Application
This unit of competency describes the skills and knowledge required to match milling requirements to available services and equipment.
The unit applies to millers who are required to set and control milling equipment in industrial flour mills, including semolina mills and mills without purifiers. It includes development of strategies for effective use of power and automation, and directing programmed and other maintenance in order to ensure that milling performance is maintained.
All work must be carried out to comply with workplace procedures, in accordance with State/Territory work health and safety legislation that apply to the workplace.
No occupational licensing, legislative or certification requirements apply to this unit at the time of publication.
Elements and Performance Criteria
Elements | Performance Criteria |
Elements describe the essential outcomes. | Performance criteria describe the performance needed to demonstrate achievement of the element. |
1. Establish range of utilities and services used by mill | 1.1 Identify distributed services used in mill 1.2 Ensure schematics showing location and distribution of services are available and understood by key personnel 1.3 Categorise services as critical to mill operation or ancillary according to workplace procedures 1.4 Develop contingency strategies in the event of utilities and services requiring maintenance or repair |
2. Review mill electric power system for start-up and power demand management | 2.1 Identify mains supply terminal, input voltage and electricity supplier 2.2 Identify mill transformers and distribution to sub-mains 2.3 Identify back-up generation and supply system, including automatic and manual operation conditions 2.4 Identify location of mill equipment and areas supplied by each sub-main and switchboard 2.5 Recognise key features and requirements of installed electrical safety systems, including lock off and isolation switches 2.6 Obtain maximum demand and diversity factor (power factor correction) and identify implications for mill operations 2.7 Establish motor control and start-up procedures according to manufacturer, engineer and supply authority procedures |
3. Establish scope of hydrocarbon fuel use by mill | 3.1 Identify capacity and fuel use of any on-site boilers 3.2 Locate emergency generators and their fuel source 3.3 Identify other fuel-powered equipment and processes 3.4 Locate location of fuel reservoirs/tanks and review against mill strategy for the prevention of dust explosions |
4. Establish type and location of mill controls | 4.1 Identify mill operations and equipment controlled automatically 4.2 Identify mill operations and equipment controlled through central process control stations/terminals 4.3 Identify mill operations and equipment controlled manually 4.4 Determine back-up strategies for mill control in the event of failure of control equipment |
5. Control pneumatic conveying system | 5.1 Determine processes where negative or positive pressure is required 5.2 Monitor air speed and volume requirements for conveying tasks 5.3 Select air speed and volume appropriate for exhausts 5.4 Balance negative pressure systems according to mill operation procedures 5.5 Monitor for abnormal increases in blow-line pressure 5.6 Determine cleaning intervals for dust collectors |
6. Control wheat damping and conditioning | 6.1 Monitor adequacy of water supply according to mill operation procedures 6.2 Determine if feed forward or feedback system is used 6.3 Supervise moisture testing of wheat according to workplace procedures 6.4 Set damping system controls for desired moisture level taking into account feed rate and lying-in time |
7. Establish strategies and practices for efficient use of power and automation | 7.1 Maximise throughput to mill capacity where possible 7.2 Ensure manufacturer maintenance and lubrication schedules are followed 7.3 Ensure standard operating procedures (SOPs) for controls and workstations are developed and up to date |
Foundation Skills
This section describes those language, literacy, numeracy and employment skills that are essential for performance in this unit of competency but are not explicit in the performance criteria.
Skill | Description |
Numeracy | Identify maximum power demand for mill Identify typical range of power demand for mill, taking into account scope of equipment and average production requirements |
Navigate the world of work | Challenge and develop own management style and innovative practices Monitor adherence to legal and regulatory standards and responsibilities for self and others Consider own role in terms of contribution to broader goals of the work environment, and adapt and renegotiate role and responsibilities when this has the potential to increase effectiveness |
Interact with others | Use appropriate language and communication skills to facilitate discussions Provide information about innovative practices, processes and products Clarify the purpose and possible actions to be taken as a result of work-related communications |
Get the work done | Identify current innovative practice and organisational trends Use a computer, keyboard and software to collect and file research data Source, collect and organise a range of data about performance against targets Identify maintenance requirements and develop schedules |
Sectors
Grain processing (GRA)