EP0320853A2 - Broyeur à cylindres por le broyage en lit de matière - Google Patents

Broyeur à cylindres por le broyage en lit de matière Download PDF

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Publication number
EP0320853A2
EP0320853A2 EP88120745A EP88120745A EP0320853A2 EP 0320853 A2 EP0320853 A2 EP 0320853A2 EP 88120745 A EP88120745 A EP 88120745A EP 88120745 A EP88120745 A EP 88120745A EP 0320853 A2 EP0320853 A2 EP 0320853A2
Authority
EP
European Patent Office
Prior art keywords
roller
throttle
controller
roll mill
mill according
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Withdrawn
Application number
EP88120745A
Other languages
German (de)
English (en)
Other versions
EP0320853A3 (fr
Inventor
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 EP0320853A2 publication Critical patent/EP0320853A2/fr
Publication of EP0320853A3 publication Critical patent/EP0320853A3/fr
Withdrawn legal-status Critical Current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
    • B02C4/32—Adjusting, applying pressure to, or controlling the distance between, milling members

Definitions

  • the invention relates to a material bed roller mill (corresponding to the preamble of claim 1) and a method (corresponding to the preamble of claim 12 for comminuting brittle regrind.
  • Gutbett roller mills contain two horizontally arranged driven rollers that are pressed against each other at high pressure. The material is largely shredded as it passes through the nip, agglomerates (slugs) are formed which already contain a high proportion of the finished product and which are then broken down in a downstream unit with low energy consumption. Gutbett roll mills of this type, as are known in particular from DE-PS 27 08 053, enable considerable energy savings in the comminution of brittle regrind, such as cement clinker and the like.
  • the invention is therefore based on the object of designing a material bed roller mill in the preamble of claim 1 or a method according to the preamble of claim 12, that the formation of disturbing resonance vibrations is avoided.
  • the longitudinal vibrations of the idler roll running transverse to the nip are damped. If a hydraulic gas spring system is used to press the idler roller with high pressure in the direction of the fixed roller, the damping can take place with the aid of a throttle which is arranged in the hydraulic line between the gas spring and the hydraulic cylinder.
  • the damping effect that can be achieved by means of such a choke has been clearly and reproducibly proven in tests. It enables reliable prevention of harmful resonance peaks and constant resonance vibrations in a simple and cost-saving manner.
  • the measure according to the invention makes it possible to safely operate a material bed roller mill even in critical cases, in particular with a high proportion of semolina.
  • the material bed roller mill schematically illustrated in FIG. 1 contains two horizontally arranged, driven rollers 1, 2, of which the roller 1 is designed as a fixed roller and the roller 2 as a loose roller, which is arranged within the mill housing 3 transversely to the roller gap 4, i. H. is movable in the direction of the double arrow 5.
  • a hydraulic gas spring system is provided, the hydraulic cylinder which contains 6, 7, a hydraulic pump 8 and a gas spring 9. Hydraulic cylinders and gas springs are arranged at both ends of the roller 2 in order to achieve a parallel displacement of the roller 2 transversely to the nip 4.
  • the check valve 13 opens when the gas spring 9 relaxes.
  • the check valve 14 opens when the gas spring 9 is compressed.
  • a single throttle 11 is present in the hydraulic line 10 between the hydraulic cylinder 6 or 7 and gas spring 9. This results in symmetrical damping in both vibration directions.
  • measures are also provided for assigning a controller 15 to the throttle 11 arranged in the hydraulic line 10 or each throttle, which forms an essential part of the damping device, which is provided with at least one vibration measuring device provided on or in the roller mill is connected, as indicated in FIGS. 1 and 3 at 16.
  • This vibration measuring device 16 can be, for example, a travel, force, torque, acceleration measuring device or the like which is known per se.
  • a suitable, known actuator 18 for the throttle is preferably arranged in the connection control line 17, indicated by dashed lines in FIG. 3, between the controller 15 and the throttle 11.
  • This control connection (vibration measuring device 16 - controller 15 - actuator 18 - throttle 11) is such that measurement signals generated by the vibration measuring device 16 and representing the vibration state of the roller mill can be fed to the controller 15 and the throttle effect of the throttle 11 via this controller 15 to the respective vibration state the roller mill can be adjusted.
  • the vibration state of the roller mill can be detected quickly and the throttling effect of the throttle 11 can be adapted to the respective vibration state of the roller mill in the required manner even in the case of extreme vibrations, that is to say, for. B. with particularly large amplitudes of the loose roller movement when the two rollers move together quickly, so that there can be no underpressure (underpressure) of the ground material at any point in the size reduction.
  • the controller 15 for the throttle 11 can be designed in any suitable manner, for example, as is known per se, as a continuously operating controller or also as a step-by-step controller, preferably a two-position controller.
  • a check valve 14 is arranged parallel to the throttle 11, which opens when the gas spring 9 is released. In this case, damping takes place only when the gas spring is compressed.
  • Fig. 6 also shows a variant in which the series connection of a throttle 12 and a check valve 14 is arranged parallel to the throttle 11, which opens when the gas spring 9 is released. This results in a stronger damping when compressing than when relaxing the gas spring.
  • FIG. 7 shows yet another variant for regulation in the region of the throttle 11 in adaptation to the respective vibration state of the roller mill.
  • the controller 15 is no longer connected to the throttle 11 directly, as in FIG. 3, but in the area of the throttle 11 a control bypass line 19 is provided which is independent of the first bypass line containing the check valve 14 and bypasses this throttle 11.
  • This control bypass line 19 contains a solenoid valve 20 which opens or closes this bypass line 19 as a function of the vibration state measured by the vibration measuring device 16 and further processed by the controller 15.
  • the controller 15 can be a simple two-point controller (in the simplest case a relay).
  • This embodiment according to FIG. 7 can be implemented particularly easily, although it must also be taken into account that it is generally particularly expedient that a vibration measuring device (vibration monitor) 16 is in principle a component of the roller mill equipment.
  • the controller 15 connected to the vibration measuring device 16 thus ensures that a correspondingly large throttling effect is achieved with particularly high vibrations; if there are no vibrations, there is also no need for a throttling effect.
  • the vibration measuring device 16 can be attached to at least one of the bearing stones for the idler roller 2 or to a corresponding torque arm.
  • the damping device can be formed by a separate shock absorber, which acts on the idler roller and / or the device generating the pressure in the nip.
  • a shock absorber can work with fluid friction, gas friction, mechanical friction and / or with eddy current generation. It is also advantageous if the drive trains of the two rollers are made as hard or stiff as possible.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
EP88120745A 1987-12-18 1988-12-12 Broyeur à cylindres por le broyage en lit de matière Withdrawn EP0320853A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873743141 DE3743141A1 (de) 1987-12-18 1987-12-18 Gutbett-walzenmuehle
DE3743141 1987-12-18

