EP1818101A2 - Laminoir - Google Patents

Laminoir Download PDF

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Publication number
EP1818101A2
EP1818101A2 EP07007982A EP07007982A EP1818101A2 EP 1818101 A2 EP1818101 A2 EP 1818101A2 EP 07007982 A EP07007982 A EP 07007982A EP 07007982 A EP07007982 A EP 07007982A EP 1818101 A2 EP1818101 A2 EP 1818101A2
Authority
EP
European Patent Office
Prior art keywords
roller
roll
rolling mill
mill according
axis
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
Application number
EP07007982A
Other languages
German (de)
English (en)
Other versions
EP1818101A3 (fr
EP1818101B1 (fr
Inventor
Erfindernennung liegt noch nicht vor Die
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.)
Buehler AG
Original Assignee
Buehler 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 Buehler AG filed Critical Buehler AG
Publication of EP1818101A2 publication Critical patent/EP1818101A2/fr
Publication of EP1818101A3 publication Critical patent/EP1818101A3/fr
Application granted granted Critical
Publication of EP1818101B1 publication Critical patent/EP1818101B1/fr
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
    • B02C4/40—Detachers, e.g. scrapers
    • 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
    • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
    • B02C4/04—Crushing or disintegrating by roller mills with two or more rollers specially adapted for milling paste-like material, e.g. paint, chocolate, colloids
    • 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
    • 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
    • B02C4/44—Cooling or heating rollers or bars

