Direct-current electric smelting magnesium electric arc furnace with multi-electrode structure
A direct current, multi-electrode technology, applied in the direction of electric furnace heating, furnace, furnace components, etc., can solve the problems of AC electric fused magnesium furnace resources and energy waste, and achieve the effects of suppressing the DC arc offset process, improving thermal efficiency, and effective control
Pending Publication Date: 2021-12-03
辽宁荣邦科技有限公司
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Problems solved by technology
[0007] The invention provides a DC fused magnesium electric arc furnace with a multi-electrode structure to overcome the serious waste of resources and energy in the AC fused magnesium furnace
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[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0032] The present embodiment provides a kind of direct current melting magnesium electric arc furnace with multi-electrode structure, such as Figure 1-9 , including: a DC electric fused magnesium electric arc furnace with a multi-electrode structure, including: a furnace body 1, at least one set of graphite electrodes 2, an electrode lifting adj...
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The invention discloses a direct-current electric smelting magnesium electric arc furnace with a multi-electrode structure. The direct-current electric smelting magnesium electric arc furnace comprises a furnace body, at least one group of graphite electrodes, an electrode lifting adjusting system and a direct-current metallurgical power supply, the furnace body is of a cavity structure with an opening in the top wall, and platforms are arranged on the two sides of the top of the furnace body. The graphite electrode enters the furnace body from the top of the furnace body along the edge of the inner side wall of the furnace body in an oblique insertion mode, the electrode lifting adjusting systems are installed on platforms on the two sides of the top of the furnace body and used for adjusting the height of the graphite electrode, and the direct-current metallurgical power source is used for providing power. The graphite electrode comprises at least one positive electrode and at least one negative electrode, the number of the positive electrodes is the same as that of the negative electrodes, the positive electrodes and the negative electrodes are arranged in a staggered mode, the current load problem of a single electrode can be effectively solved through the multi-electrode technology, the same-direction current and the reverse-direction current exist at the same time, the direct-current arc offset process can be restrained, and formation of a stable melting area in the center of the electric furnace is facilitated.
Description
technical field [0001] The invention relates to the field of crystal preparation devices, in particular to a direct current fused magnesium electric arc furnace with a multi-electrode structure. Background technique [0002] Magnesium oxide crystal has good light transmission, high melting point, low thermal expansion coefficient, high mechanical strength and hardness, and low dielectric loss, which is a rare high-performance material in modern industry. [0003] In current industrial production, a three-phase AC electric arc furnace with a circular furnace body or a DC electric arc furnace with a double-electrode structure (one positive and one negative) are mainly used to prepare magnesium oxide crystals. [0004] The alternating current crosses the zero point 100 times per second, the arc is continuously extinguished and reignited, and the arc current and magnetic field of the three-phase electrodes interact with each other, resulting in poor arc stability. Due to the un...
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IPC IPC(8): C30B11/00C30B29/16C30B28/06F27D11/10
CPCC30B11/00C30B11/003C30B29/16C30B28/06F27D11/10
Inventor 孙守刚王宁会孟庆臻
Owner 辽宁荣邦科技有限公司