The invention discloses an automatic deslagging system for a sewage plant, which comprises a movable plate trailer and a negative pressure adsorption deslagging device, the negative pressure adsorption deslagging device comprises a cleaning tank, a vacuum pump and a floating sludge suction port, the cleaning tank is provided with a suction pipe and an emptying pipe, the suction pipe is provided with a suction electromagnetic valve and is connected with the floating sludge suction port through a suction hose, and the emptying pipe is connected with the movable plate trailer. An emptying electromagnetic valve is arranged on the emptying pipe; the floating sludge suction port is dragged by a remote control tractor and can move on the pool surface of the open pool body of the sewage plant; the main body of the mud suction port is in a streamline horn mouth shape, the top of the mud suction port is connected with a vertical pipe, a plurality of arc-shaped floating rings are arranged in the circumferential direction, a U-shaped cutter is arranged in the vertical pipe, and the vacuum pump, the suction electromagnetic valve and the emptying electromagnetic valve are powered by a control cabinet and controlled by a control unit. The whole machine can conveniently reach everywhere of a sewage plant and quickly carry out cleaning work, use is flexible, simple and convenient, the floating mud suction opening is dragged through the remote control tractor, the machine can move on the pool face of an open pool body of the sewage plant, the cleaning range is large, and efficiency is high.

本发明公开了一种污水厂自动除渣系统，包括移动板车和负压吸附除渣装置，负压吸附除渣装置包括清理罐、真空泵和浮动吸泥口，清理罐设有抽吸管和排空管，抽吸管上设有抽吸电磁阀并通过抽吸软管连接浮动吸泥口，排空管上设有排空电磁阀；浮动吸泥口通过遥控牵引器牵引，可在污水厂敞口池体的池面上移动；吸泥口主体为流线型喇叭口形状，顶部连接立管，沿周向设置有多个弧形浮圈，立管内设有一个U型切削器，真空泵、抽吸电磁阀和排空电磁阀通过控制柜供电，并通过控制单元控制。本发明，整机可便捷到达污水厂各处，快速展开清理工作，使用灵活简便，浮动吸泥口通过遥控牵引器牵引，可在污水厂敞口池体的池面上移动，清理范围大，效率高。