dust catcher in blast furnace

Air classification of blast furnace dust catcher dust for ...

2015-10-19 · The off-gas discharged from a blast furnace is de-dusted in a first stage by a dust catcher or a cyclone. The separated dust consists mainly of iron and coke. Therefore, most of this dust is recycled in the sinter plant. A higher Zn content of the dust is undesirable because the allowed Zn content in the sinter feed material is limited. The reduction of the Zn content of the

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Performance comparison of a blast furnace gravity dust ...

2013-8-30 · Blast furnace operation requires high efficiency top gas cleaning equipment to cope with changes to the top gas composition, dust loading, pressure and temperature fluctuations to match the campaign life of the furnace. The dust-catcher is the first of the major dust separation and cleaning devices, and functions to remove the majority of the ...

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Air classification of blast furnace dust catcher dust for ...

Blast furnace residues Introduction The blast furnace (BF) process is the most important pro-cess in integrated steel mills for the production of hot metal (pig iron). There the iron ore is reduced to metallic iron. The off-gas discharged from the BF, the so-called top-gas, is de-dusted in a first stage by the dust catcher which

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Performance comparison of a blast furnace gravity dust ...

A gravity dust-catcher is a high tonnage device that is widely used to separate a mixture of dusts from blast furnace (BF) top gas flow. Dusts include limestone, iron ore and coke/coal. For decades, the gravity dust-catcher has been the equipment of choice to clean blast furnace top gas generated from the energy intensive iron making process.

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Dust Catchers - ChestofBooks

Another dust catcher which uses the principle of having the gas impinge upon the surface of water is the invention of Mr. B. F. Mullen, of eetonia, Ohio. This dust catcher has had the widest application of any apparatus of its type. The design is shown in Fig. 182. The external shape of the apparatus is not unlike that of the standard dust catcher.

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Dust Catchers. Part 2 - chestofbooks

This dust catcher has given very good satisfaction in use. The principal point to be guarded against is any fluctuation of the water level which will permit the end of the discharge nozzles to become wet, because if they do so the dust rapidly builds upon them and in time they become completely obstructed.

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Dry-process Dust Collector for Blast Furnaces

2021-12-16 · DC:Dust Catcher TRT:Top pressure Recovery Turbine VS:Venturi Scrubber SV:Septum Valve A dry-process dust collector for blast furnace is equipment for cleansing blast furnace gas. The energy in blast furnace gas (in the forms of pressure and temperature) is recovered by a TRT generator after pass-ing through the dust collector.

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RECYCLING OF FLUE DUST INTO THE BLAST FURNACE

2017-2-6 · Blast furnace flue dust contains valuable amounts of carbon and iron. The contents of harmful trap elements are low enough for recycling into the blast furnace. Since 1993, SSAB Tunnplåt in Luleå has recycled the flue dust by charging it into the blast furnace in the form of a cold-bonded dust briquette.

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MODERN BLAST FURNACE (BF) AND CONVERTER (BOF)

2020-7-20 · a very efficient blast furnace gas cleaning. The axial cyclone is removing up to 85% of the dust in the BF gas. Compared to a standard dust catcher, which is still the main dry dust separation stage in the chain of BF gas cleaning, it is a significant increase in dust separation and leads to a minimized amount of dust separated in the wet stage.

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What is dust catcher in blast furnace? - Answers

2012-6-19 · It removes the heavy dust particles coming along with the BF(Blast Furnace) gas by reducing the velocity of the gas so that the dust particles are left as the gas lost it's ability to carry the ...

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Blast Furnace and Dust Catcher, Ford Plant | The Art ...

2022-1-19 · Blast Furnace and Dust Catcher, Ford Plant Origin United States Date Made 1927 Medium Gelatin silver print Dimensions 24 × 19.3 cm (image); 25.2 × 20.2 cm (paper) Credit Line Julien Levy Collection, Special Photography Acquisition Fund Reference Number 1979.113 Extended information about this artwork

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Geometry optimisation of a gravity dust-catcher using ...

2012-12-1 · A dust-catcher relies solely on gravity to separate out dust particles from the blast furnace top gas flow. These particles, carried by the free flowing gas pass out the top of the furnace and through a down-comer section where they enter another section which reduces the incoming velocity of the top gas through its diverging expansion profile ...

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Performance comparison of a blast furnace gravity dust ...

A gravity dust-catcher is a high tonnage device that is widely used to separate a mixture of dusts from blast furnace (BF) top gas flow. Dusts include limestone, iron ore and coke/coal.

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Charles Sheeler, Blast Furnace and Dust Catcher, River ...

Blast Furnace and Dust Catcher, River Rouge Plant, Ford Motor Company Artist name Charles Sheeler Date created 1927 Classification photograph Medium gelatin silver print Sub-Medium vintage Dimensions 9 13/16 in. x 7 13/16 in. (24.92 cm x 19.84 cm) Date Acquired 1999 Credit Collection SFMOMA

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Geometry optimisation of a gravity dust-catcher using ...