Definitions

  • the invention relates to a rolling mill, in particular a three-roll mill, for the comminution and homogenization of viscous masses, in particular for dispersing and uniform distribution in a binder of suspended solid particles.
  • a rolling mill has at least two rollers mounted rotatably about their longitudinal axes, wherein the axis of rotation of the first roller is mounted in a stationary manner and the axis of rotation of a second roller is movably mounted.
  • at least one pressing device is a pressing of at least one roller against the other.
  • the invention has for its object to provide a rolling mill of the aforementioned basic type, which allows an improvement in product quality and thereby avoids product inhomogeneities by better grinding.
  • the avoidance of product inhomogeneities by z. B. undispersed oversize grain is achieved by a rolling mill with the features of claim 1.
  • the back roll or take-off roll intended for product removal has a shorter axial process length than the middle roll and is axially disposed relative to the middle roll such that the ends of the process length of the center roll over both ends of the process length of the back roll and take-off roll, respectively protrude axially.
  • This has the advantage that during operation of the rolling mill unrug or inadequately rubbed, i. does not get too coarse product from the middle roll on the rear roller or take-off roll. This measure therefore allows an improvement in product quality, i. achieve a more consistent product fineness, undefined edge effects are avoided.
  • the roll surfaces or process surfaces are preferably formed from a metal-free ceramic material, wherein the rolls preferably have a ceramic cylinder fitted onto a hollow metal cylinder. This will remove any metallic contamination of the product during its comminution due to roll abrasion locked out. This is especially important in the processing of pastes for applications in electronics and for the manufacture of insulator bodies based on fine ceramics.
  • the rolling mill according to the invention is a so-called "three-roll mill” with three rollers lying parallel to one another.
  • the axis of rotation of the middle roller is fixedly mounted, while the axis of rotation of the front roller or feed roller and the axis of rotation of the rear roller or take-off roller are movably mounted.
  • it has a front mechanical-pneumatic pressing device for pressing the front roller against the central roller and a rear mechanical-pneumatic pressing device for pressing the rear roller against the central roller.
  • two nips are available.
  • the subtask of an improved cooling effect are in the rolling mill or three-rolling mill a first plane, which is defined by the axis of rotation of the front roller and feed roller and by the axis of rotation of the middle roller, and a second plane which by the axis of rotation of the central roller and defined by the axis of rotation of the rear roller or acceptance roller is inclined at an angle between about 10 ° and a maximum of 90 ° to each other, wherein in particular the first plane is horizontal, while the second plane extends obliquely upward (in Side view L-shaped arrangement of the rollers).
  • the angle is 30 ° to 60 ° and more preferably about 45 °.
  • the rollers are cooled from the inside. This is e.g. important in the processing of organic pigments, especially some yellow pigments.
  • both the front roller and the rear roller are pressed by means of a mechanical-pneumatic pressing device against the middle roller.
  • a mechanical-pneumatic pressing device has a control for gap adjustment. Since the force transducer, as explained above, allows a "force transmission” and a "path reduction", the relatively weak force of a pneumatic for the purpose of roll pressing can be multiplied and at the same time greatly increased by the pneumatics accuracy for the gap adjustment.
  • a scraper is applied to the take-off roll, over which the comminuted homogenized mass is stripped off, the scraper preferably also consisting of a metal-free material, in particular of a ceramic material or of a polymer material. This also eliminates any metallic contamination of the product during its stripping from the pickup roller due to wiper abrasion.
  • At least the catchment area of the rolling mill is covered by a top. This prevents unwanted contaminants from entering the product from the factory floor and, vice versa, prevents unwanted volatile product components from escaping into the factory floor.
  • a top This prevents unwanted contaminants from entering the product from the factory floor and, vice versa, prevents unwanted volatile product components from escaping into the factory floor.
  • the space under the hood is connected to a gas vent.
  • volatile substances contained in the solvent of the product are kept away from the air of a factory floor.
  • FIG. 1 and in FIG. 2 A first embodiment of the rolling mill according to the invention is shown in FIG. 1 and in FIG. 2.
  • the three-roll mill shown here contains three rollers 1, 2, 3, which are aligned parallel to each other and all arranged in a plane E.
  • the rotational axis A1 of the front roller 1, the rotational axis A2 of the middle roller 2 and the rotational axis A3 of the rear roller 3 are parallel to each other (see Fig. 2) and are all in one and the same plane E.
  • the Front roller 1 and the rear roller 3 are pressed by means of a front pressing device 4 and by means of a rear pressing device 5 respectively against the central roller 2, whose axis of rotation A2 is mounted stationary.
  • the front roller 1 and the rear roller 3 are movably supported, i. their axes of rotation A1 and A3 can be pivoted about a pivot axis D3.
  • the lateral surfaces of the rollers 1, 2, 3 each represent the roller process surface S1, S2, S3, which come into contact with the product to be processed.
  • a nip is formed during operation by the product passing between the rollers 1 and 2 pressed against each other.
  • a nip is formed between the process surface S3 of the rear roller 3 and the process surface S2 of the middle roller 2 in operation by the product passing between the rollers 2 and 3 pressed against each other.
  • the front pressing device 4 and the rear pressing device 5 each have a force converter 6 and a pneumatic drive 7.
  • the force transducer is a toggle lever 6, which consists of a first lever 6A and a second lever 6B, while the pneumatic actuator 7 is constituted by a pneumatic cylinder 7A and a pneumatic piston 7B.
  • the power flow of the pressing devices 4 and 5 is based on the pneumatic piston 7B mounted in the pneumatic cylinder 7A, which is articulated via a piston rod to the first lever 6A on a hinge axis D1.
  • the first lever 6A is articulated to a second hinge axis D2 on the second lever 6B, which in turn is articulated to a pivot axis D3 and each forms a pivotable suspension and mounting of the front roller 1 and the rear roller 3.
  • the toggle lever 6A, 6B serving as force transducer 6 and roller suspension effects an increase in the pneumatic force of the pneumatic drive 7 by a factor of about 20 to 50, this increased force being used for roller pressing.
  • this force transducer 6 causes a reduction of the stroke traveled by the pneumatic drive 7 by a factor of about 1/50 to 1/20, using this reduced stroke for gap adjustment.
  • rollers 1, 2 and 3 are driven by the motor M by gears (not shown).
  • the roller block 1, 2, 3 and the engine block M are surrounded by a housing G.
  • the rear roller 3 is arranged axially with respect to the middle roller 2 such that the ends of the process length L2 of the middle roller 2 project axially beyond the ends of the process length L3 of the rear roller 3 on both sides. This ensures that unrestricted or insufficiently rubbed product from the middle roll 2 does not reach the rear roll 3 during operation of the three-roll mill, whereby a significant improvement in product quality can be achieved.
  • FIG. 3 A second embodiment of the rolling mill according to the invention is shown in FIG. 3 and in FIG. 4.
  • the three-roll mill shown here comprises three rollers 1 ', 2', 3 'which Although they are aligned parallel to each other, but not all are arranged in one and the same plane. Rather, the axis of rotation A1 'of the front roller 1' and the axis of rotation A2 'of the central roller 2' are arranged in a first plane E1, while the axis of rotation A3 'of the rear roller 3' and the axis of rotation A2 'of the central roller 2' in one second plane E2 are arranged, which forms an angle of about 45 ° to the first plane E1.
  • This arrangement of the three rollers 1 ', 2', 3 ' allows the present as a viscous mass product with the solid particles distributed in it (eg pigments) during its passage through the rolling mill longer and thus can be cooled more than in an arrangement, in which the axes of rotation of the front, the middle and the rear roller lie in one plane.
  • FIG. 4 is a plan view of the rollers 1 ', 2', 3 'of the second embodiment of the rolling mill according to the invention shown in FIG.
  • the rear roller or take-off roller 3' has a significantly shorter process length L3 ' ⁇ L2'
  • the rear roller 3 ' is also axially arranged with respect to the middle roller 2' such that the ends of the process length L2 'of the middle roller 2' axially protrude beyond the ends of the process length L3 'of the rear roller 3' on both sides.
  • this ensures that in the operation of the three-roll mill no unrestrained or only insufficiently rubbed product from the middle roll 2 'reaches the rear roll 3', whereby the product quality is improved.
  • the path traveled by the product as it passes through the rolling mill according to the second embodiment is increased by the two additional circular arc lengths on the surfaces S2 'and S3' of the rollers 2 'and 3' of radius R, which are defined by the angle ⁇ between level E1 and level E2, ie an additional path compared to the first embodiment (Fig. 1) by 2 x ⁇ x R.
  • This product trough increases with its addition to the usual wedge seals provided Aufsetzkeilen the tightness and thus ensures a lower lateral product loss.
  • a scraper 9 with a scraper blade is used to remove the product from the rear roller 3 '.
  • the scraper 9 is equipped with an automatic knife adjustment, which is controlled by a PLC control.
  • roller surfaces S1, S2, S3, S1 ', S2', S3 ' may be made of ceramic material.
  • the scraper 9 shown in Fig. 3 may also be made of ceramic material or of polymer material. These or other metal-free materials for the roller process surfaces and the doctor blade are of particular interest for the processing of pastes for the electronics industry.
  • the ceramic rolls are rounded at the end of the roll process length.
  • the pneumatic drive 7 operates e.g. with pressures of up to 4 bar, which come by means of the force transducer 6 to the required line pressures in the nips.
  • the force transducer 6 makes it possible to increase the pressing force acting on the rollers by the roller press devices 4, 5 by a factor of about 10 to about 80. Accordingly, by reducing the stroke provided by the pneumatic drive 7 by means of the force transducer, the accuracy of the gap adjustment is about the same Factor increased.
  • the rolls have a diameter of 300 mm and the rear roll 3, 3 'is shorter by about 4 mm to 5 mm than the middle roll 2, 2'. This ensures that the wiper 9 strips only rubbed product from the rear roller 3 '.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Press Drives And Press Lines (AREA)
  • Accessories For Mixers (AREA)
EP07007982A 2004-10-26 2005-09-12 Laminoir Expired - Lifetime EP1818101B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004052084.4A DE102004052084B4 (de) 2004-10-26 2004-10-26 Walzwerk
EP05777390A EP1809421A1 (fr) 2004-10-26 2005-09-12 Laminoir

