Mobile secondary feeding device for polycrystalline ingot furnace

• Main Authors: CHEN XIANGWEI, XUE KANGMEI
• Format: Patent
• Language: English
• Published: 30.09.2015
• Subjects: AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR; CHEMISTRY; CRYSTAL GROWTH; METALLURGY; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE; REFINING BY ZONE-MELTING OF MATERIAL; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE; SINGLE-CRYSTAL-GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL

The invention relates to a mobile secondary feeding device for a polycrystalline ingot furnace. The device comprises a mobile trolley, a charging hopper which is installed on the mobile trolley, a conveying device and a lifting device, wherein a discharging valve is arranged at the bottom of the charging hopper, the conveying device comprises a shell communicated with the discharging valve, a feeding device used for receiving and transferring silicon materials, and a feeding tube which can ascend and descend and is used for receiving the silicon materials conveyed by the feeding device are arranged in the shell, and a connector for the feeding tube to stretch out is formed in the shell; the lifting device controls the feeding tube to ascend and descend. The conveying device is provided with a connector used for being connected with a feeding connector of the ingot furnace. In the feeding process, the lifting device controls the feeding tube in the conveying device to descend and the feeding tube enters the ingot furnace through the connector. The silicon materials in the charging hopper continuously enter the feeding tube under the action of the feeding device, then, the silicon materials enter the ingot furnace, and therefore secondary feeding of the polycrystalline ingot furnace is achieved, and the crucible utilization rate and the yield of the ingot furnace are increased.