1,Material characteristics:

Mesophase carbon microbeads are micron-sized spherical carbon materials formed by thermal condensation polymerization of asphalt compounds during heat treatment to generate anisotropic mesophase small spheres and separated from the asphalt matrix. It is mainly used in lithium-ion battery anode materials, composite materials, activated carbon microspheres and other industries.

Wash oil contained in mesophase carbon microbead material(or toluene, etc.)Wet, with a specific gravity of about 600kg/m³, loose and fine powder. Wash oil content before drying approx.35% ~ 40%, required to dry after washing oil content of about 0.5. Boiling point of wash oil is 230 ℃ ~ 260 ℃.

2. Special drying process:

Because the material drying has the following characteristics and requirements: wet part is wash oil, needRecovery, and the boiling point of the washing oil is high; the washing oil will cause the agglomeration of the material during the evaporation process; the operating environment is good;The material stays in the dryer for a long time;The material is easy to catch fire in the air during the drying process.; in the exhaustWashing oil needs to be recycled and other characteristics, for many years there is no suitable equipment can be better applied to the drying of this material..

Hebei Yanming Chemical Equipment Co., Ltd. According to material analysis,Testing and years of engineering experience,Success willEnergy saving and environmental protection closed disc continuous dryermesophase carbon microspheresDryingEquipment, and hasForMany manufacturers of this material provide drying system solutions.

The intermediate phase carbon microspheres containing washing oil transported from the previous process are continuously and quantitatively added into the closed disc continuous dryer by a special broken bridge quantitative feeder for drying operation, and the material completes the heat and mass transfer process in the flow process to achieve the purpose of drying. Dried materials are discharged from the discharge port at the bottom of the dryer into a special cooler for cooling and then packaged. Wash oil vapor escaping from the materials is discharged from the dryer's wet discharge port. After dust removal by special dust removal equipment, the non-condensable gas is emptied, and the wash oil is cooled and recycled. The whole system is closed and does not contact the air.,And take special measures to ensure the safety of the whole system.Run.

3. Process characteristics:

①Continuous operation, high thermal efficiency. Since the closed disc continuous dryer is dried by conduction heat transfer, air is not allowed in the dryer during the drying process, and its tail gas carrying capacity is very small, so its thermal efficiency can reach more than 85%;

②Less material loss, good operating environment. In the drying of mesophase carbon microspheres in the closed disc continuous dryer, the material distribution is wet and dry due to the material going in and out, and the flow rate of dry tail gas is extremely low (about 0.1 m/s)Therefore, it is difficult for the material dust to float to the top of the equipment, and it is rarely carried away by the exhaust gas, which not only does not lose the material, but also does not pollute the environment, and meets the requirements of environmental protection;

③Equipment closed operation, solvent recovery thoroughly. The entire drying and cooling system is operated in a closed manner, and the exhaust gas adopts a specially designed dust collector, which can recover 99.9More than% of solvent;

④Special structural design, Prevent air from entering the drying system, thereby avoiding the occurrence of safety problems such as fire inside the equipment due to the entry of air during the drying process;

⑤The equipment is adjustable, and the material is dry and adjustable. The effect of material drying can be conveniently adjusted by adjusting the speed of equipment, the flow rate of heat transfer oil, the temperature of heat transfer oil, the angle of rake leaves, the amount of material added and the number of drying plates used in the continuous disc dryer;

⑥Before drying, the wet materials have poor fluidity, and the regular feeder will have the phenomenon of material bridge. According to many years of engineering experience, Yanming Company has designed a special anti-bridge quantitative feeder to ensure uniform, quantitative and continuous addition of materials into the dryer.

⑦For the materials in the drying process, they need to stay in the disc continuous dryer for a long time (More than 2 hours), adjust the internal structure of the dryer to ensure that the materials meet the requirements of the process.

⑧Equipment stable operation, long life, simple operation;

⑨Product quality is good;

⑩The special rake leaf device is used to make the material not easy to bond on the drying tray.