EP0039305B1 - Verfahren zur Verringerung der Schadstoffemission beim Sintern - Google Patents
Verfahren zur Verringerung der Schadstoffemission beim Sintern Download PDFInfo
- Publication number
- EP0039305B1 EP0039305B1 EP19810730006 EP81730006A EP0039305B1 EP 0039305 B1 EP0039305 B1 EP 0039305B1 EP 19810730006 EP19810730006 EP 19810730006 EP 81730006 A EP81730006 A EP 81730006A EP 0039305 B1 EP0039305 B1 EP 0039305B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- materials
- sinter
- treatment layer
- sintering
- blast 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.)
- Expired
Links
- 238000005245 sintering Methods 0.000 title claims description 34
- 238000000034 method Methods 0.000 title claims description 33
- 239000003546 flue gas Substances 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 16
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 12
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 9
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 9
- 239000004571 lime Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 239000002893 slag Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000008188 pellet Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 3
- 238000007792 addition Methods 0.000 claims description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims 2
- 239000000725 suspension Substances 0.000 claims 2
- 239000012670 alkaline solution Substances 0.000 claims 1
- 239000000440 bentonite Substances 0.000 claims 1
- 229910000278 bentonite Inorganic materials 0.000 claims 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims 1
- 239000011230 binding agent Substances 0.000 claims 1
- 239000008187 granular material Substances 0.000 claims 1
- -1 lump ore Substances 0.000 claims 1
- 229910000027 potassium carbonate Inorganic materials 0.000 claims 1
- 238000012216 screening Methods 0.000 claims 1
- 239000000243 solution Substances 0.000 claims 1
- 238000006477 desulfuration reaction Methods 0.000 description 25
- 230000023556 desulfurization Effects 0.000 description 25
- 239000010410 layer Substances 0.000 description 23
- 239000007789 gas Substances 0.000 description 18
- 230000008569 process Effects 0.000 description 17
- 229910052717 sulfur Inorganic materials 0.000 description 17
- 239000011593 sulfur Substances 0.000 description 17
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 15
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 9
- 239000003344 environmental pollutant Substances 0.000 description 7
- 231100000719 pollutant Toxicity 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 239000002585 base Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 235000019738 Limestone Nutrition 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000006028 limestone Substances 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000004449 solid propellant Substances 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000008267 milk Substances 0.000 description 3
- 210000004080 milk Anatomy 0.000 description 3
- 235000013336 milk Nutrition 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 102000005298 Iron-Sulfur Proteins Human genes 0.000 description 1
- 108010081409 Iron-Sulfur Proteins Proteins 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000002023 somite Anatomy 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
- C22B1/20—Sintering; Agglomerating in sintering machines with movable grates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
- F27B21/06—Endless-strand sintering machines
Definitions
- the invention relates to a method for reducing the emission of gaseous pollutants in the flue gas from sintering plants.
- Sinter plants are one of the most important SO 2 emitters after coal-fired power plants and chemical plants. To a lesser extent, gaseous fluorine and chlorine compounds are also emitted. Sintering plants are therefore increasingly confronted with requirements to limit pollutant emissions, especially SO 2 emissions.
- the SO 2 emissions per unit of time can sometimes be limited by limiting the specific sintering output per m 2 of suction surface and day or by the targeted purchase of low-sulfur fuels and ores;
- the invention it is surprisingly possible to move the desulfurization process onto the sintered belt itself.
- the normal rust coating which is usually applied in a thickness of 2 to 3 cm to the grate bars of the sintering belt and which is to protect the bars from thermal overload and to prevent the fine mixture components from trickling through, or in addition to the normal grate sheet, lumpy, already oven-compatible filling materials ( Pellets, lump ores, LD slag, blast furnace slag, finished sinter - also referred to as a treatment layer -) layered on the sinter grate in a much greater layer thickness.
- the layer thickness of such extraneous rust coverings can be freely selected within the limits set by the maximum grate height and the layer thickness of the sintering mixture that is normally used in operation. With a grate car height of 50 cm and operation of the system with a 40 cm layer height (including the usual grate covering) there are z. B. up to 13 cm available. This extraneous rust coating is soaked or sprayed with water or - to achieve greater effects - with a basic slurry or liquid before loading onto the grate wagon. Lime milk is preferably used as the basic slurry.
