Dear gtsagkanis,

Loading cereals into a ship by a gravity chute or pipe is already a problem.

Loading a ship by a pneumatic conveying system creates an enormous dust problem.

The very dusty convey air is blown into the atmosphere un-filtered.

The way to go is therefore:

Separate the cereals from the convey air in a receiving hopper with a self-cleaning filter and load the cereals through a rotary valve on to a loading pipe with a pipe level controlled valve at the end with a skirt.

Cement ships are pneumatically loaded.

Then the hatches stay closed and the convey air is drawn back from the hold and filtered.

Under pressure in the hold MUST be maintained to prevent dust emissions through leaks and an over pressure device MUST be incorporated in the system, to prevent the hatch to be lifted.

Additionally, the hatches MUST be unlocked as a kind of safety valve.

Take this advice seriously, as an accident happened in the past when the responsible night shift managers did not listen to my warnings.

Success

Teus ■

Dear gtsagkanis,

Your options are depending on the local situation and the economics.

Loading many big bulk carriers per year allows you to invest more.

Loading a small barge every month cannot return even a small investment.

A considerable distance between the ship and the dock complicates a solution.

In other words, this requires inventiveness and engineering.

Good luck

Teus ■

I am surprised to see that you are warned about using a chute for loading cereals into vessels.

We are the worlds biggest manufacturer of loading chutes and have on several sites solve the dust problems with our integrated filter chute solutions. We are also well acquinted with the problems of overpressure, but this is taken care of by the integral filter system.

I can forward more information and references to you, should you be interested. ■

Dear salesman,

I am not aware of warning against the application of chutes for loading cereals into vessels.

However, an open chute is not the smartest solution.

My warning was to take the stored pressure energy in a pneumatic system seriously and nothing more.

The thread is about pneumatically loading a vessel and my reply was to separate the cereals from the pneumatic conveying air and load the ship through a pipe (covered chute) with a valve and a skirt.

I understand that the equipment required after the pneumatic conveying system is your field of expertise.

Whether pneumatic pressure conveying of cereals is feasible is not subject of this thread.

Best regards

Teus ■

Dear Sir,

please find our brochure on our ship loading chutes attached.

For more direct correspondance you can e-mail me on hfr@cimbria.com

Attachments

v-brochure-moduflex gb (PDF)

■

If you load the cereal by conveyor you need in front a chute for bring the material in ship. With chute you can reduce the falling high from cereal. The chute you can connect to filter and dedust. After you had a dust less loading. If you like we can quote you chute for this if we know the capacity for loading and high between conveyor and ship bottom.

The chute will drive up automatically if material will stay in chute.

For further information please alos visit our webside

www.bs-vertrieb.de

or send mail to bs-vertrieb@web.de

Best regards

Bernd Sauer ■

Depending on the specifics of your application, you can contact:

Martin Engineering

Neponset, IL

309.594.2384

www.martin-eng.com

(Experts in conveyor dust control and bulk material handling components.)

Dust Control Technology

Peoria, IL

309.693.8600

www.dustboss.com

(Specialists in large-scale outdoor dust control.) ■