Dynamic rotary filtration device for shear thickening fluids

Abstract

A dynamic rotary filtration device includes a chamber for containing a shear-thickening fluid, a rotating disk axially mounted within the chamber, and filter media located below the rotating disk. The rotating disk has a special geometry that ensures a uniform distribution of shear force applied to the filter media. The minimum and maximum distances between the rotating disk and the filter media are located at the center and edge of the rotating disk, respectively. The distance between the rotating disk and the filter media gradually increases from the center towards the edge.

Claims

1. A dynamic rotating filter device, comprising: One chamber; A filter media is located within a chamber, dividing the chamber into a working space and a filtration space, the working space having a fixed diameter; a rotating disk is located within the working space and above the filter media, rotating with an axis; an inlet connects to the working space for the inflow of a shear-thickening fluid; a liquid concentration outlet connects to the working space for the outflow of the shear-thickening fluid that has not passed through the filter media; and a filtrate outlet connects to the filtration space for the outflow of filtrate. The filter media is not connected to the axis. The minimum distance between the rotating disk and the filter media is the center of the rotating disk, and the maximum distance between them is the edge of the rotating disk. The distance between the rotating disk and the filter media gradually increases from the center to the edge of the rotating disk. The rotating disk is configured such that the shear force exerted by the shear-thickening fluid on the filter media is uniformly distributed.

2. The dynamic rotating filter device of claim 1, wherein the rotating disk includes a cone, the minimum distance between the rotating disk and the filter media is a vertex of the cone, and the cone is circularly symmetrical about the vertex.

3. The dynamic rotating filter device of claim 1, wherein the surface of the rotating disk facing the filter media is an arc surface, the cross-sectional profile of the rotating disk includes an arc having two endpoints, the minimum distance between the rotating disk and the filter media is the center point of the arc, and the maximum distance between the rotating disk and the filter media is the two endpoints of the arc.

4. The dynamic rotary filter device of claim 1, wherein the cross-sectional profile of the rotary disk includes two inward curves, the two inward curves having a first endpoint and a second endpoint respectively, the first endpoint of the two inward curves being the center of the rotary disk, the minimum distance between the rotary disk and the filter media being the center of the rotary disk, and the maximum distance between the rotary disk and the filter media being the second endpoint of the two inward curves.

5. The dynamic rotating filter device of claim 1, wherein the rotating disk is composed of a plurality of stacked disks, wherein the diameter of each disk in the plurality of disks is larger than the diameter of the adjacent lower disk, and the lowermost disk in the plurality of disks is the disk closest to the filter media and has the smallest diameter.

6. The dynamic rotary filter device of any one of claims 2 to 5, wherein the filter media is divided into a plurality of regions, each region comprising one or more filter pores, the pore size of the one or more filter pores in each region being inversely proportional to the shear force applied to the region.

7. A dynamic rotary filter device as claimed in any of claims 2 to 5, wherein the rotating disk contains a filter medium and the shaft has another filtrate outlet communicating with the working space for the filtrate passing through the filter medium to flow out.

8. A dynamic rotating filter device, comprising: One chamber; A filter medium is located within a chamber, dividing the chamber into a working space and a filtration space, the working space having a fixed diameter; a rotating disk is located within the working space and above the filter medium, rotating with an axis; an inlet connects to the working space for the inflow of a shear-thickening fluid; a liquid concentration outlet connects to the working space for the outflow of shear-thickening fluid that has not passed through the filter medium; and a filtrate outlet connects to the filtration space for the outflow of filtrate. The filter medium is not connected to the axis. The minimum distance between the rotating disk and the filter medium is the center of the rotating disk, and the maximum distance between them is the edge of the rotating disk. The distance between the rotating disk and the filter medium gradually increases from the center to the edge of the rotating disk. The rotating disk is configured such that the shear force exerted by the shear-thickening fluid on the filter medium is uniformly distributed. The filter media is divided into multiple regions, each region containing one or more filter pores. The pore size of the one or more filter pores in each region is inversely proportional to the shear force applied to the region, thereby ensuring that the filtration rate of the filtrate through the multiple regions is consistent.

9. A dynamic rotating filter device, comprising: A chamber includes: a filter medium located within the chamber, dividing the chamber into a working space and a filtration space; the working space having a fixed-diameter inlet connected to the working space for the inflow of a shear-thickening fluid; a rotating disk located within the working space and above the filter medium, rotatable with an axis containing a filter medium; the axis having a first filtrate outlet connected to the chamber for the outflow of filtrate passing through the filter medium; the filter medium not connected to the axis; a liquid concentration outlet connected to the working space for the outflow of the shear-thickening fluid that has not passed through the filter medium and the filter media; and a second filtrate outlet connected to the filtration space for the outflow of filtrate passing through the filter media; wherein, in the vertical cross-sectional profile of the rotating disk, the center of the rotating disk is the lowest point, and the profile from the center of the rotating disk to the edge of the rotating disk is an increasing function; the rotating disk is configured such that the shear force exerted by the shear-thickening fluid on the filter media is uniformly distributed.

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