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Radial grading desulfurization dust-removing device

A technology for desulfurization and dust removal, desulfurization area, applied in the direction of separation method, dispersed particle separation, chemical instruments and methods, etc., can solve problems such as low efficiency, equipment corrosion, serious scaling, etc., to reduce initial investment and operating costs, improve System reliability, effect of ensuring dust removal performance

Inactive Publication Date: 2007-08-01
SHANDONG UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

It is the constraints of the above-mentioned process conditions that cause a series of problems such as low efficiency, serious scaling, equipment corrosion, and fan carrying water in the existing technology and devices, and most of the devices cannot be put into practical use.

Method used

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  • Radial grading desulfurization dust-removing device

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Embodiment Construction

[0013] Provide a best embodiment of the present invention below in conjunction with accompanying drawing 1.

[0014] The process flow of the radial graded desulfurization and dust removal device is shown in Figure 1. The flue gas discharged from the boiler is pre-cooled by the ultra-fine atomized water sprayed by the water nozzle 2 in the inlet flue 1 before entering the dust removal and desulfurization tower, and the dust in the flue gas is agglomerated under the action of mist droplets to form large dust Granules to enhance the removal of dust. The pre-cooled flue gas enters the reactor outer cylinder 3 tangentially from the upper part of the reactor outer cylinder 3 . The outer annular area formed by the reactor outer cylinder 3 and the reactor inner cylinder 8 is a dust removal area. In the dust removal area, the flue gas rotates and flows downward. Under the action of centrifugal force, the smoke carried by the flue gas is captured by the liquid film on the inner wall o...

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Abstract

The invention involves a radial grading desulfurizing dust cleaning apparatus which used for removing the dust and the sulfur dioxide gas in coal-fired boiler gas at the same time. The gas containing smoke and dust and sulfur dioxide are dedusted and desulfurized in two areas of circular reactor respectively which are divided radially, it is dedusted by cyclone water film in central area and is desulfurized in radial outer area. The invention divides the reactor into two regions along radially, reaches the effective separation of desulfurization and dedusting function, ensures the stability of desulfurization and dedusting property, improves system reliability and reduces the initial investment and operating costs.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a radial graded desulfurization and dust removal device for sulfur dioxide and smoke dust in flue gas of small and medium-sized coal-fired boilers. Background technique [0002] Small and medium-sized coal-fired boilers are important thermal power facilities in my country, with a wide range of applications and a large demand, mainly concentrated in densely populated cities and suburban industrial areas. At present, there are more than 500,000 industrial boilers in the country, and the annual growth rate is 8,000. [0003] Soot and sulfides emitted by coal-fired industrial boilers are the main pollutants affecting urban air quality. Compared with power plant boilers, industrial boilers are relatively large in number, widely distributed, and located in densely populated areas, and the smoke and dust are mostly emitted at low altitudes. Therefore, the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78
Inventor 董勇马春元高继慧高建民杜谦王文龙徐夕仁宋占龙
Owner SHANDONG UNIV
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