The invention discloses a gas and
solid separator of a recirculating
fluidized bed boiler, which comprises a downstream
flue and an upstream
flue which are partitioned by a guiding
flue gas up-down replicating film type screen, wherein the downstream flue and the upstream flue are communicated with storage bins hermetically installed below the downstream flue and the upstream flue through a turning channel, the front upper part of the gas and
solid separator is provided with a
flue gas inlet, the back upper part of the gas and
solid separator is provided with a
flue gas outlet, and four walls of the gas and solid separator are all heated water-cooling walls integrated with the boiler; and the gas and solid separator also comprises a uniform flow separating
pipe bundle positioned on the turning channel, the upper end of the uniform flow separating
pipe bundle on the turning channel is communicated with the guiding
flue gas up-down replicating film type screen, and the lower end of the uniform flow separating
pipe bundle on the turning channel is communicated with a lower transverse container. The invention also discloses a recirculating
fluidized bed boiler containing two sets of gas and solid separators. The recirculating
fluidized bed boiler has the advantages of wide application range, advanced process, simple manufacturing and installation, energy saving, consumption reduction and obvious emission reduction.