WO2014202212A2 - Broyeur à cylindres permettant la comminution d'une matière à broyer cassante - Google Patents

Broyeur à cylindres permettant la comminution d'une matière à broyer cassante Download PDF

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Publication number
WO2014202212A2
WO2014202212A2 PCT/EP2014/001650 EP2014001650W WO2014202212A2 WO 2014202212 A2 WO2014202212 A2 WO 2014202212A2 EP 2014001650 W EP2014001650 W EP 2014001650W WO 2014202212 A2 WO2014202212 A2 WO 2014202212A2
Authority
WO
WIPO (PCT)
Prior art keywords
roll mill
grinding
mill according
longitudinal
roller
Prior art date
Application number
PCT/EP2014/001650
Other languages
German (de)
English (en)
Other versions
WO2014202212A3 (fr
Inventor
Nils Hörster
Daniel Frerich
Original Assignee
Thyssenkrupp Industrial Solutions 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 Thyssenkrupp Industrial Solutions Ag filed Critical Thyssenkrupp Industrial Solutions Ag
Publication of WO2014202212A2 publication Critical patent/WO2014202212A2/fr
Publication of WO2014202212A3 publication Critical patent/WO2014202212A3/fr

Links

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
    • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
    • 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 roller mill for crushing brittle grinding material with two counter-rotating and between them a grinding gap forming grinding rollers having a diameter of at least 1, 8 m and are supported on a machine frame, which is supported on a foundation.
  • roller mills for example limestone, do lomit or ore material can be crushed.
  • one of the two grinding rollers is supported as a fixed roller against an abutment, while the other roller is designed as a Loswalze and is in operative connection with a Anpresssystem.
  • contact pressures 50 MPa and more are generated.
  • the resulting forces are derived via a supported on a foundation machine frame having two longitudinal beams, which are firmly connected to each other via cross braces. In case of any misalignment of the grinding rollers occurring transverse forces are transmitted through these cross braces in the other longitudinal spar.
  • the machine frame is completely prefabricated and transported to the destination together with the roller units and bearing blocks. Since today's Maschmenrahmen for this purpose are built ever larger, they must be transported today already obliquely on special trucks, since the width of the machine frame transport problems caused by road and bridges. In grinding rolls with a diameter of for example 2 m, the machine frame has a dimension of 3 m to 4 m. In addition, correspondingly large machine tools are required for machining the entire machine frame.
  • the invention is now based on the object of specifying a machine frame for a roll mill, which can be produced and transported more cheaply.
  • the object is achieved by the features of claim 1 by the machine frame consists exclusively of two transverse to the grinding gap longitudinal beams.
  • the machine frame was always equipped with cross struts between the two longitudinal beams for all decades, it has now surprisingly been found that the lateral forces to be derived in the event of a misalignment can also be dissipated via the foundation on which the two longitudinal struts are mounted.
  • the transport problems are solved immediately, since the two spars can be transported independently.
  • the production is simplified, since smaller machine tools can be used to process the individual longitudinal bars.
  • the machine frame is significantly cheaper due to the significantly reduced material costs.
  • the two longitudinal shells can be manufactured from one piece or from several pieces.
  • a grinding roller is formed as a fixed roller and the other grinding roller as a Loswalze.
  • both grinding rollers may each be rotatably mounted in two jewels, wherein in each case one of the two jewels of a grinding roller are mounted on one of the two longitudinal beams and the other bearing block on the other longitudinal spar.
  • one of the two grinding rollers may be supported on at least one abutment, while the other grinding roller cooperates with a pressing device, wherein abutment and pressing device are mounted on the longitudinal beams.
  • the abutment can be formed for example by the jewels of one of the two grinding rollers or by a separate abutment.
  • a material bypass may be provided to Bypassgut, for example, material (excavator tooth), the Damage grinding rollers, are passed to the grinding rollers over.
  • the foundation has an opening underneath the grinding rollers for discharging the comminuted material to be ground. If a material bypass line is provided, it is expediently connected to this opening.
  • the Materialbypassieitung is guided directly behind the jewels of a grinding roller down so that the previously used machine frame would have to be performed under the Materialbypassieitung, the completion crossbar had to keep the access to the opening in the foundation for the bypass goods.
