EP0308350A2 - Feinzerkleinerungsverfahren für Mineralien und Zerkleinerer zur Durchführung des Verfahrens - Google Patents

Feinzerkleinerungsverfahren für Mineralien und Zerkleinerer zur Durchführung des Verfahrens Download PDF

Info

Publication number: EP0308350A2
Authority: EP; European Patent Office
Prior art keywords: cylinders; axes; roller; ground; grinding
Prior art date: 1987-09-17
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

Application number

EP88402353A

Other languages

English (en)

French (fr)

Other versions

EP0308350B1 (de

EP0308350A3 (en

Inventor

René Durinck

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.)

F C B

Original Assignee

F C B

Fives Cail Babcock SA

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.)

1987-09-17

Filing date

1988-09-16

Publication date

1989-03-22

1988-09-16 Application filed by F C B, Fives Cail Babcock SA filed Critical F C B

1989-03-22 Publication of EP0308350A2 publication Critical patent/EP0308350A2/de

1990-02-07 Publication of EP0308350A3 publication Critical patent/EP0308350A3/fr

1995-08-09 Application granted granted Critical

1995-08-09 Publication of EP0308350B1 publication Critical patent/EP0308350B1/de

2008-09-16 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 9
229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 4
239000011707 mineral Substances 0.000 title claims abstract description 4
239000000463 material Substances 0.000 claims abstract description 16
230000006835 compression Effects 0.000 claims abstract description 3
238000007906 compression Methods 0.000 claims abstract description 3
230000015572 biosynthetic process Effects 0.000 abstract description 3
230000004888 barrier function Effects 0.000 abstract description 2
239000002245 particle Substances 0.000 description 4
239000010419 fine particle Substances 0.000 description 2
239000001692 EU approved anti-caking agent Substances 0.000 description 1
238000005056 compaction Methods 0.000 description 1
238000006073 displacement reaction Methods 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
230000002093 peripheral effect Effects 0.000 description 1

Images

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
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers

Definitions

the subject of the present invention is a process for fine grinding of minerals consisting in subjecting a layer of the product to be ground to a compression between two cylinders with parallel axes, rotating in opposite directions and being elastically pushed towards one another.
said to be forced feed said to be forced feed, the spacing of the cylinders is adjusted to a low value and the mill is fed with a flow rate equal to several times the theoretical flow rate corresponding to this spacing.
the material thus forced between the cylinders causes their displacement at the cost of an overload of the pressure of the springs the greater the greater the flow of material.
the present invention provides another solution to this. problem. It consists in keeping the ground material under pressure in the space delimited by the cylinders immediately below the fictitious plane containing the axes of the cylinders.
One way of creating this pressure consists in closing said space downwards by a dam so as to leave only a passage of reduced section for the output of the crushed products.
This barrier could, for example, consist of a roller with a diameter smaller than that of the cylinders, arranged parallel to the latter below the plane of the axes of the cylinders, this roller being elastically pushed towards one of the cylinders while remaining practically in contact with the other cylinder and forming with the first a narrow slot for the outlet of the ground products; this roller may be free to rotate or driven at an adequate speed.
This crusher consists essentially of two identical cylinders 10 and 12, with horizontal and parallel axes, elastically pushed towards one another by springs or by means of a hydro-pneumatic system.
the two cylinders are rotated at the same speed and in opposite directions.
Under the cylinders is disposed a roller 14 of smaller diameter which is mounted so that it can be close and distant from the cylinder 12 while remaining at a substantially constant and low distance from the cylinder 10.
the two bearings 18 of the roller 14 can, for example, be guided in two slides or supported by two arms which can pivot about a parallel axis to the axes of the cylinders, so that, in all working conditions, the roller can assume a position of equilibrium relative to the cylinder 12 by being pushed towards the latter by springs 20 so as to exert the desired pressure on the layer of material between the roller and said cylinder.
the roller 14 can be rotated so that its tangential speed is approximately equal to that of the cylinders, or different or left free to rotate.
the surface of the roller may be smooth or have circumferential, longitudinal, chevron-shaped ribs or grooves, etc.
the roller 14 could be replaced by a suitably profiled bar. Means may be provided for adjusting the relative position of the roller and of the cylinder 10 to compensate for their wear, maintaining a suitable clearance between them.
the bearings of the cylinder 10 are fixed and the bearings of the other cylinder 12 are mounted on slides or pivoting arms to allow this cylinder to approach and move away from the first.
the movable bearings are held in abutment by the elastic thrust means so as to maintain a minimum spacing between the two cylinders.
the material to be ground is loading above the cylinders in a feed chute 16, and the feed rate is significantly greater than the rate corresponding to the minimum spacing, so that the cylinders are maintained at a greater spacing by the layer of material that forms between them.
grinding is carried out not only by crushing, under the action of the pressure exerted by the cylinders, but also by attrition between particles, so that a high proportion of fine particles is formed.
the grinding zone is extended below this plane by the space 22 delimited by the two cylinders and the roller 14 and where the material continues to be subjected to pressures in several directions, which combats the formation of platelets or agglomerates.
the force with which the roller 14 is pushed towards the cylinder 12 is chosen according to the nature of the material to be ground and the maximum pressure exerted by the cylinders so that the ground product contains practically no agglomerates.
the material leaving the mill can be further ground in a grinding machine with grinding wheels, balls, etc. It may be subject to classification to separate fine particles, having the particle size of the finished product, larger particles which are either recycled in the grinder with the raw product, or subjected to additional grinding in a finishing apparatus.

