Horizontal screw conveyor for drill cuttings

Horizontal screw conveyor for drill cuttings manufactured as a part of a project with 3 screw conveyors. The screw conveyors are delivered for final use on an offshore drill rig. List os screw conveyors for drill cuttings:

• Horizontal screw conveyor Ø350×16330 mm
• Horizontal screw conveyor Ø350×15110 mm
• Swivel screw conveyor Ø350×4700 mm

The horizontal screw conveyors are supplied with intermediate bearings to ensure that the screw rotors are self carried.

What is the key design features for these intermediate bearings?

1. The intermediate bearings are manufactured including hardy discs
2. The hardy discs ensures flexibility in the screw rotor during operation
3. The bronze bearing is enclosed in a steel house and only need greasing on occasional time interval

It is very seldom possible to let horizontal screw conveyors “jump over buck” in an off-shore application due to the limited space. Due to this fact, BEMA has developed its own intermediate bearing for our off-shore horizontal screw conveyor designed specific for this environment. BEMA has more than 20 years of experience in working with the off-shore industry.

Characteristics of horizontal screw conveyors for off-shore use

1. The screw conveyors must fulfill off-shore standards on:
   1. Material selection
   2. Surface treatment
   3. Documentation of design
   4. Documentation of performed work
2. In most cases the design must obey ATEX requirements
3. The screw conveyor design must be documentated on design and calculation of performance
4. Most of the applications require a FAT test on the location where the end customer appears to check the screw conveyors

See another project of screw conveyors for off-shore use In BEMA we have our own design department. We have engineers and technicians who are able to cooperate with end customers to ensure that all specification requirements and demands are met for the screw conveyors. In our production we have space to execute FAT test with end customer participation.

For off-shore horizontal screw conveyors BEMA offers

1. Complete design according to specifications and off-shore requirements
2. Manufacturing of the screw conveyors
3. Performing FAT test in our own facilities
4. Delivering the final approved screw conveyors including the necessary documentation

FAQ: Horizontal Screw Conveyor for Drill Cuttings

1. What is a horizontal screw conveyor for drill cuttings used for?

It is designed to transport drill cuttings on offshore rigs, ensuring safe, stable and continuous material handling under demanding conditions.

2. Why are intermediate bearings important in offshore applications?

Intermediate bearings make the screw rotor self‑carried, provide flexibility through hardy discs, and require only occasional greasing. They are essential because offshore installations rarely allow conveyors to “jump over buck.”

3. What standards must offshore screw conveyors meet?

They must comply with offshore requirements for material selection, surface treatment, design documentation, work documentation, and often ATEX regulations. Many projects also require a full FAT test with the end customer.

4. What does BEMA deliver as part of an offshore screw conveyor project?

BEMA provides complete design, manufacturing, FAT testing in their own facilities, and delivery of fully approved conveyors with all required documentation.