FI20060302L - Procedure for estimating the ball input in a grinding mill - Google Patents
Procedure for estimating the ball input in a grinding mill Download PDFInfo
- Publication number
- FI20060302L FI20060302L FI20060302A FI20060302A FI20060302L FI 20060302 L FI20060302 L FI 20060302L FI 20060302 A FI20060302 A FI 20060302A FI 20060302 A FI20060302 A FI 20060302A FI 20060302 L FI20060302 L FI 20060302L
- Authority
- FI
- Finland
- Prior art keywords
- mill
- grinding mill
- estimating
- procedure
- ball charge
- Prior art date
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)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Artificial Intelligence (AREA)
- Health & Medical Sciences (AREA)
- Fluid Mechanics (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Evolutionary Computation (AREA)
- Medical Informatics (AREA)
- Software Systems (AREA)
- Automation & Control Theory (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.
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 FI20060302A0 (en) | 2006-03-29 |
FI20060302L true 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)
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 |
CA2901825C (en) | 2013-02-28 | 2021-03-16 | 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 |
GB2619744A (en) * | 2022-06-15 | 2023-12-20 | 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)
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 |
-
2006
- 2006-03-29 FI FI20060302A patent/FI20060302L/en not_active Application Discontinuation
-
2007
- 2007-03-19 WO PCT/FI2007/000069 patent/WO2007110466A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2007110466A1 (en) | 2007-10-04 |
FI20060302A0 (en) | 2006-03-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Transfer of assignment of patent |
Owner name: OUTOTEC OYJ Free format text: OUTOTEC OYJ |
|
FD | Application lapsed |