Pressure disc type filter

The utility model discloses a pressure dish filtering machine, which comprises a cylinder body, a main shaft and a plurality of circular plates for separating liquid, wherein the cylinder body is closed in supporting action, the main shaft is arranged in the cylinder body, and a plurality of the circular plates are arranged on the main shaft. The bilateral sides of the circular plates are equipped with scraper devices, and the end portion of the cylinder body is equipped with a distributing valve. The utility model is characterized in that each circular plate is formed by a plurality of sector plates with independent cavities, the cavities of the sector plate are respectively communicated with the cavity of the main shaft, the pressure dish filtering machine employs dish type filtering structure, is formed by a plurality of sector plates, and is large in filtering area, small in floor area, high in output, high in degree of automation, high in filter liquor clarity, low in white liquor mud residual alkali content, low in washing water consumption and low in civil engineering investment cost. Further, the pressure dish filtering machine overcomes shortages of other vaious white liquors in output, clarity, water consumption, white liquor mud residual alkali and the like, which can used in white liquor separation equipment of causticization latex in large scale pulp mill and have relatively fine practical application value and popularization value.