Substances 0.000 description 59
- 239000012071 phase Substances 0.000 description 31
- 238000005245 sintering Methods 0.000 description 27
- 238000002309 gasification Methods 0.000 description 17
- 238000006722 reduction reaction Methods 0.000 description 17
- 230000009467 reduction Effects 0.000 description 16
- 230000035939 shock Effects 0.000 description 15
- 239000003245 coal Substances 0.000 description 14
- 239000000843 powder Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 11
- 230000003628 erosive effect Effects 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- 229910001873 dinitrogen Inorganic materials 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 239000013078 crystal Substances 0.000 description 7
- 238000009413 insulation Methods 0.000 description 7
- 238000002844 melting Methods 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000002956 ash Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000010791 quenching Methods 0.000 description 4
- 230000000171 quenching effect Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- 239000000395 magnesium oxide Substances 0.000 description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011812 mixed powder Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000008213 purified water Substances 0.000 description 3
- 238000004904 shortening Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- VQCBHWLJZDBHOS-UHFFFAOYSA-N erbium(iii) oxide Chemical compound O=[Er]O[Er]=O VQCBHWLJZDBHOS-UHFFFAOYSA-N 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 2
- UZLYXNNZYFBAQO-UHFFFAOYSA-N oxygen(2-);ytterbium(3+) Chemical compound [O-2].[O-2].[O-2].[Yb+3].[Yb+3] UZLYXNNZYFBAQO-UHFFFAOYSA-N 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 description 1
- 229910018514 Al—O—N Inorganic materials 0.000 description 1
- 238000007088 Archimedes method Methods 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 101100371219 Pseudomonas putida (strain DOT-T1E) ttgE gene Proteins 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910021431 alpha silicon carbide Inorganic materials 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001784 detoxification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 150000002013 dioxins Chemical class 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- ZXGIFJXRQHZCGJ-UHFFFAOYSA-N erbium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Er+3].[Er+3] ZXGIFJXRQHZCGJ-UHFFFAOYSA-N 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 102000054765 polymorphisms of proteins Human genes 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- HYXGAEYDKFCVMU-UHFFFAOYSA-N scandium oxide Chemical compound O=[Sc]O[Sc]=O HYXGAEYDKFCVMU-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- 229910003454 ytterbium oxide Inorganic materials 0.000 description 1
- 229940075624 ytterbium oxide Drugs 0.000 description 1
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- Ceramic Products (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
市販の窒化珪素(Si3N4)粉末(α化率:97%以上、純度99.7%、平均粒径0.7μm)に、酸化イットリウム(Y2O3)粉末(平均粒径0.5μm)、酸化エルビウム(Er2O3)粉末(平均粒径0.8μm)、酸化イッテルビウム(Yb2O3)粉末(平均粒径0.7μm)、酸窒化アルミニウム粉末としてAl9O3N7、Al7O3N5、Al6O3N4のそれぞれの粉末(平均粒径0.4μm)、酸化マグネシウム(MgO)粉末(平均粒径0.2μm)を、表1に示す所定量(質量%)添加し、分散媒として精製水またはアセトンを用い、混合用ボールはφ5mmのSiCボールをセラミックス全粉末原料100gに対し2倍の200gの割合で用い、SiCタイルを内壁および蓋に内貼りしたボールミルで24〜48時間混練した。精製水またはアセトンの添加量は、セラミックス全粉末原料100gに対し120gとした。
