FI20060302A0 - Method for estimating the ball load of a grinding mill - Google Patents

Method for estimating the ball load of a grinding mill

Info

Publication number
FI20060302A0
FI20060302A0 FI20060302A FI20060302A FI20060302A0 FI 20060302 A0 FI20060302 A0 FI 20060302A0 FI 20060302 A FI20060302 A FI 20060302A FI 20060302 A FI20060302 A FI 20060302A FI 20060302 A0 FI20060302 A0 FI 20060302A0
Authority
FI
Finland
Prior art keywords
mill
grinding mill
estimating
ball charge
estimate
Prior art date
Application number
FI20060302A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20060302L (en
Inventor
Jussi Jaervinen
Peter Blanz
Original Assignee
Outokumpu Oy
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 Outokumpu Oy filed Critical Outokumpu Oy
Priority to FI20060302A priority Critical patent/FI20060302L/en
Publication of FI20060302A0 publication Critical patent/FI20060302A0/en
Priority to PCT/FI2007/000069 priority patent/WO2007110466A1/en
Publication of FI20060302L publication Critical patent/FI20060302L/en

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
    • G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
    • G05B13/04—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
    • 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
    • B02C17/1805—Monitoring devices for tumbling 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
    • B02C25/00—Control arrangements specially adapted for crushing or disintegrating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Artificial Intelligence (AREA)
  • Evolutionary Computation (AREA)
  • Medical Informatics (AREA)
  • Software Systems (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Health & Medical Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Fluid Mechanics (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

In the present invention a method, apparatus and computer program are presented, with which the amount of balls among ore material contained in a grinding mill is estimated as a percentage by volume of the total volume of the mill. Preferably, the invention relates to semi-autogenous mills. In the invention, an expanded Kalman filter is used to estimate the ball charge such that measurements obtained from the process and process models are utilized. The invention combines the exact measurement of the fill level of the mill and some other measurement which is dependent upon the fill level and ball charge. By taking this information along into the Kalman filter algorithm an exact estimate for the ball charge can be calculated.
FI20060302A 2006-03-29 2006-03-29 Procedure for estimating the ball input in a grinding mill FI20060302L (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI20060302A FI20060302L (en) 2006-03-29 2006-03-29 Procedure for estimating the ball input in a grinding mill
PCT/FI2007/000069 WO2007110466A1 (en) 2006-03-29 2007-03-19 Method for estimating the ball charge of a grinding mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20060302A FI20060302L (en) 2006-03-29 2006-03-29 Procedure for estimating the ball input in a grinding mill

Publications (2)

Publication Number Publication Date
FI20060302A0 true FI20060302A0 (en) 2006-03-29
FI20060302L FI20060302L (en) 2007-09-30

Family

ID=36191974

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20060302A FI20060302L (en) 2006-03-29 2006-03-29 Procedure for estimating the ball input in a grinding mill

Country Status (2)

Country Link
FI (1) FI20060302L (en)
WO (1) WO2007110466A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010062204B4 (en) * 2010-11-30 2015-06-18 Siemens Aktiengesellschaft Use of temperature measurements for the indirect measurement of process variables in grinding plants
EP2522430A1 (en) * 2011-05-13 2012-11-14 ABB Research Ltd. Method of observing a change of mass inside a grinding unit
CN102600958B (en) * 2012-03-30 2014-08-27 西安艾贝尔科技发展有限公司 Method for controlling loadage of grinding body in cylinder type ball mill
AU2014222755B2 (en) 2013-02-28 2016-08-04 Outotec (Finland) Oy Method of controlling a grinding mill process
CN103495487B (en) * 2013-10-17 2016-01-06 中冶长天国际工程有限责任公司 A kind of ore mill regulates the method and apparatus of steel ball filling rate in controlling
CN109840377B (en) * 2019-01-30 2022-12-30 北京矿冶科技集团有限公司 Online soft measurement method for mixed filling rate of mill
GB2619744B (en) * 2022-06-15 2024-09-18 Intellisense Io Ltd System and method for continuous optimization of mineral processing operations
CN115291519B (en) * 2022-08-16 2024-04-12 中南大学 Intelligent optimization control method for ore grinding process

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI115854B (en) * 2003-01-17 2005-07-29 Outokumpu Oy Procedure for determining the degree of filling of the mill
CA2456608C (en) * 2003-01-31 2009-01-06 Universidad Tecnica Federico Santa Maria A system to determine and analyze the dynamic internal load in revolving mills, for mineral grinding

Also Published As

Publication number Publication date
FI20060302L (en) 2007-09-30
WO2007110466A1 (en) 2007-10-04

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Legal Events

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Owner name: OUTOTEC OYJ

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