| 摘要 |
<p>A continuously variable speed stirrer mechanism mounted at the top of the closed vessel carries on its shaft a displacement float and guide tube next to the paddle. There is a crystal guide plate near the base of the vessel above the crystal extraction port, and the liquid feed pipe passes from the top to near the base of the vessel. Continuous, reliable operation in relatively small space with smooth control of the rate of crystal formation.</p> |
