JP5019831B2 - セメントキルン燃焼ガス抽気ダストの処理方法 - Google Patents
セメントキルン燃焼ガス抽気ダストの処理方法 Download PDFInfo
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- JP5019831B2 JP5019831B2 JP2006256578A JP2006256578A JP5019831B2 JP 5019831 B2 JP5019831 B2 JP 5019831B2 JP 2006256578 A JP2006256578 A JP 2006256578A JP 2006256578 A JP2006256578 A JP 2006256578A JP 5019831 B2 JP5019831 B2 JP 5019831B2
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- dust
- combustion gas
- cement
- cement kiln
- selenium
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- 239000004568 cement Substances 0.000 title claims description 67
- 239000000428 dust Substances 0.000 title claims description 59
- 239000000567 combustion gas Substances 0.000 title claims description 24
- 238000000034 method Methods 0.000 title claims description 21
- 238000000605 extraction Methods 0.000 title description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 239000011669 selenium Substances 0.000 claims description 34
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims description 33
- 229910052711 selenium Inorganic materials 0.000 claims description 32
- 238000005188 flotation Methods 0.000 claims description 17
- 238000004065 wastewater treatment Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 15
- 239000002002 slurry Substances 0.000 claims description 15
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 7
- 229910052602 gypsum Inorganic materials 0.000 claims description 7
- 239000010440 gypsum Substances 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 6
- 229940056932 lead sulfide Drugs 0.000 claims description 4
- 229910052981 lead sulfide Inorganic materials 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 4
- 239000003814 drug Substances 0.000 claims description 2
- 229940079593 drug Drugs 0.000 claims 1
- 229910052801 chlorine Inorganic materials 0.000 description 41
- 239000000460 chlorine Substances 0.000 description 41
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 40
- 238000004090 dissolution Methods 0.000 description 18
- 239000000706 filtrate Substances 0.000 description 16
- 150000003839 salts Chemical class 0.000 description 15
- 229910001385 heavy metal Inorganic materials 0.000 description 13
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000000843 powder Substances 0.000 description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000002994 raw material Substances 0.000 description 10
- 239000002351 wastewater Substances 0.000 description 9
- 238000005406 washing Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 6
- 239000011575 calcium Substances 0.000 description 6
- 229910052791 calcium Inorganic materials 0.000 description 6
- 238000004070 electrodeposition Methods 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical group [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 6
- 239000001103 potassium chloride Substances 0.000 description 6
- 235000011164 potassium chloride Nutrition 0.000 description 6
- 238000001914 filtration Methods 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000000909 electrodialysis Methods 0.000 description 4
- -1 iron ion Chemical class 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 241000628997 Flos Species 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000013522 chelant Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 229910000027 potassium carbonate Inorganic materials 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- HYHCSLBZRBJJCH-UHFFFAOYSA-M sodium hydrosulfide Chemical compound [Na+].[SH-] HYHCSLBZRBJJCH-UHFFFAOYSA-M 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- WVYWICLMDOOCFB-UHFFFAOYSA-N 4-methyl-2-pentanol Chemical compound CC(C)CC(C)O WVYWICLMDOOCFB-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 239000011790 ferrous sulphate Substances 0.000 description 2
