Molten iron stirring desulfurization hot state test system

Abstract

The invention discloses a molten iron stirring desulfurization hot state test system including a stirring device, a lifting device, an equipment support, a heat radiation prevention device, a furnacemouth fast fixing device and a non-vacuum induction furnace. The stirring device is connected to the lifting device and is arranged on the equipment support, the equipment support is arranged on the heat radiation protection device, and the heat radiation protection device is arranged on the non-vacuum induction furnace through the furnace mouth fast fixing device. The research scope of process factors that affect molten iron stirring desulfurization is greatly expanded, and the cutting-edge technology for improving the molten iron desulfurization efficiency can be studied. Meanwhile, accurateon-line control over operating process parameters and the molten iron and slag compositions is achieved, online collection of test data can be carried out, and the molten iron stirring desulfurization hot state test system has the advantages of being accurate in testing, high in adaptability, easy and convenient to operate, low in cost, short in cycle, high in degree of automation and the like.

Description

technical field [0001] The invention relates to the desulfurization pretreatment technology of molten iron, and more specifically relates to a thermal state test system for stirring desulfurization of molten iron. Background technique [0002] In recent years, with the continuous improvement of users' requirements for steel quality, especially high-quality pipeline steel, container steel, acid-resistant steel, etc., the S content in steel is required to be less than 0.005%, or even below 0.001% [1]. Therefore, the hot metal desulfurization pretreatment process is increasingly important in iron and steel smelting. Hot metal pre-desulfurization plays an important role in improving steel quality, optimizing steel production process, saving energy and reducing consumption, etc. It has developed into an indispensable link in iron and steel metallurgy. Among the many pre-desulfurization methods of molten iron, the KR (Kanbara reactor) mechanical stirring method has been widely ad...

AI Technical Summary

Problems solved by technology

Although industrial experimental research can more intuitively reflect the impression of operating process parameters on the desulfurization effect, but limited by industrial production conditions, the process factors that affect the desulfurization rate, desulfurization efficiency and stirring time of molten iron, such as the type of desulfurizer, molten iron, etc. The scope of top slag composition, molten iron temperature, initial sulfur content of molten iron and initial oxygen content of molten iron cannot be greatly expanded

At the same time, it is difficult to study the impact of some cutting-edge technologies that can improve the desulfurization efficiency of molten iron, such as wall cladding baffles, on the improvement of desulfurization efficiency.

Industrial experiments also have disadvantages such as high cost, long cycle, and difficulty in process stability control.

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