High-efficiency urea airflow mixer for tail gas purification

The utility model relates to a high-efficiency urea gas flow mixer for tail gas purification, which comprises a mixing pipe, a gas flow inlet and a gas flow outlet are formed in the mixing pipe, and an inner cavity is defined by the pipe wall between the gas flow inlet and the gas flow outlet; the spoiler is arranged in the inner cavity of the mixing pipe and deviates to the airflow inlet, and theplate surface of the spoiler and the cross section of the mixing pipe are intersected to form a certain angle; the urea nozzle is arranged on the pipe wall of the mixing pipe, an opening of the ureanozzle is formed in an inner cavity of the mixing pipe, and the urea nozzle is located at the downstream of the airflow relative to the spoiler; the monitoring assembly comprises a temperature sensorand an SCR nitrogen and oxygen sensor, and the temperature sensor and the SCR nitrogen and oxygen sensor are arranged on the wall of the mixing pipe. The tail gas flow is stirred by the spoilers, andthe disturbed tail gas flow