PRESSING CRUSHER Russian patent published in 1995 - IPC

FIELD: manufacture of building materials. SUBSTANCE: pressing crusher has two rollers 1 and 2 mounted with a gap in jacket 3 having loading throat 4. A feeding gate valve consisting of horizontal traction plates 5 and 6 and a packet of vertical plates is set under the loading throat. The traction plates are hinged by means of a leverage with the supports of the movable roller. Rolling solids of revolution 11 and 12 are disposed in the lower part of vertical plates 9 and 10 for feeding the material into the working gap between the rollers. The plates duplicate the roller profile. The plates themselves are mounted spring-loaded between plates 13 and 14. There are transverse 15 and sloped 16 protrusion on the working surface of the vertical plates coming in contact with the material. The height values of the transverse and sloped protrusions are connected with the relationship (H-h)≥ 0,5 D_max,, where H, h are the heights of the sloped and transverse protrusions, correspondingly, D_max - the dimension of the maximum piece of the ground material. EFFECT: enhanced efficiency of grinding the brittle rocks. 3 cl, 3 dwg