A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a process preparation method for improving the density of an initial roasting blank of a graphite electrode. The method comprises the following steps: selecting the following raw materials in parts by weight: 5-80 parts of coke sand, 15-50 parts of coke powder, 0.05-20 parts of graphite, 0.1-5 parts of iron oxide red and 0.2-20 parts of phenolic resin. By changing the grain composition of the aggregate, reducing the critical particle size and selecting the critical particle size and the adhesive, the body density of a formed blank is improved, and the times of re-dipping and re-roasting can be reduced by improving the body density of an initial roasted blank of a product and generating a product of the same grade, so that the production cost is reduced, the production efficiency and quality of the product are improved, and the market competitiveness of products is improved. Meanwhile, by improving the input-output ratio of materials, the production cost is reduced, the production period of the product is shortened, and the production efficiency of the product is improved; and the adopted adhesive is replaced by phenolic resin from coal pitch, so that harmful gas, dust and the like in the past production process can be greatly reduced.
本发明公开了一种提高石墨电极初始焙烧坯密度的工艺制备方法，包括以下步骤：选取原料，所述原料按重量份数计包括焦砂5‑80份、焦粉15‑50份、石墨0.05‑20份、铁红0.1‑5份、酚醛树脂0.2‑20份。通过更改骨料颗粒级配，降低临界粒度，且通过临界粒度和黏结剂的选择，提高了成型坯体密，实现通过提高产品初始焙烧坯的体密，生成同等级产品可减少再次浸渍与再次焙烧的次数，以此来降低了生产成本，且提高产品的生产效率和质量，提高了产品的市场竞争力，同时通过提高物料投入产出比，降低生产成本和产品生产周期，提高了产品的生产效率；通过将采用的黏结剂由煤沥清替换为酚醛树脂，可大幅减少了过去生产工艺中的有害气体、粉尘等。
The invention discloses a process preparation method for improving the density of an initial roasting blank of a graphite electrode. The method comprises the following steps: selecting the following raw materials in parts by weight: 5-80 parts of coke sand, 15-50 parts of coke powder, 0.05-20 parts of graphite, 0.1-5 parts of iron oxide red and 0.2-20 parts of phenolic resin. By changing the grain composition of the aggregate, reducing the critical particle size and selecting the critical particle size and the adhesive, the body density of a formed blank is improved, and the times of re-dipping and re-roasting can be reduced by improving the body density of an initial roasted blank of a product and generating a product of the same grade, so that the production cost is reduced, the production efficiency and quality of the product are improved, and the market competitiveness of products is improved. Meanwhile, by improving the input-output ratio of materials, the production cost is reduced, the production period of the product is shortened, and the production efficiency of the product is improved; and the adopted adhesive is replaced by phenolic resin from coal pitch, so that harmful gas, dust and the like in the past production process can be greatly reduced.
本发明公开了一种提高石墨电极初始焙烧坯密度的工艺制备方法，包括以下步骤：选取原料，所述原料按重量份数计包括焦砂5‑80份、焦粉15‑50份、石墨0.05‑20份、铁红0.1‑5份、酚醛树脂0.2‑20份。通过更改骨料颗粒级配，降低临界粒度，且通过临界粒度和黏结剂的选择，提高了成型坯体密，实现通过提高产品初始焙烧坯的体密，生成同等级产品可减少再次浸渍与再次焙烧的次数，以此来降低了生产成本，且提高产品的生产效率和质量，提高了产品的市场竞争力，同时通过提高物料投入产出比，降低生产成本和产品生产周期，提高了产品的生产效率；通过将采用的黏结剂由煤沥清替换为酚醛树脂，可大幅减少了过去生产工艺中的有害气体、粉尘等。
Process preparation method for improving density of initial roasting blank of graphite electrode
提高石墨电极初始焙烧坯密度的工艺制备方法
2021-12-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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