JPH0512478U - Cask transfer device - Google Patents

Abstract

(57) [Summary] [Objective] To provide a cask transfer device capable of safely transferring and placing a cask to a high position. [Structure] A substantially rectangular horizontal suspension frame (1) that can be hung on a crane, and four trunnions of casks (5) with upper ends attached near the four corners of the horizontal suspension frame and lower ends set sideways. Four cask suspension arms (2a to 2d) attached to (5a to 5d) respectively, a substantially rectangular pallet (3) on which the cask (5) is mounted together with its skid (6), and the upper end is the above horizontal suspension. They are installed near the four corners of the frame (1), and the lower end is the above pallet.
The cask transfer device is composed of four pallet suspension arms (4a to 4d) mounted near the four corners of (3). [Effect] Since the cask is double suspended by four cask suspension arms and four pallet suspension arms, the safety is significantly improved compared to the conventional single suspension system, and the cask can be safely transferred to a high position. Can be stationary.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cask transfer device that is used when a barrel-shaped cask (spent fuel transport container) that stores spent fuel generated in nuclear power generation or the like is laid sideways and is carried by a crane and set stationary.

[0002]

[Prior Art]

 Conventionally, in the case of transferring a cask as described above, a cask transfer device having a front view thereof in FIG. 4 and a left side view thereof in FIG. 5 has been used. That is, the lower ends of four cask suspension arms 2a, 2b, 2c, 2d (2c are hidden and invisible) suspended from the four corners of the horizontal suspension frame 1 that can be lifted by a crane are provided on the cask 5 itself. They were hung on four trunnions 5a, 5b, 5c, and 5d (5c is hidden and invisible) and hung horizontally and transferred.

[0003] Although safety measures such as doubling the wires are taken on the crane side, the suspension device from the frame is a single suspension, so the cask suspension arms 2a, 2b, 2c, 2 If any of the d or trunnions 5a, 5b, 5c, 5d is damaged, there is a risk of falling, so the hoisting height was limited to a height that was safe even if the cask fell. Therefore, it is also difficult to stack the casks high and set them in place.

[0004]

[Problems to be solved by the device]

 The present invention has been made to solve the above problems, and an object of the present invention is to provide a cask transfer device capable of safely transferring and placing a cask to a high position.

[0005]

[Means for Solving the Problems]

 The above-mentioned purpose is to mount a substantially rectangular horizontal suspension frame that can be suspended on a crane, and its upper end is attached near each of the four corners of the horizontal suspension frame, and its lower end is attached to four trunnions of a cask set horizontally. Four cask suspension arms, a substantially rectangular pallet for mounting the cask together with its skids, upper ends attached to the four corners of the horizontal suspension frame, and lower ends attached to the four corners of the pallet. It can be achieved by a cask transfer device composed of four pallet suspension arms.

[0006]

[Action]

 With the cask transfer device configured as described above, the cask is double-suspended by the four cask suspension arms and the four pallet suspension arms, so the safety is significantly improved compared to the conventional single suspension system. The cask can be safely transferred to a high position and placed in a fixed position.

[0007]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view showing an embodiment of a cask transfer device according to the present invention, FIG. 2 is a left side view thereof, and FIG. 3 is an explanatory view showing a state where the cask is stacked and placed.

In FIGS. 1 and 2, reference numeral 1 denotes a substantially rectangular horizontal suspension frame that can be lifted by a crane, and 2a, 2b, 2c, 2d (2c is hidden and invisible) are located near four corners of the horizontal suspension frame 1. Four cask suspension arms suspended respectively, 3 pallets, 4a, 4b, 4c, 4d (4c hidden and invisible) 4 suspended from four corners of the horizontal suspension frame 1 respectively The pallet suspension arm 5 is a cask placed on the skid 6, and 5a, 5b, 5c, 5d (5c is hidden and invisible) are trunnions provided on the cask. Suspended handles 3a, 3b, 3c, 3d (3c is hidden and not visible) are provided at the four corners of the pallet 3, and the lower ends of the pallet suspension arms 4a, 4b, 4c, 4d are bolted to them. ing.

Therefore, when transferring the cask 5, the cask 5 placed on the skid 6 is mounted on the pallet 3 together with the skid 6, and the cask 5 is mounted on the trunnions 5a, 5b, 5c, 5d provided on the cask 5 itself. Hang the lower ends of the suspension arms 2a, 2b, 2c, 2d. At this time, the suspension handles 3a, 3b, 3c, 3d at the four corners of the pallet 3 are also bolted to the lower ends of the pallet suspension arms 4a, 4b, 4c, 4d.

In this state, when the hook of the crane is hooked on the handle of the horizontal suspension frame 1 and the horizontal suspension frame 1 is lifted, the cask 5 is lifted by the cask suspension arms 2a, 2b, 2c, 2d and the pallet suspension arm is also lifted. The pallet 3 is also hoisted together by 4a, 4b, 4c and 4d. Therefore, the cask 5 is consequently double suspended by the cask suspension arm and the pallet suspension arm, and these arms or trunnions 5a, 5b, 5c, 5d, suspension handles 3a, 3b, 3c, 3d, etc. There is no danger that the cask 5 will immediately drop even if any of the above occurs abnormally, so that it becomes possible to transfer the cask to a high position.

Since there is no risk of the cask 5 falling in this way, the cask 5 can be lifted to a high position by an overhead crane 7 as shown in FIG. 3, stacked in multiple stages, and stored. Also, after the transfer, by removing the pallet lifting arms 4a, 4b, 4c, 4d from the lifting handles 3a, 3b, 3c, 3d of the pallet 3, the pallet 3 can be used as a cask stand as shown in FIG. It can function as a partition lid with the lower cask storage room.

[0012]

[Effect of the device]

 Since the present invention is configured as described above, according to the present invention, the safety is remarkably improved as compared with the conventional single-hanging cask transfer device, and the cask can be safely transferred to a high position and placed in a storage space. The utilization efficiency of can be improved.

It should be noted that the present invention is not limited to the above-described embodiments, but includes all modified embodiments that can be easily conceived by those skilled in the art from the above description within the scope of the object of the present invention. is there.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a cask transfer device according to the present invention.

FIG. 2 is a left side view thereof.

FIG. 3 is an explanatory diagram showing a state in which the cask is stacked and placed stationary.

FIG. 4 is a front view showing an example of a conventional cask transfer device.

FIG. 5 is a left side view thereof.

[Explanation of symbols]

 1 Horizontal suspension frame 2a-2d Cask suspension arm 3 Pallet 3a-3d Suspension handle 4a-4d Pallet suspension arm 5 Cask 5a-5d Trunnion 6 Skid 7 Overhead crane

Claims (1)

[Scope of utility model registration request] 1. A substantially rectangular horizontal suspension frame (1) which can be hung on a crane, and four casks (5) each having an upper end attached near four corners of the horizontal suspension frame and a lower end set sideways.
4 attached to each trunnion (5a-5d)
Bookshelf suspension arms (2a to 2d), a roughly rectangular pallet (3) for mounting the cask (5) together with its skids (6), and the upper ends of the pallets near the four corners of the horizontal suspension frame (1). And four lower ends of the pallets (4a to 4) whose lower ends are attached near the four corners of the pallet (3).
d) A cask transfer device consisting of and.