JPS62211595A - Galss blank shifter in radioactive waste liquor glass solidifying plant - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a glass material transfer device in a radioactive waste liquid vitrification plant that vitrifies radioactive waste liquid.

"Conventional technology and its problems" Generally, in a so-called vitrification plant that vitrifies high-level radioactive waste liquid generated in nuclear power generation facilities, etc., a glass melting furnace is used as shown in the conventional example shown in Figure 2. The radioactive waste liquid and the glass material (called a glass cartridge) 3 are sequentially dropped into the glass melt 2 as shown in the arrow and melted, and the molten mixture is poured into another container. A series of vitrification treatments are then performed, including filling with helium gas for leakage inspection.

The glass material 3 is made of, for example, knitted glass fibers and wound into a roll in order to absorb radioactive waste liquid and to easily retain this waste liquid inside. They are stored vertically in the storage section 4a, are dropped from the outlet 6 of the support table 5 through the supply pipe 7, and are intermittently delivered to the glass melting furnace 1 via the delivery pipe 9 by a transfer device 8 (for example, a transfer piston). We are trying to make sure that it is supplied to the world.

By the way, the glass material 3 is made by molding glass fiber into a cylindrical shape, for example, and is therefore stable in the axial direction, but it is difficult and difficult to mechanically manipulate in the radial direction. It is stable.

For this reason, when transferring, it is required to send out along the axial direction, but in a radioactive waste liquid vitrification plant, the glass material 3 is dropped vertically from its storage container 4 and transferred. Since the glass material 3 must be fed horizontally into the glass melting furnace 1 by means of a device (for example a transfer piston) 8, it is necessary to change the orientation of the glass material 3 at the transfer device 8.

``Object of the Invention'' The purpose of the present invention is to effectively solve these problems, and the purpose of the present invention is to invert the glass material dropped vertically from the storage container and extrude it horizontally. We are trying to transport it in a stable state.

"Means for achieving the object" The glass material transfer device according to the present invention inverts a cylindrical glass material received from the supply port of the housing with its axis oriented vertically, and melts the glass material in a radioactive waste liquid solidification plant from the delivery port. The device that sends the glass material to the furnace includes a mounting plate that receives the glass material from the supply port and places it in an upright state, and a second plate that is located above this mounting plate and that transports the glass material horizontally in an upright state. 1 transfer piston, and a second transfer piston that is disposed below the mounting plate so as to be movable in a horizontal direction parallel to the first transfer piston and pushes out the glass material in the axial direction thereof, and The present invention is characterized in that a pit hole is formed through which the glass material temporarily pushed by the first transfer piston falls in an inverted state at the tip of the second transfer piston.

"Operation" With this configuration, the glass material received from the supply port of the housing is placed on the mounting plate with its axis directed vertically, and is held upright by the first transfer piston. will be transported to the pit. Then, as the first transfer piston moves, the glass is dropped through the pit, is turned sideways at the tip of the second transfer piston, and is fed horizontally to the glass melting furnace by the second transfer piston with its axial direction facing horizontally. be done.

“Example” An example of the glass material transfer device according to the present invention will be described below.
To explain based on FIG. 1, the supply pipe 7 for the glass material 3
In the housing 10 disposed between the and the delivery pipe 9,
A mounting plate 11 on which the glass material 3 is placed in an upright state (with the axis oriented vertically) so as to divide the interior vertically.
The housing 1 is protruded and faces the upper surface of the mounting plate 11.
0, there is a supply port 1 (l) communicating with the supply pipe 7.
A is formed in the left side wall of the housing 10, and a delivery port 10b communicating with the delivery pipe 9 is formed below the mounting plate 11.

On the other hand, above and below the mounting plate 11, there are a first transfer piston 12 for horizontally transferring the glass material 3 received upright from the supply port 10a, and a first transfer piston 12 for horizontally transporting the glass material 3 in an inverted state. Second transfer pistons 13 that push toward the delivery port tab along the direction are disposed so as to be movable in parallel and along the length direction (horizontal direction) of the housing 10. End (first
A pit hole 1 is provided at the left end of the figure to drop the glass material 3 onto the tip of the second transfer piston 13 in a 90° inverted state.
4 is formed.

