DEVICE FOR DIGITALIZING CONTROL OF CONTENT OF MAGNETIC PARTICLES IN FLUID MEDIUM Russian patent published in 2021 - IPC B03B13/04 B03C1/02 

FIELD: physical-chemical analysis.

SUBSTANCE: proposed invention relates to the field of monitoring the content of magnetically susceptible (magnetic) particles in samples of various fluid (bulk, liquid, gaseous) media by postoperative magnetic separation of particle fraction masses with pronounced magnetic properties, and subsequent analysis of the obtained mass-operational data. It can be used in the practice of laboratory analysis of the fractional composition of different media to identify and determine the concentration (mass fraction) of the fraction of magnetic particles, which is in demand, in particular when solving problems of magnetic enrichment of ores, removal of harmful iron-containing impurities from food products, raw materials of glass and ceramics production, gas emissions from welding and metal cutting production sites. A device for digitalizing the control of the content of magnetic particles in a fluid by the mass of particles released from a sample of the medium contains an executive magnetic separator, including a working channel formed by limiting surfaces for the flow of the separated medium with at least three sequentially arranged sources of equivalent magnetic action with pole surfaces facing the flow of the separated medium, a means with an appropriate number of nodes for the operational determination of the mass of the released particles, providing for measuring the electrical capacity of the volume, where the separation of particles is realized, and a system unit connected to this tool for digitalization of monitoring the content of magnetic particles in a fluid sample with the functions of visualizing the obtained analytical dependence of the operational masses of the isolated particles, extrapolating this dependence, integrating the isolated and extrapolated data of the operational masses. The limiting surfaces of the working channel are made of a material that does not have electrically conductive properties. Each of the nodes of the means of operational determination of the actual mass of the released particles is made in the form of an electric circuit with a capacitor, in which one of the opposing elements is the pole surface of a source of magnetic influence on the flow having electrically conductive properties, and the second element is an additionally installed electrically conductive plate. The electric capacity meter contained in this circuit is graded in units of the mass of particles released and accumulated in the volume between the pole surface and the plate.

EFFECT: increase in the accuracy of monitoring the content of magnetic particles in the fluid.

3 cl, 1 dwg