There are many aspects involved in the production of magnesium sulfate heptahydrate. This is a series of chemical reactions. Therefore, it is necessary to prevent the reduction of productivity while ensuring the quality of production. Let ’s teach everyone How to prevent lower productivity.
1. Notify the refrigeration process to stop the operation of the refrigerator, refrigerant pump and cooling tower accordingly, and notify the heating workshop to supply the air washing pump.
2. Close the clear liquid pump outlet valve and stop the clear liquid pump.
3. Close the outlet valve of the magnesium sulfate heptahydrate raw material liquid pump to stop the operation of the raw material pump.
4. After the refrigeration process is stopped, stop the operation of the main circulation pump of the freezing crystallizer, and open the closed water valve of the washing and filling pump of the freezing crystallizer. After the sealed water flows out, open the inlet valve of the pump, start the washing and filling pump and slowly open the outlet valve of the pump.
5. Slowly open the washing and filling steam valve of the freezing crystallizer to ensure that the steam pressure behind the valve is not higher than 0.2MPa. At the same time, open the condensate valve. When the temperature of the material liquid at the outlet of the washing and filling pump reaches 45 ° C, notify the heating workshop that the heating is complete. , Close the freeze crystallizer inlet valve and sealed water valve, close the washing and filling pump valve, stop the washing and filling pump, close its inlet valve and sealing water valve, close the washing and filling pump valve and the balance valve, and connect the washing and filling pump to the pipeline Inside the liquid discharge pipe.
6. Restart the main cycle of the freeze crystallizer.
7, notify the refrigeration process to turn on the freezer and refrigerant.
8. When the temperature of the freezing crystallizer reaches the control temperature, turn on the raw material liquid system to supply the raw material liquid.
9. When there is cold mother liquor flowing out of the settler, open the outlet valve to supply cold mother liquor to the heater.
Only by operating according to the correct reaction method can we guarantee the production efficiency of magnesium sulfate heptahydrate and ensure its production quality. The content introduced above can be used as a reference in future practical operations. I believe it can bring you Certainly helped.