Modification apparatus and method for calcium-base desulfurizer

A desulfurization agent and modified technology, which is applied in the field of flue gas purification, can solve the problems of pore blockage, etc., and achieve the effects of easy vaporization and expansion, small molecular weight, and low investment cost

Inactive Publication Date: 2005-01-12
SOUTHEAST UNIV
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Problems solved by technology

Micropores slightly larger than these pores can desulfurize, but it is easy to cause pore blockage

Method used

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  • Modification apparatus and method for calcium-base desulfurizer
  • Modification apparatus and method for calcium-base desulfurizer

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Embodiment Construction

[0019] The object of the present invention is realized on the modifying device independently manufactured by oneself, and the device providing the flash heat source by electric heating is shown in the accompanying drawing. In addition to using electric heating, other high-temperature and high-pressure heat sources (such as boiler sewage) can also be used to achieve the purpose of flash evaporation. At this time, the structure of the flash evaporation device will be simplified; microwave heating methods can also be used. The device of the present invention is composed of a safety valve interface 1, a thermocouple interface 2, a pressure gauge interface 3, a discharge valve 4, a body 8, a heating device 5, and a flange 6. The body 8 is a cylindrical pressure vessel. One end of the body is provided with a flange 6, and the other end is provided with a safety valve interface 1, a thermocouple interface 2, a pressure gauge interface 3, and a discharge valve 4. The heating device 5 i...

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Abstract

The present invention is the modification of calcium-base desulfurizer to raise its desulfurizing efficiency and belongs to the field of fume purifying technology. The modification apparatus consists of safety valve joint, thermocouple joint, pressure gauge joint, discharge valve, main body, heater and flange. The main body is one cylindrical container, there are flange at its one end; safety valve joint, thermocouple joint, pressure gauge joint and discharge valve at its other end; and heater on its outer surface. The modification method includes setting calcium-base desulfurizer and water in some container, sealing, introducing nitrogen at 2-10 MPa, heating to 200-320 deg.c to make high pressure water penetrate into pores of the calcium-base desulfurizer, relieving pressure suddenly to expand the pores and alter the porosity characteristic of the desulfurizer via the flash evaporation of the pressurized and saturated water.

Description

1. Technical field [0001] The invention relates to a modification method for improving the desulfurization efficiency of the desulfurizer by modifying the calcium-based desulfurizer, which belongs to the technical field of flue gas purification. 2. Technical Background [0002] Since the 1960s, with the continuous increase of industrial pollution, some industrialized countries have formulated strict regulations and emission standards, forcing coal-fired power stations to adopt flue gas desulfurization devices, which has promoted the application and development of desulfurization technology. Calcium spraying in the furnace tail humidification activation desulfurization technology has the advantages of less investment, small footprint, and easy transformation of small and medium-sized boilers, etc., which is in line with my country's national conditions, but the relatively low desulfurization efficiency limits its wide application. Therefore, it is of practical significance to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/48B01D53/81
Inventor 赵长遂陈晓平吴新
Owner SOUTHEAST UNIV
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