NordströmsSiwertell
HIGH CAPACITY SHIP UNLOADING
Presented by: Mr. Peter Goransson, Sales Manager & Advisor,
Bulk Handling Division, MacGREGOR Bulk AB, December 2006
Tremont House, Galveston, Texas, USA
NordströmsSiwertell
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MacGREGOR BulkOur new name is
BMHMarine
We are known as
Our new name is
Name change
NordströmsSiwertell
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About this presentation
How to minimize the time the ship is at your berth is the key factor to focus on!
The right way to approach this is to increase the efficiency and the unloading rate of the ship unloading system.
We will show an example of how it can be done!!
NordströmsSiwertell
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Definition of high capacity
Each supplier have their own definition of high capacity, some even claim 300 mt/h to be high capacity!!
MacGREGOR Bulk’s definition of high capacity is as follows:
A rated unloading capacity of minimum 1500 mt/h with a maintained efficiency of minimum 70% of the rated capacity.
Efficiency =Through-the-ship capacity
Rated capacity
NordströmsSiwertell
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1:st
mult
ipurp
ose
unloa
der r
ated
120
0 m
t/h
1974
1984
1980
1975
Siwe
rtell N
o. 1
is d
elive
red
rate
d 12
5 m
t/h
1:st
Siwe
rtell r
ated
150
0 m
t/h fo
r gra
in
1:st
Siwe
rtell r
ated
230
0 m
t/h fo
r mine
rals
1:st
Siwe
rtell f
or ce
men
t rat
ed 6
00 m
t/h
1:st
Siwe
rtell
rate
d 10
00 m
t/h fo
r coa
l
1:st
Siwe
rtell
rate
d 80
0 m
t/h fo
r cem
ent
1982
1990
2003
1996
2005
1:st
Siwe
rtell
rate
d 20
00 m
t/h fo
r coa
l19
96
1:st
Siwe
rtell r
ated
240
0 m
t/h fo
r coa
l
1:st
Siwe
rtell r
ated
150
0 m
t/h fo
r cem
ent
Unloading rate development
year
capa
city
NordströmsSiwertell
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Siwertell ship unloaders with a rated unloading capacity exceeding 1500 mt/h
2; 11% 1; 5%
2; 11%
14; 73%
GrainCementMineralsCoal
Totally 19 ship unloaders delivered
Ship unloader statistics
NordströmsSiwertell
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Design rate statistics cement
800 mtph56%
900 mtph3%
1500 mtph1%
300 mtph3%
350 mtph1%
700 mtph16%
600 mtph12%
500 mtph3%
450 mtph1%
400 mtph4%
1500 mtph900 mtph800 mtph700 mtph600 mtph500 mtph450 mtph400 mtph350 mtph300 mtph
Mobile unloaders excluded
NordströmsSiwertell
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Which factors have an impact on the total unloading cost?
1. Freight cost (daily cost of ship)
2. Efficiency of the ship unloading system
3. The capacity of the ship unloading system
4. The energy consumption of the ship unloading system
5. The expected annual throughput of the terminal
6. The ship size
NordströmsSiwertell
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Transportation cost
The transportation cost consists
of two parts:
Ship on route Ship at berth
We can contribute to reduce the number of days the ship is at berth
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Freight development
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When the factors previously mentioned have been made up, these numbers can then be entered into this spread sheet.
Calculations
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Cost summary
1050560tons/hourThrough-ship-capacity
1,100,523US$Annual cost saving
2,080,854.-3,181,377.-US$Total ship cost at quay
48*89*daysNumber of unloading days
20,00020,000US$Ship cost per day
1500800tons/hourRated unloading capacity
60,00060,000dwtShip size
1,000,0001,000,000tons/yearAnnual throughput
Siwertell 1500 t/hSiwertell 800 t/hUnit Input data
Annual throughput 1 million ton
* Based on 20 hours of operation
NordströmsSiwertell
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1050560tons/hourThrough-ship-capacity
1,517,190US$Annual cost saving
2,557,044.-4,070,324.-US$Total ship cost at quay
48*89*daysNumber of unloading days
30,00030,000US$Ship cost per day
1500800tons/hourRated unloading capacity
60,00060,000dwtShip size
1,000,0001,000,000tons/yearAnnual throughput
Siwertell 1500 t/hSiwertell 800 t/hUnit Input data
Annual throughput 1 million ton
* Based on 20 hours of operation
Cost summary
NordströmsSiwertell
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1050560tons/hourThrough-ship-capacity
2,268,857.-US$Annual cost saving
3,458,949.-5,727,806.-US$Total annual cost
96*178*daysNumber of unloading days
20,00020,000US$Ship cost per day
1500800tons/hourRated unloading capacity
60,00060,000dwtShip size
2,000,0002,000,000tons/yearAnnual throughput
Siwertell 1500 t/hSiwertell 800 t/hUnit Input data
Annual throughput 2 million ton
* Based on 20 hours of operation
Cost summary
NordströmsSiwertell
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1050560tons/hourThrough-ship-capacity
3,102,190.-US$Annual cost saving
4,411,320.-7,513,520.-US$Total annual cost
96*178*daysNumber of unloading days
30,00030,000US$Ship cost per day
1500800tons/hourRated unloading capacity
60,00060,000dwtShip size
2,000,0002,000,000tons/yearAnnual throughput
Siwertell 1500 t/hSiwertell 800 t/hUnit Input data
Annual throughput 2 million ton
* Based on 20 hours of operation
Cost summary
NordströmsSiwertell
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How would my terminal benefit from a ship unloading capacity upgrade?
