JP2583250Y2 - Cartridge type solid material transfer device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cartridge type solid material conveying device.

[0002]

2. Description of the Related Art Conventionally, as a device for transporting a cartridge-type solid object while changing its direction from a vertical direction to a horizontal direction, there is, for example, a device shown in Japanese Utility Model Laid-Open No. 2-142730. This transport device is provided with a vertical supply pipe into which cartridge-type solids are charged in a vertically stacked state, and a cartridge-type solid that is disposed below the vertical supply pipe and has the vertical supply pipe freely fall down in a horizontal position. It is equipped with a reversing mechanism for changing, a push-out mechanism for feeding a cartridge-type solid in a horizontal position into a horizontal transfer pipe, and the like, so that the cartridge-type solid can be transported without causing deformation or collapse. .

FIGS. 3 and 4 show a conventional example of a transfer device. In this transport device 1, the number of cartridge type solids 3 to be put into the vertical supply pipe 2 is about 20 per lot. Then, after the inside of the vertical supply pipe 2 is dropped and the lower part thereof is held in a vertically stacked state, the subsequent operation by the reversing mechanism 4 or the like is performed for each one.

[0004] The cartridge-type solid 3 used in the transfer device 1 is a fiber-like glass material or the like that is used when vitrifying radioactive waste generated in a nuclear power plant or the like. It is fed into a processing chamber 6 in a radioactive atmosphere disposed downstream of the horizontal transfer pipe 5. Therefore, the horizontal transfer pipe 5 is connected to the processing chamber 6, and even in the vertical supply pipe 2 connected to the horizontal transfer pipe 5, the contaminated gas that has been radioactively contaminated in the processing chamber 6 flows. Can be considered.

Therefore, it is necessary to prevent the contaminated gas from flowing backward through the vertical supply pipe 2 and being discharged to the outside. As a method, a plurality of sealing valves are provided at intervals in the longitudinal direction of the vertical supply pipe 2. 7 is provided, and air supply means 9 is provided in the supply section 8 and the horizontal transport pipe 5 partitioned by the sealing valve 7.
Is arranged. Then, when the cartridge type solid 3 passes, the sealing valve 7 is opened and the sealing valve 7 after passing is closed, and the vertical supply pipe 2 is closed by the air purge means 9 arranged at the subsequent stage of the sealing valve 7. Inner and horizontal transfer pipe 5
The inside air is pushed back to the processing chamber 6 side. In this case, at least one of the plurality of sealing valves 7 is always in the closed state so that the transfer path from the processing chamber 6 to the upper part of the vertical supply pipe 2 is not opened. It is supposed to be.

[0006] The outer diameter of the cartridge type solid 3 is formed to be slightly smaller than the inner diameter of the vertical supply pipe 2. By the inner surface of 2, the posture is maintained in an upright state.

[0007]

However, with such a transport device 1, as shown in FIG. 4, when the cartridge-type solid material 3 is There is a case where the sealing valve 7 disposed below the mold solid 3 is closed. In this case, air is trapped between the cartridge solid 3 and the sealing valve 7. Then, the trapped air only slightly flows above the cartridge type solid 3 through an annular minute gap formed between the outer surface of the cartridge type solid 3 and the inner surface of the vertical supply pipe 2, The resistance of the cartridge-type solid material 3 to fall is reduced, and the falling speed is reduced. Further, when the sealing valve 7 above the falling cartridge type solid 3 is closed, no air is supplied between the cartridge type solid 3 and the sealing valve 7 and a negative pressure state is created. Similarly, the falling speed of the cartridge type solid 3 is reduced.

In such a case, the attitude of the cartridge type solid substance 3 can be easily changed due to its light weight. As a result, there is a problem that the vertical supply pipe 2 is clogged by being caught on the inner wall surface of the vertical supply pipe 2. In particular, the operation of transporting such a cartridge type solid 3 to the processing chamber 6 requires an unattended operation for a long time, and such clogging causes the unattended operation to be performed. It was difficult.

