Preparation method of carbon block for graphitization furnace and graphite block prepared from carbon block: Fid-Bau Portal

Preparation method of carbon block for graphitization furnace and graphite block prepared from carbon block

YANG XIUGANG / YANG BINHUI / XIA JINTONG / FENG BING / CHI CONG

The invention belongs to the technical field of graphite material production, and particularly discloses a preparation method of a carbon block for a graphitization furnace. Raw materials comprise, by weight, 10%-30% of graphitization furnace waste resistance materials, 0-20% of waste graphite crucibles, 20%-40% of waste anode scraps, 0-40% of waste carbon black, 0-20% of waste carbon electrodes, 0-20% of graphitization furnace waste heat preservation materials and 17%-30% of modified coal pitch, and the additional adding amount of the modified coal pitch is 30% of the waste carbon black. Performing mixing and kneading treatment: performing mixing and kneading treatment on the raw materials; molding treatment: molding the mixed and kneaded material to form a green body; and roasting treatment: roasting the formed green body to form the carbon block. Various carbon and graphite product wastes are adopted as main raw materials, the prepared graphitization furnace carbon block is low in cost, good in oxidation resistance, moderate in resistivity and heat conductivity coefficient, excellent in comprehensive performance and high in cost performance in actual use, and the service life of a graphitization furnace end is remarkably prolonged.

本发明属于石墨材料生产技术领域，具体公开了一种石墨化炉用炭块的制备方法，包括原材料预处理；原材料配比：包括以下重量百分比材料：石墨化炉废电阻料10％‑30％，废石墨坩埚0‑20％，废残极20％‑40％，废炭黑0‑40％，废炭电极0‑20％，石墨化炉废保温料0‑20％，改质煤沥青17％‑30％，改质煤沥青额外添加量为废炭黑的30％，混捏处理：将上述原材料进行混捏处理；成型处理：将混捏处理后的材料成型，形成生坯体；焙烧处理：将成型处理后的生坯体进行焙烧，形成炭块。采用多种炭和石墨产品废料作为主要原料，制备的石墨化炉炭块成本低、耐氧化性好、电阻率和导热系数适中、综合性能优良，在实际使用中性价比高，显著延长了石墨化炉头的使用寿命。

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