EP0025238A1 - Broyeur centrifuge - Google Patents
Broyeur centrifuge Download PDFInfo
- Publication number
- EP0025238A1 EP0025238A1 EP80200755A EP80200755A EP0025238A1 EP 0025238 A1 EP0025238 A1 EP 0025238A1 EP 80200755 A EP80200755 A EP 80200755A EP 80200755 A EP80200755 A EP 80200755A EP 0025238 A1 EP0025238 A1 EP 0025238A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- axis
- discharge
- conical extension
- grinding drum
- 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- Withdrawn
Links
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
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/04—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container
- B02C17/08—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container with containers performing a planetary movement
Definitions
- the invention relates to a centrifugal mill with a cylindrical grinding drum which rotates about its own drum axis and at the same time rotates on a rotating circle with a constant rotation ratio about a fixed axis of rotation parallel to the drum axis, the distance between the drum axis and the axis of rotation being smaller than the radius of the grinding drum.
- a drive mechanism for the rotation of the grinding drum about the drum axis and for rotation on the rotation circle a loading device on one end part and a discharge device on the other end part of the grinding drum.
- a centrifugal mill with a cylindrical grinding drum of the type described at the outset is known, the feeding being carried out by means of a funnel-shaped loading device through a vertical end part and an overflow nozzle being arranged as a discharge device in the other vertical end part.
- a discharge screw can also be arranged in the discharge device, which feeds coarse material back into the grinding drum.
- Such a centrifugal mill with a horizontally mounted grinding drum is also described in DE-OS 2647578, in which a central opening with a charging device is arranged in a vertical end part and a central opening with an overflow nozzle is arranged in the other vertical end part.
- the invention has for its object to reduce the wear in the loading and emptying zone and to prevent the throwing out of grinding media.
- conical extension parts are arranged on both end parts
- a spiral entry device is placed on the loading side of the conical extension part
- discharge openings are arranged on the discharge side near the end of the conical extension part in the jacket of the cone.
- the conical extension parts are attached to the open end parts with their axis extending the axis of the grinding drum. They can consist of several parts that are attached one behind the other. This makes assembly and disassembly easier and quicker access to the grinding drum.
- the loading opening of the spiral is arranged upwards.
- the size of the loading opening is expediently chosen so that the edge of the opening does not cover an area during the movement of the grinding drum on the rotation circle, which is sufficient for a stationary loading. In the case of a horizontally arranged grinding drum and a rectangular opening, the distance between the two edges parallel to the axis of the grinding drum must be greater than the diameter of the rotating circle. This means e.g. no flexible loading device connected to the opening required.
- a preferred embodiment is that the spiral of the entry device is arranged in one plane. This results in a particularly even entry of the material into the grinding drum.
- a preferred embodiment consists in that the part of the conical extension part provided with the discharge openings is cylindrical. This results in a particularly even discharge.
- a preferred embodiment consists in that a collecting channel with a directed discharge opening is fastened around the part of the conical extension part provided with discharge openings. As a result, the discharged material is collected in a simple manner and can be removed in one place.
- a preferred embodiment is that the discharge openings in the conical extension part are slit-shaped. This also makes the discharge more uniform.
- the conical extension part 2a and the discharge side the conical extension part 2b are fastened to the two front parts 1 of the grinding drum.
- the spiral-shaped insertion device 3 is placed on the extension part 2a.
- slot-shaped discharge devices 4 are attached in the jacket of the cone near the end of the cone.
- the spiral 5 is arranged in one plane in the insertion device 3.
- the part of the extension part 2b provided with discharge openings is cylindrical and surrounded by a collecting channel 7 with the discharge opening 8 directed downwards.
