CA2397796A1 - Method and apparatus for grinding of particulate material - Google Patents
Method and apparatus for grinding of particulate material Download PDFInfo
- Publication number
- CA2397796A1 CA2397796A1 CA002397796A CA2397796A CA2397796A1 CA 2397796 A1 CA2397796 A1 CA 2397796A1 CA 002397796 A CA002397796 A CA 002397796A CA 2397796 A CA2397796 A CA 2397796A CA 2397796 A1 CA2397796 A1 CA 2397796A1
- Authority
- CA
- Canada
- Prior art keywords
- feed shaft
- grinding
- peculiar
- achievable
- admixture
- 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.)
- Granted
Links
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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/286—Feeding devices
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Disintegrating Or Milling (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
Abstract
A description is provided of a method as well as an apparatus for grinding particulate material, such as cement raw materials, cement clinker or similar materials, in a roller mill (1) by subjecting the material to pressing action in a zone (13) between opposite, rotating surfaces where the material is directed to the grinding zone via a feed shaft (11). The method is peculiar in that the material in the feed shaft (11) is accelerated through the action of gravity to a desired velocity without involving essential air admixture, whereas the apparatus is peculiar in that the feed shaft is essentially of a vertical configuration, with a downwardly reduced cross-section, where the reduction of the shafts cross-sectional circumference per height unit is downwardly decreasing.The described configuration of the feed shaft has, surprisingly, proved that the material over a given height of fall may attain high velocities and that this is achievable without involving admixture of air into the material. It has thus been established that it will be possible for the material to attain velocities which are close to the velocity achievable in connection with the free fall of individual particles.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DKPA200000147 | 2000-01-28 | ||
| DKPA200000147 | 2000-01-28 | ||
| PCT/IB2001/000057 WO2001054818A1 (en) | 2000-01-28 | 2001-01-19 | Method and apparatus for grinding of particulate material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2397796A1 true CA2397796A1 (en) | 2001-08-02 |
| CA2397796C CA2397796C (en) | 2009-01-13 |
Family
ID=8159040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002397796A Expired - Fee Related CA2397796C (en) | 2000-01-28 | 2001-01-19 | Method and apparatus for grinding of particulate material |
Country Status (19)
| Country | Link |
|---|---|
| EP (1) | EP1261431B1 (en) |
| JP (1) | JP2003520676A (en) |
| KR (1) | KR100729026B1 (en) |
| CN (1) | CN1139431C (en) |
| AT (1) | ATE397493T1 (en) |
| AU (1) | AU771192B2 (en) |
| BR (1) | BR0107809A (en) |
| CA (1) | CA2397796C (en) |
| CZ (1) | CZ299850B6 (en) |
| DE (1) | DE60134307D1 (en) |
| DK (1) | DK1261431T3 (en) |
| ES (1) | ES2307582T3 (en) |
| MX (1) | MXPA02007282A (en) |
| PL (1) | PL196219B1 (en) |
| PT (1) | PT1261431E (en) |
| RU (1) | RU2253512C2 (en) |
| TW (1) | TW466136B (en) |
| WO (1) | WO2001054818A1 (en) |
| ZA (1) | ZA200204389B (en) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE621430A (en) * | 1961-08-26 | |||
| ZA741753B (en) * | 1974-03-18 | 1975-10-29 | De Beers Ind Diamond | Rolls crushers |
| CH624313A5 (en) * | 1977-06-24 | 1981-07-31 | Buehler Ag Geb | |
