Demister for desulfurization tower

A technology of desulfurization tower and demister, which is applied in the field of flue gas desulfurization, can solve the problems of affecting the use effect of the downstream ridge type demister, the blockage of the demister, the flow velocity distribution of the smoke, and the inability to meet the national environmental protection requirements, so as to reduce the blockage Excellent corrosion resistance, corrosion resistance and pitting resistance, and high strength

Pending Publication Date: 2017-03-15
JIANGSU XINHONGDA GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high flue gas flow rate in the system, the flue gas contains a large number of large particles, the flat tube type mist eliminator will be partially blocked, resulting in uneven distribution of flue gas flow rate, affecting the use effect of the downstream roof type mist eliminator, resulting in The defogging effect of the demister becomes worse and cannot meet the national environmental protection requirements
In addition, due to the surface tension factor, the uneven coverage of the flushing water film, the elastic collision between the droplets and the plate, and the re-mixing into the flue gas are one of the key reasons for the decline in the demisting efficiency.

Method used

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  • Demister for desulfurization tower
  • Demister for desulfurization tower
  • Demister for desulfurization tower

Examples

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Embodiment

[0028] Such as figure 1 with 3 As shown, the desulfurization tower includes a desulfurization tower body 8. Below the desulfurization tower body 8 is provided an air inlet 13 and a circulating water discharge port 14, and the top is provided with an air outlet 12. The air inlet 13 and the circulating water discharge port 14 are located in the desulfurization tower body. 8 on both sides. The inner wall of the desulfurization tower body 8 is provided with three rows of equal-height supports 7. The wave baffle is arranged on the support 7. The wave baffle includes a wave baffle tube 5 arranged transversely above the air inlet 12 and a wave baffle plate 2 transversely arranged below the air outlet.

[0029] The wave baffle 2 includes an upper and a lower baffle unit; the baffle unit includes at least two rows of demisting modules with a herringbone cross section, and a rectangular parallelepiped supporting column 9 is arranged between each row of the demisting modules. Each column ...

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Abstract

The invention discloses a demister for a desulfurization tower. The desulfurization tower comprises a desulfurization tower body, an air inlet and a circulating water discharge outlet are formed in one side below the desulfurization tower body, an air outlet is formed in the top of the desulfurization tower body, and the demister comprises wave-like baffling parts and flow jet tubes which are connected with contour support parts on the inner wall of the desulfurization tower body respectively. According to the invention, the existing flat-plate type tube demister is designed to be a wave-like baffling tube, so that the airflow contact area can be increased to effectively reduce the risk of clogging.

Description

Technical field [0001] The invention relates to the field of flue gas desulfurization and the chemical industry that needs to remove mist droplets in the flue gas, and in particular to a demister for a desulfurization tower. Background technique [0002] Limestone-gypsum wet flue gas desulfurization technology is currently the main technical measure used to treat a large amount of sulfur dioxide pollution from coal-fired power plants in my country. This technology is the most mature and widely used desulfurization technology at home and abroad, and its domestic application reaches more than 95%. Limestone-gypsum wet flue gas desulfurization technology is to use limestone desulfurizer spray to absorb coal-fired boiler flue gas containing sulfur dioxide harmful gas, and to purify flue gas by absorbing harmful gas through the contact reaction of desulfurizer slurry and flue gas. [0003] After spraying, absorption and purification of the flue gas, there are still more droplets and dus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D45/08B01D45/18
CPCB01D45/08B01D45/18
Inventor 陈爱民
Owner JIANGSU XINHONGDA GROUP
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