Аuthors: A. A. EVDOKIMOV, graduate student,
Kurgan State Agricultural Academy of T. S. Maltsev (641300, Kurgan reg., Ketovskii dist., Lesnikovo),
V. I. CHARYKOV, doctor of technical sciences, professor,
Kurgan State University (25 Gogolya Str., 640669, Kurgan)
Abstract: The design and creation of the resource-saving machines and technologies for cleaning the coolants is one of the main tasks today. In the Kurgan State Agricultural Academy through the analysis of the existing constructions there was devel- oped an UMS-4M electromagnetic separator which was designed for the purification of the liquid materials from the metal- lomagnetic inclusions. A distinctive feature of this installation is the usage of the magnetic field concentrators to extract the metallomagnetic particles which allows creating high-gradient inhomogeneous magnetic field. The separation zone is located in a closed contour that runs on direct current. The method of the least squares is applied for the calculation of the magnetic induction in the interpolar space of the separator. The experimental value of the magnetic field induction was determined by measuring it in the interpolar space of the separator using the milliteslametr TP2-2U. The experimental values of the magnetic field induction without a concentrator are Вmax = 130 mTl, Вmin = 42 mTl; with a concentrator Вmax = 130 mTl, Вmin = 94 mTl. The calculated values of the magnetic field induction without a concentrator are Вmax = 130 mTl, Вmin = 42.86222 mTl; with a concentrator Вmax = 130 mTl, Вmin = 93.29312 mTl. The analysis of the distribution of the magnetic field induction in the interpolar gap of the separator shows that using the magnetic field hub helps the magnetic induction to increase by 57 %. The studies which were carried out have shown that the maximum value of the magnetic induction is located near the pole tips and the magnetic field concentrator can distribute the magnetic induction not only along the length of the working chan- nel (gutter), but also along the height of it. As the result of the work the electromagnetic separator UMS-4M was developed for the purification of the coolants. It was put into running exploitation at the agricultural enterprise farm (“Krestyanskoye Khozyaistvo”) Uzunkol District, Kostanai region, Kazakhstan Republic and at the Ltd. (LLC) engineering company “Kurgan Hardware Plant” “SibMash” Kurgan.
Keywords: electromagnetic separator, magnetic induction, magnetic force, hub / concentrator, mechanical part, work area, dependence.
