Discussion on the process flow diagram for polysilicon
Thread Content
The relationship between the feeding amount in the reduction furnace and the diameter of the silicon rods ensures normal rod growth and good density. Relationship between silicon rod temperature, current, and feed rate. Production application of the closed-loop temperature control current for silicon rods and the automatic silicon rod addition current program. The relationship between the density of silicon rods produced in a pressure furnace, the composition, and temperature. The value created through joint development of hydrogenated C-C materials with suppliers. The relationship between the structure of the hydrogenation furnace and energy-efficient operation. How to design a furnace type with a uniform temperature field and fluid field throughout the furnace (requirements for the supplier). Comprehensive utilization of thermal energy in reduction furnaces.
The high-temperature hot water from the reduction furnace jacket is depressurized and flashed in a flash tank; the resulting saturated steam can be used for heating the reboilers in the distillation towers as well as for other heating processes in the chlorosilane separation and purification process
I was wondering if the original poster has a process flow diagram for production. .
Some content is highly confidential. It’s hard to discuss things when being cautious.