Spraying device used for treating desulfurization waste water of power plant
A desulfurization wastewater and spray device technology, which is applied in injection devices, liquid injection devices, water/sewage treatment, etc., can solve the problems of easy blockage of desulfurization wastewater atomization devices, reduce the damage probability of spray devices, and low flue coverage, etc. Achieve the effects of preventing fly ash from clogging, simplifying the layout and enhancing the effect
Active Publication Date: 2015-04-22
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology
[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a spray device for desulfurization and zero discharge treatment in power plants. The advanced spray device not only simplifies the layout of the intake pipe, greatly reduces the damage probability of the spray device, but also solves the technical problems of easy blockage of the desulfurization wastewater atomization device, easy corrosion of the flue and low coverage of the flue
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[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0026] Such as figure 1 As shown, the spraying device of the present invention is to arrange several side-by-side concave platforms in sequence on the steel pipe 1, and the plane of the concave platforms is provided with threaded holes, and the double-flow atomizing nozzles 5 with threads are sequentially fixed at the threaded holes of the concave platforms to ensure The threaded hole is well s...
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Abstract
The invention discloses a spraying device used for treating desulfurization waste water of a power plant. The spraying device is mainly applied to a high-temperature flue evaporation process. The spraying device is characterized by comprising a plurality of rows of steel tubes which are inserted in the direction of the cross section of a high-temperature flue; the steel tubes are provided with a plurality of concave tables sequentially from top to bottom, and double-flow atomizing nozzles are arranged at the bottoms of the concave tables and face the flowing direction of flue gas along the high-temperature flue; one end of each steel tube is connected into a fountain solution tube which is connected into a water inlet of the corresponding double-flow atomizing nozzle, and one end of each steel tube is further connected with a compressed air tube; compressed air acts on intake ports of the double-flow atomizing nozzles after all the sealed steel tubes are filled with the compressed air through the compressed air tubes, so that the desulfurization waste water is sprayed in an atomized state. According to the spraying device, the arrangement of an intake tube is simplified, and the damage probability of the spraying device is greatly lowered; besides, the technical problems that in the prior art, a desulfurization waste water atomizing device is prone to blockage, a flue is prone to corrosion, and the coverage of the flue is low can be solved remarkably.
Description
technical field [0001] The invention belongs to the field of desulfurization wastewater treatment, and more specifically relates to a spray device for treating desulfurization wastewater in power plants. Background technique [0002] my country's coal-fired power generation is one of the most important ways of coal utilization. According to my country's national conditions, coal-fired power generation will still dominate in the past fifty years. Among the many air pollutants emitted by coal-fired thermal power units, SO 2 As well as dust, which is harmful to the environment, it is the main pollutant that needs to be controlled. At present, wet flue gas desulfurization is the technological process adopted by about 85% of large-scale thermal power plants in the world today, and in wet flue gas desulfurization, the slurry for treating desulfurization wastewater is sprayed out, and the impurities discharged after treatment mainly include Suspended solids, supersaturated sulfit...
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IPC IPC(8): C02F1/12B05B7/02
CPCB05B7/08C02F1/12C02F2103/18
Inventor 张军营王少龙赵永椿田冲江城
Owner HUAZHONG UNIV OF SCI & TECH