Our applications
Self-Discharging Ships
At H.W.Carlsen, we understand the critical role that efficient transportation plays in the cement industry. That’s why we’re proud to offer cutting-edge and sustainable self-discharging cement carriers designed to streamline the delivery process and optimize operational efficiency.
Self-discharging cement carriers are specialized vessels equipped with innovative technology that allows for the rapid and precise unloading of cement cargo at ports and terminals. These carriers are engineered to handle the unique challenges associated with transporting cement, ensuring timely delivery and minimizing product loss.
Our applications
Key Features and Benefits
Efficient Unloading: Our self-discharging cement carriers feature advanced discharge systems that facilitate quick and efficient unloading of cargo. This minimizes turnaround times at ports and enhances overall productivity.
Reduced Environmental Impact: By minimizing handling and eliminating the need for additional equipment at port facilities, our carriers help reduce environmental footprint and contribute to sustainable transportation practices.
Enhanced Safety: With automated discharge systems and advanced monitoring capabilities, our carriers prioritize safety throughout the unloading process, protecting both personnel and cargo from potential hazards.
Customized Solutions: We understand that every operation is unique, whether this is pneumatical or mechanical solutions. That’s why we offer customizable solutions tailored to meet the specific needs and requirements of our clients, ensuring optimal performance and maximum value.
System Configurations
Loading & Unloading
Loading
Pipeline Loading System
The pipeline loading system is utilized when a ship needs to be loaded pneumatically through a pipeline directly from a conveying system on shore. In this case, the cement (or other dry bulk materials) is transported via a pneumatic conveying system all the way to the ship through a pipeline. A flexible rubber hose connects the pipeline onshore with the ship’s onboard pipeline.
This simple and convenient loading solution is fully enclosed and has no moving parts. This means it is dust-free and requires almost no maintenance. Next, if maintenance is needed, spare parts are easily available.
- Loading by pressure through pipe and hose connection
- No on-board energy consumption
- Easy to operate
- No weather delays
- Adapted to shallow rivers and estuaries
Max. Vessel Size:Â Â Â Â Â Â Â Up to 40.000 DWT
Max. Convey Capacity:Â Â Up to 500 TPH
Project:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â New build or Conversion
Unloading
Screw Conveyor System
A screw conveyor system for a self-discharging cement carrier uses vertical and horizontal screw conveyors to load and unload dry bulk materials. With a wide choice of (spare) parts, the screw conveyors can be constructed to handle many different types of dry bulk materials.
Each hold of the ship is fitted with a sloped aeration bottom to collect material in the center of the hold. The vertical screw conveyor moves dry material up to deck level, which is transferred to a horizontal screw conveyor. The horizontal screw conveyor then feeds it to either the central hopper or the mechanical out loading boom for pneumatic or mechanical unloading, respectively.
Unloading
Fluidized Floor System
The Fluidized Floor System is one of the keys to successfully unloading dry bulk materials on board Self-Discharging Ships. This inclined bottom of the cargo holds is covered with fluidized fabric sections installed to the floor.
Air blown underneath the fluidizing fabric sections passes through the fabric and fluidizes the cement or other dry material. A ship with only a fluidized floor system installed can unload its cargo in combination with a ship-to-Silo or Ship-to-Truck unloader. These ship unloaders can be connected to the fluidized floor pipe system for conveying the dry bulk material to a storage facility or directly to trucks.
Unloading
E3-Cargo System
The E3-Cargo system uses a minimum of components to transport cement to and from the cement holds. This makes the system energy-saving, efficient and economical. The installation of an out-loading boom also makes mechanical unloading possible.
Each hold of the ship is fitted with a sloped aeration bottom to collect dry material in a E3 pressure tank in the center of the hold. No vacuum system is needed to unload the vessel due to the specially designed E3-Tanks. Once the E3 tanks are full, the tanks will discharge towards the receiving facility in a continuous material flow.
- Highly reliable pneumatic system
- Fully automated
- Efficient Solution
- Environmentally friendly
- Economical, low energy consumption
- No weather delays
- Continuous material flow
Max. Vessel Size:Â Â Â Â Â Â Â Up to 10.000 DWT
Max. Convey Capacity:Â Â Up to 500 TPH
Project:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â New Build
Unloading
Double Re-Loader System
The double re-loader system uses a set of vacuum pressure tanks to pneumatically discharge the vessel. The installation of an out-loading boom also makes mechanical unloading possible.
Each hold of the ship is fitted with a sloped aeration bottom to collect cement in the centre of the hold. A suction pipe is placed above the lowest point. Using vacuum flow created by vacuum pumps, material is conveyed to one of two re-loader tanks. The self-cleaning filters in the tank separate the air and material. Once full, the tank is pressurised to convey the cement to shore pneumatically. Using two tanks in tandem allows for a nearly continuous flow.
Loading
Screw Conveyor Loading System
The H.W. Carlsen screw conveyor (or auger) loading system features sufficient design versatility to accommodate loading applications in almost any industry. The (stainless) steel construction, special pitch design, hardened augers and more is used to convey the dry material to the ship holds. This design enables us to create articulated load conveyors for almost any powder or uniformly sized bulk material.
The dry bulk material can be loaded into the vessel by pneumatical or mechanical ship loaders. The horizontal screw conveyor, fitted with valves and drop-off pipes, distributes the dry material over the holds.
Loading
Airslide Loading System
Air slide loading systems use a slope that harnesses gravity to convey fine powders. This is achieved by forcing air through a porous aeration fabric for the required fluidization. The steel-structure boxed frames & housings, abrasion-resistant polyester fabric, and high-quality blowers combine to form loaders that are rugged and versatile enough to handle materials like cement, alumina, hydrated lime, fly ash, plastic powders and semolina.
Additionally, air-slide-based loaders are fully enclosed and self-cleaning and have no moving parts. This means they are quiet, dust-free and require almost no maintenance.
- Gravity loading
- Low Energy consumption
- Easy to operate
- Central Loading point
- No weather delays
Max. Vessel Size:Â Â Â Â Â Â Â Up to 40.000 DWT
Max. Convey Capacity:Â Â Up to 1.500 TPH
Project:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â New build or Conversion
For cement carries & floating terminals
Bulk handling solutions
Dry Bulk Handling
Products Handled
CARLSEN Self-Discharging Cement Carriers suitable to convey all types of dry bulk materials such as cement and fly-ash. Typical products are free flowing with an angle of repose of around 45° and an apparent density ranging from 0.5 to 2.5 tons/m³. According to the product characteristics (its delicate nature), CARLSEN suggests the adequate equipment your choice of material.Contact our engineering team for all your dry bulk handling questions.
