Bed boiler separator returning charge system is vulcanized by power plant

The utility model relates to a bed boiler separator returning charge system is vulcanized by power plant, including the returning charge passageway of separator and separator lower extreme, the returning charge passageway includes the first returning charge passageway descending branch that connects gradually, returning charge passageway horizontal segment, and the returning charge passageway ascent stage, returning charge passageway bending segment, second returning charge passageway descending branch and returning charge passageway dipleg, returning charge passageway dipleg be connected with furnace, be provided with a plurality of hoods bottom returning charge passageway horizontal segment. Be provided with the expansion joint between separator and returning charge passageway. Be provided with the expansion joint between second returning charge passageway descending branch and returning charge passageway dipleg. The utility model discloses under the condition of the different coal qualities of furnace burning, the bed temperature and the bed of boiler are pressed stably, have alleviateed operation personnel regulating measure greatly, avoided the collapsing bed and the bed phenomenon of dying to guarantee the cycle safe operation of warpout group leader.