Physical Parameters of the Raw Sand Mixture, Significant for Its Washing Treatment
DOI:
https://doi.org/10.9734/bpi/cteics/v1/6064EKeywords:
Two-phase liquid - solid particles system, mixing and dispersing principle, clay extraction discharge rate, purified sand humidity, power consumptionAbstract
This chapter evaluate the Physical Parameters of the Raw Sand Mixture, Significant for its Washing Treatment. Mixing and dispersing are one of the most energy-intensive and expensive operations used in bulk material classifiers, machines designed for washing sand and separating clay and other equipment in the relevant field. Therefore, the rational hardware design of these processes has a significant impact on the economy not only of such auxiliary processes as preparation for the use of construction sand, but also on the overall product cost.
The parameters of the rate of discharge of clay extraction and the power consumed for washing sand do not change linearly depending on the geometric parameters of the working volume, and the parameter of the speed of rotation of the liquid with untreated sand has a linear character of change.
The linear change in the rotation speed of the liquid with uncleaned sand is provided that when filling the working volume with liquid, the diameter formed by the rotational movement of the liquid flow is equal to the diameter of the working volume of the washing machine.
When constructing an automatic control system for sand washing, it is necessary to ensure stabilization by such basic indicators as the required sand-clay ratio, the humidity of the cleaned sand, power consumption, etc.