- menera ore (Fe content 50.5%) was moistened with tap water in a second series of tests before filling the actual sinter mixture onto the normal 2.5 cm 5 cm grate surface.
- the amount of S0 2 measured in the exhaust gas was 1 220 g / t sinter, so that a degree of desulfurization of 15.3% is calculated.
- the presence of the rust coating layer which absorbs the pollutants immediately below the fresh mixture to be sintered has not significantly influenced the sintering process. Because of the coarse-grained structure of the treatment layer, the proportion of pressure loss caused by it is low, so that even with a rust covering thickness of 15 cm and a constant vacuum, only power losses of 2.5% were measured. In large systems, this effect is automatically compensated for by maintaining the delivery rate.
- the method according to the invention is therefore able to achieve a significant desulfurization of the sintered fumes by utilizing the reserve that is usually present in the sintering grate height without significant modifications and at low cost. If the emission values are not reduced, more sulfur-rich raw materials can be used or performance increases can be achieved with higher fuel consumption. There are no negative influences on the sintering process.
- the aim was to finally bind the sulfur to be separated from the flue gases in the blast furnace slag, the capacity of which is far from being reached for sulfur and in which the sulfur compounds are not deposited on the surface but embedded in a matrix of silicate phase and are therefore difficult to leach.
- a top guide of 25% of the SO 2 emission of 1.85 kg / t sinter mentioned at the beginning would increase the sulfur input into the blast furnace by a maximum of 3 to 4%.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19803016496 DE3016496C2 (de) | 1980-04-25 | 1980-04-25 | Verfahren zur Verringerung der Schadstoffemission beim Sintern |
| DE3016496 | 1980-04-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0039305A1 EP0039305A1 (de) | 1981-11-04 |
| EP0039305B1 true EP0039305B1 (de) | 1985-06-05 |
Family
ID=6101244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19810730006 Expired EP0039305B1 (de) | 1980-04-25 | 1981-01-13 | Verfahren zur Verringerung der Schadstoffemission beim Sintern |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0039305B1 (enrdf_load_stackoverflow) |
| JP (1) | JPS56169732A (enrdf_load_stackoverflow) |
| AU (1) | AU539417B2 (enrdf_load_stackoverflow) |
| DE (1) | DE3016496C2 (enrdf_load_stackoverflow) |
| PL (1) | PL230099A1 (enrdf_load_stackoverflow) |
| SU (1) | SU1156603A3 (enrdf_load_stackoverflow) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2526044B1 (fr) * | 1982-05-03 | 1989-11-24 | Siderurgie Fse Inst Rech | Procede d'agglomeration de minerai et installation pour sa mise en oeuvre |
| DE3843929A1 (de) * | 1988-12-24 | 1990-07-05 | Metallgesellschaft Ag | Verfahren zur verringerung der emission von sox im abgas von sinteranlagen |
| AT393095B (de) * | 1989-10-06 | 1991-08-12 | Voest Alpine Stahl Donawitz | Verfahren zum verringern der schwefelemission bei sinterprozessen |
| AT395828B (de) * | 1991-06-28 | 1993-03-25 | Voest Alpine Stahl Donawitz | Verfahren zur verringerung von schadstoffemissionen bei sinterprozessen |
| DE4411505C1 (de) * | 1994-03-31 | 1995-08-24 | Steag Ag | Verfahren und Anordnung zum Sintern metalloxidhaltiger Werkstoffe |
