Corn Mill PAES 210-211:2000 Flashcards
coarse powder from outer covering of the corn kernel removed during the milling process
bran “tahop”
refers to corn grit # 20 and # 24, floured corn, germ and bran
by-product
ratio of the weight of by-products, to the total weight of corn kernel input, expressed in percent
by-product recovery
shelled corn of either dent or flint varieties
corn kernels
milled corn kernels where the outer covering and germs have been removed and with particle size of not less than 0.86 mm
corn grits
milled corn kernels with particle size between 1.8 mm to 2.0 mm
grit #10
milled corn kernels with particle size between 1.5 mm to 1.7 mm
grit # 12
milled corn kernels with particle size between 1.2 mm to 1.4 mm
grit # 14
milled corn kernels with particle size between 1.10 mm to 1.19 mm
grit # 16
milled corn kernels with particle size between 0.86 mm to 1.09 mm
grit # 18
rewetting of dried corn kernels to about 18% to 22% moisture content and tempering it to make the pericarp and the germ more pliable and easier to remove
conditioning
equipment used to produce corn grits using the dry milling process
corn mill
machine used to remove the germ and pericarp from the corn kernel
degerminator
ratio of the weight of degerminated corn kernel sample, to the initial weight of the sample, expressed in percent
degerminator efficiency
process of reducing the corn kernels into pieces of grits, germ and pericarp with or without conditioning
dry milling
fine powder by-product of corn milling process
floured corn fines “tiktik”
embryo of the kernel removed during the degermination process
germ “sungo”
corn grit by-product with particle size between 0.70 mm to 0.85 mm
grit # 20
corn grit by-product with particle size smaller than 0.70 mm
grit # 24
weight of corn kernel per unit loading time into the hopper/intake pit, expressed in kilogram per hour
input capacity
refers to corn grit # 10, #12, #14, #16, and # 18
main product
ratio of the weight of corn grits, to the total weight of corn kernel input, expressed in percent
main product recovery
amount of moisture in the corn kernels expressed as percent of the total weight of the sample, wet basis
moisture content
major component of the corn mill used to reduce corn kernels into corn grits. Grit # 10
roller mill
Main Product Recovery, percent minimum of the product input Grit # 10
28
Main Product Recovery, percent minimum of the product input Grit # 12
21
Main Product Recovery, percent minimum of the product input Grit # 14
7
Main Product Recovery, percent minimum of the product input Grit # 16
6
Main Product Recovery, percent minimum of the product input Grit # 18
2
Main Product, percent, minimum
64
By-Product, percent, maximum
31
Losses, percent, maximum
5
Grits of other sizes, percent,maximum
7
Degerminator Efficiency, percent, minimum
80
Noise Level, [db (A)], maximum
92*
cleaner that uses air to separate lower density material from the corn kernels/corn grits such as floured corn, germ and bran
aspirator
ratio of the weight (kg) of the corn kernels, to its volume (m3)
bulk density
shelled corn kernels where the germ and pericarp have been removed
degerminated corn kernels
weight of the corn kernels fed into the corn mill per unit of time
feed rate
impurity any matter which is not corn kernels/corn grits or fragment of corn kernels/corn grits sand, gravel, dirt, pebbles, stones, lumps of earth, clay, mud, weeds and other crop seeds
foreign matter
weight of corn kernel per unit loading time into the hopper/intake pit, expressed in kilogram per hour
input capacity
equipment with definite shaking motion used to sort the size of the milled materials using standard screen sieves
laboratory sieve shaker
quantity of corn kernels that the corn mill can process to produce corn grits per unit of time
milling capacity
weight of the milled corn collected per unit of time
output capacity
auxiliary device of the corn mill that removes foreign material
precleaner
electric motor, or gasoline-fed, or diesel-fed engine used to run the corn mill
primemover
ratio of the weight of clean corn kernels, to the total weight of uncleaned corn kernels, expressed in percent
purity
oscillating screen wire mesh or perforated metal sheet, moving in back-and-forth direction, permitting smaller particles to fall through the openings and larger particles to remain on top
sifter
