Radioactive sludge transfer apparatus

A radioactive sludge transfer apparatus for transferring sludge stored in a first tank with supernatant solution to a second tank, comprising:

• a transfer body;
• a stirrer configured to blast the supernatant solution to the sludge to thereby produce sludge solution in the first tank;
• a sludge solution transferer configured to transfer the sludge solution to the second tank;
• an attitude control float;
• a floating force control ballast tank;
• and
• a controller configured to remotely control the stirrer, the sludge solution transferer and the floating force control ballast tank,
• wherein
• the stirrer, the sludge solution transferer, the attitude control float, and the floating force control ballast tank are mounted respectively to the transfer body,
• the stirrer is provided with a supernatant solution suction pump configured to suck the supernatant solution and an injection nozzle configured to jet the supernatant solution to the sludge in the first tank to thereby form the sludge solution, the injection nozzle having freely controllable nozzle angle,
• the sludge solution transferer is provided with a sludge solution suction pump configured to suck the sludge solution and transfer the sucked sludge solution to the second tank, and
• the sludge solution suction pump has suction ports including bottom suction ports and side suction ports which are opened or closed by an open/close device, and when the sludge solution remaining inside the first tank is sucked out, the side suction ports are closed by open/close device.