| 摘要 |
An improved system for evaporating liquid to obtain solid residue which includes a vortex evaporator for evaporating liquid from a liquid and solid solution in a container is provided. The vortex evaporator includes a driver coupled to the container for moving the container to cause the solution in the container to form a thin film on the interior wall of the container, a heat source for heating the solution in the container, and a sparge tube with an outlet positioned to supply sparge gas onto the solution in the container to decrease the partial pressure on the solution, thereby increasing the evaporation rate of the liquid from the solution. The driver is an orbital driver and the container is preferably clamped near its top, thereby causing the container to move in a conical manner. The driver can be selectively operated in an intermittent pulse mode which causes the solution inside the container to form a thin film, thereby increasing the surface area of the solution and increasing the evaporation rate.
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