The present invention has been made in view of the above circumstances, and has as its object to prevent the cartridge type solid 3 from being clogged in the vertical supply pipe 2.

[0010]

In order to achieve the above object, the present invention proposes the following two means. The first means includes a vertical supply pipe which is arranged in an upright state and guides the falling of the cartridge-type solid material, and the vertical supply pipe is arranged at an intermediate position in the longitudinal direction of the cartridge-type solid substance. It is divided into a plurality of supply sections in series by a plurality of sealing valves that are opened when an object passes, and both supply sections are connected between supply sections vertically adjacent to each other via a sealing valve except for the lowest sealing valve. Cartridge-type solid material in which a bypass forming a loop flow path is provided as a state, and a bypass valve that is opened and closed in conjunction with a sealing valve in the loop flow path including the bypass is provided in the bypass. Has been proposed. The second means proposes a cartridge-type solid material transfer device in which upper and lower loop flow paths share a part of a supply section with each other.

[0011]

According to the cartridge type solid material transport device of the first means, when the cartridge type solid material is passing through one supply section, the bypass connected to the supply section is opened to open the supply section. Air is formed in the loop flow path formed by the bypass, and the air pushed out by the fall of the cartridge-type solid material is circulated in the loop flow path. As a result, air is not trapped below the cartridge-type solid, and the cartridge-type solid can be smoothly dropped in the vertical supply pipe. According to the cartridge type solid material transport device according to the second means, the sealing valve and the bypass valve are switched when the cartridge type solid material falls in the supply section shared by the vertically adjacent loop flow paths. As a result, the air in the vertical supply pipe is kept so as not to be always trapped, so that the cartridge-type solid can be smoothly dropped at the boundary of the loop flow path without any delay.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the transport device according to the present invention will be described below with reference to FIG. In the figure, 10 is a transfer device, 11 is a vertical supply pipe, 12 and 13 are sealing valves, 1
4 is a supply section, 14a is an upper supply section, 14b is an intermediate supply section, 14c is a lower supply section, 15 is a bypass,
6 is a loop channel, 17 is a bypass valve, 18 and 19 are air purge means, 20 is a compressed air supply system, 21 is an air supply pipe, 22 and 23 are air purge valves, 24 and 25 are sensor means, and 26 is a control device. is there. In the transfer device of the present embodiment, the same reference numerals are given to the same parts as those in the conventional example shown in FIGS. 3 and 4, and the description will be simplified.

In the conveying apparatus 10 of the present embodiment, the vertical supply pipe 11 arranged in an upright state is connected in series by two sealing valves 12 and 13 arranged at an intermediate position in the longitudinal direction. Supply section 14a, intermediate supply section 14b, and lower supply section 14c connected to each other.
Is divided into A bypass 15 is provided between the upper supply section 14a and the intermediate supply section 14b to connect the upper part of the upper supply section 14a and the lower part of the intermediate supply section 14b in a communicating state. , An upper supply section 14a and a lower supply section 14b constitute a loop flow path 16.

The intermediate section supply section 14b of the bypass 15
A bypass valve 17 that opens and closes the bypass 15 is provided in the vicinity of the connection position to the bypass. Further, a position below the sealing valve 12 and close to the sealing valve 12, and
The air purging means 18 is located at a position close to the reversing mechanism 4.
・ 19 are provided respectively.

The air purging means 18 and 19 comprise an air supply pipe 21 for supplying compressed air from an externally provided compressed air supply system 20 and air purge valves 22 and 23 for opening and closing the air supply pipe 21. ing. Then, the air purge valves 22 and 23 are opened to supply compressed air from the compressed air supply system 20 into the transfer device 10, and the air in the piping of the transfer device 10 is pushed into the processing chamber 6 side.

In the upper supply section 14a and the intermediate supply section 14b, sensor means 24 and 25 for detecting the cartridge type solid 3 falling inside are provided, respectively. , Are connected to a control device 26 provided outside. The control device 26 is connected to the sealing valves 12 and 13, the bypass valve 17 and the air purge valves 22 and 23.
The valves 12, 13, 17, 22 and 23 are opened and closed based on the position of the cartridge-type solid 3 detected by 25.

