Cotton ginning machinery manufacturer pramukh steel industries
Precision Ginning – Preserving Product Quality
Transcript of Precision Ginning – Preserving Product Quality
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Precision Ginning – Preserving Product Quality
Richard Byler
USDA Cotton Gin Lab, Stoneville MS
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Discussion primarily: Saw ginned Picked Upland cotton
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Cotton ginning nomenclature
Cotton gin plant – the entire system Cotton gin stand – the machine which
separates lint from seed
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Cotton gin functions
Control moisture content of lint Remove non-lint Separate lint from seed
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Moisture sub-system
Application of warm dry air ‘Open’ the seed cotton With seed cotton cleaners
Moisture addition (before gin stand)
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Moisture content ‘disturbances’
Moisture content of seed cotton Trash levels in seed cotton
Moisture content above or below ideal
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Moisture content disturbances
Traditional control Keep heat high Manual adjustment of heat
Current control Measure seed cotton moisture content Measure lint moisture content
Future
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Equipment - removal of non-lint
Seed cotton cleaning Cylinder cleaners Extractor cleaners
Lint cleaning Air-jet Saw-type
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Removal of non-lint disturbances
Hairy vs. smooth leaf cotton Moisture content Defoliation level before harvest Trash levels Trash type – cotton or weeds
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Cotton plant hairs R² = 0.9512
R² = 0.9438
1
2
3
4
5
0 50 100 150 200 250 300
HVI l
eaf g
rade
Leaf Trichomes/cm2
2010
2011
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Removal of non-lint disturbances
Traditional control ‘Worst case’ design Manual machine bypass More drying
Current control Drying and machine bypass control
Future
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Lint-seed separation equipment
Gin stand – saw primarily
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Lint-seed separation disturbances
Fiber-seed attachment force Level of linters Cultivar Moisture content
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Lint-seed separation disturbances
Traditional control Gin stand design Ginning rate
Current control Automated ginning rate
Future
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Gin Energy Use Continued monitoring of
commercial gins Measure and analyze fuel
use Design of
systems to reduce energy use
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Thank you