A recovery device for dust removal and method of using the same

Abstract

The invention relates to the technical field of dust removal and ash treatment, in particular to a recovery device for dust removal and a method for using the same, comprising a rotary kiln main body, a material mixing mechanism, a water washing mechanism, a slag water quenching mechanism, a tail gas treatment mechanism and a stirring mechanism When in use, the mixing mechanism is set on one side of the main body of the rotary kiln, so that it is convenient to accurately grasp the appropriate feeding amount during actual operation, and at the same time, the mixing uniformity of the two materials is also improved, so as to ensure the subsequent normal sintering effect. ; The water washing mechanism is set on the top of one side of the mixing mechanism, so that when the chlorine content in the dust removal dust is too high, it is convenient to carry out the corresponding water washing operation on the dust removal dust, so as to remove more chloride ions, so as to ensure that the subsequent operation is not Affected; the tail gas treatment mechanism is set at the bottom of the main body of the rotary kiln, so that the acid and alkali additives can be added more conveniently in the tail gas treatment, and the two additives can be properly regulated at the same time, so that the use of More convenient.

Description

technical field [0001] The invention relates to the technical field of dust removal and dust treatment, in particular to a recovery device for dust removal dust and a use method thereof. Background technique [0002] Dust removal, according to the needs and properties of dust removal settings, can be roughly divided into two categories: flue gas dust removal and environmental dust removal. Flue gas dust removal is necessary for the production process, such as the high temperature flue gas of the sintering machine head, and the dust removal of blast furnace and converter gas systems. This kind of dust removal dust is flue gas dust removal dust. The flue gas dust ash has low iron grade and contains many harmful elements. The direct remixing and sintering will reduce the sintering grade, affect the blast furnace strengthening and coke saving, and cause the cyclic enrichment of harmful impurities, especially the enrichment of zinc, which is harmful to blast furnace production. ...

AI Technical Summary

Problems solved by technology

The flue gas dedusting ash contains low iron grade and many harmful elements. Direct back-mixing and sintering will reduce the sintering grade, affect the strengthening and coke saving of the blast furnace, and cause the cyclic enrichment of harmful impurities, especially the enrichment of zinc, which will affect the blast furnace production. operation has adverse effects, limiting its recycling

[0003] At present, most of the traditional dust removal and ash treatment devices need to use a rotary kiln to cooperate with coke powder sintering. However, most of the traditional feeding process relies on manual addition. The uneven mixing of ash and coke powder will affect the subsequent sintering work; in the subsequent tail gas treatment, most of the corresponding acid-base additives need to be added, but the traditional addition method is also difficult to accurately grasp the addition amount, and it is even more inconvenient to simultaneously Control the addition of acid and alkali additives; in addition, in actual operation, when the chlorine content in the dust removal ash is too high, it will have a greater impact on the subsequent treatment process

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