EP0273198B1 - Verfahren und Anlage zur zweistufigen Zerkleinerung von sprödem Mahlgut - Google Patents

Verfahren und Anlage zur zweistufigen Zerkleinerung von sprödem Mahlgut Download PDF

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Publication number
EP0273198B1
EP0273198B1 EP87117375A EP87117375A EP0273198B1 EP 0273198 B1 EP0273198 B1 EP 0273198B1 EP 87117375 A EP87117375 A EP 87117375A EP 87117375 A EP87117375 A EP 87117375A EP 0273198 B1 EP0273198 B1 EP 0273198B1
Authority
EP
European Patent Office
Prior art keywords
mill
roller mill
tailings
roller
delivered
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.)
Expired - Lifetime
Application number
EP87117375A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0273198A2 (de
EP0273198A3 (en
Inventor
Gotthardt Dipl.-Ing. Blasczyk
Norbert Dipl.-Ing. Patzelt
Heinz-Georg Dipl.-Ing. Mersmann
Hardy Dipl.-Ing. Kropf
Franz Josef Dipl.-Ing. Adrian
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Krupp Polysius AG
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 Krupp Polysius AG filed Critical Krupp Polysius AG
Publication of EP0273198A2 publication Critical patent/EP0273198A2/de
Publication of EP0273198A3 publication Critical patent/EP0273198A3/de
Application granted granted Critical
Publication of EP0273198B1 publication Critical patent/EP0273198B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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 regrind to be shredded is located in storage containers 7,8,9 9 (which are assigned to individual components, for example). It is fed to the roller mill 1 via metering belt weighers 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.
  • 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).
  • 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 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 setpoint).
  • 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)
EP87117375A 1986-12-23 1987-11-25 Verfahren und Anlage zur zweistufigen Zerkleinerung von sprödem Mahlgut Expired - Lifetime EP0273198B1 (de)

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 EP0273198A2 (de) 1988-07-06
EP0273198A3 EP0273198A3 (en) 1989-08-16
EP0273198B1 true EP0273198B1 (de) 1991-02-06

Family

ID=6317129

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87117375A Expired - Lifetime EP0273198B1 (de) 1986-12-23 1987-11-25 Verfahren und Anlage zur zweistufigen Zerkleinerung von sprödem Mahlgut

Country Status (8)

Country Link
US (1) US4783011A (es)
EP (1) EP0273198B1 (es)
JP (1) JPS63166442A (es)
KR (1) KR880007128A (es)
BR (1) BR8707014A (es)
CA (1) CA1284976C (es)
DE (2) DE3644341A1 (es)
ES (1) ES2020252B3 (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
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
KR101821088B1 (ko) 2008-07-02 2018-01-22 뷔흘러 에이지 가루 및/또는 세몰리나를 만드는 장치 및 방법

Family Cites Families (7)

* Cited by examiner, † Cited by third party
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
DE3302176A1 (de) * 1983-01-24 1984-07-26 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren und anlage zur kontinuierlichen druckzerkleinerung sproeden mahlgutes
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
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
DE3520069A1 (de) * 1985-06-04 1986-12-04 Krupp Polysius Ag, 4720 Beckum Verfahren und anlage zur zweistufigen zerkleinerung

Also Published As

Publication number Publication date
CA1284976C (en) 1991-06-18
US4783011A (en) 1988-11-08
KR880007128A (ko) 1988-08-26
JPS63166442A (ja) 1988-07-09
EP0273198A2 (de) 1988-07-06
EP0273198A3 (en) 1989-08-16
DE3767990D1 (de) 1991-03-14
DE3644341A1 (de) 1988-07-07
JPH0353020B2 (es) 1991-08-13
BR8707014A (pt) 1988-08-09
ES2020252B3 (es) 1991-08-01

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