A gravity dust-catcher is a high tonnage device that is widely used to separate a mixture of dusts from blast furnace (BF) top gas flow. Dusts include limestone, iron ore and coke/coal.

Read More

Dust Catchers - ChestofBooks

Another dust catcher which uses the principle of having the gas impinge upon the surface of water is the invention of Mr. B. F. Mullen, of eetonia, Ohio. This dust catcher has had the widest application of any apparatus of its type. The design is shown in Fig. 182. The external shape of the apparatus is not unlike that of the standard dust catcher.

Read More

Dust Catchers. Part 2 - chestofbooks

This dust catcher has given very good satisfaction in use. The principal point to be guarded against is any fluctuation of the water level which will permit the end of the discharge nozzles to become wet, because if they do so the dust rapidly builds upon them and in time they become completely obstructed.

Read More

MODERN BLAST FURNACE (BF) AND CONVERTER (BOF)

2020-7-20 · a very efficient blast furnace gas cleaning. The axial cyclone is removing up to 85% of the dust in the BF gas. Compared to a standard dust catcher, which is still the main dry dust separation stage in the chain of BF gas cleaning, it is a significant increase in dust separation and leads to a minimized amount of dust separated in the wet stage.

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NO.5 BLAST FURNACE RELINE PROJECT

2016-8-24 · 3. Rationale of the Blast Furnace Reline 3.1 The No.5 Blast Furnace was commissioned as a new facility in 1972. Blast Furnaces are often subjected to extreme physical stress resulting in deterioration of the interior, thus requiring periodic repair. The major repair in a Blast Furnace’s campaign life is the replacement of the lining

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What is dust catcher in blast furnace? - Answers

2012-6-19 · It removes the heavy dust particles coming along with the BF(Blast Furnace) gas by reducing the velocity of the gas so that the dust particles are left as the gas lost it's ability to carry the ...

Read More

Performance comparison of a blast furnace gravity dust ...

A gravity dust-catcher is a high tonnage device that is widely used to separate a mixture of dusts from blast furnace (BF) top gas flow. Dusts include limestone, iron ore and coke/coal.

Read More

Charles Sheeler, Blast Furnace and Dust Catcher, River ...

Blast Furnace and Dust Catcher, River Rouge Plant, Ford Motor Company Artist name Charles Sheeler Date created 1927 Classification photograph Medium gelatin silver print Sub-Medium vintage Dimensions 9 13/16 in. x 7 13/16 in. (24.92 cm x 19.84 cm) Date Acquired 1999 Credit Collection SFMOMA

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Geometry optimisation of a gravity dust-catcher using ...

A gravity dust-catcher is a high tonnage device that is widely used to separate a mixture of dusts from blast furnace (BF) top gas flow. Dusts include limestone, iron ore and coke/coal.

Read More

(PDF) Characterization of some blast furnace waste dusts

For the blast furnace dusts, from the dust catcher a considerable variation in the bulk density was found, which can presumably be attributed to the remarkable difference in the carbon content of ...

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AIST - 2020 AISTech Conference Proceedings

2021-11-2 · Download PDF. View Sample Page. Abstract: During the overhaul of a blast furnace, the existing gravity dust catcher has been revamped by incorporating the principle of cyclone dust removal to improve its dust removal efficiency. The whole flow fields and the motions of solid particles have been simulated by CFD (Computational Fluid Dynamics) to ...

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Dust Catchers. Part 2 - chestofbooks

This dust catcher has given very good satisfaction in use. The principal point to be guarded against is any fluctuation of the water level which will permit the end of the discharge nozzles to become wet, because if they do so the dust rapidly builds upon them and in time they become completely obstructed.

Read More

Blast Furnace gas generation and usage – IspatGuru

2013-3-18 · Blast Furnace Gas Generation and Usage. ... In this stage, the BF gas is normally passed through a dust catcher where all the coarser particles are removed. The dust catcher is a large cylindrical structure normally 20 m to 30 m in diameter and with a height of 20 m to 30 m. It is usually lined to insulate it and prevent the condensation of ...

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Methods of Shutting Down a Blast Furnace – IspatGuru

2015-5-5 · Prior to the last casting, the blast furnace dust catcher is emptied. Accumulated dust has a tendency to consolidate into a rock like mass if undisturbed for a time and can present a difficult problem after operation begins again. About the end of the casting, before the blast furnace is taken off, a heavy blanket of ore may be dumped in the ...

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Gas cleaning systems in ironmaking blast furnaces

The off-gas discharged from a blast furnace is de-dusted in a first stage by a dust catcher or a cyclone. The separated dust consists mainly of iron and coke.

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