RU2358809C2 - Dust separator - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: proposed dust separator incorporates tapered cylinder casing with dust-gas mix feed branch pipes, gas and dust discharge branch pipes, electromagnetic dust separation system with electromagnetic circuits. The separator comprises also a cellular ferromagnetic core, thrust ribs to mount the dust separation electromagnetic system and cellular core. Note that dust-gas feed branch pipe incorporates a non-ferromagnetic material diffuser with its lower part arranged at the level of cellular core bottom. Note also that it is furnished with a cone with the diffuser to direct dust-gas flow into electromagnetic field.

EFFECT: complete extraction of required component from dust-gas mix.

2 dwg

Description

The invention relates to ferrous metallurgy, in particular to the separation of ore mixtures according to their magnetic susceptibility.

Known cyclone electromagnetic separator, including a cylindrical housing with loading and unloading nozzles, a traveling magnetic field system located on the outside, an internal corrugated surface, a spiral flow guide, a locking cup [1].

The disadvantage of this device is the possibility of getting into a suitable product of waste rock under the action of centrifugal forces.

The closest in technical essence to the present invention is a dust collector comprising a cylinder-conical housing with nozzles for receiving a dust-gas mixture, a gas outlet and a dust outlet, an electromagnetic dust collection system with magnetic circuits, a mesh core made of ferromagnetic material, thrust ribs, a nozzle for receiving a dust-gas mixture a diffuser made of non-ferromagnetic material, the lower part of which is located at the level of the bottom of the cellular core [2].

The dust is extracted from the dust and gas stream in an electromagnetic field, depending on the magnetic susceptibility of the materials, which makes it possible to divide the mixture of materials into component components.

The disadvantage of this device is the deposition of a significant amount of dust under the influence of gravitational forces without separation into constituent components.

The technical task of the invention is the complete selection of the necessary component from the entire supplied dust and gas mixture.

This goal is achieved by the fact that the well-known dust collector, including a cylinder-conical housing with nozzles for the intake of a dust-gas mixture, a gas outlet and a dust outlet, an electromagnetic dust collection system with magnetic cores, a cellular core made of ferromagnetic material, thrust ribs for mounting an electromagnetic dust collection system and a cellular core, the nozzle for the intake of the dust and gas mixture is made with a diffuser of non-ferromagnetic material, the lower part of which is located at the bottom of the mesh the core is further provided with guiding dust and gas flow in the electromagnetic field region with a diffuser cone.

Moreover, the guide cone with the diffuser is attached to the diffuser of the supply pipe of the dust and gas mixture or is mounted on supports fixed to the cylinder-conical housing, and the electromagnetic dust collection system with magnetic circuits, the mesh core and the stop ribs are mounted on the cylinder with flanges and installed in the assembly.

The proposed device is shown in FIGS. 1 and 2 and consists of a cylindrical-conical body 2 with nozzles 1, 8, 9 with a mounting window 4 through which a pipe 3 with flanges is mounted inside the housing. A cone with a diffuser 16 is attached to the nozzle with a diffuser 1 for supplying the dust and gas mixture. A cone 6 is guided to the supporting housing.

The dust collection unit is shown in FIG. 2 and includes a cylinder 10 with flanges, an electromagnetic system 11 with magnetic circuits 12 and 13, thrust ribs 14 and a mesh core 15.

The proposed device operates as follows. To precipitate dust with a known magnetic susceptibility, the electromagnetic system 11 creates an electromagnetic field of the required intensity. The dust-gas mixture through the pipe 1 enters the dust collector-separator and the diffusers of the pipe 1 and the cone 16 are sent to the gap between the cellular core 15 and the cylinder 10.

Dust with increased magnetic susceptibility is captured by the electromagnetic system 11 and deposited in the lower conical end.

Dust with reduced magnetic susceptibility is carried away by the gas stream through the pipe of the purified gas 8 and is used for further processing.

Information sources

1. Patent No. 2116137, B03C 1/24, 07.27.1998

2. Patent No. 2271869, B03C 1/24, 10/09/2003

Claims (1)

Dust collector-separator, which includes a cylindrical-conical housing with nozzles for the intake of a dust and gas mixture, gas outlet and dust discharge, an electromagnetic dust collection system with magnetic cores, a cellular core made of ferromagnetic material, thrust ribs for mounting an electromagnetic dust collection system and a cellular core, a nozzle for intake of a dust-gas mixture made with a diffuser of non-ferromagnetic material, the lower part of which is located at the bottom of the cellular core, is additionally equipped with branching the dust and gas stream into the zone of the electromagnetic field by a cone with a diffuser.

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