Centrifugation type separation mesh-free material and bead separation medium stirring mill

Abstract

The invention relates to a centrifugation type separation mesh-free material and bead separation medium stirring mill, which comprises a rotation joint 1, a hollow inner shaft 2, an outer shaft 3, an outer shaft seal 4, an inner shaft seal 5, a separation turbine 6, a rotor 7, and an inner stator 8. According to the present invention, the inner shaft drives the separation turbine, grinding beads and materials having coarse particles to be thrown out through centrifugal force produced by the turbine, materials having fine particles enter an inner shaft material outlet hole through overcoming the turbine centrifugal force under a material feeding pump pressure effect and are discharged, the outer shaft drives the rotor to rotate to provide a stirring grinding effect, centrifugal force produced by a plurality of eddy flow grooves of the rotor drives a fluid to perform circulation flows in a radial direction, an axial direction and a circumferential direction inside a cylinder, and the stator provided with helically aligned pins provides a stirring grinding effect and drives the fluid driven to perform the circumferential movement by the rotor to present helical and upward movement to flow into the inner cavity of a rotor turbine so as to enter the next grinding cycle. With the centrifugation type separation mesh-free material and bead separation medium stirring mill, grinding efficiency is substantially increased and is not affected by the size of the grinding beads, a particle size of the one-time grinding product is significantly reduced, and a yield of the centrifugation type separation mesh-free material and bead separation medium stirring mill can be increased by 50-100% compared with the conventional mill.

Description

technical field [0001] The invention belongs to the field of media agitation and grinding equipment, in particular to a centrifugal type non-intermediate material bead separation media agitation mill. Background technique [0002] At present, the conventional medium-stirred abrasive bead separation devices mainly include dynamic and static ring-type gap separation methods, mesh-type static separation and laminated gap separation methods, which are widely used in coatings, inks, dyes, mining, biology, medicine, In the field of ultrafine grinding of electronic materials. The dynamic and static ring gap separation method only forms an annular discharge gap between the dynamic ring and the static partition ring. Due to the limited discharge space, under the action of the feed pump, many grinding beads accumulate around the screen separator and rub against each other to generate a large amount of material. The heat will increase the temperature of the slurry to be ground, and at...

AI Technical Summary

Problems solved by technology

The dynamic and static ring gap separation method only forms an annular discharge gap between the dynamic ring and the static partition ring. Due to the limited discharge space, under the action of the feed pump, many grinding beads accumulate around the screen separator and rub against each other to generate a large amount of material. The heat will increase the temperature of the slurry to be ground, and at the same time block the discharge of the material, resulting in a decrease in grinding efficiency

Although the screen-type static separation method and the lamination seam separation method can increase the discharge space according to the diameter or length of the screen, but due to the static discharge method, when encountering slurry with high viscosity or high consistency, the sticky Thick material will block the screen holes due to adhesion, making the separation device invalid

The original three methods all adopt the method of separating the grinding beads and the material with a screen or a gap, resulting in low discharge efficiency, and the materials retained in the grinding chamber are repeatedly ground, resulting in too high temperature of the slurry in the grinding chamber, which can make some materials (e.g. heat-sensitive materials) grinding is limited

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