Automatic grabbing device for barrels of low and intermediate level radioactive waste

Abstract

The invention provides an automatic grasping device suitable for low and medium-level radioactive waste barrels, including a waste barrel grasping bracket assembly, a lifting rod assembly, a pressure sensing assembly, a clamping and rebounding assembly, and a background control system. The pressure sensing assembly is installed In the middle of the waste bin grabbing bracket assembly; the lifting rod assembly includes two lifting rods. When the waste bin grabbing bracket assembly moves to the top of the radioactive waste and falls, the pressure sensing component first contacts the top cover of the waste bin and transmits the contact information to The background control system, at this time, the background control system detects that the main body of the grabbing waste bin is in place, and clamps and moves the radioactive waste bin to the waiting position and then continues to descend. The bottom of the lifting rod assembly touches the top cover of the waste bin and moves upward to drive the clip back The bomb assembly is separated from the main body of the waste barrel to complete the movement of the radioactive waste barrel. The invention realizes motorless control, has simple structure and convenient operation.

Description

technical field [0001] The present invention relates, in particular, to an automatic grabbing device suitable for low and medium level radioactive waste barrels. Background technique [0002] With the development of the nuclear energy industry and the application of radioisotopes, it will bring huge economic and social benefits to the human society, but at the same time, a large amount of radioactive waste will also be produced. According to the classification of national standard radioactive waste (GB9133-1995), radioactivity can be divided into exempted waste, low-level radioactive waste, medium-level radioactive waste and high-level radioactive waste according to its half-life and radioactive activity level. Among them, low- and medium-level radioactive waste It accounts for more than 95% of the volume of all radioactive waste. After solidification and volume reduction, the radioactive waste generated by the nuclear power plant is stored in cement drums or steel drums, a...

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Problems solved by technology

However, this design has certain improvements compared with the traditional grabbing device in nuclear power plants, but there are still many defects. On the one hand, whether the device grabs or releases the waste bin, it needs to control the double claw mechanism and the sliding rod frame through the motor In the process, it is necessary to manually control the different motor screw rods to grasp the motor screw rods and the lifting motor screw rods, which is time-consuming and labor-intensive, and is extremely cumbersome; on the other hand, the device is designed to have contact with the ground. Universal wheel mechanism

However, in practical applications, the waste bins are piled up in several layers, so the structure of the floor universal wheel obviously cannot be used normally, and there are defects in the design.

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