| 摘要 |
PURPOSE:To make it possible to realize uniform and fully dispersed state of fiber in a kneader by a method wherein tufts of artificial organic fibers, which are carried with a belt conveyer, are scraped off with a rotor, which is provided above the tip part of the conveyer and has a large number of projections, in nearly short fibers and, immediately after that, fed in material to be reinforced. CONSTITUTION:A scraping-off roller 4 is provided at the end of a belt conveyer 3. Tufts of fibers, which are carried with the belt 3, are scraped down by projections, which are provided on the surface of the rotor 4, so as to separate the tuft of fibers into nearly short fibers in order to fall down the separated fibers. In order to feed the scraped-down fibers in material to be reinforced with no stagnation, a method to send the scraped-down fibers to a fiber sending fan 6 is employed for pneumatically sending and feeding them to a kneader through pneumatic conveying piping. As a result, the fibers in the state of the tuft of fibers, are uniformly dispersed in the form of short fiber and uniformly mixed with cement without developing fiber balls. |
