Mesh screen structure of polycrystalline silicon smelting furnace

• Main Authors: XIA ZHAN, WANG MINGFENG, ZHOU NANPING
• Format: Patent
• Language: Chinese; English
• Published: 09.06.2023
• Subjects: AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR; CHEMISTRY; COMPOUNDS THEREOF; CRYSTAL GROWTH; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; 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 utility model belongs to the field of polycrystalline silicon production equipment, and particularly relates to a mesh screen structure of a polycrystalline silicon smelting furnace, which comprises a smelting furnace body and further comprises a first inner cylinder and a second inner cylinder which are sequentially arranged in the center of an inner cavity of the smelting furnace from top to bottom. A catalyst chamber, a smelting chamber and a crucible chamber are sequentially arranged between the inner wall of the body and the outer wall of the second inner cylinder from top to bottom, an annular mesh screen is arranged between the crucible chamber and the smelting chamber, and the mesh screen is provided with a structure convenient to replace and comprises a positioning part and a fastening part. When the original mesh screen is broken, any common operator can easily and quickly replace the mesh screen without needing to be replaced by technicians of equipment manufacturers, so that time and labor are