电解铝用预焙阳极的生产流程

电解铝用预焙阳极的生产流程英文回答：
Production Process of Prebaked Anodes for Aluminum Electrolysis.
The production of prebaked anodes for aluminum electrolysis involves several key steps:
1. Raw Material Preparation:
Petroleum coke is calcined to increase its reactivity and remove impurities.
Pitch is melted and degassed to remove volatile components.
2. Blending:
Calcined petroleum coke and pitch are blended in a
specific ratio to achieve the desired anode properties.
3. Kneading:
The blend is kneaded under high pressure and temperature to form a homogeneous mixture called "green anode paste."
4. Forming:
The green anode paste is pressed into the desired shape and size using a forming machine.
5. Baking:
The formed anodes are baked at a high temperature to solidify the pitch binder and carbonize the petroleum coke particles.
6. Impregnation:
To improve electrical conductivity, the baked anodes
are impregnated with a low-viscosity coal tar pitch or a mixture of pitch and anthracene oil.
7. Secondary Baking:
The impregnated anodes are subjected to a second baking process to further stabilize the pitch and achieve the desired electrical properties.
8. Surface Treatment:
The anodes are often surface-treated with a protective coating or sealant to enhance their performance and durability in the electrolysis cell.
中文回答：
预焙阳极的生产工艺。

预焙阳极的生产工艺包括以下几个关键步骤：
1. 原料制备：
石油焦经过煅烧以提高其反应性和去除杂质。

沥青熔化并脱气以去除挥发性组分。

2. 混合：
煅烧石油焦和沥青按特定比例混合以获得所需的阳极性能。

3. 揉捏：
在高压高温下揉捏混合物，形成均匀的混合物，称为“生阳极糊”。

4. 成型：
使用成型机将生阳极糊压成所需的形状和尺寸。

5. 焙烧：
将成型阳极在高温下焙烧，以固化沥青粘合剂并炭化石油焦颗粒。

6. 浸渍：
为了提高电导率，将烧制的阳极浸渍在低粘度煤沥青或沥青和蒽油的混合物中。

7. 二次焙烧：
对浸渍的阳极进行二次焙烧，以进一步稳定沥青并获得所需的电气性能。

8. 表面处理：
阳极通常用保护涂层或密封剂进行表面处理，以提高其在电解槽中的性能和耐久性。