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Dry-type desulphurization device

A desulfurization device and dry-type technology, applied in the field of flue gas desulfurization devices and dry-type flue gas desulfurization devices, can solve the problems of complex process and structure, increased operating costs, high pressure loss, etc., and achieve compact structure and guaranteed contact time , the effect of reducing pressure loss

Inactive Publication Date: 2012-06-20
XIAN RUIJINYUAN ENERGY TECH
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Problems solved by technology

For the above-mentioned patents, since the circulating bed device is used as the desulfurization reactor, the air distribution plate (or flue gas jet device) and the higher material concentration bring about a higher pressure loss, which adds a lot of operating cost to the actual operation. And the process and structure are relatively complicated, so it also restricts the general promotion of these methods

Method used

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Embodiment Construction

[0008] The specific implementation and working process of the present invention will be further described below in conjunction with the accompanying drawings. The working process of the present invention is as follows: the flue gas from the combustion equipment enters an air chamber 12 with rotating blades 2 through the pipe 1, and the connecting shaft 3 is driven by the motor 4 to rotate, so that the incoming flue gas forms a whirlwind flow; The outlet of the chamber is provided with a constriction nozzle, which forms a higher fluid velocity through the constriction nozzle, and enters the first-stage desulfurization reactor 5 arranged on the upper part of the air chamber. The desulfurization reactor 5 is a cylindrical structure with an expansion section 6 in the middle. The diameter of the expansion section in the first-stage desulfurization reactor is 1.2 to 1.5 times the diameter of the upper and lower sections of the reactor, and the upward flow rate of the flue gas enterin...

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Abstract

The invention relates to a dry-type desulphurization device which comprises a primary desulphurization reactor, a flue gas feeding device and a desulfurizer supplying device which are communicated with the primary desulphurization reactor, a cyclone secondary desulphurization reactor, and a dust collector mounted below the reactor; the flue gas feeding device adopts a wind chamber which is provided with an internal cyclone vane and has a contractible nozzle used as an outlet, and is disposed below the primary desulphurization reactor; the primary desulphurization reactor adopts a cylinder structure with an expansion section at the central part; an outlet of the primary desulphurization reactor is connected with an inlet of the secondary desulphurization reactor through a pipe; and the invention is characterized in that the diameter of the central expansion section of the primary desulphurization reactor is 1.2-1.5 times as large as the diameters of the upper and lower sections of the reactor.

Description

technical field [0001] The invention relates to a device for desulfurizing flue gas discharged from combustion equipment, in particular to a dry type flue gas desulfurization device, which belongs to the technical field of flue gas desulfurization. Background technique [0002] Sulfur dioxide pollution has always been the focus of environmental protection in many countries in the world, and more than 200 flue gas desulfurization technologies have been invented by various countries. However, there are only more than ten kinds that can be applied to industry. So far, more than 90% of coal-fired industrial boilers and power plant boilers use wet flue gas desulfurization technology. Due to the large capital investment and high water consumption required for wet desulfurization technology, its application is greatly restricted in some economically underdeveloped and water-scarce areas. In the development of less water desulfurization technology, the joint application of dry des...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/83B01D53/48
Inventor 雷威
Owner XIAN RUIJINYUAN ENERGY TECH
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