Polysilicon furnace inlet nozzle
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I believe everyone has seen similar situations: after the silicon rods fall over, some of the silicon slag ends up in the air intake nozzles of the polysilicon furnace, thereby blocking those openings. Our company has been facing this problem for some time now! Let’s discuss how the intake nozzle should be designed to prevent similar issues Or, on top of what already exists, what measures should be taken?
A stainless steel mesh is installed a few centimeters below the nozzle; the mesh pores can be relatively large, as long as it prevents larger pieces of silicon slag from falling down
There is some resistance, but its impact is minimal; since it’s located a few centimeters below the nozzle, the mixture does not disperse
It’s better to use a protruding stainless steel mesh, so that even if it falls, the pipe opening won’t be blocked
A Y-type filter can be added in front
Improving the existing equipment will not yield very good results; it seems that the only option is to add a filter screen, one with large mesh holes, so that larger debris particles do not fall through.