High-purity clean silicon material classification screening device and using method thereof

Abstract

The invention discloses a high-purity clean silicon material classification screening device and a using method thereof, the high-purity clean silicon material classification screening device comprises a compartment body with a preset volume, the compartment body is provided with a top end, a front end and a rear end, the front end and the rear end are opposite, the top end is provided with a feeding port, the front end is provided with a discharging port, and the rear end is provided with a dismounting port; the multiple layers of screens are detachably arranged in the compartment body, the multiple layers of screens are vertically arranged in the compartment body, the interior of the compartment body is separated from top to bottom by the multiple layers of screens, and the interior of the compartment body is divided into a first cavity, a second cavity, a third cavity and a fourth cavity from top to bottom by the multiple layers of screens; each cavity is communicated with a discharge port at the front end of the compartment body; the movable mechanism is arranged at the bottom of the compartment body and comprises four air cylinders, the output ends of the four air cylinders are fixedly connected with the bottom of the compartment body, and the compartment body can swing leftwards and rightwards after the four air cylinders are started; and a vertical space is formed between the upper group of torsion springs and the lower group of torsion springs and is used for avoiding the displacement of the torsion springs.

Description

technical field [0001] The invention relates to the technical field of silicon material processing, in particular to a high-purity and clean silicon material grading and screening device and a method for using the same. Background technique [0002] Silicon is the most abundant element semiconductor on the earth's crust. It has superior properties and relatively mature technology. It has become the main raw material of solid-state electronic devices. Silicon is also the semiconductor material with the largest output and widest application. Its output and consumption mark a country's electronic At the industrial level, in order to meet the needs of VLSI, the preparation technology of silicon single crystal with high integrity and high uniformity is developing rapidly. [0003] Due to the different particle sizes of silicon materials, it needs to be used after screening and grading. The screening machines in the prior art have general operating stability and use light polyuret...

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Problems solved by technology

[0003] Due to the different particle sizes of silicon materials, it needs to be used after screening and grading. The screening machines in the prior art have general operating stability and use light polyurethane screens. The light weight of such screens does not require high installation conditions. , but the disadvantage is that the cleanliness of silicon material screening is not high due to wear resistance and short service life, which cannot meet the screening standards for high-purity and clean silicon materials. If a metal screen with a high quality is selected, the existing installation structure cannot bear the weight

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