The invention discloses a steel surface
rust removing device which comprises a sand-blasting drum, a cleaning head and a
drying part, wherein the cleaning head is arranged on one end of the sand-blasting drum, and the
drying part is arranged on one side of the cleaning head; the cleaning head is connected with a water tank through a pipeline, and a filter device is arranged between an inlet and an outlet of the water tank; the filter device comprises a
magnetic filter, a
backwashing filter, a high-precision filter and a cooler, a water pump is connected with an inlet of the
magnetic filter through the pipeline, a drain outlet of the
magnetic filter is connected with a drain tank through a drain
pipe, and a water outlet of the magnetic filter is connected with an inlet of the
backwashing filter through the pipeline; a drain port of the
backwashing filter is connected with the drain tank through the drain
pipe, and the water outlet of the backwashing filter is connected with an inlet of the high-precision filter through a
water discharge pipe; and an outlet of the high-precision filter is connected with an inlet of the cooler, and an outlet of the cooler is connected with the water tank through the pipeline. With the steel surface
rust removing device, water can be recycled, water in the water tank can keep clean all the time, and thus, a
sand blasting rust removing effect is ensured.