EP1970124A2 - Broyeur agitateur à billes - Google Patents

Broyeur agitateur à billes Download PDF

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Publication number
EP1970124A2
EP1970124A2 EP08004262A EP08004262A EP1970124A2 EP 1970124 A2 EP1970124 A2 EP 1970124A2 EP 08004262 A EP08004262 A EP 08004262A EP 08004262 A EP08004262 A EP 08004262A EP 1970124 A2 EP1970124 A2 EP 1970124A2
Authority
EP
European Patent Office
Prior art keywords
cylinder
openings
ball mill
agitator ball
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Withdrawn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
EP08004262A
Other languages
German (de)
English (en)
Other versions
EP1970124A3 (fr
Inventor
Udo Enderle
Jochen Suk
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.)
Netzsch Feinmahltechnik GmbH
Original Assignee
Netzsch Feinmahltechnik GmbH
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 Netzsch Feinmahltechnik GmbH filed Critical Netzsch Feinmahltechnik GmbH
Publication of EP1970124A2 publication Critical patent/EP1970124A2/fr
Publication of EP1970124A3 publication Critical patent/EP1970124A3/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Withdrawn legal-status Critical Current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
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
    • B02C17/161—Arrangements for separating milling media and ground material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/183—Feeding or discharging devices
    • B02C17/1835—Discharging devices combined with sorting or separating of material

Definitions

  • the invention relates to a device for separating Mahlosêtn from the product in a stirred ball mill.
  • the object of the invention is to make this Vorklassier adopted so that the Mahlosterrorism be returned faster towards the inlet and the Mahlgut Mahlos redesignkonzentritation is concentrated on a specific area of the grinding container.
  • the material to be ground is already caused to recirculate in a relatively long distance in front of the separator.
  • a distance of 2 to 30 times, 5 to 20 times, 10 to 15 times the diameter of the openings introduced in the cylinder remains free.
  • the slot-shaped apertures may be inclined at an angle of 0-45 ° to the longitudinal axis of the shaft.
  • a grinding container which has a stirring shaft on which a plurality of, for example, disc-shaped grinding elements are arranged.
  • the disk-shaped grinding elements have a plurality of openings introduced in the disk, preferably in a circular shape.
  • the distance of the holes from the shaft center axis corresponds to 1/3 to 1/2 of the cross section of the openings.
  • the disc directly connected to the cylinder, which is also part of the cage, has openings through which the product can flow to the separator.
  • the cylinder itself is provided in the direction of the Mahlguteinlhus with an end wall, which has an axis near the opening to the stirring shaft.
  • individual flow deflection devices in the form of disks, vanes or deflectors can be arranged in the cylinder, which are arranged on the stirrer shaft or on the inside of the cylinder.
  • FIG. 1 shows a grinding container 10, of which only the Mahl currentlyerende is shown.
  • Mahl currentlyerende has a disc-shaped bottom part. In this bottom part is centrally introduced an opening through which the processed product is removed.
  • the stirring shaft 12, which is arranged centrally in the grinding chamber, has a plurality of grinding discs 14 which have circular openings 16.
  • the Separating device consists of several separating gaps that arise between statically arranged split rings.
  • the separating device may be designed from a dynamic separating device with movable separating members.
  • a cage 20 which extends around the separating device 18 in the direction of the grinding container bottom.
  • a cylinder 22 is located between the separating device 18 and the grinding disks 14.
  • the cylinder 22 has a plurality of circular openings 24 through which the auxiliary grinding bodies are conveyed from the axial region of the stirring shaft 12 back into the grinding chamber in the direction of the grinding material inlet.
  • the flow direction of the auxiliary grinding bodies and possibly a part of the ground material is represented by the flow arrows 26.
  • the auxiliary grinding bodies flow radially through the cage 20 back into the grinding chamber and at the same time in the direction of the grinding stock inlet. Due to the multiplicity of apertures 24 in the cylinder 22, an increased pre-classification takes place in front of the separating device 18, whereby a pressure relief of the outlet region is created.
  • the number and arrangement of the apertures 24 in the cylinder 22 is dependent on the size of the Mahlos emotions and the viscosity of the product.
  • the cylinder 4 at the same distance from each other arranged annular arrangements of apertures 24, all of which have the same diameter.
  • the distance between the last grinding disc 14 to the cylinder 22 is less than the disc spacing of the discs with each other.
  • the reduction of the distance of the last disc on the stirrer shaft to the cylinder can be between 25% and 50% of the previously arranged discs.
  • FIG. 2 shows the cylinder 22 with slit-shaped openings 28.
  • the slit-shaped openings 28 are each arranged at the same distance from the separation device, so that the area between the slot-shaped openings and the separation device is designed without openings. Due to the distance which exists between the slots through openings 28 and the cage, the circulation area in which the auxiliary grinding bodies from the region of the separating device 18 increases back into the grinding chamber, into the region of the grinding disks 14 stream.
  • the distance of the slot-shaped openings to the separation device 30 in this case corresponds to 2 to 2.5 times the length of the slot-shaped openings.
  • FIG. 3 shows the execution of the cylinder, wherein in each case two slot-shaped openings are placed together in series.
  • the openings 36 are additionally distributed over the entire circumference of the cylinder.
  • the cylinder has an end wall 32 which has a passage 34 in the region of the stirrer shaft 12 through which product and grinding media flow in the direction of the axial openings 36 which are introduced in the cage bottom 38.
  • the openings 36 in the cage bottom are placed in the area near the Roughwellenober Design. About these breakthroughs 36, an inner circulation flow, which consists of Mahlosterrorismn and regrind produced. This circulation stream is divided in the region of the separating device by the centrifugal action of the cage into a material to be ground and grinding stock / Mahlos redesignstrom, wherein the ground material flows through the screen surface of the separator from the grinding container.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
EP08004262.5A 2007-03-15 2008-03-07 Broyeur agitateur à billes Withdrawn EP1970124A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710012526 DE102007012526A1 (de) 2007-03-15 2007-03-15 Rührwerkskugelmühle

