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Carbon nanometer ultramicro material large carbon electrode and preparation method thereof

A technology of ultra-fine materials and carbon nanometers, applied in the direction of furnace heating elements, etc., can solve the problems of poor oxidation resistance, poor internal structure, high resistivity, etc., and achieve the effect of improving adsorption performance, improving performance and reducing resistivity

Inactive Publication Date: 2015-11-04
JIZHOU CHANGAN ELECTRODE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, my country's ultra-large-diameter carbon electrodes have disadvantages such as poor internal structure, high resistivity, poor oxidation resistance, and high consumption, and there is still a certain gap in quality compared with international high-quality ultra-large-diameter carbon electrodes.

Method used

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  • Carbon nanometer ultramicro material large carbon electrode and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The first step: medium crushing, sieving, grinding

[0039] The calcined solid raw material is crushed and sieved by electric calcined anthracite, part of the petroleum coke and graphite are crushed and sieved, and part of the ultrafine carbon nano-scale powder is milled with high-efficiency milling equipment;

[0040] Step 2: Ingredients

[0041] According to the described component of claim 1, use the electronic batching system to weigh 8 parts by weight of crushed graphite with a particle diameter greater than 8mm and less than or equal to 16mm, 16 parts by weight of crushed graphite with a particle diameter greater than 4mm and less than or equal to 8mm, and 12 parts by weight of graphite with a particle diameter less than or equal to 4mm. Graphite powder, 8 parts by weight of petroleum coke with a particle size greater than 8 mm and less than or equal to 16 mm, 12 parts by weight of petroleum coke with a particle size greater than 4 mm and less than or equal to 8 m...

Embodiment 2

[0051] The first step: medium crushing, sieving, grinding

[0052] The calcined solid raw material is crushed and sieved by electric calcined anthracite, part of the petroleum coke and graphite are crushed and sieved, and part of the ultrafine carbon nano-scale powder is milled with high-efficiency milling equipment;

[0053] Step 2: Ingredients

[0054] According to claim 1, the component is weighed with an electronic batching system: 12 parts by weight of crushed graphite with a particle diameter greater than 8mm and less than or equal to 16mm, 18 parts by weight of graphite fragments with a particle diameter greater than 4mm and less than or equal to 8mm, 16 parts by weight with a particle diameter of less than or equal to 4mm 12 parts by weight of petroleum coke with a particle size greater than 8 mm and less than or equal to 16 mm, 16 parts by weight of petroleum coke with a particle size greater than 4 mm and less than or equal to 8 mm, 12 parts by weight of petroleum co...

Embodiment 3

[0064] The first step: medium crushing, sieving, grinding

[0065] The calcined solid raw material is crushed and sieved by electric calcined anthracite, part of the petroleum coke and graphite are crushed and sieved, and part of the ultrafine carbon nano-scale powder is milled with high-efficiency milling equipment;

[0066] Step 2: Ingredients

[0067] According to the described component of claim 1, use the electronic batching system to weigh 16 parts by weight of crushed graphite with a particle diameter greater than 8mm and less than or equal to 16mm, 20 parts by weight of crushed graphite with a particle diameter greater than 4mm and less than or equal to 8mm, and 18 parts by weight of graphite with a particle diameter less than or equal to 4mm. Graphite powder, 16 parts by weight of petroleum coke with a particle size greater than 8 mm and less than or equal to 16 mm, 20 parts by weight of petroleum coke with a particle size greater than 4 mm and less than or equal to 8...

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Abstract

The invention belongs to the technical field of carbon electrodes, and discloses a carbon nanometer ultramicro material large carbon electrode and a preparation method thereof. The main technical characteristics are that screening, ultramicro nanoscale powder grinding and proportioning are performed through a vibrating screen, high-performance powder grinding equipment and an electronic proportioning system respectively, calcined solid raw materials including electrically calcined anthracite, petroleum coke and graphite scraps enter a double-speed efficient energy-saving kneading pot while a processed additive (carbonate) is added, and after stirring and dry mixing are performed, coal pitch is added. Since the ultramicro carbon nanoscale powder can enable aggregate and coke particles to be completely combined, thereby improving performance of the electrode, perfecting internal structure of the electrode, ensuring safe use performance of the carbon electrode, and achieving the purposes of reducing electrical resistivity of the electrode, improving oxidation resistance, breaking resistance and anti-tensile performance, prolonging the use cycle life of the electrode and reducing production cost of a submerged arc furnace.

Description

technical field [0001] The invention belongs to the technical field of special carbon electrodes, and in particular relates to large-scale carbon electrodes made of carbon nanometer ultrafine materials and a preparation method thereof. Background technique [0002] Extra-large-diameter carbon electrodes are listed in the Ministry of Industry and Information Technology's "Industrial Transformation and Upgrading Investment Guide" to encourage the development of energy-saving and environmentally friendly products. High graphite electrodes and heavily polluted electrode paste, on a submerged arc electric furnace with the same capacity, the ultra-large diameter carbon electrode is larger in diameter than the graphite electrode, the arc belt in the furnace is widened, and the arc body is stable, which ensures the smelting efficiency and reduces the energy consumption and protect the environment. [0003] With the active promotion of national energy conservation and emission reduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/62
Inventor 王广西樊德明李兰敬段维娟张立兴郑晓辉王兴禄段维刚王春良王建华
Owner JIZHOU CHANGAN ELECTRODE
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