Molten iron desulphurization blow assisting stirring device

Abstract

The invention belongs to the field of molten iron pretreatment desulphurization equipment, and particularly relates to a molten iron desulphurization blow assisting stirring device. The molten iron desulphurization blow assisting stirring device comprises a power source (14), an electric conduction electrode (15), a power interface (13) and a stirring body. The stirring body comprises an air storage chamber (2) and an air distribution bin (3); an air blowing pipe (4) is arranged in the air distribution bin (3), a plurality of air spraying openings (5) are formed in the side wall of the air distribution bin (3); a main core pipe (10) is arranged in a sleeve (1); a distributor (7) is arranged in a center zone in each stirring blade (9); a branch pipe (11) is transversely arranged in each stirring blade (9); a port of the main core pipe (10) and ports of the branch pipes (11) are communicated with ports of the distributor (7); and one electrode of the power source (14) is connected with a signal transmission port of the power interface (13), and the other electrode of the power source (14) is connected with a port of the electric conduction electrode (15). The molten iron desulphurization blow assisting stirring device is simple in structure, high in stirring force and high in desulphurization efficiency.

Description

technical field [0001] The invention belongs to the field of molten iron pretreatment desulfurization equipment, in particular to an auxiliary blowing and stirring device for molten iron desulfurization. Background technique [0002] With the rapid development of modern industrial production and science and technology, the requirements for steel quality are increasing day by day. For example, in order to avoid internal cracks in billets and obtain good surface quality, the sulfur content of ordinary steel is required to be less than 0.020%; in order to make structural steel have uniform mechanical properties, the sulfur content in steel is required to be less than 0.010%; in order to make oil and Natural gas pipelines, steels for petroleum refining equipment, steels for offshore oil production platforms, low-temperature steels, thick ship plate steels, and aviation steels have properties such as hydrogen-induced crack resistance, more uniform mechanical properties, and highe...

AI Technical Summary

Problems solved by technology

However, the existing KR method mechanical stirring device generally has a single direction of stirring force and insufficient stirring force, which will cause some desulfurization agents to float up into the slag without participating in desulfurization, and some desulfurization products are still in the molten iron due to insufficient floatation. To achieve the desulfurization effect, the stirring force is weak, resulting in slow desulfurization reaction speed and low desulfurization efficiency

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