SNCR urea constant-temperature preparation tank

The utility model discloses an SNCR (selective non-catalytic reduction) urea constant-temperature preparation tank which comprises a preparation tank body, an annular protective shell is fixedly connected in the preparation tank body, an electric heating electromagnetic coil is arranged in the annular protective shell and electrically connected with a control switch, the control switch is electrically connected with a PLC (programmable logic controller), and the PLC is electrically connected with the preparation tank body. And the inner top of the preparation tank body is fixedly connected with a temperature sensor, the temperature sensor is electrically connected with a display, and the temperature sensor is electrically connected with a PLC. According to the device, an electric heating electromagnetic coil is automatically controlled to be started and stopped, so that the temperature in the preparation tank body is adjusted according to the actual situation, the temperature in the preparation tank body is k