Method for granulating and grinding molten material and device for carrying out said method
Assignee"Holderbank" Financiere Glarus AG
InventorAlfred Edlinger
Life of this patent
Estimating the term…
Abstract
In a process for granulating and comminuting molten material, the slag melt is acted upon by compressed water and discharged together with the vapour formed. The liquid slag is introduced into a granulation chamber in a free flowing jet while directing compressed water jets against the slag jet, whereupon the solidified and granulated slag is conducted through a pneumatic conveyor duct and a distributor along with the vapour formed. The partial streams leaving the distributor, via conically tapering nozzles are transferred into a grinding space exhibiting a lower pressure than the granulation space and from which the comminuted and solidified material is drawn off.
Claims22
A process for granulating and comminuting molten material in which a slag melt is impinged by compressed water and is discharged together with at least a portion of vapour formed as a result of the compressed water impingement, comprising the steps of:
- forming a free flowing jet of slag melt in a container;
- directing compressed water jets against the jet of slag melt in a granulation space to produce a solidified and granulated slag;
- conducting the slag through a pneumatic conveyor duct and a distributor together with the portion of vapour formed during the production of the slag, said distributor dividing the slag and vapour into separate streams;
- transferring the separate streams into a grinding space via respective conically tapered nozzles joined to the distributor, said grinding space having a lower pressure than the granulation space;
- and
- drawing off comminuted and solidified material from the grinding space.
Apparatus for granulating and comminuting molten material comprising:
- a container within which a free flowing jet of slag melt is formed;
- water jet means within said container for directing water jets against the jet of the slag melt to produce a solidified and granulated slag;
- a distributor joined to said container by a duct for transporting the slag from the container to a grinding space, said duct having a substantially S-shaped curve and the distributor being formed as a bifurcation relative to a mirror plane axially symmetrical to a plane of curvature of the duct;
- and
- means for drawing off comminuted and solidified material from the grinding space.
Apparatus according to any one of claims 15, 16, 18, 19, 22 or 21, wherein said container, when closed, is pressure-proof.
Dependencies are inferred from the claim text.