SU1473856A1 - Magnetic separator - Google Patents

Abstract

The invention relates to the enrichment of highly magnetic ores and improves the efficiency of the process and reduces the wear of the drum lining by improving the discharge of the magnetic product. On the surface of a non-magnetic drum (B) 1, lined with a layer 2 of a non-magnetic material, there are plates 3 of a ferromagnetic material with a thickness of 0.0001-0.01 of diameter B 1. Inside B 1 there is a magnetic system in the form of rm 4 fixed to it the main constants magnets (M) 5 and placed between the main additional M 6. A device 7 is installed above B 1 for loading the source material, and B 1 for devices 8 and 9 for unloading magnetic and non-magnetic products, respectively. The last row of 10 M 6, located above the fixture 8, faces M 5 opposite poles. The source material arrives at the surface B 1. The non-magnetic product is discharged into the device 9, the magnetic material is attracted to the surface B 1 and transported to the discharge area. When plates 3 pass over the last row of M 6, a negative gradient of magnetic field strength appears. As a consequence, there is a complete unloading of the extracted magnetic product. 3 il.

Description

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B 1 is equipped with a device 7 for loading the source material, under B 1 - devices 8 and 9 for unloading, respectively, magnetic and non-magnetic products. The last row of 10 M 6, located above the fixture 8, faces M 5 opposite poles. The source material arrives at surface B 1. The non-magnetic product discharged in the invention relates to the separation of materials according to magnetic properties and can be used to enrich highly magnetic ores.

The purpose of the invention is to increase the efficiency of the separation process and reduce the wear of the lining by improving the unloading of the magnetic product.

Figure 1 shows the separator, a cross-section; in Figure 2, the mutual arrangement of the main and additional magnets in FIG. 3 is a picture of the floor when the ferromagnetic plate is located opposite the additional magnets.

The magnetic separator includes a non-magnetic drum 1 lined with a layer of non-magnetic material (rubber) 2, ferromagnetic plates 3 located between the lining and the outer surface of the drum 1, a magnetic system consisting of a roma 4, main magnets 5 rigidly fixed on it and placed between them magnets 6, boot 7 and discharge 8, 9 devices of magnetic and non-magnetic products, respectively.

The last series of 10 additional magnets 6, located above the device 8, in the zone of unloading of the magnetic product faces the main magnets 5 opposite poles.

The device works as follows.

The initial mixture from the loading device 7 enters the work 3856

tool 9, the magnetic is attracted to the surface B 1 and transported to the discharge area. When plates 3 pass over the last row of M 6, a negative gradient of magnetic field strength appears. As a consequence, there is a complete unloading of the extracted magnetic product. 3 il.

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I feel the surface of drum 1 where it flocculates. Next, the mixture is transported by the drum 1 and as it rotates, the magnetic material is reoriented and the nonmetallic material is intensively released from the mixture under the action of centrifugal and other mechanical forces. Particularly intense release of non-metallic material from the mixture occurs when the ferromagnetic plates are incident (fig. 3). The bulk of the non-metallic material from the mixture is released in the first quadrant of the drum, and the magnetic part, pressed by the magnetic force of the system, is transported by the drum to the discharge part. A portion of the magnetic material is discharged in the region of the last row of 10 additional magnets 6, where the strength and strength of the magnetic field are reduced. However, the main part of the magnetic material on the surface of the working body remains and is transported further. In the case of the incident of the plate 3, the negative gradient of the magnetic field appears in the region of the last row of 10 additional magnets 6, under the action of which and the sum of mechanical forces the surface is cleaned of magnetic material, down to fine magnetite particles. Intensive unloading of the magnetic material under the action of a negative magnetic field gradient helps to reduce drum linings, better cleaning the surface of the drum, thereby increasing the efficiency of the magnetic separation process.

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1473856

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M o c s tema PL FU ra ti ni

Magnetic separator including a working body in the form of a non-magnetic drum lined with a layer of wear-resistant material, a magnetic system located inside it, consisting of a frame and rigidly fixed on it a series of main permanent magnets with alternating polarity of the poles and placed between the main additional magnets, ferromagnetic The plates, the loading device and located under the drum 5 of the magnetic product face the main device for unloading magnets with opposite poles.

magnetic and non-magnetic products, characterized in that, in order to increase the efficiency of the separation process, reduce liner wear by improving the unloading of the magnetic product, ferromagnetic plates are installed between the lining layer and the outer surface of the working member, the plate thickness being 0.0001-0.01 working body, the last series of additional magnets located above the device for unloading

Claims (1)

Claim Magnetic separator, including a working element in the form of a non-magnetic drum, lined with a layer of wear-resistant material, a magnetic system located inside it, consisting of a yoke and rows of main permanent magnets with alternating polarity of poles rigidly mounted on it and interposed between the main additional magnets, ferromagnetic plates, loading device and devices located under the drum for unloading magnetic and non-magnetic products, characterized in that, in order to increase the efficiency in particular, the process of separation and reduction of lining wear by improving the unloading of the magnetic product, ferromagnetic plates are installed between the lining layer and the outer surface of the working body, the thickness of the plates being 0.0001-0.01 diameters of the working body, the last row of additional magnets located above device for unloading a magnetic product, facing the main magnets with opposite poles. fig.Z