The present scenario is handling the communities dealing with ultrafine level cement particle which are as minute as upto 220 nm and these are made by utilizing the bead milling process, which is taken down into account as one of the top-down nanotechnology. At the time of grinding of cement particle, different types of effects are been scrutinized like time of grinding and agent for grinding (methanol or ethanol). The performance of this recently created ultrafine cement is implicitly clarified and explained by the chemical composition, size distribution of particle, SEM(Scanning Electron Microscope) and XRD(X-ray Diffraction) analyses. Based on the size of the particles of newly developed superfine cement, it was reviewed that with the increase in grinding time, the size of the particles decreases. Moreover, it’s optimized that the bead milling produces cement tiny parts out of which 90% is less than 350 nm and 50% of them is less than 220 nm, respectively, after hours of milling. On production of this ultrafine cement, the construction industry can move a step ahead towards the development of a smart and sustainable construction material.
The parameters like bead loading, peripheral velocity and bead size have a huge control on the kinetic activities of cell commotion in a bead mill. The bead mill is provided with a single rotating disc and is operated batch by batch. By analyzing the data, we found that the frequency of bead collision may be interrelated to the first-order process, applying a brand new idea called effective disruption volume. It had been seen that the constant of first-order rate was directly proportional to the square of bead loading which increases with the reduction in bead diameter. New disruption kinetics was projected, explaining all the data in terms of the frequency of bead collision and also the idea of effective disruption volume. Although alternative varieties of microorganisms weren’t examined, the concept can be extended to varied forms of cells.
The Vertical Bead Mill is fed with the material from the bottom of the chamber and again out from higher part of the chamber. Due to its specific gravity, the grinding beads move all the way down to form an improved circulation. After that the raw materials in forced from a very narrow space and blown by high speed accelerated beads. This up and down convection and the high speed circulation by disc, the beads will disperse and emulsify completely in the pressure chamber. This function of up & down convection cuts short the grinding time to reach the particle size under 5 microns, of course, it’ll have more output producing capacity than horizontal bead mill. In general, Vertical bead mill will have more output producing capacity about 40-50% than horizontal bead mill when compare by an equivalently same model size.
The difference of designing structure between vertical bead mill and horizontal bead mill, is not much. In the above some points are mentioned on both the type of mill. This can help yu to know the difference between both of them.by