JP5682607B2 - セメント系固化材 - Google Patents
セメント系固化材 Download PDFInfo
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- JP5682607B2 JP5682607B2 JP2012220422A JP2012220422A JP5682607B2 JP 5682607 B2 JP5682607 B2 JP 5682607B2 JP 2012220422 A JP2012220422 A JP 2012220422A JP 2012220422 A JP2012220422 A JP 2012220422A JP 5682607 B2 JP5682607 B2 JP 5682607B2
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- cement
- selenium
- extraction
- clinker
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- 239000004568 cement Substances 0.000 title claims description 116
- 239000000463 material Substances 0.000 title claims description 40
- 239000011669 selenium Substances 0.000 claims description 105
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims description 104
- 229910052711 selenium Inorganic materials 0.000 claims description 104
- 239000000428 dust Substances 0.000 claims description 49
- 229910052602 gypsum Inorganic materials 0.000 claims description 13
- 239000010440 gypsum Substances 0.000 claims description 13
- 238000007711 solidification Methods 0.000 claims description 11
- 230000008023 solidification Effects 0.000 claims description 11
- 239000002893 slag Substances 0.000 claims description 9
- 239000007789 gas Substances 0.000 description 78
- 238000000605 extraction Methods 0.000 description 68
- 239000002689 soil Substances 0.000 description 32
- 239000002994 raw material Substances 0.000 description 23
- 239000000203 mixture Substances 0.000 description 19
- 238000010828 elution Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 15
- 229910001385 heavy metal Inorganic materials 0.000 description 13
- 238000001816 cooling Methods 0.000 description 12
- 238000010304 firing Methods 0.000 description 12
- 239000000725 suspension Substances 0.000 description 11
- 239000011398 Portland cement Substances 0.000 description 10
- 238000001354 calcination Methods 0.000 description 9
- 239000000446 fuel Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000000460 chlorine Substances 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 238000003860 storage Methods 0.000 description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 6
- 230000000630 rising effect Effects 0.000 description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 5
- 229910052793 cadmium Inorganic materials 0.000 description 5
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 4
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 4
- 239000004567 concrete Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 235000010755 mineral Nutrition 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- 239000011733 molybdenum Substances 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 239000000292 calcium oxide Substances 0.000 description 3
- 235000012255 calcium oxide Nutrition 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 3
- 239000011133 lead Substances 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000009614 chemical analysis method Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229940065287 selenium compound Drugs 0.000 description 2
- 150000003343 selenium compounds Chemical class 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241000451318 Cryptacrus comes Species 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000004931 aggregating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011400 blast furnace cement Substances 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 150000004683 dihydrates Chemical class 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 235000012245 magnesium oxide Nutrition 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