- the advantages of the invention are that the wear in the loading and emptying zone is significantly reduced, the throwing out of grinding media is avoided, and a very uniform loading and very uniform discharge is achieved with a considerable increase in throughput.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2936208 | 1979-09-07 | ||
DE19792936208 DE2936208A1 (de) | 1979-09-07 | 1979-09-07 | Zentrifugalmuehle |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0025238A1 true EP0025238A1 (fr) | 1981-03-18 |
Family
ID=6080309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80200755A Withdrawn EP0025238A1 (fr) | 1979-09-07 | 1980-08-08 | Broyeur centrifuge |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0025238A1 (fr) |
JP (1) | JPS5645767A (fr) |
AU (1) | AU6208580A (fr) |
CA (1) | CA1146517A (fr) |
DE (1) | DE2936208A1 (fr) |
IN (1) | IN151923B (fr) |
NO (1) | NO802426L (fr) |
ZA (1) | ZA805516B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100389053C (zh) * | 2005-11-09 | 2008-05-21 | 中国铝业股份有限公司 | 隔仓式给矿器 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3224098A1 (de) * | 1982-06-29 | 1983-12-29 | Metallgesellschaft Ag, 6000 Frankfurt | Zentrifugalmuehle mit horizontaler, zylinderfoermiger mahltrommel |
JP3002476U (ja) * | 1994-01-20 | 1994-09-27 | 大島工業株式会社 | ボールミル |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE204949C (fr) * | ||||
US2549919A (en) * | 1947-06-06 | 1951-04-24 | Smidth & Co As F L | Airswept rotary mill or drum having separate discharge means for air and ground material |
US3027104A (en) * | 1961-02-28 | 1962-03-27 | Newton L Hall | Horizontal rotary grinding mill with floating load-partition |
FR1289073A (fr) * | 1961-05-04 | 1962-03-30 | Kloeckner Humboldt Deutz Ag | Broyeur pour le concassage fin de matières naturelles ou synthétiques |
FR2323446A1 (fr) * | 1975-09-10 | 1977-04-08 | Chamber Mines Services Proprie | Broyeur centrifuge |
-
1979
- 1979-09-07 DE DE19792936208 patent/DE2936208A1/de not_active Withdrawn
- 1979-11-22 IN IN1223/CAL/79A patent/IN151923B/en unknown
-
1980
- 1980-08-08 EP EP80200755A patent/EP0025238A1/fr not_active Withdrawn
- 1980-08-13 NO NO802426A patent/NO802426L/no unknown
- 1980-09-05 ZA ZA00805516A patent/ZA805516B/xx unknown
- 1980-09-05 AU AU62085/80A patent/AU6208580A/en not_active Abandoned
- 1980-09-05 CA CA000359646A patent/CA1146517A/fr not_active Expired
- 1980-09-06 JP JP12394480A patent/JPS5645767A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE204949C (fr) * | ||||
US2549919A (en) * | 1947-06-06 | 1951-04-24 | Smidth & Co As F L | Airswept rotary mill or drum having separate discharge means for air and ground material |
US3027104A (en) * | 1961-02-28 | 1962-03-27 | Newton L Hall | Horizontal rotary grinding mill with floating load-partition |
FR1289073A (fr) * | 1961-05-04 | 1962-03-30 | Kloeckner Humboldt Deutz Ag | Broyeur pour le concassage fin de matières naturelles ou synthétiques |
FR2323446A1 (fr) * | 1975-09-10 | 1977-04-08 | Chamber Mines Services Proprie | Broyeur centrifuge |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100389053C (zh) * | 2005-11-09 | 2008-05-21 | 中国铝业股份有限公司 | 隔仓式给矿器 |
Also Published As
Publication number | Publication date |
---|---|
DE2936208A1 (de) | 1981-03-26 |
NO802426L (no) | 1981-03-09 |
JPS5645767A (en) | 1981-04-25 |
AU6208580A (en) | 1981-03-12 |
CA1146517A (fr) | 1983-05-17 |
ZA805516B (en) | 1982-04-28 |
IN151923B (fr) | 1983-09-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |
|
AK | Designated contracting states |
Designated state(s): AT BE DE FR GB IT LU NL SE |
|
17P | Request for examination filed |
Effective date: 19810527 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 19830509 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19870831 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SCHYMURA, KONRAD, DIPL.-ING. Inventor name: GOTE, HEINRICH, ING.GRAD. Inventor name: ROSENSTOCK, FRIEDRICH |