Continuous monitoring system for emission of flue gas form mercury

The utility model relates to a continuous monitoring system for emission of flue gas form mercury. The continuous monitoring system comprises a sampling probe, a smoke dust filter, a reactor, a gas-water separating device, a mercury measuring device, a jet flow device and an air compressor which are connected in sequence through a pipeline, wherein the reactor is connected with a first container filled with a divalent mercury adsorption solution through a first peristaltic pump, the reactor is connected with a second container filled with divalent mercury reducing solution through a second peristaltic pump, the reactor is connected with a liquid waste barrel through a third peristaltic pump, the gas-water separating device is connected with the liquid waste barrel through a fourth peristaltic pump, and the sampling device, the first peristaltic pump, the second peristaltic pump, the third peristaltic pump, the fourth peristaltic pump, the mercury measuring device, the jet flow device and the air compressor are electrically connected with a control circuit, respectively. The continuous monitoring system provided by the utility model is in a simple structure, few reactors are adopted, and the utilized chemical reagent is nontoxic and harmless, thereby avoiding environmental pollution and guaranteeing high reliability, and the continuous monitoring system is capable of realizing online automatic continuous monitoring, improving the working efficiency and the measuring precision and lowering the cost.