Control screen room processes in milling
Overview
This standard is about the skills and knowledge needed for you to control screen room processes in milling. You will need the skills and knowledge to control the screen room processes which include screening, cleaning and conditioning processes. This includes cleaning by separation, screening by sieving, gravity, shape, air resistance as well as metal detection. It also covers wheat damping, conditioning and drying. This standard is for you if you work in food and drink manufacture and/or supply operations and carry out operative tasks in and around the screen room to control these screen room processes.
Performance criteria
You must be able to:
Prepare for processing
prepare for screening and cleaning in accordance with legal and
regulatory requirements, organisational health and safety, hygiene
and environmental standards and instructions
set up equipment according to specification
make sure that material is available and fit for use
start up the plant and check that it is running to specification
take action in response to operating problems in accordance with
organisational requirements
Carry out processing
carry out screening and cleaning in accordance with legal and
regulatory requirements, organisational health and safety, hygiene
and environmental standards and instructions
use equipment and make sure that it is supplied with materials
and services
achieve the required output to the correct specification
make sure the material is transferred to the next stage in the
process
take action in response to operating problems within the limits of
your responsibility
maintain communication according to organisational procedures
complete all records according to organisational standards
Knowledge and Understanding
You need to know and understand:
what the legal or regulatory requirements, the organisational
health and safety, critical control points, hygiene and
environmental standards and instructions are and what may
happen if they are not followed
- what recording, reporting and communication is needed, how to
carry this out and the reasons why it is important to do so
- how to carry out the necessary pre-start checks and why it is
important to do so
- how to follow the start up procedures for the processing and why
it is important to do so
how to follow work instructions and why it is important to do so
how to carry out processing and why it is important to do so
when and how to undertake routine maintenance and checks
what action to take when the process specification is not met
when it is necessary to seek assistance and how to seek it
how to operate, regulate and shut down the relevant equipment
how to make equipment ready for future use
what the limits of your own authority and competence are and why
it is important to work within them
- what the basic purposes of cleaning, damping and conditioning
are
- what basic effects cleaning, damping and conditioning have on
the material being processed in the screen room
- what the implications of incorrect cleaning, damping and
conditioning are
- the flow and order of processes which make up total screen room
activity
the purpose and system for wheat cleaning
what the principles, purpose and importance of separation
processes are including colour sorting
how modern milling separation plant is laid out and functions
how de-stoners and exhaust fans work including
combinator/concentrator, combi-cleaner
- how disc/cylinder separators work including spiral seed
separators
what specific gravity tables are and how they work
what magnet separators are and how they work
how dry scourers work including vertical, horizontal and
centrifugal impact
what aspirators are and how they work
what the purpose and importance of damping systems are
including automatic (microwave/capacitance), water
wheels/pumps and flow meters
- how damping works based upon simple screw worm/special
conveyor
- how modern milling conditioning bins are laid out and function and
how conditioning has an influence on milling
- what measurers, weighers and blending weighers are and how
they work
what the damping systems are in screen room processing
what the first break weigher is and how it works