Do you know the operation process of graphitization furnace?

Do you know the operation process of graphitization furnace?

The graphitization furnace is mainly used for the sintering and graphitization of carbon materials, the graphitization of PI film, the graphitization of thermal conductive materials, the sintering of carbon fiber rope, the sintered graphitization of carbon fiber filament, the purification of graphite powder and other materials that can be graphitized in a carbon environment, etc. High temperature treatment.Its operating temperature is as high as 3000℃.

The manufacturer of graphitization furnace supplies power to a group of graphitization furnaces by a furnace transformer. There are 6-7 graphitization furnaces in a group. The furnace is produced intermittently and the furnace transformer runs continuously.This can not only make full use of the production capacity of the transformer, but also facilitate the process operation within a certain production cycle.

The production of graphite products, in the production operation of the graphitization process, is composed of several steps such as furnace cleaning, furnace loading, power transmission, cooling, furnace unloading, and minor repairs.The implementation cycle operation of the graphitization furnace shall be reasonably arranged according to the actual production situation.

1. Clear the furnace

Every time a furnace product is produced, the furnace must be cleaned, the silicon carbide decomposition layer must be cleaned to the yellow material part, or all new materials must be replaced in accordance with the regulations.Generally, the graphitization furnace should be replaced once in half a year of use.Do not mix graphitized coke with old materials when cleaning the furnace, otherwise emery will be produced when using graphitized coke.

2. Furnace installation

The furnace core is an important part of the ZUI of the graphitization furnace.The product is both the heating resistance and the object to be heated. Whether the furnace is installed appropriately or not has an impact on the graphitization yield, quality, power consumption and yield.

Furnace installation method：

According to the location of the product in the graphitization furnace, it can be divided into vertical installation, horizontal installation, and vertical installation.

The order of loading the furnace is: laying the bottom of the furnace, putting the loading board, putting the cushion, installing the electrode, putting the filling material and the insulation material, etc.

3. Power transmission, cooling and unloading of graphitization furnace：

After the furnace installation is over, cover the exhaust hood, hang the bus bars on both sides of the bottom of the furnace, connect the conductive electrode and the bus bars through the knife gate switch, and notify the substation to power on according to the prescribed power.After energizing, the temperature of the conductive electrode gradually increases, and as the temperature of the conductive electrode increases, a large water valve is gradually opened to cool the conductive electrode.

At the end of the power-on of the graphitization furnace, the core and surrounding temperature should be measured in time, and the temperature distribution required by the regulations should be met.Generally, the furnace temperature is measured as the temperature of the edge part of the furnace core, and the temperature of the center part of the furnace core is much higher than that of the edge part of the furnace core.When producing high-purity graphite, the insulation layer of the furnace core is thicker and more electricity is required, so the temperature of the furnace core is much higher than that of ordinary graphite electricity, and the temperature can reach about 2800℃.After the power failure, it will be cooled for 3 to 6 days according to the size of the furnace.