Microwave heating ammonia water reduction and denitrification treatment system and flue gas denitrification method thereof

Abstract

The invention discloses a microwave heating ammonia water reduction and denitrification treatment system and a flue gas denitrification method thereof. The system comprises a microwave tubular furnace, a forced draught blower, a temperature sensor, a denitrification reaction cavity and a concentration sensor, wherein the outlet a chamber of the microwave tubular furnace is connected with the inlet of the forced draught blower by virtue of a pipeline; the outlet of the forced draught blower is connected with the temperature sensor by virtue of a pipeline; the temperature sensor is connected with the bottom inlet of the denitrification reaction cavity by virtue of a pipeline provided with a first solenoid valve; the top outlet of the denitrification reaction cavity is connected with the concentration sensor by virtue of a pipeline; the concentration sensor is connected with the inlet A of the chamber of the tubular furnace by virtue of a second flue gas pipeline provided with a third solenoid valve; and the temperature sensor is connected with the input pipeline A of the chamber of the tubular furnace by virtue of a first flue gas pipeline provided with a second solenoid valve. The system is simple and scientific in denitrification process, the denitrification process is combined with the system, the flue gas emission can effectively meet the requirement on the national flue gas emission standard, and the system can be widely applied to occasions in which denitrification is needed so as to reduce the NOx emission and is wide in application prospects.

Description

technical field [0001] The invention relates to a flue gas denitrification treatment system, in particular to a treatment system for reducing and denitrification of ammonia water heated by microwaves and a flue gas denitrification method thereof. Background technique [0002] In recent years, my country's economy has developed rapidly, and the demand and supply of electricity have continued to grow. By the end of 2013, the installed capacity of electric power in the country had reached 1.247 billion kilowatts, of which thermal power was 862 million kilowatts, accounting for 69% of the country's total installed capacity. By the end of the "Eleventh Five-Year Plan", a total of 565 million kilowatts of coal-fired power plant desulfurization facilities have been built and operated, and the proportion of thermal power desulfurization units in the country has increased from 12% in 2005 to 80%. However, my country's per capita installed capacity is far below the average level of de...

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Problems solved by technology

[0004] In view of the application of the SNCR technology for denitrification in the boiler furnace, it is necessary to consider many key process parameters related to the boiler furnace, which will undoubtedly make the work in the design stage more complicated, and will greatly reduce its technical economy.

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