Device for producing ethoxylation derivatives

A device for producing ethoxylation derivatives, comprises:

• A reactor, comprising a main circulation feed inlet, a main circulation feed outlet at the bottom of the reactor, a vacuumizing pipe, an evacuation pipe, a nitrogen input pipe, a chain initial dose feed inlet, an ethylene oxide feed inlet and a stirring device arranged in the reactor, valves are arranged on the vacuumizing pipe, the evacuation pipe, the nitrogen input pipe and the main circulation feed outlet respectively;
• A main circulation heat exchanger, comprising a first feed inlet and a first feed outlet;
• And a main circulation pump ;
• The main circulation feed outlet is communicated with the first feed inlet of the main circulation heat exchanger through the main circulation pump, the first feed outlet of the main circulation heat exchanger is communicated with the main circulation feed inlet of the reactor;
• Wherein, an assistant circulation feed inlet is arranged on the reactor, and an assistant circulation feed outlet is arranged at the bottom of the reactor, and a valve is arranged at the assistant circulation feed outlet, and comprises:
• An assistant circulation heat exchanger, comprising a second feed inlet and a second feed outlet;
• And an assistant circulation pump with lower starting quantity than the said main circulation pump;
• the assistant circulation feed outlet of the reactor is communicated with the second feed inlet of the assistant circulation heat exchanger through the assistant circulation pump, and the second feed outlet of the assistant circulation heat exchanger is communicated with the assistant circulation feed inlet of the reactor.