Sludge treatment device for steelmaking wastewater

The utility model discloses a sludge treatment device for steelmaking wastewater. The sludge treatment device comprises a sludge tank, a water inlet pipe, an overflow pipe, a clarifying tank, a partition plate, a first filter screen plate, a fixed plate, a second filter screen plate, a water outlet pipe, a drainage pipe and a conical plate, the sludge tank is connected with a water inlet pipe, the upper part of one side of the sludge tank is connected with an overflow pipe, the overflow pipe is connected with a clarifying tank, a plurality of clapboards are arranged in the clarifying tank, slotted holes are formed in the upper parts of the clapboards, and first filter screen plates are arranged at the slotted holes of the clapboards; a fixed plate is arranged in the sludge tank, a fixed hole is formed in the middle of the fixed plate, and an annular second filter screen plate is arranged at the fixed plate of the fixed hole; a conical plate is arranged in the sludge tank, an opening is formed in the middle of