Slurry bed reactor catalyst filtering application system device

The invention discloses a slurry bed reactor catalyst filtering application system device. A full-automatic cluster filter and related accessory equipment are connected in parallel with a through pipe between a BYD reactor and a precision filter, and other process flows are invariable; the original main process is kept invariable in the original BDO ethynylation process, only a cluster filter and related accessory equipment are increased, the original process can be returned at any time, the original process is not influenced, catalyst particles flowing down from the BYD ethynylation reactor are automatically intercepted by virtue of a novel process, the catalyst particles automatically return to the BYD ethynylation reactor, the catalyst loss is avoided, the amount of a filter element of the lower-order precision filter is reduced, the labor intensity of operators is alleviated, the device can be an automatic filter and can serve as waste catalyst recycling equipment after inactivation, the special waste catalyst recycling equipment and system are not used any more, the one-machine two-purpose aim of the process is achieved, and the cost and investment are saved.