In February 2005 BMH Marine, the world leading supplier of continuous screw-type ship unloaders, secured a contract for the delivery of a new high capacity Siwertell ship unloader for cement. The new unloader has inherited its structural design from the Siwertell heavy duty unloaders and its conveying system from the former cement unloaders but with screw conveyors of a larger size. The well proven unloader of model Siwertell ST 640-D will now for the first time be used for high capacity cement unloading at a marine import terminal.
The customer is The Houston Cement Company, L.P. located in Houston Texas, USA.
BMH Marine in the early 1980s established an industry standard for 800 t/h cement unloaders with its continuous, screw-type Siwertell units. Now the company sets up a new milestone in the evolution of high capacity unloaders with the introduction of a cement unloader with an unloading capacity of up to 1650 t/h. BMH Marine’s vast experience in high capacity unloading of various dry bulk materials was one of the main reasons to place this contract with BMH Marine. More than 235 Siwertell screw-type unloaders have been supplied since 1974 for a wide range of dry bulk materials, among them 35 with capacities of 1000-2000 t/h, and in total 130 for cement.
The efficiency of the new unloader is further improved in comparison with the 800 t/h unit, and additional features originally developed for the 800 t/h unit are also available for the new unloader series ST 640-D. As a part of the new contract, BMH Marine guarantees an hourly rated unloading capacity of 1500 t/h and a through-the-ship capacity of 1050 t/h for the rail-mounted unloader.
A Siwertell ship unloader transfers the material uninterruptedly to the downstream conveyor regardless of the movements of the ship unloader. For this purpose BMH Marine utilizes its well proven separate device, the Movable Transfer Trolley that continuously transfers material in an environmentally safe manner onto the downstream fully enclosed conveyor, even at the guaranteed high unloading rates. The state of the art inlet feeder, monitored by a sophisticated electronic control system is another example of the unique Siwertell features required to obtain the outstanding performance of the new unloader in terms of high capacity, high efficiency and environmentally safe operation.
One of the reasons to invest in high unloading capacity combined with high efficiency is the high freight rates. With the high capacity and efficiency of the new Siwertell unloader the customer almost reduces the ship costs in port by 50% compared with an 800 t/h unloading system. As a result the reduced berth occupancy will allow other activities on the dock.
The additional investment for upgrading the intake system from 800 to 1500 t/h results in a surprisingly short pay back period due to the great savings that follow with the higher unloading capacity and lower ship costs at port.
The new Siwertell cement unloader will be delivered in February 2006 and is scheduled to be in commercial operation at the mid of the year.
BMH Marine Ship Unloader
New 1650 t/h capacity cement ship unloader (1500 t/h guaranteed capacity)
In February 2005 BMH Marine, the world leading supplier of continuous screw-type ship unloaders, secured a contract for the delivery of a new high capacity Siwertell ship unloader for cement. The new unloader has inherited its structural design from the Siwertell heavy duty unloaders and its conveying system from the former cement unloaders but with screw conveyors of a larger size. The well proven unloader of model Siwertell ST 640-D will now for the first time be used for high capacity cement unloading at a marine import terminal.
The customer is The Houston Cement Company, L.P. located in Houston Texas, USA.
BMH Marine in the early 1980s established an industry standard for 800 t/h cement unloaders with its continuous, screw-type Siwertell units. Now the company sets up a new milestone in the evolution of high capacity unloaders with the introduction of a cement unloader with an unloading capacity of up to 1650 t/h. BMH Marine’s vast experience in high capacity unloading of various dry bulk materials was one of the main reasons to place this contract with BMH Marine. More than 235 Siwertell screw-type unloaders have been supplied since 1974 for a wide range of dry bulk materials, among them 35 with capacities of 1000-2000 t/h, and in total 130 for cement.
The efficiency of the new unloader is further improved in comparison with the 800 t/h unit, and additional features originally developed for the 800 t/h unit are also available for the new unloader series ST 640-D. As a part of the new contract, BMH Marine guarantees an hourly rated unloading capacity of 1500 t/h and a through-the-ship capacity of 1050 t/h for the rail-mounted unloader.
A Siwertell ship unloader transfers the material uninterruptedly to the downstream conveyor regardless of the movements of the ship unloader. For this purpose BMH Marine utilizes its well proven separate device, the Movable Transfer Trolley that continuously transfers material in an environmentally safe manner onto the downstream fully enclosed conveyor, even at the guaranteed high unloading rates. The state of the art inlet feeder, monitored by a sophisticated electronic control system is another example of the unique Siwertell features required to obtain the outstanding performance of the new unloader in terms of high capacity, high efficiency and environmentally safe operation.
One of the reasons to invest in high unloading capacity combined with high efficiency is the high freight rates. With the high capacity and efficiency of the new Siwertell unloader the customer almost reduces the ship costs in port by 50% compared with an 800 t/h unloading system. As a result the reduced berth occupancy will allow other activities on the dock.
The additional investment for upgrading the intake system from 800 to 1500 t/h results in a surprisingly short pay back period due to the great savings that follow with the higher unloading capacity and lower ship costs at port.
The new Siwertell cement unloader will be delivered in February 2006 and is scheduled to be in commercial operation at the mid of the year.
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