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Dense phase dry tower smoke desulfurizing and dust cleaning apparatus

A technology for desulfurization, dust removal, and desulfurization agent, which is applied in the direction of combined devices, separation of dispersed particles, chemical instruments and methods, etc., can solve the problems of dense phase tower height, large power consumption, and large space occupied by bag filter, reaching the height of equipment Low cost, reduced floor space and stable desulfurization efficiency

Inactive Publication Date: 2005-07-06
UNIV OF SCI & TECH BEIJING
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems that the dense phase tower is too high, the bag filter occupies a large space, and the power consumption of the hoist is large.

Method used

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  • Dense phase dry tower smoke desulfurizing and dust cleaning apparatus

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Embodiment Construction

[0017] As shown in the figure, the raw flue gas produced by the boiler enters the semi-horizontal dense-phase double tower from the flue gas inlet 4 through the electrostatic precipitator 8, and is continuously added to the material seal layer 9 from the raw material bin 6 under the action of the agitator. The falling activated calcium-based absorbent (desulfurizer) reacts. Here, the function of the material sealing layer 9 is to enable the desulfurizer continuously added from the raw material bin 6 to fall from top to bottom to react with the flue gas, and at the same time prevent the flue gas entering the dry tower from penetrating upward through the material sealing layer to enter the top and bottom of the tower. The flue gas after the reaction is mixed. The flue gas undergoes desulfurization reaction while being stirred by the agitator on one side of the tower. When it reaches the bottom of the tower from top to bottom, it is mass-transferred by the agitator 5 between the ...

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Abstract

This invention relates to compact coherent tower smoke desulfuration dust removal device, which belongs to environment protection field and comprises material transmission machine, smoke gas exit, smoke entrance, blender, material storehouse, chimney, electric dust removal device and compact coherent tower. It is characterized by adding bag dust removal device, material sealing layer and isolation board, wherein the bag dust removal device is located on top of the tower; the original smoke of the boiler enters semi-laying compact double tower through electric dust removal device; the smoke reacts with material sealing layer dropped desulfuration agent through bag dust removal device.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a dense phase dry tower flue gas desulfurization and dust removal device. Background technique [0002] The dense-phase tower system consists of the main equipment dense-phase tower, humidifier, dust collector, silo, hoist, conveyor and other auxiliary equipment. The main principle of flue gas desulfurization is to use dry powder calcium-based desulfurizer to enter the humidifier together with a large amount of circulating ash removed by the bag filter for humidification and digestion. The circulating ash enters the tower from the upper inlet of the dense phase tower. , to react with the flue gas containing sulfur dioxide entering from the upper part of the tower. There is a stirrer in the reaction tower, which not only overcomes the wall sticking problem but also enhances the mass transfer, so that the desulfurization efficiency reaches 99%. The final desulf...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D50/00B01D53/81
Inventor 宋存义杨自华汪莉钱大益刘枫黄国忠邢奕李正要
Owner UNIV OF SCI & TECH BEIJING