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Process method and device for ultra-clean discharge treatment of dust-containing steam in steel slag rolling region

A technology of steam and steel slag, which is applied in the direction of combined devices, separation methods, chemical instruments and methods, etc., can solve the problems of inability to achieve ultra-clean emission indicators, few dust removal methods, etc., achieve simple operation and maintenance, improve dust removal efficiency, and run The effect of low energy consumption

Inactive Publication Date: 2017-05-10
MCC ENERGY SAVING & ENVIRONMENTAL PROTECTION +1
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Problems solved by technology

At present, there are relatively few dust removal methods for this area in China, and the emission effect of the previous process method is 100mg / Nm 3 Below, the ultra-clean emission indicators cannot be achieved

Method used

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  • Process method and device for ultra-clean discharge treatment of dust-containing steam in steel slag rolling region

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Embodiment Construction

[0020] Such as figure 1 As shown, a device for dedusting the dust-laden steam in the rolling area of ​​steel slag treatment to achieve ultra-clean discharge, which includes a washing tower 1, a swirl tower 2, an electrostatic precipitator 3, a first pipeline, a second pipeline, and a third pipeline. pipeline, the fourth pipeline and the induced draft fan 4; the bottom of the washing tower 1 is provided with a first opening, and the first opening is connected with the rolling zone space through the first pipeline, and is used to introduce the dust-containing steam 5 generated in the rolling zone into the washing tower 1 for spraying treatment, the second pipeline connecting the washing tower 1 and the cyclone tower 2 is arranged on the top of the washing tower 1 and the cyclone tower 2, and is used to introduce the dust-laden steam treated by the washing tower 1 into the cyclone tower 2 The cyclone separation process is carried out in the cyclone tower 2, the bottom of the cycl...

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Abstract

The invention relates to a process method and a device for ultra-clean discharge treatment of dust-containing steam in a steel slag rolling region. The device comprises a washing tower (1), a cyclone tower (2), a static dedustor (3), an induced draft fan (4) and a middle connecting pipeline and a chimney thereof. The system path of the process method is as follows: dust-containing steam (5) in a steel slag treatment rolling region enters the washing tower (1) and the cyclone tower (2) successively through a dust collecting hood for spraying and cyclone separating treatment, and enters through a gas uniform distributing device (9) at the inlet of the static dedustor (3), so that the dust-containing steam uniformly enters an inner electric field region of the static dedustor (3), and a spraying device (10) which is arranged at the inlet sprays online. The dust-containing steam treated by the static dedustor (3) enters the chimney along the pipeline through the induced draft fan to be discharged. Meanwhile, a washing device is arranged at an outlet of the static dedustor (3) so as to wash the inner electric field region in production intermittence. The dedusting efficiency is improved, so that the dust-containing concentration of flue gas at the outlet of the dedusting system reaches an ultra-clean discharge standard.

Description

technical field [0001] The invention relates to a process and device for ultra-clean discharge treatment of dust-containing steam in a steel slag rolling area. The invention adopts three methods of spraying dust removal, swirl separation, and electrostatic dust removal to continuously treat the dust-containing steam to realize the dust-containing steam. Ultra-clean emission of dust and steam, the dust concentration in the exhaust gas is as low as 5mg / Nm 3 . Background technique [0002] With the further improvement of the country's environmental protection requirements, the existing dust removal treatment process of dusty steam in the steel slag treatment area of ​​iron and steel enterprises cannot meet the special environmental protection emission standards in key areas of some provinces and cities. particularly urgent. The dust-laden steam in the steel slag processing area has the characteristics of large steam volume, high temperature, complex gas composition, high dust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D50/00
CPCB01D50/00B01D50/40
Inventor 朱晓华王宇鹏汤先岗魏传岱周广文周然孟婧
Owner MCC ENERGY SAVING & ENVIRONMENTAL PROTECTION
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