METHOD AND DEVICE FOR PERTURBING THE SLUT WITH A MESH STRUCTURE

摘要

1. A method of separating sludge from the feed material in the tank, comprising the steps of:! introducing feed into the tank; ! enabling deposition of the feed in the tank; ! providing the possibility of formation of aggregates from sludge; ! providing the possibility of deposition of sludge aggregates at the bottom of the tank and the formation of a layer of sludge with a mesh structure and! applying a shear force, essentially the same throughout the perturbation zone, in the upper region of the mesh layer to destroy the mesh sludge in the disturbance zone for a given time interval,! whereby the trapped liquid is released from the sludge with a mesh structure in the perturbation zone and the relative density of the sludge under the perturbation zone is increased. ! 2. The method according to claim 1, where the shear force is applied using a shear force application mechanism selected from the group consisting of liquid jets, gas jets, mechanical vibrations, ultrasonic pulses, creating a fluidized bed and mechanical mixing. ! 3. The method according to claim 1, further comprising the step of applying substantially the same cumulative shear force to the sludge with a mesh structure in the perturbation zone for a given time interval. ! 4. The method according to any one of claims 1 to 3, further comprising the step of applying essentially the same number of shear events to the sludge with a mesh structure in the perturbation zone for a given time interval. ! 5. A separation device for separating sludge from the feed material, including:! a tank for receiving the supplied material, and the supplied material settles in the tank,