CIRCULATING FLUIDIZED BED BOILER WITH GAS-SOLID SEPARATOR

摘要

A gas-solid separator for a boiler includes a film divider defining first and second flue channels, an expanded cornering channel, a sealed collecting chamber, flue inlet and outlet provided at a front upper portion and a rear upper portion of the separator respectively, an even flow distributing tube set, and wear resistant connecting duct at the cornering channel, the upper and bottom portions of the even flow distributing tube set linked to the film bottom transverse tube collecting box and the collecting chamber transverse tube collecting box respectively, the upper and bottom portions of the wear resistant connecting duct linked to the film bottom transverse tube collecting box and the connecting duct transverse tube collecting box respectively. The boiler with low/medium circulating rate uses single stage inertial gravity separation. The boiler with high circulating rate uses a low temperature cyclone separator with the present invention when the flow rate at the second flue channel is relatively high.