Pneumatic ash conveying system for single furnace of thermal power plant

The utility model discloses a pneumatic ash conveying system for a single furnace of a thermal power plant, which is characterized in that a connecting pipe is communicated between an economizer ash conveying pipe and an electrostatic dust collector ash conveying pipe, and switching valves are respectively arranged at the joint of the connecting pipe and the economizer ash conveying pipe and at the tail end of the connecting pipe; and an ash conveying and air supplementing pipeline is communicated between the connecting pipe and the compressed air pipeline. The system has the advantages that the system is unstable in operation at the initial starting stage, the connecting pipe is isolated from the system through the two switching valves, independent conveying of the economizer ash conveying unit and the electrostatic dust collector ash conveying unit is achieved, blockage of the electrostatic dust collector ash conveying pipe is avoided, and normal operation of the electrostatic dust collector is guaranteed;