SAQA

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SOUTH AFRICAN QUALIFICATIONS AUTHORITY

REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE:

Mill materials in a dry process mill utilising grinding materials

SAQA US ID	UNIT STANDARD TITLE
10458	Mill materials in a dry process mill utilising grinding materials
ORIGINATOR
SGB Mining and Minerals
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-
FIELD			SUBFIELD
Field 06 - Manufacturing, Engineering and Technology			Fabrication and Extraction
ABET BAND	UNIT STANDARD TYPE	PRE-2009 NQF LEVEL	NQF LEVEL	CREDITS
Undefined	Regular	Level 2	NQF Level 02	22
REGISTRATION STATUS		REGISTRATION START DATE	REGISTRATION END DATE	SAQA DECISION NUMBER
Passed the End Date - Status was "Reregistered"		2018-07-01	2023-06-30	SAQA 06120/18
LAST DATE FOR ENROLMENT		LAST DATE FOR ACHIEVEMENT
2024-06-30		2027-06-30

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.

This unit standard does not replace any other unit standard and is not replaced by any other unit standard.

PURPOSE OF THE UNIT STANDARD

This unit standard will be useful for people who are responsible for reducing materials to fine powders, utilising dry process milling plant.

People credited with this unit standard are able to:

Demonstrate understanding of the milling process and plant;

Prepare the mill for production;

Operate the mill;

Adhere to safe working practices and

Assess the condition of the plant and optimise performance.

LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING

The credit calculation is based on the assumption that learners are already competent in terms of the following outcomes or areas of learning when starting to learn towards this unit standard:

Appropriate knowledge and competence relating to the manufacturing process, plant and equipment and lifting equipment.

UNIT STANDARD RANGE

Specific range statements are provided in the body of the unit standard where they apply to particular specific outcomes or assessment criteria.

Specific Outcomes and Assessment Criteria:

SPECIFIC OUTCOME 1

Demonstrate understanding of the milling process.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

1. The theory of milling and different milling plants relating to the operation of the plant, is explained at a level that is sufficient to enable effective operation of the plant.

ASSESSMENT CRITERION RANGE

Nature and properties of feed materials

Source of material for milling

Milling of material

Classification

Sampling to meet specifications

Grinding media

Ball and roller mill types

ASSESSMENT CRITERION 2

2. Components of the milling plant are described with respect to their function in the milling process.

ASSESSMENT CRITERION RANGE

Feeding system

Mill, drive and switchgear

De-dusting system

Classifying system, where appropriate, in closed circuit milling

Transport system

Storage system

ASSESSMENT CRITERION 3

3. The importance of complying with safe work procedures and regulations are described in terms of the potential effect on safety, equipment, environment and production.

ASSESSMENT CRITERION 4

4. Specified operating parameters and the consequences of not complying with them are explained as far as it affects product quality and customer satisfaction.

ASSESSMENT CRITERION RANGE

Temperature

Gas flow

Pressures

Feed rate

Particle size distributio

SPECIFIC OUTCOME 2

Prepare mill for production.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

1. All pre-start checks have been performed, faults identified and remedial action taken in accordance with specified requirements.

ASSESSMENT CRITERION RANGE

Doors closed

Thermocouples in working order

Equipment and material removed

Instruments in working order

Feed

Build ups of material in the process

Lubrication and coolants activated

ASSESSMENT CRITERION 2

2. The availability of feed materials and finished product storage capacity is ensured in accordance with production requirements.

ASSESSMENT CRITERION RANGE

Quantity

Visual inspection

Storage silo levels

ASSESSMENT CRITERION 3

3. The mill and ancillary plant are ready to run in accordance with specified requirements.

ASSESSMENT CRITERION 4

4. Documentation is completed in accordance with specified requirements.

SPECIFIC OUTCOME 3

Operate the mill.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

1. The mill and related systems are started in accordance with specified requirements.

ASSESSMENT CRITERION 2

2. Feed materials are supplied to the mill in the specified proportions. Process parameters are altered as required for different products as per specified requirements.

ASSESSMENT CRITERION 3

3. Milling equipment is operated such that product quality requirements are maintained and equipment performance is optimized in accordance with specified requirements.

ASSESSMENT CRITERION 4

4. Deviations from set parameters are rectified timeously in accordance with specified requirements.

ASSESSMENT CRITERION 5

5. The mill and related systems are shut down in accordance with specified requirements.

ASSESSMENT CRITERION 6

6. Safety regulations are complied with and personal protective equipment (PPE) is used in accordance with specified requirements.

ASSESSMENT CRITERION 7

7. All communication, both written and verbal, is in accordance with specified requirements.

ASSESSMENT CRITERION 8

8. Potential risks and hazards related to the materials being processed are identified and mitigation plans are known and applied in accordance with specified requirements.

ASSESSMENT CRITERION RANGE

Hot materials and gases

Chemical hazards

Noxious fumes

Dust

Fire

Explosion

ASSESSMENT CRITERION 9

9. Work is performed without injury to people or damage to equipment, buildings or plant, in accordance with specified requirements.

ASSESSMENT CRITERION 10

10. Material blockages are cleared in accordance with specified requirements.

SPECIFIC OUTCOME 4

Stop and inspect the mill.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

1. The mill is stopped in accordance with specified requirements.

ASSESSMENT CRITERION 2

2. The mill is prepared for inspection and maintenance in accordance with specified requirements.

ASSESSMENT CRITERION 3

3. Internal inspections are performed to assess condition of mill internals and grinding media in accordance with specified requirements.

