The invention provides
polycrystalline silicon wafer magnetic
grinding equipment and a
polycrystalline silicon wafer magnetic
grinding method, and relates to the technical field of
polycrystalline silicon wafer processing. According to the polycrystalline
silicon wafer magnetic
grinding equipment and method, by designing a storage box, an electromagnetic
relay, a screen frame and a plugging
assembly, when a magnetic needle needs to be fished, a permanent
magnet disc and a
servo motor can be started again, the magnetic force of the permanent
magnet disc is gradually reduced, and meanwhile the magnetic force of the electromagnetic
relay is increased; the magnetic needles are gradually collected into the screen frame through the connecting
pipe in the rotating and rolling process, so that the magnetic needles are efficiently collected, meanwhile, the efficiency of cleaning the grinding
barrel and the efficiency of the whole polycrystalline
silicon wafer grinding operation are improved, next-time grinding can be rapidly carried out after cleaning is finished, and the grinding efficiency is improved. And by designing an
air pump, an annular circular
pipe, a guide
pipe and a one-way valve, the
air pump can finally introduce external air into the grinding
barrel through the annular circular pipe, the guide pipe, a storage box and a connecting pipe, so that the magnetic needle rolls more disorderly during rotation, and grinding is more sufficient.