Description first transfer piston 12 and second transfer piston 13
are moved in the left-right direction by air cylinders 17 connected to the right side of the housing 10 by bolts 15 and nuts 16, respectively. That is, these transfer pistons 12, 13 have their base ends fixed above and below a connecting plate 18 provided on a rod 17a of the air cylinder 17, and are moved left and right by the expansion and contraction of the rod 17a. . Further, the length L1 of the first transfer piston 12 is equal to the length of the second transfer piston 13.
The air cylinder 1 is set longer than the length L2 of the air cylinder 1.
The structure is such that the glass material 3 can be reversed and dropped from the pit hole 14 to the tip of the second transfer piston 13 during the extension process of the rods 1 and 7a.

Hereinafter, the operation of the glass material transfer device will be briefly explained.

First, the glass material 3 passes through the supply pipe 7 and the housing 1
When the air cylinder 17 is received from the supply port 10a onto the mounting plate 11, the rod 17a of the air cylinder 17 is extended, and the first
The glass material 3 is transferred to the pit hole 14 in an upright state by the transfer piston 12. Next, when the glass material 3 is dropped from the pit hole 14 by the movement of the first transfer piston 12, the glass material 3 is reversed by <90 degrees as shown by the dashed line in the first part, and this reversal causes the second transfer piston to be dropped. It is placed on the bottom plate of the housing 10 at the tip of the housing 13 with its axis oriented horizontally. After the glass material 3 is reversed, the second transfer piston 13, which has moved with the extension of the rod 17a, moves the glass material 3
Press the bottom of the housing 10 to send it out to the outlet 10b of the housing 10.

Next, the glass material 3 is horizontally supplied to the glass melting furnace 1 by the second transfer piston 13, and when the rod 17a of the air cylinder 17 is returned, the first and second transfer pistons 1
2.13 is returned to its original position, the supply port 10a is opened, and the glass material 3 is dropped onto the mounting plate 11 from there.

In the glass material transfer device as described above, the glass material 3 dropped vertically onto the mounting plate 11 through the supply pipe 7 is
As the first transfer piston 12 moves, it is dropped from the pit hole 14 and reversed, and sent to the glass melting furnace l in order with its axis oriented horizontally by the second transfer piston 13, so that the glass material 3 is oriented toward its axis. This makes it possible to always transfer in a stable state. In addition, since the glass material 3 has a simple structure in which the glass material 3 is inverted by dropping it into the pit hole 14 and inverting it, the entire device can be made more compact, thereby reducing the installation space of the device. There are also advantages such as being able to

"Effects of the Invention" As is clear from the above explanation, the glass material transfer device according to the present invention transfers the cylindrical glass material received from the supply port of the housing with the axis oriented vertically to the mounting plate. The radioactive waste liquid is placed on top of the top, dropped through a pit by the first transfer piston, reversed, and sent from the outlet to the glass melting furnace of the radioactive waste vitrification plant by the second transfer piston, so it falls vertically from the supply pipe. It has the excellent effect of being able to transport glass materials in a mechanically stable state by changing the orientation horizontally with a simple structure.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of a glass material transfer device according to the present invention, and FIG. 2 is a diagram illustrating the configuration of a conventional glass material supply device in a vitrification plant. 1... Glass melting furnace, 7... Supply pipe,
9... Delivery pipe, 10... Housing,
10a... Supply port, 10b... Delivery port, 11... Placement plate, 12... First transfer piston, 13... second transfer piston, 14.
... Pithole, 17 ... Air cylinder, 17a ... Rod, 18 ... Connection plate.

Claims (1)

[Claims] A transfer device that inverts a cylindrical glass material received from a supply port of a housing with its axis oriented vertically and sequentially sends it from a delivery port to a glass melting furnace of a radioactive waste liquid solidification plant, the glass material being supplied. A placing plate that receives the glass material from the mouth and places it in an upright state, a first transfer piston that is located above this placing plate and transfers the glass material in an upright state in a horizontal direction, and below the placing plate. 1st on the side
a second transfer piston that is movably disposed in a horizontal direction parallel to the transfer piston and pushes out the glass material in its axial direction; A glass material transfer device in a radioactive waste liquid vitrification plant, characterized in that a pit hole is formed at the tip of the second transfer piston to drop the material in an inverted state.