Thoughts
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From thinking to action!
Houston Cement Company, Houston, Texas USA
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Study of layouts (Ship unloader and dock)
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Study of terminal layout
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Study of terminal layout
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Ship unloader main dimensions
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Ship unloader working diagram
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Siwertell D-type ship unloader
• The Siwertell D-type is the heavy-duty machine of continuous Siwertell screw-type ship unloaders
• The D-type unloads ships up to 180,000 dwt
• Can be used for all applications, no limitations
• Now also available for operation at large cement terminals when a high through-ship-capacity and annual intake is required
NordströmsSiwertell
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Ship unloader facts
The largest continous cement ship unloader
known in terms of size and capacityFacts:
Model ST 640-D
Vertical arm: 22 m
Vertical conveyor: VST 640
Horizontal arm: 25,25 m
Horizontal conveyor: HST 1000
Total weight: 415 tons
Power consumption:0,40 kWh/ton
Installed power: 952 kW
At rated capacity: 600 kW
Rated capacity 1500 mt/h
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View of horizontal arm and vertical conveyors
Horizontal conveyor size 1000 mm (40”)
Vertical conveyor size 640 mm (25”)
Twin motor drive unit for vertical conveyor
Ship unloader facts
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Terminal data
6 storage silos, total storage volume 100,000 m ton
Dock facilities with ship unloaderand belt conveying system
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Ship unloader and belt conveyor
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Movable Transfer Trolley
Purpose:
Transfer the unloaded product from ship unloaderto shore conveying system without interfering with the operation of the Ship Unloader.
Advantage:
Gives an environmentally safe transfer of the product to the receiving system.
Increases the efficiency of operations
Key feature
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Conveying system to silos
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Belt conveyor factsConveyor gallery with belt conveyor, open top type
72” belt conveyor (1905 mm) is used
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Terminal data
Conveying to shore with belt conveyors
Vertical elevation by two bucket elevatorseach rated at 1000 t/h
Height of bucket elevators about 70 m
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Terminal data
Distribution of material on the silo top by meansof aero slides
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Belt conveyor and transfer tower
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Performance testing
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Performance testing
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New feature
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References – more than 1500 mt/h
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Summary
Panamax size ship unloader
New industry standard unloading rate: 1500 mt/h
Efficient operation > 70% of rated capacity
Ship unloader Siwertell ST 640-D
Efficient operation > 70% of rated capacitythrough the ship
NordströmsSiwertell
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• Achieved through the ship capacity: 1063 mt/h
• Guaranteed through the ship capacity: 1050 mt/h
• Achieved rated unloading capacity (2 hr average) 1643 mt/h
Guaranteed performance
• Guaranteed rated capacity 2 hr average: 1500 mt/h
• Energy consumption: 0,40 kWh/ton (through ship)
NordströmsSiwertell
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Conclusion – why high capacity?
Fast ROI for the additional investment cost going from 800 mt/h to 1500 mt/h
Reduction of unloading days by ~ 50%
Enables a high annual intake
Great savings in ship costs
Reduction of berth occupancy by ~ 50%
NordströmsSiwertell
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Superior Performance by Swedish Technology
NordströmsSiwertell
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Bjuv, Sweden (Head office): Ship unloaders & loaders, mobile unloaders, and complete marine terminals.
BMH Marine ABGunnarstorpBox 566SE-267 25 BJUV, Sweden
Tel: +46 42 85800Fax:+46 42 85899
E-mail: [email protected]
Enköping, Sweden (Branch office): Selfunloaders and conveying systems, mechanical and pneumatic.
BMH Marine ABGesällgatan 7Box 914SE-745 25 ENKÖPINGSwedenTel: +46 171 23200Fax:+46 171 23299
E-mail: [email protected]
MacGREGOR offices in Sweden and abroad
USA representative: Mr Sture LindgrenP.O. Box 2116322529 Fox Glenn Circle76021 BEDFORD, TX
E-mail [email protected] (817) 354 8108, 214-649 8591