Metallic element carbon hot melting reduction continuous reactor

Abstract

The invention discloses a continuous reduction reactor for the carbothermy smelting of metallic elements, which belongs to the field of metallurgy materials, and is applicable to reduction of pure metals or alloys. The continuous reduction reactor for the carbothermy smelting of metallic elements comprises a carbonaceous reducing agent inlet 1, a carbon monoxide outlet 2, a metallic oxide inlet 3, a graphite rod 4, an oxygen ion conducting pipe 5, a liquid metallic anode 6, a pot 7, an atmosphere protecting pipe 8, a sealing plug 9, a controllable moving branch 10, a sealing ring 11, an initial cathode 12, the pure metals or the alloys 13, slag 14, a protecting pipe 15 of an electrode connecting line, a thermostatic heater 16 and the electrode connecting line 17. The continuous reduction reactor for the carbothermy smelting of metallic elements is a reactor that is designed on the basis of the electrochemical reduction reaction theory of metallic oxides under drive of chemical energy and uses cheap raw carbon as a reducing agent, and compared with traditional carbon reduction, the continuous reduction reactor avoids carbon from entering the metals or the alloys, solves the pollution problem of the reducing agent, and can shorten metallurgy process; compared with traditional electrolysis reduction, the continuous reduction reactor overcomes the problems of large energy consumption, environmental pollution caused by low thermoelectric conversion efficiency and low electrolysis current efficiency.

Description

Technical field: [0001] The invention belongs to the field of metallurgical materials and is suitable for melting reduction of metal oxides. technical background: [0002] The reduction of metal elements is an important link in metallurgy. It is a reduction process in which metal atoms with positive charges obtain electrons and become free atoms through some means. Depending on how electrons are provided during the reduction process, the reduction methods can be divided into three categories: [0003] The first category is metal oxide reduction reactions driven by chemical energy. It is the direct contact between the reducing agent and the reduced object. Driven by the chemical potential gradient, the reducing agent transfers electrons to the reduced object for reduction. The reaction speed is fast, but there is a problem of "contamination" of the reduced product by the reducing agent, such as carbon (Reductant) provides iron oxide electrons for reduction, and at the same ...

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Problems solved by technology

Theoretically, the reduction product will not be "polluted" in the case of choosing a suitable cathode material, but the formation of an electric field requires external electrical energy, and electrical energy is a secondary resource, which comes from thermal power, hydropower or nuclear power. They are all through thermal energy- Electrical energy or mechanical energy-to-electrical energy conversion, these conversions have been very inefficient so far, resulting in waste of resources, CO 2 Increased emissions and exacerbated air pollution;

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