この低セレン含有クリンカーにより、これを用いたセメント組成物、混合セメント及びセメント系固化材(一般軟弱土、高有機質土、特殊土用固化材(六価クロム対策用)を含む)、及び固化処理土からは、セレンの溶出量を大幅に低減することができる。特に、セレンの溶出量はほぼ全ての土質において土壌汚染の環境基準(0.01mg/L)以下を実現することができる。また、クリンカー中のセレン含有量は、より低い方が好ましいが、抽気率上昇による燃費悪化を考慮すると、0.05mg/kg以上、好ましくは0.2mg/kg以上、特に好ましくは0.6mg/kg以上とするのが、工業的及び生産コストの点で、より好ましい。
C3S量(質量%)=4.07×CaO(質量%)−7.60×SiO2(質量%)−6.72×Al2O3(質量%)−1.43×Fe2O3(質量%)−2.85×SO3(質量%) (1)
C2S量(質量%)=2.87×SiO2(質量%)−0.754×C3S(質量%) (2)
C3A量(質量%)=2.65×Al2O3(質量%)−1.69×Fe2O3(質量%) (3)
C4AF量=3.04×Fe2O3(質量%) (4)
抽気ダストを添加せず、セメントクリンカーと石膏、更に内割でスラグを42質量%添加した試製セメントのセレン含有量とセメント粉体からのセレン溶出量とを表1に、JIS R 5201:1997「セメントの物理試験方法」に準拠して測定したブレーン比表面積も表1に示す。また、セメントB3、B5の主要な化学成分を表2に示す。また、高炉スラグの化学成分およびブレーン比表面積を表3、抽気ダストの化学成分を表4に示す。表2のig.loss〜f.CaOはJIS M 8853:1998「セラミック用アルミノけい酸塩質原料」、ClはJIS R 5202「セメントの化学分析方法」に準拠して測定した。
試製したセメントB3及びB4に、抽気ダストD1及びD2をそれぞれ添加若しくは添加せずに調整したセメント系固化材(No.1〜16)と、B5に無水石膏を添加して調整したセメント系固化材(No.17)を使用して関東ロームを処理した固化処理土からのセレン溶出量を表5及び図3に示す。
1a:焼成用バーナー
2 :クリンカークーラー
2a:クリンカークーラーの冷却ファン
3 :キルン入口フッド
3a:排ガス抽気口
4 :ライジングダクト
5 :SP(サスペンションプレヒーター)
5a:最下段サイクロン
5b:仮焼炉
5c:生原料供給管
5e:最上段サイクロン
5f:サイクロン接合ダクト
5g:最上段サイクロン出口
6 :排気ファン
7 :シュート
8 :クーラー排ガス供給ダクト
10:抽気ガス設備
11:排ガス抽気管
11a:冷却ファン
12:塊状物除去装置
13a、13b、13c:排ガスダクト
14:冷風取入管
15:バッグフィルタ(集塵機)
15a:バッグフィルタ下部ホッパ
15b:ダスト排出用スクリュコンベヤ
16:排気(誘引)ファン
20:ダスト貯蔵・払出設備
21:クッションホッパ
22:バタフライダンパ
23:ダスト搬出車
30:仕上ミル設備
31:ボールミル
32:分級器
33:ダスト貯蔵受入ホッパ
Claims (4)
- セレン含有量が0.05〜1.4mg/kg、ボーグ式算定のC3S量が50〜65質量%であるセメントクリンカーと、石膏と、高炉スラグを42〜60質量%と、セメントキルンからのセレン含有排ガスから回収したセレンを1190〜5000mg/kg含有する抽気ダストを0.059〜5.5質量%含み、かつ、セメント系固化材中のセレン含有量が1.5〜5.0mg/kgであるセメント系固化材。
- 前記セメントクリンカー中のセレン含有量が0.2〜1.4mg/kgである請求項1項記載のセメント系固化材。
- 前記抽気ダストを0.059〜0.34質量%含む、請求項1又は2記載のセメント系固化材。
- 前記セメント系固化材中のセレン含有量が2.0〜5.0mg/kgである、請求項1〜3のいずれか1項記載のセメント系固化材。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2012220422A JP5682607B2 (ja) | 2012-10-02 | 2012-10-02 | セメント系固化材 |
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Application Number | Priority Date | Filing Date | Title |
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JP2012220422A JP5682607B2 (ja) | 2012-10-02 | 2012-10-02 | セメント系固化材 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007008094A Division JP5368675B2 (ja) | 2007-01-17 | 2007-01-17 | セメント系固化材の製造方法 |
Publications (2)
Publication Number | Publication Date |
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JP2012254935A JP2012254935A (ja) | 2012-12-27 |
JP5682607B2 true JP5682607B2 (ja) | 2015-03-11 |
Family
ID=47526879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2012220422A Active JP5682607B2 (ja) | 2012-10-02 | 2012-10-02 | セメント系固化材 |
Country Status (1)
Country | Link |
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JP (1) | JP5682607B2 (ja) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3695728B2 (ja) * | 1997-02-06 | 2005-09-14 | 太平洋セメント株式会社 | セメント組成物およびその製造方法 |
JP4583065B2 (ja) * | 2004-04-30 | 2010-11-17 | 太平洋セメント株式会社 | 工業的に有用な無機材料の回収方法 |
JP4585328B2 (ja) * | 2005-02-08 | 2010-11-24 | 三菱マテリアル株式会社 | 固化材組成物 |
JP5225541B2 (ja) * | 2005-03-17 | 2013-07-03 | 宇部興産株式会社 | セメントクリンカ及びセメントの製造方法とその装置 |
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2012
- 2012-10-02 JP JP2012220422A patent/JP5682607B2/ja active Active
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