Help with screw conveyors - basic sizing, wear protection
Help with screw conveyors - basic sizing, wear protection
(OP)
Hey all, I'm specifying a screw conveyor system for powdered activated carbon and need to establish sensible lower bounds for size and material choice. All transport is horizontal and short distances.
Size: I have 150kg/h, ~300l/h - at 150mm, and assuming the conveyor will be half filled, the medium would need to move at about 1 cm/s - this feels low but sensible for me (but I don't know why). Comments?
The inside of the conveyor will be an ex hazard zone. Under different circumstances, I would call for PE wear slips along the through, I can't do that here because of possible static electricity. Through will be in 1.475 most likely, am thinking simply black steel for screw - any help with material choice for the screw is appreciated.
Size: I have 150kg/h, ~300l/h - at 150mm, and assuming the conveyor will be half filled, the medium would need to move at about 1 cm/s - this feels low but sensible for me (but I don't know why). Comments?
The inside of the conveyor will be an ex hazard zone. Under different circumstances, I would call for PE wear slips along the through, I can't do that here because of possible static electricity. Through will be in 1.475 most likely, am thinking simply black steel for screw - any help with material choice for the screw is appreciated.





RE: Help with screw conveyors - basic sizing, wear protection
RE: Help with screw conveyors - basic sizing, wear protection
But I've just seen that conductive PE exists (PE-el), not sure if suitable as wear protection since it's stated to be soft (http://www.senova.com/en/products/technical-plasti...).
To add:
The other question is if i have relevant wear at all - slow moving auger, little weight (150mm diameter, short length (1-2m)... ) - how to estimate wear?
RE: Help with screw conveyors - basic sizing, wear protection
There are many options, because static suppression is a huge deal in electronics manufacturing.
Have you tried looking at sizing from companies that make these?
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube
RE: Help with screw conveyors - basic sizing, wear protection
RE: Help with screw conveyors - basic sizing, wear protection
Different manufactuerers of dosing stations suggest slightly different sizes (in the 150 - 200 mm range).