WO2006024315A1 - Verfahren zum aufbereiten von kohle-trockenstoff für die herstellung von elektroden - Google Patents
Verfahren zum aufbereiten von kohle-trockenstoff für die herstellung von elektroden Download PDFInfo
- Publication number
- WO2006024315A1 WO2006024315A1 PCT/EP2004/009798 EP2004009798W WO2006024315A1 WO 2006024315 A1 WO2006024315 A1 WO 2006024315A1 EP 2004009798 W EP2004009798 W EP 2004009798W WO 2006024315 A1 WO2006024315 A1 WO 2006024315A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mill
- classifier
- adjusted
- grain size
- sifter
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract description 4
- 229910052799 carbon Inorganic materials 0.000 title abstract description 4
- 239000002994 raw material Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000003245 coal Substances 0.000 claims description 3
- 238000009472 formulation Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 7
- 239000002245 particle Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 235000019589 hardness Nutrition 0.000 description 2
- 239000002006 petroleum coke Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/04—Control arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
- B07B7/083—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C2015/002—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs combined with a classifier
Definitions
- Electrodes which are primarily used for electro-metallurgical processes are produced by compressing körni ⁇ gene carbon masses (dry matter) with the addition of pitch as a binder.
- the electrode quality depends crucially on the fact that a predetermined grain size spectrum is maintained in the dry matter.
- Coarse grain, middle grain and fine grain must be selected according to the type of electrode and the fine grain
- the mean grain size is usually at 30 to 60 microns corresponding to a specific surface of 5000 to 2000 cm 2 / g.
- the invention is therefore based on the object of providing a method which is easier to influence with regard to the achievement of certain properties of the dust-like or fine-grained target fraction.
- the solution according to the invention consists in that a mill-sifter combination with grain size that is continuously adjustable during operation is used for grinding the dust fraction.
- a roller mill with integrated sifter has proven particularly useful, in which the grinding pressure and preferably the rotational speed of the mill and the throughput of air through the mill and the sifter are adjustable.
- a classifier preferably a dynamic classifier is used, in which the speed should be adjustable for the purpose of adjusting the grain boundaries.
- the grinding pressure can be adjusted. Since petroleum coke, which is mostly used as a raw material, is unusually hard, the grinding pressure is set two to three times as high as conventional coal grinding.
- the amount of system air that is, the amount of air flow that carries the refined fines from the refining zone to the sifter, can be reduced if lower maximum grain size is desired, and vice versa.
- the maximum grain size can also be influenced by the speed of the dynamic classifier. Depending on the type of classifier, further parameters can be added to influence the particle size.
- the sifter is preferably a known dynamic type, in which the airflow of the mill laden with ground material is guided from the outside to the inside through a ring of tangentially arranged guide vanes and is thereby set in circular motion. Farther inside, it reaches a rotating basket on a spiral track, which is operated at an adjustable speed. The fine particles penetrate the columns of the rotating cage with the flow of air, while the coarser ones are thrown outward again to flow in the space between vanes and
- the fines thus obtained and continuously removed from the air flow in a known manner no longer require any subsequent homogenization. It can be continuously fed directly to a silo, from which it is taken directly or indirectly, preferably continuously borrowed for use.
- This silo can also be dimensioned smaller than previously customary, because no mill changeover takes into account quality change Need to become. Even if parameters of the grinding or visual process have to be adapted due to quality changes of the raw material or changes in the formulation, the mill-sifter combination can be continuously operated. If a fundamental formulation change becomes necessary, the conversion can take place in a few minutes.
- the product which may be obtained in the conversion phase and does not correspond to the target quality can be briefly subjected to intermediate silicidation and then returned to the mill. The continuous operation is thereby practically not interrupted.
- the Umsehaltvorgang vorzugswei ⁇ se computer controlled, with programmed overrides are used to avoid the accumulation of intermediate product (Abmahlmann) or minimize.
- the product for example, which is obtained as a loss from grinding, is collected in an intermediate silo and preferably added to the feed material in a computer-controlled manner so that no environmentally harmful product waste is produced.
- roller mills ball ring mills, roller mills, roller mills and single-roller mills
- All grindable carbon carriers up to the hardest petroleum cokes can be processed.
- the driers can be prepared for all types of electrodes with different hardness and fineness requirements.
- the bandwidth of the producible grains is very large. It is preferably in the range of 1,000 to 10,000 cmVg.
