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Dry-wet combined sulphur removal system for waste incineration flue gas

A technology of dry wet method and waste incineration, which is applied in the direction of combustion method, combined device, gas treatment, etc., can solve the problems of low desulfurization treatment efficiency and complex process equipment, etc., achieve remarkable economic and energy saving benefits, simple device structure, low cost, etc. The effect of desulfurization agent consumption

Inactive Publication Date: 2017-06-20
HEFEI TIANXIANG ENVIROMENT PROJECT
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Problems solved by technology

[0005] The invention provides a dry-wet combined desulfurization system for waste incineration flue gas, which solves the problems of low efficiency and complex process equipment for existing waste incineration flue gas desulfurization

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  • Dry-wet combined sulphur removal system for waste incineration flue gas

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Embodiment Construction

[0020] The following clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] like figure 1 As shown, the present embodiment provides a dry-wet combined desulfurization system for waste incineration flue gas, including a cooling tower 1, an absorption tower 2, a bag filter 3 and a chimney connected in sequence, and the top of the cooling tower 1 is A water atomization nozzle 4 is provided, the flue gas inlet is arranged at the top of the cooling tower 1, the flue gas outlet is arranged at the lower part of the cooling tower 1, and the flue connecting the cooling tower 1 and the absorption tower 2 is pr...

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Abstract

The invention discloses a dry-wet combined sulphur removal system for waste incineration flue gas. The dry-wet combined sulphur removal system for the waste incineration flue gas belongs to the technical field of flue gas desulfurizationenvironment protection, and comprises a cooling tower, an absorption tower, a bag-type dust collector and a chimney connected sequentially, wherein a water atomization spray head is arranged on the top part of the cooling tower; a flue gas inlet is formed in the top part of the cooling tower; a flue gas outlet is formed in the bottom part of the cooling tower; an activated carboninjection pipe and a powderyslaked lime injection pipe are arranged on a gas flue for connecting the cooling tower and the absorption tower; the absorption tower is connected with a quick limeserous fluid inlet pipe; the quick limeserous fluid inlet pipe is connected with a quick limeserous fluidbatching system. After the waste incineration flue gas passes through the dry-wet combined sulphur removal system provided by the invention, the smoke dust is reduced to be around 30mg / m<3>, the HCl is reduced to be around 50mg / m<3>, and the SOX is reduced to be around 200mg / m<3>.

Description

technical field [0001] The invention relates to the technical field of flue gas desulfurization environmental protection, in particular to a dry-wet combined desulfurization system for waste incineration flue gas. Background technique [0002] Waste incineration technology is being increasingly widely used due to its advantages of high volume reduction rate and recyclable heat energy. Like the combustion process of coal, wood and other fuels, waste incineration will also produce flue gas. Due to the complexity of waste components, the flue gas generated by its incineration contains many harmful substances. The pollutants contained in waste incineration flue gas mainly include HCl, SO X , NO X and other acid gases and smoke. NO among them X It is mainly NO. According to the existing research results, the volume ratio of NO content in general flue gas accounts for NO X About 95% of the total. Compared with other acidic gases, NO has the characteristics that it is not deep...

Claims

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Application Information

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IPC IPC(8): B01D53/75B01D53/80B01D53/83B01D53/60B01D53/50B01D53/68B01D46/02B01D50/00F23J15/00
CPCB01D46/023B01D50/00B01D53/502B01D53/508B01D53/60B01D53/68B01D53/75B01D53/80B01D53/83F23J15/006F23J2215/20B01D2257/70B01D2251/404B01D2253/102B01D50/60Y02A50/20
Inventor 周玉祥
Owner HEFEI TIANXIANG ENVIROMENT PROJECT
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