Vertical centrifugal mill

Abstract

The invention discloses a vertical centrifugal mill, and relates to an energy-saving single-layer vertical centrifugal mill to overcome the defects of existing floating powder grinding machines, planet vertical mills, Raymond mills and other multi-layer annular powder grinding machines. A feeding device rotating at constant speed is arranged on the upper portion of the vertical centrifugal mill. A star-shaped support is arranged on a spindle and provided with four or more roll wheels capable of swinging freely. A commutator is arranged on the lower portion of the spindle and connected with a gear motor through a universal coupler. The vertical centrifugal mill can be suitable for crushing materials of different hardnesses and meanwhile can produce products of different finenesses, sand can be manufactured, and powder can be ground as well. The vertical centrifugal mill has the beneficial effects that even feeding is achieved, and dry grinding of the roll wheels and grinding rings can be avoided; the rotating speed of a feeding hopper is low, so that the impact of materials on a barrel is small, and noise is low; and the speed of the roll wheels can be adjusted, centrifugal force can be adjusted according to the hardness conditions of the materials, and the application range of the products is wide.

Description

technical field [0001] The invention relates to a sand-making and powder-making equipment, in particular to a vertical centrifugal mill, which adopts the mixed action of centrifugal force and shearing force for high-efficiency sand-making and powder-milling. Background technique [0002] The pulverizers reported in the existing Chinese patent documents are of a great variety, and vertical mills mainly include floating mills, Raymond mills, etc. [0003] The basic principle is that the central shaft drives the rollers to rotate at high speed, and the rollers rely on the centrifugal force generated by the rotation to squeeze the freely falling materials and make them broken. Since the rollers of each layer are driven by the central shaft, they act on the material at a constant pressure, so that the material with small particles and high hardness can never be crushed, and the next layer can only crush the material from the previous layer. Coarse particles are ground to the fin...

AI Technical Summary

Problems solved by technology

[0009] The invention aims at the defects of the existing floating mill, planetary vertical mill, Raymond mill and other multi-layer ring milling mills. It has high operating efficiency, reasonable structure, low energy consumption and easy replacement of wearing parts. Convenient, energy-saving single-layer vertical centrifugal mill that can be used for both sand making and powder grinding

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