EP0273198A2 - Procédé et installation de broyage à deux étages pour matière à broyer fragile - Google Patents
Procédé et installation de broyage à deux étages pour matière à broyer fragile Download PDFInfo
- Publication number
- EP0273198A2 EP0273198A2 EP87117375A EP87117375A EP0273198A2 EP 0273198 A2 EP0273198 A2 EP 0273198A2 EP 87117375 A EP87117375 A EP 87117375A EP 87117375 A EP87117375 A EP 87117375A EP 0273198 A2 EP0273198 A2 EP 0273198A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- mill
- semolina
- roller mill
- amount
- screening
- 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
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
- B02C4/28—Details
- B02C4/42—Driving mechanisms; Roller speed control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
Definitions
- the invention relates to a method (according to the preamble of claim 1) and a system (according to the preamble of claim 5) for the two-stage comminution of brittle regrind.
- the invention has for its object to provide a method according to the preamble of claim 1 and a system according to the preamble of claim 5 so that in the overall system results in the highest possible energy savings and the lowest possible work requirements for the crushing of the ground material.
- the system shown for the two-stage comminution of brittle ground material for example cement clinker, contains a roller mill 1 and a second mill 2 connected downstream of the roller mill 1, which is preferably designed as a ball mill.
- the system also contains a classifier 3 for classifying the material discharged from the second mill 2.
- a measuring device 4 is provided for determining the amount of semolina produced during the screening.
- a control flap 6 provided with a motor 5, which serves to divide the amount of semolina produced during the screening into a partial flow fed to the roller mill 1 and a partial flow fed to the second mill 2.
- the ground material to be comminuted is located in storage containers 7, 8, 9 (which, for example, are assigned to individual components). It is fed to the roller mill 1 via metering belt scales 10, 11, 12.
- the roller mill 1 contains two rollers 13, 14, of which the roller 13 is designed as a fixed roller and the roller 14 as a loose roller.
- the two rollers pressed against each other at high pressure are driven by electric motors 15, 16 via gears 17, 18.
- Measuring devices 19 and 20 determine the electric drive power consumed by the electric motors 15 and 16, respectively. Furthermore, a device 21 is provided which is connected to the measuring devices 19, 20 and selects the higher of the two measured power values. In terms of control technology, the device 21 is connected to the motor 5 of the control flap 6.
- the measuring device 4 which determines the total amount of semolina produced during the sifting, is connected to a controller 22 which receives a signal from a summing element 23 which corresponds to the amount of fresh material just supplied (sum of the amount of regrind withdrawn from the storage containers 7, 8 and 9) .
- the controller 22 is connected to the drives of the dosing belt scales 10, 11 and 12 via a switching element 24.
- the system also contains a device 25, which is likewise connected to the switching element 24, for monitoring the fill level of the second mill 2.
- the regrind fed to the roller mill 1 is comminuted in the nip of the roller mill and, if the grain size is appropriate, is also comminuted individually.
- the agglomerates resulting from the comminution of the material bed are dissolved in the second mill 2. If necessary, the ground material in the second mill 2 undergoes further comminution.
- the material discharged from the mill 2 is sighted in the sifter 3.
- a partial flow of the roller mill 1 and a further partial flow of the mill 2 are fed from the resulting amount of semolina via the control flap 6.
- a first control loop which contains the measuring device 4 and the controller 22
- the quantity of fresh material fed to the roller mill 1 via the metering belt scales 10, 11, 12 is regulated in dependence on the quantity of semolina resulting from the screening so that the sum of the quantity of fresh material and the quantity of semolina for Mill 2 remains constant (27 is a setpoint).
- a second control loop which contains the measuring devices 19, 20 and the control flap 6, the amount of semolina obtained during the screening is divided between the partial flows fed to the roller mill 1 and the second mill 2 in such a way that the drive power consumed by the roller mill 1 remains constant.
- the device 21 selects each the higher of the two power values determined by the measuring devices 19, 20 and uses it to control the motor 5 of the control flap 6 (26 is a target value).
- the device 25 sends a signal to the switching element 24 and interrupts the above-described regulation of the amount of fresh material depending on the quantity of semolina until the fill level of the mill 2 has normalized again.
