1. Open the cooling water slowly to prevent the cooling pipe from cracking due to severe vibration
2. Inject appropriate water into the vacuum pump tank and keep the water flowing. Connect the material bottle to the inlet and the discharge bottle to the outlet to maintain good airtightness. (One of the three discharge ports is for discharging materials, while the other two are for discharging water). At this point, the vacuum pump can be turned on. The lower the vacuum degree, the better the airtightness of the instrument, and the higher the concentration efficiency.
3. Start feeding and adjust the feeding speed. If the speed is too fast, it will reduce the concentration efficiency, and the material will also run out of the outlet, causing material loss. If the feeding is too slow, the material will be overheated.
4. Open the drain valve and turn on the steam. When a large amount of steam comes out, adjust the switch of the drain valve appropriately, and maintain the amount of steam entering the equipment below 0 and 1 kilograms throughout the entire use process, that is, keep the pressure gauge at the position below 0 and 1.
5. The material can be circulated to achieve the desired concentration. After concentration is complete, the steam should be turned off first, and then the material should be evacuated repeatedly to minimize losses.
6. After concentration is completed, first rinse the equipment repeatedly with 1% NaOH, then rinse it repeatedly with 1% HCl, and finally rinse it repeatedly with water until the equipment is free of dirt, transparent, and clean. Turn off the vacuum pump and cooling water.
7. When using the equipment, the water in the condenser must be drained to prevent the condenser from breaking after freezing in winter.