Reactors are pressure vessels used to complete processes such as sulfidation, nitration, hydrogenation, polymerization, and condensation. Materials are mixed and stirred inside the reactor, and residues may remain after the reaction. Some materials are particularly sticky and easily adhere to the reactor's inner walls, agitator shaft, and stirring blades. Therefore, to ensure high product purity and quality, the reactor must be cleaned after the reaction.、
Cleaning Procedure
1. Preparation: Move the reactor cleaning device to the reactor or tank to be cleaned and connect it to the high-pressure water source and power supply.
2. Parameter Setting: Set cleaning parameters such as pressure, flow rate, rotation speed, and cleaning time on the control system.
3. Start Cleaning: Start the cleaning device, and the nozzle will automatically extend and retract, beginning the three-dimensional rotation cleaning process.
4. Cleaning Monitoring: Monitor the cleaning process in real time using the control system to ensure cleaning effectiveness.
5. End Cleaning: After cleaning is complete, shut down the device, retract the retractable nozzle, and proceed with equipment cleaning and maintenance.
Daily maintenance precautions
1. When installing the reactor, ensure explosion-proofing. Multiple reactors should be separated to ensure adequate ventilation.
2. When selecting thermal oil, ensure it is of the correct type and do not contain any water.
3. After installing the reactor, maintain pressure with nitrogen to ensure there are no leaks before commencing operation. If a leak is detected, use soap foam to locate the leaking point in the nozzle and piping. Release the gas and tighten the screws, maintaining pressure with nitrogen.
4. Do not adjust the metal bursting disc at will. If a metal bursting disc ruptures, it must be replaced. When replacing a metal bursting disc, ensure that the convex surface of the disc faces upward.
5. After the reaction is complete, cool the reactor and vent the gas to the outside through a pipe to reduce the pressure inside the reactor to atmospheric pressure. Be careful not to disassemble the reactor. Then, loosen the main bolts and nuts and remove the reactor cover, placing it on the bracket. Be careful to protect the sealing surface when removing the cover. 6. When cooling, use water for internal cooling. Avoid rapid cooling to prevent excessive temperature differences that could cause cracks in the cooling coils and reactor. During operation, if the temperature inside the reactor exceeds 100°C, cool water must be supplied to the water jacket between the reactor lid and the magnetic stirrer, keeping the water temperature below 35°C to prevent demagnetization of the magnets.
7. When using the reactor, close the refrigerant inlet valve and drain the refrigerant from the reactor and jacket. Then, add the material, start the stirrer, and turn on the electric heater and steam valve. When the desired temperature is reached, turn off the valve and the stirrer. Afterwards, drain any remaining condensate from the reactor and jacket, rinse with warm water to remove the material, and thoroughly clean the interior of the vessel with alkaline water.
When the reactor is empty, do not open the steam valve or electric heater. The steam pressure must not exceed the rated operating pressure.
8. After operation, clean the reactor interior. Use cleaning fluid to remove any residue from the reactor and sealing surfaces. Clean frequently to keep it clean. Avoid using rough surfaces. 9. Regularly monitor the operating condition of the reactor and reducer, and refill lubricants promptly.
10. Replace the heating medium oil every six months.
11. Regularly inspect the safety valve, distillation port, heating rod, pressure gauge, and electrical instruments in the jacket and lid. Repair any malfunctions promptly.
12. When the reactor is not in use, frequently wash the reactor and clean the interior and exterior of the vessel with warm water to maintain cleanliness and enhance equipment durability.
