Mounting structure of fiber rotary disc filter

The utility model discloses a mounting structure of a fiber rotary disc filter, which comprises a hollow water outlet shaft, a front support and a rear support, the front end of the hollow water outlet shaft is mounted on the front support, the rear end of the hollow water outlet shaft is mounted on the rear support, a plurality of rotary filter discs are mounted on the hollow water outlet shaft, and a first chamber and a second chamber which are communicated with each other are arranged in the rear support. The rear end of the hollow water outlet shaft penetrates through the first cavity and then abuts against the second cavity, the hollow water outlet shaft is installed in the first cavity in a sealed mode, a plurality of supporting rollers are installed in the second cavity, and the hollow water outlet shaft is in rolling fit with the supporting rollers. The rear end of the hollow water outlet shaft is supported and positioned through the supporting roller in the rear support, and the supporting roller can