Desulfurization and denitrification treatment system and treatment method for externally exhausted flue gas in iron and steel smelting production

Abstract

The present invention relates to a desulfurization and denitrification treatment system and treatment method for exhausted flue gas from iron and steel smelting production, including a set frame, a locking bolt, a liquid outlet frame group, an intermittent conveying unit, a nozzle unit, two connecting rods and a retention unit. The side wall of the above-mentioned sheathing frame is connected with the locking bolt through thread fit, the middle part of the sheathing frame is equipped with a liquid outlet frame group, the lower end of the liquid outlet frame group is connected with an intermittent delivery unit, and the lower end of the intermittent delivery unit is connected with a nozzle unit, two connecting rods are installed at the left and right ends of the sleeve frame, and the retention unit is evenly connected between the two connecting rods from top to bottom. The invention can solve the problem that the traditional nozzle is usually designed with a single nozzle, and the sprayed mist desulfurization and denitrification agents are mostly concentrated in one place, and it is difficult to react to the rising flue gas in a wide range, and the mist desulfurization and denitrification agent is in contact with the rising flue gas. When the smoke comes into contact with it, it may be exhausted and diffused by the huge impact of the smoke.

Description

technical field [0001] The invention relates to the technical field of desulfurization and denitrification treatment, in particular to a desulfurization and denitrification treatment system and treatment method for flue gas exhausted from iron and steel smelting production. Background technique [0002] At present, the rapid development of industrialization will inevitably produce a large amount of industrial waste gas, which will not only affect the normal production of the factory, but also cause serious pollution to the environment, thereby causing harm to human bodies. Therefore, before the smoke is discharged, it is necessary to For desulfurization and denitrification treatment of flue gas, the traditional treatment method usually puts the nozzle into the chimney, and conducts flue gas treatment by means of atomization and direct injection, but this method often has major problems in actual operation: [0003] Traditional nozzles are usually designed with a single nozzl...

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Problems solved by technology

[0005] The invention can solve the problem that the traditional nozzle is usually designed with a single nozzle, and the sprayed mist desulfurization and denitrification agents are mostly concentrated in one place, which makes it difficult to react to the rising flue gas in a wide range, resulting in the direct discharge of part of the unreacted flue gas , and when the mist desulfurization and denitrification agent is in contact with the rising flue gas, it may be discharged and diffused by the flue gas with a huge impact force, thereby reducing the reaction time and effect between the two.

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