- the essential advantage of the invention is that the grinding process can be switched on continuously and at the same time into the production process. Since the ensiling is partly avoided, partly facilitated and in particular large silos are avoided, the hitherto often extremely disturbing problem of segregation of different grain within the silos is avoided.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Carbon And Carbon Compounds (AREA)
- Disintegrating Or Milling (AREA)
- Crushing And Grinding (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04764756A EP1789363B1 (de) | 2004-09-02 | 2004-09-02 | Verfahren zum aufbereiten von kohle-trockenstoff für die herstellung von elektroden |
JP2007528615A JP4857271B2 (ja) | 2004-09-02 | 2004-09-02 | 電極製造用の炭素乾燥剤の製造方法 |
DE502004008991T DE502004008991D1 (de) | 2004-09-02 | 2004-09-02 | Verfahren zum aufbereiten von kohle-trockenstoff für die herstellung von elektroden |
PCT/EP2004/009798 WO2006024315A1 (de) | 2004-09-02 | 2004-09-02 | Verfahren zum aufbereiten von kohle-trockenstoff für die herstellung von elektroden |
CNB2004800439051A CN100548876C (zh) | 2004-09-02 | 2004-09-02 | 制备用于生产电极的碳干料的方法 |
US11/661,434 US8052077B2 (en) | 2004-09-02 | 2004-09-02 | Method for preparing a carbon siccative for producing electrodes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2004/009798 WO2006024315A1 (de) | 2004-09-02 | 2004-09-02 | Verfahren zum aufbereiten von kohle-trockenstoff für die herstellung von elektroden |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006024315A1 true WO2006024315A1 (de) | 2006-03-09 |
Family
ID=34958497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/009798 WO2006024315A1 (de) | 2004-09-02 | 2004-09-02 | Verfahren zum aufbereiten von kohle-trockenstoff für die herstellung von elektroden |
Country Status (6)
Country | Link |
---|---|
US (1) | US8052077B2 (de) |
EP (1) | EP1789363B1 (de) |
JP (1) | JP4857271B2 (de) |
CN (1) | CN100548876C (de) |
DE (1) | DE502004008991D1 (de) |
WO (1) | WO2006024315A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101450333B (zh) * | 2007-11-29 | 2011-02-02 | 沈阳铝镁设计研究院 | 一种碳质原料破碎筛分方法及系统 |
US10016762B2 (en) * | 2015-06-16 | 2018-07-10 | Arvos Raymond Bartlett Snow Llc | Vertical bowl mill for producing coarse ground particles |
CN113372119B (zh) * | 2020-04-28 | 2022-12-30 | 吉林炭素有限公司 | 一种石墨电极本体配方中干料粒级组成的设计方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4122062A1 (de) * | 1991-07-03 | 1993-01-14 | R & D Carbon Ltd | Verfahren zur aufbereitung eines trockenstoffes zur herstellung von elektroden |
US6194067B1 (en) * | 1997-06-30 | 2001-02-27 | Nippon Steel Corporation | Carbonaceous particles and carbonaceous fibers both coated with boron nitride, and lithium secondary cells produced by using the same as negative active material |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2807691B1 (de) * | 1978-02-23 | 1979-04-26 | Babcock Krauss Maffei Ind | Verfahren und Vorrichtung zur Regelung der Feinheit von Fertiggut aus einer Mahlanlage |
JPS6150678A (ja) * | 1984-08-18 | 1986-03-12 | 川崎重工業株式会社 | 分級器 |
DE8425837U1 (de) * | 1984-08-31 | 1984-11-22 | Krupp Polysius Ag, 4720 Beckum | Wälzmühle |
GB2176134A (en) * | 1985-06-03 | 1986-12-17 | Smidth & Co As F L | Separator for sorting particulate material |
US4798342A (en) * | 1988-01-11 | 1989-01-17 | Williams Patent Crusher And Pulverizer Company | Fuel processing system for control of nitrous oxide emissions |
US4981269A (en) * | 1988-11-18 | 1991-01-01 | Ube Industries, Ltd. | Vertical mill |
JPH06102161B2 (ja) * | 1988-11-18 | 1994-12-14 | 宇部興産株式会社 | 堅型粉砕機の運転方法 |
DE4022062C1 (en) | 1990-07-11 | 1991-11-14 | Thyssen Stahl Ag, 4100 Duisburg, De | Strip guide for butt welding along edge - uses sensors along length for control changing axial position of deflection rollers |
DE4223762B4 (de) * | 1992-07-18 | 2009-07-23 | Khd Humboldt Wedag Gmbh | Sichtereinrichtung zum Sichten von körnigem Gut und Umlaufmahlanlage mit Einschaltung einer solchen Sichtereinrichtung |
US5330110A (en) * | 1993-07-12 | 1994-07-19 | Williams Robert M | Apparatus for grinding material to a fineness grade |
JP3635044B2 (ja) * | 2001-06-08 | 2005-03-30 | 三井鉱山株式会社 | リチウム二次電池用負極材料、その製造方法、及びリチウム二次電池 |
US6966508B2 (en) * | 2002-12-26 | 2005-11-22 | Edward Kenneth Levy | On-line control of coal flow |
-
2004
