Desulfurization and denitrification system

Abstract

The invention provides a desulfurization and denitrification system. The desulfurization and denitrification system includes an oxidizing agent preparation system (1), an oxidizing agent solution transportation and metering system (2) connected to the oxidizing agent preparation system, a compressed air system (3) connected to the oxidizing agent solution transportation and metering system, an injection system (4) connected to the compressed air system (3), a flue (5) for flue gas transportation and flue gas denitrification, and a desulfurizing tower (6) for desulfurization. The injection system (4) is used for spraying the oxidizing agent, and is disposed in the flue (5). The desulfurization and denitrification system provided by the invention has the following technical effects that: 1) the system greatly saves the cost: a denitrification tower is eliminated, the method of denitrification by spraying an oxidizing agent in the flue can save more than 1 million of invest capital, by spraying the oxidizing agent in the flue, the project can be realized only with tens of thousands of investment; and 2) the system solves the existing technical problems: without additional heating, the system can achieve denitrification, and can solve the problem of difficult utilization of SCR and SNCR for denitrification in industrial kilns; and 3) the denitrification effect is good.

Description

technical field [0001] The invention relates to a desulfurization and denitrification system, belonging to the technical field of environmental protection equipment. Background technique [0002] Flue gas desulfurization and denitrification technology is a boiler flue gas purification technology applied in the chemical industry that produces many nitrogen oxides and sulfur oxides. Nitrogen oxides and sulfur oxides are one of the main sources of air pollution. Therefore, the application of this technology has many benefits for ambient air purification. [0003] At present, the background of the desulfurization and denitrification industry at home and abroad is relatively good. my country's development of flue gas desulfurization and denitrification industry policies and market demand prospects are promising, and the market potential is relatively large. Investing in this industry faces strong market feasibility and economic feasibility. The rapid development of the desulfur...

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Problems solved by technology

[0005] 1. SCR method: the flue gas temperature requirement is 340°C-380°C, and the flue gas temperature of many industrial kilns is lower than the temperature range required by SCR. SCR denitrification technology is not suitable for industrial kiln flue gas

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