Device for simultaneously desulfurizing and denitrating smoke gas through multi-stage turbocharging turbulence wet process and application method

Abstract

The invention discloses a device for simultaneously desulfurizing and denitrating smoke gas through a multi-stage turbocharging turbulence wet process and an application method and relates to the technical field of environmental protection. A smoke gas inlet is formed in the lower part of a body; a smoke gas outlet is formed in the upper part of the body; the body is fixed to a drainage pipe, a desulfurizing agent inlet pipe, a water pipe and a desulfurizing agent outlet pipe; the part, between the smoke gas inlet and outlet, of the body is fixed to a desulfurizing pipe A, a primary turbocharging turbulator, a desulfurizing pipe B, a lower receiving tank, a secondary turbocharging turbulator, a denitrating pipe C, an upper receiving tank, a denitrating pipe D, a first water inlet pipe, a demister and another water inlet pipe from bottom to top; a liquid outlet pipe of the lower receiving tank and a liquid outlet pipe of the upper receiving tank are fixed to the body; the desulfurizing pipe A is fixed to a desulfurizing nozzle A; the desulfurizing pipe B is fixed to a desulfurizing nozzle B; the denitrating pipe C is fixed to a denitrating nozzle C; the denitrating pipe D is fixed to a denitrating nozzle D; the water inlet pipe is fixed to a water nozzle. The application method comprises the following steps: preparing, desulfurizing and denitrating smoke gas, demisting the smoke gas, discharging the smoke gas, washing the demister and discharging contamination. The device for desulfurizing and denitrating smoke gas is smart. The application method is good.

Description

technical field [0001] The invention discloses a multi-stage turbocharged turbulent wet simultaneous desulfurization and denitrification device for flue gas and a use method thereof, and relates to the technical field of environmental protection. Background technique [0002] In the production process of some industrial enterprises, boilers / or kilns are used. For boilers / or kilns, flue gas / or tail gas is unavoidable, and the exhausted flue gas / or tail gas contains pollution Environmental "sulfur" and "nitrate" harmful substances, these substances are very harmful to human health. Therefore, the state has always carried out strict management on the emission of harmful substances, especially in recent years, the state has introduced stricter emission standards for flue gas and / or tail gas emissions containing "sulfur" and "nitrate" harmful substances—— Both desulfurization and denitrification are required. At present, flue gas denitrification technologies mainly include Sele...

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Problems solved by technology

[0003] To sum up, the deficiencies, defects and drawbacks of existing known technologies and current status due to improper equipment structure and methods are: ①, or only desulfurization, or only denitrification can be performed, and there is no desulfurization and simultaneous denitrification The equipment and method of denitrification; ②, whether it is desulfurization or denitrification, the equipment and method are very simple; specifically: A, simply spray the flue gas / or tail gas with water to implement desulfurization / or denitrification treatment ; B. Spray the flue gas / or tail gas with water plus desulfurizer solution to implement separate desulfurization treatment; C. Spray flue gas / or tail gas with water plus denitrification agent solution to implement separate denitrification treatment; ③ , Some enterprises have carried out desulfurization work in advance, but when denitrification is required in the new era, since no denitrification site has been reserved in advance, it is impossible to build / or install corresponding denitrification equipment; ④, the existing methods and equipment need to be compared High temperature, generally the temperature of flue gas discharged from small and medium-sized boilers is below 180°C, so the SCR method and SNCR method are difficult to apply;

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