RADIOACTIVE SLUDGE TRANSFER APPARATUS

摘要

There is provided a radioactive sludge transfer apparatus for safely and surely transferring radioactive sludge contaminated by radioactive substance stored in a sludge storage tank to a transfer tank for the sake of tank inspection. A radioactive sludge transfer apparatus for transferring sludge stored in a sludge storage tank with supernatant solution to a transfer tank includes: a transfer apparatus body 1; a stirring apparatus 2 for blasting the supernatant solution to the sludge to thereby produce sludge solution in the one tank; sludge solution transfer means 8 for transferring the sludge solution to the transfer tank; an attitude control float 15; a floating force control ballast tank 16; and control means for remotely controlling the stirring apparatus 2, the sludge solution transfer means 8 and the floating force control ballast tank 16, wherein the stirring apparatus 2, the sludge solution transfer means 8, the attitude control float 15, and the floating force control ballast tank 16 are mounted respectively to the transfer apparatus body, the stirring apparatus 2 is provided with a supernatant solution suction pump 3 for sucking the supernatant solution and an injection nozzle 4 for jetting the supernatant solution to the sludge in the one tank to thereby form the sludge solution, the injection nozzle having freely controllable nozzle angle, the sludge solution transfer means 8 is provided with a sludge solution suction pump 9 for sucking the sludge solution and transfer the sucked sludge solution to the transfer tank, and the sludge solution suction pump 9 has suction ports 9A including bottom suction ports 10 and side suction ports 11 which are opened or closed by the open/close means 13, and when the sludge solution remaining inside the sludge storage tank is sucked out, the side suction ports 11 are closed by the open/close means 13.

主权项

1. A radioactive sludge transfer apparatus for transferring sludge stored in one tank with supernatant solution to another tank, comprising:
a transfer apparatus body; stir-transfer means for blasting the supernatant solution to the sludge to thereby produce sludge solution in the one tank and transfer the sludge solution to the another tank; an attitude control float; a floating force control ballast tank; and control means for remotely controlling the stir-transfer means and the floating force control ballast tank, wherein the stir-transfer means, the attitude control float and the floating force controlling ballast tank are mounted respectively to the transfer apparatus body, the stir-transfer means includes: a suction pump for sucking the sludge solution; a supernatant solution suction pump for sucking the supernatant solution and an injection nozzle for jetting the supernatant solution sucked by the suction pump to the sludge to thereby form the sludge solution, the injection nozzle having freely controllable nozzle angle; and a flow path switching valve, the sludge solution suction pump has suction ports including bottom suction ports and side suction ports which are opened or closed by open/close means, and when the supernatant solution is jetted from the injection nozzle, the flow path switching valve is switched on the injection nozzle side, and when the sludge remaining inside the one tank is sucked out, the side suction ports are closed by the open/close means.