I would not recommend going with mobile chute and mobile trolley. Why not make the chute part of the mobile hopper and then have it dump directly into the trolley. That way the chute may be able to be designed with a rock ladder that would minimize the impact on the trolley.

I can create flow simulation for your design or assist you with the design of the chute.

Gary ■

Wouldn't it be easier to modify the hoppers and take all the coal off the jetty and then run the material through a simple sizer somewhere where there was more room? Side loading over sized material as you are suggesting is not very smart unless you keep the material speeds down and then rely on hungry boards to contain the material.

Cheers

Colin Benjamin

Gulf Conveyor Systems Pty Ltd

www.conveyorsystemstechnology.com ■

Get Real Sunshine! The coal has grown 300mm on the same day.

According to a very recent thread you have had this problem before. The very same problem in fact. Clearly the video solution didn't work.

But, to elaborate on the sentiments of the previous replies:

Why are monstrous mobile cranes being used in conjunction with a geared vessel?

Regular collisions seem inevitable considering the proximity of the foremost mobile crane with the ships foremost crane.

How do you move a travelling hopper along a fully enclosed conveyor in this design? It's easy enough to do provided you know what is required.

As shown in figure 2 the traffic situation is horrendous, probably blocked completely on occasions.

What is the site for the envisaged crusher? It can't be near the shore according to the environmental restrictions.

Anyway this jetty is well enough piled to dispell Rolands concerns of the previous thread. It better be: in light of those mobile crane masses!

Either proposal requires extensive covered conveyors to who knows where. One requires a new fragile jetty extension to boot: which does away with any future lightering options.

Without any end elevations it is open to debate whether the proposed spillways are wide enough to prevent the 1500mm lumps from rolling sideways and landing in the drink.

There is a shipboard grab approaching the foremost hopper nearest the bows and the sternmost grab is deep in the bowels of its respective hold. If you want realistic comment you ought to make the correct adjustments to your model before throwing confusion to the winds...which then also begs the question why waste time on unrealistic modelling when the accompanying sketches are so rudimentary?

This a very unsatisfactory berth design: past, present and future. I doubt if Royal Haskoning could come up with something like this even on one of their worse days!

Looking forward to the next gripping/grabbing episode...well I am, for one. ■

In the parallel thread Roland has bemoaned the absence of feedback which prevails in these forums. There is a background scenario which implies that we are wasting our time. For myself I have plenty of time and when not gardening, training my parrots or playing my saxophone I sort of enjoy wasting my time with this rubbish. Particularly with threads like these. This thread starter has presented deliberately contradictory information in a very poor format, ignores points presented to him and has the gall to quote what has been presented to him as reason for ignoring those very points raised.

I will not get off his back! Enough said now? ■

Anil

I sent you another viable option via email that your client may prefer requiring no modification to the existing hopper. Please review your email and get back to me.

Gary ■

You'd all better get a move on. Some comedian has already put out this tender invite , see News from Industry, seemingly before he had even seen the job or misdirected your valuable input. I was wasting my time at Angkor Wat for a few days and this thread compares well. ■