  • the longitudinal struts can now be formed correspondingly shorter, for example, by completing the last jewels or only slightly beyond.
  • the Materialbypassieitung overlaps therefore according to an expedient embodiment by less than 10%, preferably not at all, with the longitudinal beams.
  • the length of the longitudinal bars is at least 2.3 to 2.8 times the diameter of a grinding roller.
  • the material saving is not limited only to the omitted cross struts, but also enables a shortening of the longitudinal bars.
  • Fig. I is a partially sectioned side view of an inventive
  • Fig. 3 is a partially sectioned front view of the grinding roller of FIG.
  • Fig. 4 is a partially sectioned side view of a roll mill according to the prior art.
  • Fig. 5 is a partially sectioned side view of the invention
  • the roller mill shown in FIGS. 1 to 3 for comminuting brittle grinding stock, such as limestone, dolomite or ore, essentially has two counter-rotating grinding rollers 1, 2, which form a grinding gap 3 between them.
  • the grinding rollers 1, 2 have a diameter of at least 1, 8 m and are supported on a machine frame, which is supported on a foundation 4.
  • the machine frame consists exclusively of two transverse to the grinding gap longitudinal beams 5, 6. There are therefore no cross braces, which connect the longitudinal beams together.
  • Each longitudinal beam 5, 6 is in particular formed by a steel beam, which may be made of several sections or in one piece.
  • Each grinding roller l, 2 is rotatably mounted in each case two bearing blocks 7, 8 and 9, 0, wherein in each case a bearing block of each grinding roller is mounted on one of the two longitudinal beams and the other bearing block on the other longitudinal spar.
  • the jewels 9 and 10 simultaneously form an abutment for the grinding roller 2, which acts as a hard roller.
  • the grinding roller 1 is designed as a Loswalze and communicates with a pressing device II in connection, which is supported on abutments 12, 13, which in turn are supported on the longitudinal bars 5, 6.
  • the jewels 7 and 9 and the abutment 12 are connected on their upper side with a top flange 14.
  • the jewels 8, 10 and the abutment 13 via a top flange 15 in connection.
  • the grinding gap 3 is fixedly set by spacer elements, not shown in more detail, wherein a grinding pressure of 50 MPa in particular and more on the pressing device 1 1 is generated.
  • the brittle material to be comminuted is first fed via a feed belt 16 to a bunker 17 and from there via a feed shaft 18 between the two grinding rollers 1, 2.
  • the foundation has an opening 19, over which the crushed regrind is discharged down.
  • a detector 20 is usually provided, with which metallic foreign bodies, such as, for example, an excavator tooth, can be detected.
  • a Umstellklappe 2 1 such foreign bodies, which would damage the grinding rollers, are passed over a material bypass line 22 to the grinding rollers 1, 2.
  • This material bypass line 22 communicates with the opening 19 in the foundation, so that the discharged foreign body are merged with the crushed millbase. A final discharge of such foreign body then usually takes place at another location.
  • Fig. 4 shows a side view of a conventional roll mill in the comparable parts are provided with the same reference numerals, which have been supplemented with an overprint.
  • the main difference is that the machine frame next to the two longitudinal beams (here only the longitudinal spar 5 'visible) additional cross struts 23', 24 ', which are provided in the region below the pressing device 1 1' and connect the two longitudinal beams together.
  • a spacer element 25 ' is provided, which also connects the two longitudinal members together. Since the bypass material is guided past this spacer element 25 ', the longitudinal bars project significantly beyond the bearing block 9', to such an extent that the material can be discharged from the material bypass line 22 'into the opening 19' of the foundation.
  • Fig. 5 shows the erfmdungswashe installation situation, where the longitudinal spar 5 does not have to protrude over the bearing block 9. In the illustrated embodiment, it concludes with this bearing block and can thus be made shorter by the amount AL.
  • the longitudinal beams 5, 6 lie on the foundation 4, that is, the opening 19 in the foundation is provided between the longitudinal beams.
  • the existing only of the two longitudinal beams machine frame on which the grinding rollers are supported on the foundation, can thus be made shorter in the case of a material bypass line.
  • the length of the longitudinal bars is at least 2.3 to 2.8 times the diameter of a grinding roller.
  • material is saved by the fact that no cross struts are required. This results in reduced material costs and also the transport costs are considerably lower.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Abstract

