EP0549136A2 - Procédé de broyage de matière en particules dans un broyeur à rouleaux et appareil pour la mise en oeuvre dudit procédé - Google Patents

Procédé de broyage de matière en particules dans un broyeur à rouleaux et appareil pour la mise en oeuvre dudit procédé Download PDF

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Publication number
EP0549136A2
EP0549136A2 EP92310714A EP92310714A EP0549136A2 EP 0549136 A2 EP0549136 A2 EP 0549136A2 EP 92310714 A EP92310714 A EP 92310714A EP 92310714 A EP92310714 A EP 92310714A EP 0549136 A2 EP0549136 A2 EP 0549136A2
Authority
EP
European Patent Office
Prior art keywords
water
roller press
carrying
grinding
added
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.)
Withdrawn
Application number
EP92310714A
Other languages
German (de)
English (en)
Other versions
EP0549136A3 (en
Inventor
Karl Johan Kromann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FLSmidth and Co AS
Original Assignee
FLSmidth and Co AS
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 FLSmidth and Co AS filed Critical FLSmidth and Co AS
Publication of EP0549136A2 publication Critical patent/EP0549136A2/fr
Publication of EP0549136A3 publication Critical patent/EP0549136A3/en
Withdrawn legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/20—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using rotary pressing members, other than worms or screws, e.g. rollers, rings, discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/06—Selection or use of additives to aid disintegrating

Definitions

  • the present invention relates to a method for grinding particulate material in a roller press.
  • the invention also relates to an apparatus for carrying out the method.
  • a roller press comprises two oppositely rotating rollers, which are forced against one another and against the layer of particulate grinding material between the rollers, this layer being also referred to as the material bed.
  • this object is obtained by a method of the kind mentioned in the introduction, being characterized in that water is added to the grinding material.
  • the present invention is based on the fact that dry, fine-grained materials which contain air, causing them to behave as a liquid, have favourable agglomeration characteristics, and, at the same time, enhanced ability to form a uniform material bed if only a small amount of water is added.
  • a number of tests with grinding of particulate material in a roller press has shown that material bed formation can be improved by adding water to the material and that the vibration level of the roller press is substantially reduced, whereby the roller speed, and hence the capacity of the roller press, can be increased.
  • the tests have shown that the vibration level of the roller press can be halved by adding merely 1.2 per cent water corresponding to 12 litres of water per tonne of material, which is generally equivalent to the effect achievable by a 50 per cent reduction of the roller speed.
  • water is sprayed onto the material at a specific location before the material is introduced into the roller press. It would be advantageous to do this while the material is deposited on a feed belt conveyor or in a supply hopper carrying the material to the roller press.
  • water is continuously added to the material in a smooth, uniform flow, and that the addition of water is controlled as a function of the material feed or alternatively as a function of the vibration level.
  • the quantity of water which should be added depends on the fineness of the material. Therefore, it is a general rule that the greater the fineness of the material, the greater the quantity of water to be added. According to the invention it is preferred that water is added in a quantity between 0 and 30 litres per tonne of material, substantially between 5 and 15 litres per tonne of material.
  • the grinding apparatus should comprise, in addition to a roller press, a supply hopper and/or a feed belt conveyor, also a number of nozzles for addition of water.
  • the illustrated grinding apparatus 1 comprises a roller press 3, a supply hopper 5 and a feed belt conveyor 7.
  • the material to be ground is extracted from a silo 9 onto the feed belt conveyor 7, but the material may also be led directly into the hopper 5 from the silo 9.
  • the apparatus also incorporates a number of nozzles 11 which may be fitted above the feed belt conveyor 7 for water spraying of the material before the material drops into the hopper 5, or a number of nozzles 13 being installed directly in the hopper 5 for water spraying of the material contained in the hopper.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Grinding (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
EP19920310714 1991-12-23 1992-11-24 Method for grinding particulate material in a roller press and apparatus for carrying out the method Withdrawn EP0549136A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK2055/91 1991-12-23
DK205591A DK205591A (da) 1991-12-23 1991-12-23 Fremgangsmaade til formaling af partikelformet materiale i en valsepresse, samt indretning til udoevelse af fremgangsmaaden

Publications (2)

