Live screw bottom for abrasive material – 22280

Live screw bottom for abrasive material designed and delivered for a waste handling system inside an insulation factory.

What are the key points of the live screw bottom?

1. The material is lightly sticky and ribbon screw flights are use to avoid blocking of the material – see an example of ribbon screw flights here
2. Housing manufactured in Hardox-450 due to the abrasive material
3. Chain couplings used between the gear box and the screw rotor. Advantage of chain couplings:
   1. They are economical attractive
   2. They can transfer a high torque
   3. They are flexible and are able to obtain relatively large movements of the screw conveyor shaft
4. Supplied with a bin on the top with man holes for servicing the screw rotors in the bottom
5. Supplied with legs for very easy installation on-site

BEMA has experience for designing live screw bottoms for many different types of material.

Why should you use a live screw bottom?

1. If there is any kind of risk for bridge builidng a live screw bottom shall be seriously considered
   1. Mixing equipment in a a silo above a single screw rotor seldom works and can be very expensive in terms of re-design and modification on-site
2. A live screw bottom can be used for material dosing and is very accurate if it is operated correctly
3. The live screw bottom will empty the bin/silo above in a continously and safe way

See another project of a live screw conveyor bottom here

Which information are important when you design a live screw bottom?

1. Clarify the stickyness and properties of the transported material
2. Design the outlet so you avoid blocking and clocking in the outlet
3. Enure that the gear boxes have enough talk to move the material
4. Design manholes so you are able to service and maintain all parts easily

The engineers and technicians of BEMA can assist you in the design of the live screw bottom on all relevant technical points.