Technology for producing nanomaterials taking into account anisotropicstructure of raw materials

Abstract

The article gives detailed analysis of theoretical statements that exist nowadays and practice experience in the sphere of grinding materials to the nanosize. There is a technological scheme of the production of nanomaterials by the traditional method, which consists of two phases of grinding: pre-grinding and deagglomeration of a pressed plate in the press-roll shredder and, finally, grinding in the rotor-vortex mill, operating in a closed cycle with a separator. The authors describe the construction of the press-roll shredder with a device for deagglomeration of the pressed plate of materials. This article presents the scheme and device operation. The authors also considered the issues of improving the efficiency by grinding materials with anisotropic texture. The main peculiarity of the specific features and conditions of organization of the process of grinding conditions, including the loading of materials with the anisotropic structure, the direction of their movement and the application of power load, was considered. The authors consider the conditions for the destruction of the anisotropic material between the eccentrically mounted rollers and an equation for the calculation of the specific force required to fracture anisotropic materials in the eccentric rolls PVI. The comparative data values of the specific quantities of grinding pressure during grinding organogenic limestone were revealed. Keywords - technology for the production of nanomaterial with use of traditional assemblies: press-roll shredder and rotor-vortex mill, roller press mill with a device for feeding direction, anisotropic materials, grinding effort.

The article gives detailed analysis of theoretical statements that exist nowadays and practice experience in the sphere of grinding materials to the nanosize. There is a technological scheme of the production of nanomaterials by the traditional method, which consists of two phases of grinding: pre-grinding and deagglomeration of a pressed plate in the press-roll shredder and, finally, grinding in the rotor-vortex mill, operating in a closed cycle with a separator. The authors describe the construction of the press-roll shredder with a device for deagglomeration of the pressed plate of materials. This article presents the scheme and device operation. The authors also considered the issues of improving the efficiency by grinding materials with anisotropic texture. The main peculiarity of the specific features and conditions of organization of the process of grinding conditions, including the loading of materials with the anisotropic structure, the direction of their movement and the application of power load, was considered. The authors consider the conditions for the destruction of the anisotropic material between the eccentrically mounted rollers and an equation for the calculation of the specific force required to fracture anisotropic materials in the eccentric rolls PVI. The comparative data values of the specific quantities of grinding pressure during grinding organogenic limestone were revealed.