WO2010113119A1 - Method for controlling the material feed to a roller mill and such similar mills - Google Patents

Method for controlling the material feed to a roller mill and such similar mills Download PDF

Info

Publication number
WO2010113119A1
WO2010113119A1 PCT/IB2010/051390 IB2010051390W WO2010113119A1 WO 2010113119 A1 WO2010113119 A1 WO 2010113119A1 IB 2010051390 W IB2010051390 W IB 2010051390W WO 2010113119 A1 WO2010113119 A1 WO 2010113119A1
Authority
WO
WIPO (PCT)
Prior art keywords
roller
roller mill
mill
controlling
material feed
Prior art date
Application number
PCT/IB2010/051390
Other languages
English (en)
French (fr)
Inventor
Alexander Helm
Bent Horning
Original Assignee
Flsmidth A/S
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 Flsmidth A/S filed Critical Flsmidth A/S
Priority to BRPI1014057A priority Critical patent/BRPI1014057A2/pt
Priority to CN201080020302.5A priority patent/CN102421527B/zh
Publication of WO2010113119A1 publication Critical patent/WO2010113119A1/en

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
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/04—Mills with pressed pendularly-mounted rollers, e.g. spring pressed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/14—Edge runners, e.g. Chile mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/02—Feeding devices
    • 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 present invention relates to a method for controlling the material feed to a roller mill for continuous grinding of particulate material, such as cement raw materials, cement clinker and similar materials, which roller mill comprises a substantially horizontal grinding table and a number of rollers operating interactively therewith, said rollers rotating about separate roller shafts being connected to a vertical central shaft via a hinged connection allowing a free circular movement of the roller up and down in a plane comprising the centreline of the roller shaft, where material to be ground is continuously fed to the roller mill and ground material is continuously diverted from the roller mill.
  • the invention also relates to a roller mill for carrying out the method.
  • a roller mill of the aforementioned kind is known e.g. from published patent application DE No. 2.061.422.
  • This known mill is configured for rotation of the roller set with the grinding table at standstill, and moreover it is of the portion type which means that it cannot be operated continuously, instead being operated in portions involving charging, processing and emptying of one material portion at a time.
  • continuous grinding of particulate material is known from other roller mills which comprise means for continuous feeding of material to the roller mill, and means for continuous diversion of ground material from the roller mill, as for example by means of an air stream being introduced via a nozzle ring.
  • roller mills of the mentioned kind with several rollers hinged independently of one another the rollers will during the operation of the mill move up and down independently of one another in response to variations in the grinding bed thickness, frequently giving rise to variations in the mutual angular positions of the roller shafts.
  • the mean values for the angular positions of the roller shafts will normally lie within a very narrow range and, therefore, it may suffice to use only the angular position of one of the roller shafts as an input signal for the material control circuit.
  • the angle between a roller shaft centreline and a reference line can be measured using any suitable measuring device capable of delivering reliable measurements inside a mill subject to hostile conditions in terms of temperatures and dust levels.
  • a suitable device a displacement transducer can be mentioned.
