| abstract |
The invention relates to a device for mineral processing and may be. used in coal, mining, metallurgical, construction, chemical and other industries. The purpose of the invention is to increase the efficiency of the separation of materials. Above the box 1 with sieves (C) 2 and 3 there is a loading hopper (B), which has C 7 preliminary classification. At the same time: C 7 is made with holes smaller or equal in size to the smallest holes C 3, has a conical shape, with its top upwards, and is placed in B with a gap between the walls B and the base of its screening surface. Iodine C 7 is installed a pallet 8 with a nozzle 9 for removal of small i (L |