EP0272485B1 - 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
EP0272485B1
EP0272485B1 EP87117376A EP87117376A EP0272485B1 EP 0272485 B1 EP0272485 B1 EP 0272485B1 EP 87117376 A EP87117376 A EP 87117376A EP 87117376 A EP87117376 A EP 87117376A EP 0272485 B1 EP0272485 B1 EP 0272485B1
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EP
European Patent Office
Prior art keywords
mill
tailings
roll mill
delivered
fresh material
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
EP87117376A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0272485A3 (en
EP0272485A2 (de
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 EP0272485A2 publication Critical patent/EP0272485A2/de
Publication of EP0272485A3 publication Critical patent/EP0272485A3/de
Application granted granted Critical
Publication of EP0272485B1 publication Critical patent/EP0272485B1/de
Anticipated expiration legal-status Critical
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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 4) 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 3 that results in the overall system as high as possible energy savings or 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 2 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.
  • 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 (ie the sum of the withdrawals from the storage containers 7, 8, 9) Amount of regrind).
  • the controller 22 is connected to the drives of the dosing belt scales 10, 11, 12 via a switching element 24.
  • a second control circuit contains a measuring device 19 for determining the quantity of semolina fed to the roller mill 1, a computing element 20 and a regulator 21.
  • the first regulator 20 is supplied with a signal by the summing element 23 which corresponds to the current quantity of fresh material. He also receives a predetermined target value (26) for the sum of the quantity of fresh material and the quantity of semolina returned to the roller mill. From this, the computing element 20 forms a target value for the quantity of semolina returned to the roller mill. This setpoint is fed to the second controller 21.
  • the controller 21 receives a signal from the measuring device 19, which corresponds to the quantity of semolina returned to the roller mill 1. From this, the controller 21 forms a control signal which is fed to the servomotor 5 of the control flap 6.
  • 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 function of the system is as follows: 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 dependent on the total amount of semolina obtained during the screening is regulated in such a way that the sum of the quantity of fresh material and the total amount of semolina of the mill 2 remains constant.
  • the amount of semolina obtained during the screening is divided between the partial streams fed to the roller mill 1 and the second mill 2 in such a way that the total amount of fresh material and the amount of semolina fed to the roller mill remains constant.
  • the roller mill 1 is therefore operated with a constant amount of material per unit time (t / h).
  • the roller mill 1 expediently runs at a constant speed.
  • the device 25 sends a signal to the switching element 24 and interrupts the above-described regulation of the quantity of fresh material depending on the total amount of semolina (ie the first control circuit) until the fill level of the mill 2 normalized again.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)
EP87117376A 1986-12-23 1987-11-25 Verfahren und Anlage zur zweistufigen Zerkleinerung von sprödem Mahlgut Expired - Lifetime EP0272485B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3644342 1986-12-23
DE19863644342 DE3644342A1 (de) 1986-12-23 1986-12-23 Verfahren und anlage zur zweistufigen zerkleinerung von sproedem mahlgut

Publications (3)

Publication Number Publication Date
EP0272485A2 EP0272485A2 (de) 1988-06-29
EP0272485A3 EP0272485A3 (en) 1989-08-16
EP0272485B1 true EP0272485B1 (de) 1992-09-30

Family

ID=6317130

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87117376A Expired - Lifetime EP0272485B1 (de) 1986-12-23 1987-11-25 Verfahren und Anlage zur zweistufigen Zerkleinerung von sprödem Mahlgut

Country Status (9)

Country Link
US (1) US4783012A (enrdf_load_stackoverflow)
EP (1) EP0272485B1 (enrdf_load_stackoverflow)
JP (1) JPS63166443A (enrdf_load_stackoverflow)
KR (1) KR950007584B1 (enrdf_load_stackoverflow)
BR (1) BR8707013A (enrdf_load_stackoverflow)
CA (1) CA1284975C (enrdf_load_stackoverflow)
DE (2) DE3644342A1 (enrdf_load_stackoverflow)
ES (1) ES2035020T3 (enrdf_load_stackoverflow)
IN (1) IN172197B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4425452A1 (de) * 1994-07-19 1996-01-25 Kloeckner Humboldt Deutz Ag Verfahren und Vorrichtung zur Desagglomeration von agglomeriertem Gut

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3815217A1 (de) * 1988-05-04 1989-11-16 Pfeiffer Christian Maschf Verfahren zur zerkleinerung von sproedem mahlgut
DE3843338A1 (de) * 1988-12-22 1990-06-28 Krupp Polysius Ag Sichter
DE8916267U1 (de) * 1989-02-20 1996-08-08 Klöckner-Humboldt-Deutz AG, 51063 Köln Sichter zum Sichten von körnigem Gut und Mahlanlage mit Einschaltung eines solchen Sichters
DE3921823A1 (de) * 1989-07-03 1991-01-17 Krupp Polysius Ag Verfahren und anlage zur zerkleinerung von mahlgut
DE4005323A1 (de) * 1990-02-20 1991-08-22 Krupp Polysius Ag Verfahren und mahlanlage zur zweistufigen zerkleinerung von sproedem mahlgut
DE4137199A1 (de) * 1991-11-12 1993-05-13 Krupp Polysius Ag Verfahren zur regelung einer umlauf-mahlanlage
DE4239602A1 (de) * 1992-11-25 1994-05-26 Krupp Polysius Ag Verfahren und Vorrichtung zur Zerkleinerung von 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
DE29508598U1 (de) * 1995-05-31 1995-08-24 Siemens AG, 80333 München Einrichtung zum Betrieb von Mahlanlagen in der Zementindustrie
JP2000176688A (ja) * 1998-12-16 2000-06-27 Matsushita Electric Ind Co Ltd 金属製廃製品の鋳物材料化方法とその装置及び該装置により得られる鋳物材料
SE527086C2 (sv) * 2004-05-13 2005-12-20 Procedo Entpr Etablissement Processsystem för framställning av en komposit av cementitmaterial med reducerade koldioxidemissioner
US7927417B2 (en) 2008-02-04 2011-04-19 Capitol Aggregates, Ltd. Cementitious composition and apparatus and method for manufacturing the same
TR201809521T4 (tr) 2014-07-28 2018-07-23 Heidelbergcement Ag Çimento klinkeri öğütme yöntemi.
CN107399975B (zh) * 2017-07-07 2020-09-11 杭州富阳福士得食品有限公司 一种用于陶瓷原料磨碎设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1168221B (de) * 1960-03-26 1964-04-16 Elmkalk Und Zementwerke J Schn Verfahren zur automatischen Regelung von Zementmahlanlagen mit Grob- und Feinmuehle
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
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4425452A1 (de) * 1994-07-19 1996-01-25 Kloeckner Humboldt Deutz Ag Verfahren und Vorrichtung zur Desagglomeration von agglomeriertem Gut

Also Published As

Publication number Publication date
CA1284975C (en) 1991-06-18
IN172197B (enrdf_load_stackoverflow) 1993-05-01
BR8707013A (pt) 1988-08-09
ES2035020T3 (es) 1993-04-16
US4783012A (en) 1988-11-08
KR950007584B1 (ko) 1995-07-12
JPS63166443A (ja) 1988-07-09
EP0272485A3 (en) 1989-08-16
KR880007129A (ko) 1988-08-26
DE3644342A1 (de) 1988-07-07
EP0272485A2 (de) 1988-06-29
DE3782016D1 (de) 1992-11-05

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