| 摘要 |
The present invention provides a glycerin refining apparatus for refining high-purity glycerin by preparing crude glycerin and using an evaporation device. The glycerin refining apparatus comprises: a raw material tank for storing the crude glycerin; a preheater connected to the raw material tank to primarily heat the crude glycerin supplied by the raw material tank; a centrifugal thin film evaporator directly connected to the preheater, precipitating and separating the foreign materials of the crude glycerin while receiving, secondarily heating and evaporating the heated crude glycerin, and generating glycerin steam; a pitch tank installed and connected to the lower side of the centrifugal thin film evaporator to store the precipitated foreign materials; a multistage condenser arranged at the outer side of the centrifugal thin film evaporator and having a lower side installed and connected to the centrifugal thin film evaporator to receive and condense the evaporated glycerin steam and discharge uncondensed glycerin steam upward; a recovery tank arranged at the lower side of the multistage condenser and connected to a pipe at the lower part of the tower of the multistage condenser to capture and store high-purity glycerin condensed in the multistage condenser; and a vacuum facility installed and connected to the multistage condenser to maintain the centrifugal thin film evaporator and the multistage condenser in high vacuum. Therefore, high-purity glycerin can be manufactured, wherein the problem of the purity of glycerin that is the weak point of evaporative glycerin, has been solved. |