Landscapes

Engineering & Computer Science (AREA)
Food Science & Technology (AREA)
Crushing And Grinding (AREA)

EP19880402353 1987-09-17 1988-09-16 Feinzerkleinerungsverfahren für Mineralien und Zerkleinerer zur Durchführung des Verfahrens Expired - Lifetime EP0308350B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR8712875		1987-09-17
FR8712875A FR2620635B1 (fr)	1987-09-17	1987-09-17	Procede de broyage fin de mineraux et broyeur pour la mise en oeuvre de ce procede

Publications (3)

Publication Number	Publication Date
EP0308350A2 true EP0308350A2 (de)	1989-03-22
EP0308350A3 EP0308350A3 (en)	1990-02-07
EP0308350B1 EP0308350B1 (de)	1995-08-09

Family

ID=9354984

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19880402353 Expired - Lifetime EP0308350B1 (de)	1987-09-17	1988-09-16	Feinzerkleinerungsverfahren für Mineralien und Zerkleinerer zur Durchführung des Verfahrens

Country Status (4)

Country	Link
EP (1)	EP0308350B1 (de)
ES (1)	ES2076162T3 (de)
FR (1)	FR2620635B1 (de)
GR (1)	GR3017286T3 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2648366A2 (fr) *	1987-09-17	1990-12-21	Fives Cail Babcock	Procede de broyage fin de mineraux et broyeur pour la mise en oeuvre de ce procede
EP0404656A1 (de) *	1989-06-20	1990-12-27	F C B	Feinzerkleinerungsverfahren für Mineralien und Zerkleinerer zur Durchführung des Verfahrens
RU2253512C2 (ru) *	2000-01-28	2005-06-10	Ф.Л. Смидт Энд Ко. А/С	Устройство для измельчения зернистого материала
CN106076490A (zh) *	2016-06-25	2016-11-09	五洲丰农业科技有限公司	复合肥原料三轴细碎机
CN106179578A (zh) *	2015-05-05	2016-12-07	威而德(日照)园林机械有限公司	碎叶机
CN112495488A (zh) *	2020-12-15	2021-03-16	南京楠凡钰商贸有限公司	一种保湿护肤品制备方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1396711A (en) *	1921-08-15	1921-11-08	Johnston George	Apparatus for pulverizing ore and the like
GB688165A (en) *	1949-12-30	1953-02-25	Miag Vertriebs Gmbh	Improvements in or relating to comminuting devices in roller mills
DE1757093C3 (de) *	1968-03-29	1978-10-19	Alpine Ag, 8900 Augsburg	Walzenmühle zur Feinmahlung
FR2114071A5 (de) *	1970-11-13	1972-06-30	Constantin E Sa
DE3323517A1 (de) *	1983-06-30	1985-01-10	Klöckner-Humboldt-Deutz AG, 5000 Köln	Anlage zur zerkleinerung sproeden mahlgutes wie z. b. zementklinker, erz, kohle oder dergleichen
DE3525936A1 (de) *	1985-07-19	1987-01-29	Krupp Polysius Ag	Verfahren und anlage zur entwaesserung und zerkleinerung von mahlgut hoher feuchte