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP05777390A Division EP1809421A1 (fr) 2004-10-26 2005-09-12 Laminoir

Publications (3)

Publication Number Publication Date
EP1818101A2 true EP1818101A2 (fr) 2007-08-15
EP1818101A3 EP1818101A3 (fr) 2008-01-23
EP1818101B1 EP1818101B1 (fr) 2009-08-12

Family

ID=35079468

Family Applications (3)

Application Number Title Priority Date Filing Date
EP07007982A Expired - Lifetime EP1818101B1 (fr) 2004-10-26 2005-09-12 Laminoir
EP05777390A Withdrawn EP1809421A1 (fr) 2004-10-26 2005-09-12 Laminoir
EP07007983A Withdrawn EP1818102A3 (fr) 2004-10-26 2005-09-12 Laminoir

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP05777390A Withdrawn EP1809421A1 (fr) 2004-10-26 2005-09-12 Laminoir
EP07007983A Withdrawn EP1818102A3 (fr) 2004-10-26 2005-09-12 Laminoir

Country Status (11)

Country Link
US (3) US20070245788A1 (fr)
EP (3) EP1818101B1 (fr)
JP (3) JP2008517746A (fr)
CN (3) CN101048231B (fr)
AT (1) ATE439189T1 (fr)
BR (1) BRPI0518381A2 (fr)
CA (1) CA2585305A1 (fr)
DE (2) DE102004052084B4 (fr)
ES (1) ES2330265T3 (fr)
TW (1) TW200624176A (fr)
WO (1) WO2006045206A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105080697A (zh) * 2015-09-30 2015-11-25 中国振华集团云科电子有限公司 三辊轧机防护装置