| US4396158A (en) * | 1981-05-28 | 1983-08-02 | Olsen Jerome A | Device and method for processing hatchery offal |
| DE3525935A1 (en) * | 1985-07-19 | 1987-01-29 | Krupp Polysius Ag | METHOD AND SYSTEM FOR CRUSHING GROUND MATERIAL |
| JPS6320045A (en) * | 1986-07-11 | 1988-01-27 | 宇部興産株式会社 | Crusher |
| FR2620635B1 (en) * | 1987-09-17 | 1992-09-11 | Fives Cail Babcock | PROCESS OF FINE GRINDING OF MINERALS AND CRUSHER FOR THE IMPLEMENTATION OF THIS PROCESS |
| JPH01110838U (en) * | 1988-01-20 | 1989-07-26 | ||
| DE4126899A1 (en) * | 1991-08-14 | 1993-02-18 | Krupp Polysius Ag | METHOD AND APPENDIX FOR CRUSHING SPROEDEM GRILLS |
| DK205591A (en) * | 1991-12-23 | 1993-06-24 | Smidth & Co As F L | PROCEDURE FOR GRINDING PARTICULATED MATERIAL IN A ROLLING PRESSURE, AND DEVICE FOR EXERCISING THE PROCEDURE |
| JPH06285854A (en) * | 1993-03-31 | 1994-10-11 | Hisao Sato | Apparatus for treatment of expanded styrol |
| EP0841860B1 (en) * | 1995-06-13 | 2003-04-02 | Mark H. Sterner | Method and device for preparing dehydrated pea soup |
| ID29450A (en) * | 1998-12-08 | 2001-08-30 | Micro Motion Inc | CORIOLIS MASS FLOW CONTROLLER |
-
2000
- 2000-12-01 TW TW089125627A patent/TW466136B/en not_active IP Right Cessation
-
2001
- 2001-01-19 WO PCT/IB2001/000057 patent/WO2001054818A1/en active IP Right Grant
- 2001-01-19 MX MXPA02007282A patent/MXPA02007282A/en active IP Right Grant
- 2001-01-19 AT AT01900219T patent/ATE397493T1/en not_active IP Right Cessation
- 2001-01-19 PL PL356139A patent/PL196219B1/en not_active IP Right Cessation
- 2001-01-19 BR BR0107809-7A patent/BR0107809A/en active Search and Examination
- 2001-01-19 EP EP01900219A patent/EP1261431B1/en not_active Expired - Lifetime
- 2001-01-19 ES ES01900219T patent/ES2307582T3/en not_active Expired - Lifetime
- 2001-01-19 CZ CZ20022579A patent/CZ299850B6/en not_active IP Right Cessation
- 2001-01-19 JP JP2001554793A patent/JP2003520676A/en active Pending
- 2001-01-19 DK DK01900219T patent/DK1261431T3/en active
- 2001-01-19 CA CA002397796A patent/CA2397796C/en not_active Expired - Fee Related
- 2001-01-19 PT PT01900219T patent/PT1261431E/en unknown
- 2001-01-19 AU AU23915/01A patent/AU771192B2/en not_active Ceased
- 2001-01-19 RU RU2002123056/03A patent/RU2253512C2/en not_active IP Right Cessation
- 2001-01-19 DE DE60134307T patent/DE60134307D1/en not_active Expired - Fee Related
- 2001-01-19 KR KR1020027008658A patent/KR100729026B1/en not_active IP Right Cessation
- 2001-01-19 CN CNB018038522A patent/CN1139431C/en not_active Expired - Fee Related
-
2002
- 2002-05-31 ZA ZA200204389A patent/ZA200204389B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003520676A (en) | 2003-07-08 |
| PT1261431E (en) | 2008-09-08 |
| DK1261431T3 (en) | 2008-07-21 |
| CN1400924A (en) | 2003-03-05 |
| RU2253512C2 (en) | 2005-06-10 |
| KR20020062776A (en) | 2002-07-29 |
| ES2307582T3 (en) | 2008-12-01 |
| WO2001054818A1 (en) | 2001-08-02 |
| TW466136B (en) | 2001-12-01 |
| CN1139431C (en) | 2004-02-25 |
| AU2391501A (en) | 2001-08-07 |
| DE60134307D1 (en) | 2008-07-17 |
| BR0107809A (en) | 2002-10-22 |
| MXPA02007282A (en) | 2003-02-12 |
| PL196219B1 (en) | 2007-12-31 |
| EP1261431A1 (en) | 2002-12-04 |
| ATE397493T1 (en) | 2008-06-15 |
| CZ299850B6 (en) | 2008-12-10 |
| PL356139A1 (en) | 2004-06-14 |
| CZ20022579A3 (en) | 2003-01-15 |
| RU2002123056A (en) | 2004-03-10 |
| ZA200204389B (en) | 2003-08-27 |
| KR100729026B1 (en) | 2007-06-14 |
| CA2397796C (en) | 2009-01-13 |
| EP1261431B1 (en) | 2008-06-04 |
| AU771192B2 (en) | 2004-03-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |