Method for progressively accelerating centrifugal separation of fine particles with approximate settling velocity

• Main Author: ZHU SILONG
• Format: Patent
• Language: Chinese; English
• Published: 05.05.2023
• Subjects: CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL ORCHEMICAL PROCESSES; CENTRIFUGES; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention provides a method for progressively accelerating and centrifugally separating fine particles with approximate settling velocity, which comprises the following steps of: adding sample liquid into a centrifugal suite with an open slender tube, accelerating a centrifugal machine to N1 to ensure that the sample liquid at least submerges the opening of the slender tube, and then running the centrifugal machine at the constant speed of N1 for T1 time; continuously accelerating to N2, so that a small amount of sample liquid overflows from the separation bin to the collection bin, and then running for T2 time at the constant speed of N2, the back-moving distance of fine particles with relatively low settling speed during constant-speed running is smaller than the pushing-lifting distance; and after the centrifugal machine is progressively accelerated and runs at a constant speed for n times in total, the fine particles with approximate settling velocities are pushed up for multiple times and overflow an