| DE4431939C1 (de) * | 1994-09-08 | 1996-01-18 | Steag Ag | Verfahren und Anordnung zur Wärmebehandlung von schüttfähigem Behandlungsgut |
| WO1999005329A1 (de) * | 1997-07-24 | 1999-02-04 | Siemens Aktiengesellschaft | Verfahren zum betrieb einer sinteranlage sowie sinteranlage |
| JP5423611B2 (ja) * | 2010-08-09 | 2014-02-19 | 新日鐵住金株式会社 | 焼結鉱の製造方法 |
| RU2506323C1 (ru) * | 2012-09-27 | 2014-02-10 | Анатолий Алексеевич Панычев | Способ агломерации железорудных материалов |
| RU2506324C1 (ru) * | 2012-12-11 | 2014-02-10 | Анатолий Алексеевич Панычев | Способ агломерации железорудных материалов |
| RU2534174C1 (ru) * | 2013-07-08 | 2014-11-27 | Анатолий Алексеевич Панычев | Способ агломерации железорудных материалов |
| RU2550445C1 (ru) * | 2014-02-04 | 2015-05-10 | Анатолий Алексеевич Панычев | Способ агломерации железорудных материалов |
| CN114854983B (zh) * | 2022-06-08 | 2023-05-30 | 中南大学 | 一种基于超高料层烧结过程燃料高效燃烧的烧结碳减排方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE874777C (de) * | 1941-05-24 | 1953-04-27 | Eisenwerke Gelsenkirchen Ag | Verfahren und Vorrichtung zum Sintern von Eisenerzen, Abbraenden od. dgl. |
| DE875670C (de) * | 1943-04-25 | 1953-05-04 | Metallgesellschaft Ag | Verfahren zur Leistungssteigerung von Saugzugsintergeraeten beim Sintern von insbesondere sauren Eisenerzen |
| GB1219269A (en) * | 1967-12-12 | 1971-01-13 | Coal Industry Patents Ltd | Sintering materials to produce aggregates |
| DE2323388C3 (de) * | 1972-05-10 | 1975-08-21 | Nippon Steel Corp., Tokio | Verfahren zum Saugzugsintern von Erz, insbesondere Eisenerz, auf einem Sinterband |
| JPS5935973B2 (ja) * | 1975-06-17 | 1984-08-31 | チユウオウデンキコウギヨウ カブシキガイシヤ | マンガン焼結鉱製造における排ガス中の硫黄酸化物抑制方法 |
| JPS58498B2 (ja) * | 1975-12-12 | 1983-01-06 | 新日本製鐵株式会社 | シヨウケツゲンリヨウノソウニユウホウホウ |
| SU692875A1 (ru) * | 1977-02-07 | 1979-10-25 | Всесоюзный Научно-Исследовательский И Проектный Институт По Очистке Технологических Газов, Сточных Вод И Использованию Вторичных Энергоресурсов Предприятий Черной Металлургии Донецкий Филиал | Способ получени офлюсованного агломерата |
| JPS5420903A (en) * | 1977-07-15 | 1979-02-16 | Sumitomo Heavy Ind Ltd | Sintering method with addition of quick lime and its eqipment |
| JPS54122602A (en) * | 1978-03-17 | 1979-09-22 | Sumitomo Metal Ind Ltd | Decreasing method for nox contained in sintering exhaust gas |
| JPH0652713A (ja) | 1992-07-30 | 1994-02-25 | Yamagiwa Kk | 照明器具におけるグローブ取付装置 |
| JPH09511486A (ja) | 1994-01-13 | 1997-11-18 | ザ・トラスティーズ・オブ・コランビア・ユニバーシティー・イン・ザ・シティー・オブ・ニューヨーク | 合成レセプター、ライブラリー及びこれらの使用 |
-
1980
- 1980-04-25 DE DE19803016496 patent/DE3016496C2/de not_active Expired
-
1981
- 1981-01-13 EP EP19810730006 patent/EP0039305B1/de not_active Expired
- 1981-03-11 PL PL23009981A patent/PL230099A1/xx unknown
- 1981-03-23 SU SU813260550A patent/SU1156603A3/ru active
- 1981-04-10 AU AU69420/81A patent/AU539417B2/en not_active Ceased
- 1981-04-17 JP JP5835881A patent/JPS56169732A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| PL230099A1 (enrdf_load_stackoverflow) | 1981-11-13 |
| DE3016496A1 (de) | 1981-11-05 |
| EP0039305A1 (de) | 1981-11-04 |
| JPS6362572B2 (enrdf_load_stackoverflow) | 1988-12-02 |
| JPS56169732A (en) | 1981-12-26 |
| SU1156603A3 (ru) | 1985-05-15 |
| DE3016496C2 (de) | 1984-06-14 |
| AU6942081A (en) | 1981-10-29 |
| AU539417B2 (en) | 1984-09-27 |
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