| 摘要 |
A multi-screen is provided to classify materials according to the size of particles during treating the construction material or waste materials, as the multi-screen is produced in the shape of a wire net. A multi-screen for classifying aggregates is composed of: a screen net(10) having small holes; a screen net(20) connected to the small screen net and provided with holes larger than the holes of the screen net, in order to screen aggregates bigger than the hole of the screen net, moving through the small screen net; a vibrating unit for vibrating the screen nets; and an aggregate supply unit for feeding the aggregates to the screen nets. The small screen net having the small holes is connected to one screen net. A screen net(30) having largest holes is connected in the center. The screen net having holes smaller than the largest holes is connected at the lower part of the screen net having largest holes. Or, the screen nets having the largest, middle, and small holes are aligned in order. |
