Abstract:

Aim at the gas drainage pump long running, pump body surface and impeller serious rust and corrosion and rust, prone to card pump wait for an accident, there is even twist off pump shaft and burned the danger of motor, which has a serious impact on coal mine gas drainage system stability and safety production. Based on water quality to test and mine rust sample analysis, it is concluded that rust include carbonate and ferric oxide. Using the ratio of oxalate liquid static soak cleaning, and artificial cleaning to remove rust, from the actual effect to see, can achieve the desired cleaning purpose.

Key words: gas drainage pump, derusting, oxalic acid, static soak