RU2368424C1 - Dust extractor - Google Patents

Abstract

FIELD: metallurgy.

SUBSTANCE: dust extractor includes cylinder-taper casing with branches for supply of powder-gas mixture, withdrawal of treated gas and discharge of dust, electromagnetic dust collection system, spiral guide of powder-gas mixture movement, cellular core, locking sleeve and rests, installed between barrel and cellular core. Dust extractor is implemented of top cylinder-taper butt with flange and branch for withdrawal of treated gas, dust catching unit with flanges and with branch for supply of powder-gas mixture and bottom cylinder-taper butt with flange and branch for dust withdrawal. Dust catching unit is assembled on separate stand in composition of cylinder with flanges and branches for supply of powder-gas mixture. On it on the outside it is installed electromagnetic system with magnetic conductors, inside there are installed spiral guide for movement of powder-gas mixture, rest of cellular core made of nonferromagnetic material, cellular core in the form of vertical strips made of ferromagnetic material, installed on-the-mitre to movement of powder-gas mixture, and locking sleeve.

EFFECT: effectiveness increase of dust collecting and simplification of equipment mounting.

2 dwg

Description

The invention relates to ferrous metallurgy, in particular to a device for cleaning blast furnace gas blast furnaces.

A known dust collector for semi-fine gas cleaning, including a cylindrical housing with nozzles for supplying a dust-gas mixture and removal of purified gas, nozzles for spraying water and a nozzle for draining the pulp through a water lock (1).

The disadvantage of this dust collector in the formation of waterlogged sludge, unsuitable for disposal without prior preparation.

The closest in technical essence to the proposed device is a dust collector, including a cylindrical housing with nozzles for supplying a dust-gas mixture, removing purified gas and releasing dust, an electromagnetic traveling magnetic field system, a spiral gas guide, a locking cup and a cellular core, on the inner surface of the housing in the magnetic field, supports made of non-ferromagnetic material are installed, and the cellular core is installed between the supports and the spiral guide (2).

The disadvantage of this dust collector is the lack of magnetic circuits inside the dust collector, which reduces the efficiency of dust collection, and the difficulty of installing large equipment units on industrial dust collectors.

The technical task of the proposed device is to increase the efficiency of dust collection and simplify the installation of equipment of the dust collection system on modern powerful dust collectors.

The technical solution consists in the fact that in a known dust collector including a cylinder-conical housing with nozzles for supplying a dust-gas mixture, removal of purified gas and dust, the dust collector is made of an upper cylinder-conical end with a flange and a nozzle for removing purified gas, a dust collecting unit with flanges and a nozzle for supplying a dust-gas mixture and a lower cylinder-conical end with a flange and a nozzle for exhausting dust, the dust collection unit is assembled on a separate stand as part of a cylinder with flanges and a cartridge a dust and gas mixture supply side, on which an electromagnetic system with magnetic circuits is installed outside, a spiral guide of the dust and gas mixture movement, supports of a cellular core of non-ferromagnetic material, a cellular core in the form of vertical strips of ferromagnetic material installed at an angle to the movement of the dust and gas mixture, and a locking cup are installed inside .

Assembly on a separate stand in a cylinder with flanges of all dust collection equipment greatly simplifies the preparation of equipment for installation on the lower cylinder-conical end, and the manufacture of a cellular core in the form of vertical stripes acting as magnetic circuits inside the housing increases the dust collection efficiency.

The proposed device is generally shown in FIG. 1 and FIG. 2 and consists of an upper end 1 with a flange 13 and a purified gas outlet pipe 16 with flanges 14, a dust collection unit in the cylinder 4 with flanges 5 and 13 and a pipe 2 for receipt of a dust and gas mixture with flanges 3, on which an electromagnetic system 11 with magnetic circuits 9 is mounted on the outside, and inside a spiral guide 12 for moving the dust and gas mixture, a cellular core 10 made in the form of vertical strips of ferromagnetic material installed at an angle to the direction the movement of the dust mixture on the supports 15 of the honeycomb core, the locking cup 8, the lower cylindrical end face 6 with the dust outlet 7 and the flange 5.

Improving the efficiency of dust collection is ensured by the displacement of dust by centrifugal forces to the periphery of the stream, dust collection by an electromagnetic field of increased tension, provided by magnetic cores - vertical stripes, the dust is blocked by the cellular core in the electromagnetic field and directed to the dust removal pipe.

Literature

1. Directory of "blast furnace production" under the editorship of ac. I.P. Bardina. Moscow: Metallurgizdat, 1963, v. 2, p. 219.

2. RF patent No. 2270724, B03C 1/24.

Claims (1)

A dust collector comprising a cylindrical conical housing with nozzles for supplying a dust and gas mixture, removal of purified gas and dust, an electromagnetic dust collection system, a spiral guide for moving the dust and gas mixture, a mesh core, a locking cup and supports mounted between the cylindrical housing and the cellular core, characterized in that the dust collector is made of an upper cylindrical conical end with a flange and a pipe for removing purified gas, a dust collection unit with flanges and with a pipe for supplying a dust-gas mixture and a lower cylinder-conical end face with a flange and a dust discharge pipe, the dust collection unit being assembled on a separate stand as a part of a cylinder with flanges and a dust-gas mixture supply pipe, on which an electromagnetic system with magnetic circuits is installed on the outside, a spiral guide for moving the dust-gas mixture is installed inside, supports of a cellular core of non-ferromagnetic material, a cellular core in the form of vertical strips of ferromagnetic material, installed at an angle to the movement of legazovoy mixture, and the locking tumbler.

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