White smoke eliminating control system and method thereof

Abstract

The invention discloses a white smoke eliminating control system which comprises a desulfurization unit, a dust eliminating unit, a control unit and a discharging opening, wherein the desulfurizationunit, the dust eliminating unit, the control unit and the discharging opening are successively connected. The control unit comprises a detecting module, an upper computer, a hot saw PLC, an induced draft fan and a mixing module, wherein the detecting module, the upper computer, the hot saw PLC, the induced draft fan and the mixing module are successively connected. According to the white smoke eliminating control system and the method thereof, through detecting state of pipeline gas after desulfurization and dust eliminating and atmosphere state, temperature and humidity of the pipeline gas are intelligently adjusted, and furthermore the pipeline gas is discharged, thereby realizing a purpose of eliminating the white smoke. Furthermore, the invention further provides a method for adjustingthe temperature and the humidity of the pipeline gas, wherein a purpose of intelligent control on the temperature and the humidity of the pipeline gas is realized through introducing residual heat ofa sintering machine and controlling the input amount of the residual heat of the sintering machine.

Description

technical field [0001] The invention relates to the technical field of flue gas purification, in particular to a control system and method for eliminating white smoke. Background technique [0002] The desulfurization methods of high temperature flue gas can be divided into dry method and wet method. Due to mature technology and high desulfurization efficiency, wet flue gas desulfurization has become the most effective and main technical means to control acid rain and sulfur dioxide pollution, and it is widely used in our country. However, the wet flue gas desulfurization has an obvious and insurmountable shortcoming that the flue gas will produce "white smoke" phenomenon at the chimney mouth, which is quite harmful, and it is more direct than acid rain. Because the occurrence of general acid rain hazards must meet certain conditions, that is, after sulfur dioxide diffuses into the atmosphere, it must reach the water dew point of the atmosphere before sulfuric acid droplets...

AI Technical Summary

Problems solved by technology

However, wet flue gas desulfurization has an obvious and insurmountable shortcoming, that is, the phenomenon of "white smoke" will be produced at the mouth of the chimney, which is quite harmful, and it is more direct than acid rain.

Because the occurrence of general acid rain hazards must meet certain conditions, that is, after sulfur dioxide diffuses into the atmosphere, it must reach the water dew point of the atmosphere before sulfuric acid droplets will be produced. In the "white smoke" phenomenon, the white smoke at the chimney mouth is actually Small droplets of sulfuric acid will directly corrode the steel structure of the building, greatly reducing its service life, and will also cause great harm to the growth of surrounding plants

[0003] However, in the currently commonly used methods for eliminating white smoke, there is a problem of low elimination efficiency, that is, the temperature and humidity of desulfurization white smoke cannot be intelligently adjusted according to the state of gas in the pipeline and the state of the atmosphere.

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