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PERFORMANCE & BENEFITS WITH THE
OCRIM TYPE DHA DE-BRANNER
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Plant Characteristics:
• Roll surface= 12.83mm
• Sifting surface= 0.699 m2
Mill in Northern Italy
Wheat Characteristics:• Ash: 1,90%
• Bulk Density: 80 Kg/hl
• H2O: 11%
• Non vitreous kernels: 30 to 35%
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Original Cleaning FlowCapacity 300 TPD
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Modified Cleaning Flowwith Color Sorting added - Capacity 300 TPD
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Modified FlowWith Color Sorting AND De-branning added – Capacity 336 TPD
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De-branner type DHA
DHA De-branner key features:
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De-branner type DHA
DHA De-branner key features:
• Feed distributor
• Slotted stainless steel metal screen (slot
dimensions 1 x 20mm)
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De-branner type DHA
DHA De-branner key features:
• Feed distributor
• One beveled abrasion wheel to
facilitate product entry
• Six cylindrical abrasion wheels
• Four externally adjustable restrictors to
adjust product thickness
• Slotted stainless steel metal screen (slot
dimensions 1 x 20mm)
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De-branner type DHA
DHA De-branner key features:
• Feed distributor
• One beveled abrasion wheel to
facilitate product entry
• Six cylindrical abrasion wheels
• Slotted stainless steel metal screen (slot
dimensions 1 x 20mm)
• Four externally adjustable restrictors to
adjust product thickness
• Forced air to clean screen
• The machine uses a 55 kw motor
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De-branner type DHA
% of De-branning proportional to:
• Length of time the wheat spends in the machine.
• Length of time is managed by means of a PLC.
• Product discharge managed by varying the RPM
of the chamber discharge airlock.
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Type of Modification Duration
1) De-branning System Installation tasks:
Civil Work 5 Days
De-branning system installation 12 Days
Electrical Installation 8 Days
2) Start-up:
De-branning line integration into the mill flow 4 days
3) Adjustments to the mill flow
Replacement of sifter cloths 1 day
Modification to purifier cloths 1 day
Modification to finish product destination 2 days
Installation Time Table
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Capacity Increase
Summary of achievements:
• 12% capacity increase to B1, from 300 T/DAY to 336 T/DAY
• 20% semolina production increase, from 210 T/DAY to 252 T/DAY
300 TPD336 TPD
0
50
100
150
200
250
300
350
Capacity
TPD
Without Debranning With Debranning
1st Break Capacity Increase
210 TPD252 TPD
0
50
100
150
200
250
300
Capacity
TPD
Without De-branning With De-branning
Semolina Production Increase
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Extraction shown by
Product with and without
De-branning
Summary of achievements:
• 12% capacity increase to B1, from 300 T/DAY to 336 T/DAY
• 20% semolina production increase, from 210 T/DAY to 252 T/DAY
Without De-branning
Semolina
70,15%
Fine Bran
20,58%
Shorts
5,34%
Flour
6,42%
With De-branning
Fine Bran
20,58%
Flour
1,34%
Shorts
5,34%
Semolina
75,15%
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Ash Curve before and after
De-Branning
Summary of achievements:
• Increase in extraction from 70.15% to 75,31% on equal ash terms at 0,91 d.b.
• The lowest ash value in the mill shifts from 0,762% (d.b.) to 0,644% (d.b.)
0,450
0,650
0,850
1,050
1,250
1,450
1,650
1,850
0 10 20 30 40 50 60 70 80 90 100
% Yield
% A
sh
De-branning at 8%
Without De-branner
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Without De-Branning
With De-Branning
Yield Ash Yield AshDifference
in Ash
Semolina 66,72% 0,90% 66,70% 0,82%8,83%
Ash Comparison by
Product
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Without De-Branning
With De-Branning
Yield Ash Yield AshDifference
in Ash
Flour 9,85% 1,697% 11,78% 1,53%10,84%
Ash Comparison by
Product
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Without De-Branning
With De-Branning
Yield Ash Yield AshDifference
in Ash
By-Products 22,28% 4,79% 20,37% 5,46%
Ash Comparison by
Product
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Bacterial Count
Summary of achievements:
• With the introduction of the De-branner the bacterial count of the wheat went from
25,000 UFC to 1,400 UFC. The wheat mold count decreased from 1,500 UFC to 120 UFC
• Consequently, the total bacterial count of semolina decreased from 2500 UFC to
800 UFC. Mold count of the semolina has gone from 250 UFC to 100
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Key Data Variables Price in Euro/Ton Price US$/Ton (exchange rate Euro 1 = US$ 1,3605)
Durum Price 165.00 Euro/Ton $224.48 US$/Ton
Semolina Price 240.00 Euro/Ton $326.52 US$/Ton
Flour 134.00 Euro/Ton $182.31 US$/Ton
Shorts 100.00 Euro/Ton $136.05 US$/Ton
Fine Bran 87.00 Euro/Ton $118.36 US$/Ton
Power 0.09 Euro/KWH $0.12 US$/KW
Working Days 300
Original Process (without De-branning) With De-branning
TPD Unit Price Totals/year TPD Unit Price Totals/year
Revenue
Semolina 210.45 $326.52 $20,614,840.20 252.51 $326.52 $24,734,281.82
Flour 19.26 $182.31 $1,053,369.85 4.50 $182.31 $246,245.71
Shorts 16.02 $136.05 $653,856.30 17.94 $136.05 $732,319.06
Fine Bran 61.74 $118.36 $2,192,328.75 69.15 $118.36 $2,455,408.20
Total Revenue $24,514,395.09 $28,168,254.79
Costs
Durum 300.00 $224.48 $20,203,425.00 336 $224.48 $22,627,836.00
Additional Operating Costs $104.303,55
Additional Maintenance Costs $34,012.50
Total Costs $20,203,425.00 $22,766,152.05
Revenue less Costs $4,310,970.09 $5,402,102.74
Economic Benefit/year $1,091,132.65
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