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.
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.
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.
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.
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.