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A cryogenic vibratory mill designed to receive cooling fluid such as liquid nitrogen within a grinding chamber for grinding of feed material such as crumb rubber from vehicle tires for cryogenic comminution within a grinding chamber. Cooling within the grinding chamber is achieved by passing cooling

A cryogenic vibratory mill designed to receive cooling fluid such as liquid nitrogen within a grinding chamber for grinding of feed material such as crumb rubber from vehicle tires for cryogenic comminution within a grinding chamber. Cooling within the grinding chamber is achieved by passing cooling fluid such as liquid nitrogen therethrough wherein most of the cooling fluid passes through longitudinal channels formed longitudinally in the cylindrically shaped grinding rods. The operating temperature is normally less than -120 degrees Fahrenheit. A vibrating drive is operative to vibrate the housing and the grinding rods therein to achieve comminution of the feed stock rubber passing therethrough. With this design most of the cooling is achieved by passing of the cooling fluid through the channels defined in the grinding rods with only a minimum amount of cooling achieved by cooling fluid passing through the grinding chamber between the rods.

대표청구항 ▼

An improved cryogenic vibratory mill apparatus, for receiving cooling fluid therein for cryogenic comminution of feed material supplied thereto, comprising: A. a housing means defining a grinding chamber means therein, said housing means defining a material inlet means in fluid flow communication wi

An improved cryogenic vibratory mill apparatus, for receiving cooling fluid therein for cryogenic comminution of feed material supplied thereto, comprising: A. a housing means defining a grinding chamber means therein, said housing means defining a material inlet means in fluid flow communication with respect to said grinding chamber means to receive feed material passing therethrough for facilitating movement thereof into said grinding chamber means, said housing means further defining a material outlet means in fluid flow communication with respect to said grinding chamber means to receive material therefrom for exiting therefrom, said housing means further defining a cooling fluid inlet means in fluid flow communication with respect to said grinding chamber means, said cooling fluid inlet means for receiving cooling fluid for passing therethrough, said housing means further defining a cooling fluid outlet means in fluid flow communication with respect to said grinder chamber means and for allowing cooling fluid to exit therefrom; a cooling fluid distribution means for receiving cooling fluid passing through said cooling fluid inlet means for distribution thereof within said grinding chamber means; C. a plurality of longitudinal grinding members each defining a channel means extending longitudinally therethrough, said longitudinal grinding members further defining a channel inlet means and a channel outlet means in fluid flow communication with respect to said channel means to facilitate flow of fluid therethrough, said channel inlet means being operatively positioned relative to said cooling fluid distribution means and in fluid flow communication therewith to receive cooling fluid therefrom for passing of the cooling fluid through said channel means and exiting therefrom through said channel outlet means to facilitate cooling along the length of said longitudinal grinding members; and D. a vibrating means operatively attached with respect to said housing means for vibrating thereof and for urging movement of said longitudinal grinding members within said grinding chamber means to facilitate comminution of material positioned within said grinding chamber means.