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Large-sized high-power graphite electrode and manufacturing method thereof

A graphite electrode and manufacturing method technology, applied in the manufacture of stone grinding electrodes, large-scale high-power graphite electrodes and their manufacturing fields, can solve problems such as slow production efficiency, high input costs, and high manufacturing difficulty coefficient, and achieve enhanced waste utilization transformation, increasing economic benefits, and reducing production costs

Active Publication Date: 2017-08-11
介休市志尧碳素有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Due to the low strength of vibration-formed graphite electrodes, it cannot meet the needs of large-scale yellow phosphorus furnaces and vanadium-titanium smelting furnaces. In addition, the market has a strong demand for high-quality extruded large-scale graphite electrodes. Therefore, the demand for large-scale graphite electrodes research emerges
[0003] At present, for extruded graphite electrodes, it is more difficult to manufacture graphite electrodes with larger specifications. After the process of pressing-roasting-impregnation-secondary roasting-graphitization-machining, this process not only has high input costs, but also slow production efficiency

Method used

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  • Large-sized high-power graphite electrode and manufacturing method thereof
  • Large-sized high-power graphite electrode and manufacturing method thereof
  • Large-sized high-power graphite electrode and manufacturing method thereof

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Embodiment Construction

[0031] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] The manufacturing method of large-scale high-power graphite electrode of the present invention, its overall process is roughly: use forged petroleum coke and needle coke as dry material, dry material is made into different granularity and powder material through crushing and screening, and simultaneously mixes Use crushed graphite and raw crushed graphite, mix according to a certain ratio to form a mixed material, use medium-temperature improved pitch with high coking value as a binder in a kneading pot, add stearic acid additives for kneading to obtain a paste, and mix the paste The raw material is added to the uniformly cooled cooling system for cooling, and then extruded under a 41MN extruder to produce raw products, and then roasted, graphitized, and machined to produce large-scale high-power stone grinding...

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Abstract

The invention relates to a large-sized high-power graphite electrode and a manufacturing method thereof. The manufacturing method includes: using calcined petroleum coke and needle coke as the dry materials, crushing and sieving the dry materials to obtain multi-granularity granules and powder, coordinately using graphite scraps and raw graphite scraps, mixing according to a certain proportion to form a mixed material, using high-coking-value medium-temperature improved asphalt as the binder in a mixing and kneading pot, adding stearic acid additives to perform mixing and kneading to obtain a paste material, cooling the paste material in an even-cooling cooling system, extruding in a 41MN extruding machine to obtain a raw product, calcining, graphitizing, and machining to obtain the graphite electrode. The manufacturing method has the advantages that the high-coking-value medium-temperature improved asphalt is used as the binder, the overall system temperature is matched and regulated, a traditional impregnation procedure and a secondary calcination procedure are omitted, the manufactured high-power graphite electrode is even and compact in structure, and the quality index and use performance of the graphite electrode can meet national standards.

Description

technical field [0001] The invention relates to a stone-milled electrode and a manufacturing method thereof, in particular to a large-scale, high-power graphite electrode and a manufacturing method thereof, in particular to a manufacturing method for preparing a φ714mm stone-milled electrode. Background technique [0002] Due to the low strength of vibration-formed graphite electrodes, it cannot meet the needs of large-scale yellow phosphorus furnaces and vanadium-titanium smelting furnaces. In addition, the market has a strong demand for high-quality extruded large-scale graphite electrodes. Therefore, the demand for large-scale graphite electrodes Research came into being. [0003] At present, for extruded graphite electrodes, it is more difficult to manufacture graphite electrodes with larger specifications. After the process of pressing-roasting-impregnation-secondary roasting-graphitization-machining, this process not only has high input costs, but also slow production...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/52C04B35/622C04B35/64
CPCC04B35/522C04B35/622C04B35/64C04B2235/422C04B2235/48C04B2235/6562C04B2235/6567C04B2235/77C04B2235/96
Inventor 赵耀志何永康马春元赵焕杰赵焕锐
Owner 介休市志尧碳素有限公司
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