Screw pumps: easy pneumatic conveying of free-flowing bulk material
Pneumatic conveying of dry, free-flowing, pulverized materials
Manufacturing industries depend on reliable conveying systems. Pneumatic conveying is at the heart of these facilities, with its ability to transport materials quickly and easily by using compressed air. Screw pumps are an especially reliable and efficient type of pneumatic conveying because they are built to last with lower overall power consumption.
Type M Fuller-Kinyon® Screw Pumps are heavy-duty, screw-type pneumatic pumps most commonly used to convey dry, free-flowing, pulverized materials from grinding mills, transfer materials from silo to silo, transfer dust from collectors, and load and unload railcars, ships and barges. The materials are conveyed anywhere a pipeline can be run and to any number of delivery points. Distances of up to 4500 feet (~1375 meters) are not uncommon.
The MÖLLER® Pump has more than a thousand references worldwide and is at the heart of pneumatic transport of cement, lime, gypsum, fly ash, aluminium oxide, copper concentrate, coal dust and many other bulk materials for capacities from 1 to 250 mt/h.
Heavy-duty screw pumps for demanding applications
Our continuously operating conveying units benefit from a sturdy design with low wear and tear.
These heavy-duty, screw-type pneumatic pump systems are most commonly used to convey dry, free-flowing, pulverized materials from grinding mills, transfer materials from silo to silo, transfer dust from collectors, and load and unload railcars, ships and barges. The materials are conveyed literally anywhere a pipeline can be run and to any number of delivery points. Distances of up to 4,500 feet (~1,375 meters) are not uncommon.
Both our FK Screw pumps and MÖLLER pumps are designed to operate continuously and benefit from a sturdy design with low wear and tear. The housing is made with cast iron/steel that meets ATEX standards for shock-proof construction, ensuring your safety. The wear parts are hard-faced to provide high reliability and can be specially equipped to handle highly abrasive materials. The pump systems are flexible in design to accommodate many different head room requirements.
Low-pulsation dilute phase conveying is possible with the CE-certified MÖLLER pump, which has a self-plugging armoured screw without non-return valve. The pipe outlet can be rotated 360˚ to suit your process.
Both the FK Screw Pump and the MÖLLER pump are easy to maintain and energy-efficient, making them both very cost-effective means of transporting high volumes of materials.
Screw pumps that deliver: energy efficient, flexible and effective
Fuller-Kinyon® Screw Pump
Fuller-Kinyon Type M Pumps are constructed of cast iron and steel, and mounted on a cast iron base. Type M pumps are equipped with ball bearings that support a pump screw at both ends to help provide a smooth, balanced operation. The screw is dynamically balanced. Areas of the screw, and other parts of the pump that are in direct contact with the material to be conveyed, are made of hardened, wear-resistant material and special hard surfacing. The screw is directly coupled to the driving motor but can be v-belt driven.
So how does the MÖLLER Pump work? The material is fed continuously into the inlet and transported by a high-speed screw, working like a press, to the mixer head, which is mounted at a right angle to the screw housing outlet. This head can be rotated 360°, allowing adjustment to all possible conveying directions. The airstream from the nozzle takes the material from the mixer head and transports it through the conveying line to the receiving station. A bulk plug at the end of the screw creates a seal between the atmospheric pressure at the inlet and the high pressure conveying line. The adjustment between the screw diameter, the screw pitch and the speed guarantees the best possible plug formation.
Since this system doesn’t have a non-return valve at the outlet, the screw is the only moving part. This enables pulsation-free conveying, which is needed for such applications as burner feeding.
Upgrade your FK pump for peak performance
- Pneu-Flap Torque Controller for Fuller-Kinyon Pumps
Flapper valve torque can make a surprising difference to the performance of your FK Pump. It affects everything from component wear to throughput and power consumption.
The Pneu-Flap™ pneumatic flapper torque controller is designed to provide a constant torque through the full range of motion of your FK Pump discharge flapper valve. This ensures a strong material seal at all times between the pressurized conveying line and the pump screw. Reduced flapper valve movement and reduced backflow increase the life and efficiency of your equipment, so you’re spending less on maintenance and less on power consumption and seeing the gains in performance.
Operating conditions change, so the Pneu-Flap™ is designed to be easily adjusted online. You can even change materials without needing to shut down.
Higher capacity. More stable operation. Lower costs. It’s a no-brainer.
- Fuller-Kinyon Pump Auto-Lube System
Bearing failure can bring your FK Pump to a halt. You can avoid it by ensuring the bearing is properly lubricated – but that can be harder than it sounds. Too much lubricant can clog the bearing up. Too little and the damage can quickly cause the bearing to fail. Repair costs quickly mount up, not to mention the cost of downtime while maintenance is carried out.
By precisely dosing the perfect amount of lubricant, the Auto-Lube System ensures the bearing keeps running – and so does your FK Pump. The 2-litre storage capacity enables the Auto-Lube System to deliver continuously for up to 4 months before a refill is required. The system even monitors bearing temperature, so you’ll know if anything is amiss and you’ll be able to react to prevent failure.