  • the mill is run up to operation on the basis of a specific setpoint parameter being characterized by an ideal angel, after which the method according to the invention is started and takes over the control of mill feed. If the measured angle decreases, the control unit will release a signal to the feed system with instructions to reduce the material feed in order to avoid overfilling of the mill and vice versa.
  • the roller mill for carrying out the method for controlling the material feed comprises a substantially horizontal grinding table and a number of rollers operating interactively therewith, said rollers rotating about separate roller shafts being connected to a vertical central shaft via a hinged connection allowing a free circular movement of the roller up and down in a plane comprising the centreline of the roller shaft, means for continuous feeding of material to be ground to the roller mill and means for continuous diversion of ground material from the roller mill, and being characterized in that it comprises means for measuring an angle between at least one of the roller shaft centrelines and a reference line and means for using the measured angle as an input signal for a control circuit for controlling the material feed.
  • roller mill which comprises a horizontal grinding table 1 and a number of rollers 2 rotating about separate roller shafts 3 being connected to a vertical central shaft 4 via a hinged connection 5 allowing a free circular movement of the roller up and down in a plane comprising the centreline 6 of the roller shaft.
  • the roller mill further comprises means 7 in the form of a material container 8, an extraction band 9 and a feed duct 10 with a feed sluice 11 for continuous feeding material to be ground to the roller mill as well as means in the form of a not shown fan and a nozzle ring 12 for continuous diversion of ground material from the roller mill by use of gases.
  • the shown mill further comprises a drive system 13 for rotating the grinding table 1 and/or the central shaft 4, and hence the rollers 2, as well as a separator 14 for sorting the ground material being diverted from the grinding zone into a fine fraction which suspended in gas stream is diverted via an outlet 15 and into a coarse fraction which via a hopper 16 is recirculated to the grinding table 2 for further grinding.
  • a drive system 13 for rotating the grinding table 1 and/or the central shaft 4, and hence the rollers 2, as well as a separator 14 for sorting the ground material being diverted from the grinding zone into a fine fraction which suspended in gas stream is diverted via an outlet 15 and into a coarse fraction which via a hopper 16 is recirculated to the grinding table 2 for further grinding.
  • the roller mill comprises means in the form of a measuring device 17 for measuring an angle ⁇ between a roller shaft centreline 6 and a reference line 18.
  • the measuring device 17 is connected with means in the form of a control unit 19 which is capable of using the measured angle as an input signal for producing an output signal which is released to the feed system 7 for controlling the material feed at the given point in time.
  • the control unit 19 will release a signal, based on the signal received from the measuring device 17, to the feed system 7 with instructions to maintain, reduce or increase the material feed. If the measured angle decreases, the control unit 19 will release a signal to the feed system 7 to ensure reduction of the material feed 7 in order to prevent excessive filling the mill and vice versa.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
PCT/IB2010/051390 2009-04-01 2010-03-30 Method for controlling the material feed to a roller mill and such similar mills WO2010113119A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BRPI1014057A BRPI1014057A2 (pt) 2009-04-01 2010-03-30 método para controlar a alimentação de material a um moinho de rolos e tais moinhos similares.
CN201080020302.5A CN102421527B (zh) 2009-04-01 2010-03-30 用于控制将物料进给到碾压机的方法以及碾压机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200900442 2009-04-01
DKPA200900442 2009-04-01

