RU2002123056A - DEVICE FOR GRINDING GRAIN MATERIAL - Google Patents

DEVICE FOR GRINDING GRAIN MATERIAL

Info

Publication number
RU2002123056A
RU2002123056A RU2002123056/03A RU2002123056A RU2002123056A RU 2002123056 A RU2002123056 A RU 2002123056A RU 2002123056/03 A RU2002123056/03 A RU 2002123056/03A RU 2002123056 A RU2002123056 A RU 2002123056A RU 2002123056 A RU2002123056 A RU 2002123056A
Authority
RU
Russia
Prior art keywords
shaft
cross
feed shaft
grinding
fall
Prior art date
Application number
RU2002123056/03A
Other languages
Russian (ru)
Other versions
RU2253512C2 (en
Inventor
Йерн ТОУБОРГ (DK)
Йерн ТОУБОРГ
Original Assignee
Ф.Л. Смидт Энд Ко. А/С (Dk)
Ф.Л. Смидт Энд Ко. А/С
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ф.Л. Смидт Энд Ко. А/С (Dk), Ф.Л. Смидт Энд Ко. А/С filed Critical Ф.Л. Смидт Энд Ко. А/С (Dk)
Publication of RU2002123056A publication Critical patent/RU2002123056A/en
Application granted granted Critical
Publication of RU2253512C2 publication Critical patent/RU2253512C2/en

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 shaft´s 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.

Claims (5)

1. Устройство для измельчения зернистого материала, такого как сырьевые материалы для получения цемента, цементный клинкер или аналогичные материалы, содержащее вальцовую мельницу (1), а также шахтный ствол (11) для подачи зернистого материала в зону (13) измельчения вальцовой мельницы, при этом шахтный ствол (11) имеет по существу вертикальную конфигурацию и выполнен с уменьшающимся в направлении вниз поперечным сечением, отличающееся тем, что уменьшение длины окружности поперечного сечения шахтного ствола на единицу высоты имеет убывающий характер в направлении вниз.1. A device for grinding granular material, such as raw materials for cement, cement clinker or similar materials containing a roller mill (1), as well as a shaft shaft (11) for feeding granular material to the grinding mill grinding zone (13), with this shaft shaft (11) has a substantially vertical configuration and is made decreasing in the downward direction of the cross section, characterized in that the reduction in the circumference of the cross section of the shaft shaft per unit height is decreasing Character of a downward direction. 2. Устройство по п.1, отличающееся тем, что площадь поперечного сечения шахтного ствола находится в зависимости от высоты падения, причем данная зависимость определяется следующей формулой:2. The device according to claim 1, characterized in that the cross-sectional area of the shaft is dependent on the height of the fall, and this dependence is determined by the following formula:
Figure 00000001
Figure 00000001
 где А - площадь поперечного сечения;where A is the cross-sectional area;
Figure 00000002
- объемный расход;
Figure 00000002
- volumetric flow rate; g - ускорение силы тяжести;g is the acceleration of gravity; h - высота падения;h is the height of the fall; Δ находится в пределах от 0 до 0,2, предпочтительно Δ меньше 0,1.Δ is in the range from 0 to 0.2, preferably Δ is less than 0.1. 3. Устройство по п.1, отличающееся тем, что шахтный ствол выполнен по меньшей мере из 3 пирамидальных или конических секций.3. The device according to claim 1, characterized in that the shaft shaft is made of at least 3 pyramidal or conical sections. 4. Устройство по п.1 или 2, отличающееся тем, что уменьшение длины окружности поперечного сечения шахтного ствола имеет непрерывно убывающий характер в направлении вниз.4. The device according to claim 1 or 2, characterized in that the reduction in the circumference of the cross section of the shaft shaft is continuously decreasing in the downward direction. 5. Устройство по п.4, отличающееся тем, что шахтный ствол имеет воронкообразную конфигурацию.5. The device according to claim 4, characterized in that the mine shaft has a funnel-shaped configuration.
RU2002123056/03A 2000-01-28 2001-01-19 Device for disintegrating grain material RU2253512C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200000147 2000-01-28
DKPA200000147 2000-01-28

Publications (2)

Publication Number Publication Date
RU2002123056A true RU2002123056A (en) 2004-03-10
RU2253512C2 RU2253512C2 (en) 2005-06-10

Family

ID=8159040

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2002123056/03A RU2253512C2 (en) 2000-01-28 2001-01-19 Device for disintegrating grain 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)

* Cited by examiner, † Cited by third party
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

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
ZA200204389B (en) 2003-08-27
KR100729026B1 (en) 2007-06-14
CA2397796C (en) 2009-01-13
EP1261431B1 (en) 2008-06-04
CA2397796A1 (en) 2001-08-02
AU771192B2 (en) 2004-03-18

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Legal Events

Date Code Title Description
MM4A The patent is invalid due to non-payment of fees

Effective date: 20100120