The material to be fed using this system is :

Bales of Al-chip: one bale=30kg and size 280 mm x 300 mm x 270 mm

Al pipe bundle: 30 kg bundle

Ingots

Here is the rough sketch that would help visualize things a bit. It's a top view

We are designing the system so that 1 ton can be fed immediately. ■

I'd consider a ladle-like action principle too, with rotation along the longitudinal axis. As i understand you want to make a trapdoor, with actioning of trapdoor within the furnace. This would mean mechanics put in a rough environment, a quite sudden drop & splash and always the possibility of a "trapped" trapdoor (seen that the fed materials may be cumbersome and unwieldy).

Regards

R. ■

Where does it write "chute", and what is it that won' work? Please comment.

Thank you!

Regards

R. ■

Originally Posted by Roland Heilmann

I'd consider a ladle-like action principle too, with rotation along the longitudinal axis. As i understand you want to make a trapdoor, with actioning of trapdoor within the furnace. This would mean mechanics put in a rough environment, a quite sudden drop & splash and always the possibility of a "trapped" trapdoor (seen that the fed materials may be cumbersome and unwieldy).

Regards

R.

Thanks for your comments Roland. You are right about laddle like rotation however, considering there is enormous load that would need to be rotated, the gravity drop seems to be best solution avoiding any complications. The furnace floor isn't too deep and the factory we are doing for says the height is not that much for dropped materials to damage the floor. ■

Apparently the material is in bundles form. The chips are pressed to bales of about 30 kilograms, the pipes are thrown in bundles and ingots are worth 30 kilograms each as well. So material cannot flow to fall from aside. All of it is in bulky units placed on a mesh type floor attached to cantilever beam which can rotate about one end and is locked at the other (the locking mechanism is being pondered). You open the lock, the mesh like floor opens allowing material placed over it to fall down. There is ample room below to make the mesh floor hang and then be returned to original position ■

Dear FaisalMasud,

Attachment 31008

this is a open hearth furnace charging crane, which inserts its arm into a connecting head of a charging ladle / container, then moves to the furnace, inserts the ladle / container into the furnace and rotates that container etc. The charging ladle / container is an autonomous unit with foursided deep dumper body, the charging crane (read mobile unit as per requirement) may use several of these to be refilled when not on the crane. Further info is available from internet etc.

Regards

R. ■

Dear Roland,

Thanks a lot for this solution. I am looking into this too as an option. Infact our current thought solutions resemble this one as well.

I would like to show you a furnace resembling the one we are going to design for. It's here:

http://superfurnace.auto.officelive....pimage002.jpg

The base of the door is 80cm above the factory floor. The door is about 9ft wide and 40 inches high. The furnace itself is 11 ft deep horizontally.

I am new to this field so I wanted to ask people here do we have any codes/standards for designing these bulk charging systems like ASME boiler code etc? ■