ASSESSMENT CRITERION 4

4. Mill externals and auxiliary equipment are inspected in accordance with specified requirements.

ASSESSMENT CRITERION 5

5. Appropriate action following to the findings of the inspection is taken in accordance with specified requirements.

ASSESSMENT CRITERION 6

6. Tools and equipment are verified, examined and used in accordance with specified requirements.

ASSESSMENT CRITERION 7

7. Documentation is completed in accordance with specified requirements.

ASSESSMENT CRITERION 8

8. Lock out procedures and safety regulations are complied with and personal protective equipment (PPE) used in accordance with specified requirements.

ASSESSMENT CRITERION 9

9. Work is performed without injury to people or damage to equipment, buildings or plant, in accordance with specified requirements.

UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS

1. Anyone assessing a learner against this unit standard must be registered as an assessor with the relevant ETQA.

2. Any institution offering learning that will enable achievement of this unit standard must be accredited as a provider through the relevant ETQA by SAQA.

3. Moderation of assessment will be overseen by the relevant ETQA according to the moderation guidelines and the agreed ETQA procedures.

UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE

Essential embedded knowledge will be assessed through assessment of the specific outcomes in terms of the stipulated assessment criteria. Without knowledge of the listed embedded knowledge, candidates are unlikely to achieve all the specific outcomes to the standards described in the assessment criteria. This means that for the most part, the possession or lack of the knowledge can be directly inferred from the quality of the candidate`s performance. Where direct assessment of knowledge is required, assessment criteria have been included in the body of the unit standard.

UNIT STANDARD DEVELOPMENTAL OUTCOME

N/A

UNIT STANDARD LINKAGES

N/A

Critical Cross-field Outcomes (CCFO):

UNIT STANDARD CCFO IDENTIFYING

Identify and solve problems and make decisions using critical and creative thinking.

Note: The ability of the candidate to identify substandard and hazardous conditions, assess and take appropriate action.

UNIT STANDARD CCFO WORKING

Work effectively with others as a member of a team, group, organisation or community.

Note: The ability and willingness of the candidate to accept and interpret work instructions correctly.

UNIT STANDARD CCFO ORGANISING

Organise and manage himself / herself and his / her activities responsibly and effectively.

Note: The ability of the candidate to indicate what methods, tools and personal protective equipment are required, and to communicate to fellow workers his / her intentions and the assistance required.

UNIT STANDARD CCFO COLLECTING

Collect, analyse, organise and critically evaluate information.

Note: The ability of the candidate to reconcile the information from visual and physical examinations and constantly evaluate the changing situation.

UNIT STANDARD CCFO COMMUNICATING

Communicate effectively, using visual, mathematical and / or language skills in the modes of oral and / or written presentations.

Note: The appropriate communication with the relevant personnel with regard to the reporting of hazards and substandard conditions will indicate his / her proficiency in effective communication.

UNIT STANDARD CCFO SCIENCE

Use science and technology effectively and critically, thus showing responsibility towards the environment and health of others.

Note: The use of science and technology is not relevant for this unit standard.

UNIT STANDARD CCFO DEMONSTRATING

Demonstrate an understanding of the world as a set of related systems by recognising that problem-solving contexts do not exist in isolation.

Note: The ability of the candidate to identify and refer anomalous behaviour to a specialist confirms his / her understanding of the fact that a specific observation, inference, action or decision may have a devastating effect.

UNIT STANDARD ASSESSOR CRITERIA

Assessors should keep the following principles in mind when designing and conducting assessments against this unit standard:

Focus the assessment activities on gathering evidence in terms of the main outcome expressed in the title to ensure assessment is integrated rather than fragmented. Remember, we want to declare the person competent in terms of the title. Where assessment at title level is unmanageable, then focus assessment around each specific outcome, or groups of specific outcomes.

Make sure evidence is gathered across the entire range, wherever it applies. Assessment activities should be as close to the real performance as possible, and where simulations or role-plays are used, there should be supporting evidence to show the candidate is able to perform in the real situation.

Do not focus the assessment activities on each assessment criterion. Rather make sure the assessment activities focus on outcomes and are sufficient to enable evidence to be gathered around all the assessment criteria.

The assessment criteria provide the specifications against which assessment judgements should be made. In most cases, knowledge can be inferred from the quality of the performances, but in other cases, knowledge and understanding will have to be tested through questioning techniques. Where this is required, there will be assessment criteria to specify the standard required.

The task of the assessor is to gather sufficient evidence - of the prescribed type and quality as specified in this unit standard - that the candidate can achieve the outcomes again and again and again. This means assessors will have to judge how many repeat performances are required before they believe the performance is reproducible.

All assessments should be conducted in line with the following well-documented principles of assessment, namely appropriateness, fairness, manageability, integration into work or learning, validity, direct, authentic, sufficient, systematic, open and consistent.

REREGISTRATION HISTORY

As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015.

UNIT STANDARD NOTES

Terminology

Specified requirements include legal and site-specific requirements and are contained in one or more of the following documents:

Legal

Relevant Acts, e.g. Mine Health & Safety Act, 1996 (Act No. 29/1996), and Minerals Act and Regulations, 1991 (Act No. 50/1991)

Mandatory Codes of Practice

SABS and other relevant standards

Chief Inspector of Mines` Directives

Site Specific

Hazard Identification and Risk Assessments (HIRA)

Occupational Health and Safety Risk Management Programme

Managerial Instructions

Mine Standard Procedures

List of Recorded OH&S Risks

Working Guides

Equipment and Materials Specifications

QUALIFICATIONS UTILISING THIS UNIT STANDARD:

	ID	QUALIFICATION TITLE	PRE-2009 NQF LEVEL	NQF LEVEL	STATUS	END DATE	PRIMARY OR DELEGATED QA FUNCTIONARY
Elective	62869	National Certificate: Rockbreaking: Surface Excavations	Level 3	NQF Level 03	Passed the End Date - Status was "Reregistered"	2023-06-30	MQA

PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD:

This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.

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