Crushing treatment and batching of raw materials for graphite production
Feb 18, 2022
Before batching, the large calcined petroleum coke and needle coke must be crushed, ground, and sieved.
Medium crushing usually involves crushing materials with a size of about 50mm through jaw crushers, hammer crushers, and roller crushers to further crush materials with a particle size of 0.5-20mm required for ingredients.
Grinding is the process of pulverizing carbonaceous raw materials to small powder particles with a particle size of 0.15mm or 0.075mm by means of a suspended-rod ring roller mill (Raymond mill), ball mill and other equipment.
Screening is a process of dividing materials with a wide range of sizes into several granular grades with a narrower size range through a series of sieves with uniform openings.
Ingredients are a production process in which aggregates, powders, and binders of various sizes are calculated, weighed, and focused according to the requirements of the formula. The scientific suitability of the formula and the stability of the batching operation are one of the most important factors that affect product quality indicators and performance.
The formula needs to determine 5 aspects:
-Choose the type of raw materials;
-Determine the ratio of different types of raw materials;
-Determine the particle size composition of solid raw materials;
-Determine the amount of binder;
-Determine the type and amount of additives.