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DE102004052084B4 (de) * 2004-10-26 2016-10-27 Bühler AG Walzwerk
US20090127362A1 (en) * 2007-11-16 2009-05-21 Flsmidth A/S Roller mill for comminuting solid materials
DE102008001271A1 (de) * 2008-04-18 2009-10-22 Bühler AG Verfahren zur Verarbeitung einer Lebensmittelmasse
JP4956482B2 (ja) * 2008-05-15 2012-06-20 株式会社井上製作所 ロールミル
JP5691215B2 (ja) * 2010-03-26 2015-04-01 住友ベークライト株式会社 粉砕装置
US10159985B2 (en) * 2011-05-12 2018-12-25 Bühler AG Device and method for comminuting particles in liquid material
CN102350390B (zh) * 2011-09-01 2015-02-25 洁星环保科技投资（上海）有限公司 一种多辊研磨机
CN102441459A (zh) * 2011-12-14 2012-05-09 吴江市冰心文教用品有限公司 一种三辊研磨机
DE102013010220A1 (de) * 2013-06-18 2014-12-18 Khd Humboldt Wedag Gmbh Hochdruck-Walzenpresse mit Pendelaufhängung
CN104549637A (zh) * 2015-01-09 2015-04-29 张文启 一种双杠杆破碎机
DE102015114998B4 (de) 2015-09-07 2019-05-09 Mbe Coal & Minerals Technology Gmbh Rollenpresse
DE102015114992B4 (de) * 2015-09-07 2017-07-20 Mbe Coal & Minerals Technology Gmbh Rollenpresse
BR112018010702B1 (pt) * 2015-11-26 2021-09-28 Omas Srl Laminador com motores de acionamento direto
CN105498896B (zh) * 2016-01-06 2017-11-14 常州市龙鑫化工机械有限公司 辊筒间间隙与压力可控的辊压机
CN106269048B (zh) * 2016-08-24 2018-11-13 南通诺佰恩化工科技有限公司 控制三辊机研磨温度系统装置
JP6876896B2 (ja) * 2017-11-06 2021-05-26 アイメックス株式会社 移動ロールの位置調整装置及び同装置を備えたロールミル
CN108080075A (zh) * 2017-12-12 2018-05-29 浙江凯盈新材料有限公司 一种银浆的碾磨装置
CN109331982A (zh) * 2018-12-14 2019-02-15 东营市志达食品机械有限公司 一种坚果粉碎机
CN112774781A (zh) * 2020-12-09 2021-05-11 上海铸研重工科技有限公司 摆辊式制砂机
CN113210046B (zh) * 2021-03-31 2023-06-20 嘉世明(珠海)食品科技有限公司 一种不等径三辊研磨机
IT202100027116A1 (it) * 2021-10-21 2023-04-21 Koerber Tech S P A Apparato per formare un foglio di materiale comprendente sostanze vegetali e/o alcaloidi
CN118807947B (zh) * 2024-09-20 2024-12-10 安康飞跃魔芋食品有限公司 一种魔芋制浆设备
CN120861199B (zh) * 2025-09-26 2025-11-28 常州市龙鑫智能装备股份有限公司 辊筒间距和压力检测的联动调节机构、调节方法及三辊机

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CN105080697A (zh) * 2015-09-30 2015-11-25 中国振华集团云科电子有限公司 三辊轧机防护装置

Also Published As

Publication number Publication date
EP1818101A3 (fr) 2008-01-23
CN101048231B (zh) 2011-08-31
EP1809421A1 (fr) 2007-07-25
ES2330265T3 (es) 2009-12-07
CN101048231A (zh) 2007-10-03
DE102004052084A1 (de) 2006-12-28
WO2006045206A1 (fr) 2006-05-04
US20070245793A1 (en) 2007-10-25
JP2007301564A (ja) 2007-11-22
US20070245788A1 (en) 2007-10-25
EP1818101B1 (fr) 2009-08-12
US20070235575A1 (en) 2007-10-11
EP1818102A2 (fr) 2007-08-15
CN101091930B (zh) 2010-10-27
EP1818102A3 (fr) 2008-01-23
CA2585305A1 (fr) 2006-05-04
CN101091929A (zh) 2007-12-26
BRPI0518381A2 (pt) 2008-11-18
CN101091930A (zh) 2007-12-26
JP4804428B2 (ja) 2011-11-02
JP2008517746A (ja) 2008-05-29
JP2007301563A (ja) 2007-11-22
DE502005007907D1 (de) 2009-09-24
ATE439189T1 (de) 2009-08-15
TW200624176A (en) 2006-07-16
DE102004052084B4 (de) 2016-10-27

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