초록 ▼

Apparatus and method for separating carbon particles from flyash includes one of increasing a relative humidity of the flyash or decreasing the relative humidity of the flyash to within an optimum humidity range, and introducing the flyash within the optimum humidity range into a triboelectric separ

Apparatus and method for separating carbon particles from flyash includes one of increasing a relative humidity of the flyash or decreasing the relative humidity of the flyash to within an optimum humidity range, and introducing the flyash within the optimum humidity range into a triboelectric separator so as to triboelectrically charge the carbon particles and the flyash and so as to electrostatically separate the charged carbon particles from the charged flyash.

대표청구항 ▼

[ What is claimed is:] [1.] A method of separating carbon particles from flyash, comprising the steps of:controlling a relative humidity of the flyash by one of increasing a relative humidity of the flyash and decreasing the relative humidity of the flyash to within an optimum relative humidity rang

[ What is claimed is:] [1.] A method of separating carbon particles from flyash, comprising the steps of:controlling a relative humidity of the flyash by one of increasing a relative humidity of the flyash and decreasing the relative humidity of the flyash to within an optimum relative humidity range to produce a treated flyash; andintroducing the treated flyash into a triboelectric separator so as to triboelectrically charge the carbon particles and the flyash and electrostatically separate the charged carbon particles from the charged flyash. [14.] An apparatus for separating carbon particles from flyash, comprising:flyash treating means for one of increasing a relative humidity of the flyash and decreasing the relative humidity of the flyash to within an optimum relative humidity range to produce a treated flyash; anda triboelectric separator that receives the treated flyash and that triboelectrically charges the carbon particles and the flyash so as to electrostatically separate the charged carbon particles from the charged flyash. The apparatus as claimed in claim 14, wherein the flyash treating means includes a means for adding water to transport air, used to transport the flyash from a remote collection bin to the triboelectric separator. The apparatus as claimed in claim 14, wherein the flyash treating includes a means for adding water to the flyash at a feed point of the triboelectric separator. The apparatus as claimed in claim 14, wherein the flyash treating means includes a means for adding water to the flyash within an ash storage vessel feeding the triboelectric separator. The apparatus as claimed in claim 14, wherein a transport air is used to transport the flyash from a remote collection bin to the triboelectric separator and the flyash treating means includes a heater that heats the transport air prior to combining the transport air with the flyash. The apparatus as claimed in claim 18, wherein an air transport system, that transports the flyash from the remote collection bin to the triboelectric separator, is insulated so as to reduce heat loss of the transport air within the air transport system.