- 235000003891 ferrous sulphate Nutrition 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000003014 ion exchange membrane Substances 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 230000005587 bubbling Effects 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
- 150000001804 chlorine Chemical class 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- VDQVEACBQKUUSU-UHFFFAOYSA-M disodium;sulfanide Chemical compound [Na+].[Na+].[SH-] VDQVEACBQKUUSU-UHFFFAOYSA-M 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical group CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 1
- 229960002089 ferrous chloride Drugs 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- HWSZZLVAJGOAAY-UHFFFAOYSA-L lead(II) chloride Chemical compound Cl[Pb]Cl HWSZZLVAJGOAAY-UHFFFAOYSA-L 0.000 description 1
- XCAUINMIESBTBL-UHFFFAOYSA-N lead(ii) sulfide Chemical compound [Pb]=S XCAUINMIESBTBL-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Processing Of Solid Wastes (AREA)
- Removal Of Specific Substances (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
よって結晶化を行う。結晶装置47において、濃縮塩水中の溶質は結晶として析出し、遠
心分離機50を経て工業塩が回収され、工業原料として利用することができる。一方、結
晶装置47で蒸発した水分を、コンデンサ48において冷却してドレンを回収し、このド
レンを水洗工程に戻す。遠心分離機50によって分離されたろ液は、ろ液タンク49を経
て結晶装置47に戻す。尚、濃縮塩水から塩を回収せずに、放流することもできる。
あって、セメントキルン燃焼ガスの一部を抽気し、抽気した燃焼ガスに含まれるダストを集塵し、該集塵したダストを水に溶解させ、溶解液に硫酸と硫化剤とを含む薬剤を添加し、該薬剤を添加した溶解液から浮選により硫化鉛を回収し、該硫化鉛を回収した後のスラリーを固液分離することによって石膏及びセレンを含む固形分を得、該分離した固形分をセメント粉砕工程に添加することを特徴とする。
2 セメントキルン
3 プローブ
4 サイクロン
5 バグフィルタ
6 ダストタンク
7 溶解槽
8 浮選装置
9 ベルトフィルタ
10 排水処理装置
11 電析装置
12 晶析装置
21 セメント焼成装置
22 プレヒータ
23 セメントキルン
24 抽気ダスト処理システム水洗工程(溶解槽、浮選装置、ベルトフィルタ)
25 抽気ダスト処理システム排水工程(排水処理設備)
31 ボイラ
32 温水槽
33 溶解槽
34 ベルトフィルタ
35 貯槽
36 薬液反応槽
37 フィルタプレス
38 薬液反応槽
39 フィルタプレス
40 薬液反応槽
41 除鉄塔
42 キレート樹脂塔
43 ろ過装置
44 電気透析装置
45 ボイラ
46 加熱器
47 結晶装置
48 コンデンサ
49 ろ液タンク
50 遠心分離機
61 セメント焼成装置
62 プレヒータ
63 セメントキルン
64 抽気ダスト処理システム水洗工程(溶解槽、ベルトフィルタ)
65 抽気ダスト処理システム排水工程(排水処理設備)
Claims (2)
- セメントキルン燃焼ガスの一部を抽気し、抽気した燃焼ガスに含まれるダストを集塵し、
該集塵したダストを水に溶解させ、溶解液に硫酸と硫化剤とを含む薬剤を添加し、
該薬剤を添加した溶解液から浮選により硫化鉛を回収し、
該硫化鉛を回収した後のスラリーを固液分離することによって石膏及びセレンを含む固形分を得、
該分離した固形分をセメント粉砕工程に添加することを特徴とするセメントキルン燃焼ガス抽気ダストの処理方法。 - 前記スラリーの固液分離により分離した液状分を、排水処理により無害化することを特
徴とする請求項1に記載のセメントキルン燃焼ガス抽気ダストの処理方法。
Priority Applications (1)
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JP2006256578A JP5019831B2 (ja) | 2006-09-22 | 2006-09-22 | セメントキルン燃焼ガス抽気ダストの処理方法 |
Applications Claiming Priority (1)
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JP2006256578A JP5019831B2 (ja) | 2006-09-22 | 2006-09-22 | セメントキルン燃焼ガス抽気ダストの処理方法 |
Publications (2)
Publication Number | Publication Date |
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JP2008075139A JP2008075139A (ja) | 2008-04-03 |
JP5019831B2 true JP5019831B2 (ja) | 2012-09-05 |
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JP2006256578A Active JP5019831B2 (ja) | 2006-09-22 | 2006-09-22 | セメントキルン燃焼ガス抽気ダストの処理方法 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104671259A (zh) * | 2008-11-12 | 2015-06-03 | 太平洋水泥株式会社 | 工业盐、工业盐的制造装置及制造方法 |
JP5501694B2 (ja) * | 2009-08-19 | 2014-05-28 | 太平洋セメント株式会社 | 肥料並びにその製造方法及び製造装置 |
JP5864284B2 (ja) * | 2012-01-26 | 2016-02-17 | 太平洋セメント株式会社 | 塩素バイパスダスト水洗排水からのセレン除去方法 |
CN106166411B (zh) * | 2016-04-21 | 2019-01-15 | 浙江环立环保科技有限公司 | 一种水泥窑协同处置废液系统及其方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4140828B2 (ja) * | 2002-03-29 | 2008-08-27 | 太平洋セメント株式会社 | セメントキルン塩素・硫黄バイパス |
JP4299577B2 (ja) * | 2003-05-12 | 2009-07-22 | 太平洋セメント株式会社 | セメントキルン抽気ガス処理方法 |
JP4044068B2 (ja) * | 2004-04-19 | 2008-02-06 | 太平洋セメント株式会社 | 重金属類を含有する物質の処理方法 |
DK1795510T3 (da) * | 2004-09-29 | 2014-06-16 | Taiheiyo Cement Corp | System og fremgangsmåde til behandling af gasstøv udtaget fra cementovnsforbrændingsgas |
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