Publications (1)

Publication Number Publication Date
WO2010113119A1 true WO2010113119A1 (en) 2010-10-07

Family

ID=42537962

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2010/051390 WO2010113119A1 (en) 2009-04-01 2010-03-30 Method for controlling the material feed to a roller mill and such similar mills

Country Status (4)

Country Link
CN (1) CN102421527B (zh)
BR (1) BRPI1014057A2 (zh)
TW (1) TW201043336A (zh)
WO (1) WO2010113119A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110127359A1 (en) * 2008-07-30 2011-06-02 Flsmidth A/S Roller Mill For Grinding Particulate Material
WO2014029809A2 (de) * 2012-08-22 2014-02-27 Gbf Gesellschaft Für Bemessungsforschung Mbh Verfahren zum mahlen

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106582959A (zh) * 2017-02-22 2017-04-26 南通澳润建材科技有限公司 带有阶梯状磨盘的立式磨粉机
EP3868476A1 (de) 2020-02-18 2021-08-25 Flender GmbH Mahlwerk, verfahren zum betrieb
CN115461155B (zh) * 2020-04-23 2023-11-24 吉布尔法伊弗股份公司 具有材料输入识别的研磨方法和设施

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2061422A1 (en) 1970-12-14 1972-06-15 VEB Gisag, χ 7034 Leipzig Bowl crushing machine foundry sand
US4640464A (en) * 1984-11-07 1987-02-03 Combustion Engineering, Inc. Roller mill control system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD79813A (zh) *
JP3112566B2 (ja) * 1992-06-05 2000-11-27 バブコック日立株式会社 ローラミル
DE10343218B4 (de) * 2003-09-12 2006-05-04 Loesche Gmbh Sicherheitssystem für eine Wälzmühle und Verfahren zur Herstellung von Zement
CN100493719C (zh) * 2005-03-01 2009-06-03 陆福才 超细粉立式辊磨研磨机
CN2805925Y (zh) * 2005-04-28 2006-08-16 沈阳重型机械集团有限责任公司 大型立式辊磨机
CN2808295Y (zh) * 2005-12-31 2006-08-23 郝天成 立式磨机

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2061422A1 (en) 1970-12-14 1972-06-15 VEB Gisag, χ 7034 Leipzig Bowl crushing machine foundry sand
US4640464A (en) * 1984-11-07 1987-02-03 Combustion Engineering, Inc. Roller mill control system
US4640464B1 (zh) * 1984-11-07 1988-12-20

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110127359A1 (en) * 2008-07-30 2011-06-02 Flsmidth A/S Roller Mill For Grinding Particulate Material
US8528844B2 (en) * 2008-07-30 2013-09-10 Flsmidth A/S Roller mill with application of gas
WO2014029809A2 (de) * 2012-08-22 2014-02-27 Gbf Gesellschaft Für Bemessungsforschung Mbh Verfahren zum mahlen
WO2014029809A3 (de) * 2012-08-22 2014-05-15 Gbf Gesellschaft Für Bemessungsforschung Mbh Verfahren zum mahlen
US9981270B2 (en) 2012-08-22 2018-05-29 Gbf Gesellschaft Fuer Bemessungsforschung Mbh Grinding machine

Also Published As

Publication number Publication date
BRPI1014057A2 (pt) 2019-09-24
CN102421527B (zh) 2014-01-08
CN102421527A (zh) 2012-04-18
TW201043336A (en) 2010-12-16

Similar Documents

Publication Publication Date Title
JP5409634B2 (ja) 鉱物性または非鉱物性材料の粉砕のための方法および装置
CA2615554C (en) Method and device for grinding hot, wet raw material
JP5092822B2 (ja) 木屑の供給処理方法および供給処理装置
WO2010113119A1 (en) Method for controlling the material feed to a roller mill and such similar mills
US20170304843A1 (en) Grinding system for grinding a material to be ground, and method for grinding a material to be ground
JP5660442B2 (ja) セメントキルンの燃料供給方法
JP4919159B2 (ja) 竪型粉砕機の制御方法及び制御装置
JP6261585B2 (ja) 粉砕方法
CN216448588U (zh) 一种窑尾自动下料装置
JP5057214B2 (ja) 竪型粉砕機の制御方法
JP2673844B2 (ja) 竪型粉砕機の自動運転方法
CN212469625U (zh) 一种混砂机进料装置
JP2613509B2 (ja) 竪型粉砕機
JP2709666B2 (ja) 竪型粉砕機
JP2681853B2 (ja) 粉砕設備
JP2711774B2 (ja) 竪型粉砕機の運転方法
JP2681854B2 (ja) 粉砕設備
JP5057213B2 (ja) 竪型粉砕機の制御方法
JP2711775B2 (ja) 竪型粉砕機
JP7080970B2 (ja) 粉砕装置及び粉砕装置の制御方法
JP2795361B2 (ja) 粉砕設備
JP7372593B2 (ja) 竪型粉砕機
JP2613508B2 (ja) 竪型粉砕機
JP2010125356A (ja) 竪型ミル
CN202290193U (zh) 超微细立式辊轮研磨机

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201080020302.5

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10713014

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 6997/CHENP/2011

Country of ref document: IN

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10713014

Country of ref document: EP

Kind code of ref document: A1

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: PI1014057

Country of ref document: BR

ENP Entry into the national phase

Ref document number: PI1014057

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20110930