Vacuum rotary table filter and filtering process

The invention discloses a vacuum rotary table filter and a filtering process, and belongs to the technical field of titanium dioxide production, equipment advantages are utilized to monitor the content of residual titanium in filtered ferrous iron and the content of iron in titanium liquid, and the filtering feeding amount and the washing water flow are controlled through automatic interlocking, so that the filtering efficiency is improved. The quality fluctuation of the titanium liquid caused by manual regulation and control of water quantity is reduced, and the cost is reduced and the efficiency is improved; a three-washing process is adopted, so that the influence on the concentration of the titaniferous solution is reduced while ferrous separation is realized, and the dissolved amount of ferrous in the titaniferous solution is reduced; ferrous sulfate blocked in filter holes of the filter cloth is dredged by adopting a compressed air back flushing method, so that continuous and high-efficiency filtration