Publications (2)

Publication Number Publication Date
EP1970124A2 true EP1970124A2 (fr) 2008-09-17
EP1970124A3 EP1970124A3 (fr) 2014-06-18

Family

ID=39485087

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08004262.5A Withdrawn EP1970124A3 (fr) 2007-03-15 2008-03-07 Broyeur agitateur à billes

Country Status (3)

Country Link
EP (1) EP1970124A3 (fr)
CN (1) CN201231163Y (fr)
DE (1) DE102007012526A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010053484A1 (de) * 2010-12-04 2012-06-06 Netzsch-Feinmahltechnik Gmbh Dynamisches Element für die Trenneinrichtung einer Rührwerkskugelmühle
CN103433112A (zh) * 2013-08-07 2013-12-11 戴启彬 一种碎石机出料口
WO2014187824A1 (fr) 2013-05-21 2014-11-27 Flsmidth A/S Procédés et appareil de surveillance en continu de l'usure dans des circuits de meulage
ITTO20131004A1 (it) * 2013-12-09 2015-06-10 Luca Drocco Girante per una camera di macinazione e mulino di macinazione per fluidi associato.
CN112024060A (zh) * 2020-09-18 2020-12-04 广州京驰精工机械设备有限公司 一种大流量动态防堵分离系统

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101700504B (zh) * 2009-09-29 2012-11-28 武汉科技大学 一种带有内置式分级叶轮的卧式磨矿机
DE102013108809A1 (de) * 2013-08-14 2015-02-19 Netzsch-Feinmahltechnik Gmbh Trennvorrichtung für eine kugelmühle oder rührwerkskugelmühle sowie kugelmühle oder rührwerkskugelmühle mit trennvorrichtung
CN105833950A (zh) * 2016-05-16 2016-08-10 怡成屏障（张家港）科技有限公司 生产环保低碳涂料用的涂料砂磨机

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4412408A1 (de) 1994-04-11 1995-10-12 Netzsch Erich Holding Rührwerksmühle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19510807C2 (de) * 1994-03-24 1997-04-17 Netzsch Erich Holding Rührwerksmühle
DE19713765A1 (de) * 1997-04-03 1998-10-08 Bayer Ag Rührwerkkugelmühle mit umlaufenden Mahlkörpern

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4412408A1 (de) 1994-04-11 1995-10-12 Netzsch Erich Holding Rührwerksmühle

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010053484A1 (de) * 2010-12-04 2012-06-06 Netzsch-Feinmahltechnik Gmbh Dynamisches Element für die Trenneinrichtung einer Rührwerkskugelmühle
WO2012083915A3 (fr) * 2010-12-04 2012-08-23 Netzsch-Feinmahltechnik Gmbh Élément dynamique conçu pour le dispositif de séparation d'un broyeur à boulets
US8794558B2 (en) 2010-12-04 2014-08-05 Netzsch-Feinmahltechnik Gmbh Dynamic element for the separating device of a stirring ball mill
US8876028B2 (en) 2010-12-04 2014-11-04 Netzsch-Feinmahltechnik Gmbh Method for operating an agitator ball mill
WO2014187824A1 (fr) 2013-05-21 2014-11-27 Flsmidth A/S Procédés et appareil de surveillance en continu de l'usure dans des circuits de meulage
CN103433112A (zh) * 2013-08-07 2013-12-11 戴启彬 一种碎石机出料口
ITTO20131004A1 (it) * 2013-12-09 2015-06-10 Luca Drocco Girante per una camera di macinazione e mulino di macinazione per fluidi associato.
CN112024060A (zh) * 2020-09-18 2020-12-04 广州京驰精工机械设备有限公司 一种大流量动态防堵分离系统

Also Published As

Publication number Publication date
DE102007012526A1 (de) 2008-09-18
CN201231163Y (zh) 2009-05-06
EP1970124A3 (fr) 2014-06-18

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