cmic - processing group - energy in comminution ... - processing group - energy in comminution...

CMIC - Processing Group - Energy in Comminution

Comminution Technology Appraisal Study

00/2015

Persio Rosario, PhD

Director - Comminution

2

Presentation outline

� Introduction

� Objective

� Boundary Limits

� Execution Plan� Phase 1

� Phase 2

00/2015

�

� Progress of Work� Phase 1

3

Introduction

� CIMC identified the issue: energy in ore comminution

� Intends to allocate funding to efforts to reduce energy requirements and

there is a need to determine where to focus the efforts

� The appraisal study was defined and Hatch came onboard

� For over 50 years Hatch have worked alongside clients to develop and

00/2015

� For over 50 years Hatch have worked alongside clients to develop and

implement innovations in the mining and metals industries

� Hatch brings a wealth of skills to support the process of innovation on

projects: idea generation techniques; feasibility evaluation and testing

� The global nature and diversity of Hatch's business allows cross-

regional and cross-business sector transfers of novel ideas

4

Objective

� The overall objective of this long-term program is to reduce the energy required for comminution by greater than 50%

� Assessment of the value of existing and emerging technologies to reduce

the energy required for industrial ore comminution

� What are the engineering limitations of existing “more efficient” technologies?

� What is the potential value of extending existing technologies into newer

00/2015

� What is the potential value of extending existing technologies into newer

applications?

� What are prospects of non-conventional approaches?

� Are there notable alternative technologies “under the radar screen” that

should be considered?

� The assessment will result in a report identifying the approaches and technologies to be considered in a multi-year development plan

(short-term, long-term, academic and/or industrial testing…)

5

Boundary Limits

� This study is on the process technologies of comminution

� Out of scope:

� methods which reduce the size of feed to the comminution plant

� methods which reduce the volume of feed to the mill like pre-concentration

� recovery of energy from process streams in the mill

00/2015

� recovery of energy from process streams in the mill

Intelligent blasting, ore sorting, energy recovery are being studied by other CMIC groups

6

Execution Plan

Phase 1

� Literature review: investigation of technical publications and patents

� Contact and interview: consultants/experts, academia, suppliers…

(Global – Hatch’s group extensive network worldwide)

�

00/2015

� Compilation of a list containing all potential technologies, including:

� extension of existing technologies into newer applications

� non-conventional comminution approaches

� notable alternative technologies “under the radar screen”

7

Execution Plan

Phase 1

� Details to be included in the list:

� maturity level of development

� possible % reduction in energy requirement

00/2015

possible % reduction in energy requirement

� applicable size range, e.g. from 50mm to 1mm

� feasibility perception towards industrial application

� inhibiting factors and possible ways to mitigate them

� Develop basis for ranking all listed technologies (analysis matrix)

8

Execution Plan

Phase 1

� Present findings to CIMC processing group, including:

� the complete matrix with resulting ranking

� detailed information on the top 5 technologies

00/2015

detailed information on the top 5 technologies

� Together with CIMC processing group select the best 2 or 3 cases for

further investigation

9

Execution Plan

Phase 2

� Deeper investigation on top 2 or 3 selected technologies

� Together with CIMC processing group select the best technology for the

development plan and funding

00/2015

development plan and funding

� Completion of final report which includes a development plan (short-term,

long-term, academic and industrial batch/pilot testing)

10

Execution Plan – Work Progress

Phase 1




�

00/2015





11


Phase 1


33 Journal papers

135 Conference papers

00/2015

135 Conference papers

24 Patents

12


Phase 1


00/2015

13


Phase 1




�

00/2015





14


Phase 1

� Contact More than 30 names suggested

00/2015

15


Phase 1

� Interviews

Elaboration and

refinement of a

00/2015

questionnaire

16


Phase 1




�

00/2015





17


Phase 1 – List of Technologies

00/2015

18



00/2015

19



00/2015

20



00/2015

21


Phase 1

� Details to be included in the list:

� maturity level of development

� possible % reduction in energy requirement

00/2015

possible % reduction in energy requirement

� applicable size range, e.g. from 50mm to 1mm

� feasibility perception towards industrial application

� inhibiting factors and possible ways to mitigate them


22


Phase 1


00/2015

23

Execution Plan – Current stage

Phase 1

� Present findings to CIMC processing group, including:

� the complete matrix with resulting ranking

� detailed information on the top 5 technologies

00/2015

detailed information on the top 5 technologies

� Together with CIMC processing group select the best 2 or 3 cases for

further investigation

24


Phase 1

Ranking

00/2015

25

Execution Plan – Technology High Voltage Pulse treatment - Selfrag

00/2015

26

Execution Plan – Technology HPGR in close circuit with air classifiers

00/2015

27

Execution Plan – Technology HPGR-Stirred Media Mill Circuit (HPGR in series)

00/2015

28

Execution Plan – Technology Conjugate Anvil-Hammer Mill (CAHM)

00/2015

29

Execution Plan – Technology Multishaft Mill

00/2015

30

CMIC Processing Group and all participants

and

Acknowledgements

00/2015

and

Hatch

31

Thank you for your attention!

Questions?

00/2015

cmic - processing group - energy in comminution ... - processing group - energy in comminution...

Documents