Publication Number Publication Date
EP0549136A2 true EP0549136A2 (fr) 1993-06-30
EP0549136A3 EP0549136A3 (en) 1993-11-03

Family

ID=8109757

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920310714 Withdrawn EP0549136A3 (en) 1991-12-23 1992-11-24 Method for grinding particulate material in a roller press and apparatus for carrying out the method

Country Status (5)

Country Link
EP (1) EP0549136A3 (fr)
JP (1) JPH05245403A (fr)
KR (1) KR930012283A (fr)
DK (1) DK205591A (fr)
MX (1) MX9207011A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104874469A (zh) * 2015-06-16 2015-09-02 鞍钢集团矿业公司 破碎机腔体及皮带输送机的自动喷淋系统及控制方法
CN105268509A (zh) * 2015-11-03 2016-01-27 中建材（合肥）粉体科技装备有限公司 辊压机振捣排气装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW466136B (en) * 2000-01-28 2001-12-01 F L Smidth & Amp Co As Method and apparatus for grinding of particulate material
CN106807527A (zh) * 2015-12-01 2017-06-09 衡阳双雁运输机械有限公司 一种高效破碎机
CN112403631A (zh) * 2020-10-28 2021-02-26 衡阳圣堂科技有限公司 一种客户信息掌上录入装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1444809A (fr) * 1965-05-24 1966-07-08 Stein & Roubaix Perfectionnements aux broyeurs à pendulaires
US3697003A (en) * 1970-02-04 1972-10-10 Industrial Nucleonics Corp Grinding mill method and apparatus
FR2320138A1 (fr) * 1975-08-04 1977-03-04 Dessau Zementanlagenbau Veb Procede et dispositif pour le broyage fin de substances minerales
FR2381569A1 (fr) * 1977-02-24 1978-09-22 Schoenert Klaus Procede de broyage fin et tres fin de matieres fragiles
EP0066392A2 (fr) * 1981-06-02 1982-12-08 General Comminution Inc. Procédé de pulvérisation
DE3337615A1 (de) * 1983-10-15 1985-04-25 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren und anlage zur zerkleinerung, mahlung und aufbereitung gruben- oder naturfeuchter mineralischer rohstoffe wie erze oder dergleichen
EP0238432A2 (fr) * 1986-02-14 1987-09-23 Nordberg Inc. Méthode et dispositif de broyage à haut rendement
EP0527333A1 (fr) * 1991-08-14 1993-02-17 Krupp Polysius Ag Procédé et installation de broyage pour matériau friable

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1444809A (fr) * 1965-05-24 1966-07-08 Stein & Roubaix Perfectionnements aux broyeurs à pendulaires
US3697003A (en) * 1970-02-04 1972-10-10 Industrial Nucleonics Corp Grinding mill method and apparatus
FR2320138A1 (fr) * 1975-08-04 1977-03-04 Dessau Zementanlagenbau Veb Procede et dispositif pour le broyage fin de substances minerales
FR2381569A1 (fr) * 1977-02-24 1978-09-22 Schoenert Klaus Procede de broyage fin et tres fin de matieres fragiles
EP0066392A2 (fr) * 1981-06-02 1982-12-08 General Comminution Inc. Procédé de pulvérisation
DE3337615A1 (de) * 1983-10-15 1985-04-25 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren und anlage zur zerkleinerung, mahlung und aufbereitung gruben- oder naturfeuchter mineralischer rohstoffe wie erze oder dergleichen
EP0238432A2 (fr) * 1986-02-14 1987-09-23 Nordberg Inc. Méthode et dispositif de broyage à haut rendement
EP0527333A1 (fr) * 1991-08-14 1993-02-17 Krupp Polysius Ag Procédé et installation de broyage pour matériau friable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104874469A (zh) * 2015-06-16 2015-09-02 鞍钢集团矿业公司 破碎机腔体及皮带输送机的自动喷淋系统及控制方法
CN105268509A (zh) * 2015-11-03 2016-01-27 中建材（合肥）粉体科技装备有限公司 辊压机振捣排气装置

Also Published As

Publication number Publication date
DK205591D0 (da) 1991-12-23
JPH05245403A (ja) 1993-09-24
MX9207011A (es) 1993-06-01
DK205591A (da) 1993-06-24
KR930012283A (ko) 1993-07-20
EP0549136A3 (en) 1993-11-03

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