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Double-crucible experimental apparatus for high-temperature experiment

An experimental device, double crucible technology, applied in the equilibrium experiment between pyrometallurgical slag-metal-gas phase, new crucible design field

Inactive Publication Date: 2011-11-23
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It overcomes the defect of separating slag and molten metal at present, so the thermodynamic properties of slag and molten metal can be studied simultaneously in one high-temperature experiment

Method used

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  • Double-crucible experimental apparatus for high-temperature experiment
  • Double-crucible experimental apparatus for high-temperature experiment
  • Double-crucible experimental apparatus for high-temperature experiment

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Embodiment Construction

[0016] The cylindrical ceramic crucible is made of Al 2 o 3 Cylindrical crucible, containing molten steel; molten steel will not corrode Al 2 o 3 Ceramic crucible. The waisted metal crucible is made of metal Mo, which is used to convert CaO-SiO 2 -Al 2 o 3 -MgO-TiO 2 The slag is held together, and the slag does not corrode the metal Mo.

[0017] Before the experiment, the required steel shavings were packed in Al 2 o 3 In a cylindrical crucible, and flatten the surface. The proportion of CaO and SiO that meet the experimental requirements 2 、Al 2 o 3 , MgO and TiO 2 After the powder is mixed evenly, it is filled in a Mo crucible and compacted. Then, the filled CaO, SiO 2 、Al 2 o 3 , MgO and TiO 2 The Mo crucible of the mixture powder was put into the Al 2 o 3 in a cylindrical crucible.

[0018] Put the above-mentioned double crucible with the reaction raw materials into the high-temperature furnace for equilibrium reaction. After the experiment, the Ti co...

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Abstract

The invention discloses a double-crucible experimental apparatus for a high-temperature experiment, which belongs to the field of high-temperature metallurgical experiments, is used for a slag-molten metal-gas phase balance experiment of high-temperature metallurgy and can solve the problem of erosion of crucibles by slag and molten metal in a high-temperature metallurgical residue / metal reactionexperiment. Unique metal crucible design is utilized, and a metal crucible is combined with a ceramic crucible. The ceramic crucible is used for holding molten metal; and the slag is collected up by using a convex liquid surface which is formed by waist-reduced drum-shaped metal crucible and molten metal, so that the ceramic crucible is not eroded by the slag during the experiment, and the slag does not react with the waist-reduced drum-shaped metal crucible. The vertical double-crucible experimental apparatus does not affect an experimental atmosphere and is not limited to the experimental atmosphere, and the high-temperature experiment can be performed under required atmosphere. Since the problem of erosion of the crucible by a reactant is solved, the thermodynamic properties of the slag and the molten metal can be simultaneously researched, the obtained thermodynamic data is more accurate and reliable, and the experiment difficulty and cost are also reduced.

Description

technical field [0001] The invention belongs to the field of high-temperature metallurgy experiments, and relates to a new crucible design method, which is suitable for the balance experiment among high-temperature metallurgical slag-metal-gas phases. The crucible design device of the invention can solve the problem of erosion of the crucible by slag and molten metal, and can conveniently measure the distribution ratio of elements between the slag and molten metal. Background technique [0002] Iron and steel and a considerable part of non-ferrous metals are prepared and purified by pyro-smelting and / or refining methods. The essence of the smelting and refining process is to control the distribution of various elements between the slag and the molten metal to achieve the purpose of separating different elements. Since the process is a complex slag-metal-gas phase reaction, the distribution ratio of various elements between the slag and the molten metal is determined by the ...

Claims

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Application Information

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IPC IPC(8): B01L3/04
Inventor 闫柏军李钒杜嗣琛
Owner UNIV OF SCI & TECH BEIJING
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