The sensor means 24 and 25 are, for example, non-contact type sensors such as photoelectric tubes or the like.
A signal is output to the control device 26 when passing through the position where the 4.25 is installed.

The control law of the control device 26 may be as follows, for example. When the sensor means 24 detects the cartridge type solid 3, the sealing valve 12 and the bypass valve 17 are opened and the sealing valve 13 is closed. Further, the air purge valve 22 is closed, and the air purge valve 23 is opened. When the sensor means 25 detects the cartridge type solid 3, the sealing valve 13 is opened, and the sealing valve 12 and the bypass valve 17 are closed. Further, the air purge valve 23 is closed and the air purge valve 22 is opened.

According to the conveying device 10 for the cartridge type solid material 3 configured as described above, when the sensor means 24 detects the cartridge type solid material 3, that is, the cartridge type solid material 3 is located in the upper supply section 14a. When closing, the sealing valve 12 and the bypass valve 17 are opened,
The loop passage 16 including the upper supply section 14a, the intermediate supply section 14b, and the bypass 15 is opened. Then, as the cartridge type solid 3 falls, the air located below the cartridge type solid 3 flows through the loop flow path 16 and is returned above the cartridge type solid 3. Thereby, the cartridge type solid 3
Since air is not trapped between the valve and the closed valve 13 in the closed state, the cartridge type solid substance 3 can be smoothly dropped without receiving the resistance of the air. At this time, the air purge means 19 located downstream of the sealing valve 13
Is opened, compressed air is supplied to the subsequent stage of the sealing valve 13 and the air is pushed out to the processing chamber 6 side.

When the sensor 25 detects the cartridge-type solid 3, that is, when the cartridge-type solid 3 has passed the sensor unit 25 installation position in the intermediate supply section 14 b, the sealing valve 13 is opened. , The intermediate supply section 14b and the lower supply section 14c are in communication with each other. When the sealing valve 12 and the bypass valve 17 are closed, the loop flow path 16 is cut off from the supply section 14. At the same time, the air purge means 18 provided above the intermediate section supply section 14b is closed. Air purge valve 2
When the cartridge 2 is opened, compressed air is supplied from above the cartridge-type solid 3, so that the space between the sealing valve 12 and the cartridge-type solid 3 is prevented from becoming negative pressure, and the cartridge-type solid 3 is prevented from becoming negative. The object 3 will not be prevented from falling. Further, by the operation of the air purging means 18, the air present in the intermediate supply section 14b and the lower supply section 14c is pushed out to the processing chamber 6 side by the compressed air, and the contaminated gas in the processing chamber 6 is removed from the vertical supply pipe. Backflow to 21 will be avoided.

FIG. 2 shows a second embodiment of the transfer device according to the present invention. In the transfer device 30, three or more sealing valves 32 are arranged at intervals in the longitudinal direction of the vertical supply pipe 31,
Supply sections 33.3 arranged vertically above and below the sealing valve 32
The third embodiment is different from the first embodiment in that a plurality of loop flow paths 35 are formed by making the 3 communicate with the bypass 34.

The two vertically adjacent loop passages 35 are formed so as to overlap each other while sharing the supply section 33. Each bypass 34 is provided with a bypass valve 36 for opening and closing the bypass 34, and a sensor means 37 is provided in each supply section 33 at a position shared by the loop flow path 35.

In the transfer device 30, a sealing valve 32
Is opened when the passage of the cartridge type solid substance 3 is detected in the supply section 33 located above the bypass section 34. The bypass valve 34 is provided in a loop flow path 35 including the bypass valve 34. It is opened and closed in conjunction with a sealing valve 32 arranged. The air purge valve 38 is provided at a position below each sealing valve 32 and close to the sealing valve 32, and is opened when the sealing valve 32 is closed to be located below the sealing valve 32. The air in the transfer path is pushed out to the processing chamber 6 side.

