Anti-swing device for cranes in nuclear power plant radioactive waste temporary storage

Abstract

The invention discloses an anti-swing device used for a radioactive waste transitory warehouse crane in a nuclear power plant. The anti-swing device comprises a stationary cylinder, a movable pulley block, and a lifting hook. A crane transporting vehicle pedestal and the top of the stationary cylinder are in a rigid connection. The movable pulley block is disposed on the upper end of the lifting hook. The inner wall of the cylinder, close to the bottom open end, of the stationary cylinder is rigidly connected with support tripod plates. According to the anti-swing device provided by the invention, by utilization of a cooperative relationship between a gripping apparatus pedestal and the support tripod plates, and by restriction of swings, at the horizontal transporting direction, of the gripping apparatus pedestal, swing control during transporting processes of waste barrels is indirectly realized and an anti-swing effect is stable and reliable, and therefore high-speed transportation of the waste barrels are guaranteed, smooth running of the crane is guaranteed, plant safety of radioactive waste transitory warehouses is guaranteed, and the work efficiency of the crane is raised.

Description

technical field [0001] The invention relates to a crane transfer anti-swing technology, and more specifically, the invention relates to an anti-swing device for a crane in a radioactive waste temporary storage warehouse of a nuclear power plant. Background technique [0002] The radioactive waste temporary warehouse crane is used to transfer, position, stack and recycle the radioactive waste barrels in the radioactive waste temporary warehouse. Its main operating objects include 400L waste barrels and high-integral containers (or HIC waste barrels). Among them, the over-standard 400L waste barrel and the high overall container are stored in wells. The waste barrel will swing during the transfer operation, which not only endangers the smooth operation of the crane and the safety of the radioactive waste temporary storage building, but also greatly prolongs the transfer time and reduces the transfer efficiency of the crane. Therefore, during the horizontal transfer operation ...

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Problems solved by technology

However, practice has proved that the anti-swing device of the telescopic sleeve has the following problems: 1) The volume is large, the quality is high, and the operation is inconvenient. Since the telescopic sleeve weighs 5.5 tons, it occupies the entire well of the temporary storage. The operation depends entirely on the operator's feeling, which is not only extremely difficult to operate, but also has the risk of crushing the waste bin during the descent; 2) The structure is complex, making it difficult to manufacture, install, replace and maintain; 3) The anti-sway effect is poor and the work efficiency is low. Low

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