比較例6〜7は、実施例1〜5と同一原料を用いるが、ポットの内壁や蓋もボールもSiC材を用いずSi3N4材を用い、同じく精製水またはアセトンで調製したが、焼結助剤に酸窒化アルミニウムを加えずに酸化マグネシウムを加えたことにより、異常粒成長により相対密度が97%を下回った場合(比較例6)、希土類酸化物を6質量%も加え、粒界層が著しく成長した場合(比較例7)の各比較例である。これらを併せて表1に示す。これら比較例の材料も実施例1〜5と合わせて、石炭ガス化炉のガス化反応炉2およびスラグ還元炉3の内壁材でのスラグ付着、および、損耗状況を比較した結果を示す。反応炉2、還元炉3の内壁への固定法は板材に穴あけ加工し、そこに皿ビスを差し込み炉体にネジ止めした。当該部位の曝される温度は1400〜1500℃であった。また、石炭ガス化炉内で1ヶ月間の試験を行った。
2.ガス化反応炉
3.スラグ還元炉(内壁にセラミックス貼付け)
4.スラグ排出口
5.スラグホール
6.合成ガス(石炭ガス)+チャー(未燃焼炭素と灰分とからなる微小粒子)
7.高温空気
8.高温チャー(未燃焼炭素と灰分とからなる微小粒子)
9.高温搬送ガス
10.石灰
11.火格子
21.高温ガス発生部
22.石灰ガス化部
31.輻射熱回収部
32.スラグ急冷部
41.セラミックス部材
51.スラグ(溶融スラグ)
Claims (5)
- 窒化珪素質(Si3N4)相、第二相、炭化珪素(SiC)粒子相、および不可避不純物からなるセラミックス部材であって、
前記第二相と前記SiC粒子相との合計が2質量%以下であり、
前記第二相は、0.5質量%以上1.3質量%以下の希土類酸化物と、0.5質量%以上1.3質量%以下の酸窒化アルミニウムポリタイプとが固溶したものであり、
前記酸窒化アルミニウムポリタイプは、Al 9 O 3 N 7 、Al 7 O 3 N 5 、及びAl 6 O 3 N 4 から選ばれる少なくとも1種であり、
前記第二相の形状のアスペクト比が5以上の割合が第二相において10%以下であり、かつ、
前記SiC粒子相は、0.2質量%以上0.4質量%以下で、平均粒径0.05μm以下の球状SiC微粒子である
ことを特徴としたセラミックス部材。 - 請求項1に記載のセラミックス部材であって、
前記第二相の形状は、短軸側の最大径が0.8μm以上の割合が第二相において30%以下である
ことを特徴としたセラミックス部材。 - 内壁面の少なくとも一部に、請求項1または請求項2に記載のセラミックス部材がライニングされた
ことを特徴とした高温反応炉。 - 請求項3に記載の高温反応炉であって、
前記セラミックス部材は、皿ねじまたは格子の少なくともいずれか一方によりライニングされた
ことを特徴とした高温反応炉。 - 請求項3または請求項4に記載の高温反応炉であって、
前記セラミックス部材は、1400℃以上の温度に曝される前記内壁面の部位にライニングされた
ことを特徴とした高温反応炉。
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JP2005125685A JP4603410B2 (ja) | 2005-04-22 | 2005-04-22 | セラミックス部材および高温反応炉 |
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JP2005125685A JP4603410B2 (ja) | 2005-04-22 | 2005-04-22 | セラミックス部材および高温反応炉 |
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JP2006298721A JP2006298721A (ja) | 2006-11-02 |
JP4603410B2 true JP4603410B2 (ja) | 2010-12-22 |
Family
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6374512U (ja) * | 1986-11-04 | 1988-05-18 | ||
JPH05294727A (ja) * | 1992-04-15 | 1993-11-09 | Nippon Steel Corp | 窒化珪素質焼結体の製造方法 |
JPH07144968A (ja) * | 1993-07-30 | 1995-06-06 | Eaton Corp | 窒化珪素をα相からβ相へ転化する方法及びそのための装置 |
JPH111375A (ja) * | 1997-06-13 | 1999-01-06 | Senshin Zairyo Riyou Gas Jienereeta Kenkyusho:Kk | 金属・炭素繊維複合摺動材 |
JP2001311474A (ja) * | 2000-04-28 | 2001-11-09 | Nippon Steel Corp | バタフライ弁及びその製造方法 |
JP2002020171A (ja) * | 2000-06-29 | 2002-01-23 | Nippon Steel Corp | バタフライ弁 |
JP2004059346A (ja) * | 2002-07-25 | 2004-02-26 | Nippon Steel Corp | 窒化珪素質セラミックス焼結体及びその製造方法 |
-
2005
- 2005-04-22 JP JP2005125685A patent/JP4603410B2/ja not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6374512U (ja) * | 1986-11-04 | 1988-05-18 | ||
JPH05294727A (ja) * | 1992-04-15 | 1993-11-09 | Nippon Steel Corp | 窒化珪素質焼結体の製造方法 |
JPH07144968A (ja) * | 1993-07-30 | 1995-06-06 | Eaton Corp | 窒化珪素をα相からβ相へ転化する方法及びそのための装置 |
JPH111375A (ja) * | 1997-06-13 | 1999-01-06 | Senshin Zairyo Riyou Gas Jienereeta Kenkyusho:Kk | 金属・炭素繊維複合摺動材 |
JP2001311474A (ja) * | 2000-04-28 | 2001-11-09 | Nippon Steel Corp | バタフライ弁及びその製造方法 |
JP2002020171A (ja) * | 2000-06-29 | 2002-01-23 | Nippon Steel Corp | バタフライ弁 |
JP2004059346A (ja) * | 2002-07-25 | 2004-02-26 | Nippon Steel Corp | 窒化珪素質セラミックス焼結体及びその製造方法 |
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