Energy-saving vulcanization tower for steelmaking plant

Abstract

The invention belongs to the technical field of flue gas treatment, in particular to an energy-saving vulcanization tower for a steelmaking plant. The energy-saving vulcanization tower for the steelmaking plant comprises a tower body, wherein a base and an air intake pipe are arranged at the bottom of the tower body, an exhaust pipe is arranged at the middle part of the top of the tower body, andtwo feed inlets are symmetrically distributed at the top of the tower body; a spindle-shaped inner tank is arranged in the tower body, and the upper end and lower end of the inner tank are respectively communicated with the exhaust pipe and the air intake pipe; the inner tank and the tower body form a digestive cavity through a sealing plate, and the digestive cavity is communicated with a water inlet pipe; a set of nozzles are fixedly connected in the inner tank uniformly, and a set of spray units are uniformly arranged on the nozzles; the spray units are communicated with the bottom of the digestive cavity through the nozzles, a conveying pipe and a water pump. According to the energy-saving vulcanization tower, quicklime in the digestive cavity is subjected to digestion reaction to generate a large amount of heat and desulfurized exhaust gas in the inner tank is heated and then exhausted through the exhaust pipe, and finally discharged into the upper atmosphere through a chimney, thereby reducing the pollution of the exhaust gas in the steelmaking plant to the lower atmosphere.

Description

technical field [0001] The invention belongs to the technical field of flue gas treatment, in particular to an energy-saving vulcanization tower of a steelmaking plant. Background technique [0002] Desulfurization refers to fixing the sulfur element in coal into a solid by calcium base and other methods to prevent the formation of SO during combustion. 2 . At present, there are generally three types of desulfurization methods: pre-combustion, in-combustion and post-combustion desulfurization. [0003] According to the dry and wet state of absorbent and desulfurization products in the desulfurization process, desulfurization technology can be divided into wet method, dry method and semi-dry (semi-wet) method. Wet FGD technology uses a solution or slurry containing absorbent to desulfurize and treat desulfurized products in a wet state. This method has the advantages of fast desulfurization reaction speed, simple equipment, and high desulfurization efficiency. However, seve...

AI Technical Summary

Problems solved by technology

[0005] In order to make up for the deficiencies of the existing technology and solve the problems of obvious flue gas cooling during the NID desulfurization process, which is not conducive to the diffusion of chimney exhaust and more secondary pollution, an energy-saving vulcanization tower for steelmaking plants proposed by the present invention

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