Method and device for grinding particulates
AssigneeIndustrial Technology Research Institute
InventorsTa-Hsin Chou, Wen-Yeu Lee, Lei-Yi Chen
Life of this patent
Estimating the term…
Abstract
A particulate grinding method and device applies different force fields to drive the grinding medium and the particulates move in different routes but collide only at a grinding area so that they are separated naturally without conventional screening mechanisms, such as a screen or a gap, and prevented from the limitation of mechanical size of the components. Moreover, the invention is applicable to finer particulates. The circulation of particulates is not limited by any small gap of screening mechanisms, so the particulates ill not block the separator.
Claims22
A particulate grinding method, comprising:
- supplying particulates and a dispersal liquid into a chamber;
- supplying a grinding medium into the chamber;
- providing a first force that acts primarily on the grinding medium as compared to its action on the particulates, to cause the grinding medium to flow in a grinding area in the chamber;
- providing and controlling a second force that acts primarily on the particulates as compared to its action on the grinding medium, to cause the particulates to pass through the grinding area, collide with the grinding medium, and circulate in a flow route so as to disperse the particulates;
- and
- outputting the particulates after grinding is finished.
A particulate grinding device, comprising:
- a generally closed chamber, having a particulate inlet and a particulate outlet, and a grinding area defined therein;
- a first driving mechanism for generating a first force that acts primarily on a grinding medium as compared to its action on particulates, to move the grinding medium in the grinding area;
- a second driving mechanism for generating a second force that acts primarily on the particulates as compared to its action on the grinding medium, to move the particulates from the particulate input, across the grinding area and out the particulate outlet;
- and
- a flow pipe, connected to said particulate inlet and said particulate outlet and forming a particulate circulation route having a filling port and an output port, said particulates being driven by the second force to flow into said chamber from said inlet and to collide with said grinding medium at said grinding area, said particulates being driven to leave said chamber through said outlet, flow into said flow pipe and circulate in said circulation route for further collision and dispersal, and finally flow out from said output port when being finished with grinding.
Dependencies are inferred from the claim text.