Dust-free automatic discharging device for graphite crucibles

Abstract

The invention discloses a dust-free automatic discharging device for graphite crucibles. The dust-free automatic discharging device for the graphite crucibles comprises a material suction crushing mechanism and a material collection filtering mechanism which are connected with each other, wherein the material suction crushing mechanism comprises a plurality of material suction pipes, crushers are arranged below the material suction pipes, when the material suction pipes are inserted into the corresponding crucibles, the crushers break and crush graphite in the crucibles, and the crushed graphite is sucked in by negative pressure in the material suction pipes and transferred to the material collection filtering mechanism; and each crusher comprises a stirring rod, the tops of the stirring rods are connected with a power mechanism, the bottoms of the stirring rods penetrate through the material suction pipes and then are located below the material suction pipes, crushing blades are arranged at the bottoms of the stirring rods, and the power mechanism drives the stirring rods and the crushing blades to rotate so as to crush the graphite. The dust-free automatic discharging device for the graphite crucibles is high in material suction efficiency and stable in product quality.

Description

technical field [0001] The invention relates to the field of crucible discharging, in particular to a dust-free automatic discharging device for graphite crucible. Background technique [0002] At present, the anode materials of commercialized lithium-ion batteries are still dominated by graphite materials. In the preparation process of graphite materials as anode materials, it is necessary to first prepare massive or large granular natural graphite or artificial graphite precursors (petroleum coke , needle coke, pitch coke, etc.) are broken into powdery particles with suitable particle size, and then carbonized and graphitized. For example, natural graphite is graphitized to remove impurity elements inside natural graphite and improve the purity of C. For example, carbonization of petroleum coke, needle coke, and pitch coke, followed by graphitization treatment, can improve their capacity and cycle performance, so as to prepare qualified graphite-based negative electrode ma...

AI Technical Summary

Problems solved by technology

[0004] After the carbonization or graphitization treatment is completed, the carbonized material should be taken out from the crucible. After the graphite is carbonized, it becomes graphite powder. At present, it is mainly sucked out by vacuum suction, but the efficiency of vacuum suction is low; at the same time, petroleum coke, Needle coke or pitch coke fine powder will agglomerate after carbonization, the existing vacuum suction technology is difficult to take out the agglomerated material from the large crucible, causing technical problems

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