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Method for recovering raise dust of sintering flux

A recycling method and a technology of sintering flux, applied in the direction of separation methods, chemical instruments and methods, cleaning methods and appliances, etc., can solve problems such as complex conveying lines, waste of raw materials, threats to staff, etc., to reduce risk factors and avoid waste Effect

Active Publication Date: 2014-06-04
CHONGQING IRON & STEEL CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0002] The raw material conveying line of the sintering plant is complex, among which the flux is the most dusty bulk material, and the flux is the main cause of lung inhalation, and the conveying line of the flux is mainly concentrated in the raw material operation area, and the surrounding area of ​​the conveying line is basically an open workshop. The dust is fully exposed in this area, especially the accumulated material near the drop support is piled up like a mountain, the "snowflakes" in the air are like a stream, and the dust is overflowing in the interval. Great threats, high occupational risks for post personnel, has always been the hardest hit area for sintering environmental protection
Moreover, a large amount of dust will cause waste of raw materials

Method used

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  • Method for recovering raise dust of sintering flux

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with specific embodiments.

[0022] Such as figure 1 Shown, the sintering flux dust recovery method, according to the following steps,

[0023] (1) Use the rotary atomization water adhesion method to adhere to the dust particles scattered in the air at the collection point of the dust; Forcibly adhered, the adhered dust particles fall under the action of gravity. There is more dust near each drop point, so the dust collection point is generally set near the drop point. When actually collecting the dust, it is necessary to spray over the working area of ​​the entire raw material conveying line, so as to further reduce the concentration of the dust. At the same time, in places with a lot of dust, more spray devices can be installed or the spray concentration can be increased.

[0024] (2) The dust particles adhering together fall on the fixedly installed sieve below under the action of grav...

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Abstract

The invention discloses a method for recovering raise dust of a sintering flux. The method comprises the steps as follows: bonding raise dust microparticles gathered and dispersed in air by a rotary atomized water bonding method, enabling the raise dust microparticles bonded together to fall in a water pool at the lower end, conveying the raise dust microparticles with diameters being more than 1mm to a stock yard, carrying out dissolution, first-stage emulsification and second-stage emulsification on the raise dust microparticles with diameters being not more than 1mm, adding an acid solution into an emulsifying solution after the second-stage emulsification, reacting to generate an alkali emulsifying solution, digesting the alkali emulsifying solution with unslaked lime to generate a sintering raw material so as to reduce the concentration of the raise dust in the raw material operating region and lower the risk factor of occupational diseases, and meanwhile, recovering the raise dust of the sintering flux so as to avoid waste of the raw material.

Description

technical field [0001] The invention relates to a method for recovering fugitive dust from sintering agent, in particular to a method for reclaiming fugitive dust from sintering flux in a sintering plant. Background technique [0002] The raw material conveying line of the sintering plant is complicated, among which the flux is the most dusty bulk material, and the flux is the main cause of lung inhalation, and the conveying line of the flux is mainly concentrated in the raw material operation area, and the surrounding area of ​​the conveying line is basically an open workshop. The dust is fully exposed in this area, especially the accumulated material near the drop support is piled up like a mountain, the "snowflakes" in the air are like a stream, and the dust is overflowing in the interval. Big threats, high occupational risks for post personnel, has always been the hardest hit area for sintering environmental protection. And a large amount of dust also can cause the wast...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D47/06B08B15/00
Inventor 胡钢
Owner CHONGQING IRON & STEEL CO LTD