Calcining system for calcining semi-calcined coke by using pot-type furnace

The utility model provides a calcining system for calcining semi-calcined coke by using a pot-type furnace, which belongs to the technical field of needle coke production and comprises a pre-calcining bin, the pot-type furnace and a post-calcining bin which are sequentially arranged, a feed hopper elevator and a distributor are sequentially arranged between a discharge port of the pre-calcining bin and a feed port of the pot-type furnace; an automatic discharging machine and a discharging hopper elevator are arranged between a discharging port of the pot-type furnace and a feeding port of the after-calcining bin, a preheating zone, a calcining zone and a cooling zone are sequentially arranged in the pot-type furnace in the material conveying direction, the temperature of the preheating zone ranges from 500 DEG C to 700 DEG C, the temperature of the calcining zone ranges from 800 DEG C to 900 DEG C, and the negative pressure of all flame paths in the pot-type furnace ranges from-10 Pa to-40 Pa. The utility mod