Novel blast furnace slag flushing, dust removing and white smoke eliminating system

A blast furnace slag flushing and whitening technology, applied in furnaces, furnace components, improving energy efficiency, etc., can solve problems such as polluted air, and achieve the effect of solving air pollution problems and eliminating white smoke.

Inactive Publication Date: 2020-04-17
22MCC GRP PRECISION FORGING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims to solve the problem of air pollution caused by a large amount of solid particles and water vapor in the flue gas discharged during the slag flushing process of the blast furnace

Method used

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  • Novel blast furnace slag flushing, dust removing and white smoke eliminating system

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Embodiment Construction

[0010] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. It is only stated here that the terms of orientation such as up, down, left, right, front, back, inside, and outside that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and they are not clear to the present invention. Specific limits.

[0011] Such as figure 1 As shown, a new blast furnace slag flushing, dust removal and whitening system includes a primary cooling device 5, a purification device 1, a windshield 2, a sealing cover plate 3 and an exhaust fan 4, wherein the primary cooling device 5 is installed on the blast furnace exhaust chimney. The cooling device 5 is provided with a cooling water mist nozzle; the purification device 1 is installed on the primary cooling device 5, th...

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Abstract

The invention provides a novel blast furnace slag flushing, dust removing and white smoke eliminating system. The system comprises a primary cooling device, a purifying device, a wind-proof cover, a sealing cover plate and an exhaust fan, wherein the primary cooling device is arranged on a blast furnace smoke exhaust chimney and is provided with a cooling spray nozzle; the purifying device is arranged on the primary cooling device; a smoke cavity is formed in the middle of the purifying device; an adsorption layer is arranged on the periphery of the smoke cavity; the sealing cover plate is arranged on the top of the adsorption layer and the smoke cavity; the purifying device is sleeved with the wind-proof cover; an exhaust channel is arranged between the wind-proof cover and the adsorption layer; an contraction smoke outlet is formed in the top of the wind-proof cover; a dust cover is arranged at the top of the smoke outlet; and the exhaust fan is arranged in the smoke outlet. According to the novel blast furnace slag flushing, dust removing and white smoke eliminating system, a small white smoke eliminating structure is directly arranged at the blast furnace smoke outlet, so thatthe travel of the smoke containing particles is very short, the smoke is disposed upon being produced and exhausted, the discharge problem of carrying solid particles generated by blast furnace waterslag flushing is solved, the white smoke discharged from the chimney is eliminated, and the problem of air pollution is effectively solved.

Description

technical field [0001] The invention relates to the field of environmental protection equipment for iron and steel smelting, in particular to a blast furnace slag flushing dust removal and whitening system. Background technique [0002] A large amount of high-temperature slag is produced after blast furnace ironmaking in iron and steel plants. Most of them are cooled by water cooling. During the cooling process, a large amount of steam will be generated, which will be discharged to the atmosphere through the chimney, producing a large amount of white smoke (including particulate matter), causing pollution to the environment. . It contains a variety of harmful elements and fine suspended particles, such as sulfur dioxide, hydrogen sulfide and solid particles, which cause serious corrosion and rust to blast furnace related equipment. At the same time, a large number of chloride and oxide particles are suspended in the air, seriously affecting air quality. [0003] At present,...

Claims

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Application Information

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IPC IPC(8): F27D17/00B01D49/00
CPCB01D49/00F27D17/00Y02P10/25Y02A50/2351
Inventor 张丽丽郭致富杨宝仓
Owner 22MCC GRP PRECISION FORGING
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