Patent ID: 7513447
Filing Date: 2009-04-07
Classification: B02C

Abstract:
1. A muller comprising: a nozzle unit including a feed line and a hollow pipe line for surrounding the feed line and radially spaced from an outer surface of the feed line, the feed line having one end into which air of high pressure and very low temperature flows and the other end at which a nozzle is provided; a mulling unit connected to the nozzle at one end thereof, the mulling unit including a mulling head spaced from the nozzle on the same axis as the nozzle therein and a downwardly tapered, opened outlet; and an input device connected to the feed line at the middle of the nozzle unit, the input device including a hopper and a feeder for supplying a material to be processed, whereby the material inputted from the input device is mixed with the air within the feed line and injected from the nozzle to collide with the mulling heads, wherein the feed line and the hollow pipe line include a first feed line and a second feed line, and a first hollow pipe line and a second hollow pipe line, respectively, wherein the nozzle unit further includes: