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Method for obtaining coal-based graphite by using silicon carbide furnace transformer and matching resistance furnace thereof

A silicon carbide furnace and transformer technology, applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., can solve problems such as poor quality and achieve the effect of increasing added value

Inactive Publication Date: 2018-08-24
邓华强
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  • Abstract
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Problems solved by technology

[0003] Ordinary calcined anthracite is to use ordinary calciner to calcine or dry anthracite at high temperature, and the temperature is about 500-800 ℃ to obtain dried anthracite. ℃, due to the low calcination temperature of anthracite, the resulting blast furnace carbon blocks, electric furnace carbon blocks and negative electrode carbon blocks are of poor quality. More importantly, this traditional method requires a separate calciner for special calcination. This requires a separate general calcining production line or electric calcining production line

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  • Method for obtaining coal-based graphite by using silicon carbide furnace transformer and matching resistance furnace thereof

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Embodiment Construction

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the embodiments. Obviously, the accompanying drawings in the following description are some embodiments of the present invention. Ordinary technicians can also obtain other drawings based on these drawings on the premise of not paying creative work.

[0019] see figure 1 , an embodiment of the present invention provides a method for obtaining coal-based graphite using a transformer for a silicon carbide furnace and a matching resistance furnace, comprising the following steps:

[0020] A furnace bottom insulation layer 11 is laid inside the furnace body, an underlayment resistance material 12 is laid on the furnace bottom insulation layer 11, a crucible 20 is placed on the underlayment resistance material 12, and a negative electrode material to be graphitized is placed inside the ...

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Abstract

The invention provides a method for obtaining coal-based graphite by using a silicon carbide furnace transformer and a matching resistance furnace thereof. The method comprises the steps of furnace charging and graphitization, wherein a resistance material during charging is a finely-cleaned Taixi anthracite and low-sulfur petroleum coke mixture. The coal-based graphite with a good quality is generated by using the resistance material containing the finely-cleaned Taixi anthracite as a heat generating body in the graphitization process of a negative electrode material produced by using the obsolete silicon carbide furnace transformer and the matching resistance furnace thereof, and the graphitization degree of the coal-based graphite is 87% or more. The finely-cleaned Taixi anthracite in the resistance material plays a role in increasing the furnace resistance in the later power transmission stage in the graphitization process, and the graphitization process is also achieved.

Description

technical field [0001] The invention relates to the technical field of resistance furnace applications, in particular to a method for obtaining coal-based graphite by using a transformer for a silicon carbide furnace and a matching resistance furnace. Background technique [0002] Because of its low price, high carbon content, and compact structure, anthracite is usually the main raw material for carbon refractories (carbon blocks and bottom paste) used in the metallurgical industry for masonry blast furnaces, electric furnaces, and aluminum electrolytic cell linings. However, before using anthracite, it must be calcined to remove volatile matter, reduce the resistivity of anthracite, and improve thermal conductivity and true density. Currently used are mainly calcined anthracite and electric calcined anthracite. [0003] Ordinary calcined anthracite is to use ordinary calciner to calcine or dry anthracite at high temperature, and the temperature is about 500-800 ℃ to obtai...

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Application Information

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IPC IPC(8): C01B32/205
CPCC01B32/205
Inventor 邓华强
Owner 邓华强