Application Of Petroleum Coke Vertical Mill In Graphite Electrode Production Process

Petroleum coke is one of the raw materials for the production of graphite electrode. In China, petroleum coke is widely used in graphite electrode, accounting for about 59% according to relevant statistics. In the production process of graphite electrode, petroleum coke can only be applied after a series of processing. Petroleum coke vertical mill is one of the process grinding equipment in the production process. Vertical roller mill is generally used for petroleum coke front-end processing and grinding.

Petroleum coke used in the production of graphite electrode usually uses low sulfur petroleum coke. After calcination, low sulfur petroleum coke is also called calcined coke or cooked coke. Petroleum coke vertical mill can process not only raw coke (non calcined petroleum coke) but also calcined coke. The process flow of petroleum coke raw material treatment is as follows:

1. Before batching, the large calcined petroleum coke and needle coke must be subject to medium crushing, grinding and screening.

2. Medium crushing is usually to further crush the material of about 50mm to the particle size of 0.5-20mm required for batching through jaw crusher, hammer crusher, counter rolling crusher and other crushing equipment.

3. Grinding is a process in which petroleum coke vertical grinding equipment grinds carbonaceous raw materials to small powder particles with a particle size of less than 0.15mm or 0.075mm.

The application of domestic petroleum coke is in the stage of development and expansion, and the demand for corresponding petroleum coke grinding equipment is increasing. HCM team develops and produces HLM petroleum coke vertical mill according to various characteristics of petroleum coke. HLM series petroleum coke vertical mill of HCMilling(Guilin Hongcheng) is mainly composed of frame, transmission part, grinding disc, grinding roller, separator, sealing air pipeline and other parts. Compared with grinding other materials, the density of petroleum coke is small (1.3 × 10kg / M '), and the fineness of the finished product is required to be very fine due to its poor combustion characteristics. Therefore, using the existing vertical mill to grind petroleum coke is very easy to cause excessive return powder, and it is difficult for the return powder to stabilize on the material bed under the action of wind and be bitten by the grinding roller before grinding. In view of this technical difficulty, the technicians can discharge the qualified fine powder in time after technical improvement, so as to minimize the powder return rate and reduce the circulating load in the mill. Due to the material characteristics of petroleum coke, it is required that the powder separation capacity of petroleum coke vertical mill is high, and the density of petroleum coke is small. The HLM petroleum coke vertical mill of HCMilling(Guilin Hongcheng) optimizes the separator to ensure the cutting particle size.

According to the operation condition of the oil mill, it has reached or exceeded the design HCM value. In addition to HLM petroleum coke vertical mill, HCM also has a star pulverizer to grind petroleum coke - HC1700 petroleum coke Raymond pulverizer, which has also been highly praised by customers. If you have a project plan for the production of graphite electrode from petroleum coke, the petroleum coke vertical mill manufacturer of HCMilling(Guilin Hongcheng) is willing to provide you with the project equipment selection scheme, so as to reduce the cost and increase the efficiency and improve the production value in the petroleum coke production of graphite electrode project.

If you are in need of any non-metallic grinding mill, contact mkt@hcmilling.com or call at +86-773-3568321, HCM will tailor for you the most suitable grinding mill program based on your needs, more details please check www.hcmilling.com.