Re: Polymer / Plastic Pellets
Dear GailB,
Polymers can and are pneumatically conveyed.
Always free flowing is not really necessary, fluidizable also works.
1)Pellets pneumatically conveyable?
a.yes: go to 2)
b.no: end
2)Pellets fluidizable?
a.yes: A bulk tanker can be used (Airflow from own compressor + eventual booster)
b.no: go to 3)
3)Pellets free flowing?
a.yes: A bulk tanker can be used with a rotary lock. (Airflow from own compressor + eventual booster)
b.no: end
If transported in open bulk, a vacuum unloader with a rotating cutting nozzle will work.
The transporting system after the vacuum unloader depends on the situation. (To a silo, into a truck, etc)
Whether it is all worth the efforts, is a matter of a feasibility study and compare the present situation with the possible future situation.
Have a nice day
Teus ■
Teus
Re: Polymer / Plastic Pellets
Interesing, thank you Teus.
I was also wondering if anyone has knowledge /experience of consignments of 10,000, 20,000 tonnes or more being loaded to a bulk carrier, just to see if it is possible.
I know that Arabain Gulf states are planning to export millions of tonnes of polymers in future as part of their economic diversification plans.
I was wondering if this will always be a container traffic
Gail ■
Re: Polymer / Plastic Pellets
Dear Gail,
Shipments of 10,000 to 20,000 tons of polymer, which has a rather low bulk density, in bulk can be unloaded with product dedicated vacuum unloaders and pneumatically transported to a silo complex, when the polymer conveying properties are right.
The unloading must be considered as a part of a transport chain from the factory to the end user, in which the unloader is just one step. The ship has to be loaded and the polymer has to be moved from the silos to the end user.
Polymers are conveyed pneumatically in the manufacturing plants and therefore it must be feasible to unload the ships by vacuum conveying.
I know that polymers are applied in oil well stimulation projects and that they have to be transported by Production Supply Vessels to Floating Production, Storage and Offloading installations, where they unload their bulk cargo pneumatically.
A company with extensive experience in the field of offshore pneumatic conveying and unloaders is:
www.carlsengroup.com
contact:
cdk@carlsengroup.com
Visit their website and contact them freely for more information.
Best regards
Teus ■
Teus
Polymer / Plastic Pellets
Dear all
Does anyone know if plastic pellets could be handled in larger bulk consignments using pnuematic loaders/unloaders. Is polymer always free-flowing pellet form or more bulky? Could it be handled in bulk consignments and would it require specialised bulk carriers or are 'bulktainers' i.e. lined boxes the only possibility?
All comments welcome ■