The utility model relates to the technical field of
ferrous metallurgy RH vacuum refining, particularly discloses a
silicon steel production oriented RH refining device based on double
vacuum pump cooperation and a direct connection feeding
system, and mainly solves the problems that the RH
treatment period of
silicon steel production is mismatched with the
continuous casting production
rhythm and the
alloy feeding efficiency is
bottleneck. According to the scheme, a second set of
vacuum pump system is additionally arranged on the basis of traditional three-vehicle five-position arrangement, two sets of independent
vacuum pumping systems are formed, vacuum treatment can be conducted on two treatment stations at the same time, and the comprehensive
treatment period of the RH link is shortened. Meanwhile, each
station is provided with an independent
ferrosilicon feeding
system which comprises a high-capacity overhead
bunker, a weighing hopper and a vacuum charging bucket directly connected with an articulated chute, so that the
ferrosilicon feeding time is shortened. According to the three-vehicle five-position RH vacuum refining device, the vacuum treatment efficiency and the feeding process of the three-vehicle five-position RH vacuum refining device are synergistically optimized, and efficient matching of the RH refining period and the
continuous casting rhythm during
silicon steel production is achieved.