Method and system for flue gas demercuration by using desulfurization waste water of coal-fired power plant
A technology for desulfurizing wastewater and coal-fired power plants, which is applied in separation methods, chemical instruments and methods, and dispersed particle separation, etc., can solve the problems such as the inability to reuse wastewater, negative system operation, and complicated configuration, so as to overcome high operating costs, The effect of saving operation cost and low cost
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0025] Example 1:
[0026] Such as figure 1 The shown system for removing mercury from flue gas using desulfurization wastewater from a coal-fired power plant includes an air preheater 2, a dust collector 3, an absorption tower 4, a dehydration device 6, a desulfurization wastewater storage tank 7, a water pump 8, an air compressor 9 and The spray device, in which the air preheater 2, the dust collector 3 and the absorption tower 4 are connected in sequence through a flue, the flue gas inlet of the air preheater 2 is connected to the boiler 1, and the flue gas outlet of the absorption tower 4 is connected to the chimney 5. The water inlet of the dehydration device 6 is connected with the water outlet of the absorption tower 4, and the water outlet thereof is connected with the water inlet of the desulfurization wastewater storage tank 7. The pipeline between the dehydration device 6 and the desulfurization wastewater storage tank 7 is provided with a branch pipe connected to the...
Example Embodiment
[0027] Example 2:
[0028] The desulfurization wastewater produced by the by-product of the wet limestone-gypsum process through the dehydration unit 6 and not undergoing conventional neutralization, coagulation, flocculation, concentration and other conventional wastewater treatments is directly transported to the desulfurization wastewater storage tank 7, and halogen additives are added and mixed The mixture is uniformly formed into a desulfurization wastewater mixture, and is transported by a water pump 8 to the flue before the inlets of the air preheater 2 and the dust collector 3 through the wastewater pipeline, and then the desulfurization wastewater mixture is uniformly sprayed into the flue through the liquid atomizing nozzle 10, and the flue gas In the desulfurization wastewater mixture, the mass ratio of the total mass of bromine and iodine in the halogen additive to the chlorine in the desulfurization wastewater is 0.05, and the injection amount is 0.003L / m 3 Smoke. A...
Example Embodiment
[0030] Example 3:
[0031] The desulfurization wastewater produced by the by-product of the limestone-gypsum wet process through the dehydration unit 6 and not undergoing conventional neutralization, coagulation, flocculation, concentration and other conventional wastewater treatments is directly transported to the desulfurization wastewater storage tank 7, and the mercury removal catalyst is added The mixture is uniformly mixed into a desulfurization wastewater mixture, and the water pump 8 is transported to the flue before the inlets of the air preheater 2 and the dust collector 3 through the wastewater pipeline, and then the desulfurization wastewater mixture is uniformly sprayed into the flue through the liquid atomizing nozzle 10, and the flue gas In the desulfurization wastewater mixture, the mass ratio of the total mass of iron and manganese ions in the mercury removal catalyst to the chlorine element in the desulfurization wastewater is 0.01, and the injection amount is 0...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap