Molten drop furnace for measuring molten drop point of iron ore

Abstract

The invention relates to a molten drop furnace for measuring a molten drop point of iron ore. The furnace comprises a furnace body and a control device, wherein a sealed hearth is formed in the middle of the furnace body; and a heating device is arranged outside the hearth. The furnace is characterized in that: a graphite crucible is arranged inside the hearth; the heating device is controlled toheat the hearth, the graphite crucible and an ore sample in the graphite crucible; a hollow graphite pressing rod is arranged above the furnace body; a thermocouple is arranged inside the hollow graphite pressing rod; the lower end of the thermocouple passes through a graphite plate inside the graphite crucible and is contacted with the ore sample; a sealed sampling box is arranged below the furnace body; and a receiving crucible for accommodating molten metal liquid is arranged under the graphite crucible inside the sampling box. The molten drop furnace can accurately measure temperature of a material, the temperature of the material serves as softening temperature and dropping temperature of the iron ore, the accuracy of the dropping temperature is greatly improved, the measuring accuracy at the molten drop time point is improved, and a temperature and pressure curve at a molten drop moment is accurately captured.

Description

technical field [0001] The invention relates to a dripping furnace for simulating the internal environment of a blast furnace for iron and steel smelting and measuring or obtaining parameters related to the combustion performance of the blast furnace, in particular to a dripping furnace for obtaining and measuring the melting point of iron ore. Background technique [0002] Research on the anatomy of blast furnaces used in iron and steel smelting has confirmed that there are two main zones inside the blast furnace: the block zone and the softening zone. In the blocky section where the material line and the charge begin to soften, the ore falls in the form of a block in this section; while in the softening zone, the ore drops in a softening and melting manner, and the ore layer is the reflow layer. As we all know, the position, shape and thickness of the reflow zone have a significant impact on the blast furnace operation. It determines the distribution of the gas in the bl...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is: in order to overcome the deficiencies existing in the melting drop furnace in the prior art, such as the inability to accurately measure the temperature of the material, the inability to accurately measure the drop point, etc., and provide a furnace that can accurately measure the temperature of the material, and can accurately measure the drop point. Point drop furnace, which can provide important parameters for the automatic temperature control of the blast furnace from the cold state to the iron ore molten state, and can optimize the combustion process of the blast furnace

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