Different raw materials and different refining processes are the key to meet the requirements of different production processes.

 

1、 The raw material is broken. The hammer crusher is used to crush the petroleum coke to the required particle size.

 

2、 Mixing and mixing. Batching and mixing is a process of weighing and mixing according to the prescribed formula. In this project, the platform is used for batching, and the concrete mixer is used for mixing. The petroleum coke and quartz sand are batched and mixed according to the process requirements.

 

3、 Electric furnace preparation. The furnace that was used last time should be retouched and reorganized to put into use again. The operation contents include cleaning furnace bottom material, trimming electrode, cleaning furnace wall and repairing, removing loading force and 1 stop, checking and removing other defects of furnace.

 

4、 Load the furnace. The reaction material, heat preservation material and furnace core material shall be filled into the furnace according to the type, position and size of the furnace charge, and the side wall of the smelting furnace with the function of heat preservation and material filling shall be built.

 

5、 Power transmission smelting silicon carbide. After the furnace is connected with the transformer, power can be transmitted. After 15 minutes of power transmission, open fire was used to ignite Co, and the smelting process lasted 170 hours.

 

6、 Cool down. After the furnace is shut down, the furnace is cooled naturally, and then the furnace is raked (unloading furnace wall and scraping out of material) to continue the natural cooling.

 

7、 Discharge classification. Discharge classification is the process of taking crystal block and graphite from furnace and separating primary product, secondary product and graphite.

 

We can do a simple understanding of the above production process of black silicon carbide powder. The improvement of the process can reduce the impurity incorporation and reduce the production cost.