According to such a transport device 30, when the cartridge type solid substance 3 is located in the supply section 33 shared by the loop flow path 35, the sealing valve 32 located at the top and bottom can be switched. At the boundary of the loop flow path 35, the cartridge-type solid 3 can be dropped without stagnating the air in the transport device 30.

In the first and second embodiments, the supply sections 14 and 33 are provided with sensor means 24 such as photoelectric tubes.
Although 25 and 37 are provided, other sensor means may be provided instead. Further, instead of the sensor means 24, 25, 37, a sealing valve may be linked with a certain delay time.

[0026]

As described above in detail, according to the cartridge type solid material transport device according to the first means, the vertical supply pipe for guiding the drop of the cartridge type solid material is spaced apart in the longitudinal direction. A plurality of supply sections are divided into a plurality of supply sections, and a bypass communicating between the supply sections is provided between supply sections vertically adjacent to each other with the seal valve interposed therebetween. Since the bypass valve which is opened and closed in conjunction with the sealing valve in the loop flow path including the bypass is provided, the following effects are obtained. (1) In the vertical supply pipe, air is confined between the cartridge-type solid and the sealing valve below the same, and the space between the cartridge-type solid and the sealing valve above the same is in a negative pressure state. Is avoided, and the cartridge-type solid is dropped smoothly, so that clogging of the cartridge-type solid in the vertical supply pipe is avoided,
Man-hours required for maintenance can be greatly reduced. (2) Since the cartridge type solid does not clog the vertical supply pipe, continuous unmanned operation for a long time can be performed. Further, according to the cartridge type solid material transport device of the second means, the first and second loop flow paths are formed so as to share a part of the supply section with each other.
In addition to the effect of the means, even when the number of the sealing valves is increased, the air between the sealing valve and the cartridge-type solid is prevented from being stagnated between the sealing valves, and the total length of the vertical supply pipe is reduced. Thus, there is an effect that the cartridge-type solid material can be smoothly dropped through.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a first embodiment of a cartridge-type solid material transport device according to the present invention.

FIG. 2 is a schematic view showing a second embodiment of the cartridge type solid substance transport device according to the present invention.

FIG. 3 is a schematic view showing a conventional example of a cartridge-type solid material transfer device.

FIG. 4 is a longitudinal sectional view showing a cartridge-type solid material that can be dropped from a vertical supply pipe.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveying apparatus 2 Vertical supply pipe 3 Cartridge type solid 4 Inverting mechanism 5 Horizontal conveyance pipe 6 Processing chamber 7 Sealing valve 8 Supply section 9 Air purge means 10 Transfer apparatus 11 Vertical supply pipe 12/13 Sealing valve 14 Supply section 14a Upper supply section 14b Intermediate part supply section 14c Lower supply section 15 Bypass 16 Loop flow path 17 Bypass valve 18/19 Air purge means 20 Compressed air supply system 21 Air supply pipe 22/23 Air purge valve 24/25 Sensor means 26 Control device 30 Transport device 31 Vertical Supply pipe 32 Sealing valve 33 Supply section 34 Bypass 35 Loop flow path 36 Bypass valve 37 Sensor means 38 Air purge valve

Claims (2)

(57) [Scope of request for utility model registration] 1. A cartridge-type solid material, comprising: a vertical supply pipe arranged in an upright state and guiding a drop of a cartridge-type solid substance, wherein the vertical supply pipe is disposed at an intermediate position in a longitudinal direction of the cartridge-type solid substance. Is divided into a plurality of supply sections by a plurality of sealing valves which are opened at the time of passage, and both supply sections are communicated between supply sections vertically adjacent to each other through a sealing valve except for a lowermost sealing valve to form a loop flow. A cartridge that forms a passage; and a bypass valve that is opened and closed in conjunction with a sealing valve in a loop flow path including the bypass. Equipment for transporting goods. 2. The apparatus according to claim 1, wherein the vertically adjacent loop channels share a part of the supply section with each other.