Agitated Nutsche Filter (ANF)

The Agitated Nutsche Filter (ANF) is closed equipment designed to process solid and liquid separation and is operated with pressure or vacuum. The filtration process is done in a closed vessel to ensure odorless, contamination-free, non-polluting working conditions, and maintains product purity and hygiene. These filters are used in the manufacturing process of various Pharmaceutical API products, Food Products, Chemicals, Fine Chemicals, Agro Pesticides, Dyes and Intermediates, Paints, Insecticides, and for Sterile applications as well.

The ANF comes with a stirrer mechanism which agitates the slurry efficiently during cake washing, smoothens and squeezes the cake during the filtration process, and even helps in the automatic discharge of the final cake. The ANF includes a pressure vessel in which a main shaft rotates and also moves top to bottom in the vertical direction. High-quality stirrer blades are mounted on the shaft, capable of performing different functions. A filter plate is positioned at the bottom of the vessel, level with the discharge port, to assist in maximum cake removal. The filter medium, typically a filter cloth, is fitted on the filter plate and can be replaced as needed.

The overall attention to design details allows for simplified validation of the units. The agitator is supported from the top, with the agitator drive, the bearings, and the shaft seal installed externally. Shaft sealing is with a double mechanical seal and a convoluted bellows. The agitator arms have a specially designed bottom smooth surface that presses the cake when rotated counterclockwise, and mix and agitate the cake when rotated clockwise.