Publications (2)

Publication Number Publication Date
EP0320853A2 true EP0320853A2 (fr) 1989-06-21
EP0320853A3 EP0320853A3 (fr) 1990-01-24

Family

ID=6343012

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88120745A Withdrawn EP0320853A3 (fr) 1987-12-18 1988-12-12 Broyeur à cylindres por le broyage en lit de matière

Country Status (3)

Country Link
EP (1) EP0320853A3 (fr)
DE (1) DE3743141A1 (fr)
ZA (1) ZA889337B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2692171A1 (fr) * 1992-06-16 1993-12-17 Broyeurs Poittemill Sa Perfectionnements aux procédés et dispositifs de broyage de matières solides, tels que des minerais.
EP0658377A1 (fr) * 1993-12-15 1995-06-21 Broyeurs Poittemill S.A. Perfectionnements aux procédés et dispositifs de broyage de matières solides, tels que des minerais
WO2012146446A1 (fr) * 2011-04-26 2012-11-01 Khd Humboldt Wedag Gmbh Procédé de régulation de la pression d'emprise d'une presse à laminer
CN111822093A (zh) * 2020-08-12 2020-10-27 中山德马克环保科技有限公司 一种咬合间距自适应的咬合辊
WO2021209236A1 (fr) * 2020-04-17 2021-10-21 Khd Humboldt Wedag Gmbh Procédé de régulation de l'amortissement du mouvement d'un rouleau presseur d'une presse à rouleaux haute pression et presse à rouleaux haute pression correspondante