- 2004-09-02 CN CNB2004800439051A patent/CN100548876C/zh not_active Expired - Fee Related
- 2004-09-02 JP JP2007528615A patent/JP4857271B2/ja not_active Expired - Fee Related
- 2004-09-02 WO PCT/EP2004/009798 patent/WO2006024315A1/de active Application Filing
- 2004-09-02 US US11/661,434 patent/US8052077B2/en not_active Expired - Fee Related
- 2004-09-02 EP EP04764756A patent/EP1789363B1/de not_active Revoked
- 2004-09-02 DE DE502004008991T patent/DE502004008991D1/de not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4122062A1 (de) * | 1991-07-03 | 1993-01-14 | R & D Carbon Ltd | Verfahren zur aufbereitung eines trockenstoffes zur herstellung von elektroden |
US6194067B1 (en) * | 1997-06-30 | 2001-02-27 | Nippon Steel Corporation | Carbonaceous particles and carbonaceous fibers both coated with boron nitride, and lithium secondary cells produced by using the same as negative active material |
Non-Patent Citations (2)
Title |
---|
DATABASE CA [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; 5 November 1996 (1996-11-05), GALK, J. ET AL: "Classifier mills for coal grinding and drying", XP002337379, retrieved from STN Database accession no. 125:252518 * |
PROCEEDINGS - ANNUAL INTERNATIONAL PITTSBURGH COAL CONFERENCE , 12TH, 567-572 CODEN: PICNE4; ISSN: 1075-7961, 1995 * |
Also Published As
Publication number | Publication date |
---|---|
US20070284463A1 (en) | 2007-12-13 |
EP1789363B1 (de) | 2009-02-11 |
DE502004008991D1 (de) | 2009-03-26 |
JP2008511525A (ja) | 2008-04-17 |
JP4857271B2 (ja) | 2012-01-18 |
US8052077B2 (en) | 2011-11-08 |
CN101010258A (zh) | 2007-08-01 |
CN100548876C (zh) | 2009-10-14 |
EP1789363A1 (de) | 2007-05-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2313199B1 (de) | Vorrichtung und verfahren zur herstellung von mehl und/oder griess | |
EP0406644B1 (de) | Luftstrom-Wälzmühle | |
EP2956249A1 (de) | Sichter und verfahren zum betreiben eines sichters | |
EP3209423B1 (de) | Mahlanlage zum zerkleinern von mahlgut sowie verfahren zum zerkleinern von mahlgut | |
EP0292739B1 (de) | Verfahren und Anlage zur Zerkleinerung von Mahlgut | |
EP0406591B1 (de) | Verfahren und Anlage zur Zerkleinerung von Mahlgut | |
DE4005323A1 (de) | Verfahren und mahlanlage zur zweistufigen zerkleinerung von sproedem mahlgut | |
EP1808231A1 (de) | Trennen von Mineralien | |
DE69705034T2 (de) | Verfahren und anlage für die gleichzeitige und kontinuierliche herstellung mehrerer granulatfraktionen eines mineralischen materials | |
DE19514971A1 (de) | Verfahren und Anlage zur energiesparenden Herstellung eines Feingutes | |
EP1214155B1 (de) | Verfahren und windsichter zum klassieren von zerkleinertem aufgabegut | |
EP1786573B1 (de) | Vorrichtung zum sichten von aufgabegut | |
EP1789363B1 (de) | Verfahren zum aufbereiten von kohle-trockenstoff für die herstellung von elektroden | |
DE19606672A1 (de) | Sichter | |
DE3710602A1 (de) | Vorrichtung und verfahren zur aufbereitung von koernigem material, insbesondere weizen | |
DE9313930U1 (de) | Einrichtungen zur Beeinflussung eines Kornspektrums in hochtourigen Sichtermühlen | |
EP3665133A1 (de) | Verfahren und anlage zur herstellung von zement | |
EP2978520B1 (de) | Verfahren zur erzeugung eines optimierten granulats | |
EP0717665B1 (de) | Zentrifugalkraft-windsichter | |
DE102014015654B4 (de) | Anlage zum Mahlen und Sichten von Zementklinker | |
WO2024074632A2 (de) | Schüttgutmühle zur grobgutaufbereitung | |
DE2651548A1 (de) | Verfahren und vorrichtung zum mahlen und sichten eines gutes | |
DE1909241C (de) | Verfahren und Vorrichtung zur Zer kleinerung von Zellulosestoffen | |
DE3037830A1 (de) | Verfahren zur aufbereitung von kohle | |
DE1161111B (de) | Verfahren zum Regeln von Trommelmuehlen zwecks Aufrechterhaltung eines von der Muehle erzeugten Feinheitsgrades des Mahlgutes |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2004764756 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11661434 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200480043905.1 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007528615 Country of ref document: JP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1348/CHENP/2007 Country of ref document: IN |
|
WWP | Wipo information: published in national office |
Ref document number: 2004764756 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 11661434 Country of ref document: US |