- the roller mill 1 runs in normal operation with constant power and is operated at constant speed.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3644341 | 1986-12-23 | ||
DE19863644341 DE3644341A1 (de) | 1986-12-23 | 1986-12-23 | Verfahren und anlage zur zweistufigen zerkleinerung von sproedem mahlgut |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0273198A2 true EP0273198A2 (fr) | 1988-07-06 |
EP0273198A3 EP0273198A3 (en) | 1989-08-16 |
EP0273198B1 EP0273198B1 (fr) | 1991-02-06 |
Family
ID=6317129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87117375A Expired - Lifetime EP0273198B1 (fr) | 1986-12-23 | 1987-11-25 | Procédé et installation de broyage à deux étages pour matière à broyer fragile |
Country Status (8)
Country | Link |
---|---|
US (1) | US4783011A (fr) |
EP (1) | EP0273198B1 (fr) |
JP (1) | JPS63166442A (fr) |
KR (1) | KR880007128A (fr) |
BR (1) | BR8707014A (fr) |
CA (1) | CA1284976C (fr) |
DE (2) | DE3644341A1 (fr) |
ES (1) | ES2020252B3 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9067213B2 (en) | 2008-07-02 | 2015-06-30 | Buhler Ag | Method for producing flour and/or semolina |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3813661A1 (de) * | 1988-04-22 | 1989-11-02 | Krupp Polysius Ag | Mahlanlage |
DE3822729A1 (de) * | 1988-07-05 | 1990-01-11 | Krupp Polysius Ag | Anlage zur zerkleinerung von sproedem mahlgut |
DE3843338A1 (de) * | 1988-12-22 | 1990-06-28 | Krupp Polysius Ag | Sichter |
DE4005323A1 (de) * | 1990-02-20 | 1991-08-22 | Krupp Polysius Ag | Verfahren und mahlanlage zur zweistufigen zerkleinerung von sproedem mahlgut |
JPH089016B2 (ja) * | 1991-05-14 | 1996-01-31 | 川崎重工業株式会社 | 竪型ローラミルによる粉砕装置および粉砕方法 |
ES2064245B1 (es) * | 1991-12-06 | 1997-10-16 | Standart 90 | Metodo y aparato polivalente para la molienda de material solido. |
DE4140549A1 (de) * | 1991-12-09 | 1993-06-17 | Krupp Polysius Ag | Walzenmuehle |
DE4303987A1 (de) * | 1993-02-11 | 1994-08-18 | Kloeckner Humboldt Deutz Ag | Mahlverfahren und zugehörige Mahlanlage |
DE4307230A1 (de) * | 1993-03-08 | 1994-09-15 | Krupp Polysius Ag | Verfahren und Anlage zur Gutbettzerkleinerung von sprödem Mahlgut |
DE4337215A1 (de) * | 1993-10-30 | 1995-05-04 | Kloeckner Humboldt Deutz Ag | Umlaufmahlanlage |
DE4443479A1 (de) * | 1994-12-07 | 1996-06-13 | Kloeckner Humboldt Deutz Ag | Kreislaufmahlanlage |
DE19512509B4 (de) * | 1995-04-04 | 2009-07-30 | Polysius Ag | Verfahren zur Zerkleinerung von Erzmaterial |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD220510A1 (de) * | 1984-01-09 | 1985-04-03 | Dessau Zementanlagenbau Veb | Verfahren und anlage zur feinzerkleinerung fester, mineralischer rohstoffe |
DE3407535A1 (de) * | 1984-03-01 | 1985-09-05 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Einrichtung zur selbsttaetigen regelung der durchsatzleistung bei der zweistufigen zerkleinerung sproeder materialien |
EP0084383B1 (fr) * | 1983-01-24 | 1986-06-18 | Klöckner-Humboldt-Deutz Aktiengesellschaft | Procédé de broyage continu par compression de matériau friable |
DE3520069A1 (de) * | 1985-06-04 | 1986-12-04 | Krupp Polysius Ag, 4720 Beckum | Verfahren und anlage zur zweistufigen zerkleinerung |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2160540C3 (de) * | 1971-12-07 | 1980-03-20 | Ruhrkohle Ag, 4300 Essen | Verfahren und Einrichtung zur Entstaubung von Steinkohle im Windsichter |
SE410561B (sv) * | 1973-04-13 | 1979-10-22 | Boliden Ab | Anleggning for autogen eller semiautogen malning av styckeformigt material, serskilt malm |
DE3506486A1 (de) * | 1985-02-23 | 1986-08-28 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Einrichtung zur zerkleinerung und mahlung sproeden mahlgutes wie zum beispiel zementklinker, erz, kohle oder dergleichen |
-
1986
- 1986-12-23 DE DE19863644341 patent/DE3644341A1/de not_active Withdrawn
-
1987
- 1987-11-25 EP EP87117375A patent/EP0273198B1/fr not_active Expired - Lifetime
- 1987-11-25 ES ES87117375T patent/ES2020252B3/es not_active Expired - Lifetime
- 1987-11-25 DE DE8787117375T patent/DE3767990D1/de not_active Expired - Fee Related
- 1987-12-01 CA CA000553271A patent/CA1284976C/fr not_active Expired - Fee Related
- 1987-12-10 US US07/131,035 patent/US4783011A/en not_active Expired - Fee Related
- 1987-12-15 JP JP62317264A patent/JPS63166442A/ja active Granted
- 1987-12-23 BR BR8707014A patent/BR8707014A/pt not_active IP Right Cessation
- 1987-12-23 KR KR870014778A patent/KR880007128A/ko not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0084383B1 (fr) * | 1983-01-24 | 1986-06-18 | Klöckner-Humboldt-Deutz Aktiengesellschaft | Procédé de broyage continu par compression de matériau friable |
DD220510A1 (de) * | 1984-01-09 | 1985-04-03 | Dessau Zementanlagenbau Veb | Verfahren und anlage zur feinzerkleinerung fester, mineralischer rohstoffe |
DE3407535A1 (de) * | 1984-03-01 | 1985-09-05 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Einrichtung zur selbsttaetigen regelung der durchsatzleistung bei der zweistufigen zerkleinerung sproeder materialien |
DE3520069A1 (de) * | 1985-06-04 | 1986-12-04 | Krupp Polysius Ag, 4720 Beckum | Verfahren und anlage zur zweistufigen zerkleinerung |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9067213B2 (en) | 2008-07-02 | 2015-06-30 | Buhler Ag | Method for producing flour and/or semolina |
US10981177B2 (en) | 2008-07-02 | 2021-04-20 | Bühler AG | Apparatus and method for producing flour and/or semolina |
Also Published As
Publication number | Publication date |
---|---|
JPH0353020B2 (fr) | 1991-08-13 |
DE3767990D1 (de) | 1991-03-14 |
CA1284976C (fr) | 1991-06-18 |
EP0273198B1 (fr) | 1991-02-06 |
JPS63166442A (ja) | 1988-07-09 |
EP0273198A3 (en) | 1989-08-16 |
KR880007128A (ko) | 1988-08-26 |
US4783011A (en) | 1988-11-08 |
ES2020252B3 (es) | 1991-08-01 |
BR8707014A (pt) | 1988-08-09 |
DE3644341A1 (de) | 1988-07-07 |
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