Filter belt dewatering device of belt filter press

A filter belt dewatering device of a belt filter press is mounted on one side of a transmission roller of the belt filter press and comprises a water absorption roller, the water absorption roller is arranged on one side of the transmission roller in parallel and is in contact and rotary connection with the surface of the transmission roller, a filter belt penetrates through the space between the transmission roller and the water absorption roller, the water absorption roller and the transmission roller rotate synchronously, and the water absorption roller and the transmission roller rotate synchronously. The two ends of the water absorption roller are rotationally connected with adjusting connecting frames correspondingly, the adjusting connecting frames at the two ends are slidably connected with the supporting frames at the two ends of the transmission roller correspondingly, limiting sliding holes are formed in the adjusting connecting frames, and limiting sliding blocks which are slidably connected are a