Microsphere separation method and screening system

Abstract

The invention relates to a microsphere separation method and a screening system, which are suitable for screening and separating pellets. In the method, a stator plate and a rotor plate are used to form a narrow slit; the impulse stream is injected from the bottom of the narrow slit, and under the disturbing action of periodical starting and stopping of the stream, the microspheres are driven to disperse and pass through the narrow slit are prevented from blocking the narrow slit; and the width of the narrow slit is regulated to realize the screening of the microspheres with different diameters. The system comprises a narrow slit unit, a narrow slit setting and measuring unit, a microsphere disturbance device, a lifting device and a data gathering and controlling unit. The invention has the advantages that the narrow slit is used for screening the microspheres so as to enhance the screening efficiency of the microspheres; the impulse stream method is adopted to fully disperse the microspheres to pass through the narrow slit so as to ensure the screening quality of the microspheres; a high-precision worktable is used to drive the rotor plate so as to ensure the screening precision of the microspheres; and the whole system is controlled by a computer software interface, so that the modification of different kinds of parameter is visible and easy, and the operation is easy.

Description

technical field [0001] The invention relates to the research on the rapid and accurate separation method of microspheres and the design of a screening system, which belongs to the field of target pellet screening. Background technique [0002] Laser inertial confinement fusion (Inertial Confinement Fusion, ICF) is one of the technical means to achieve thermonuclear fusion, which has far-reaching significance for human energy. In this reaction, a large number of target pellets (ie, the microspheres described in the manual ). Before making the target pellets, it is necessary to screen the mass-produced spherical shells, reject the inferior balls, and select the high-quality balls, and then measure the parameters of the balls to be used as the target pellets one by one to select the geometric parameters that are consistent and can be used. Target spherical shell. In order to obtain qualified target pellets, the amount of initial target production is very large. If manual meth...

AI Technical Summary

Problems solved by technology

In addition, there are scanning electron microscopy (SEM) methods, X-ray methods, and methods for measuring the surface morphology of target balls using atomic force microscopy (AFM). This method has the advantage of high precision, but it is time-consuming and laborious, and the screening efficiency is low.

If it is made into the form of a filter, it can be separated on a plane at the same time, and the speed is fast, but because the precision of the sieve itself is too low, and there is no room for improving the precision

[0004] However, relying solely on the free floating of the target pellets will lead to the clustering of the target pellets, and all of them will gather in the lower part of the narrow gap. It is necessary to try to disperse the target pellets and speed up the separation.

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