Stunning Question
Hi anil seth,
What a stunning question - we are all struck dumb. No one dare answer such a simple request.
Every problem has a solution, and every solution brings with it a new problem.
1 - You have plenty of water. Salt water slurry is good for dust control, but the high corrosion rate means extra costs to control it.
2 - landing barge, or skip-wagon are tried and tested alternatives. With car-dumpers we can make some upmarket improvements on those ancient methods.
3 - A tube conveyor is great is you need to move the product on horizontal or vertical curves. But most jetties are straight, so a conventional belt with dust covers would be more economical.
4 - Once the product has settled down on the belt you should not have much fugitive dust - provided you protect it from the strong winds.
5 - The main issue is dust control at the unloading and discharge transfer points.
6 - Starting and stopping a high-speed belt 5 km long definitely presents some special problems. Talk to David Morgan about the Richards Bay coal handling plants. They have been there, done that.
Regards - John.Rz
www.latviantourists.com.au / Open Book Club / Files / Bionic Research Institute ■
Re: Best Ways To Handle Coal On 5 Km Long Jetty
Dear John.Rz, Thanks for your advise.
Regards, Anil
www.libranengineering.com ■
Re: Best Ways To Handle Coal On 5 Km Long Jetty
What is remotely unusual about pumping hydrocarbon slurry ashore in a brine environment? Most oil producers have been doing it all over the planet for the best part of a century. Strong currents indeed. Would a North Sea rig survive in the waters you are considering?
You need to do your homework & sort out the pipe sizes. A small pipelaying barge will/should cost you less than a piling rig, even without the piles & pontoons. Pipelay in a trench and the shoaling, literal drift influences etc should fall away.
Depending on the pulp gravimetric concentration it might be feasible to reticulate the carrier fluid if you are concerned about internal corrosion. Otherwise use a Duplex/Super Duplex pipe like the real engineers do.
What do your boffins at Royal Haskoning suggest? Trusting the sea roads are too rough for lightering barges. If you have waves you have wind & that will blow the bejabers out of your mainly empty belt, boards or not. Your take up will be onshore; miles away from the slackest belt; where the wind is strongest. ■
John Gateley johngateley@hotmail.com www.the-credible-bulk.com
Best Ways to Handle coal on 5 km long jetty
In India one of the major clients thinking best posibilties to Handle coal @ 4500 tph from supercape size ship.The suitable draft of 22 m is about 5 km away from the shore.This place is in Mundra,Gujarat where tidal waves and currents are very strong .
I can envisage the following methods to bring the coal--
1. By very common method of conveying by conveyors-ordinary or pipe.
2. By making slurry of coal near mother vessel and then pumped it to shore--I need comments on this unusual method.
If, there is any other logical method?
Anil
www.libranengineering.com ■