The invention provides a steel plate surface treatment device and a steel plate surface treatment method. The steel plate surface treatment device comprises a rack, a feeding device, a monitoring device, a rolling plate device, a sweeping device, a discharging device, an air source supply device, a
laser double-face cleaning device, an oxidized
waste treatment device, a control device and a safety protection device, and the feeding device, the monitoring device, the rolling plate device, the sweeping device, the discharging device, the air source supply device, the
laser double-face cleaning device, the oxidized
waste treatment device, the control device and the safety protection device are arranged on the rack. A steel plate is fed through the feeding device, is rolled to be flat through the rolling plate device, enters the
laser double-face cleaning device to remove surface
metal oxide, is subjected to oxidized waste sweeping through the sweeping device, is subjected to dust removal through a scraper dust removal device, and finally enters the discharging device to be discharged. After the oxidized waste is collected, secondary cyclic utilization of
metal oxide is completed through the oxidized
waste treatment device.
Compressed air provided by the air source supply device is environment-friendly energy, so that steel plate production is neat and
pollution-free; the electrical
automation efficiency is high, and the occupied area is small; protection is standard, and unmanned production can be achieved; and the oxidized waste is reutilized, and
energy conservation and emission reduction are achieved.