A Converter Primary Flue Gas Adjustable Annular Seam Washing Dehydration Demist Integrated Tower

Abstract

The invention relates to a primary smoke adjustable circular seam washing, water removing and mist removing integrated tower for a converter. The primary smoke adjustable circular seam washing, water removing and mist removing integrated tower comprises a tower body of a vertical structure. An adjustable circular seam heavy punch washer is arranged at the lower portion in the tower body. A smoke flow guiding pipe is arranged at the upper end of the adjustable circular seam heavy punch washer. The smoke inlet end of the smoke flow guiding pipe is connected with the smoke outlet end of a smoke pipeline. An outward type dust and water removing rotational flow plate is arranged in an annular space defined by a shell of the adjustable circular seam heavy punch washer, the outer wall of the smoke flow guiding pipe and the tower body. An outward type water and mist removing rotational flow plate I is arranged above the outward type dust and water removing rotational flow plate. A pressure water mist spray gun arranged in the downward direction is arranged at the upper portion of the smoke flow guiding pipe. Normally-open water mist nozzles are arranged at the upper end and the lower end of the outward type dust and water removing rotational flow plate and face the outward type dust and water removing rotational flow plate. The primary smoke adjustable circular seam washing, water removing and mist removing integrated tower is high in dust, water and mist removing efficiency; after smoke purification, the dust content is low, humidity is low and abrasiveness is small; and the maintaining workload of the system is greatly reduced, and the running reliability and safety of the system are improved.

Description

technical field [0001] The invention relates to an integrated tower for washing, dehydrating and defogging with an adjustable annular seam for the primary flue gas of a converter, and belongs to the technical field of air pollution prevention and flue gas cooling and dust removal. Background technique [0002] Environmental protection has become an important factor restricting the sustainable and coordinated development of my country's iron and steel industry. The "Iron and Steel Industry Air Pollutant Emission Standard" (GB28664-2012), which came into effect on October 1, 2012, stipulated stricter air pollutant emission control requirements and limits for steelmaking enterprises, January 1, 2015 At the beginning, regardless of new or existing enterprises, their emission concentration must be below 50mg / m3. On February 27, 2013, the state decided to implement special emission limits for air pollutants in industries such as steel and cement at different times; Environmental ...

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Problems solved by technology

But its disadvantages are also obvious. The resistance loss of the new OG wet system that is usually separated is still high: the total pressure of the fan in actual use usually reaches 22KPa--24KPa; the water consumption of the system is large, and the supporting water treatment equipment is huge; the amount of equipment maintenance Large, high operating costs

[0006] Usually, the dehydration effect of the existing annular seam scrubber is poor, and the free water content of the flue gas is high. A large number of washing droplets and flushing water droplets in the flue gas form free water mist with soot particles as condensation nuclei, which are released with the flue gas output. , forming a persistent problem that the system resistance is high and the dust removal efficiency is difficult to improve

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