Process and device for wet milling of rocks and the like

Details Process and device for wet milling of rocks and the like Process and device for wet milling of rocks and the like

1980-09-04

1982-09-14

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 24, 241 41, 241 4604, 241 4615, 241117, B02C 1500

Patent

active

043491588

ABSTRACT:
A process, as well as a device for carrying out same, for grading-separating wet milling of rocks and the like in a mill having a vertical rotational shaft, a milling chamber widening downwards and outwards from a central outlet and one or more milling rollers interacting with the milling chamber, the replenishment of the pulp being done through constant feed. The pulp volume is regulated by displacing the upper edge of the outlet vertically, whereby control of the milling time is achieved so that particles can be kept a longer or shorter time in the milling chamber depending on the milling resistance and structure of the material fed in, thereby effecting a control according to particle type for continued milling of particles which are not completely milled, for example mineral-containing particles, and for discharging from the milling chamber completely milled particles and mineral grains. In the device, the milling chamber is separable from the central outlet at a selected height by means of a regulating member, for example a vertically adjustable shield. The device is provided with at least one wave dampener controlling and active in the surface layer of the pulp. The dampener is preferably a screen or water curtain.

REFERENCES:
patent: 281511 (1883-07-01), Howland

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