La présente invention concerne un broyeur à cylindres permettant la comminution d'une matière à broyer cassante, pourvu de deux cylindres de broyage entraînés en sens opposés et formant entre eux un interstice de broyage, qui présentent un diamètre d'au moins 1,8 m et sont maintenus sur un cadre de machine qui s'appuie sur un bâti, le cadre de machine étant exclusivement constitué de deux longerons s'étendant perpendiculairement à l'interstice de broyage.
PCT/EP2014/001650 2013-06-20 2014-06-18 Broyeur à cylindres permettant la comminution d'une matière à broyer cassante WO2014202212A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310106458 DE102013106458A1 (de) 2013-06-20 2013-06-20 Walzenmühle zur Zerkleinerung von sprödem Mahlgut
DE102013106458.2 2013-06-20

Publications (2)

Publication Number Publication Date
WO2014202212A2 true WO2014202212A2 (fr) 2014-12-24
WO2014202212A3 WO2014202212A3 (fr) 2015-07-09

Family

ID=51022279

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/001650 WO2014202212A2 (fr) 2013-06-20 2014-06-18 Broyeur à cylindres permettant la comminution d'une matière à broyer cassante

Country Status (2)

Country Link
DE (1) DE102013106458A1 (fr)
WO (1) WO2014202212A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114272991A (zh) * 2021-12-11 2022-04-05 浙江辰泰机械制造有限公司 拨动消卡料的对辊制砂机
CN114308216A (zh) * 2021-12-11 2022-04-12 浙江辰泰机械制造有限公司 能够消除卡阻的摩擦固定滚皮的对辊制砂机

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
US2994261A (en) * 1958-04-24 1961-08-01 Allis Chalmers Mfg Co Restraining device for rolls operating in pairs
DE102005006090A1 (de) * 2005-02-10 2006-08-24 Khd Humboldt Wedag Gmbh Zweiwalzenmaschine insbesondere zur Gutbettzerkleinerung
TR200704949U (tr) * 2007-07-16 2007-08-21 Yükseli̇ş Maki̇na San. Ti̇c.A. Ş. Eksantrik burçlu moment kollu yataklama paketi.
DE102007059072A1 (de) * 2007-12-07 2009-06-10 Khd Humboldt Wedag Gmbh Rollenpresse mit zwei Losrollen
CN101559392A (zh) * 2008-04-17 2009-10-21 李寿海 闪退硬性差速辊式破碎机
DE102010038197B4 (de) * 2010-10-14 2012-08-30 Thyssenkrupp Polysius Ag Wälzmühle zur Zerkleinerung von sprödem Mahlgut
US8544774B1 (en) * 2012-04-20 2013-10-01 Metso Minerals Industries, Inc. Roller crusher, and method of protecting a roller crusher from uncrushable objects

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114272991A (zh) * 2021-12-11 2022-04-05 浙江辰泰机械制造有限公司 拨动消卡料的对辊制砂机
CN114308216A (zh) * 2021-12-11 2022-04-12 浙江辰泰机械制造有限公司 能够消除卡阻的摩擦固定滚皮的对辊制砂机

Also Published As

Publication number Publication date
DE102013106458A1 (de) 2014-12-24
WO2014202212A3 (fr) 2015-07-09

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