FILTERING DEVICE METHOD OF FILTERING DEVICE CLEANING AND FILTRATION METHOD Russian patent published in 2009 - IPC B01D25/00 

FIELD: mechanics.

SUBSTANCE: invention is designed for filtering. The device includes horizontal filtering zones arranged one above the other. At least one central distributing pipe, one common non-filtering channel and one common filtering channel adjoin the above filtering zones. There is a filtering layer on a filtering element, which is formed by at least one auxiliary filtering agent. The above mentioned filtering layer separates the area where filtrate is accumulated and sedimentation cavity. The device also includes circular receiving channel provided for each filtering element and covering the central axis of the filter. The said circular receiving channel fits into the sedimentation cavity with its outlet along the periphery and at the longest radial distance from the central filter axis. At the smallest distance from the central filter axis, the above channel is provided with at least one inlet connected to the non-filtrate channel for non-filtrate. Non-filtrate channel outlet is surrounded by the said filtering zones and provided in the area of the central filter axis. Each filtering element and/or group of filtering elements is provided with at least one liquid-operated valve being in the filtrate drain. Each filtering element and/or group of filtering elements is provided with at least one liquid-operated valve, being in the supply pipeline for rinsing liquid. The pipeline is equipped with remount-mount nozzles.

EFFECT: qualitative cleaning and rinsing.

13 cl, 4 dwg