Backwater path for meshing flusher of rotary extrusion type filter

• Main Authors: HUANG HAI, HU HAISHENG
• Format: Patent
• Language: Chinese; English
• Published: 03.09.2008
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The utility model provides a backwater channel of a filter screen washing device of a rotary squeeze filter; wherein, the washing device is arranged between a material inlet and a filtering cake outlet; a backwater device in the washing device comprises a backwater channel and a concave platform [8] which comprises all spray holes [7] and faces one side of a filter screen [3] by the washing device; the backwater channel is a channel which connects the concave platform to outside the radial position of a sealing part which is arranged between a filter screen support wheel [2] and an external shell plate [1], and the backwater channel is also a hole which connects the end points of the channel and a sealing cover on the external shell plate. The utility model enables the washing backwater to bypass the range of a rotary filter component and flow into the sealing cover from the concave platform to be converged with the filtered liquid, which change the way of extracting the backwater out of the filter singly to