Agitator mill
AssigneeNETZSCH-Feinmahltechnik GmbH
InventorsHolger Möschl, Robert Grandl
Life of this patent
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Abstract
An agitator mill including a milling chamber and a milling rotor, which forms a circumferential boundary wall of the milling chamber during operation. The milling elements are made to execute a milling movement in the milling chamber by the milling rotor. There is also a slit tube for removing the milled material while separating out the milling elements.
Claims9
An agitator mill comprising:
- a milling chamber;
- a milling rotor, which forms an outer circumferential boundary wall of the milling chamber during operation;
- milling elements, which are made to execute a milling movement in the milling chamber by the milling rotor;
- and
- a slit tube inside the milling rotor for removing the milled material while separating out the milling elements, wherein the slit tube is an axial slit tube comprising a plurality of axially-extending adjacent slit formers, each pair of which form a slit between their two long edges, to which slit a disruptive geometry is assigned, which causes a milling element rolling or sliding in the circumferential direction along the outer circumferential face of the slit tube to lift off from the outer circumferential face defined by the slit formers as it crosses the slit.
A method for use of a slit tube in an agitator mill comprising a milling chamber and a milling rotor, which forms an outer circumferential boundary wall of the milling chamber during operation, and milling elements, which are made to execute a milling movement in the milling chamber by the milling rotor, and a slit tube for removing the milled material while separating out the milling elements, wherein the slit tube is an axial slit tube, the adjacent slit formers of which form a slit between their two long edges, to which slit a disruptive geometry is assigned, which causes a milling element rolling or sliding in the circumferential direction along the outer circumferential face of the slit tube to lift off from the outer circumferential face defined by the slit formers as it crosses the slit, said method comprising:
- inserting the slit tube into the milling rotor;
- tumbling the milling elements and the material to be milled by rotating the milling rotor with the milling elements and the material to be milled inside the milling rotor;
- and
- separating the milled material from the milling elements by the milled material passing through the slits of the slit tube while the milling elements do not pass through the slits.
Dependencies are inferred from the claim text.