Device for sealing closed the branches of a cyclone separator

摘要

The cyclone separator separates solids from a gas-solid suspension, and the lower end of two cyclone branches in the same stage (17) are joined to form a single branch (18) in which the solids collected by the two cyclones are discharged through a single sealing device. The two lower branches are joined in a settlement chamber (21) forming a single branch (22). The device allows the joining of the lower of two or more branches in the same stage in a settlement chamber to form a single branch where the solids from the cyclones are discharged through a single sealing device, and the joining of the lower branches of primary and secondary cyclones to form a single branch discharged through a single sealing device. The lower zone lifted by gases from one or more rapid separators or from the tertiary and fourth stage cyclones passing through the sealing device into the joined cyclone branches improves the yield from the cyclone. The sealing device is a closing or dripping valve, or any other type of closure or combination of closures. The cyclones are mounted in the regenerator of a fluid catalytic cracking unit and operate at the pressures existing in such units.