Spray absorber for wet flue gas desulfurization

A technology of wet flue gas desulfurization and spray absorption tower, which is applied in the field of spray absorption tower, can solve the problems of low sulfur content and the difficulty of spray tower technology to meet environmental protection requirements, achieve high gas load and overcome easy crystallization And fouling, the effect that the operation elasticity is wide

CN102764582BActive Publication Date: 2015-03-25武汉华德环保工程技术有限公司
4 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2015-03-25

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a high-quality spray absorber for wet flue gas desulfurization. The absorber comprises an absorber cylinder body which is provided with a flue gas inlet channel and a flue gas outlet channel. A perforated screen plate, flue gas redistribution rings, slurry spray devices, a demister and a rotating-stream plate device are arranged horizontally from bottom to top between the flue gas inlet channel and the flue gas outlet channel. Inner side edges of the flue gas redistribution rings are in an undulate or serrated shape, and the rotating-stream plate device is composed of a plurality of evenly-distributed independent rotating-stream plate separators. According to the high-quality spray absorber for wet flue gas desulfurization, the problem of no flue gas flowing above the absorber close to the flue gas inlet section is solved, the phenomenon of the easy crystallization and scaling of the area is overcome, gas-liquid contact area is maximized, absorption reaction is effective, and the absorber is applicable to desulfurization of flue gas with high sulfur dioxide content. 'fog-drop particles' carried in the flue gas are eliminated to the maximum extent, chimney 'rain' phenomena are reduced greatly, and the content of fog-drop particles can achieve 60 milligrams / nanometer3. The absorber is wide in applicable range, and can be used for wet flue gas desulfurization in a double-alkali way, an acetylene sludge way, a lime-gypsum way and the like.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a spray absorption tower in wet flue gas desulfurization equipment, in particular to a wet flue gas desulfurization spray absorption tower. Background technique

[0002] The acid rain problem is one of the global environmental problems facing mankind today. The sulfur oxides SO produced by coal burning 2 and nitrogen oxides NO x Pollution is the main protozoa of acid rain in my country. Since my country's energy structure is dominated by coal, in my country's power industry, thermal power has always accounted for about 70% of the total power generation, and coal-fired power plants are the largest source of air pollution in my country. Controlling the flue gas pollution of power plants is the requirement to realize the coordinated development of economy, society and environment, and it is also the requirement to give full play to the advantages of my country's coal reserves and realize the sustainable development of coal-fired...

Examples

Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] The wet flue gas desulfurization spray absorption tower shown in the figure includes a spray tower cylinder body 8, and the lower and upper parts of the spray tower cylinder body 8 are respectively provided with a flue gas inlet channel 1 and a flue gas outlet channel 7, and the flue gas The junction between the upper part of the inlet passage 1 and the spray tower cylinder 8 is a chamfered or arc-shaped smooth transition structure, and the connection between the lower part of the flue gas inlet passage 1 and the spray tower cylinder 8 is 10-20° from the horizontal plane. Avoid crystallization or scaling here. Between the flue gas inlet channel 1 and the flue gas outlet channel 7, a slurry spray device 4 and a demister 5 are arranged horizontally from bottom to top, and a porous sieve plate is horizontally arranged between the ...