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3930773A1 (de) * 1989-09-14 1991-03-28 Krupp Industrietech Walzenbrecher mit fest- und loswalze
CN115254278B (zh) * 2022-08-25 2023-10-03 平湖南方水泥有限公司 一种水泥粉磨站联合辊压机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1927164A1 (de) * 1969-05-28 1970-12-03 Alpine Ag Walzenmuehle zur Feinmahlung
DE2708053A1 (de) * 1977-02-24 1978-09-07 Klaus Prof Dr Ing Schoenert Verfahren zur fein- und feinstzerkleinerung von materialien sproeden stoffverhaltens
DE2540269B2 (de) * 1975-09-10 1980-12-18 Kloeckner-Humboldt-Deutz Ag, 5000 Koeln Einstellbare Stützvorrichtung für die Loswalze einer Walzenmühle
DE3224249A1 (de) * 1981-07-16 1983-01-27 Giacomo 17047 Vado Ligure Savona Ferrero Walzenmuehle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1083104B (de) * 1955-11-26 1960-06-09 Buehler Ag Geb Hydraulische Anpressvorrichtung fuer Walzwerke
DE1036801B (de) * 1957-03-09 1958-08-21 Kleinewefers Soehne J Ausgleichseinrichtung fuer die Druckhydraulik an Kalandern
DE3238630A1 (de) * 1982-10-19 1984-04-19 Karl Händle & Söhne Maschinenfabrik u. Eisengießerei, GmbH & Co KG, 7130 Mühlacker Maschine zum zerkleinern von gut, insbesondere von keramischem oder aehnlichem mahlgut

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1927164A1 (de) * 1969-05-28 1970-12-03 Alpine Ag Walzenmuehle zur Feinmahlung
DE2540269B2 (de) * 1975-09-10 1980-12-18 Kloeckner-Humboldt-Deutz Ag, 5000 Koeln Einstellbare Stützvorrichtung für die Loswalze einer Walzenmühle
DE2708053A1 (de) * 1977-02-24 1978-09-07 Klaus Prof Dr Ing Schoenert Verfahren zur fein- und feinstzerkleinerung von materialien sproeden stoffverhaltens
DE3224249A1 (de) * 1981-07-16 1983-01-27 Giacomo 17047 Vado Ligure Savona Ferrero Walzenmuehle

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2692171A1 (fr) * 1992-06-16 1993-12-17 Broyeurs Poittemill Sa Perfectionnements aux procédés et dispositifs de broyage de matières solides, tels que des minerais.
EP0658377A1 (fr) * 1993-12-15 1995-06-21 Broyeurs Poittemill S.A. Perfectionnements aux procédés et dispositifs de broyage de matières solides, tels que des minerais
WO2012146446A1 (fr) * 2011-04-26 2012-11-01 Khd Humboldt Wedag Gmbh Procédé de régulation de la pression d'emprise d'une presse à laminer
CN103492079A (zh) * 2011-04-26 2014-01-01 Khd洪保德韦达克有限公司 用于调节辊压机的辊缝压力的方法
CN103492079B (zh) * 2011-04-26 2016-01-06 Khd洪保德韦达克有限公司 用于调节辊压机的辊缝压力的方法
US9498779B2 (en) 2011-04-26 2016-11-22 Khd Humboldt Wedag Gmbh Method for regulating the roll gap pressure of a roller press
WO2021209236A1 (fr) * 2020-04-17 2021-10-21 Khd Humboldt Wedag Gmbh Procédé de régulation de l'amortissement du mouvement d'un rouleau presseur d'une presse à rouleaux haute pression et presse à rouleaux haute pression correspondante
CN111822093A (zh) * 2020-08-12 2020-10-27 中山德马克环保科技有限公司 一种咬合间距自适应的咬合辊

Also Published As

Publication number Publication date
ZA889337B (en) 1989-08-30
DE3743141A1 (de) 1989-06-29
EP0320853A3 (fr) 1990-01-24

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