Processing equipment for grinding of building powders

International Conference on Mechanical Engineering, Automation and Control Systems 2017

机械制造;无线电电子学;计算机科学

Fediuk, R.S.^1 ; Ibragimov, R.A.^2 ; Lesovik, V.S.^3 ; Pak, A.A.^1 ; Krylov, V.V.^1 ; Poleschuk, M.M.^1 ; Stoyushko, N.Y.^1 ; Gladkova, N.A.^1

Far Eastern Federal University, Sukhanova str. 8, Vladivostok

690950, Russia^1

Kazan State University of Architecture and Engineering, Zelenaia str 1, Kazan

420043, Russia^2

Belgorod State Technological University after V.G. Shoukhov, Kostyukova str 46, Belgorod

308012, Russia^3

关键词: Chemical activities;    Composite binders;    Inter-molecular forces;    Mechanical activation;    Mechanical grinding;    Mechanical process;    Mineral materials;    Processing equipment;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/327/4/042029/pdf
DOI  :  10.1088/1757-899X/327/4/042029

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

In the article questions of mechanical grinding up to nanosize of building powder materials are considered. In the process of mechanoactivation of the composite binder, active molecules of cement minerals arise when molecular packets are destroyed in the areas of defects and loosening of the metastable phase during decompensation of intermolecular forces. The process is accompanied by a change in the kinetics of hardening Portland cement. Mechanical processes in the grinding of mineral materials cause, together with an increase in their surface energy, the growth of the isobaric potential of the powders and, accordingly, their chemical activity, which also contributes to high adhesion strength when they come into contact with binders. Thus, a set of measures for mechanical activation allows more fully use the mass of components of the filled cement systems and regulate their properties. At relatively low costs, it is possible to provide an impressive and, importantly, easily repeatable in production conditions result. It is revealed that the use of a vario-planetary mill allows to achieve the best results on grinding the powder building materials.