1987
- 1987-09-17 FR FR8712875A patent/FR2620635B1/fr not_active Expired - Fee Related
1988
- 1988-09-16 EP EP19880402353 patent/EP0308350B1/de not_active Expired - Lifetime
- 1988-09-16 ES ES88402353T patent/ES2076162T3/es not_active Expired - Lifetime
1995
- 1995-08-31 GR GR950402404T patent/GR3017286T3/el unknown

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2648366A2 (fr) *	1987-09-17	1990-12-21	Fives Cail Babcock	Procede de broyage fin de mineraux et broyeur pour la mise en oeuvre de ce procede
EP0404656A1 (de) *	1989-06-20	1990-12-27	F C B	Feinzerkleinerungsverfahren für Mineralien und Zerkleinerer zur Durchführung des Verfahrens
RU2253512C2 (ru) *	2000-01-28	2005-06-10	Ф.Л. Смидт Энд Ко. А/С	Устройство для измельчения зернистого материала
CZ299850B6 (cs) *	2000-01-28	2008-12-10	F. L. Smidth & Co. A/S	Zarízení k mletí cásticového materiálu
CN106179578A (zh) *	2015-05-05	2016-12-07	威而德(日照)园林机械有限公司	碎叶机
CN106076490A (zh) *	2016-06-25	2016-11-09	五洲丰农业科技有限公司	复合肥原料三轴细碎机
CN112495488A (zh) *	2020-12-15	2021-03-16	南京楠凡钰商贸有限公司	一种保湿护肤品制备方法

Also Published As

Publication number	Publication date
ES2076162T3 (es)	1995-11-01
FR2620635B1 (fr)	1992-09-11
EP0308350B1 (de)	1995-08-09
FR2620635A1 (fr)	1989-03-24
EP0308350A3 (en)	1990-02-07
GR3017286T3 (en)	1995-11-30

Legal Events

Date	Code	Title	Description
1989-02-04	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1989-03-22	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): BE CH ES GR IT LI
1989-05-17	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: FIVES-CAIL BABCOCK
1989-12-19	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1990-02-07	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): BE CH ES GR IT LI
1990-05-23	17P	Request for examination filed	Effective date: 19900327
1991-06-12	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: F C B
1991-07-31	17Q	First examination report despatched	Effective date: 19910617
1995-06-23	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1995-07-31	ITF	It: translation for a ep patent filed
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1996-06-14	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1996-06-14	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1996-07-31	26N	No opposition filed
1996-08-12	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GR Payment date: 19960812 Year of fee payment: 9
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1997-09-17	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: ES Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES Effective date: 19970917
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2005-10-05	APAH	Appeal reference modified	Free format text: ORIGINAL CODE: EPIDOSCREFNO

Publication	Publication Date	Title
CA2055227C (fr)	2000-02-01	Broyeur pour le broyage fin de materiaux
EP0404656B1 (de)	1994-04-06	Feinzerkleinerungsverfahren für Mineralien und Zerkleinerer zur Durchführung des Verfahrens
KR920003077B1 (ko)	1992-04-13	로울파쇄기 및 로울파쇄기를 사용한 파쇄방법
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EP0308350B1 (de)	1995-08-09	Feinzerkleinerungsverfahren für Mineralien und Zerkleinerer zur Durchführung des Verfahrens
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FR2670134A1 (fr)	1992-06-12	Procede de broyage de matieres minerales.
WO1999047263A1 (en)	1999-09-23	Improvements in roll crushers
FR2948885A1 (fr)	2011-02-11	Dispositif compact de cisaillage ou dechiquetage et de broyage de produits a broyer
US745560A (en)	1903-12-01	Grinding-mill.
SU1607738A1 (ru)	1990-11-23	Дробилка кормов
JP7069799B2 (ja)	2022-05-18	制御装置
US260669A (en)	1882-07-04	Roller grin ding-mill
JPH03232541A (ja)	1991-10-16	竪型粉砕機
JP2548681B2 (ja)	1996-10-30	摩砕装置
FR2660579A1 (fr)	1991-10-11	Procede de broyage de matieres premieres solides, tels que des minerais.