Metallurgical high-concentration nitrogen oxide flue gas rotary treatment device

Abstract

The invention discloses a metallurgical high-concentration nitrogen oxide flue gas rotary treatment device which comprises a steel frame base, a protective base is fixedly mounted on the upper portion of the steel frame base in an embedded mode, an absorption tower is vertically mounted on the central axis of the upper portion of the protective base, and a maintenance window is integrally arranged on the surface of the front side of the absorption tower. A water tank is arranged on the right side of the protective base in parallel, a waste gas inlet is formed in the middle of the front side of the protective base, and a swing mechanism is mounted at the bottom in the absorption tower. According to the metallurgical high-concentration nitrogen oxide flue gas rotary treatment device , the swing mechanism and a transition absorption mechanism are arranged in the absorption tower at the same time, the transition absorption mechanism is filled with a large amount of inert gas, and when the nitric oxide flue gas enters a concentric-square-shaped pipe, the nitric oxide flue gas can be mixed with the inert gas; therefore, the oxygen in nitrogen oxides is consumed, in the subsequent treatment, the consumption of a catalyst in the filler layer is reduced, and the use of an ammonia agent in the filler is saved.

Description

technical field [0001] The invention relates to the field of metallurgical waste gas treatment, in particular to a rotary treatment device for high-concentration nitrogen oxide flue gas used in metallurgy. Background technique [0002] With more and more industrialized production now, the industrial economy has become one of the important components of the social economy. Metallurgy refers to the extraction of metals and metal compounds from minerals, and the use of various processing methods to make metals into metal materials with certain properties. However, in the process of metallurgical production, a large amount of flue gas and nitrogen oxides will be produced. Nitrogen oxides are toxic. If they are discharged without treatment, they will not only affect the environment, but also seriously damage the atmosphere. Therefore, it is necessary to There are many treatment methods for nitrogen oxides, but the overall effect is not obvious enough, so it is necessary to improv...

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Problems solved by technology

[0005] The present invention provides a rotary treatment device for high-concentration nitrogen oxide flue gas used in metallurgy, which solves the problem of using valves to open and close the existing high-concentration nitrogen oxide flue gas treatment device proposed in the background technology. Closed to control the flow and emission of flue gas, it is easy to cause excessive internal pressure of the absorption tower, which is prone to impact, cause vibration, and affect the stability of other internal structures. In addition, it has the problem of excessive consumption of reducing agent, resulting in waste of resources.

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