Re: Reducing Height Of Fall During Transfer Of Cargo From Ship…
Somewhere along the line the operators need a proverbial red hot poker. According to the post the crane operators and crews are unable to position the grab within 13m of the barge deck because the ship rolls. Rolls 13-15m?
No grab is going to appreciably reduce dust if you have to drop through 13m. What differences have you noticed between clouting the barge with the grab or dropping truckloads of iron ore onto it from 13m? Either way the barge is doing well enough if it can take that sort of lightering duty. ■
John Gateley johngateley@hotmail.com www.the-credible-bulk.com
Re: Reducing Height Of Fall During Transfer Of Cargo From Ship…
Check out the indonesion coal termainals where barge to ship transfers is done
http://www.ptadaro.com/home.html
http://www.decoa.com.au/id49.htm
I agree with John - the grab must be very close to the ship hull for it to hit!!!. Is this the issue or is cycle time the issues ie total unloading rate/time???
I would suggest a re-evaluation and realignment of what are the overall parameters for transfer are...
Cheers
James ■
Reducing height of fall during transfer of cargo from Ship to Barges
Dear all,
We import raw materials via sea route. The mother vessels are anchored at sea and barges carry the raw material to our jetty.
The problem is the high height of fall of cargo during transfer from Ship to Barges. At the start when ship is loaded the level difference between Ship & Barge is the lowest. At the end when the ship is getting empty, the level difference reaches to 14 - 15 mtrs.
This high height of fall degrades the cargo and generates fines.
The ships grab cannot be lowered to barge level, as due to rolling of ships, the grab will hit the body of ship and damage it.
How much taking ballast in the ship will help?
Which type of Grabs are the most friendly to cargo for Fines Generation?
What are the options one can have for such operation?
This method of lightering must be 200 years old. There must have been some development in shipping by now.
Response from you is awaited.
Regards ■